• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The timepiece comprises a watch movement, a calendar mechanism (221) and sunrise and sunset indication means (215; 209) taking into account seasonal variations. The calendar mechanism (221) includes a date display (223) and a month display (225). The means for indicating the sunrise and sunset (209) further comprise an annual cam (211) having a profile representative of the inclination of the sun relative to the equatorial plane and arranged to be rotated through the mobile calendar by a third kinematic chain (218).
    公开号:CH713331A2
    申请号:CH01241/17
    申请日:2017-10-11
    公开日:2018-06-29
    发明作者:Gilomen Beat；Léchot Dominique
    申请人:Swatch Group Res & Dev Ltd；
    IPC主号:
    专利说明:

    Description
    FIELD OF THE INVENTION
    The present invention relates to a timepiece comprising a watch movement and means for indicating the sunrise and sunset taking into account seasonal variations, said means comprising a sphere reproducing the globe, a support, and a a circle mounted on the support and arranged concentrically with the sphere, the circle being arranged to indicate the position of the terrestrial terminator, and the circle and the sphere being arranged to be able to rotate relative to each other at the rate of a 24 hours around a first axis corresponding to the polar axis of the terrestrial globe, and to be able to pivot relative to each other along a second axis perpendicularly intersecting the first axis in the center of the sphere, the circle being pivotally mounted on the support around the second axis, the means for indicating the sunrise and sunset also comprising an annual cam having a representative profile. if the relative inclination of the Sun with respect to the equatorial plane and arranged to be rotated by the movement at a rate of one revolution per year, a cam follower arranged to cooperate with the cam, and a kinematic chain arranged to connect the cam follower to the circle so that the plane subtended by the circle makes with the first axis an angle equal to the relative angle of inclination of the Sun relative to the equatorial plane.
    PRIOR ART
    [0002] The duration of the day is the time included, each day, between the moment when the upper limb of the Sun appears to the east above the horizon, at sunrise, until its disappearance at the west below the horizon, at sunset. Whatever the time, there is always half of the surface of the globe which is illuminated by the Sun, and another half which is in the shadow. The term terrestrial terminator is the line of demarcation between the part of the Earth which is illuminated and that which is in the shadow. Geometrically speaking, the terrestrial terminator is a large circle that surrounds the globe. This large circle extends in a plane perpendicular to the plane of the earth's orbit around the sun (called the plane of the ecliptic). We can still note that the center of the Earth is on the line of intersection between these two planes.
    In general, the duration of the day varies throughout the year and also depends on the latitude. This variation is caused by the inclination of the axis of rotation of the Earth on itself with respect to the plane of the ecliptic. This inclination corresponds by definition to the latitude of the tropics which is ± 23 ° 27 '. As is well known, the duration of the day is shortest during the December solstice in the northern hemisphere, and June in the southern hemisphere. At the equinoxes, the duration of the day is equal to that of the night on the whole Earth.
    Already known timepieces arranged to indicate the current position of the limit between day and night and which correspond to the definition given in the preamble above. In particular, these are described in patent documents EP 2,911,013, EP 2,977,832 and EP 3,007,012 in the name of the applicant. The use and design of these timepieces, however, present a number of difficulties.
    In particular, the circle and the terrestrial globe are arranged to be driven by the movement so as to rotate relative to each other, at the rate of one turn per 24 hours, so as to provide an indication of the current position of the terrestrial terminator on the surface of the globe. In this respect, it will be understood that, as the hour wheel of a timepiece normally performs one revolution in 12 hours, it can advantageously serve as a driving element for this rotation. It suffices for him to associate for example a gear reduction gear having a ratio equal to Va. However, a problem with such a configuration is that, when one acts on the needles of the timepiece to switch from summer time to winter time for example, the indication of the current position the terrestrial terminator on the globe moves without it corresponding to a real movement of the Sun in the sky.
    BRIEF SUMMARY OF THE INVENTION
    An object of the present invention is to overcome the aforementioned drawbacks of the prior art. The invention achieves this goal by providing a watch movement according to the appended claim 1.
    According to the invention, the watch movement comprises a time shift mechanism operable manually and arranged to rotate the mobile hours, step by step, regardless of the clockwork. Those skilled in the art will understand that one advantage of such a correction mechanism is that it makes it possible, in particular, to change the time zone or to switch between summer time and winter time, without the fact that indication of minutes and indication of seconds by the timepiece are affected.
