CH716526A2 - Clockwork to disengage a gear train. - Google Patents

Abstract

The present invention relates to a clockwork (100) for disengaging a gear train. This clockwork (100) comprises a gear assembly (110), a disengagement member (120), a holding member (121) and a control member (130). The gear assembly (110) comprises a first mobile (111), a second mobile (112) and an intermediate mobile (113) configured to be driven by or to drive said first mobile (111) and/or to drive said second mobile (112). The holding member (121) holds the first mobile (111) and/or the second mobile (112) when the disengagement member (120), controlled by the control member (130), moves the intermediate mobile ( 113) between an engagement position (101) and a disengagement position. Thus, the clockwork (100) is held in position while disengaging the mechanism.

Description

Description

Technical area

The field of the present invention relates to that of watchmaking and more particularly that of clockwork for disengaging a gear train.

Technological background

[0002] It is known from the state of the art for clockwork that can disengage a gear train. However, to carry out this disengagement maneuver, a certain volume is necessary.

[0003] In fact, according to the techniques used, the part to be degrained is moved in a space which is achievable in a simple watch, but the task proves to be more delicate when the watch has a limited space on the one hand.

[0004] On the other hand, it is not possible to disconnect a finishing gear train from a display gear train, for example while holding one of the two in place.

Summary of the invention

The present invention proposes to totally or partially solve these drawbacks by a clockwork to disengage a gear train; said clockwork comprising at least:

- A gear assembly: said gear assembly comprising a first mobile, a second mobile and an intermediate mobile disposed between said first mobile and said second mobile; said intermediate mobile being configured to be driven by or to drive said first mobile and/or said second mobile;

- a clutch member: said at least one clutch member being configured to move said intermediate wheel set in a plane of displacement between a clutch position in which said first wheel set, said intermediate wheel set and said second wheel set are kinematically connected and a position release wherein said intermediate mobile is disengaged from said first mobile, and / or said second mobile;

- A holding member: said at least one holding member being configured to hold said first mobile and/or said second mobile; And,

- a control unit; said at least one control member being configured to move said at least one disengaging member between said clutch position and said disengaging position and to move said at least one maintaining member into contact and to maintain said first mobile and/or said second mobile when said at least one clutch release member is in the disengaged position.

[0006] Thanks to this arrangement, it is possible to hold the clockwork in position while disengaging the mechanism. Furthermore, the intermediate mobile can be in motion and in contact with the first mobile while being disengaged from the second mobile, or vice versa, which makes it possible during engagement to avoid tooth-to-tooth contact because the intermediate mobile continues to be in motion thanks to this arrangement. Indeed, this clockwork makes it possible to disconnect two sets of gears and to maintain one of them.

[0007] According to one embodiment, said first mobile and/or said second mobile comprises a friction surface and preferably a toothing and/or a peripheral surface.

According to one embodiment, said first mobile being a first wheel or comprising at least a first pinion and / or said second mobile being a second wheel or comprising at least a second pinion; said at least one first pinion and/or said at least one second pinion being configured for or are configured to drive said intermediate mobile.

[0009] Thanks to this arrangement, it is possible to transmit the movement to the intermediate mobile and preferably the rotary movement to the intermediate mobile.

According to one embodiment, said at least one release member comprises at least one actuating arm; said at least one control member is configured to move said at least one clutch release member through said at least one actuating arm.

[0011]According to one embodiment, said at least one actuating arm being configured to move said at least one disengagement member between said engagement position and said disengagement position.

[0012] Thanks to this arrangement, it is possible to actuate the clutch release member while being remote from the control member.

According to one embodiment, said at least one clutch release member comprises at least a first flexible arm; said at least one first flexible arm being configured to connect said at least one holding member to said at least one release member.

[0014] According to one embodiment, said at least one first flexible arm protruding in cantilever from said at least one release member and comprising said at least one holding member provided with a holding surface; said

holding surface is configured to cooperate with said friction surface and preferably with said toothing and/or said peripheral surface of said first mobile and/or of said second mobile.

