Striking clock mechanism

Abstract

The present invention relates to a striking clock mechanism (100) including a first cannon pinion (1), a second cannon pinion (2), a geared connection (14, 15, 21) between the first cannon pinion (1) and the second cannon pinion (2), and a device (16) for compensating for a gap in the geared connection. The geared connection (14, 15, 21) between the first cannon pinion (1) and the second cannon pinion (2) includes a first gear (15) attached to the first cannon pinion (1), a second gear (14) pivotally mounted relative to the first cannon pinion, and a third gear (21) attached to the second cannon pinion (2), the first and second gears meshing with the third gear, and the gap compensating device (16) of the geared connection being arranged to apply a return force to return the first and second gears against opposite flanks of at least one tooth of the third gear (21) and / or adjacent flanks of at least two consecutive teeth of the third gear (21).

Description

[Technical Field]

[0001] The present invention relates to a mechanism for a timepiece movement. The invention also relates to a timepiece movement comprising such a mechanism. The invention finally relates to a timepiece comprising such a mechanism and / or such a movement. [Background technology]

[0002] Clock striking mechanisms are highly complex because of the number and nature of the kinematic connections between their parts.

[0003] Typically, in striking mechanisms, especially traditional repeater striking mechanisms, the minute volute cam, which interacts with the feeler of the minute piece and has a notch that adjusts the minute striking, is fixed directly to the cannon pinion that carries the minute hand at its end. This arrangement ensures that there is no offset between the position of the minute hand, the minute scale on the dial, and the number of minute strikes struck. The same applies to the quarter-hour volute cam, which interacts with the feeler of the quarter-hour piece and has a notch that adjusts the quarter-hour striking.

[0004] Such a construction presents a problem in mounting and setting the spiral cam to ensure that the striking is perfectly synchronized with the position of the hands. Summary of the Invention [Problem to be solved by the invention]

[0005] The object of the present invention is therefore to provide a mechanism that overcomes the above-mentioned drawbacks and improves upon the mechanisms known from the prior art. In particular, the present invention proposes a mechanism that is simple and makes it easy to adapt the cams of the striking mechanism and to synchronize the striking mechanism with the timepiece display. [Means for solving the problem]

[0006] A first aspect of the invention relates to an arrangement as defined in claim 1.

[0007] According to a first aspect of the invention, some embodiments of the mechanism are defined in claims 2 to 6.

[0008] According to a first aspect of the invention, the clock movement is defined in claim 7.

[0009] According to a first aspect of the invention, an embodiment of the movement is defined in claim 8.

[0010] According to a first aspect of the invention, the watch is defined in claim 9.

[0011] According to a second aspect of the invention, the subject is defined by the following proposition.

[0012] 1. First cylinder (1) and The second barrel (2) and a geared connection (14, 15, 21) between the first pinion (1) and the second pinion (2); a device (16) for compensating for the clearance between the moving parts of the geared connection; A mechanism (100) for a striking clock movement (200) including:

[0013] 2. The geared connection (14, 15, 21) between the first pinion (1) and the second pinion (2) is a first gear (15) fixed on the first cylindrical pinion (1); a second gear (14) pivotally mounted relative to the first pinion; a third gear (21) fixed on the second cylindrical pinion (2); Including, the first and second gears mesh with the third gear; The device (16) for compensating for the clearance between the moving parts of the geared connection comprises: the opposite side of at least one tooth of said third gear (21), and / or adjacent flanks of at least two consecutive teeth of the third gear (21); and arranged to apply a restoring force to the The mechanism (100) described in Proposal 1.

[0014] 3. The movable part clearance compensation device (16) includes an element (131) for adjusting the return force, and the adjustment element (131) includes, for example, a grippable notch (131) that allows the second gear (14) to rotate relative to the first cannon pinion (1). The mechanism described in Proposal 2 (100).

[0015] 4. The movable part clearance compensation device (16) is First, to the first pinion (1), especially at one of its ends, and Secondly, in particular at the other of its ends, said second gear (14) Fixed, including springs (16), in particular leaf springs (16), 10. The mechanism (100) according to any one of proposals 1 to 3.

[0016] 5. The spring (16) is At one of its ends, it is attached to the second gear (14) by means of a pin (163), At the other end of the spring (16), the first pinion (1) is connected to the ring (161) of the spring (16). be fixed, The mechanism (100) described in proposals 2 and 4.

