• 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 system (1) for displaying the running time of a clockwork movement (M) comprising: an input mobile (11) intended to be driven by said movement; a first display device (5) of a first cyclic time division arranged to be driven through said input mobile (11). According to the invention, said system (1) further comprises a second display device (7) of a second time division arranged to be driven at a rate of one step per complete cycle of said first time division, said operating time being indicated by the sum of the indication of said first time division and the indication of said second time division.
    公开号:CH712309A2
    申请号:CH00418/16
    申请日:2016-03-30
    公开日:2017-10-13
    发明作者:Grüring Pierre-Yves
    申请人:Vaucher Mft Fleurier S A；
    IPC主号:
    专利说明:

    Description TECHNICAL FIELD [0001] The present invention relates to the field of watchmaking. It relates, more particularly, a display system of the running time of a watch movement.
    PRIOR ART [0002] URWERK UR-203 has proposed an "odometer" type display which indicates the running time of the watch over a 150-year scale. This scale extends over 270 ° of a disc which is driven by the movement at the rate of one turn per 200 years.
    However, it is impossible to read this display accurately, which may be important for reasons of timing of the maintenance of the watch. To overcome this defect, the above-mentioned part also incorporates an additional display that indicates the running time on a three-year scale, and thus indicates the interval between services. This display must be reset by a watchmaker during each maintenance of the room.
    The object of the invention is therefore to provide a system for displaying the running time of a watch movement that reads accurately and requires no reset by a watchmaker. Furthermore, another object of the invention is to propose a display system for a watch movement which is capable of undergoing an automatic reset, which is particularly suitable for said system for displaying the running time of a movement. watchmaker.
    DISCLOSURE OF THE INVENTION [0005] More specifically, the invention relates to a system for displaying the running time of a watch movement. This system comprises an input mobile intended to be driven by said movement, and a first display device of a first cyclic time division (such as the number of days, weeks or months of a year) arranged to be driven directly or indirectly via said mobile input.
    According to the invention, said system also comprises a second display device of a second division of time (such as months or years, that is to say representing the number of cycles of the first division of time) arranged to be driven at a rate of one step per complete cycle of said first time division, said running time being indicated by the sum of the indications of said first time division and said second time division, for example the years indicated by the second display device and the days of the current operating year indicated by the first display device.
    This arrangement allows the user to read, accurately, the running time of the movement, and possibly to schedule the services of his watch.
    Advantageously, said system is arranged such that, when said second display device is driven, said first display device is reset automatically via an automatic reset system. This arrangement makes it particularly possible to use a digital type display which requires a large jump of one or more of the display mobiles between the end of one cycle and the beginning of the next cycle (as for example the transition of a display of 365 to 000). The conventional display systems of the "big date" type are not well adapted to ensure the implementation of such displays.
    Advantageously, said first display device comprises at least one display mobile arranged to drive a display member, said display mobile comprising a reset cam associated with a reset hammer, said mobile display being arranged to be driven by a clutch having an engaged state and a disengaged state, said clutch kinematically connecting, in its engaged state, said mobile input and said display mobile directly or indirectly. Said reset system is also arranged to, during an automatic reset, disengage the clutch, then bring said hammer into contact with said reset cam.
    Such a disengagement system avoids the use of jumpers, which are energy hungry and require a high torque to overcome the effect of their spring. The energy consumption as well as the torque that must be provided to perform an automatic reset can therefore be reduced.
    Advantageously, said clutch comprises an intermediate mobile carried by a disengagement lever that moves between said engaged state and said disengaged state under the action of said hammer. In order to effect the disengagement, said hammer may comprise a control pad which is housed in a cam path located in said clutch rocker, said cam path being shaped to make said rocker switch between an engaged position and a disengaged position. following the movements of the hammer.
    Advantageously, the hammer is arranged in such a way that it can be controlled by a control wheel driven by a drive device. The driving of the control wheel can be carried out by means of a periodic energy storage device for kinematically connecting said control wheel and the base movement, for example by means of the input mobile above.
