• 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 invention relates to a simple mechanism for an annual calendar for a timepiece, comprising a programming wheel (1) having external teeth and at least one internal tooth (3). This programming wheel (1) whose teeth are driven in a differential manner makes it possible to correct at least one date indicator (16) which can thus automatically adjust to the length of the months, depending on whether they are 31 days long or short. 30 days or less, and can therefore correctly display the dates for the 30 and 31-day months. February is considered here as having 30 days. The programming wheel thus rotates by 1/24 th of revolution when the date is changed between the 30th and the 31 st day of the month and pivots by another 1/24 th of a revolution when the date is changed between the 31 st day of the month. month and the first day of the following month.
    公开号:CH713000A1
    申请号:CH01310/16
    申请日:2016-10-03
    公开日:2018-04-13
    发明作者:W Lea David
    申请人:David W Lea Lea & Associe；
    IPC主号:
    专利说明:

    Description [0001] In watchmaking, the annual calendar mechanisms allow the display and the correction of the date and the month so that, in the short months (that is to say having 30 days or less), the date advances automatically at the end of the 30th day of the month until the first day of the following month.
    [0002] These mechanisms generally comprise a wheel of twenty-four teeth, so that each month is represented by a segment of 30 ° which pivots at the end of the month by two steps of S ° The segments representing the short months are differentiate by the fact that they have a long tooth (or lug) which, at the end of short months, is in a position to be driven and can therefore itself drive, thanks to an intermediate wheel, the date indicator which thus advances an additional step in addition to its usual rotation. The date then advances from the thirtieth day to the first day of the following month.
    Many patents decline in different forms the mechanism briefly discussed above. Patent CH 684 815, for example, uses a two-level month wheel where, for months of less than 31 days, a long tooth is superimposed on a short tooth. The kinematic link and the date indicator occupy here only one level. Driven by the wheel of months, the intermediate wheel meshes with the indicator of the month which rotates by 30 °. A single driving wheel drives both the date indicator and the annual wheel, which is not positioned on the central axis of the timepiece.
    Patent EP 1 666 991 has a mechanism where the annual wheel is positioned on the central axis of the timepiece. This mechanism uses a two-level intermediate wheel to rotate 15 ° of the annual wheel and the month indicator, which is attached to the annual wheel. This provision requires the name of each month to appear twice, so that the names of the months displayed are very small. Another version requires the addition of a third level to the intermediate wheel, which can then generate a 30 ° rotation of the month indicator which, here, rotates on an axis located on the annual wheel.
    This version has the advantage over the previous mechanism to allow an enlarged display of the date. This system uses a unique driving wheel to drive the date and the annual wheel.
    [0006] US Pat. No. 7,535,802 discloses another variant of an annual calendar in which the rotation of 30 ° of the display of the month is obtained thanks to an intermediate wheel which drives a ring of months with internal teeth positioned inside the the date indicator. By its nature, this ring of internally toothed months excludes the use of this annual calendar on a chronograph, unless significant changes are made.
    The invention presented here introduces an annual calendar mechanism of low height that can be used on a chronograph mechanism. Another advantage of this mechanism is that the 30 ° direct rotation of the month indicator does not require an intermediate wheel.
    This mechanism has a programming wheel (1) whose teeth are differentially driven so as to correct at least one date indicator (16) which can thus automatically adjust to the length of months according to that they are long (31 days) or short (30 days or less) and can therefore correctly display the dates for the months of 30 and 31 days. February is considered here as having 30 days. The programming wheel thus rotates by 1 / 24th of a revolution when the date is changed between the 30th and the 31st day of the month and pivots again by 1 / 24® of revolution when changing the date between the 31st day of the month and the 1st the day of the following month.
    The characteristics of the invention are discussed below and are illustrated by two figures:
    Fig. 1 is a plan view of a possible form of the invention illustrating the annual date mechanism at the date change between June 30 and July 1. In order not to overload the drawing, positioning jumpers are not usually represented; the date indicator, the dates and the months are represented only partially.
    Fig. 2 details the programming wheel as it is in the form of the invention illustrated in FIG. 1.
    In this possible form of the invention, the programming wheel has twenty-four external teeth allowing it to mesh with an intermediate set of wheels (15) during these rotations of 1 / 24® revolution. Of these twenty-four external teeth, nineteen comprise two levels (or degrees) and are therefore called step teeth (4). They thus have a first level called level truncated (5) because truncated so as to allow the passage without driving of a driving tooth (6) belonging to a driving wheel short months (7), and a second level not truncated and therefore called untruncated level (8). The remaining five teeth belonging to these twenty-four outer teeth are called full teeth (9) because they do not have a truncated level. The combination of step teeth and full teeth corresponds to the succession in the year of months having 31 days and months not having 31 days.