    According to the invention, the watch movement also comprises, firstly, a second kinematic chain which connects the mobile hours to the circle or the sphere, so as to cause the circle or the sphere so that that one rotates relative to the other, at the rate of one turn per 24 hours, and on the other hand comprises a disengagement mechanism arranged to disengage the second kinematic chain when the time shift mechanism and put to rotate the mobile hours to change from summer time to winter time, or vice versa. An advantage of such an arrangement is that the rotation of the circle or sphere, relative to each other at the rate of one revolution per 24 hours, is not affected by a possible summer time correction. winter hour.
    According to the invention still, the timepiece comprises a calendar mechanism comprising means for displaying the calendar arranged to be driven via the hours mobile, and a display of the month arranged to be driven by the means to display the date. In addition, the annual cam is arranged to be driven via the means for displaying the date. An advantage of this construction is that it allows, after an indefinite stoppage time of the timepiece, to automatically reset the annual cam to the exact position without error, simply by the date of the calendar.
    According to the invention, the means for displaying the date are driven by the hours mobile. Under these conditions, when the wearer of the timepiece rotates the mobile hours, step by step, forward or backward, using the time shift mechanism, the correction of the time causes automatically correct the calendar mechanism.
    According to an advantageous variant of the invention, the watch movement comprises a first hour wheel meshing with the timer, and said timer hour wheel, and a second hour wheel, said gun wheel, which is part mobile hours. In addition, the time shift mechanism comprises a coupling and indexing device which is disengageable and which is arranged to alternately disengage and resolidarize the first and the second wheel rotating hours.
    BRIEF DESCRIPTION OF THE FIGURES
    Other features and advantages of the present invention will appear on reading the description which follows, given solely by way of non-limiting example, and with reference to the accompanying drawings in which: FIG. 1 is a block diagram illustrating briefly the kinematic links between different mechanisms of a timepiece according to a first particular embodiment of the invention; fig. 2 is a block diagram illustrating briefly the kinematic connections between different mechanisms of a timepiece according to a second particular embodiment of the invention; figs. 3A and 3B are respectively a section and a view of an exemplary mechanism, known as such, which comprises a first and a second hour wheel and a disengageable coupling device arranged to rotate and index, or alternatively to disengage, the two wheels of the hours.
    DETAILED DESCRIPTION OF EMBODIMENTS
    FIG. 1 is a block diagram illustrating the kinematic links associating different mechanisms of a timepiece according to a first exemplary embodiment of the invention. This extremely summary block diagram represents the transmission paths of the driving force provided by the movement to the different mechanisms using double thickness arrows, and represents the kinematic links which are arranged to transmit the manually entered commands by a user to using smaller arrows.
    In the block diagram of FIG. 1, the arrows are kinematic links that connect together symbols that represent different mechanisms of the timepiece. The mechanisms represented by the symbols are a drive mechanism 103 associating a driving member, a regulating member and an escapement, a minute moving member (referenced 105) which is integral with a minute display member and which is arranged to to be driven at the rate of one revolution per hour by the drive mechanism, a motive of the hours 107 integral in rotation with a display member hours, a timer wheel 106 connecting the mobile minutes to the hours of so that the latter is driven at the rate of one turn every 12 hours, a time shift mechanism (referenced 101) interposed between the timer train 106 and the mobile hours 107. In the illustrated example , the mobile hours is arranged to accomplish a complete revolution every 12 hours. However, it will be understood that, according to the invention, the mobile hours could alternatively be arranged to rotate at the rate of one turn every 24 hours.
    Referring again to FIG. 1, it can be seen that the illustrated timepiece further comprises a calendar mechanism 121 which notably comprises means for displaying the date 123 arranged to be driven via the hours mobile 107, and a month display 125 arranged to be driven by the means for displaying the date via monthly training means (referenced 127 in Fig. 1). In accordance with the first embodiment that is the subject of the present description, the means for displaying the date 123 comprise a date wheel (not shown), and the monthly training means 127 are arranged to increment the display of the month 125 each time the date wheel moves from the position corresponding to the last day of the month to that corresponding to the first day of the following month. The calendar mechanism 121 of the present description is preferably a perpetual calendar or annual calendar mechanism. Recall that, as the skilled person knows, a perpetual calendar calendar mechanism and a mechanism that automatically takes into account the different lengths of months as well as leap years, and that unlike the perpetual calendar, the annual calendar does not take into account the month of February, considered a month to 30 days, or leap years. The annual calendar must therefore be corrected manually once a year, at the end of February. The perpetual or annual calendar calendar mechanisms being well known to those skilled in the art, the operation of the calendar mechanism 121 will not be described in detail. It should also be noted that the invention is not limited to timepieces comprising a perpetual or annual calendar calendar mechanism. The calendar mechanism could also be of another type.