    Advantageously, the periodic energy storage device comprises an input wheel intended to present a kinematic connection with said watch movement (for example by means of the input mobile), an output wheel having a link kinematic with said control wheel and kinematically connected with said input wheel by an elastic member, and at least one locking system arranged to block the rotation of said output wheel and release periodically. A simple system that continuously stores energy and provides it to the reset system almost instantaneously is thus proposed. Said locking system is advantageously arranged to release the rotation of said output wheel under the control of a control pin, the latter being preferably carried by said input wheel.
    Advantageously, said locking system comprises a Maltese cross system comprising a Maltese cross cam secured to a rotation of a blocker, said cross cam deMalte being arranged to cooperate with said control pin and said blocker being arranged to cooperate with a locking pin that includes said output wheel to block and release the latter when the time comes. A simple and compact mechanism for the periodic release of the output wheel is thus proposed.
    [0015] Advantageously, said first display device comprises at least one self-locking gear. A system without a jumper is thus obtained, which reduces the energy consumption and the torque required during the reset display mobiles.
    As mentioned above, the automatic reset system is applicable more generally in a display system for a watch movement, such as a display system of a chronograph or a countdown mechanism. . This more generic display system according to the invention comprises an input mobile intended to be driven by said movement, at least one display mobile intended to drive at least one display member, said display mobile comprising a reset cam associated with a reset hammer, and a clutch having an engaged state and a disengaged state, said clutch kinematically connecting, in engaged state, said input mobile and said display mobile.
    According to the invention, said display system comprises an automatic reset system arranged to place automatically, that is to say without user intervention and following an event arising in the movement or in the display system itself, said clutch in its disengaged state and position said hammer in contact with said reset cam in response to a predefined event.
    An automatic reset of the display system controlled by the latter itself or by the movement is thus proposed. The fact that the clutch is disengaged avoids the use of friction, which reduces the need for torque so that the reset can be driven by the mechanism.
    Advantageously, said reset system is arranged to, during an automatic reset, disengage the clutch, then bring said hammer into contact with said reset cam, and then re-engage the clutch. and then moving said hammer away from said reset cam. This sequence minimizes the need for torque because each of these phases performs a single operation, and ensures that said at least one display unit is re-engaged before its reset cam is released by the hammer. . A good positioning of the mobile display after resetting is assured, and without jumping.
    Advantageously, said clutch comprises an intermediate mobile carried by a disengagement lever arranged to move between said engaged state and said disengaged state under the action of said hammer. Controlling the disengagement lever by means of the hammer ensures good synchronization between the movements of the hammer and those of said rocker. To do this, said hammer may comprise a control pad which takes place in a cam path located in said disengagement flip-flop, said cam path being shaped so as to make said flip-flop move between an engaged position and a disengaged position following displacements. hammer. A simple training is thus proposed.
    Advantageously, said hammer is arranged to be moved under the action of a control wheel driven by a driving device, said control wheel being driven preferably at the rate of one turn per actuation of the delivery system. automatic zero.
    Said driving device may comprise a periodic energy storage device for kinematically connecting said control wheel and said watch movement, for example by means of the input mobile submentioned. Such a periodic energy storage device can be continuously armed by the motion and discharged almost instantaneously to drive the automatic reset without overburdening the base motion.
    This periodic energy storage device advantageously comprises an input wheel intended to be in kinematic connection with said watch movement, an output wheel in kinematic connection with said control wheel and kinematically connected with said input wheel. by an elastic member, and at least one locking system arranged to block the rotation of said output wheel and release periodically.
    Advantageously, said locking system is arranged to release the rotation of said output wheel under the action of a control pin, the latter being preferably carried by said input wheel. The latter can be used not only to introduce energy into the energy storage device, but also to trigger the release of energy stored therein for driving the automatic reset system.
    This locking system comprises a Maltese cross system which may for example comprise a Maltese cross cam integral in rotation with a blocker, said cam malte cross being arranged to cooperate with said control pin and said blocker being arranged to cooperate with a locking pin that includes said output wheel.
