Abstract
A device for adjusting horological functions of a timepiece, including a mechanism for selection and actuation, comprising: a drive driving a driving pinion in the clockwise and anti-clockwise directions, a driven pinion driven when the driving pinion turns clockwise and anti-clockwise, said driven pinion moving into a first position by the driving pinion turning clockwise, in which said driven pinion actuates an actuator of a first horological function, and moving into a second position by the driving pinion turning anti-clockwise, in which second position, said driven pinion actuates an actuator of a second horological function, said driven pinion not actuating the actuator of the first horological function when it is in its second position, and vice versa. The mechanism for selection and actuation comprises at least two driven pinions, and the adjusting device comprises a control mechanism selectively bringing the driving pinion into engagement with each of the driven pinions.
Claims
1. A device for adjusting horological functions of a timepiece, comprising: the device equipped with a mechanism for selection and actuation that includes: a drive mechanism, a driving pinion, said drive means being configured to drive said driving pinion in a clockwise direction and in an anti-clockwise direction, at least one driven pinion adapted to be driven by said driving pinion when the driving pinion turns in the clockwise direction and when said driving pinion turns in the anti-clockwise direction, said driven pinion being configured to move into a first position under the effect of the driving pinion when this turns in the clockwise direction, in which first position said driven pinion actuates a first actuating mechanism of a first horological function, and to move into a second position under the effect of the driving pinion when this turns in the anti-clockwise direction, in which second position said driven pinion actuates a second actuating mechanism of a second horological function, said driven pinion not actuating the actuating means of the first horological function when it is in its said second position and, vice versa, said driven pinion not actuating the second actuating mechanism of the second horological function when it is in its said first position, wherein said mechanism for selection and actuation comprises at least two driven pinions, and the adjusting device furthermore comprises a control mechanism adapted to selectively bring the driving pinion to mesh with each of said driven pinions.
2. The adjusting device according to claim 1, wherein said mechanism for selection and actuation comprises two driven pinions, and said control mechanism is configured to alternately bring the driving pinion, by translation, into contact with each of the two driven pinions.
3. The adjusting device according to claim 2, wherein the driving pinion is a sliding pinion, the axis of which comprises a pin housed in an oblong housing formed in a plate, in a manner such as to be able to slide perpendicularly to said axis, said control mechanism controlling sliding of the pin in said housing.
4. The adjusting device according to claim 3, wherein respective ends of the oblong housing of the axis of the driving pinion are arranged in a manner such as to allow effective engagement respectively with each of the driven pinions in each of said first and second positions of said driven pinions.
5. The adjusting device according claim 2, wherein the control device comprises an assembly constituted by a yoke controlled by a wig-wag and a control lever, said assembly being mounted on said plate.
6. The adjusting device according to claim 1 wherein said mechanism for selection and actuation further includes a number of driven pinions which is greater than or equal to two, the control mechanism comprises a rotary arm on which the driving pinion is arranged, and said control mechanism is configured to bring said driving pinion into the meshing position with each of the driven pinions by successive rotation.
7. The adjusting device according to claim 6, wherein the control mechanism comprises an assembly formed by a star which is coaxial with the axis of articulation of said rotary arm, by a jumper, and by a spring yoke cooperating with said star, a rotation of the star through an angular value corresponding to one branch of the star bringing the driving pinion from a meshing position with a driven pinion into a meshing position with the adjacent driven pinion.
8. The adjusting device according to claim 6, the driving pinion is kinematically connected to its drive means via a setting wheel which is coaxial with the axis of articulation of said rotary arm.
9. The adjusting device according to claim 1, wherein said driven pinion is constituted by a sliding pinion which is capable of sliding perpendicularly to its axis of rotation, in a manner such that the driven pinion moves into said first position under an effect of rotation of the driving pinion in the clockwise direction and that the driven pinion moves into said second position under an effect of rotation of the driving pinion in the anti-clockwise direction.
10. The adjusting device according to claim 9, wherein said driven pinion is a sliding pinion the axis of which comprises a pin fixed to the driven pinion and housed in an oblong housing formed in a plate, in a manner such that said pin is capable of sliding perpendicularly to said axis, said housing being disposed in a manner such that the pin of the driven pinion moves to a first end of the oblong housing under the effect of rotation of the driving pinion in the clockwise direction, the driven pinion therefore being located in said first position, and that the pin moves to the other end of the oblong housing under the effect of rotation of the driving pinion in the anti-clockwise direction, the driven pinion therefore being located in said second position.
