• 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 mechanism for catching up clearance between a first kinematic chain and a second kinematic chain of a clock mechanism, this mechanism for catching backlash (118) comprising a play-catching wheel formed of a first catch-up wheel. play wheel (122) and a second play-catching wheel (124), the first play-catching wheel (122) being fixedly mounted on an axis (120), while the second play-catching wheel (124) ) is rotatably mounted on the axis (120), a spring (128) comprising a first end (128a) and a second end (128b) being arranged between the first clearance adjustment wheel (122) and the second wheel (128). of a backlash (124), the first end (128a) of the spring (128) being fixed to the first play-catching wheel (122), and the second end (128b) of the spring (128) being fixed to the second play-catching wheel (124), the first catch-up wheel a clearance apex (122) being engaged with a first end wheel of the first drive train, and the second clearance take-up wheel (124) being engaged with a second end gear of the second drive train, the first drive train being directly kinematically related to the second kinematic chain. The first kinematic chain may be for example a walking time equation mechanism and the second time display mechanism.
    公开号:CH712586B1
    申请号:CH00202/17
    申请日:2017-02-22
    公开日:2017-12-29
    发明作者:Dauby Sylvain；Zaugg Alain；Pittet Jan
    申请人:Montres Breguet Sa；
    IPC主号:
    专利说明:

    Description
    TECHNICAL FIELD OF THE INVENTION [0001] The subject of the present invention is a catch-up mechanism between a first kinematic chain and a second kinematic chain of a clock mechanism. The present invention also relates to a clock mechanism comprising such a game-making mechanism. In particular, the present invention relates to the use of a game-catching mechanism in a walking equation mechanism controlled by a differential device.
    BACKGROUND OF THE INVENTION [0002] As is known, there is a difference between the true solar time which corresponds to the duration which elapses between two consecutive zenith passages of the Sun at the meridian of the same place, and the average solar time or civil time which is the average, made over the year, of the duration of all true solar days. This difference between the civil time and the true time reaches + 14 min 22 s on February 11, and -16 min 23 s on November 4. These values vary little from year to year.
    To indicate the time difference between the civil time and the true time, some timepieces include, in addition to the hand that indicates the minute of the civil time, a so-called time equation mechanism that includes a needle that moves next to a graduated scale to indicate the difference between the minute of the civil time and the minute of the solar time for a given day. This minute hand of the true time is actuated by a weather equation cam whose profile is determined by the difference between the mean solar time and the true solar time for all the days of the year.
    [0004] Another mechanism for indicating the time difference between the civil time and the true time is known as the walking time equation. The turnout of a timepiece equipped with a walking time equation mechanism comprises two concentric minute hands, one indicating the minute of the civil time, and the other indicating the minute of the true time. At any moment, the difference between the minute hand of the civil time and the minute hand of the true time is determined by the difference between the mean solar time and the true solar time for the day of the year considered. As in the case of the equation of time mechanism, the minute hand of the true time of a walking equation mechanism is actuated by a time equation cam.
    The equation of time cam is rotated at a rate of one revolution per year from a date mechanism that can be simple or perpetual.
    The simple date is a mechanism arranged to indicate the day of the week, the day of the month, the month of the year or the phases of the moon, but which does not take into account the variation in the number of days in the month (month of 28, 29 or 30 days). In other words, the user of a watch having a simple date mechanism will have to perform a manual correction every month ends that are less than 31 days. For example, February 28 or April 30 will require manual intervention. With regard to the perpetual calendar mechanism, it allows, as a simple date mechanism, to indicate the day, the date, the month and the phases of the Moon. But unlike a simple date mechanism, a perpetual calendar mechanism automatically takes into account the length of the months (28, 29 and 30 days), without manual intervention. A perpetual calendar mechanism therefore automatically takes into account leap years.
    An example of a walking time equation mechanism is disclosed by the European patent application EP 1 286 233 A1 in the name of the Applicant. Fig. 1 attached to the present patent application is taken from European Patent Application EP 1 286 233 A1 mentioned above and illustrates a walking time equation mechanism driven by a differential device.