    According to the invention, the timepiece illustrated further comprises means for indicating the sunrise and sunset taking into account seasonal variations. These means comprise a sphere reproducing the terrestrial globe, a support, and a circle mounted on the support concentrically to the sphere and arranged to indicate the position of the terrestrial terminator. The circle and the sphere are arranged to be driven so as to rotate relative to each other, at the rate of one revolution per 24 hours, around a first axis corresponding to the polar axis of the terrestrial globe. In addition, the circle is mounted on the support so as to also pivot relative to the sphere along a second axis intersecting the first axis perpendicular to the center of the sphere. The means for indicating the sunrise and sunset also comprise an annual cam having a profile representative of the relative inclination of the sun with respect to the equatorial plane and arranged to be rotated at the rate of one revolution per year. a cam follower arranged to cooperate with the cam, and a first kinematic chain arranged to connect the cam follower to the circle so that the plane subtended by the circle makes with the first axis an angle equal to the angle of inclination of the Sun with respect to the equatorial plane. Referring to FIG. 1, it can be seen that, in the embodiment shown, the timepiece comprises a sunrise and / or sunset indicator mechanism which comprises a sphere 117 representing the terrestrial globe and a hull 113 in the shape of a half-moon. sphere, which is arranged concentrically with the sphere 117 so as to darken or mask half of the globe. The hull 117 has a substantially circular rim 113a, and it will be understood that this rim constitutes said circle of means for indicating the sunrise and sunset of the invention. Referring always to FIG. 1, it can be seen again that the annual cam is referenced 111 and that it is part of a tilting control mechanism (referenced overall 109). It will be understood that the cam follower (not shown) is also part of the tilt control mechanism.
    According to the invention, the means for displaying the date 123 are arranged to drive the annual cam 111 via a third kinematic chain 118. As already mentioned, the means for displaying the date 123 of this example comprise a date wheel (not shown), and the third kinematic chain 118 has the form of a gear train arranged downstream of the date wheel and whose gear ratio is 1/12. In the present example, the gear train comprises a pinion of 16 teeth integral with the date wheel, a wheel of 48 teeth meshing with the pinion of 16 teeth and secured to a pinion gear of 14 teeth, meshing itself with a wheel of 56 teeth which is integral with the annual cam 111 (the wheels and the pinions are not illustrated in the diagram of Fig. 1). The annual cam is arranged to perform a turn when the date wheel makes twelve. It will therefore be understood that the annual cam 111 and the calendar mechanism 121 are arranged to advance synchronously.
    According to the embodiment of the invention illustrated in FIG. 1, the movement of the shadow 113 in the shape of a half-sphere relative to the sphere 117 is the result of the composition of distinct rotations along two perpendicular axes intersecting at the center of the sphere. The first of these two rotations is carried out by the sphere 117 which is arranged to rotate at the rate of one turn in 24 hours around a first of these two axes, and the other rotation corresponds to the pivoting of the shadow 113 in half-sphere shape around the second axis and results in a variation of the angle of inclination of the half-sphere relative to the first axis. Since the movements of the shadow 113 and the sphere 117 relative to each other are two functionally independent movements, the sunrise and / or sunset indicator mechanism 115 is shown twice in FIG. 1. Referring to the figure, it will be understood that the mechanism 115 is represented a first time to symbolize the rotation of the sphere 117 at the rate of one turn per 24 hours around the first axis, and a second time to symbolize the pivoting shadow 113 around the second axis.
    According to the invention, the pivoting movement about the second axis is controlled from the annual cam 111 whose profile is representative of the inclination of the Sun above or below the equatorial plane. The cam follower (not shown) is arranged to transmit the variations in the profile of the cam to the hull 113 in the form of a half-sphere through a first kinematic chain 112. In accordance with the first embodiment of the invention, the cam follower invention, the shadow-shaped 113 half-sphere is pivotally mounted on a fixed support, and the arrangement of the indicator mechanism 115, such as that of the first kinematic chain 112, may be compliant for example with what is described in EP 2,911,013. This document is incorporated by reference in the present description.
    According to the present embodiment of the invention, the hours mobile 107 is connected to the sphere 117 by a kinematic chain 120 (hereinafter "the second kinematic chain 120"). The second kinematic chain is arranged to drive the sphere in rotation so that it rotates about a first axis corresponding to the polar axis of the earth, at the speed of a revolution in 24 hours. Fig. 1 also shows a disengagement mechanism 133 arranged so as to disengage on command the second kinematic chain 120.
