Calendar mechanism and timepiece including such mechanism.

专利摘要:
The invention relates to a calendar mechanism and a timepiece provided with such a mechanism, capable of dispensing with a complex structure and effectively carrying out the indication of the month and the date. Such a timing mechanism (1) for a timepiece (2) comprises a date indicator (40) which comprises a date wheel 45 provided with a notch 48, an actuating lever (70) attached to the date indicator and pivoted thereto, and which is provided with a tooth-shaped engagement portion (73) insertable or removable from the nock. The actuating lever can be pivoted between a pre-advance authorization position (P2) where the tooth-shaped engagement portion (73) is inserted into the notch (48), thus allowing a retrofit indexing for the date indicator (40), and a regular indexing position (P1) where the tooth-shaped engagement portion (73) is removed from the notch (48), thereby making possible a regular daily indexing of the date indicator (40). The date indicator (40) is rotated one day before the regular daily indexing time when it is set in the pre-advance authorization position. A cam of months (64) which has a cam surface indicating long months and short months, is arranged to control a control rocker structure (4) which includes a cam follower engaged with the cam of the months and is driven in response to rotation of the cam of the months (64) to allow the actuating lever (70) to be rotated between the regular indexing position (P1) and the pre-advance authorization position (P2).
公开号:CH705086B1
申请号:CH00782/12
申请日:2012-06-06
公开日:2017-09-15
发明作者:Suzuki Shigeo；Watanabe Mamoru
申请人:Seiko Instr Inc；
IPC主号:

专利说明:

Description 1. Field of the Invention [0001] The present invention relates to a calendar mechanism and a timepiece comprising such a mechanism. 2. Description of the Prior Art [0002] From the prior art are known mechanisms called automatic calendar mechanisms, which distinguish between a long month (a month of 31 days) and a short month (a month with 30 days). days or less) and perform date advancement.
In the automatic calendar mechanism, a date is advanced by a total of two days at the end of the month (30th date) in the short month other than February, and for this a variety of mechanisms have been proposed ( Japanese Patent No. 2,651,150 (Patent Document 1) or JP-A-2005-326,420 [Patent Document 2]).
In the calendar mechanism of Japanese patent no. 2,651,150 (patent document 1), a month cam to distinguish a month long from a short month is used, but an elastic part of the date advance finger arm is forced to be deformed and is advanced by one tooth per day in a normal state (dates other than the end of the short month), and the stability of the date advance finger operation is easily damaged. In addition, a load relative to the rotation of the wheel train is easily increased structurally, and then a loss of energy is easily increased. In addition, the use of the month cam itself is widely known (for example, JP-A-2009-128 119 [Patent Document 3] in addition to Japanese Patent No. 2,651,150 [Patent Document 1 ]).
In the calendar mechanism of JP-A-2009-128 119 (patent document 2), an additional mechanism may be attached to the date indicator, but a mechanism based on a helical wheel to which the number of teeth is set to operate in a predetermined manner is used, and the resulting structure can be very complicated. SUMMARY OF THE INVENTION [0006] The present invention has been made in consideration of various problems, and there is provided a calendar mechanism and a timepiece with a calendar mechanism including such a mechanism capable of avoiding complexity. of the structure and effectively perform the indication of the month and date, providing a month cam and a toggle on a date indicator, which includes a tooth-shaped finger (tooth-shaped engagement portion ) to advance the date in the same manner as the date wheel teeth, but which may protrude inward or withdraw from it.
To achieve this purpose, there is provided a calendar mechanism including a date indicator which includes a date wheel having a notch extending in a radial direction of a diameter thereof; an actuating lever which is pivotally attached to the date indicator with respect to a date wheel, and is provided at one of its ends with a tooth-shaped engagement portion; said actuator latch being insertable into the notch formed in the date indicator, and removed therefrom as a result of a pivotal movement, and pivotable between a pre-advance authorization position where the portion of tooth-shaped engagement is inserted into the notch and is likely to cooperate with a date finger, thereby making possible catch-up indexing for the date indicator, and a regular daily indexing position where the engagement portion in the form of a tooth withdraws further from the notch relative to the pre-advance authorization position, so that the date finger can perform regular daily indexing, the date finger cooperating with the shaped engagement portion of tooth before the regular daily indexing time and causing the date indicator to rotate one more day before the time of indexation n regular daily when the operating rocker is in the pre-advance clearance position; a cam of the months which is rotatable depending on the rotation of an indication wheel of the current month and has a cam surface indicating the long months and the short months; and a control flip-flop structure which includes a cam follower engaged with the cam of the months, and is driven in response to rotation of the cam of the months to allow the actuating flip-flop to be rotated between the position of the cam regular daily indexing and pre-advance authorization position, the control flip-flop structure being arranged to allow the actuating flip-flop to be moved into the pre-advance authorization position when one passes a short month to a month long.
In the calendar mechanism of the present invention, there is provided an actuating lever which is fixed to the date indicator pivotally relative to the date wheel and is provided with one of its ends of the tooth-shaped engagement portion; said actuator latch being insertable into the notch formed by the date indicator when pivoted, and pivotable between a pre-advance authorization position where the tooth-shaped engagement portion is inserted into the notch and is likely to cooperate with a date finger, thus making possible a catch-up indexing for the date indicator, and a regular daily indexing position where the tooth-shaped engagement portion is further removed from the notch relative to the pre-advance authorization position, so that the date finger can perform regular daily indexing, and the date finger cooperating with the tooth-shaped engagement portion prior to adjustment of the regular daily indexing and causing the date indicator to rotate one more day before the regular daily indexation time when the actuating lever is in the pre-enable authorization position; and a control flip-flop structure which includes a cam follower engaged with the cam of the months, and is driven in response to rotation of the cam of the months to allow the actuating flip-flop to be rotated between the position of the cam regular daily indexing and pre-advance authorization position, and thus the control rocker structure is driven by the cam of the months such that the actuator rocker is allowed to be moved into the pre-advance authorization position by the structure control rocker. As a result, when you change from a short month to a long month, the date finger is engaged with the tooth-shaped engagement portion before setting the regular daily indexing and rotating the date indicator one extra day before the regular daily indexing time. As a result, the transition from one month to a long month can be done automatically without requiring manual adjustment at the end of the short month.
In addition, in the calendar mechanism of the present invention, the date indicator includes a date wheel provided with the notch extending in the radial direction of a diameter thereof, the flip-flop of the invention. The actuator is pivotally attached to the date indicator relative to the date wheel, and the actuating lever includes the tooth-shaped engagement portion which is operated in the same manner as the wheel teeth. of date (to be however identical to these in some cases, but different from these in other cases), where the indication of the month and the date can be effected efficiently while preventing the complexity of the structure .
In the calendar mechanism according to one aspect of the present invention, the date wheel may include a notch between the adjacent teeth, and the actuation lever is pivotable between a pre-advance authorization position where the tooth-shaped engagement portion is inserted into the notch and a regular daily indexing position where the tooth-shaped engagement portion is arranged to withdraw from the notch and move away from the date finger , so that regular daily indexing is possible, and when one short month to a long month is passed, the actuating lever is arranged to take the pre-advance authorization position where the commitment portion tooth-shaped is inserted into the notch, and the date finger cooperates with the tooth-shaped engagement portion prior to the regular daily indexing moment and causes the indentation. date in rotation one more day before regular indexing.
In this case, since the notch is formed between the adjacent teeth of the date wheel, the tooth-shaped engagement portion inserted in the notch is engaged with the front tooth-shaped engagement portion. setting the regular daily indexing and can rotate the date indicator earlier than the regular daily indexing time. Here, since a rotation of the position of the date wheel is indexed by the date jumper, the date finger is engaged with the tooth-shaped engagement portion before the regular daily indexing and is rotated before the regular daily indexing, thereafter the date indicator is set to a predetermined position by a function of the date jumper, another date advancement is performed, and the date indicator is rotated by one day additional. In addition, in this case, since the date advancement is performed twice for a short period, the date advancement corresponding to two days is made on the night of the end of the month (30th date) in a short month to minimize the feeling of discomfort.
In this case, in the calendar mechanism according to the present invention, typically, when the actuating lever is in the pre-advance authorization position, the tooth-shaped engagement portion is arranged to protrude towards the in the radial direction of a diameter of the date wheel, flush with the same level as the other teeth forming the date wheel, and when the actuating lever takes the regular daily indexation position, the portion of the date wheel is tooth-shaped engagement is arranged to retract outwardly from the notch in the radial direction along a diameter of the notch date wheel to be located further outward relative to to the other teeth of the date wheel.
In this case, since the notch is formed between the teeth of the date wheel, it can be relatively easily formed. In addition, by not forming the notch in the middle of the adjacent teeth but in a different position at the circumference of the date wheel, or by changing the projection length of the tooth-shaped engagement portion, it It is possible to change the setting of the first date change from two date changes when a short month passes to a long month.
In the calendar mechanism according to another aspect of the present invention, the date wheel includes a groove-like notch which extends radially along a tooth and is at least partially superimposed on that tooth at the same time. of the circumference of the date wheel, and, when one goes from a short month to a long month, the tooth-shaped engagement portion of the actuating lever is arranged to be inserted into the notch in the form of a groove, so that the date indicator is rotated one more day.
In this case, since the notch is rather formed at the circumferential directional position overlapping the tooth of the date wheel, an interval between the teeth of the date wheel may be small.
In this case, in the calendar mechanism of the present invention, typically, when the actuation lever is in the pre-advance authorization position, the tooth-shaped engagement portion is arranged to project further to the inside in the radial direction of a diameter of the date wheel as the other teeth of the date wheel, and when the actuating lever takes the regular daily indexing position, the engagement portion shaped like tooth is arranged to withdraw outwardly from the detailed portion in the radial direction of the diameter of the date wheel so as to be located more outward than the other teeth of the date wheel in the radial direction of the diameter of it.
In this case, by changing the projection length of the tooth-shaped engagement portion of the notch, it is possible to change the setting of a first indexing relating to a change of date when two changes of date are involved during a shift from a short month to a long month.
In the calendar mechanism according to yet another aspect of the present invention, the date wheel comprises a set of teeth arranged on thirty-one equal meshing sectors, one of the teeth having been omitted on one of these sectors of the invention. meshing to form the notch, and, when a short month to a long month is passed, the tooth-shaped engagement portion of the actuating lever is arranged to be inserted into the shaped notch groove, and cause the date indicator to rotate an extra day.
In this case, since the notch is rather formed in a place where the tooth is located at the origin, it is possible to remove the influence that the formation of the notch has on the other parts at least.
In the calendar mechanism of the present invention, typically, when the actuating lever is in the pre-advance clearance position, the tooth-shaped engagement portion is arranged to project further inward than the other teeth of the date wheel in the radial direction of the diameter thereof, and when the actuating lever takes the regular daily indexation position, the tooth-shaped engagement portion is arranged to withdraw towards the outside of Γ notch in the radial direction of the diameter of the date wheel relative to the pre-advance clearance position, but while still protruding inward in the same proportions as the other teeth of the wheel of date in the radial direction of the diameter thereof.