[0015] According to one embodiment, said at least one first flexible arm protruding in cantilever from said at least one release member and comprising said at least one holding member provided with a holding surface; said holding surface is configured to cooperate with a friction surface and preferably with a toothing and/or a peripheral surface of said first mobile and/or of said second mobile.

[0016] According to one embodiment, the holding of said first mobile and/or of said second mobile by said holding surface is carried out by friction or greasy friction.

[0017] Thanks to this arrangement, it is possible to maintain one of the mobiles by friction or rubbing while allowing the user to correct it by hand or to set the time without there being any breakage of the part.

[0018] According to one embodiment, said at least one first flexible arm is a return member configured to return the holding member to position.

[0019] Thanks to this arrangement, it is possible to maintain the first mobile and/or the second mobile without blocking the first mobile and/or the second mobile. Indeed, the first flexible arm acts as a spring according to the embodiment.

[0020] According to one embodiment, said at least one first flexible arm being configured to move said at least one holding member into contact with the first mobile and/or the second mobile.

[0021] Thanks to this arrangement, the first flexible arm brings the holding member into contact with the first mobile and/or the second mobile.

According to one embodiment, said at least one first flexible arm is configured to deform elastically.

[0023]According to one embodiment, said at least one clutch release member is pivotally mounted about a pivot axis.

[0024] According to one embodiment, said at least one disengagement member is configured to pivot around said pivot axis so as to move between said engagement position and said disengagement position.

[0025] According to one embodiment, said at least one release member is configured to pivot around said pivot axis so as to move said at least one holding member into contact with said holding surface.

[0026] According to one embodiment, said at least one release member is at least one rocker configured to pivot around said pivot axis so as to move said at least one holding member into contact with said holding surface.

[0027] Thanks to this arrangement, the clutch release member is pivotally mounted about a pivot axis.

[0028]According to one embodiment, said intermediate mobile is arranged on said at least one clutch release member and is preferably pivotally mounted on a return shaft.

[0029] According to one embodiment, said return axis is distinct and/or remote from pivoting tax.

[0030] Thanks to this arrangement, the intermediate mobile can be moved between said clutch position and said disengaged position when the clutch release member is moved.

[0031] According to one embodiment, said intermediate mobile is arranged between said pivot axis and said at least one actuating arm.

[0032] Thanks to this arrangement, the intermediate mobile can be moved between said engagement position and said disengagement position when the disengagement member is moved.

According to one embodiment, said at least one control member is configured to move between at least a first position and at least a second position and comprising a stud; said stud being configured to be in abutment and to move said at least one actuating arm so as to move said at least one clutch release member from said clutch position to said disengaged position when said stud moves from said at least one first position towards said at least one second position and/or in which said at least one clutch release member comprises at least one second flexible arm; said at least one second flexible arm being configured to move said at least one disengagement member from said disengagement position to said engagement position when said stud moves from said at least one second position to said at least one first position.

[0034] Thanks to this arrangement, the stud moves the release member via the actuating arm from the clutch position to the disengaged position and/or the stud moves the release member via the intermediary of the second flexible arm from the disengagement position to the engagement position.

According to one embodiment, the clockwork comprises at least one pin; said at least one actuating arm being configured to come into abutment against said at least one pin so that when said intermediate mobile is driven by said first mobile or by said second mobile, the intermediate mobile and said first mobile and/or the intermediate mobile and said second mobile are in contact at their respective pitch circles.

[0036] Thanks to this arrangement, the intermediate mobile, said first mobile and/or said second mobile is or are in contact at their respective pitch circles.

[0037] According to one embodiment, said first mobile and/or said second mobile comprises or comprise a friction surface and a guide member configured to guide said at least one holding member into contact with said friction surface and preferably said toothing and/or said peripheral surface of said first mobile and/or of said second mobile.

[0038] Thanks to this arrangement, the retaining member is guided as far as the friction surface and preferably as far as the toothing and/or the peripheral surface.

[0039] According to one embodiment, said first mobile and/or said second mobile comprises or comprise a reservoir configured to contain a lubricant to lubricate when said at least one retaining member is in contact with said friction surface and preferably with said toothing and/or said peripheral surface of said first mobile and/or of said second mobile.