11. The adjusting device according to claim 9, wherein said driven pinion is a sliding pinion the axis of which comprises an eccentric fixed to a plate and comprising two opposed circular arcs, the pinion comprising a ring having external teeth and a circular internal periphery which is capable of alternately coming into contact with one of the two opposed circular arcs of said eccentric, in a manner such that said ring can slide perpendicularly to said axis, such that the circular internal periphery of the ring comprising the driven pinion comes into contact with the first circular arc of the eccentric under the effect of rotation of the driving pinion in the clockwise direction, the driven pinion therefore being in said first position, and that the circular internal periphery of the ring comprising the driven pinion comes into contact with the second circular arc of the eccentric under the effect of rotation of the driving pinion in the anti-clockwise direction, the driven pinion therefore being located in said second position.
12. The adjusting device according to claim 9, wherein the driven pinion carries teeth adapted to mesh with the teeth of the driving pinion, and carries a coaxial mobile the teeth or respectively a finger of which is/are adapted to cooperate with teeth, or respectively an actuating mechanism, of a horological function.
13. The adjusting device according to claim 1, wherein the driving pinion is kinematically connected via setting wheels, with a winding and/or adjusting crown of the timepiece.
14. A timepiece, comprising the device for adjusting horological functions according to claim 1.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0037] The accompanying drawings diagrammatically represent, by way of example, two embodiments of the invention.
[0038] FIG. 1a shows a top plan view of a first embodiment of an adjusting device in accordance with the present invention allowing for adjusting four horological functions; FIG. 1b shows a bottom plan view of the adjusting device of FIG. 1a.
[0039] FIG. 2a shows a perspective top view of the device of FIG. 1a; FIG. 2b is a perspective bottom view of the device illustrated in FIG. 2a.
[0040] FIG. 3a is a top plan view of an adjusting device in accordance with FIG. 1a after actuating the control device; FIG. 3b is a top plan view of an adjusting device in accordance with FIG. 3a after reversing the direction of rotation of the drive means.
[0041] FIG. 4a shows a top plan view of an alternative arrangement of the driven pinions of an adjusting device in accordance with the present invention; FIG. 4b shows a perspective top view of the driven pinion of FIG. 4a.
[0042] FIG. 5a shows a top plan view of a second embodiment of an adjusting device in accordance with the present invention allowing to adjust twelve horological functions; FIG. 5b shows a bottom plan view of the adjusting device of FIG. 5a.
[0043] FIG. 6a represents a top perspective view of the device of FIG. 5a; FIG. 6b is a bottom perspective view of the device illustrated in FIG. 5b.
[0044] FIG. 7a is a top plan view of an adjusting device in accordance with FIG. 5a being driven; FIG. 7b is a top plan view of an adjusting device in accordance with FIG. 7a after reversing the direction of drive.
DETAILED DESCRIPTION OF THE INVENTION
[0045] FIGS. 1a to 3b illustrate a first adjusting device comprising a mechanism for selecting and actuating a function from among four available functions, for example in the context of a display correction device. This mechanism comprises a drive setting wheel 9 which is capable of transmitting a rotational movement to a driving pinion 1 in the clockwise direction and in the anti-clockwise direction, at one's discretion. The axis of the driving pinion 1, which may simply be produced in the form of a pin, may be housed in an oblong slot of a plate or a bridge, not shown in the figures, the ends of which define a first and a second end position of the axis of the driving pinion 1, in a manner such that the driving pinion 1 is a sliding pinion which remains capable of being driven in rotation in these two positions by the setting wheel 9, both in the clockwise direction and in the anti-clockwise direction. The oblong slot in said plate is indicated symbolically as dotted lines in FIGS. 1a and 1b as well as in FIGS. 3a and 3b. Alternatively, the axis of the driving pinion 1 may simply be arranged on the control device described below, this latter permitting the axis of the driving pinion 1 to be positioned in its first and second end positions. At either side of the driving pinion 1, which for this reason is in a central position, are two lateral pinions 2 and 3, in a manner such that the central pinion can be moved sufficiently close, in its first or in its second end position, to the one or to the other of the lateral pinions 2, 3 in order to form a kinematic connection between the central pinion 1 and the one or the other of the lateral pinions 2, 3 which alternately become a driven pinion.