In this case also, by changing the projection length of the tooth-shaped engagement portion of the notch, it is possible to change the setting of a first date change of two date changes when a short month goes to a long month. Further, in this case, even at the regular daily indexing position, the tooth-shaped engagement portion contributes to the date advancement in the same way as the typical date wheel teeth, and it is possible to use the tooth-shaped engagement portion as much as possible.
In the calendar mechanism of the present invention, typically, the control flip-flop structure includes a first control flip-flop which is arranged to be driven by the month cam, and a second flip-flop which is arranged to be driven by the rotation of the first control rocker and control the pivoting of the actuating lever.
In this case, the month cam is effectively easily connected to the actuating lever. However, other structures can be used.
In the calendar mechanism of the present invention, typically, the operation rocker is configured to take the pre-advance authorization position at the end of a month, in a pivoting position which is the one that takes the operation rocker during each short month, so that the actuating lever takes the pre-advance authorization position at the end of each short month, and the tooth-shaped engagement portion of the flip-flop actuator is inserted into the notch.
In this case, the attachment to the actuating lever can be used to the maximum. Further, a relative positional relationship between the actuating lever and the control latch structure at a time near the end of the month is set by a position or shape of a lateral surface portion (an outer surface in the examples shown later) of the actuating flip-flop, and, alternatively, can be adjusted by a shape of a part interfering with the actuating flip-flop in the control flip-flop structure (a second control flip-flop in the control flip-flops). examples shown later) (in the examples shown later described, a pin-shaped pressing portion of the second control flip-flop can have a shape that varies in the circumferential direction).
The present invention also relates to a timepiece comprising the calendar mechanism of the present invention described above to achieve the goals elicited.
Brief description of the drawings [0027]
Fig. 1 is a diagram illustrating the exterior of a timepiece provided with a calendar mechanism according to a preferred embodiment of the present invention, the calendar mechanism being an automatic calendar mechanism according to a preferred embodiment of the present invention. the present invention.
Fig. 2 is a plan view of the timepiece with a calendar mechanism shown in FIG. 1 (state where a dial or hour indication hands are removed).
Fig. 3 is a plan view illustrating the same state as in FIG. 2 and shows the timepiece indicating May 29th.
Fig. 4 is a sectional view of the timepiece shown in FIG. 1.
Fig. 5 is another sectional view of the timepiece shown in FIG. 1.
Fig. 6 is another sectional view of the timepiece shown in FIG. 1.
Fig. 7 shows a state where the timepiece shown in FIG. 2 indicates April 29, wherein (a) is a plan view which is the same as FIG. 2 before a date change (changing in the date indication) from April 29 to the next day is started, and (b) is a plan view that is the same as fig. 2 immediately before a change of date from April 29 to the next day begins.
Fig. 8 shows a state where the timepiece shown in FIG. 2 indicates April 30, wherein (a) is a plan view which is the same as FIG. 2 before a date change (changing in the date indication) from April 30 to the next day begins, and (b) is a plan view that is the same as fig. 2 immediately before two changes in the April 30 date marking corresponding to the end of the month of the month runs to the next day begin.
Fig. 9 shows an intermediate state where the timepiece shown in FIG. 2 has been changed from April 30 to May 1, in which (a) is a plan view which is the same as FIG. 2 in the first change of the two changes in the date indication of April 30 corresponding to the end of the month of the short month to the next day, and (b) is a plan view which is the same as fig. 2 immediately before the first change of the two changes in the April 30th date marking corresponding to the end of the month of the month runs to the next day is completed.
Fig. 10 shows an intermediate state where the timepiece shown in FIG. 2 has been changed from April 30 to May 1, in which (a) is a plan view which is the same as FIG. 2 and shows a state immediately after the first change of the two changes in the April 30th ending date marking of the end of the month of the month runs to the next day is completed, and (b) is a plan view that is the same as fig. 2 and shows a state where the timepiece enters a process for a second change after the first change of the two changes in the date indication from April 30th corresponding to the end of the month of the month runs to the next day is completed.
Fig. 11 shows an intermediate state where the timepiece shown in FIG. 2 has been changed from April 30 to May 1, in which (a) is a plan view which is the same as FIG. 2 and shows a state where the second change of the two changes in the date indication from April 30 corresponding to the end of the month of the month runs to the next day is started, and (b) is a plan view that is the same as fig. 2 and shows an intermediate state where the second change of the two changes in the date indication from April 30th corresponding to the end of the month of the month runs to the next day is progressing.
Fig. 12 is a plan view which is the same as FIG. 2 and shows a status immediately after the change from April 30 to the next day is completed.
Fig. 13 shows the timepiece shown in FIG. 2 which makes a change in non-indication from May 31 to the next day, in which (a) is a plan view which is the same as FIG. 2 and shows a state immediately before a change of date from May 31 to the next day is made, and (b) is a plan view which is the same as FIG. 2 and shows a state immediately after a change of date from May 31st to the next day (June 1st) is made.
Fig. 14 is a plan view which is the same as FIG. 2 and shows a timepiece with a calendar mechanism according to another preferred embodiment of the present invention having an automatic calendar mechanism according to another preferred embodiment of the present invention.
Fig. 15 is a sectional view which is the same as FIG. 4 and shows the timepiece with the calendar mechanism having the automatic calendar mechanism shown in FIG. 14.
Fig. 16 shows a state where the timepiece shown in FIG. 14 indicates April 29, in which (a) is a plan view which is the same as FIG. 14 before a change of date (change in indication of the date) from April 29 to the following day is begun, and (b) is a plan view that is the same as fig. 14 immediately before a change of date from the 29th of April to the next day
Fig. 17 shows a state where the timepiece shown in FIG. 14 indicates April 30, in which (a) is a plan view which is the same as FIG. 14 before a change of date (change in date indication) from April 30 to the following day is begun, and (b) is a plan view that is the same as fig. 14 and shows an intermediate state where a first change of the two changes of the date indication from April 30 to the next day is progressing.
Fig. 18 shows an intermediate state where the timepiece shown in FIG. 14 has been changed from April 30 to May 1, in which (a) is a plan view which is the same as FIG. 14 and shows a state where the first change of the two changes in the date indication from April 30 to May 1 is over, and (b) is a plan view that is the same as FIG. 14 and shows a state where the preparation for a second change of the two changes in the date indication from April 30 to May 1 is over.
Fig. 19 is a plan view which is the same as FIG. 2 or FIG. 14 and shows a timepiece with a calendar mechanism according to yet another preferred embodiment of the present invention having an automatic calendar mechanism according to yet another preferred embodiment of the present invention.
Fig. 20 is a plan view which is the same as FIG. 19 and shows a state where the timepiece indicates April 30, and before a change of date from April 30 to the next day (changing in date indication).
Fig. 21 is a plan view which is the same as FIG. 19 and shows an intermediate state where a first change of the two changes of the date indication from April 30 to May 1 is in progress.
Fig. 22 is a plan view which is the same as FIG. 19 and shows a state where the first change of the two changes in the date indication from April 30 to May 1 is complete.
Fig. 23 is a plan view which is the same as FIG. 19 and shows a state where the second change of the two changes in the date indication from April 30 to May 1 is complete.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0028] Several preferred embodiments of the present invention will be described based on the preferred embodiments shown in the accompanying drawings.
[Embodiments] [0029] Figs. 1 to 16 show a timepiece having an automatic calendar mechanism 1 according to a preferred embodiment of the present invention, that is to say, a timepiece with a calendar mechanism 2.
The timepiece with a calendar mechanism 2 has an exterior 3 as shown in FIG. 1. In other words, the timepiece with a calendar mechanism 2 is provided with time indication hands 11 formed by an hour hand 11a, a minute hand 11b, and a second hand 11c to enable rotate clockwise C1 around a central axis line C. A dial 12 of the timepiece with calendar mechanism 2 includes a window indicating the date and months 13 having a month indication zone 13a and a date indication zone 13b. The reference sign 14 designates a timepiece box, and the reference sign 15 designates a crown.
In the example illustrated in FIG. 4, an hour mobile comprising a wheel and a pinion hours 16a in which the hour hand 11a is attached to a front end of this mobile hours, a minute mobile comprising a wheel and a minute pinion 16b in which the minute hand 11b is attached to a front end of this minute hand, and a second hand comprising a wheel and a second gear or a fourth wheel and a pinion 16c to which the second hand 11c is attached to the at one end thereof are rotatably supported around the central axis C by a central barrel 7b which is held by a main plate 6 or a center wheel bridge 7a, and is driven into rotation by needle operation wheels 17 which connect the hours wheel (cannon wheel) 17a of the hours mobile 16a, the minute wheel or center wheel 17b of the minutes hand wheel 16b, and the wheel of s 17c seconds of the fourth mobile 16c to each other and includes other cogs connecting them to a drive source (not shown) such as a drum drum having a timepiece motor spring. Reference sign 17f designates a ball bearing supporting a 17g swing weight to automatically cock the mainspring.
As shown in FIG. 2, a date indicator drive wheel 30 meshes with the hour wheel 17a of the wheel and the hour gear 16a by a date indicator driving a wheel 31 by a first and a second intermediate date wheel 33 and 34, and is rotated at a speed of a rotation / day in a direction H1 around a central axis line H, intermittently rotating a date indicator 40 by a date finger 32 in the opposite direction of clockwise C2.
As can be seen in FIG. 4, when viewed in conjunction with FIG. 2, the date indicator 40 includes a date indication wheel 41 having a large diameter and a flattened ring shape, a large diameter cylindrical portion 42a which extends in parallel in the edge axis line. internal of the date indication wheel 41, a flange portion 42b which extends inward in the diameter direction of the low end of the large diameter cylindrical portion 42a, a thick cylindrical portion and small diameter 42c which extends in parallel in the axis line direction of the inner edge of the flange portion 42b, a date wheel 45 which is formed at the inner circumferential edge on the bottom side of the thick cylindrical portion and a small diameter 42c, and a month advancement tooth 46 which is formed at the inner circumferential edge of the cylindrical portion of large diameter 42a.
[0034] The month advancement tooth 46 includes two teeth 46a and 46b. The characters LD indicating thirty-one dates from 1 to 31 are displayed on the surface 41a on the side of the dial of the date indication wheel 41 at the same interval. The date wheel 45 includes thirty-one teeth 47 arranged in equal intervals. In this example, a notch 48 is provided between specific teeth 47a and 47b which are adjacent to each other. The notch 48 has a width in the circumferential direction which is substantially the same as that of the tooth 47. The direction of rotation C2 of the date indicator 40 is set by a date jumper 22 including a date jumper finger 22a and a spring jumper spring spring 22b. As can be seen in figs. 4 to 6, a change of position in the thickness of the date indicator 40 is set by a date indicator holding plate 21 attached to the main plate 6 to cover the date wheel 45.