    In this figure is particularly visible a weather equation cam 1 whose profile is determined by the difference, for each day of the year, between the mean solar time or civil time and true solar time. This equation of time 1 cam is rotated at a rate of one revolution per year from a simple or perpetual calendar mechanism that includes the timepiece. Equation cam of time 1 carries a disc of months 2 which rotates at the same speed as it and which makes it possible to make coincide the position of this equation cam of time 1 with the date indicated by the date mechanism so that the minute hand of solar time 4 indicates the exact offset between the minute of the civil time and the minute of the solar time.
    The date mechanism, simple or perpetual, can be of any known type and will not be described here in its entirety. For a good understanding, it suffices to know that this date mechanism drives the equation cam of time 1 at the rate of one complete revolution per year. However, it is shown for illustrative purposes only a date mobile 6 driving a needle 8 which indicates the date (1 to 31). This mobile date of 6 rotates at a rate of one complete turn per month. It is actuated by the date mechanism and drives the equation cam of time 1 via an intermediate date wheel 10 which makes it possible to reverse the direction of rotation, and a reducing satellite mobile 12 which makes it possible to reduce the speed of rotation. rotation of one full turn per month to one full turn per year.
    The minute hand of the solar time 4 is driven by a differential gear device 14 which has for respective inputs a gear train driving a minute hand of the civil time 18, and a rake 20 which cooperates with the equation cam time 1 (in Fig. 1, the rake 20 is shown in its two extreme positions, once in full line, and the other time in dashed line). More precisely, as can be seen in FIG. 1, the differential gear device 14 comprises at least one and, preferably, two planet gears 22 driven by the timer of the watch movement of the watch. These two planet gears 22 are able to turn on themselves and to roll on the internal toothing 24 of an equation wheel of time 26. The latter also has on its outer periphery a first toothed sector 28 by which it co-operates with a second toothed sector 30 which is provided with the rake 20 at one of its ends. This rake 20 is subjected to the return action of a spring (not shown) attached to the frame of the watch and which tends to apply a feeler 32 forming the other end of the rake 20 against the profile of the equation cam The solar weather display gear includes a sun time display pinion 34 placed in the center of the differential gear device 14. This sun time display pinion 34 meshes with the planet gears 22, and on the other hand a display wheel of the solar time 38 which meshes with a roadway 40 on the barrel from which is driven the minute hand of the solar time 4. This wheel 38, 40 allows to to return the display of the solar minute to the center 42 of the clockwork movement of the watch, so that the minute hand of the solar time 4 is concentric with the minute hand of the civil time 18.
    The equation mechanism of walking time that has just been described operates in the following manner.
    In normal operation of the watch, the equation cam time 1, the rake 20 and therefore the equation wheel time 26 are immobile. On the other hand, the planet gears 22 are driven by the watch movement of the watch. They therefore turn on themselves and roll on the internal toothing 24 of the equation wheel of time 26, driving the display pinion of the solar time 34 in rotation, which allows the minute hand of the solar time 4 to rotate concomitantly with the minute hand of the civil time 18. The gap between the minute hand of the solar time 4 and the minute hand of the civil time 18 remains constant over a period of 24 hours.
    Once a day, around midnight, the equation cam of time 1 pivots, driven by the date mechanism that changes the calendar from one day to the next. At this precise moment, the feeler 32 which is in contact with the profile of the equation cam of the time 1 rotates the rake 20 in turn. This rake 20, by pivoting, drives the equation wheel of the time 26. rotation. The planet gears 22 being, during this brief time interval, substantially immobile (they turn one on their own in one hour), rotate on themselves while being rotated by the equation wheel of time 26, and in turn drive the sun time display gear 34 so as to again exactly adjust the position of the minute hand of the solar time.
    The equation mechanism of the walking time described above thus allows, by means of a minute hand of the civil time and a minute hand of the solar time, to display at any time the difference of time between the mean solar time and the true time. Because of their complexity, mechanisms of this type nevertheless sometimes have problems of play between the teeth of the different mobiles that compose them, which affects the accuracy of the display of the temporal quantities by means of indicator organs, especially in case shocks that can cause inadvertent jumps indicator organs. SUMMARY OF THE INVENTION The object of the present invention is to overcome the problems described above as well as others by providing a mechanism making it possible to make up for possible gaps between the teeth of the various mobiles which compose respectively a first kinematic chain and a second kinematic chain of a clock mechanism.