[0046] The axes of each of the two lateral pinions 2, 3, which may be constituted by a pin, may also be housed in two respective oblong housings formed in the plate, arranged in a manner such that the pin of the lateral pinion 2, respectively of the lateral pinion 3, kinematically connected with the driving pinion 1, moves to a first end of its oblong housing under the effect of the tangential force resulting from rotation of the driving pinion 1 in the clockwise direction, the driven pinion 2, respectively the driven pinion 3, thus being in a first drive position, and the pin of this lateral driven pinion 2, respectively of the lateral pinion 3, moves to the other end of its oblong housing under the effect of the tangential force resulting from rotation of the driving pinion 1 in the anti-clockwise direction, the driven pinion 2, respectively the driven pinion 3, therefore being in a second drive position. FIGS. 3a and 3b illustrate this mechanism by showing the lateral pinion 2, driven by the central pinion 1, respectively into the first and into the second drive position of said lateral pinion 2, depending on whether the central pinion 1, which has been kinematically connected to the lateral pinion 2 by the control device described below, turns in the clockwise direction or in the anti-clockwise direction. The oblong housings in said plate housing the axes of the two lateral pinions 2, 3 are symbolically indicated by dotted lines in FIGS. 1a and 1b and in FIGS. 3a and 3b and are orientated substantially perpendicularly to the oblong slot in said plate housing the axis of the driving pinion 1. Alternatively, the driven pinions 2, 3 could each be constituted by a ring with external teeth and a circular internal periphery 2d, 3d, the axes of these driven pinions 2, 3 in this case possibly each being constituted by an eccentric 2a, 3a fixed to said plate and comprising two opposed circular arcs 2b, 2c, 3b, 3c in a manner such that each of these arcs 2b, 2c, 3b, 3c can come into contact with said circular internal periphery 2d, 3d of the corresponding driven ring 2,3 depending on whether the central pinion 1 brought into kinematic connection with the ring 2, 3 turns in the clockwise direction or in the anti-clockwise direction. This alternative configuration, in which the axes of the driven pinions 2, 3 are not fixed to the pinions but to the plate, is illustrated diagrammatically in FIGS. 4a and 4b. Independently of the specific embodiment of the driven pinions 2, 3, a friction spring 10 comprising lateral arms bearing on the surface of the driven pinions 2, 3 is disposed on said plate in order to secure the driven pinions 2, 3 in their respective axial positions, in a manner such as to ensure the operation of the adjusting device independently of the position in space of the corresponding timepiece.
[0047] An actuating means A of a first horological function indicated and an actuating means B of a second horological function are diagrammatically in FIGS. 3a and 3b, these means A, B being disposed either side of the driven pinion 2 in a manner such as to be able to mesh alternately with the latter as a function of the position of this driven pinion 2. In fact, as can be seen in these two FIGS. 3a and 3b, the driven pinion 2 is configured to move into a first position under the effect of the driving pinion 1 when this turns in the clockwise direction, in which first position said driven pinion 2 actuates the actuating means A of the first horological function, and to move into a second position under the effect of the driving pinion 1 when this turns in the clockwise direction, in which second position said driven pinion 2 actuates the actuating means B of the second horological function. Said driven pinion 2 does not actuate the actuating means A of the first horological function when it is in its second position and, vice versa, said driven pinion 2 does not actuate the actuating means B of the second horological function when it is in its first position. In analogous manner, the actuating means of a third horological function and an actuating means of a fourth horological function, not illustrated in FIGS. 3a and 3b, are disposed either side of the driven pinion 3, these means possibly alternately meshing with this driven pinion 3 as a function of its position, when the driving pinion 1 is in the meshed position with this driven pinion 3 and as a function of the clockwise or anti-clockwise direction of rotation of the driving pinion 1.
[0048] The structure of the actuating means A and B is determined by the constitution of the parts forming the corresponding horological functions. The driven pinion 2, respectively 3, on the one hand, carries teeth adapted to mesh with the teeth of the driving pinion 1, and on the other hand carries a coaxial mobile including teeth, or respectively a finger, adapted to cooperate with teeth, respectively the actuating means A, B, of the corresponding horological function. Purely by way of illustrative example, FIG. 2b shows a driven pinion 2 carrying a coaxial mobile constituted by four fingers 11 which can interact with internal teeth of a disk of the corresponding horological function, for example with the internal teeth of a date disk.