[0040] Thanks to this arrangement, wear of the holding member and of the friction surface and preferably of said toothing and/or the peripheral surface is minimized.

[0041] According to one embodiment, said at least one retaining member is tangent with and/or matches the shape of said friction surface and preferably of said toothing and/or of said peripheral surface of said first mobile and/or of said second motive.

[0042] Thanks to this arrangement, the contact between the holding surface and the holding member is either point, linear or surface.

[0043] According to one embodiment, said displacement plane makes an angle between 0° and 10°, in particular between 0° and 7° and preferably between 0° and 5° with said first mobile and/or said second mobile .

[0044] Thanks to this arrangement, it is possible to disengage in one plane.

Brief description of figures

The invention will be described below in more detail with the aid of the appended drawings, given by way of non-limiting examples, in which:

- Figure 1 shows a clockwork in a clutch position; And

- Figure 2 shows a clockwork in a disengaged position.

Detailed description of the invention

The present invention makes it possible to disconnect a finishing gear train from a display gear train, for example, and to hold in place one of the two, and preferably the display gear train.

[0047] Thus, it may be possible to disconnect the gear train from the going train and the gear train from the display train and to be able to generate friction in the display train during disengagement to hold it in place. place in particular.

This disengagement can be actuated either by the intermediary of the first mechanism, or by a mechanism internal to the movement during the passage of a function.

The present invention, illustrated in Figure 1, is in the form of a clockwork 100 configured to disengage a gear train. This clockwork 100 is made up of a gear assembly 110, a clutch release member 120, a holding member 121 and a control member 130.

As can be seen in Figures 1 and 2, the gear assembly 110 comprises a first wheel set 111 which may be a first wheel 111 or a first wheel set 111 comprising a first pinion 116, a second wheel set 112 which may be a second wheel 112 or comprising at least a second pinion, and an intermediate mobile 113.

This intermediate mobile 113 can be placed between the first mobile 111 and the second mobile 112. According to the embodiments, the intermediate mobile 113 can be placed between the first wheel 111 and the second wheel 112 or the second pinion or between the second wheel 112 and the first wheel 111 or the first pinion 116.

In these configurations, the intermediate mobile 113 can be driven by or can drive the first mobile 111 and / or said second mobile 112 and by extension, the first wheel 111 or the first pinion 116, and / or the second wheel 112 or the second pinion according to the embodiments, so as to transmit the movement to the intermediate mobile 113 and preferably the rotary movement to the intermediate mobile 113. Indeed, as can be seen in FIGS. 1 and 2, the first mobile 111 and/ or the second mobile 112 can be a wheel of the going train or a display wheel, and the intermediate mobile 113 can be a return wheel in contact with the wheel of the going train and the display wheel or with their sprockets respective.

[0053] To this is added a clutch member 120 configured to move the intermediate mobile 113 in a plane of movement between a clutch position 101, as shown in an embodiment shown in Figure 1, in

wherein said first mobile 111, said intermediate mobile 113 and said second mobile 112 are kinematically connected and a disengaged position 102, as shown in Figure 2, wherein said intermediate mobile 113 is disengaged from the second mobile 112, for example. Thus, the intermediate mobile can be in motion and in contact with the first mobile 111 while being disengaged from the second mobile 112, or vice versa, which allows during engagement, that is to say during contact of the intermediate mobile 113 with the first mobile 111 or the second mobile 112 to avoid tooth-to-tooth contact because the intermediate mobile continues to be in motion and therefore reduces the risk of damage to the mobiles.

[0054] As mentioned previously, this clockwork 100 also includes a holding member

121 to hold the first mobile 111 and / or the second mobile 112, and more particularly, the release member 120 may include the holding member 121.

In other words, the holding member 121 serves as a brake 121 or to brake the first mobile 111 and/or the second mobile 112, depending on the embodiments. The first mobile 111 and/or the second mobile 112 may or may comprise a friction surface 118 and preferably a toothing and/or a peripheral surface. This friction surface 118 is configured to cooperate with the holding member 121.

[0055] This brake 121, or as mentioned previously, this holding member 121 can be moved by a control member 130 into contact with the first mobile 111 and/or the second mobile 112 and serves to hold the first mobile 111 and/or the second mobile 112 in Position, that is to say stationary, when the clutch release member 120 is in the disengaged Position 102.