The month 46 forward gear of the date indicator 40 rotates a month indicator 60 around the central axis line C in the direction C1 via a transmission wheel of month 50.
As can be seen in FIG. 2, the month transmission wheel 50 forms a wheel 51 which is freely rotated around the central axis J, and the teeth 52 of the wheel 51 are rotated by a tooth in the direction J1 by each of the teeth 46a and 46b when engaged with the teeth 46a and 46b of the month advancement tooth 46 of the date indicator 40. In this example, since the month advancement tooth 46 includes two teeth 46a and 46b, the 50 month transmission wheel is rotated by two teeth in direction J1 in January.
As can be seen in the sectional view like that of FIG. 4 and the plan view as FIG. 2, the month indicator or month indication wheel 60 includes a month indication wheel guide barrel 61 which is inserted into a cylindrical portion 16a1 of the wheel and the hour pinion 16a with a clearance and is attached to the date indicator holding plate 21, a month cam 64 which is rotatably inserted into the guide barrel 61 has a hub portion 62 and has a cam surface 63 formed at the outer circumference, a wheel of month 66 which is inserted at the month cam 64 and includes twenty-four teeth 65, and a month indication plate portion 67 which is attached to the month wheel 66.
The cam surface 63 of the month cam 64 has a small arc 63a shaped cam surface corresponding to a month long where a month has 31 days, and an arc shaped cam surface. large diameter 63b corresponding to a short month where a month has 30 days or less.
The month wheel 66, which meshes with the transmission wheel of month 50, is rotated by two teeth each time the transmission wheel of month 50 is rotated by two teeth per month, and is rotated once. per year in the direction C1 around the central axis line C.
On the surface 67a on the dial side of the month indication plate portion 67, the LM characters indicating the months from January to December are displayed at the same interval two by two (24 in total as a set) . The month indication plate portion 67, as can be seen in FIG. 4 or similar, has a circumferential outer edge that is slightly smaller than the inner circumferential edge of the date indication wheel 41 of the date indicator 40. Therefore, the LM characters indicating the months provided on the surface 67a on one side of the dial of the month indication plate portion 67 indicates the months in the predetermined regions 13a and 13b within the date and month indication window 13 of the dial 12 at a position which is slightly closer to the central axis C than the LD characters indicating the dates provided on the surfaces 41a on the side of the dial of the date indication wheel 41.
The direction of rotation C1 of the month indicator 60 is set by a jumper of month 24 including a portion of the jumper finger of month 24a and a jumper spring of month 24b. As can be seen in figs. 4 to 6, a change of position in the thickness direction of the month indicator 60 is set by a month indicator hold plate 23 attached to the month indication of the guide barrel 61 to adjust the displacement. in the direction of the side of the dial of the month cam 64.
The automatic calendar mechanism 1 includes an actuating flip-flop 70 and a control flip-flop structure 4 along the month cam 64.
As shown in FIG. 2, the actuating lever 70 has an arm 72 which is movable in the directions E1 and E2 around the central axis line E of the handle 71, and a spring 74 which biases a tooth-shaped engagement portion 73 at the front end and the arm portion 72 in the direction E2. The arm 72 is formed of a main body 75 which is substantially straight, and a connecting portion 76 which extends from the front end of the main body 75 to the base end of the tooth-shaped engagement portion. 73 and a shape of C. The handle 71, as shown in FIG. 4, is formed of a pin inserted into the date indication wheel 41, and the pin 71 is movably inserted into a hole 77 of the main body 75 of the arm 72 at a small diameter portion 71a. The actuating lever 70, as can be seen in the sectional view of FIG. 4, is located substantially in the same position as the teeth 47 of the date wheel 45 of the date indicator 40 or the date finger 32 of the date indicator drive wheel 30, seen from the direction of the thickness of the timepiece 2, and is located between the date indicator holding plate 21 and a curved portion 92 of a second control lever 90, described later, of the control rocker structure 4 .
The spring 74 comes into contact with the front end portion 74a and the outer circumferential portion of the thick, small diameter cylindrical portion 42c of the date indicator 40, and is normally set to a non-contact position. engagement or in a retracted position P1 (for example in Fig. 2), as a regular daily indexing position where the arm 72 and the tooth-shaped engagement portion 73 of the actuating lever 70 are solicited in the E2 direction. The tooth-shaped engagement portion 73 is located in a position that exactly faces the notch 48 of the date indicator 40, and the tooth-shaped engagement portion 73 is set to a position of engagement or in a protruding position P2 as a pre-advance authorization position, for example, as shown in part (a) of FIG. 8 or similar, when the actuating lever 70 is movably biased in the direction E1.
The control flip-flop structure 4 is formed by the first control flip-flop 80 and the second control flip-flop 90.
The first control flip-flop 80 includes a curved portion 81, and a straight portion 82 that extends from the intermediate portion 81a of the curved portion 81 substantially outwardly in the diameter direction. The bent portion 81 is formed of a base 83 which is located further on the side of the base end relative to the intermediate portion 81a, and a front end 84 which is located further toward the front end relative to the portion. intermediate 81a. A cam follower 85 which extends substantially inward in the direction of a diameter is formed at the base 83. The straight portion 82 is movable in the directions A1 and A2 through a pin 86 when the central axis line A is rotated. The pin 86 is attached to the date indicator holding plate 21 at a large diameter portion as shown in FIG. 4. The first control flip-flop 80 has an engagement notch 87 which is engaged with the base of the second control flip-flop 90 at the front portion 84a of the front end 84 of the curved portion of the flip-flop. The first control lever 80, as can be seen in the sectional view of FIGS. 4 and 5, is located between the date indicator holding plate 21 and the month indicator wheel 66 of the month indicator 60 and substantially in the same position as the month cam 64, viewed from the thickness direction. of the timepiece 2.
The second control lever 90 has a rectilinear portion 91, a curved portion 92, and a spring 93, and is movable in the directions B1 and B2 about the central axis of rotation line B of an end 92a. of the bent portion 92. More specifically, the second control lever 90, as illustrated in FIG. 6, is rotatably inserted into the pin 94 attached to the main plate 6 with screws, in a hole 95 at one end 92a. The bent portion 92 of the second control flip-flop 90, as can be seen in the sectional views of FIGS. 4 to 6, is located slightly further rearward of the housing (i.e., the remote side of the dial 12) than the arm 72 of the operation rocker 70 in the notch for the provisioning operation. lever of the main plate 6, according to a view taken in the direction of thickness of the timepiece 2.
The rectilinear portion 91 is provided with a pin-shaped engagement portion 96 at one end 91a, and engages with the engagement notch 87 of the first control latch 80 at the pin-shaped engagement portion 96. The straight portion 91 is connected to an intermediate portion 92b of the bent portion 92 at another end 91b. The spring 93 is connected to a lateral edge 92c of the end 92a of the bent portion 92 at the base end 93a, and is locked at the wall 6b of the stop member such as the main plate 6 at the from the front end 93b, exerting in this manner a biasing force to the second control lever 90 in the direction B2. Therefore, the second control flip-flop 90 exerts a steering biasing force A1 on the first control flip-flop 80 through engagement of the pin-shaped engaging portion 96 and the engagement notch 87 of the first control flip-flop 80, and in this manner presses the cam follower 85 of the first control flip-flop 80 towards the cam surface 63 of the cam of the months 64.
The curved portion 92 of the second control flip-flop 90 further comprises a pin-shaped compression portion 97 at one end (front end) 92d. When the cam follower 85 of the first control flip-flop 80 is pushed by the short face of the month cam 63b of the cam surface 63 of the month cam 64, and the first control flip-flop 80 is rotated in the direction A2, the second control flip-flop 90 is rotated in the direction B1 through engagement of the engaging portions 87 and 96, so that the pin-shaped pressing portion 97 of the second control flip-flop 90 presses on the outer surface 78 of the main body 75 of the actuating lever 70, and in this manner the tooth-shaped engagement portion 73 at the front end is rotatably displaced from the retracted position P1 as a daily indexing position. steady at the protruding position P2 as a pre-advance clearance position in the direction E1.
Therefore, in a long month, since the cam follower 85 of the first control flip-flop 80 of the control flip-flop structure 4 comes into contact with the small-diameter arc shaped cam surface 63a of FIG. the month cam 64 according to the rotation of the month indicator 60, a long month position Q1 is selected at which the first control flip-flop 80 of the control flip-flop structure 4 is rotated in the direction A1. At this time, since the engagement notch 87 of the first control flip-flop 80 recedes, the straight portion 91 at which the pin-shaped engaging portion 96 of the second control flip-flop 90 is located and the curved portion 92 which is integrally formed with the latter is rotatably displaced in the direction B2 under the spring force of the spring 93. Therefore, as illustrated in FIG. 3, the pin-shaped compression portion 97 located at the front end of the bent portion 92 of the second control rocker 90 of the control rocker structure 4 is located outside the path of the actuating flip-flop 70 (the path through which the outer surface portion 78 of the operation flip-flop 70 attached to the date indicator 40 and located at the retracted position P1 as a regular daily indexing position passes when the date indicator 40 is rotated in the direction C2). More specifically, in the second control flip-flop 90, the pin-shaped compression portion 97 takes the position of a long month S1 which is located outside the trajectory of the actuating lever 70 (the trajectory at through which the outer surface portion 78 of the actuating lever 70 attached to the date indicator 40 and located at the retracted position P1 passes when the date indicator 40 is rotated in the direction C2), at least in an angular region where the date finger 32 is scanned. Therefore, in a long month, the control flip-flop structure 4 does not actuate or move actuating flip-flop 70 in practice.
On the other hand, since the cam follower 85 of the first control flip-flop 80 of the control flip-flop structure 4 contacts the cam-shaped large-diameter arc surface 63b of the cam By month 64 in a short month, a short month position Q2 is selected where the first control flip-flop 80 of the control flip-flop structure 4 is rotated in the direction A2. At this time, the engagement notch 87 of the first control flip-flop 80 presses the pin-shaped engaging portion 96 of the second control flip-flop 90 against a spring force of the spring 93, and in this manner the bent portion 91 at which the pin-shaped engaging portion 96 of the second control flip-flop 90 is located, and the bent portion 92 which is integrally formed therewith, are rotatably displaced in the direction B1. Therefore, the pin-shaped compression portion 97 located at the front end of the bent portion 92 of the second control flip-flop 90 of the control rocker structure 4 is located within the path of the actuating lever 70 (the path through which the outer surface 78 of the actuating lever 70 is fixed to the date indicator 40 and located in the retracted position P1 as a regular daily indexing position passes when the date indicator 40 rotates in the direction C2) as illustrated in FIG. 2 or similar. More specifically, in the second control flip-flop 90, the pin-shaped compression portion 97 takes the position of a short month S2 which is located within the trajectory of the actuating lever 70 (the trajectory to through which the outer surface portion 78 of the actuator latch 70 attached to the date indicator 40 and located in a retracted position P1 passes when the date indicator 40 rotates in the direction C2), in a region d angle where the date finger 32 is scanned. Therefore, in a short month, when the operation flip-flop 70 enters the scanning region of the date finger 32, the control flip-flop structure 4 operates and moves the actuating flip-flop 70.