    BRIEF DESCRIPTION OF THE DRAWINGS Further details of the invention will appear more clearly on reading the description which follows, made with reference to the appended drawings, in which:
    Fig. 1 is a perspective view on the dial side of the assembly of a display system according to the invention;
    Fig. 2 is a schematic diagram of the operation of the system of FIG. 1;
    Fig. 3 is a dial view of a first display device of the system of FIG. 1;
    Fig. 4 is a bottom perspective view of the display device of FIG. 3;
    Fig. 5 is a perspective view on the dial side of a second display device as well as a portion of the drive device of the system of FIG. 1;
    Fig. 6 is a bottom perspective view of the automatic reset system of the display system of FIG. 1;
    Fig. 7 is a perspective view from the bottom of a disengagement lever of the automatic reset system of FIG. 6;
    Fig. 8 is a perspective view on the dial side of some parts of the automatic reset system;
    Fig. 9 is a perspective view on the dial side of a detail of the drive device of the automatic reset system.
    Embodiment of the Invention [0027] FIG. 1 schematically shows the assembly of a display system 1 of the running time of a watch movement according to the invention, seen in perspective, on the dial side, and FIG. 2 shows a schematic diagram of the operation of the system 1. In view of the complexity of the drawings, only the reference signs mentioned in the context of a particular drawing will be indicated.
    The display system 1 comprises a drive system 3 driven by a movement M, in particular by an input mobile 11 secured to the wheel hours of movement M and making one turn per hour. The system 1 further comprises a first display device 5 driven through the drive system 3, which indicates the running time according to a first cyclical time division (in this case the 365 days of a year). ), as well as a second gait display 7, which indicates the running time according to a second division of time (in this case the complete years), also driven via the drive system 3. Alternatively, the second display device 7 can be driven via said first display device 5.
    The two display devices 5, 7 together indicate the full running time according to the sum of the two indications provided, here the number of days of the current operating year and the number of completed years of the march of the movement. Other time divisions are also possible, for example weeks, months, decades, centuries etc. or divisions according to non-Western calendars such as lunar months, or astronomical or even astrological cycles. The same principles of the above mechanism apply equally to these other time divisions, and those skilled in the art would have no problem in making the necessary modifications to implement them.
    Finally, the display system 1 also comprises an automatic reset system 9, also driven by the drive system 3, which serves to reset the first display device 5 when it comes from complete the display of a complete cycle of the first division of time and that the indication provided by the second display device 7 is increased by one step. Alternatively, the automatic reset system 9 can be driven by the first display device 5.
    Figures 3 and 4 illustrate in more detail the first display device 5 and a portion of the drive system 3, respectively seen on the dial side and bottom side.
    In the illustrated embodiment, the first display device 5 comprises three display members 13a, 13b, 13c constituted by disks bearing numbers representative of the units, tens and hundreds of days respectively. These display members are part of three display mobiles 15a, 15b, 15c, respectively, which are interconnected by intermediate mobiles 17b and 17c retractable forming clutches. The display mobile units 15a is also connected to a training mobile of the days 19 by still an intermediate mobile 17a retractable also forming a clutch. The fact that the intermediate mobiles 17a, 17b, 17c are retractable is not shown in Figures 3 and 4, and will flow from the description of Figures 6 and 7 below, in connection with their operation during the reset. of the first display device 5. The training mobile of the days 19 comprises a wheel 19a which meshes with the aforementioned movable entry 11, the gear ratio being chosen so that the training mobile of the days 19 performs a revolution in 24 hours, but other angular speeds of rotation of said mobile 19 are still possible, for example a turn in 2, 3, 4, 5 or 6 days, the necessary modifications to the gears and mobiles being within reach of the skilled person.