    Still referring to FIG. 1, it can be seen that the timepiece whose operation is shown also comprises a number of correcting mechanisms which are arranged to be actuated manually by the wearer of the timepiece. First, as already mentioned, a time shift mechanism (referenced 101) is interposed between the timer train 106 and the hours mobile 107. In accordance with what will now be explained, the mechanism 101 may be ordered in two different ways depending on whether the time difference is related to a real change in longitude, following a trip for example, or that it is linked to the transition from winter time to the time of day. summer, or vice versa. In the illustrated example, when the wearer of the timepiece changes his time zone during a journey, he can correct the indication of the time using the control rod 131 of the workpiece. watchmaking. To do this, he must first pull on the rod 131 so as to bring it into position 12, before rotating the crown so as to advance or retreat the hour hand by a succession of jumps of a hour. In accordance with what has been seen above, the mobile hours 107 drives the calendar mechanism 121 and the annual cam 111. In addition, the mobile hours 107 also causes the sphere 117 in its rotation about the first axis. It will therefore be understood that the annual cam 111, the calendar mechanism 121 and the sunrise and / or sunset indicator mechanism 115 are arranged to advance synchronously, not only when they are driven from the mechanism. 103, but also when they are manually driven forward or backward with the control rod 131 in position T2.
    In the illustrated example, during the transition from winter time to summer time or summer time to winter time, the wearer of the timepiece can shift the time indication exactly one hour forward or backward by exerting pressure on the pusher P2. By pressing on the pusher P2, one actuates on the one hand the time shift mechanism 101, and secondly, it operates simultaneously the clutch mechanism 133, so as to disengage the second kinematic chain 120. It will be understood that disengaging the second drive train during a changeover from summer time to winter time, or vice versa, makes it possible to prevent the movement of the hour hand from having an effect on the relative angular position of the shadow 113 relative to the sphere 117.
    In addition to the time shift mechanism 101, the timepiece of the present example includes a traditional type of time setting. This time setting allows the wearer of the timepiece to set it on time by using the control rod 131. To do this, he must bring the rod 131 in the T3 position before rotate the crown. As in most common timepieces, the time setting is arranged to drive the timer train 106 which in turn drives the minutes mobile 105 and the hours mobile 107. As with was already the case during the correction of the time zone, the mobile hours 107 causes the calendar mechanism 121 and the annual cam 111 via the third kinematic chain 118. In addition, the mobile hours 107 also causes the sphere 117 in its rotation about the first axis. It will thus be understood that the annual cam 111, the calendar 121 and the sunrise and / or sunset indicator mechanism 115 are arranged to advance synchronously, also when they are manually driven forward or backward at using the control rod 131 in position T3.
    Finally, the calendar mechanism of the timepiece of the present embodiment also comprises a mechanism for correcting the display of the month 125 of the calendar mechanism 121. When the wearer of the timepiece wishes to correct the indication of the month, for example following an indefinite downtime of the timepiece, it can advance step by step indication of the month by operating the pusher P1. According to the present example, the actuation of the pusher P1 by the wearer of the timepiece has the effect of driving the date wheel 123 in rotation at high speed. The correction mechanism is arranged so that a single pressure on the pusher suffices to advance the date wheel one full turn if necessary. However, a mobile stop, which also comprises the correction mechanism, has the function of stopping the date wheel as soon as it reaches the angular position corresponding to the indication of the first day of the month, after having exceeded the date 31. By moving from the last day of the month to the first day of the following month, the date wheel activates the monthly training means 127, which has the effect of incrementing the display of the month 125. It will thus be understood that this correction mechanism the month's display has the advantage of keeping the link between the date and the month during the correction. The correction mechanism just explained is known per se. It is described in patent publication EP 2,503,410 entitled "calendar mechanism comprising a rapid corrector of months". This document is incorporated by reference in this patent application.
    According to what has already been explained, the means for displaying the date 123 are arranged to drive the annual cam 111 via a third kinematic chain 118. In addition, according to the first embodiment, the third drive train 118 has the form of a gear train arranged downstream of the date wheel and whose gear ratio is 1/12. Under these conditions, it will be understood that, as the correction of the month is accompanied by a rapid advance of the date, the correction mechanism of the display of the month simultaneously corrects the angular position of the annual cam 111.
    Fig. 3 2 appended is a block diagram quite similar to that of FIG. 1, but illustrating the kinematic connections associating different mechanisms of a timepiece according to a second exemplary embodiment of the invention. As will be seen, the second embodiment is very similar to the first and, in particular, the calendar mechanism, as well as the correction mechanisms arranged to be actuated by the wearer of the timepiece, are identical to those which have been described in connection with the first embodiment. In fig. 2, there is shown a drive mechanism 203 associating a drive member, a regulating member and an exhaust, a motive minutes (referenced 205) which is integral with a minute display member and which is arranged to be driven at the rate of one revolution per hour by the drive mechanism, an hours mobile 207 rotatably connected to an hour display member, a timer wheel 206 connecting the mobile of the minutes to that of the hours so as to that the latter is driven at the rate of one turn every 12 hours, a time shift mechanism (referenced 201) interposed between the timer train 206 and the mobile hours 207, a tilt control mechanism (referenced 209) which comprises an annual cam 211 and a cam follower (not shown), and finally a sunrise and / or sunset indicator mechanism (referenced 215) comprising a sphere 217 reproducing the globe and a hull 213, in the form of a half-sphere, which is arranged concentrically with the sphere.