    For this purpose, the subject of the present invention is a mechanism for catching up clearance between a first kinematic chain and a second kinematic chain of a clock mechanism, this mechanism for catching a game comprising a gaming retrofit wheel formed of a first game-catching wheel and a second game-catching wheel, the first game-catching wheel being fixedly mounted on an axis which is free to rotate, while the second game-catching wheel is free-mounted; in rotation on the axis, a spring comprising a first end and a second end being arranged between the first clearance adjustment wheel and the second clearance adjustment wheel, the first end of the spring being fixed on the first wheel of catching up of play, and the second end of the spring being fixed on the second play-back wheel, the first play-catching wheel being engaged with a first wheel terminal end of the first kinematic chain, and the second clearance adjustment wheel being engaged with a second end wheel of the second kinematic chain, the first kinematic chain being further directly related ci-nematically to the second kinematic chain.
    The invention also relates to a watch mechanism comprising a game-catching mechanism of the kind mentioned above and also comprising, as first kinematic chain, a walking time equation mechanism which displays the minute of the solar time, also called minute of true time, by means of a minute hand of the true time, and as second kinematic chain, a mechanism of display of the civil time by means of a hand of the hours of the civil time and a minute hand of the civil time.
    According to other features of the invention which are the subject of the dependent claims: - The play compensating mechanism consists of a freely rotatably mounted shaft and on which the first catch-up wheel is mounted fixedly while the second game-catching wheel is rotatably mounted; the second clearance adjustment wheel is fixedly mounted on a tube mounted free to rotate on the axis; the first kinematic chain comprises a walking time equation mechanism which displays the solar time minute or true time by means of a minute hand of the true time, and the second kinematic chain comprises a calendar time display mechanism. by means of a hand of the hours of the civil time and a hand of the minutes of the civil time; the first kinematic chain comprises a floor of the minutes of the true time on which the minute hand of the true time is driven, a multiplier satellite and a gun of the hours of the civil time, and the second kinematic chain comprises a floor of the minutes of the civil time on which the minute hand of the civil time is driven away, a reducing satellite mobile and the canon of the hours of the civil time on which is driven the hour hand of the civil time; the first game-catching wheel is in contact with the floor of the minutes of the true time, and the second game-catching wheel is engaged with the floor of the minutes of the civil time; - The walking time equation mechanism includes a time equation cam having a profile that is determined by the difference, for each day of the year, between the mean solar time or civil time, and the solar time or time true, this equation of time cam being rotated at the rate of one revolution per year by a clockwork movement, the position of the minute hand of the true time being determined by the position of the equation cam time; the walking time equation mechanism also comprises a differential gear device whose first input is constituted by a floor wheel integral with the floor of the minutes of the civil time which is driven by the watch movement and which makes a turn in 1 hour, and of which a second input is constituted by the equation of time cam; - the roadway on which is fixed the road wheel drives via the satellite gear reducer the gun of the hours of the civil time on which is driven the hour hand of the civil time, and the gun of the hours of the civil time drives via the mobile satellite multiplier the pavement of the minutes of the true time on which is driven the minute hand of the true time; the reducing satellite mobile device makes it possible to reduce the speed of rotation from one complete revolution per hour to one complete revolution per twelve hours, and the multiplier satellite mobile device makes it possible to increase the speed of rotation of a complete revolution in twelve hours to one full turn per hour; the reducing satellite mobile and the multiplying satellite mobile turn on themselves by describing a circular trajectory centered on the floor of the minutes of the true time; the reducing satellite mobile and the multiplying satellite mobile are equidistant from the floor of the minutes of the true time; - The reducing satellite mobile and the multiplier satellite mobile are rotated free by an upper differential frame whose gun hours civil time is secured; - The reducing satellite mobile and the multiplier satellite mobile are pivotally mounted about a first pin, respectively a second pin, fixed in the upper differential frame; the reducing satellite mobile comprises a first satellite wheel integral with a first satellite gear; - The floor of the minutes of the civil time meshes with the first satellite wheel, and the first satellite gear rolls on a first internal toothing of a fixed differential ring, which has the effect of rotating the upper differential frame; the second satellite wheel meshes with the minutestream of the true time, and the second satellite gear rolls on a second internal toothing of a mobile differential ring which is kinematically connected to the equation of time cam; - The mobile differential ring is pivotally controlled by a time equation lever provided with a probe nose through which the equation of time lever follows the profile of the equation cam time; the time equation lever is held resiliently against the profile of the equation of time cam by a spring; the time equation lever is provided with a first tooth engaged with a corresponding second tooth provided on the mobile differential ring gear to control the movement of the latter; - The differential frame comprises an upper frame fixed on a lower frame by means of at least one screw.