In the following, an operation of the calendar mechanism 1 of the timepiece 2 with the automatic calendar mechanism 1 having the configuration described above will be described.
For example, in a month long of thirty-one days like May, as illustrated in FIG. 3, the first control flip-flop 80 of the control flip-flop structure 4 rotates in the direction A1 according to the application of the return force of the spring 93 of the second control flip-flop 90, and thus the position of the long month Q1 is selected at which the cam follower 85 contacts the small diameter cam surface 63a of the month cam 64 of the month indicator 60. In this way, the long month position S1 is selected, where the second control flip-flop 90 is rotated in the direction B2 through engaging engagement portions 87 and 96, and the pin-shaped compression portion 97 of the second control flip-flop 90 is located outside the path rotation of the actuator rocker 70 in practice. Therefore, regardless of the rotation of the date indicator 40, the operation flip-flop 70 takes the retracted position P1 as a regular daily indexing position which is biased in the direction E2 according to the application of the force. return of the spring 74 as illustrated in FIG. 3, and the tooth-shaped engagement portion 73 of the actuating lever 70 is not projected inward in the direction of a diameter of the notch 48 of the date indicator 40.
Therefore, regardless of the rotational position of the date indicator 40, when the date finger 32 rotates once a day, more specifically, a date is changed, the date wheel 45 is rotated intermittently by a tooth in the anticlockwise rotation C2 through the engagement with the teeth 47 closest to the date wheel 45. This operation is practically the same for thirty-one days (every day in May ).
In addition, if the end of the month is approaching, the month 46 forward gear of the date indicator 40 is engaged with the teeth 52 of the transmission wheel 50 months to rotate the transmission wheel of month 50 in the J1 direction, the month transmission wheel 50 in turn rotates the month wheel 66, and in this manner the one month indication of the month indication plate portion 67 progresses. In this example, at a portion where the date is changed from the 29th day to the 30th day, the forward month 46a of the forward side rotates the month indicator 60 by one tooth through the transmission wheel of month 50, and in this way a part where a month is changed (a part where we pass from the 31st day of a month to the 1st day of the following month), the month advancement tooth 46b the rear side rotates the month indicator 60 of a tooth through the transmission wheel of month 50, thus changing the month indication by the month indication plate portion 67 of the month indicator 60, for example, from May (May) to June (June).
On the other hand, for example, in a short month where the month has thirty days as April, as described above, for example, as illustrated in FIG. 2 or part (a) of FIG. 7, the first control flip-flop 80 of the control flip-flop structure 4 is rotated in the direction A2 relative to the restoring force of the spring 93 of the second control flip-flop 90, and the position of the short month Q2 is selected where the cam follower 85 contacts the large diameter cam surface 63b of the month cam 64 of the month indicator 60. In this manner, the position of the short month S2 is selected where the second control flip-flop 90 is rotated in the direction B1 through engaging engagement portions 87 and 96, and the pin-shaped compression portion 97 of the second control rocker 90 enters the range of the rotation path of the rocker d. actuation 70.
In a state where the first and second drive levers 80 and 90 constituting the control rocker structure 4 are located at the positions of the short month Q2 and S2, as the days pass, the finger of date 32 advances the teeth 47 of the date wheel 45 of the date indicator 40 of one tooth per day in a clockwise direction C2 every time the date indicator drive wheel 30 is turned once, and a date displayed in the date indication area 13b of the date and month indication window 13 of the dial 12 is increased one by one from the value "1" corresponding to the first date.
As shown in (a) of FIG. 7, around the end of the 29th day (in this example, for example, around 22:00 [10:00 pm]), the date finger 32 is engaged with tooth 47 closest to the date wheel 45.
Subsequently, with the passage of time, through the rotation of the date indicator drive wheel 30 according to the rotation of the wheel and pinion hours 16a, the date finger 32 rotates the date indicator 40 in the direction C2 as illustrated in part (b) of FIG. 7. In this way, the tooth 46a on the forward side of the month advance tooth 46 of the date indicator 40 reaches a state immediately preceding the engagement with the tooth 52 of the month transmission wheel 50, and the month indicator 60 also reaches a state immediately preceding that of being rotated in the direction C1. By the direction C2 the rotation of the date indicator 40, the front end of the finger 22a of the date jumper 22 reaches a vertex of the tooth 47, which leads to a state immediately preceding that of a date change in the part (b) of fig. 7. In addition, in part (b) of fig. 7, the outer surface 78 of the actuating lever 70 which is rotated in the direction C2 along the date indicator 40 reaches a state immediately preceding that of coming into contact with the compression portion in the form of pin 97 of the second control lever 90 which is located at the short month position S2 interfering with the actuating lever 70.
If the date jumper 22 jumps, the state shown in part (b) of FIG. 7 is moved to a state immediately after the indication is changed from April 30 as shown in part (a) of FIG. 8. At this time, since the forward month tooth 46a of the front side rotates the month indicator 60 of a tooth in the direction C1 through the month transmission wheel 50, the follower cam 85 is displaced in the circumferential direction along the cam surface 63b of large diameter of the month cam 64, but the radial position in the direction of the diameter of the cam follower 85 is not changed, and thus the first and second drive levers 80 and 90 remain at positions Q2 and S2 which are substantially the same as in the case of part (b) of FIG. 7.
On the other hand, since the jumper 22 allows the date wheel 45 to rotate by a half tooth in the direction C2, the tooth 47 of the date wheel 45 moves away from the date finger 32, and the tooth next 47 reaches a predetermined position close to the rear side of the date finger 32. This tooth 47 is a tooth 47a on the front side, having a notch 48 interposed.
In addition, in the state of April 30 (short month), since the outer surface 78 located at the periphery of the actuating lever 70 is compressed by a pin-shaped compression portion 97 of the second flip-flop 90 which has entered the directional rotation path C2 of the outer surface 78 according to the intermittent rotation in the counter-clockwise rotation C2 of the date indicator 40, the actuating lever 70 is rotated in the direction E1 against the restoring force of the spring 74, and the tooth-shaped engagement portion 73 at the front end of the actuating lever 70 is inserted into the notch 48 between the teeth 47a and 47b of the date wheel 45 of the date indicator 40. At this time, the tooth-shaped engagement portion 73 at the front end of the actuating lever 70 takes the projection position P2 to an authorization position A pre-advance which is located within the path of the date finger 32 which is wider than the typical teeth 47 constituting the date wheel 45 of the date indicator 40 and is projected inwards in the direction radius as shown in parts (a) and (b) of FIG. 8. In addition, as long as the projection position P2 of the tooth-shaped engagement portion 73 at the front end of the actuating lever 70 is located in the path of the date finger 32, and the portion toothed engagement member 73 at the front end of the actuating lever 70 may be engaged with the date finger 32, a projection extent of the tooth-shaped engagement portion 73 at the front end. of the actuating lever 70 may be equal to or slightly smaller than a projection area of the teeth 47 instead of being wider than the projection amount of the teeth 47 of the date wheel 45.
Subsequently, with the passage of time, the mobile hours 16a is rotated, the date indicator drive wheel 30 is turned accordingly, and, as shown in part (b) of the fig . 8, the date finger 32 is substantially rotated once and begins to mesh with the tooth-shaped engagement portion 73 of the actuating lever 70 which is projected into the notch 48. In this example, this operation is performed around 21:19. In other words, if the time reaches about 9:20 PM on April 30, a date advance operation begins in a time zone that is earlier than the normal start time date (for example, as described above). above, around 10:45 pm) but is substantially of the same magnitude. In other words, in this example, the date finger 32 is engaged with the tooth engagement portion 73 of the actuator latch 70 attached to the date indicator 40 and the advance thereof. way by turning the date indicator 40 in the direction C2.
Part (a) of FIG. 9 shows a state immediately before the directional rotation C2 of the date indicator 40 is progressing to a state where the date finger 32 is engaged with the tooth-shaped engagement portion 73 of the actuating lever 70 inserted in the notch 48 between the teeth 47a and 47b of the date wheel 45, and in this way the date jumper 22 jumps. Here, since the tooth-shaped engaging portion 73 of the actuating lever 70 is engaged with the date finger 32 further upstream than the tooth 47a which is advanced by the date finger 32 in a normal case, the progress of the date indicator 40 starts earlier than in a normal case to some extent (in this example, about an hour and a half), and the finger 22a of the date jumper 22 jumps relative to the tooth 47 located at the engagement position earlier than in the normal case. In addition, in this state, the rearward month advancement tooth 46b does not reach the tooth 52 of the month transmission wheel 50, and in this way the month advancement is not performed.
If the date jumper 22 jumps, a state immediately after it is a state like that illustrated by the portion (b) of FIG. 9. In other words, the first and second drive levers 80 and 90 constituting the control rocker structure 4 remain substantially in the same positions Q2 and S2, but the leading edge 47b1 of the tooth 47b immediately following (in the direction of the drive) the tooth-shaped engaging portion 73 of the actuating lever 70 in the date wheel 45 strikes the trailing edge 32b at the leading end of the date finger 32 in the direction of rotation C2 of the date indicator 40, thereby applying a force on the date finger 32 in the direction F. Further, the tooth 47b of the date wheel 45 starts an overtaking operation by passing the date finger 32 in the C2 direction while the date finger 32 retracts in the direction F.
At the moment immediately preceding the termination of the jumping operation of the date jumper 22, as shown in part (a) of FIG. 10, the front end of the front edge 47b1 of the tooth 47b of the rear side of the notch 48 of the date wheel 45 corresponds to the front end of the rear edge 32b of the date finger 32. During this time, the first and second drive levers 80 and 90 constituting the control flip-flop structure 4 are substantially held in the same positions Q2 and S2. On the other hand, since the pin-shaped compression portion 97 of the second control flip-flop 90 is engaged with the outer surface 78a which recoils inward in the diameter direction in the outer surface 78 of the flip-flop. actuating 70 in the direction of rotation C2 of the date indicator 40, the actuating lever 70 is turned in the direction E2, the tooth-shaped engagement portion 73 of this escapes from the notch 48 and returns to the withdrawal position P1 corresponding to that of regular daily indexing.