    FIG. 2 also shows a calendar mechanism 221 which notably comprises means for displaying the date 223 arranged to be driven via the hours mobile 207, and a display of the month 225 arranged to be driven by the means for displaying the date via monthly training means (referenced 227). According to the second embodiment that is the subject of this description, the means for displaying the date 223 comprise a date wheel (not shown), and the monthly training means 227 are arranged to increment the display of the month 225 each time the date wheel moves from the position corresponding to the last day of the month to that corresponding to the first day of the following month. As was already the case for the first embodiment, the timing mechanism 221 of the timepiece according to the second embodiment is preferably a perpetual calendar or annual calendar mechanism. In addition, according to the invention, the date display mechanism 223 is arranged to drive the annual cam 211 via a third kinematic chain 218. In the illustrated example, the third kinematic chain may optionally be identical to the kinematic chain 118 described above in relation to the first exemplary embodiment.
    In the second embodiment, as in the first, the relative movement of the half-sphere 213 and the sphere 217 is the result of the composition of distinct rotations along two perpendicular axes intersecting at the center of the sphere. However, according to the second embodiment, it is the semi-sphere-shaped shadow 213 which performs both rotations simultaneously, the sphere 217 being not driven. This mode of operation is made possible by the fact that the support (not shown) on which the shadow 213 is mounted is a rotary support. Referring always to FIG. 2, it can be understood that in the illustrated embodiment, the hours mobile 207 is connected to the rotary support (not shown) by a kinematic chain 220 (hereinafter "the second kinematic chain 220"). The arrangement of the indicator mechanism 215 and that of the second driveline 220 may, for example, be in accordance with what is described in one or the other of the documents EP 2 977 832 and EP 3 007 012. These two documents are incorporated by reference in the present description.
    Referring again to FIG. 2, it can be seen that a referenced mechanism 216 is interposed between the tilt control mechanism 209 and the indicator mechanism 215. It can be seen that the mechanism 216 has an output connected to the indicator mechanism 215 and two inputs. A kinematic link 221 (called the fourth kinematic chain 221) connects the hours mobile 207 to a first of the two inputs. The mechanism 216 is driven by the mobile hours through its first input, said drive input. It can also be seen that the cam follower (not shown) is connected to the second input by a kinematic chain 212 (called first kinematic chain 212) arranged to transmit the variations in the profile of the cam. The mechanism 216 is controlled by the profile of the cam 211 through its second input, called control input. Like the second drivetrain 220, the output of the mechanism 216 is arranged to drive the indicator mechanism at the speed of one revolution in 24 hours. However, the mechanism 216 drives the indicator mechanism with a certain phase shift with respect to the second kinematic chain 220. The mechanism 216 can be realized in multiple ways without departing from the scope of the present invention. It may for example be a differential mechanism, including a differential mechanism as described in patent document EP 2 977 832. It may also be a disengaging mechanism, including a mechanism for release as described in EP 3,007,012.
    Referring now to FIGS. 3A and 3B, we will describe in more detail the time shift mechanism which is generally designated by the reference 101. Recall that the mechanism 101 was already shown in FIG. 1, interposed between the clock train 106 and the mobile hours 107. On the other hand, the mechanism 201 shown in FIG. 2 may possibly be identical to the mechanism 101. The mechanism 101 comprises a first barrel 2, said inner barrel, intended to be mounted conventionally to rotate, about an axis of rotation X, on a roadway C driven by the drive mechanism 103 (shown in Fig. 1). The inner barrel 2 carries an indicator needle 4 forming an hour hand, which needle is driven externally on a free end of the barrel 2 projecting from the mechanism 101.