This same control member 130 can also move the disengagement member 120 between the clutch position 101 and the disengagement position 102, by means of an actuating arm 125.

[0057] Indeed, the clutch release member 120 comprises an actuating arm 125 by which the control member

130 moves the clutch release member 120 between the clutch position 101 and the disengaged position 102 so as to actuate the release member 120 while being remote from the control member 130. In other words the control member 130 can be located on the periphery of the plate (not shown) and the release member 120 more in the center or on the other side of the plate.

[0058] Thus, it is possible to hold the clockwork in position while disengaging the mechanism so as to allow the time to be set, for example.

[0059] Furthermore, the control member 130 comprises a stud 135 and can move between a first position

131 and a second position 132, as can be seen in the figures. This stud 135 is configured to be in abutment and move the actuating arm 125 so as to move the disengagement member 120 from the clutch position 101 to the disengagement position 102 when said stud 135 moves from the first position 131 to the second position 132.

As seen in Figures 1 and 2, the release member 120 may include a first flexible arm

122 being able to connect the holding member 121 to the release member 120. More exactly, the first flexible arm 122 is configured to move the holding member 121 into contact with the first mobile 111 and/or the second mobile 112 so to bring the holding surface 124 into contact with the first mobile 111 and/or the second mobile 112. According to the embodiments, the holding member 121 can be tangent with and/or can match the shape of the friction surface 118 and preferably of the toothing and/or of the peripheral surface of the first mobile 111 and/or of the second mobile 112 so that the contact between the friction surface 118 and the holding member 121 is either point, linear or surface . In the embodiment of Figures 1 and 2, it is the second mobile which comprises the friction surface 118.

[0061] This first flexible arm 122 may project in a cantilevered manner from the release member 120 and may comprise the holding member 121. The first flexible arm 122 may be a return member configured to return to the position the holding member 121 in the manner of a spring or deform elastically according to the embodiment.

[0062] Still in the figures, the clutch release member 120 is provided with a holding surface 124, and more particularly the holding member 121 comprises the holding surface 124. This holding surface 124 can cooperate with the surface friction 118 and preferably with the toothing and/or the peripheral surface of the first mobile 111 and/or of the second mobile 112 so as to achieve friction and/or fatty friction with the first mobile 111 and/or the second mobile 112 .

[0063] According to one embodiment, this friction or this greasy friction is achievable totally or partially thanks to the combination of the holding member 121 comprising the holding surface 124 and the first flexible arm 122, because, in fact, the first flexible arm 122 will make it possible to adjust the frictional force or the friction to maintain the first mobile

111 and/or the second mobile 112 and to allow the user to set the time without having to exert too great a force, which makes it possible to minimize wear and avoid breakage of the parts. For this purpose, a reservoir may optionally be provided on the first mobile 111 and/or the second mobile 112. This reservoir may be configured to contain a lubricant to lubricate when the holding member 121 is in contact with the friction surface 118 and preferably of the toothing and/or the peripheral surface of the first mobile 111 and/or of the second mobile 112 and thus minimize the wear of the holding member 121 and of the friction surface 118 and preferably of the toothing and/or the peripheral surface.

[0064] This reservoir can take the form of a guide member 119 on the first mobile 111 and/or the second mobile

112 so as to guide and/or lubricate said at least one retaining member 121 when it is in contact with the surface of the

Claims (15)