    With these features, the present invention provides a mechanism which, disposed between a first set of gear wheels and a second set of gear wheels, makes up for possible play between the teeth of the different gear wheels that make up these first and second trains. To achieve this objective, the present invention teaches to arrange between the first and second sets of gears a reclining game mobile whose first wheel, mounted fixed on an axis, is engaged with a wheel of the first train, and a second wheel, mounted free in rotation on the axis, is engaged with a wheel of the second train. Furthermore, a spring is fixed at its ends between the first and the second wheels of the slack adjuster. The slack adjuster is mounted between the first and second sets of sprockets so that the springs are at least slightly stretched and exerts on the first and second wheels an elastic return torque. This elastic return torque which is a motor for one of the two gear trains, and which is resistant to the other set of gear wheels, is transmitted gradually to all the elements of the two gear trains, and tends to apply the teeth of these different elements against each other. It is thus possible to compensate for all the play between the teeth of the different gears that make up the first and second trains.
    BRIEF DESCRIPTION OF THE FIGURES [0020] Other features and advantages of the present invention will emerge more clearly from the following detailed description of an exemplary embodiment of a walking time equation device equipped with a catch-up mechanism. set according to the invention, this example being given purely by way of illustration and not limiting only in connection with the appended drawing in which: FIG. 1 already cited, is a view of a running time equation mechanism according to the prior art moved by a differential device; fig. 2 is a top view of a walking equation device in which is integrated a play catch mechanism according to the invention; fig. 3 is an elevational view of the walking equation device in which the play catch mechanism according to the invention is integrated; fig. 4A is a sectional view along the line A-A of FIG. 3 of the walking equation device in which is integrated the play catch mechanism according to the invention; fig. 4B is a sectional view along the line B-B of the walking equation device illustrated in FIG. 3, and FIG. 5 is a detail view on a larger scale of the play catch mechanism according to the invention.
    DETAILED DESCRIPTION OF AN EMBODIMENT OF THE INVENTION [0021] The present invention proceeds from the general inventive idea of placing between a first and a second kinematic chain of a watch mechanism a mechanism for catching up play capable of exert on the various components of these two kinematic chains an elastic return force which tends to apply the teeth of these components against each other. The elastic return force is transmitted gradually to all the components of these two chains, which makes it possible to completely compensate for any gaps between these components. The invention will be described in its application to the compensation of games between the components of a walking time equation mechanism for displaying the minute of solar time or true time by means of a minute hand of true time (first driveline), and a device for displaying the civil time by means of an hour hand and a minute hand of the civil time (second driveline). It will be understood, however, that the present invention is not limited to such an embodiment and that it is conceivable to arrange a game retrofit mechanism according to the invention between two given kinematic chains having at least one component in common.
    As can be seen in FIG. 2, a walking time equation mechanism, generally designated by the general numerical reference 44, includes a switch whose function is to indicate the solar time or true time by means of a time hour hand. and a hand of the minutes of the true time 50, concentric with the hand of the hours of the civil time 46, and which indicates the minute of the true time. To enable the wearer of the watch to easily identify the minute hand of the true time 50, the latter can, for example, end with a representation of the astrological symbol of the sun 52. As will be seen in more detail later. From the present description, the exact position of the minute hand of the true time 50 for a given day can be determined once in 24 hours, around midnight.
    We can also see in fig. 2 a part of the equation mechanism of the walking time 44, and in particular a weather equation cam 54 whose profile, let us recall it, is determined by the difference between the mean solar time or civil time, and the solar time or true time for each day of the year.