    The inner barrel 2 thus forms a gun hours, and it supports a first externally toothed wheel 6, said lower wheel, having a board 7. It will be specified here that advantageously this lower wheel 6 forms a wheel hours, and it meshes with a wheel 8 (partially shown) of the timer train 106 (Fig. 1). In normal operation, this hour wheel 6 receives a time information delivered by the wheel 8 of the timer, information that it transmits, as will be understood below, indirectly to the inner barrel hours 2 and the indicator needle 4 Indeed, the lower hour wheel 6 is rotatably mounted on the gun of the hours 2. For this, the hour gun 2 has at its end which is opposite its free end carrying the needle 4, a flange
    权利要求:
    Claims (19)
    [1]
    1. Timepiece comprising a watch movement, a calendar mechanism (121) and means for indicating the sunrise and sunset, taking account of seasonal variations (109, 115), the watch movement comprising a mobile of the minutes (105), a timer train (106), an hour indicator member, and an hour handpiece (107) integral in rotation with the hour indicator member and arranged to be driven by the minute handpiece (105) via the timer train (106) is at the speed of one revolution in 12 hours, or at the speed of one revolution in 24 hours, the calendar mechanism (121) comprising means for displaying the date (123) arranged to being driven by means of the hours mobile (107), and a display of the month (125) arranged to be driven by the means for displaying the date, the sunrise and sunset indication means comprising a sphere ( 117) reproducing the globe te rrestre, a support, and a circle (113a) mounted on the support concentrically to the sphere and arranged to indicate the position of the terrestrial terminator, the sphere (117) being arranged to be driven so as to rotate at the rate of one turn per 24 hours around a first axis corresponding to the polar axis of the terrestrial globe, and the circle (113a) being mounted on the support so as to be able to pivot relative to the sphere (117) along a second axis crossing the first axis perpendicularly to the center of the sphere, the means for indicating the sunrise and sunset further comprising an annual cam (111) having a profile representative of the inclination of the Sun relative to the equatorial plane and arranged to be rotated to because of a revolution per year, a cam follower arranged to cooperate with the cam, and a first kinematic chain (112) arranged to connect the cam follower to the cam e (113a) so that the plane subtended by the circle makes an angle with the first axis equal to the angle of inclination of the Sun with respect to the equatorial plane; characterized in that the watch movement comprises a second kinematic chain (120) connecting the hours motive (107) to the sphere (117) so as to drive the sphere at the rate of one turn per 24 hours, in that the movement watchmaker, on the one hand, comprises a time-shift mechanism (101) manually operable and arranged to rotate the mobile of the hours (107; 2; 30; 32) step by step independently of the timer train (106; 8); and on the other hand, a disengagement mechanism (133) arranged to disengage the second drive train (120) when the time shift mechanism (101) rotates the moving hours to shift from summer time in winter time, or vice versa, so that the sphere can be driven at the rate of one turn per 24 hours, without being affected by the summer time / winter time correction, and that the annual cam (111) is arranged to be driven by the intermediate means for displaying the date (123) via a third kinematic chain (118).
    [2]
    2. Timepiece according to claim 1, characterized in that the watch movement comprises a first hour wheel (6) meshing with the timer (8; 106) and said timer hour wheel, and a second wheel of hours (32), said barrel wheel which is integral with said hour wheel (2,30,32; 107) and in that the summer / winter correction mechanism (101) comprises a disengageable coupling device (12, 20). 36) arranged to rotate the first (6) and second (32) hour wheels in one of a plurality of predefined relative angular positions, said angular positions being equidistant and spaced apart. on the other an angle corresponding to a distance traveled in one hour by the hour indicator member (4).
    [3]
    Timepiece according to claim 1 or 2, characterized in that the calendar mechanism (121) comprises a correction mechanism of the month display (125) arranged to simultaneously correct the angular position of the annual cam. (111), so that the display of the month and the annual cam remain synchronized after the correction.
    [4]
    4. Timepiece according to any one of claims 1, 2 and 3, characterized in that the means for displaying the date (123) comprises a date wheel and in that the third kinematic chain (118) comprises a pinion of 16 teeth integral with the date wheel, a wheel of 48 teeth meshing with the pinion of 16 teeth and secured to a pinion of return of 14 teeth, meshing itself with a wheel of 56 teeth which is integral with the annual cam (111).
    [5]
    5. Timepiece according to any one of the preceding claims, characterized in that the calendar mechanism (121) is an annual or perpetual calendar.
    [6]
    6. Timepiece according to any one of the preceding claims, characterized in that the support on which is mounted the circle (113a) is fixed.