At the moment when the jumping operation of the date jumper 22 is finished, as illustrated in part (b) of FIG. 10, the tooth 47b on the front side of the notch 48 is set by the date jumper 22 in a position (day advance position) where it completely exceeds the date finger 32. At this time, the date finger 32 is located on the rear side of the tooth 47b of the date wheel 45 reaching the date advancement position, and thus the tooth 47b can be brought to index one notch through the direction of rotation H1 of the date indicator drive wheel 30. In addition, the first and second drive levers 80 and 90 constituting the control lever structure 4 are substantially maintained at the same positions Q2 and S2, and the operating lever 70 is also maintained in the retraction position P1 corresponding to a regular daily indexing position in which the tooth-shaped engagement portion 73 escapes from the notch 48.
According to the rotation of the hours mobile 16a over time, the date indicator drive wheel 30 is rotated in the direction H1, and as shown in part (a) of FIG. 11, the date finger 32 begins to advance the tooth 47b of the date wheel 45 located at the date advancement position. This time is 22:44 (10:44 pm) in this example. At this time, the month forward gear 46b is in a state immediately before that of meshing with the tooth 52 of the transmission wheel 50 months in the direction of rotation C2 of the indicator of date 40, and, thereafter, the month advancement progresses in the normal direction of date advancement. On the other hand, during this time, the first and second drive levers 80 and 90 constituting the control flip-flop structure 4 are substantially held in the same positions Q2 and S2, and the actuating flip-flop 70 is also maintained in the retracted position P1 as a regular daily indexing position in which the tooth-shaped engagement portion 73 escapes from the notch 48.
If the date advancement by the date finger 32 of the date indicator drive wheel 30, that is to say, the advancement of the tooth 47b of the date wheel 45 of the date indicator 40, progresses, and the date indicator 40 is rotated by a half-step of the date wheel 45, it leads to a state shown in part (a) of FIG. 11. At this time, the leading end of the finger 22a of the date jumper 22 is in a state of substantially coming into contact with the leading end or the top of the tooth 47 closest to the date wheel 45. .
In this state, the month advancement tooth 46b of the rear side of the date indicator 40 is engaged with the tooth 52 in the direction of rotation C2 of the date indicator 40, to rotate the wheel transmitting month 50 in the J1 direction, thereby turning the month indicator 60 in the direction C1. In this manner, when the cam follower 85 of the first control flip-flop 80 is displaced from the corner of the large-diameter arc shaped cam surface 63b of the month cam 64, it is rotated in the rotation A1 under operation of the spring 93, and reaches the state of long month or the position Q1 to come into contact with the small-arc arced cam surface 63a of the month cam 64, the second control flip-flop 90 is also rotated in the direction B2 accordingly and returns to the position of long month S1, and thus the pin-shaped compression portion 97 is completely deviated from the trajectory of the actuating lever 70. Therefore, in state shown in part (b) of fig. 11, the date indication by the date indicator 40 reaches an intermediate state between "31" and "1", and the month indication by the month indicator 60 also reaches half between "April" (AVR ) "And" May (MAY) ". In addition, the actuating lever 70 is held at the retracted position P1 as a regular daily indexing position where the tooth-shaped engagement portion 73 escapes from the notch 48.
If the finger 22a of the date jumper 22 completes the jump operation, falls between the following teeth 47 and 47, and sets the date wheel 45 indexed position, it arrives in the state shown in FIG. 12. In this state, according to the rotation direction C2 of the date indicator 40, the date indication is changed from the state indicating half between "31" and "1" to a state indicating completely "1". in the date indication area 13b of the date and month indication window 13 of the dial 12. On the other hand, by the rotation in the direction C2 of the month advancement tooth 46b in the direction of C2 rotation of the date indicator 40, the month transmission wheel 50 is also rotated in the direction J1 to rotate the month indicator 60 in the direction C1, in turn, the indication plate portion of month 67 of the month indicator 60 is also rotated in the direction C1, and the month indication is changed from the state indicating half between "April (AVR)" and "May (MAY)" to a state indicating Completely "May (MAY)" in the month 13a indication field of the date and month indication window 13 12. During this time, the first and second control flip-flops 80 and 90 constituting the control flip-flop structure 4 are substantially maintained at the same long month positions Q1 and S1, and the operation flip-flop 70 is also maintained in the retraction position P1 corresponding to the regular daily indexing position in which the tooth-shaped engagement portion 73 escapes from the notch 48. This leads to a state indicating completely the long month (in this example, a state indicating May 1st). Subsequently, as described with reference to FIG. 3, the date advancement in a long month is done repeatedly.
In addition, in a case where a long month passes to a short month, as shown in (a) and (b) of FIG. 13, the cam follower 85 of the first control flip-flop 80 of the control flip-flop structure 4 is moved from the small-diameter arc shaped cam surface 63a corresponding to a month long of the month cam 64 to a large-arc shaped cam surface 63b corresponding to a short month in the direction of rotation C1 of the month indicator 60 at the time of the change of month, in this manner the first control lever 80 is turned into the direction A2 against the spring force of the spring 93 to take the position of the short month Q2, and, moreover, the second control lever 90 is rotated in the direction B1 against the restoring force of the spring 93 to take the position of the short month S2. Therefore, the pin-shaped compression portion of the second control flip-flop 90 enters the directional rotation path C2 of the operation flip-flop 70, thereby making preparation for progress towards the end of the month. in a short month. Other configurations are the same as described with reference to FIG. 3.
In addition, the timepiece with a calendar mechanism 2 includes a pivot wheel 25 which can be pivoted between a date corrector position U1 and a month corrector position U2 in the directions V1 and V2, a corrector adjustment wheel of month 26, and a wheel transmission corrector 27, as a manual calendar corrector mechanism 5. In a first state of winding time setting rod where the crown 15 is pulled to remove the time setting stem 18, when the time setting stem 18 is rotated in one direction, the pivot wheel 25 is moved to a date corrector position U1 in the direction V1 by the corrector transmission wheel 27 for meshing with the date wheel 45, and the date indicator 40 is rotated in the direction C2 according to the rotation in a direction of the time setting stem 18, correcting in this way a dat e. On the other hand, in the second state of a wind-up time-setting rod, when the wind-up time-out pin 18 is rotated in the reverse direction, the pivot wheel 25 is moved into the month corrector position U2 in the direction V2 to mesh with the month wheel 66, and the month indicator 60 is rotated in the direction C1 according to the inverse rotation of the winding time setting stem 18, correcting in this way a month.
Figs. 14 to 18 show a timepiece having an automatic calendar mechanism 1A as a calendar mechanism according to another preferred embodiment for the present invention, i.e., a timepiece with a mechanism of calendar 2A. In the timepiece 2A with the calendar mechanism 1A shown in FIGS. 14 to 18, in comparison with the timepiece 2 with the calendar mechanism 1 shown in FIGS. 1 to 13, the same elements are indicated with the same reference signs, and in parallel different elements are indicated with corresponding reference signs with the capital letter A.
The automatic calendar mechanism 1A of the timepiece 2A, for example, as shown in FIGS. 14 and 15, includes a notch 48A on the back of the tooth 47c and a small, thick cylindrical portion 42cA in a position in the circumferential direction where a date wheel 40A of a date indicator 40A overlaps the tooth 47c to be advanced from the 31st date by a robust 32A date finger. In addition, the date finger 32A may have an arm that may be resiliently bent in the same manner as the date finger 32 of the automatic calendar mechanism 1 of the timepiece 2.
In addition, in the automatic calendar mechanism 1A of the timepiece 2A, as shown in FIG. 14, an actuating lever 70A includes the arm portion 72 attached to the date indicator 40A and a spring 74 such as a tooth-shaped engagement portion 73A can be rotated to a position in the circumferential direction where it is inserted in the notch 48A to which the tooth 47c is located. The tooth-shaped engagement portion 73A is formed to be sufficiently long so that its forward end 73A is projected inward in the diameter direction more than the front end portion of the tooth 47c when inserted. in the notch 48A.
In other configurations, the automatic calendar mechanism 1A of the timepiece 2A is configured in the same way as the automatic calendar mechanism 1 of the timepiece 2 in practice.
The automatic timing mechanism 1A of the timepiece with the calendar mechanism 2A according to the other preferred embodiment of the present invention having the configuration described above performs the following operation at the end of the month. a short month.
Part (a) of FIG. 16 shows a state corresponding to (a) of FIG. 7 concerning the automatic timing mechanism 1 of the timepiece with a calendar mechanism 2 according to the first embodiment, and shows a state immediately before the change of date begins, for example, from April 29 to April 30. In this state, the first and second control flip-flops 80 and 90 constituting the control flip-flop structure 4 are respectively located at the positions of the short month Q2 and S2, but the actuating flip-flop 70A is still located at the retracted position P1A corresponding to the regular daily indexing position.
Part (b) of FIG. 16 shows a state corresponding to part (b) of FIG. 7 concerning the automatic calendar mechanism 1, and shows a state where the date change, for example, from April 29 to April 30 is progressing. In this state as well, the first and second drive levers 80 and 90 constituting the control lever structure 4 are respectively located at the short month positions Q2 and S2, but the operation lever 70A is still located at the position of pension P1 corresponding to the regular daily indexing position.
In this state, since the second control flip-flop 90 of the control flip-flop structure 4 is set in the short month position S2, and the pin-shaped compression portion 97 enters the trajectory of the direction of rotation. C2 rotation of the actuating lever 70 in the direction B1, when the outer surface 78 of the actuating lever 70A reaches the pin-shaped pressing portion 97 by the rotation direction C2 of the date indicator 40A, the actuating lever 70A is compressed by the pin-shaped compression portion 97 in the direction E1, and in this manner the tooth-shaped engagement portion 73A of the operation lever 70A can be projected towards the inside in the diameter direction through the notch 48A.
Part (a) of FIG. 17 shows a state of the timing mechanism 1A of the timepiece 2A, as the date advancement from April 30 to the next day begins. At this time, the actuating lever 70A is pressed by the pin-shaped pressing portion 97 in the direction E1, and the tooth-shaped engagement portion 73A of the actuating lever 70A is inserted into the notch 48A and is set in the P2A position corresponding to the pre-advance clearance position where its front end 73Aa is more protruding than the tooth 47c located in an overlapping position and is projected inwards in the diameter direction. Therefore, the date finger 32A of the date indicator drive wheel 30A is engaged with the leading end portion 73Aa of the tooth-shaped engagement portion 73A which is projected substantially to a position of the tooth 47c located by a tooth further upstream than the tooth 47d which is located at an original position of advancement, and begins to advance in the direction C2. This state corresponds substantially to the state shown in part (b) of FIG. 8 on the timing mechanism 1 of the timepiece 2. However, the moment to start advancement is, for example, around 19:00 (7 pm) in this example, and is earlier than the case of (b) of FIG. 8 about 2.5 hours.
