Drive device for horology calendar system

Patent metadata

Field	Value
Publication number	US-11550265-B2
Application number	US-201816162571-A
Country	US
Kind code	B2
Filing date	Oct 17, 2018
Priority date	Nov 2, 2017
Publication date	Jan 10, 2023
Grant date	Jan 10, 2023

Abstract

Drive device ( 100 ), notably for a horology calendar system ( 200 ), the drive device including a drive mobile ( 10 ) for driving an element ( 4 ) that is to be driven, notably a calendar element, the drive mobile being intended to be mounted so that it can rotate about an axis (A 1 ) and including (a) a support ( 11 ); (b) a first flank (f 11 ) for driving the element that is to be driven; and (c) a second flank (f 12 ′) arranged in such a way as to receive an action to retract the drive mobile, notably extending orthoradially or substantially orthoradially with respect to the axis (A 1 ); the mobile comprising a slide link ( 111, 121; 11, 120; 110, 120 ′) connecting the second flank to the support.

First claim

The invention claimed is:

1. A drive device comprising a drive mobile for driving an element that is to be driven, notably a calendar element, the drive mobile being intended to be mounted so that it can rotate about an axis and comprising:
a support;
a first flank for driving the element that is to be driven; and
a second flank arranged so as to receive an action to retract the drive mobile;
wherein the mobile comprises a slide link connecting the second flank to the support so that the second flank is movable relative to the first flank.

2. The device as claimed in claim 1 , wherein the second flank is attached to the first flank.

3. The device as claimed in claim 2 , wherein the mobile comprises an elastic return element returning the second flank toward a rest position.

4. The device as claimed in claim 1 , wherein the mobile comprises an elastic return element returning the second flank toward a rest position.

5. The device as claimed in claim 4 , wherein the elastic return element comprises a spring.

6. The device as claimed in claim 5 , wherein the spring is in the form of an open ring and/or has the second flank at a first end and an attachment to the support at a second end.

7. The device as claimed in claim 1 , wherein the slide link comprises a pin produced on an element bearing the second flank and a slot produced on the support or wherein the slide link comprises a slot produced on an element bearing the second flank and a pin produced on the support.

8. The device as claimed in claim 1 , wherein the slide link comprises a first face produced on an element bearing the second flank and a second face produced on the support.

9. The device as claimed in claim 1 , wherein the first flank exhibits a first surface that is planar or substantially planar or curved and/or wherein the second flank exhibits a second surface that is planar or substantially planar or curved.

10. The device as claimed in claim 1 , wherein the first flank extends radially or substantially radially relative to the axis.

11. The device as claimed in claim 1 , wherein the second flank is a retraction flank of the mobile.

12. The device as claimed in claim 1 , wherein the support is secured to a calendar cam.

13. A horology calendar system comprising a drive device as claimed in claim 1 and an element that is to be driven which is a calendar indicator mobile.

14. A horology movement comprising a system as claimed in claim 13 .

15. A timepiece comprising a movement as claimed in claim 14 .

16. A horology calendar system according to claim 13 , wherein the calendar indicator mobile is a disk indicating the days of the month.

17. The drive device according to claim 1 , wherein the second flank extends orthoradially or substantially orthoradially with respect to the axis.

18. A drive device comprising a drive mobile for driving an element that is to be driven, notably a calendar element, the drive mobile being intended to be mounted so that it can rotate about an axis and comprising:
a support;
a first flank for driving the element that is to be driven; and
a second flank arranged so as to receive an action to retract the drive mobile;
wherein the mobile comprises a slide link connecting the second flank to the support, and
wherein the mobile comprises a third flank for braking the element that is to be driven.

19. The device as claimed in claim 18 , wherein the first flank is fixed or substantially fixed angularly about the axis with respect to the support and/or wherein the third flank is fixed or substantially fixed angularly about the axis with respect to the support.

20. The device as claimed in claim 18 , wherein the third flank extends radially or substantially radially relative to the axis.

Assignees

• Rolex Sa

Inventors

• Fleury Christian
• Rudaz Denis

Classifications

• G04B19/25373 Primary

  driven or released stepwise by an energy source which is released at determined moments by the clockwork movement · CPC title

• G04B19/25

  Devices for setting the date indicators manually · CPC title

• G04B11/006

  Clutch mechanism between two rotating members with transfer of movement in only one direction (free running devices) · CPC title

• G04B19/2538 Primary

  automatically corrected at the end of months having less than 31 days · CPC title