    Figs. 1 and 2 show that the programming wheel also has an internal tooth (3) directly driving a star of months (10) having twelve teeth and coaxial with the programming wheel. This month star is set to an indicator of the month (12) displaying the month through a window (30) of the dial or through a needle. In
    权利要求:
    Claims (10)
    [1]
    In the form of the invention illustrated, the axis of the star of the months and the programming wheel is a rod (26) belonging to or machined on the timepiece. Lafig. 1 partially shows the indicator of the month showing the month through the window. In the form of the invention illustrated, the star of the months also has a collar (13) having a notch (14) in which the internal tooth is positioned. This notch allows a first rotation of 15 ° of the internal tooth without causing the star of the months. A second rotation of 15 ° of the internal tooth makes it come into contact with the wall of the notch which causes the rotation of 30 ° of the star of the months and the indicator of the month. This rotation is controlled by a jumper (not shown). The kinematic link connecting the programming wheel to the date indicator is constituted by the intermediate wheel assembly which causes and is driven by a month tooth (17) belonging to the date indicator which displays the date either through a window or through a needle. When driven once a day by the movement of the timepiece, this date indicator rotates in 1 / 31th increments of revolution. In the form of the invention illustrated, the date is displayed through a date window (21). Thus, the date indicator presented in FIG. 1 includes a date ring (16.1) which, in addition to the tooth of the months, has thirty-one teeth, all located on the same level. In this version of the invention, the tooth of the months is a vertical extension of one of these thirty-one teeth. The date indicator is held in position by a jumper and is driven every twenty-four hours in a normal manner by the movement of the timepiece. This mechanism is well known and is not illustrated in the figures. The intermediate set of wheels consists of two wheels capable of training each other, comprising a first wheel called transmission level (18) and meshing with the programming wheel thanks to the full teeth and the non-truncated teeth to degrees, as well as a second wheel called cam wheel (24) and meshing with the tooth months and with the transmission level. In an alternative configuration of this invention, the wheels constituting the intermediate wheel assembly are united to form a single two-level element. Naturally, one or more intermediate wheel (s) can also be used, in particular to correct the direction of rotation. A control jumper (25) limits and controls the rotations of the intermediate wheel assembly so that it rotates in discrete steps as it meshes or is engaged. When the date indicator is driven in a normal manner and well known by the movement of the timepiece, the tooth month is in position to drive, when the time comes, the intermediate wheel assembly. At the end of the month, during the change of date, this rotation is transferred to the programming wheel, causing its rotation of 15 °. In the short months, this rotation repositions one of the full teeth so that it can be driven by the driving tooth belonging to the driving wheel of the short months, which operates a revolution in twenty-four hours. The full tooth is then driven and thus causes, thanks to the intermediate set of wheels, the date indicator that advances to the first day of the following month. FIG. 1 illustrates this situation as it stands at the end of June 30, when the date indicator is about to be driven to display the date of 31. This training also allows the months tooth to train. the cam wheel which pivots with a tooth, bringing with it the level of transmission. This causes the rotation of 15 ° of the programming wheel and therefore the repositioning of the solid tooth here representing the month of June which can thus be driven by the driving tooth of the driving wheel of the short months. With this additional rotation of the driving wheel of the short months, the driving tooth meshes with the full tooth representing the month of June, rotating it by 15 °. This training allows the internal tooth to come to bear against the wall of the notch and thus allows the rotation of 30 ° of the star of the months and the indicator of the month thanks to the action of a jumper ( not shown). The month indicator displays the month of July. Simultaneously, the intermediate wheel assembly pivots with the programming wheel and thus drives the tooth months and, with it, the date indicator, changing the date displayed, which passes from 31 to 1. In the 31-day months, the same principle applies except that, at the beginning of the 31st day of the month, no full tooth is in a position to be driven. The programming wheel and the month indicator do not rotate until twenty-four hours later, when the intermediate wheel assembly is driven again by the tooth of the months, whereas the date passes conventionally from 31 to the 1st. . claims
    1. An annual calendar mechanism for a timepiece for displaying and correcting the date so that, in the short months, the display of the date automatically advances at the end of the thirtieth day of the month until the beginning of the first day of the following month, characterized by the fact that this mechanism comprises at least one date indicator 16 which, when it is driven, pivots by one thirty-first revolution, and that this date indicator comprises thirty-one teeth located on the same level, as well as at least one month tooth 17 for driving an intermediate set of wheels 15, and that this mechanism also comprises at least one programming wheel 1 which pivots from a step of a twenty-fourth of a revolution at the time of the change of date between the thirtieth and the thirty-first day of the month and pivots still a step of a twenty-fourth of revolution when the date change between the thirty-u nth day of the month and the first day of the following month, and that this programming wheel has external teeth that allow it to be driven by or to drive the intermediate wheel assembly during these rotations of a twenty-fourth of revolution, and that this programming wheel also has an internal tooth 3 causing an indicator of the month 12 step of a twelfth of revolution, and that the intermediate wheel assembly is the kinematic link between the date indicator and the programming wheel, and that this intermediate wheel assembly, consisting of two wheels capable of training each other, comprises a first wheel called transmission level 18 and meshing with the programming wheel through the external teeth of said programming wheel, and a second wheel called cam wheel 24 and meshing with the tooth months, and a control jumper 25 limits the rotation of the set intermediate wheels so that they are carried out in discrete steps, and that the months of less than thirty-one days, a driving tooth 6 allows rotation at the end of the month of the programming wheel, and that one or more intermediate wheel (s) is or are used (s) to correct the direction of rotation of the intermediate wheel assembly.