    In order to ensure the positioning of the display mobiles 15a, 15b, 15c outside the driving phases, the drive wheel 19 and the display mobiles 15a, 15b each form a self-locking gear with the mobile. respective intermediate 17a, 17b and 17c downstream of the display mobile 15a, 15b in question. This kind of self-locking gear, already known in JP 5320370, is formed of a substantially circular plate 21a, 21b, 21c mounted on the mobiles 19, 15a and 15b and superimposed on a corresponding drive toothing 23a, 23b, 23c comprising a pair of teeth aligned on either side of a notch 25a, 25b, 25c provided in the corresponding plate. The drive toothing 23a, 23b, 236 cooperates with a respective toothing 27a, 27b, 27c, which meshes with both a driven toothing 29a, 29b, 29c respectively provided on the mobile 15a, 15b, 15c, respectively. To avoid inadvertent rotation of the mobile 15a, 15b, 15c, each intermediate mobile 17a, 17b, 17c is provided with a locking toothing 31a, 31b, 31c superimposed on the respective toothing 27a, 27b, 27c. The locking teeth 31a, 31b, 31c each comprise half the number of teeth of the corresponding toothing 27a, 27b, 27c, the teeth of each locking toothing 31a, 31b, 31c being each superimposed on a corresponding tooth of the tooth. corresponding toothing 27a, 27b, 27c. One tooth out of two of each toothing 27a, 27b, 27c is superimposed on a tooth of the corresponding locking toothing 31a, 31b, 31c.
    The locking teeth 31a, 31b, 31c cooperate with the boards 21a, 21b, 21c, respectively, of the mobile upstream to prevent pivoting of the intermediate mobile 17a, 17b, 17c, and therefore the mobile 15a, 15b, 15c downstream, unless the notch 25a, 25b, 25c is at the locking toothing 31a, 31b, 31c. In this case, the corresponding drive gear 23a, 23b, 23c drives the respective intermediate wheel 17a, 17b, 17c downstream of the drive teeth 23a, 23b, 23c in question. It goes without saying that for other rotational speeds of the drive wheel of days 19, more notches 25a and drive teeth 23a regularly distributed around the mobile 19 may be provided according to the needs of man of career.
    Each of the display units of the day units 13a and tens of days 13b comprises 10 digits, from 0 to 9, and the display member hundreds of days 13c comprises the digits 0 to 3, because no indication greater than 365 is required in the variant shown. Therefore, for each turn of the mobile units of days 13a, the corresponding drive gear 23b causes the mobile tens of days 13b at a rate of one. Similarly, each turn of the latter mobile 13b causes the mobile hundreds of days 13c also one step.
    The advantage of this kind of self-locking gear is that, compared to a jumper, it is not greedy energy. A jumper, on the other hand, is associated with an elastic element which must be deformed in order to index the corresponding mobile, which requires a high torque and a higher energy consumption. In principle, jumpers could be used instead of self-locking gears, but such a solution would have the disadvantages just mentioned.
    The specific form of self-locking gear is not limiting, and several other types of such gear are known from the prior art, for example a link incorporating a gear of Maltese cross.
    FIG. 5 illustrates in detail the second display device 7 and a portion of the drive device 3, seen on the dial side. In the present case, the second display device 7 comprises three display members 33a, 33b, 33c, each comprising a disk bearing figures representative respectively of units, tens and hundreds of years. These display members are part of three display mobiles 35a, 35b, 35c, respectively, which are interconnected by intermediate mobiles 37b and 37c non-retractable. The intermediate mobiles 37a, 37b and 37c must not be retractable in the illustrated embodiment, since no reset of the display of the years is provided. The display mobile 35a is driven at a rate of one per year by a training mobile 39 years, via an intermediate mobile 37a. The training wheel 39 years is itself driven at a rate of one turn per year by the input mobile 11, through a gear reducer 41, while other rotational speeds are also possible, as is the case for the first display device 5.
    The training mobile 39 years is built similarly to the training mobile of days 19, and should not be described in more detail. Furthermore, the intermediate mobiles 37a, 37b, 37c as well as the mobiles 35a, 35b, 35c are also constructed analogously to their equivalents 17a, 17b, 17c and 15a, 15b, 15c respectively, and thus operate in a similar manner.
    As mentioned above, at the end of a year of movement, the second display device 7 is indexed by one step, and the first display device 5 is automatically reset to zero. intermediate of the automatic reset system 9, a part of which is illustrated in FIG. 6.