[0017] 6. The first pinion (1) is intended to receive a first minute indicator, such as a minute hand (61); 6. The mechanism (100) according to any one of proposals 1 to 5.

[0018] 7. The second pinion (2) is intended to take at least the striking cams (22, 23, 24), in particular the minute volute cam (22) and / or the surprise piece (23) and / or the quarter hour volute cam (24). 7. The mechanism (100) according to any one of proposals 1 to 6.

[0019] 8. A mechanism (100) according to any one of proposals 1 to 7, a final gear (99) that drives one of the first and second cannon pinions (1, 2); Including clock movements (200).

[0020] 9. The movement includes a frame (90), in particular a main plate (91), the first cannon pinion (1) is mounted on the dial side of the frame, and the second cannon pinion (2) is mounted on the receiving side of the frame. A clock movement as described in Proposal 8 (200).

[0021] 10. A mechanism (100) according to any one of proposals 1 to 7, and / or A clock movement (200) as described in proposal 8 or 9; Clocks (300), especially striking watches (300), including:

[0022] The objects, features, and advantages of the present invention will be explained in detail in the following description of specific non-limiting embodiments with reference to the accompanying drawings. [Brief explanation of the drawings]

[0023] [Figure 1] FIG. 1 is a partial cross-sectional view of one embodiment of a timepiece according to the present invention. [Figure 2] FIG. 2 is a schematic cross-sectional perspective view of an embodiment of the timepiece. [Figure 3] FIG. 3 is a schematic perspective view of an embodiment of a watch. [Figure 4] FIG. 4 is a perspective view of a portion of an embodiment of a watch. DETAILED DESCRIPTION OF THE INVENTION

[0024] One embodiment of a timepiece 300 will be described in detail below with reference to Figures 1 to 4. The timepiece 300 is, for example, a timepiece, in particular a wristwatch, and / or a clock having a striking movement. The timepiece 300 includes a striking clock movement 200 intended to be mounted in a case or casing of the timepiece to protect it from the external environment. The clock movement 200 may be a mechanical movement, in particular an automatic movement.

[0025] The clock movement 200 a frame 90, in particular an ébauche or main plate 91; a first pinion moving part 19; - a second barrel pinion moving part 29; - a final gear 99, driving one of the first and second tubular pinion moving parts; Includes:

[0026] The first pinion moving part 19 comprises the first pinion 1. The first pinion moving part, in particular the first pinion 1, is pivotable on the frame 90, in particular on a first pivot 18 mounted in the frame 90, in particular driven in via its end 93, for example. The first pivot 18 may be a central tube. The first pinion moving part 19 comprises various elements 11, 12, 13, 14, 15, 16, 17 mounted on the first pinion 1. The first pinion moving part 19 is advantageously mounted on the dial side of the frame 90.

[0027] The second pinion moving part 29 comprises the second pinion 2. The second pinion moving part, in particular the second pinion 2, is pivotable on a frame 90, in particular on a second pivot 28 mounted in the frame 90, in particular driven in, for example via its end 92. The second pinion moving part 29 comprises various elements 21, 22, 23, 24 mounted on the second pinion 2. The second pinion moving part 29 is advantageously mounted on the receiving side of the frame 90.

[0028] In other words, the clock movement 200 - a first pinion 1 or a first pinion moving part 19; - the second pinion 2 or the second pinion moving part 29; The mechanism 100 includes:

[0029] The mechanism 100 also - a geared connection 14, 15, 21, in particular a direct meshing connection (or a meshing without intermediate gears) between the first and second pinions 1, 2; - a device 16 for compensating for the clearance between the moving parts of the geared connection; Includes:

[0030] As shown, the first pinion moving part 19 is advantageously mounted on a pivot 18 which is driven into the frame 90 and which defines a first axis A1 of rotation of the first pinion moving part 19 relative to the frame 90.