    Still in connection with FIG. 2, we see that the time equation cam 54 is fixed on an equation wheel of time 56 which is driven at the rate of one complete revolution per year by a simple or perpetual calendar mechanism (not shown) that comprises the timepiece. This date mechanism can be of any known type and will not be described here in detail. It is sufficient, in fact, for a good understanding of the operation of the equation of walking time equation 44, to know that this date mechanism drives the equation wheel of time 56 on which is fixed the equation of time cam. at the rate of one complete turn a year. In the case where the date mechanism is also used to display the date, this date mechanism may include a date wheel 58 which rotates at a rate of one complete revolution per month by driving a date indicator 104. On the other hand the time equation wheel 56 is driven by the date wheel 58 via an intermediate date wheel 60 for reversing the direction of rotation, and a reducing satellite wheel 62 which makes it possible to reduce the speed of rotation of the wheel. one full turn per month to one full turn per year.
    The minute hand of the true time 50 is driven by a differential gear device 64 which has respective inputs a wheel 66 of a work train (see Fig. 4A) and a time equation lever 68 visible in fig. 2. The wheel 66 of the finishing train drives the hour hand of the civil time 46, while the equation lever of the time 68 cooperates with the equation of time cam 54.
    More specifically, FIG. 4A illustrates a display mechanism of the civil time which includes a clock of the hours of the civil time 70 (which one can also call wheel of the civil hours) and on which is driven the hour hand of the civil time 46. A floor civil time minutes 74 is driven by the wheel 66 of the finishing gear of the timepiece of the timepiece via a road wheel 72 fixed for example by driving on the floor of the minutes of the civil time 74 which carries a Civil time minute hand 75. In turn, the civil time minute track 74 drives a reducing satellite wheel 76 formed of a first satellite wheel 78 and a first satellite gear 80 secured to the first wheel of the engine. satellite 78.
    The satellite gear reducer 76 is pivotally mounted about a first pin 82 fixed for example by driving in a differential upper frame 84 which is secured to the gun hours of civil time 70 on which is driven the hour hand civil time 46. Driven by the floor of the minutes of civil time 74 via the first satellite wheel 78, the first satellite gear 80 rolls on a first internal toothing 86 of a first fixed differential ring 88 which is carried by the clockwork movement. By rolling on the first internal toothing 86 of the fixed differential ring gear 88, the first satellite gear wheel 80 rotates the upper differential frame 84 and thus the civil time hour gun 70 which is integral with the differential upper frame 84. By a judicious choice of the gear ratios between the floor of the minutes of the civil time 74, the first satellite wheel 78, the first satellite gear 80 and the fixed differential ring 88, a reduction of one twelfth between the minute of the civil time provided by the floor wheel 72 and the time of the civil time displayed by the hour hand of the civil time 46 driven on the barrel of the hours of the civil time 70. In other words, the reducing satellite mobile 76 allows, by a reduction of one twelfth, from the minute of the civil time to the time of the civil time.
    As also visible in FIG. 4B, a multiplier satellite mobile 90 is formed of a second satellite wheel 92 and a second satellite pinion 94 integral with the second satellite wheel 92. The multiplier satellite mobile 90 is mounted free around a second pin 96 fixed for example by driving in the upper differential frame 84 which is secured to the gun of the hours of the civil time 70. When the gun of the hours of the civil time 70 and thus the differential frame 84 rotate, they cause the second pin 96 and, by Therefore, the multiplier satellite mobile 90 whose second satellite gear 94 rolls on a second internal toothing 98 of a mobile differential ring 100 which will be seen below that it is engaged with the equation of time cam. The second satellite wheel 92 in turn causes a floor of the minutes of the true time 102 on which is driven the minute hand of the true time 50. By a judicious choice of rap gear ports between the clock of the civil time hours 70, the second satellite wheel 92, the second satellite gear 94 and the mobile differential ring gear 100, a twelve-fold increase is made between the time of the civil time and the minute of the true time and one thus obtains the display of the minute of the true time. In other words, the multiplier satellite mobile 90 makes it possible, by a multiplication by twelve, to go from the time of the civil time to the minute of the true time.