[0049] In summary, the mechanism described above comprises three pivoting sliding pinions, two of which preferably being housed in a corresponding oblong housing or formed by rings mounted about an eccentric axis, one of the three pinions, the central pinion 1, being housed in a manner such that it can selectively approach one of the two other lateral pinions 2, 3, by translation, using a control device as described below. A setting wheel 9 acts to drive the central pinion 1, this setting wheel itself being driven, for example with the aid of a winding and correction crown (not shown in the figures). The central pinion 1, which is therefore the driving pinion, can therefore transmit a rotational movement to the selected lateral pinion and, moreover, cause a translation of the selected lateral pinion towards one or the other of the ends of its oblong housing, or respectively, by generalizing, towards its firstor second driving position, this being a function of the direction of rotation of the central pinion, in a manner such that, depending on the direction of rotation, the selected lateral pinion selectively actuates one or the other of the horological functions that can be adjusted by the lateral pinion.
[0050] In accordance with the embodiment shown in FIGS. 1a to 3b, the control device is an assembly constituted by a yoke 4 controlled by a wig-wag 6 and a control lever 7, said assembly being mounted on the plate. The wig-wag 6 is prestressed by a wig-wag spring 8. The yoke 4 is locked with the aid of a yoke jumper 5 and a lug of the control lever 7. If the axis of the driving pinion 1 is produced in the form of a pin housed in an oblong slot in the plate, a U-shaped recess in the yoke accommodates one end of the axis of the driving pinion 1, in a manner such that swivelling of the yoke 4 following an actuation of the control lever 7 causes the axis of the pinion 1 to pass from one to the other of its two end positions in said oblong slot. If the axis of the driving pinion 1 is mounted on the yoke 4, the displacement thereof directly defines the end positions of the axis of the driving pinion 1. When the selection device in accordance with the invention is integrated into a timepiece, the user can control the position of the yoke 4 by means of a pusher symbolically indicated by an arrow in FIGS. 3a and 3b and enabling the control lever 7 to be actuated, and can modify the direction of rotation of the sliding pinion 1 by means of a crown actuating a stem, for example the winding stem, which can act on the setting wheel 9. Starting from the state of the adjusting device shown in FIG. 1a, for example, the user accesses the state of this device shown in FIG. 3a by acting on the control lever 7, i.e. by actuating said pusher, then changing the horological function actuated as shown in FIG. 3b by reversing the direction of rotation of the setting wheel 9, i.e. by turning the winding stem in the other direction.
[0051] FIGS. 5a to 7b illustrate a second adjusting device comprising a mechanism for selecting and actuating one function out of twelve available functions. This device is mounted on a plate 110 which may be, but does not necessarily have to be, in the form of a disk. Its mechanism comprises a drive setting wheel 109 which is capable of transmitting a movement of rotation to a driving pinion 101 in the clockwise direction and in the anti-clockwise direction at one's discretion. In the embodiment shown in the figures, the setting wheel 109 is mounted freely in rotation on one side of the plate 110, while the other parts, in particular an intermediate setting wheel 109a which is fixedly attached to the setting wheel 109 and coaxial therewith, are arranged on the other side of the plate 110. The axis of the driving pinion 101 (not visible in the figures) is housed in a rotary arm 112 the axis of articulation of which is preferably coaxial with the setting wheel 109a. Six angularly equidistant lateral pinions are arranged on the periphery of the plate 110. In the remainder of this description, only two of them, 102 and 103, will be described in detail, because this description applies mutatis mutandis to the four other pinions, the number of which may, furthermore, differ. The driving pinion 101 may be brought sufficiently closely to one or the other of the lateral pinions 102, 103 to form a kinematic connection between the central pinion 101 and either one or the other of the lateral pinions 102, 103, which each alternately become a driven pinion.