    This figure illustrates a portion of the first display device 5 and part of the automatic reset system 9, viewed from the bottom, in the reset position.
    Similarly to a chronograph mechanism, each display unit 15a, 15b, 15c that includes the first display system 5 also has a respective reset cam 43a, 43b, 43c, integral in rotation with other components of the corresponding mobile. In order to allow the resetting of these mobiles 15a, 15b, 15c, a hammer 45 is provided. This hammer 45 comprises three hammer heads, 45a, 45b, 45c, each intended to contact a reset cam, 43a, 43b, 43c, respectively, in a known manner. The hammer heads 45a, 45b, 45c are connected to the rest of the hammer 5 in a flexible manner, by means of elastic elements 47, in order to dampen shocks during the reset and to compensate for any positional shifts. between the three reset cams 43a, 43b, 43c and the hammer 45.
    Furthermore, the hammer 45 is arranged such that it is capable of evolving in linear translation between a rest position and a reset position (as illustrated in Fig. 6). For this purpose, the hammer 45 comprises a pair of straight guide slots 49a, 49b, each cooperating with a corresponding pad 51a, 51b, integral with the movement frame (not shown). In order to actuate the hammer, a control wheel 53, the drive of which is described below, comprises a stud 53a which takes place in a curved slot 55 (better visible in FIG 8), acting as a cam path, shaped so that, for a complete turn of the control wheel 53, the hammer 45 performs a complete translation cycle, from its rest position to its reset position and returns once again to its position of rest.
    Since the mobiles 15a, 15b, 15c are interconnected via gears which form self-locking gears, the reset system 9 is arranged to disengage the intermediate wheels so that each of the mobiles 15a, 15b, 15c can rotate independently during the reset.
    To enable their disengagement, the intermediate mobiles 17a, 17b, 17c are each mounted on a disengagement rocker 57a, 57b, 57c pivoting about the axis of rotation of the display mobile 15a, 15b, 15c downstream, that is to say, the display mobile driven by the intermediate mobile 17a, 17b, 17c corresponding. Each release lever 57a, 57b, 57c is controlled by a respective control pad 61a, 61b, 61c, integral with the hammer 45, as will follow from the description which follows.
    FIG. 7 shows one of these disengagement flip-flops in more detail, in particular the disengagement flip-flop 57c, which is pivotally mounted about an axis of rotation 59 of the display cell 15c associated with the hundreds of days. This pivoting takes place against a return spring 63c, which tends to pivot the rocker 57c in the counterclockwise direction (according to the orientation of Figures 6 and 7) and thus to maintain the intermediate mobile 17c in the engaged position with the display mobile 15b upstream.
    During a reset, the control wheel 53 performs a complete revolution, which causes the hammer 45 to move linearly in one direction and then in the other. The control pad 61c therefore moves back and forth, as indicated by the arrow in FIG. 7. The control pad 61c takes place in an opening 65c provided with a swinging finger 67c, the latter being biased to pivot in the direction of the intermediate member 17c by means of an elastic member 75c and a pin 71c in order to form a trapezoidal cam track 69c. The latter is divided into four sections 73a, 73b, 73c, 73d, which provide the following sequence of events during a reset: [0048] In the first place, during the movement of the control pad 61c according to its first sense translationally, the latter traverses the first section 73a of the cam path 69c, which is shaped to urge the rotation of the disengagement rocker 57c in the clockwise direction, thereby moving the intermediate mobile 17c 15b up display mobile. The display mobile 15c is thus disengaged from the mobile 15b, and is free to rotate. Then, the control pad 61c traverses the second section 73b of the cam path 69c. This section 73b aligns with the direction of translation of the control pad 61c when the latter is in this section. The disengagement rocker 57c therefore maintains its angular position while the hammer 45 continues its course, and the hammer heads 45a, 45b, 45c subsequently come into contact with the associated resetting cams 43a, 43b, 43c. At the end of the movement of the control pad 61c in the first direction, the latter is in the distal corner 73e of the cam path 69c. When the hammer 45 begins to move back to its starting position, the stud 61c traverses the fourth section 73d of the cam path 69c, shaped so as to let the clutch lever 57c return to the starting position under the effect of the return spring 63c before the hammer heads 45a, 45b, 45c are out of contact with the corresponding reset cams 43a, 43b, 43c, 43d. The intermediate mobile 17c is thus re-engaged with the display mobile 15b upstream, and then the reset cams 43a, 43b, 43c are released. At the end of its stroke in the fourth section 73d of the cam path 69c, the tilting finger 67c retracts by opposing the action of its spring 75c so as to let the control pad 61c to the beginning of the first section 73a of the cam path 69c.