    It follows from the foregoing that the reducing satellite mobile 76 and the multiplier satellite mobile 90 turn on their own by describing a circular trajectory centered on the gun of the hours of the civil time 70. Preferably, the reducing satellite mobile 76 and the multiplier satellite mobile 90 move on the same circle, centered on the gun of the hours of the civil time 70, being angularly spaced.
    The mobile differential ring 100 is pivotally controlled by the equation of time lever 68 provided with a probe nose 106 through which the equation of time lever 68 is in contact with the profile of the time equation cam 54. This time equation lever 68 is held resiliently against the profile of time equation cam 54 by a spring 108. This time equation lever 68 is also provided with a first tooth 110 engaged with a corresponding second tooth 112 provided on the mobile differential ring gear 100 to control the movement of the latter. It is understood that at a time close to midnight when the date mechanism changes date, it controls the advance of a step of the date wheel 58. During this brief moment when the change of date occurs, the differential upper frame 84 and thus the gun of the hours of the civil time 70 can be considered as immobile. By pivoting, the mobile differential crown 100 drives the second satellite gear 94 and thus the second satellite wheel 92 which, in turn, meshes with the floor of the minutes of the true time 102 on which is driven the minute hand of the true time 50. The position of the minute hand of the true time 50 is thus adjusted for the day to come. In the case of a trailing date mechanism, the position of the minute hand of the true time 50 is continuously adjusted.
    Referring to FIG. 2, we see that a screw 114 closes the differential upper frame 84 on a lower differential frame 116. The differential frames 84 and lower 116 therefore rotate together when the differential gear device 64 operates.
    According to the invention and also illustrated in FIGS. 4A and 4B, a play-catching mechanism 118 is mounted between the differential upper frame 84 and the lower differential frame 116. This play-catching mechanism 118 consists of an axis 120 mounted free to rotate between the upper frame differential 84 and the lower differential frame 116 and on which are mounted a first clearance adjustment wheel 122 and a second clearance adjustment wheel 124. The first clearance adjustment wheel 122 is mounted fixed, typically by driving, on the axis 120. As for the second play-catching wheel 124, it is driven on a tube 126 which is rotatably mounted on the axis 120. The first play-catching wheel 122 meshes with the floor of the minutes of the true time 102, while the second play-catching wheel 124 meshes with the floor of the civil time minutes 74.
    According to another characteristic of the invention, a spring 128 comprising a first end 128a and a second end 128b is arranged between the first clearance adjustment wheel 122 and the second clearance adjustment wheel 124. The first end 128a the spring 128 is fixedly mounted on the first play-catching wheel 122, while the second end 128b of the spring 128 is fixed on the second play-catching wheel 124, typically by means of a pin 130.
    In normal operating mode, the gap between the minute hand of the civil time 75 and the minute hand of the true time 50 remains constant. In other words, the floor of the minutes of the civil time 74 and the floor of the minutes of the true time 102 turn at the same speed.
    By cons, at the time, typically at midnight, where the gap between the minute hand of the civil time 75 and the minute hand of the true time 50 is adjusted for the next day under the effect of the triggering of the date mechanism, the floor of the civil time minutes 74 which meshes with the second play-catching wheel 124 is substantially immobile, while the floor of the minutes of the true time 102 which meshes with the first play-catching wheel 122 is rotated in one direction or the other by the mobile differential crown 100 which itself is controlled by the time equation cam 54 via the equation lever of time 68.
    The play catching mechanism 118 is mounted between the upper differential frame 84 and the lower differential frame 116 so that the spring 128 is at least slightly stretched and exerts an elastic return force on the first and second wheels. The restoring elastic force is transmitted gradually to all the elements of a first kinematic chain formed by the roadway of the minutes of the civil time 74, the satellite gear reducer 76 and the differential ring gear. fixed 88, and all the elements of a second kinematic chain formed by the floor of the minutes of the true time 102, the multiplier satellite mobile 90 and the mobile differential ring 100. It follows that the teeth of the various gears and wheels are applied against each other, which makes it possible to compensate for all the gaps between these toothing. Note that the fixed differential ring 88 is totally immobile, while the mobile differential ring 100 is almost constantly immobile, insofar as its displacement is controlled by the date mechanism whose indication that it provides is corrected once every 24 hours, around midnight, is continuously corrected extremely slowly in the case of a trailing calendar mechanism. Therefore, the play catch mechanism 118 has no effect on the timer of the watch movement of the watch.