Subsequently, the direction of rotation C2 of the date indicator 40A or the date advancement is continued by the front end portion 73Aa of the tooth-shaped engagement portion 73A according to the rotation of the date indicator drive wheel 30A due to the rotation of the wheel and the hour gear 16a, which leads to the state immediately before that where the date jumper 22 jumps as shown in part (b) of fig. 17. This is an exactly intermediate state of the one-day date advancement ("30th date" to "31st date" date advancement) of the two-day date advancement in transition to the date 1st date of a long month (in this example, May) at the 30th day which is a end date of the short month (in this example, April), and corresponds substantially to the state shown on part (a) of the fig. 9 concerning the timing mechanism 1 of the timepiece 2.
Then, the date jumper 22 jumps and falls between the adjacent teeth 47 and 47, and in this way a setting operation is performed. At this time, the date wheel 45A of the date indicator 40A is rotated substantially by a half step in the direction C2, which leads to the state shown in part (a) of FIG. 18 in which "31" is moved into the date indication area 13b of the date and month indication window 13. This state corresponds substantially to the state shown in (b) of FIG. 10 regarding timing mechanism 1 of timepiece 2 (however, a position of the date indicator drive wheel 40A is slightly different from the position of the date indicator drive wheel 40 of FIG. part (b) of Fig. 10 as described above in relation to part (a) of Fig. 17).
In this state, since the removed portion (notched) of the outer portion 78a of the outer surface 78 of the actuator latch 70A contacts the pin-shaped compression portion 97 of the second control latch 90 under the action of the spring 74, the actuating lever 70A is rotated and rotated in the opposite direction in the direction E2 of the position P2A in a pre-advance authorization position where the tooth-shaped engagement portion 73A is projected through the notch 48A, to the position P1A corresponding to a regular daily indexing position where it is pulled from the front side of the notch 48A. On the other hand, the date wheel 45A is rotated half a step in the direction C2, and in this way the tooth 47c at which the cut 48A is located precedes the date finger 32A of the wheel. 30A date indicator drive and is installed in a position to be advanced next.
Subsequently, depending on the rotation of the date indicator drive wheel 30A due to the rotation of the hours mobile 16a, as shown in part (b) of FIG. 18, the date finger 32A is engaged with the tooth 47c located at the end of date advancement position to start advancing the tooth 47c, and the month advancement tooth 46b of the back side of the date indicator 40A turns the 60-month indicator by the 50-month transmission wheel, thereby starting the month advancement. In this way, the date indication in the date indication area 13b of the date and month indication window 13 is changed from the "31st" date to the "1st" date, and at the same time the month indication in the month 13a indication field is changed from "April (AVR)" to "May (MAY)". This corresponds substantially to the state shown in part (a) of FIG. 11 concerning the timing mechanism 1 of the timepiece 2. In the short month, an operation is therefore the same as in the case of the calendar mechanism 1 of the timepiece 2.
In addition, in a long month, since the cam follower 85 comes into contact with the small-arc shaped cam surface 63a of the month cam 64, the long month positions Q1 and S1 are selected at which the first and second control flip-flops 80 and 90 of the control flip-flop structure 4 are respectively rotated in the directions A1 and B2, and the pin-shaped compression portion 97 is completely deviated from the directional rotation path C2 of the actuating lever 70A. Therefore, since the actuating lever 70A is normally also rotated in the direction E2 and takes the position P1A corresponding to the regular daily indexing position where the tooth-shaped engagement portion 73A completely backs out of the notch 48A , the date finger 32A of the date indicator drive wheel 30A sequentially advances thirty-one teeth 47 of the date wheel 45A, similarly to the case of the timing mechanism 1 of the timepiece 2. A transition operation from a long month to a short month is essentially the same as in the case of the calendar mechanism 1 of the timepiece 2.
[0088] FIG. 19 to 23 show a timepiece having an automatic calendar mechanism 1B as a calendar mechanism according to another preferred embodiment of the present invention, i.e., a timepiece with a timing mechanism. calendar 2B. In the timepiece 2B with the calendar mechanism 1B shown in FIGS. 19 to 23, in comparison with the timepiece 2 with a calendar mechanism 1 shown in FIGS. 1 to 13 or the timepiece 2A with the calendar mechanism 1A shown in FIGS. 14 to 18, the same elements are given by the same reference signs, and in parallel different elements are given by the corresponding reference signs with the capital letter B (however, in case of presence of A in the end, A is excluded ).
In the automatic calendar mechanism 1B of the timepiece 2B, for example, as shown in FIG. 19, a tooth at a portion where a date wheel 45B of a date indicator 40B is to be advanced from the 31st date by the rugged date finger 32A is removed, and a notch 48B is formed at a portion ( circumferential direction region) in the same way as in the case of the automatic calendar mechanism 1A of the timepiece 2A shown in FIG. 14 or similar. In this case also, the date finger 32A may have an arm that can be bent elastically in the same way as the date finger 32 of the automatic calendar mechanism 1 of the timepiece 2.
In addition, in the automatic calendar mechanism 1B of the timepiece 2B, as shown in FIGS. 20 or 21, in a case where the operation rocker 70B is pressed by the pin-shaped pressing portion 97 of the second control rocker 90 of the control rocker structure 4 to the outer surface 78 and thus takes a P2B position as a pre-advance clearance position where it is rotated in the direction E1, the tooth-shaped engagement portion 73B is provided to be projected inward in the diameter direction more than the typical teeth 47 of the date wheel 45B in the same way as the case of the actuating lever 70A.
In the actuating lever 70B of the automatic calendar mechanism 1B, in a case where the pin-shaped pressing portion 97 of the second control lever 90 of the control rocker structure 4 moves back outwardly. in the diameter direction in a region which does not contact the outer surface portion 78, unlike the operation flip-flop 70A of the automatic calendar mechanism 1A, as shown in Figs. 22 or 23, the tooth-shaped engagement portion 73B or the spring 74B is formed such that the tooth-shaped engagement portion 73B assumes a state in which it projects inwards in the diameter direction notch 48B at the top of the diameter steering position which is exactly the same as the typical teeth 47 of the date wheel 45B.
In other configurations, the automatic calendar mechanism 1B of the timepiece 2B is formed in the same way as the automatic calendar mechanism 1A of the timepiece 2A or the automatic calendar mechanism 1 of the timepiece 2A. the timepiece 2 in practice.
The automatic timing mechanism 1B of the timepiece with the calendar mechanism 2B according to this other preferred embodiment of the present invention having the configuration described above performs the following operation at the end of the month of short month.
FIG. 19 corresponds to part (a) of FIG. 7 concerning the automatic calendar mechanism 1 of the timepiece with a calendar mechanism 2, shows a state corresponding to the state shown in part (a) of FIG. 16 regarding the automatic timing mechanism 1A of the timepiece with a calendar mechanism 2A, and shows a state immediately prior to that of the beginning of the change of date, for example, from April 29 to April 30. In this state, the first and second control flip-flops 80 and 90 constituting the control flip-flop structure 4 are respectively located at the short-month positions Q2 and S2, but the actuating flip-flop 70A is still located at the retracted position P1B corresponding to the regular daily indexing position.
In this state, the date advancement is made to reach the "30th" date. At this time, the outer surface 78 of the actuating lever 70B presses the pin-shaped pressing portion 97 of the second control lever 90 located at the position S2, in this way the actuating lever 70B is driven into position. rotation in the direction E1 to be set to the position P2B corresponding to the pre-advance authorization position, and thus the tooth-shaped engagement portion 73B of the operation lever 70B is projected inwardly significantly in the diameter direction through the notch 48B of the date wheel 45B of the date indicator 40B.
FIG. 20 shows a state where the date finger 32A contacts the front end portion 73Ba of the tooth-shaped engagement portion 73B which is significantly protruded through the actuating lever 70B by the rotation of the date indicator drive wheel 30A according to the rotation of the hours mobile 16a in the state of the 30th date and begins to perform additional indexing of the date. This state corresponds to the state shown in part (a) of FIG. 17 concerning the automatic timing mechanism 1A of the timepiece with a calendar mechanism 2A (therefore, substantially the state shown in part (b) of Fig. 8 concerning the automatic calendar mechanism 1 of the workpiece timepiece with calendar mechanism 2). In other words, the date finger 32A of the date indicator drive wheel 30A is engaged with the leading end 73Ba of the tooth-shaped engagement portion 73B which is projected significantly into a position in the circumferential direction located a tooth upstream relative to the tooth 47d which is located in an original position of advance, and begins to advance in the direction C2. This start of advancement time is, for example, around 19:00 (7 pm) in this example, and is earlier than the case illustrated in part (b) of FIG. 8 about 2.5 hours in the same as the case of the automatic timing mechanism 1A of the timepiece with a calendar mechanism 2A.
Subsequently, the rotation in the direction C2 of the date indicator 40A or the date advancement is continued by the front end 73Ba of the tooth-shaped engagement portion 73B according to the rotation of the 30A date indicator drive wheel due to the rotation of the wheel and hour gear 16a, which leads to a state shown in FIG. 21 (immediately before the date jumper 22 jumps) in the same way as shown in part (b) of FIG. 17 concerning the automatic timing mechanism 1A of the timepiece with the calendar mechanism 2A. This is a state exactly intermediate of the date advancement corresponding to a day (advancing from the date of the "30th date" to the "31st date") of the date advancement corresponding to two days effected in the transition of the 1st date of the long month (in this example, May) to the 30th date which is an end date of the short month (in this example, April), and substantially corresponds to the state shown in (a) of FIG. 9 concerning the timing mechanism 1 of the timepiece 2.
Then, the date jumper 22 jumps and falls between the adjacent teeth 47 and 47, in this way a setting operation is performed, and, the date wheel 40B of the date indicator 40B is substantially rotated. a half step in the C2 direction, which leads the "31" to be moved into the date indication area 13b of the date and month indication window 13. In this state, since the outer surface portion removed (notched) 78a of the outer surface 78 of the actuating lever 70B faces the pin-shaped pressing portion 97 of the second control lever 90 and therefore does not come into contact with the pin-shaped pressing portion 97, under the action of the spring 74, the front end portion 73Ba of the tooth-shaped engagement portion 73B of the actuating lever 70B is located substantially in the same projecting position radially in the direction of rotation. diameter that the typical teeth 47 of the date wheel 45B. On the other hand, the date wheel 45B is rotated half a step in the direction C2, and in this way the tooth-shaped engagement portion 73B which has substantially the same radial projection state as the teeth typical 47 at the notch 48B precedes the date finger 32A of the date indicator drive wheel 30A, and is installed in a position to be advanced thereafter.
Then, depending on the rotation of the date indicator drive wheel 30A caused by the rotation of the hours mobile 16a, as illustrated in FIG. 22, the date finger 32A is engaged with the tooth 73B located at the date advancement position to start advancing the tooth 73B, and the month advancement tooth 46b on the back side of the The date 40B rotates the month indicator 60 through the transmission wheel by 50 months, thereby starting the indexing of the month, i.e. the changeover to the next month. In this way, the date indication in the Date Indication Area 13b of the date and month window 13 has been changed from the "31st" date to the "1st" date, and at the same time, the indication of month in month indication zone 13a is changed from "April (AVR)"