    权利要求:
    Claims (21)
    [1]
    The other clutch rockers 57a, 57b associated with other display mobiles 15a, 15b, respectively, operate in the same way, and their geometries and the shape of their return springs 63a, 63b are chosen so appropriate. Alternatively, this clutch system can be substituted by friction, in known manner, which however generates a higher energy consumption and torque demand. FIG. 8 illustrates certain parts of the automatic reset system 9, seen on the dial side, in particular the drive device 77 of the control wheel 53, arranged in such a way that the latter rapidly makes a complete revolution at the end of each year. operation of the movement to reset the first display device 5 to zero after a cycle of 365 days. In general, this kind of automatic reset system removes associated display mobiles to zero without user intervention and therefore under the control of the movement or the display system itself. In the illustrated embodiment, this event is the end of the indication of a 365-day cycle. This drive device 77 is driven by means of a wheel 79, in kinematic connection with the input wheel 11 (see FIG 1) via an intermediate gear so that the wheel 79 performs one revolution per year continuously. This wheel causes a periodic energy storage device 81, better visible in FIG. 9, seen side bottom. The periodic energy storage device 81 comprises an input wheel 83, permanently driven by the wheel 79, which is kinematically linked to an output wheel 85 via a spring element (not shown). ), similarly to a cylinder. The output wheel 85 is prevented from turning unexpectedly by a pair of Maltese cross systems 87a, 87b, which cooperate in a known manner with a common board 89, integral in rotation with said input wheel 83. Malta serve as blocking systems, as will become clearer from further explanations. When the input wheel 83 rotates, the spring member is continuously armed when the output wheel 85 is locked. In order to effect this blocking, each Maltese cross system 87a, 87b comprises a respective blocker 91a, 91b, integral in rotation with the respective Maltese cross cam 93a, 93b. These blockers 91a, 91b cooperate with a locking pin 95 carried by the output wheel 85, said pin 95 being biased to bear against one of the blockers, the latter having the shape of a lobed cam. These lobes act as stops to lock said pin 95, and the number of lobes corresponds to the number of steps that makes the cam Malta cross 93a, 93b per turn (four in this case). These Maltese cross systems are driven one at a time by the passage of a control pin 97 carried by the input wheel 83, which cooperates with the slots of the cross cams of Malta 93a, 93b . With each passage of the control pin 97, the corresponding Maltese cross 87a, 87b system takes a step, the corresponding blocker 91a, 91b releases the locking pin 95, and the output wheel 85 is therefore free to rotate with one-half turn until the locking pin 95 contacts one lobe of the other blocker 91b, 91a. In doing so, the spring is unwound in order to supply energy to the control wheel 53 via an intermediate gear 99 whose gears are selected so that the control wheel 53 performs a complete revolution. . It is also possible to use only one system of Malta cross 87a; 87b, the form of the blocker 91a; 91b being adapted accordingly. Moreover, other locking systems than Maltese cross systems are also conceivable. In order to slow down the rotation of the control wheel 53 and thus to avoid damage to the mechanism due to accelerations and significant forces, a speed controller 101 is provided, kinematically connected to the intermediate gear 99 by a gear train multiplier 103. In the variant shown, the speed controller 101 is a finned mobile, but a flywheel can also be used. It should be noted that the automatic reset system 9 can also be used in another context, such as a chronograph or a countdown system, and is therefore not limited to the illustrated use. . For example, it could be used to reset chronograph display or countdown displays after a period of inactivity has elapsed, and may be associated with any number of display mobiles. 15a, 15b, 15c, for example one, two, four or even more. Although the invention has been described above in connection with specific embodiments, additional variants are also conceivable without departing from the scope of the invention as defined by the claims. claims
    1. System (1) for displaying the running time of a clockwork movement (M) comprising: - an input mobile (11) intended to be driven by said movement; a first display device (5) of a first cyclic time division arranged to be driven via said input mobile (11); characterized in that said system (1) further comprises a second display device (7) of a second time division arranged to be driven one step per complete cycle of said first time division, said running time being indicated by the sum of the indication of said first time division and the indication of said second time division.