    6. The spring 26 is therefore self-supported and self-centered. The time shift mechanism further comprises a second barrel 30, said outer barrel, which has a guide bore 31 and which is mounted externally by this bore 31 on the first barrel 2. This second barrel 30 supports a second externally toothed wheel 32 disposed above the lower wheel hours 6 and said upper wheel. It will be specified here that the upper and lower positions of the wheels 6 and 32 are taken with reference to the drawing of FIG. 3A which represents the correction mechanism with the hour switch pointing upwards. The upper wheel 32 comprises a board 33 and meshes with its outer teeth with a wheel 34 itself driven by a corrector member manually operable from outside the timepiece. The upper wheel 34 thus forms a time shift wheel allowing, as will be understood, directly correct the position of the gun hours 2 and the indicator needle 4, without acting on the timer and therefore without disturbing the other time information, such as the minute and the second, which are normally kinematically linked to the hours 2 canon via said timer. Advantageously, the outer barrel 30 is forcibly mounted externally on the inner barrel hours 2 and is therefore attached thereto. These two guns are thus integral in rotation and they can move together. It will be understood that the gun of the hours 2, the outer barrel 30 and the upper wheel 34 together form the mobile of the hours 107. The upper correction wheel 34 can thus act on the inner barrel of the hours 2 by means of the outer barrel 30 Note that the gun hours 2 is further driven in normal operation by the timer 106, including the wheel 8 of the timer. This is why in the plate 33 of the correction wheel 32 are formed radial grooves 36 in which are freely engaged pins 24 which can translate radially therein. The rollers 20 can thus rotate the correction wheel 32, and the two guns 2 and 30, when the star 12 is itself driven by the hour wheel 6. [0037] For switching to another time zone , the user of the timepiece must rotate the correction wheel 34, the rollers 20 are then angularly displaced and (while the star 12 and the hour wheel 7 remain fixed) jump in the toothing 14 of the star 12 by ovalizing the spring 26. The rollers 20 then return in the toothing 14 of the star 12, in the rest position, but staggered with respect to the position of FIG. 3B. Needle 4 then indicates another time zone. It will be specified that although the toothing of the star 12 has 12 teeth in the figures (to indicate the 12 hours), this toothing could include 24 for an application to a timepiece, type 24 h. It will further be understood that various modifications and / or improvements obvious to a person skilled in the art can be made to the embodiments which are the subject of the present description without departing from the scope of the present invention defined by the appended claims. claims
    [7]
    7. Timepiece according to any one of the preceding claims, characterized in that the means for indicating the sunrise and sunset taking into account seasonal variations (115, 109) comprise a shell (113) arranged concentrically to the sphere (117) reproducing the terrestrial globe, the hull being arranged to delimit a part of the terrestrial globe where it is night of another part where it is day, and in that the hull has the general shape of a half -sphere and has a rim of generally circular shape, the rim constituting the circle (113a) arranged to indicate the position of the terrestrial terminator.
    [8]
    8. Timepiece according to claim 7, characterized in that the second axis is substantially collinear with a diameter of the circle (113a), and in that the shell (113) carries two pivots extending the two ends of the diameter, the two pivots being pivoted on the support.
    [9]
    9. Timepiece according to claim 8, characterized in that the rim of the shell (113) has two notches arranged in diametrically opposite positions at mid-distance between the two pivots.
    [10]
    10. Timepiece comprising a watch movement, a calendar mechanism (221) and means for indicating the sunrise and sunset taking into account seasonal variations (209, 215), the watch movement comprising a mobile minute (205), a timer train (206), an hour indicator member, and a clock wheel (207) integral in rotation with the hour indicator member and arranged to be driven by the minute handpiece (205) via the timer train (206) is at the speed of one turn in 12 hours, or at the speed of one revolution in 24 hours, the calendar mechanism (221) comprising means for displaying the date (223) arranged to to be driven via the hours motive (207), and a display of the month (225) arranged to be driven by the means for displaying the date, the sunrise and sunset indication means comprising a sphere (217) reproducing the glob Earth, a support, and a circle (213a) mounted on the support concentrically to the sphere and arranged to indicate the position of the terrestrial terminator, the circle (213a) being arranged to be driven so as to rotate at the rate of a turn by 24 hours around a first axis corresponding to the polar axis of the terrestrial globe, and the circle being mounted on the support so as to be able to pivot relative to the sphere (217) along a second axis intersecting the first axis perpendicular to the center of the sphere, the means for indicating the sunrise and sunset also comprising an annual cam (211) having a profile representative of the inclination of the Sun relative to the equatorial plane and arranged to be rotated at a rate of a revolution per year, a cam follower arranged to cooperate with the cam, and a first kinematic chain (212) arranged to connect the cam follower to the circle (21). 3a) so that the plane subtended by the circle makes an angle with the first axis equal to the angle of inclination of the Sun with respect to the equatorial plane; characterized in that the watch movement comprises a second kinematic chain (220) connecting the hours motive (207) to the circle (213a) so as to drive the circle at the rate of one turn per 24 hours, in that the watch movement comprises, on the one hand, a manually operable time shift mechanism (201) arranged to pivot the hours wheel (207; 2, 30, 32) step by step independently of the timer train (206; 8), and on the other hand, a disengagement mechanism (233) arranged to disengage the second drive train when the time shift mechanism (201) rotates the moving hours to switch from summer time to summer time. winter time, or vice versa, so that the circle can be driven at the rate of one turn per 24 hours without being affected by the summer / winter time correction, and in that the annual cam (211 ) is arranged to be driven via the yens to display the date (223) via a third kinematic chain (218).