friction 118 and preferably of the toothing and/or of the peripheral surface of said first mobile 111 and/or of said second mobile 112. As mentioned above, the holding member 121 is moved into contact with the first mobile 111 and / or the second mobile 112. This movement is achieved by a pivoting or tilting of the release member 120 around an axis swivel 123. [0066] Indeed, the clutch release member 120 is configured to pivot around the pivot pin 123 so as to move between said clutch position 101 and said disengaged position 102, which allows the displacement of the member. holding 121 in contact with said friction surface 118 and according to some embodiment, the release member 120 may be a rocker 120. [0067] During this pivoting or this tilting, the intermediate mobile 113, being placed on the release member 120, is preferably pivotally mounted on a return axis 127 which can be distinct and/or distant from the pivot axis 123 Indeed, according to one embodiment (not shown), the clutch release member 120 may comprise a sliding pinion mounted on pivoting tax so that pivoting tax and return tax soll on the one hand confused and on the other except that when the clutch release member 120 moves from the clutch position to the disengaged position, the sliding pinion pivots at the same time as the release member 120 and is accompanied by a translational movement downwards or the top of So the intermediate mobile 113 is no longer in contact with the first mobile 111 and / or the second mobile 112. [0068] Thus, regardless of whether the return tax 127 is distinct or confused with the pivot tax 123, the intermediate mobile 113 can be moved between said clutch position 101 and said disengagement position 102 when the clutch release member 120 is moved. According to another embodiment, the intermediate mobile 113 is arranged between said pivot axis 123 and the actuating arm 125. An advantage of this arrangement is to allow the intermediate mobile 113 to remain in motion and/or to contact of the first mobile 111 while being disengaged from the second mobile 112, or vice versa. Thus, when the release member 120 moves from the release position 102 to the clutch position 101, the movement of the mobile associated with the movement of the release member 120 reduces the risk of having a tooth contact against tooth because on the one hand the mobile moves in a plane, forming an angle between 0° and 10°, in particular between 0° and 7° and preferably between 0° and 5° with the first mobile 111 and/or the second mobile 112, and on the other hand II remains in motion. So when the intermediate mobile 113 returns to the clutch position 101, more precisely when the clutch release member 120 moves towards the clutch position 101, the intermediate mobile 113 continues its rotation around the return axle 127 and engages the first mobile 111 or the second mobile 112. [0070] Furthermore, the release member 120 optionally comprises a second flexible arm 126 configured to move the release member 120 from the release position 102 to the clutch position 101 when the control member 130, and by extension the stud 135 mentioned above moves from the second position 132 to the first position 131. More particularly, this second flexible arm 126 can deform elastically and thus move the intermediate mobile 113 in a more flexible manner towards the clutch 101. Finally, the clockwork 100 may include a pin 139 so that when the actuating arm 125 is in abutment against this pin 139 in the first position 131 or in the clutch position 101, the intermediate mobile 113 and at least one of the first or second mobile 111, 112, are in contact at their respective pitch circles so that the transmission of movement is optimal. In short, Figure 1 shows the control member 130 pulling the release member 120 through the intermediary of the stud 135 which constrains the second flexible arm 126 of the release member 120. The release member 120 is in abutment against the pin 139 and includes the intermediate mobile 113, also called return 113, which meshes with the wheel of the second mobile 112. The holding member 121 of the release member 120 is not in contact with the friction surface 118 and preferably with the toothing and/or the peripheral surface. Thus, the first mobile 111 drives the second mobile 112 via the intermediary of the intermediate mobile 113. [0074] In Figure 2, the control member 130 is moved and the pad 135 loses its contact with the second flexible arm 126 and comes into contact with the actuating arm 125 of the release member 120 which moves it in rotation. The transmission 113 remains meshed with the pinion of the first mobile 111 but deengages with the second mobile 112. The holding member 121 comes into contact with the friction surface 118 and preferably with the toothing and/or the peripheral surface by the intermediary of the holding member 121 which keeps the second mobile 112 in place, with the backlash close. [0075] Thus, the first mobile 111 continues to rotate and the second mobile 112 is stopped and held by the release member 120 via the holding member 121. Claims 1. Clockwork (100) for disengaging a gear train; said clockwork (100) comprising at least: - a gear assembly (110): said gear assembly (110) comprising a first mobile (111), a second mobile (112) and an intermediate mobile (113) arranged between said first mobile (111) and said second mobile (112); said intermediate mobile (113) being configured to be driven by or to drive said first mobile (111) and/or said second mobile (112); - a release member (120): said at least one release member (120) being configured to move said intermediate