    [2]
    2. System (1) according to the preceding claim, wherein said first time division corresponds to days, and said second time division corresponds to years.
    [3]
    3. System (1) according to one of the preceding claims, wherein said system (1) is arranged such that, when said second display system (7) is driven, said first display system (5) is reset automatically via an automatic reset system (9).
    [4]
    4. System (1) according to the preceding claim, wherein said first display device (5) comprises at least one display mobile (15a, 15b, 15c) arranged to drive a display member (13a; 13b; 13c), said display unit (15a; 15b; 15c) comprising a reset cam (43a; 43b; 43c) associated with a reset hammer (45), said display unit (15a; 15b); 15c) being arranged to be driven by a clutch (17a, 57a; 17b, 57b; 17c, 57c) having an engaged state and a disengaged state, said clutch kinematically connecting, in its engaged state, said input mobile (11); ) and said display unit (15a; 15b; 15c), said reset system (9) being arranged for, during an automatic reset, disengaging the clutch (17a, 57a; 17b, 57b; 17c, 57c), and bringing said hammer (45) into contact with said reset cam (43a; 43b; 43c).
    [5]
    5. System (1) according to claim 4, wherein said clutch (17a, 57a; 17b, 57b; 17c, 57c) comprises an intermediate mobile (17a; 17b; 17c) carried by a disengagement lever (57a; 57b; 57c) arranged to evolve between said engaged state and said disengaged state under the effect of the action of said hammer (45).
    [6]
    6. System (1) according to the preceding claim, wherein said hammer (45) comprises at least one control pad (61a; 61b; 61c) housed in a cam path (69a; 69b; 69c) located in said flip-flop. clutch (57a; 57b; 57c), said cam path (69a; 69b; 69c) being shaped to be able to move said latch (57a; 57b; 57c) between an engaged position and a disengaged position following movements of said hammer (45).
    [7]
    7. System (1) according to one of claims 4 to 6, wherein said hammer (45) is arranged to be moved under the effect of the action of a control wheel (53) arranged to be driven by a driving device (77).
    [8]
    8. System (1) according to the preceding claim, wherein said drive device (77) comprises a periodic energy storage device (81) for kinematically connecting said control wheel (53) and said watch movement (M ).
    [9]
    9. System (1) according to the preceding claim, wherein the periodic energy storage device (81) comprises: - an input wheel (83) intended to have a kinematic connection with said watch movement (M), an output wheel (85) kinematically connected to said control wheel (53) and kinematically connected to said input wheel (83) by an elastic member; at least one locking system (87a, 87b) arranged to block the rotation of said output wheel (85) and to release it periodically.
    [10]
    10. System (1) according to the preceding claim, wherein said locking system (87a; 87b) is arranged to release the rotation of said output wheel (85) under the effect of the action of a control pin. (97), the latter being preferably carried by said input wheel (83).
    [11]
    11. System (1) according to the preceding claim, wherein said locking system (87a; 87b) comprises a Maltese cross system comprising a Maltese cross cam (93a; 93b) integral in rotation with a blocker (91a). 91b), said Maltese cross cam (93a; 93b) being arranged to cooperate with said control pin (97) and said blocker being arranged to cooperate with a locking pin (95) that includes said output wheel (85 ) to block and be able to release the latter.
    [12]
    System (1) according to one of the preceding claims, wherein said first display device (5) comprises a self-locking gear (21a, 23a, 25a, 27a, 29a, 31a, 23b, 25b, 27b, 29b, 31b; 23c, 25c, 27c, 29c, 31c).