[0031] The first cylindrical pinion movable part 19 is preferably - First barrel kana 1 and a first cannon pinion gear 11 mounted in a friction fit on the cannon pinion 1 and arranged to mesh with or form part of a final gear 99 (as shown in FIG. 4 with the hour wheel 17 removed); - a cannon pinion 12, integral with the first cannon pinion 1 or fixed, in particular driven, onto the first cannon pinion 1, and arranged to mesh with the minute wheel 98 of the minute moving part (as shown in FIG. 4 with the hour wheel 17 removed); - a second gear wheel 14 mounted on the first cannon pinion 1 with the ability to rotate about an axis A1, the second gear wheel 14 including a toothing 141 and a plate 13, the toothing 141 being arranged to mesh with the gear wheel 21 of the second cannon pinion; a third gear wheel 15, integral with the first pinion 1 or fixed, in particular driven, onto the first pinion 1, and arranged to mesh with the gear wheel 21 of the second pinion 2; - an hour wheel 17 mounted with the ability to rotate on the first cannon pinion 1 about the axis A1 and arranged to mesh with the minute pinion 97 of the minute moving part; - an hour hand 62, fixed on the hour wheel and specifically set in place; - a minute hand 61 fixed, particularly mounted, on the first pinion 1; Includes:

[0032] The second cylindrical pinion movable part 29 is preferably - Second barrel kana 2 and a fourth gear wheel 21, integral with the second cannon pinion 1 or fixed, in particular driven, on the second cannon pinion 2, arranged to mesh with the aforementioned gear wheels 14 and 15; Includes:

[0033] Preferably, the geared connections 14, 15, 21 between the first pinion 1 and the second pinion 2 are - a third gear 15 fixed on the first cannon pinion 1; a second gear wheel 14 pivotally mounted relative to the first cannon pinion 1; - a fourth gear 21 fixed on the second cannon pinion 2; The second and third gears 14, 15 mesh with a fourth gear 21.

[0034] Preferably, the device 16 for compensating for the clearance between the moving parts of the geared connection comprises: - the opposite flank of at least one tooth of the fourth gear 21, and / or - adjacent flanks of at least two consecutive teeth of the fourth gear wheel 21, The second and third gears 14, 15 are arranged to apply a return force to the first and second gears 14, 15.

[0035] Advantageously, the moving part clearance compensation device 16 comprises: - first, to the first pinion 1, especially at one of its ends, secondly, in particular at the other of its ends, to the second gear 14; It may also include a spring 16, in particular a leaf spring 16, which is fixed.

[0036] More specifically, the spring 16 may be secured at a first end thereof to the second gear 14 using a pin 163 .

[0037] Additionally, the spring 16 may be fixed at its second end to the first pinion by means of a ring 161 driven into the pinion.

[0038] The moving part clearance compensation device 16 includes an element 131 for adjusting the restoring force. For this purpose, the plate 13 may have a set of notches 131 for rotating the second gear 14 relative to the first cannon pinion. The set of notches may be manipulated with a tool. The manipulation may be in one direction around the axis A1 or in the other direction. When the spring 16 is deformed to obtain the desired strength of the restoring force, - on the one hand, the second gear 14 and the third gear 15, - on the other hand, the fourth gear 21 The teeth are preloaded and engaged. Thus, the second gear is in meshing contact with the fourth gear, and the third gear is in meshing contact with the fourth gear. Thus, the toothing is preloaded. It should be noted that the return force must be set to a value sufficient to prevent any play between the first and second barrel pinions relative to one another under normal conditions of use of the watch. In particular, a high return force will lead to energy losses and, as a result, to a loss of the watch's energy independence.

[0039] In the above-described embodiment, an angle return element is used to return the two tooth rows relative to each other to achieve a gap-free meshing between the movable parts. However, alternatively, other means for achieving a gap-free meshing between the movable parts may be used. In particular, tooth rows with flexible teeth, in particular tooth rows with slits in their height direction, can be used on the first and / or second pinion.

[0040] In the above-described embodiment, the clearance compensation device 16, i.e., the preload device, is disposed on the first cantilever. Alternatively, regardless of the embodiment or modification, the clearance compensation device 16 may be disposed on the second cantilever.

[0041] Regardless of the embodiment or variant, the transmission ratio of the mesh connecting the first and second cannon pinions is advantageously unity.

[0042] Regardless of the embodiment or modified example, the second pinion may have only one spiral cam.

[0043] In the above-described embodiment, the final gear drives the first pinion, which in turn drives the second pinion. Alternatively, regardless of the embodiment or variant, the final gear may drive the second pinion, which in turn drives the first pinion.

[0044] As a result of the present invention, - The hour hand rotates around the first axis A1, - one or more striking mechanism cams about a second axis A2, It is possible to mount the first and second axes. - distinct and / or distant from each other, and - parallel (as in the embodiment shown) or non-parallel.