    It goes without saying that the present invention is not limited to the embodiment which has just been described and that various variants and simple modifications can be envisaged without departing from the scope of the invention as defined by the claims. attached.
    Nomenclature [0038] Equation Came of Time 2. Disc of Months 4. Needle of Minutes of Solar Time 6. Date Mobile 8. Needle 10. Intermediate Date Return Wheel 12. Reduction Satellite Mobile 14. Differential gearing 18. Civil time minute hand 20. Rake 22. Spur gears 24. Inner gearing 26. Time equation wheel 28. First gear sector 30 Second gear sector 32. Feeler 34. Solar display gear 38. Display wheel of solar time 40. Road 42. Center 44. Equation mechanism of walking time 46. Needle of hours of civil time 50. Needle of minutes of true time 52. Astrological symbol of sun 54. Came d equation of time 56. Equation wheel of time 58. Date wheel 60. Interim return wheel of date 62. Mobile reduction 64. Differential gear device 66. Finishing wheel wheel 68. Equation lever of the time 70. Canon of civilian time 72. Road wheel 74. Civil time floor 75. Civil time minute hand 76. Reducer satellite car 78. First satellite wheel 80. First satellite gear wheel 82. First pin 84. Differential upper frame 86. First internal toothing 88. Fixed differential crown 90. Mobile satellite multiplier 92. Second satellite wheel 94. Second satellite gear 96. Second pin 98. Second inner toothing 100. Mobile differential ring 102 Pavement of minutes of true time
    权利要求:
    Claims (21)
    [1]
    1. Mechanism for catching up clearance between a first kinematic chain and a second kinematic chain of a clock mechanism, this game-catching mechanism (118) comprising a play-catching wheel formed of a first game-catching wheel ( 122) and a second play-catching wheel (124), the first play-catching wheel (122) being fixedly mounted on an axis (120) which is free to rotate, while the second play-catching wheel (124) is rotatably mounted on the axle (120), a spring (128) having a first end (128a) and a second end (128b) being arranged between the first play catch wheel (122) and the second clearance take-up wheel (124), the first end (128a) of the spring (128) being attached to the first clearance take-up wheel (122), and the second end (128b) of the spring (128) being attached to the second game-making wheel (124), the first wheel of ra a clearance wheel (122) engaged with a first end wheel of the first drivetrain, and the second clearance adjuster wheel (124) engaged with a second end wheel of the second drivetrain, the first drivetrain being directly kinematically related to the second kinematic chain.
    [2]
    2. Play-catching mechanism according to claim 1, characterized in that the second play-catching wheel (124) is fixedly mounted on a tube (126) rotatably mounted on the axis (120).
    [3]
    3. Watchmaking mechanism comprising a play catch mechanism according to one of claims 1 and 2, the watch mechanism also comprising, as the first kinematic chain, a walking time equation mechanism (44) which displays the minute of the solar time, also called minute of true time, by means of a minute hand of the true time (50), the clock mechanism also comprising, as second kinematic chain, a display mechanism of the civil time by means of a hand of the hours of the civil time (46) and a hand of the minutes of the civil time (75).
    [4]
    Clock mechanism according to claim 3, characterized in that the walking time equation mechanism (44) comprises a time equation cam (54) having a profile which is determined by the difference, for each day of the equation. year, between the mean solar time still called civil time, and the solar time still called true time, this time equation cam (54) being rotated at the rate of one revolution per year by a clockwork movement the position of the minute hand of the true time (50) being determined by the position of the time equation cam (54).
    [5]
    5. Watchmaking mechanism according to claim 4, characterized in that the walking time equation mechanism (44) comprises a time slot of the true time (102) on which the minute hand of the true time (50) is driven. a multiplier satellite mobile (90) and a civil time clock (70), and the civil time display mechanism includes a civil time minute track (74) on which the minute hand of the civil time (75), a reducing satellite mobile (76) and the civil time clock (70).