[0052] The axis of each of the lateral pinions 102, 103, which may be constituted by a pin, may be housed in an oblong housing constituted by a slot formed in the plate 110, the six oblong housings being disposed tangentially to a circle which is coaxial with the axis of articulation of said rotary arm 112 carrying the driving pinion 101 and, as can be seen in particular in FIGS. 7a and 7b, arranged in a manner such that the pin of the lateral pinion 102 kinematically connected to the driving pinion 101 moves to a first end of its oblong housing under the effect of rotation of the driving pinion 101 in the clockwise direction, the driven pinion 102 therefore being in a first position, and such that the pin of this lateral driven pinion 102 moves to the other end of its oblong housing under the effect of rotation of the driving pinion 101 in the anti-clockwise direction, the driven pinion 102 therefore being in said second position. FIGS. 7a and 7b illustrate this mechanism by showing the lateral pinion 102, driven by the central pinion 101, respectively in the first and in the second position of said lateral pinion 102, depending on whether the central pinion 101 brought into kinematic connection with the lateral pinion 102 by the control device described below, turns in the clockwise direction or in the anti-clockwise direction. Alternatively, and in a manner analogous to the corresponding discussions concerning the first adjusting device illustrated in FIGS. 1a to 3b, the driven pinions 102, 103 of the second adjusting device illustrated in FIGS. 5a to 7b could each be constituted by a ring having external teeth and a circular internal periphery, the axes of these driven pinions 102, 103 in this case possibly each being constituted by an eccentric fixed to said plate 110 and comprising two opposed circular arcs as illustrated in FIGS. 4a and 4b, in a manner such that each of these circular arcs can come into contact with said circular internal periphery of the corresponding driven ring 102, 103 depending on whether the central pinion 101 brought into kinematic connection with the ring 102, 103 turns in the clockwise direction or in the anti-clockwise direction. Similarly, a friction spring 116 comprising lateral arms bearing on the surface of the driven pinions 102, 103 is disposed on said plate 110 in order to secure the driven pinions 102, 103 in their respective axial positions, in a manner such that the operation of the adjusting device is ensured independently of the position in space of the corresponding timepiece.
[0053] An actuating means A of a first horological function and an actuating means B of a second horological function are indicated diagrammatically in FIGS. 7a and 7b, these means A, B being disposed either side of the driven pinion 102 in a manner such that it can mesh alternately with the latter as a function of the position of this driven pinion 102. As can be seen in these two FIGS. 7a and 7b, the driven pinion 102 is configured to move into the first position under the effect of the driving pinion 101 when it turns in the clockwise direction, in which first position said driven pinion 102 actuates the actuating means A of the first horological function, and to move into the second position under the effect of the driving pinion 101 when it turns in the anti-clockwise direction, in which second position said driven pinion 102 actuates the actuating means B of the second horological function. Said driven pinion 102 does not actuate the actuating means A of the first horological function when it is in its said second position and, vice versa, said driven pinion 102 does not actuate the actuating means B of the second horological function when it is in its said first position. In analogous manner, the actuating means of two supplemental horological functions, not illustrated in FIGS. 7a and 7b, are disposed either side of the other driven pinions mounted around the driving pinion 101, these means being able to mesh alternately with these driven pinions as a function of their position, when the driving pinion 101 is in the meshed position with one of these driven pinions and as a function of the direction of rotation, clockwise or anti-clockwise, of the driving pinion 101. To generalize, by selecting the direction of rotation of the driving pinion 101 as well as its position, the device in accordance with the invention can therefore control a number of supplemental functions corresponding to double the number of driven pinions present in the device.
[0054] The structure of the actuating means A and B is determined by the constitution of the parts forming the corresponding horological functions. The driven pinions 102, 103 on the one hand carry teeth adapted to mesh with the teeth of the driving pinion 101, and on the other hand carry a coaxial mobile including teeth, or respectively a finger, which is adapted to cooperate with teeth, or respectively an actuating means A, B, of a horological function. Solely by way of illustrative example, FIG. 6b shows one of the driven pinions carrying a coaxial mobile having a finger 111 which can interact with teeth of a disk of the corresponding horological function.
[0055] In summary, the mechanism described above comprises six pivoting sliding pinions, each preferably housed in a corresponding oblong housing or formed by a ring mounted about an eccentric axis, enabling 26=12 functions to be selected and actuated. Another pinion, the central pinion 101, is housed on a rotary arm in a manner such that it can selectively approach one of the six lateral pinions by rotation of the arm, by means of a control device described below. A setting wheel 109 acts to drive the central pinion 101, this setting wheel itself being driven, for example, with the aid of a winding and correction crown (not shown in the figures). The central pinion 101, which is therefore the driving pinion, can thus transmit a rotational movement to the selected lateral pinion and, moreover, cause a translation of the selected lateral pinion towards one or the other of the ends of its oblong housing, respectively, by generalizing, towards its firstor second drive position, this being a function of the direction of rotation of the central pinion, in a manner such that, depending on the direction of rotation, the selected lateral pinion selectively actuates one or the other of the two horological functions which can be adjusted by the lateral pinion.