    [13]
    13. System (1) for displaying a watch movement (M) comprising: - an input mobile (11) intended to be driven by said movement (M); at least one display unit (15a; 15b; 15c) for driving at least one display member (13a; 13b; 13c), said display unit (15a; 15b; 15c) comprising a delivery cam; at zero (43a, 43b, 43c) associated with a reset hammer (45), - at least one clutch (17a, 57a; 17b, 57b; 17c, 57c) having an engaged state and a disengaged state, said clutch (17a, 57a, 17b, 57b, 17c, 57c) kinematically connecting, in its engaged state, said input mobile (11) and said display mobile (15a; 15b; 15c); characterized in that said display system (1) comprises an automatic reset system (9) arranged to automatically bring said clutch (17a, 57a; 17b, 57b; 17c, 57c) into its disengaged state and bring said hammer (45) in contact with said reset cam (43a; 43b; 43c) in response to a predefined event.
    [14]
    14. System (1) according to the preceding claim, wherein said reset system (9) is arranged for, during an automatic reset, bring the clutch (17a, 57a; 17b, 57b; 17c, 57c) in its disengaged state, then bringing said hammer (45) into contact with said reset cam (43a; 43b; 43c), then returning the clutch (17a, 57a; 17b, 57b; 17c, 57c); in its engaged state, then moving said hammer (45) away from said reset cam (43a; 43b; 43c).
    [15]
    15. System (1) according to one of claims 13 or 14, wherein said clutch (17a, 57a; 17b, 57b; 17c, 57c) comprises an intermediate mobile (17a; 17b; 17c) carried by a disengagement rocker (57a, 57b, 57c) arranged to move between said engaged state and said disengaged state under the effect of the action of said hammer (45).
    [16]
    16. System (1) according to the preceding claim, wherein said hammer (45) comprises a control pad (61a; 61b; 61c) which is housed in a cam path (69a; 69b; 69c) located in said latch disengaging (57a; 57b; 57c), said cam path (69a; 69b; 69c) being shaped to be able to cause said disengagement lever (57a; 57b; 57c) to move between an engaged position and a disengaged position following displacements of the hammer (45).
    [17]
    17. System (1) according to one of claims 13 to 16, wherein said hammer (45) is arranged to be movable under the effect of the action of a control wheel (53) driven by a device drive (77).
    [18]
    18. System (1) according to the preceding claim, wherein said drive device (77) comprises a periodic energy storage device (81) for kinematically connecting said control wheel (53) and said watch movement (M ).
    [19]
    19. System (1) according to the preceding claim, wherein the periodic energy storage device (81) comprises: - an input wheel (83) intended to be in kinematic connection with said watch movement (M), an output wheel (85) kinematically connected to said control wheel (53) and kinematically connected with said input wheel (83) by an elastic member; at least one locking system (87a, 87b) arranged to block the rotation of said output wheel (85) and to release it periodically.
    [20]
    20. System (1) according to the preceding claim, wherein said locking system (87a, 87b) is arranged to release the rotation of said output wheel (85) under the effect of the action of a control pin. (87), the latter being preferably carried by said input wheel (83).
    [21]
    21. System (1) according to the preceding claim, wherein said locking system (87a; 87b) comprises a Maltese cross system comprising a Maltese cross cam (93a; 93b) integral in rotation with a blocker (91a). 91b), said malted cross cam (93a; 93b) being arranged to cooperate with said control pin (97) and said blocker (91a; 91b) being arranged to cooperate with a locking pin (95) that includes said output wheel (85) to block it and release it.
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    同族专利:
    公开号 | 公开日
    CH712309B1|2020-05-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP3904964A1|2020-05-01|2021-11-03|Rolex Sa|Device for displaying a time or time-derived indication and device for indexing|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH00418/16A|CH712309B1|2016-03-30|2016-03-30|Display system for the running time of a watch movement.|CH00418/16A| CH712309B1|2016-03-30|2016-03-30|Display system for the running time of a watch movement.|
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