[0045] The solution offers a wide structural flexibility for positioning the various means of the timepiece at various locations on the timepiece movement.

[0046] Thanks to the present invention, it is also possible to mount the first cannon pinion on one side of the clock movement and the second cannon pinion on the other side of the movement, which can make it easier to mount and set the clock movement.

[0047] The first and second pinions are mounted so that they mesh directly with each other, i.e., without intermediate gears. For this reason, the tolerance stack-up of the positioning of the first and second pinions relative to each other is very small. Furthermore, the described solution compensates for any inter-movement clearances that may exist between the first and second pinions. Naturally, due to the described solution, the first and second pinions are precisely synchronized in terms of their rotation about their respective axes A1 and A2.

Claims

1. First tube (1), Second cylinder (2), A gear-type connection (14, 15, 21) between the first cylinder (1) and the second cylinder (2), A movable part gap compensation device (16) that compensates for the gap between movable parts of the gear-type connection, A mechanism (100) of a clock movement (200) including, The aforementioned gear-type connections (14, 15, 21) The first gear (15) is fixed on the first cylinder (1), A second gear (14) is pivotally mounted on the first cylinder, A third gear (21) is fixed on the second cylinder (2), Includes, The first and second gears mesh with the third gear, The movable part gap compensation device (16) controls the first and second gears, The side opposite to at least one tooth of the third gear (21), and / or On adjacent sides of at least two consecutive teeth of the third gear (21), It is positioned to apply a return force to return it to the original position. Mechanism (100).

2. The movable part gap compensation device (16) includes an adjustment element (131) for adjusting the return force, The mechanism (100) according to claim 1.

3. The aforementioned gap compensation device (16) between movable parts includes a spring (16), and the spring (16) is Firstly, the first cylinder (1) mentioned above, and Secondly, the second gear (14) has, To be fixed in place The mechanism (100) according to claim 1.

4. The spring (16) has a first end and a second end, At the first end, the pin (163) is used to connect to the second gear (14), At the second end, the ring (161) belonging to the spring (16) is connected to the first cylindrical part (1), To be fixed in place The mechanism (100) according to claim 3.

5. The first cylinder (1) is adapted to take the first minute indicator. The mechanism (100) according to claim 1.

6. The aforementioned second cylinder (2) is adapted to take at least the bell striking operation cams (22, 23, 24), The mechanism (100) according to claim 1.

7. The mechanism (100) described in claim 1, A final gear (99) that drives the first cylinder (1) or the second cylinder (2), A watch movement (200), including the following.

8. The movement includes a frame (90), the first cylinder (1) is mounted on the dial side of the frame, and the second cylinder (2) is mounted on the receiving side of the frame. The clock movement (200) according to claim 7.

9. The mechanism (100) described in claim 1 Including watches (300).

10. The adjustment element (131) includes a grippable notch (131) which is adapted to allow the second gear (14) to rotate relative to the first cylindrical pinion (1), The mechanism (100) according to claim 2.

11. The spring (16) has a first end and a second end, At the first end, the first cylindrical part (1) is also At the second end, the second gear (14) To be fixed in place The mechanism (100) according to claim 3.

12. The spring (16) is At the first end, the pin (163) is used to connect to the second gear (14), At the second end, the ring (161) belonging to the spring (16) is connected to the first cylindrical part (1), To be fixed in place The mechanism (100) according to claim 11.

13. The first minute indicator is a minute hand (61), The mechanism (100) according to claim 5.

14. The clock striking cams (22, 23, 24) are a minute-time vortex cam (22) and / or a surprise piece (23) and / or a quarter-time vortex cam (24). The mechanism (100) according to claim 6.

15. The movable part gap compensation device (16) includes a spring (16), and the spring (16) is Firstly, the first cylinder (1) mentioned above, and Secondly, the second gear (14) has, To be fixed in place The mechanism (100) according to claim 2.

16. The spring (16) has a first end and a second end, At the first end, the pin (163) is used to connect to the second gear (14), At the second end, the ring (161) belonging to the spring (16) is connected to the first cylindrical part (1), To be fixed in place The mechanism (100) according to claim 15.

17. The first cylinder (1) is adapted to take a first minute indicator. The mechanism (100) according to claim 2 or 3.

18. The second cylinder (2) is adapted to take at least the bell striking operation cams (22, 23, 24), The mechanism (100) according to claim 2 or 3.

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