[0056] In the embodiment shown in FIGS. 5a to 7b, the control device for the rotary arm 112 is an assembly constituted by a star 106 which is fixed in rotation with respect to the rotary arm 112, a yoke 104, a jumper 105 which is capable of penetrating between the branches of the star 106 and which is prestressed towards the star 106 by a pre-tensioning spring 107 which itself is fixed via a screw 115 which can be used to adjust the pre-tensioning force of said pre-tensioning spring 107. Said assembly is mounted on the plate 110. The yoke 104 is provided with a yoke spring 108 bearing on a first free end of the yoke 104 and prestressing it in a manner such that a second free end of the yoke 104 bears on the jumper 105 and blocks it between the branches of the star 106. Thus, the star is locked by means of the jumper 105. The first free end of the yoke 104 carries an abutment 114 kinematically connected to an external impelling means such as a pusher, symbolically indicated by an arrow in FIGS. 7a and 7b. An impulse on the abutment 114 following an actuation of the external impelling means has the effect of pivoting the yoke 104, releasing the jumper 105 via the second free end of the yoke 104, and thus of releasing the star 106, as well as of impelling one of the branches of the star 106 via a lug 113 of the yoke 104, which causes a rotation of the star and thus of the rotary arm 112. The control device is calibrated in a manner such that this rotation corresponds to the angular interval between two lateral pinions 102, 103, the number of branches of the star being equal to the number of driven pinions. The driving pinion 101 thus passes from the driven pinion 102 to the driven pinion 103. Releasing of the external impelling means or respectively of the first free end of the yoke 104 causes the jumper 105 to return to between two branches of the star 106 and blocks the pinion 101 in its new position. When the selection device in accordance with the invention is integrated into a timepiece, the user can control the position of the yoke 104 by means of said pusher, meaning that said first free end of the yoke 104 can be actuated, and can modify the direction of rotation of the sliding pinion 101 by means of a crown actuating a stem, for example the winding stem, which can act on the setting wheel 109. By starting from the state of the adjusting device shown in FIG. 5a, for example, the user attains the state of this device shown in FIG. 7a by a rotation of the winding stem in one direction, then changing the actuated horological function as shown in FIG. 7b by reversing the direction of rotation of the stem, i.e. by turning the winding stem in the other direction.
[0057] The person skilled in the art will be able to vary the number of driven pinions as a function of the number of functions of the timepiece. In addition, without departing from the scope of the present invention, the yoke-type control devices described above may be replaced by other systems for displacing the driving pinion. Furthermore, the functions that can be adjusted in a given position of the yoke can be displayed on the dial of the timepiece using suitable measures which are familiar to the person skilled in the art, especially when a large number of horological functions have to be controlled by the adjusting device in accordance with the present invention.
[0058] In view of the aforementioned discussions pertaining to the structure and function of the device in accordance with the present invention, it is clear that such a device offers a number of advantages and can be used to accomplish the objectives defined in the introduction, especially the production of a device for unidirectional correction of a large number of horological functions via selection of the position as well as the direction of rotation of a driving pinion. Furthermore, these construction elements are robust as well as simple and reliable during use thereof. Because of the relatively simple structure of a device of this type, these advantages are obtained without in any way increasing production costs.
LIST OF REFERENCE NUMERALS
[0059] 1 driving pinion [0060] 2 driven pinion [0061] 3 driven pinion [0062] 4 yoke [0063] 5 yoke jumper [0064] 6 wig-wag [0065] 7 control lever [0066] 8 wig-wag spring [0067] 9 drive setting wheel [0068] 10 friction spring [0069] 11 fingers of coaxial mobile [0070] 101 driving pinion [0071] 102 driven pinion [0072] 103 driven pinion [0073] 104 yoke [0074] 105 jumper [0075] 106 star [0076] 107 pre-tensioning spring [0077] 108 yoke spring [0078] 109 drive setting wheel [0079] 109a drive setting wheel [0080] 110 plate [0081] 111 finger [0082] 112 rotary arm [0083] 113 lug [0084] 114 abutment [0085] 115 screw [0086] 116 friction spring