    10 forming a shoulder freely supporting a star 12 on which the wheel 6 is fixedly held. The star 12 comprises a board 13, an external toothing 14 and a circular collar 16 arranged to edge adjacent the gearing 14, behind and of coaxially with it, under the plate 13. The hour wheel 6 is fixedly held on the star 12 flank against its toothing 14. In fact, the hour wheel 6 through the part central board 7 which has a through bore, is engaged externally force on the collar 16, by driving and / or riveting. The star 12 and the hour wheel 6 are therefore directly integral in rotation and, in this example, they form, thanks to their assembly, a single insert on the barrel hours 2. The star 12 and the hour wheel 6 can therefore move together concomitantly under the effect of the wheel 8 of the timer. The time shift mechanism further comprises two drive rollers 20 which are stages and which each have a cylindrical base 22 from which extends normally a stud 24. The rollers are engaged all two at rest, by their base 22, in the toothing 14 of the star 12 and they rest freely and laterally by this base against the side, not referenced, of the board 7 of the hour wheel 6. This rest position is likewise shown in plan view in FIG. 2B. The rollers 20 are furthermore maintained in this rest position in the toothing 14, resiliently by elastic return means 26 which are formed here by a closed annular spring, mounted coaxially with the star 12 and acting radially on the outer periphery of the base 22 of the rollers 20. It will be noted here that the spring 26 is mounted freely against the drive rollers 20, without any fixed attachment to the workpiece 1. The spring 26 rests more freely against, and more particularly on the board 7 of the hour wheel
    [11]
    11. Timepiece according to claim 10, characterized in that the watch movement comprises a first hour wheel (6) meshing with the timer (8; 206) and said timer hour wheel, and a second wheel of hours (32), said barrel wheel which is integral with said hour wheel (2,30,32; 207) and in that the summer / winter correction mechanism (201) comprises a disengageable coupling device (12, 20). 36) arranged to rotate the first (6) and second (32) hour wheels in one of a plurality of predefined relative angular positions, said angular positions being equidistant and spaced apart. on the other an angle corresponding to a distance traveled in one hour by the hour indicator member (4).
    [12]
    Timepiece according to claim 10 or 11, characterized in that the calendar mechanism (221) includes a month display correction mechanism (225) arranged to simultaneously correct the angular position of the annual cam. (211), so that the display of the month and the annual cam remain synchronized after the correction.
    [13]
    13. Timepiece according to any one of claims 10, 11 and 12, characterized in that the means for displaying the date (223) comprises a date wheel and in that the third kinematic chain (218) comprises a pinion of 16 teeth integral with the date wheel, a wheel of 48 teeth meshing with the pinion of 16 teeth and secured to a pinion of return of 14 teeth, meshing itself with a wheel of 56 teeth which is integral with the annual cam (211).
    [14]
    14. Timepiece according to any one of claims 10 to 13, characterized in that the calendar mechanism (221) is an annual or perpetual calendar.
    [15]
    15. Timepiece according to any one of claims 10 to 14, characterized in that the support on which is mounted the circle (213a) is rotatable, and in that the second kinematic chain (220) comprises a cog connecting the mobile hours (107) to the rotating support.
    [16]
    16. Timepiece according to any one of claims 10 to 15, characterized in that the means for indicating the sunrise and sunset taking into account seasonal variations (215, 209) comprise a shell (213) arranged concentrically with the sphere (217) reproducing the terrestrial globe, the hull being arranged to delimit a part of the terrestrial globe where it is night from another part where it is day, and in that the hull has the general shape of a half-sphere and has a rim of generally circular shape, the flange constituting the circle (213a) arranged to indicate the position of the terrestrial terminator.
    [17]
    17. Timepiece according to claim 16, characterized in that the second axis is substantially collinear with a diameter of the circle (213a), and in that the shell (213) carries two pivots extending the two ends of the diameter, the two pivots being pivoted on the support.
    [18]
    18. Timepiece according to claim 17, characterized in that the rim of the shell (213) has two notches arranged in diametrically opposite positions at mid-distance between the two pivots.
    [19]
    19. Timepiece according to any one of the preceding claims, characterized in that the timepiece is a watch.
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2021-01-15| AZW| Rejection (application)|
    优先权:
    申请号 | 申请日 | 专利标题
    CH17352016|2016-12-23|
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