权利要求:
Claims (10)
[1]
to "May (May)". This corresponds substantially to the state shown in part (b) of FIG. 18 concerning the calendar mechanism 1A of the timepiece 2A or the state shown in part (a) of FIG. 11 concerning the timing mechanism 1 of the timepiece 2. In the short month, an operation of this fact is the same as in the case of the calendar mechanism 1A of the timepiece 2A or in the case of the mechanism In addition, in a long month, since the cam follower 85 comes into contact with the small-arc shaped cam surface 63a of the cam of months. 64, the long month positions Q1 and S1 are selected at which the first and second control flip-flops 80 and 90 of the control flip-flop structure 4 are respectively rotated in the directions A1 and B2, and the pin-shaped compression portion 97 is completely deviated from the trajectory of the direction of rotation C2 of the actuating lever 70B. Therefore, since the operation flip-flop 70B is normally also rotated in the direction E2 and takes the position P1B corresponding to the regular daily indexation position where the tooth-shaped engagement portion 73B is flush at the level of the notch 48B in the same proportions as the typical teeth 47, the date finger 32A of the date indicator drive wheel 30A advances the tooth engagement portion 73B in the same manner as thirty teeth 47 of the date wheel 45B, which is thus the same as in the case of the calendar mechanism 1A of the timepiece 2Aor the calendar mechanism 1 of the timepiece 2. A transition operation of a month long to a short month is also essentially the same as in the case of the timing mechanism 1A of the timepiece 2A or the timing mechanism 1 of the timepiece 2. Claims
A calendar mechanism (1) comprising: a date indicator (40, 40A, 40B) which includes a date wheel (45, 45A, 45B) having a notch (48, 48A, 48B) extending into a radial direction of a diameter thereof; an actuating lever (70, 70A, 70B) which is fixed to the date indicator (40, 40A, 40B) in a pivotal manner with respect to the date wheel (45, 45A, 45B), and is provided, at one of its ends, a tooth-shaped engagement portion (73, 73A, 73B); said actuator flip-flop (70, 70A, 70B) insertable into the notch formed in the date indicator (40, 40A, 40B), and removed therefrom as a result of a pivoting movement, and which can be rotated between a pre-advance authorization position (P2, P2A, P2B) where the tooth-shaped engagement portion (73, 73A, 73B) is inserted into the notch, and is capable of cooperating with a date finger (32, 32A), thereby making retrieval indexing for the date indicator possible, and a regular daily indexing position (P1, P1A, P1B) where the tooth-shaped engagement portion (73,73A, 73B) withdraws from the notch relative to the pre-advance authorization position (P2, P2A, P2B), so that the date finger (32, 32A) can perform regular daily indexing, the date finger (32, 32A) cooperating with the tooth-shaped engagement portion (73, 73A, 73B) prior to the moment of engagement regular daily indexing and causing the date indicator to rotate one more day prior to the regular daily indexing time when the actuating lever (70, 70A, 70B) is in the pre-progress authorization position (P2, P2A, P2B); a cam of the months (64) which is rotatable according to the rotation of a current month indication wheel (60), and which has a cam surface indicating the long months and the short months ; and a control flip-flop structure (4) which includes a cam follower engaged with the cam of the months (64), and which is arranged to be driven in response to rotation of the cam of the months (64) to enable the actuating flip-flop (70, 70A, 70B) to be rotated between the regular daily indexing position (P1, P1A, P1B) and the pre-advance authorization position (P2, P2A, P2B), the flip-flop structure control unit (4) being arranged to allow the actuating lever (70, 70A, 70B) to be moved into the pre-advance authorization position (P2, P2A, P2B) when one month is passed short to a month long.
[2]
The calendar mechanism (1) according to claim 1, wherein the date wheel (45) includes the notch (48) between adjacent teeth, wherein the actuating lever (70) is pivotable between the pre-advance authorization position (P2) where the tooth-shaped engagement portion (73) is inserted into the notch (48), and the regular daily indexing position (P1) where the portion of tooth-shaped engagement (73) is arranged to withdraw from the notch and away from the date finger, so that regular daily indexing is possible, and in which, when going from a month to one month long, the actuating lever (70) is arranged to assume the pre-advance authorization position (P2) where the tooth-shaped engagement portion (73) is inserted into the notch (48). ), and the date finger cooperates with the tooth-shaped engagement portion (73) before the time of regular daily indexing and causes the date indicator (40) to rotate one more day before the regular daily indexing time.
[3]
The calendar mechanism according to claim 2, wherein, when the actuating lever (70) assumes the pre-advance authorization position (P2), the tooth-shaped engaging portion (73) is arranged to make protruding radially inwardly of a diameter of the date wheel (45), flush with the same level as the other teeth of the date wheel (45), and when the actuating lever (70) takes the regular indexing position (P1), the tooth-shaped engagement portion (73) is arranged to withdraw outwardly of the cut in the radial direction along a diameter of the wheel of date (45) to be located more outwardly than the other teeth of the date wheel (45).
[4]
The calendar mechanism (1) according to claim 1, wherein the date wheel (45A) includes the groove-like notch (48A) which extends radially along a tooth and is superimposed on that tooth. at the level of the circumference of the date wheel (45A), and wherein, when one goes from a short month to a long month, the tooth-shaped engagement portion (73A) of the latch of actuation (70A) is arranged to be inserted into the groove-like slot, so that the date indicator (40A) is rotated one more day.
[5]
The calendar mechanism (1) according to claim 4, wherein, when the operation rocker (70A) assumes the pre-advance authorization position, the tooth-shaped engagement portion (73A) is arranged to make protruding further inwardly in the radial direction of a diameter of the date wheel (45A) than the other teeth of the date wheel (45A), and when the operating rocker (70A) takes the position of with regular daily indexing, the tooth-shaped engagement portion (73A) is arranged to retract outwardly from the cut in the radial direction of a diameter of the date wheel (45A) to be located further outward than the other teeth of the date wheel (45A) in the radial direction of the diameter thereof.
[6]
6. calendar mechanism (1) according to claim 1, wherein the date wheel (45B) comprises a toothing disposed on thirty-one and unevenly meshing sectors, one of the teeth having been omitted on one of these sectors of meshing to form the notch (48B), and wherein, when a month is changed from the short month to the long month, the tooth engagement portion (73B) of the actuating lever (70B) is arranged to be inserted into the groove-like cut (48B), and to cause the date indicator (40B) to rotate an additional day.
[7]
7. Calendar mechanism (1) according to claim 6, wherein, when the actuating lever (70B) is in the pre-advance authorization position, the tooth-shaped engagement portion (73B) is arranged to make projecting further inwardly than the other teeth of the date wheel (45B) in the radial direction of a diameter thereof, and when the actuating lever (70B) assumes the regular daily indexing position, the tooth-shaped engagement portion (73B) is arranged to withdraw outwardly from the notch (48B) in the radial direction of the diameter of the date wheel (45B) relative to the authorization position but still projecting inwardly in the same proportion as the other teeth of the date wheel (45B) in the radial direction of a diameter thereof.
[8]
8. Calendar mechanism (1) according to one of claims 1 to 7, wherein the control flip-flop structure (4) includes a first control flip-flop (80) which is arranged to be driven by the month cam ( 64), and a second control flip-flop (90) which is arranged to be driven by the rotation of the first control flip-flop, and to control the pivoting of the actuating flip-flop (70, 70A, 70B).
[9]
9. calendar mechanism (1) according to one of claims 1 to 8, wherein the actuating lever (70, 70A, 70B) is configured to take the pre-advance authorization position at the end of a month in a pivoting position which is the one that takes the actuating lever (70,70A, 70B) during each short month, so that the actuating lever (70, 70A, 70B) takes the position of pre-approval authorization at the end of each short month, and that the tooth-shaped engagement portion (73,73A, 73B) of the actuating lever (70,70A, 70B) is inserted into the notch (48, 48A, 48B).
[10]
Timepiece with calendar mechanism (1) comprising the calendar mechanism according to one of claims 1 to 9.

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同族专利:

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公开号 | 公开日

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CN102819213B|2016-06-15|

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CH705086A2|2012-12-14|

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US8861313B2|2014-10-14|

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JP5736242B2|2015-06-17|

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US20120314544A1|2012-12-13|

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JP2012255752A|2012-12-27|

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CN102819213A|2012-12-12|

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法律状态:
2019-01-31| PL| Patent ceased|

优先权:

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申请号 | 申请日 | 专利标题

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JP2011130168A|JP5736242B2|2011-06-10|2011-06-10|Calendar mechanism and watch having the same|

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