wheel set (113) in a plane of movement between a clutch position (101) in which said first wheel set (111) , said intermediate mobile (113) and said second mobile (112) are kinematically connected and a disengaged position (102) in which said intermediate mobile (113) is disengaged from said first mobile (111), and/or said second mobile (112 ); - a holding member (121): said at least one holding member (121) being configured to hold said first mobile (111) and/or said second mobile (112); And, - a control unit (130); said at least one control member (130) being configured to move said at least one disengagement member (120) between said engagement position (101) and said disengagement position (102) and to move said at least one holding member (121) in contact with and maintaining said first mobile (111) and/or said second mobile (112) when said at least one disengagement member (120) is in the disengaged position (102). 2. Clockwork (100) according to claim 1, wherein said first mobile (111) being a first wheel (111) or comprising at least a first pinion (116) and/or said second mobile (112) being a second wheel (112) or comprising at least a second pinion; said at least one first pinion (116) and/or said at least one second pinion being configured for or are configured to drive said intermediate mobile (113). 3. Timepiece (100) according to claim 1 or 2, wherein said at least one disengagement member (120) comprises at least one actuating arm (125); said at least one control member (130) is configured to move said at least one clutch release member (120) through said at least one actuating arm (125). 4. Clockwork (100) according to any one of the preceding claims, wherein said at least one release member (120) comprises at least a first flexible arm (122); said at least one first flexible arm (122) being configured to connect said at least one holding member (121) to said at least one release member (120). 5. Clockwork (100) according to claim 4, wherein said at least one first flexible arm (122) being configured to move said at least one holding member (121) in contact with the first mobile (111) and/ or the second mobile (112). 6. Clockwork (100) according to any one of claims 4 or 5, wherein said at least one first flexible arm (122) is configured to deform elastically. 7. Clockwork (100) according to any one of the preceding claims, wherein said at least one release member (120) is pivotally mounted about a pivot axis (123). 8. Clockwork (100) according to claim 7, wherein said at least one clutch release member (120) is configured to pivot about said pivot axis (123) so as to move between said clutch position ( 101) and said disengaged position (102). 9. Clockwork (100) according to any one of the preceding claims, wherein said intermediate mobile (113) is arranged on said at least one release member (120) and preferably is pivotally mounted on a return axis (127). 10. Clockwork (100) according to any one of the preceding claims, wherein said intermediate mobile (113) is arranged between said pivot axis (123) and said at least one actuating arm (125). 11. Clockwork (100) according to any one of the preceding claims, wherein said at least one control member (130) is configured to move between at least one first position (131) and at least one second position. (132) and comprising a pad (135); said stud (135) being configured to be in abutment and move said at least one actuating arm (125) so as to move said at least one clutch release member (120) from said clutch position (101) to said position clutch (102) when said stud (135) moves from said at least one first position (131) to said at least one second position (132) and/or in which said at least one clutch release member (120) comprises at at least a second flexible arm (126); said at least one second flexible arm (126) being configured to move said at least one disengagement member (120) from said disengagement position (102) to said engagement position (101) when said stud (135) moves from said at least one second position (132) to said at least one first position (131). 12. Clockwork (100) according to any one of claims 3 to 12, which comprises at least one pin (139); said at least one actuating arm (125) being configured to come into abutment against said at least one pin (139) so that when said intermediate mobile (113) is driven by said first mobile (111) or by said second mobile (112), the intermediate mobile (113) and said first mobile (111) and/or the intermediate mobile (113) and said second mobile (112) are in contact at their respective pitch circles. 13. Clockwork (100) according to any one of the preceding claims, in which said first mobile (111) and/or said second mobile (112) comprises or comprises a friction surface (118) and preferably a toothing and/or a peripheral surface, and a guide member (119) configured to guide said at least one member (121) in contact with said friction surface (118) and preferably with said toothing and/or said peripheral surface of said first mobile (111) and/or said second mobile (112). 14. Clockwork (100) according to any one of the preceding claims, wherein said at least one holding member (121) is tangent with and/or matches the shape of said friction surface (118) and preferably of said toothing and/or of said peripheral surface of said first mobile (111) and/or of said second mobile (112). 15. Clockwork (100) according to any one of the preceding claims, in which the said displacement plane makes an angle of between 0° and 10°, in particular between 0° and 7° and preferably between 0° and 5°. ° with said first mobile (111) and / or said second mobile (112).