    [2]
    2. Mechanism according to claim 1, characterized in that the programming wheel has twenty-four external teeth meshing with the transmission level belonging to the intermediate set of wheels, and that nineteen of these twenty-four teeth are called 4-degree teeth because composed of two levels or degrees, comprising a first level called truncated level 5 allowing the drive-free passage of the driving tooth operating a revolution in twenty-four hours, and a second level called untruncated level 8 , and that the remaining five teeth are called full teeth 9 because they have no truncated level and can therefore be driven by the driving tooth, and that each full tooth represents one of the months of the year having not thirty-one one day, and that the level of transmission of the intermediate set of wheels meshes with these twenty-four teeth thanks to the untruncated level of the teeth at degrees and thanks to the full teeth.
    [3]
    3. Mechanism according to claims 1 and 2, characterized in that, the five short months of the year, when changing the date between the thirtieth day of the month and the first day of the following month, the tooth of the months meshing with the date indicator drives the cam wheel, which in turn drives the transmission level, and this rotation is transferred to the programming wheel which pivots a twenty-fourth revolution and repositioned one of the full teeth which can then be driven by the driving tooth, and that when it is driven, this full tooth pivots the programming wheel by one twenty-fourth of a revolution, which causes the indicator of the month to rotate which rotates by a twelfth of revolution, and that the rotation of the programming wheel also allows the rotation of the intermediate set of wheels which in turn causes, thanks to the tooth of the months, the date indicator that rotates one step of a thirty-first revolution.
    [4]
    4. Mechanism according to claims 1,2 and 3, characterized in that the tooth of the month is a vertical extension of one of the thirty-one teeth of the date indicator.
    [5]
    5. Mechanism according to claims 1,2, 3 and 4, characterized in that the programming wheel is coaxial with a star of months 10, and that month star is coaxial with the central axis of the piece of watchmaking, and that the star of the month pivots about an axis constituted by a rod 26 and that it carries the indicator of the month, and that the star of the months is driven by the internal tooth of the programming wheel and displays the month of the year through the indicator of the month which is either a disc visible through a window 30 of the dial, or a needle.
    [6]
    6. Mechanism according to claims 1, 2, 3, 4 and 5, characterized in that the star months is not coaxial with the central axis of the timepiece.
    [7]
    7. Mechanism according to claims 1, 2, 3, 4, 5 and 6, characterized in that the cam wheel of the intermediate wheel assembly comprises two toothed levels fixed and coaxial to each other , a first gear level causing or being driven by the tooth of the months, and a second toothed level driving or being driven by the transmission level.
    [8]
    8. Mechanism according to claims 1, 2, 3, 4, 5, 6 and 7, characterized in that the transmission level of the intermediate set of wheels comprises both internal and external teeth.
    [9]
    9. Mechanism according to claims 1,2, 3, 4, 5 and 6, characterized in that the transmission level and the cam wheel of the intermediate wheel assembly form a single element with two levels.
    [10]
    10. Mechanism according to claims 1, 2, 3, 4, 5, 6, 7, 8 and 9, characterized in that the transmission level of the intermediate wheel assembly meshes with the teeth of the programming wheel by the two degrees of the teeth to degrees.
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    同族专利:
    公开号 | 公开日
    CH713000B1|2021-12-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP1316858A1|2001-11-30|2003-06-04|Rolex Sa|Date mechanism for timepiece|
    EP1785783A1|2005-11-11|2007-05-16|ETA SA Manufacture Horlogère Suisse|Annual calendar mechanism for a clock movement|
    CH708962A2|2013-12-05|2015-06-15|David W Lea|Annual Calendar timepiece.|FR3104748A1|2019-12-12|2021-06-18|Laurent MAZOUNIE|Simplified annual calendar|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH01310/16A|CH713000B1|2016-10-03|2016-10-03|Annual calendar for a timepiece.|CH01310/16A| CH713000B1|2016-10-03|2016-10-03|Annual calendar for a timepiece.|
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