    [6]
    6. Watchmaking mechanism according to claim 5, characterized in that the first game-catching wheel (122) is in contact with the pavement of the minutes of the true time (102), and the second play-catching wheel (124) is engaged with the floor of the minutes of the civil time (74).
    [7]
    7. Watchmaking mechanism according to one of claims 5 and 6, characterized in that the walking time equation mechanism (44) also comprises a differential gear device (64) of which a first input is constituted by a road wheel (72) secured to the floor of the minutes of the civil time (74) which is driven by the watch movement and which makes a turn in 1 hour, and a second input is constituted by the equation of time cam (54). ).
    [8]
    8. Clock mechanism according to claim 7, characterized in that the floor of the minutes of the civil time (74) on which is fixed the road wheel (72) drives via a reducing satellite wheel (62) the gun of the hours of civil time (70) on which is driven the hour hand of the civil time (46), and the canon of the hours of the civil time (70) drives via a satellite mobile multiplier (90) the floor of the minutes of the true time (102) on which is pushed the minute hand of the true time (50).
    [9]
    9. Watchmaking mechanism according to claim 8, characterized in that the reducing satellite dish (62) makes it possible to reduce the speed of rotation from one complete revolution per hour to one complete revolution per twelve hours, and the multiplier satellite mobile (90). allows to increase the rotation speed of a complete revolution in twelve hours to one complete revolution per hour.
    [10]
    10. Watchmaking mechanism according to one of claims 8 and 9, characterized in that the reducing satellite mobile (62) and the multiplier satellite mobile (90) rotate on themselves by describing a circular path centered on the pavement minutes of the true time (102).
    [11]
    11. Watchmaking mechanism according to claim 10, characterized in that the reducing satellite mobile (62) and the multiplier satellite mobile (90) are equidistant from the floor of minutes of true time (102).
    [12]
    12. Watch mechanism according to one of claims 8 to 11, characterized in that the reducing satellite mobile (62) and the multiplier satellite mobile (90) are rotated free by an upper differential frame (84) whose barrel hours of civil time (70) is solidary.
    [13]
    13. Watchmaking mechanism according to claim 12, characterized in that the reducing satellite mobile (62) and the multiplier satellite mobile (90) are pivotally mounted around a first pin (82), respectively a second pin (96). fixed in the differential upper frame (84).
    [14]
    14. Watchmaking mechanism according to claim 13, characterized in that the reducing satellite mobile (62) comprises a first satellite wheel (78) integral with a first satellite gear (80).
    [15]
    15. Watchmaking mechanism according to claim 14, characterized in that the floor of the minutes of the civil time (74) meshes with the first satellite wheel (78), and the first satellite gear (80) rolls on a first internal toothing ( 96) of a fixed differential ring gear (88), thereby rotating the differential upper frame (84).
    [16]
    16. Watchmaking mechanism according to one of claims 13 to 15, characterized in that the multiplier satellite mobile (90) comprises a second satellite wheel (92) integral with a second satellite gear (94).
    [17]
    Clock mechanism according to claim 16, characterized in that the second satellite wheel (92) meshes with the pavement of the minutes of the true time (102), and the second sun gear (94) rolls on a second internal toothing ( 98) of a movable differential ring (100) which is kinematically connected to the time equation cam (54).
    [18]
    18. Watchmaking mechanism according to claim 17, characterized in that the mobile differential ring (100) is pivotally controlled by a time equation lever (68) provided with a probe nose (106) through which the time equation lever (68) follows the profile of the time equation cam (54).
    [19]
    19. Watchmaking mechanism according to claim 18, characterized in that the time equation lever (68) is held resiliently against the profile of the equation cam (54) by a spring (108).
    [20]
    Clock mechanism according to claim 19, characterized in that the time equation lever (68) is provided with a first tooth (110) engaged with a corresponding second tooth (112) provided on the movable differential ring gear. (100) to control the movement of the latter.
    [21]
    21. Watchmaking mechanism according to claim 20, characterized in that the differential frame comprises an upper frame (84) fixed on a lower frame (116) by means of at least one screw (114).
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH17112016|2016-12-22|
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