Timepiece part

Patent metadata

Field	Value
Publication number	US-9645550-B2
Application number	US-201214361530-A
Country	US
Kind code	B2
Filing date	Nov 30, 2012
Priority date	Dec 2, 2011
Publication date	May 9, 2017
Grant date	May 9, 2017

Abstract

A timepiece part, includes a frame having a power source, a housing including a first pivotal movement system and a second pivotal movement system; an escapement set up on a mounting, a first kinematic linkage including a first wheel borne by a first half-shaft from the first pivotal movement system and a second wheel borne by a first half-shaft from the second pivotal movement system, and a second kinematic linkage including a first wheel borne by the second half-shaft from the first pivotal movement system and a second wheel borne by the first or second half-shaft of the second pivotal movement system. One of the wheels borne by the second pivotal movement system is kinematically linked to the power source, and the other wheel borne by the pivotal movement system is stationary relative to the frame. Both wheels borne by the first system are kinematically linked to a differential.

First claim

The invention claimed is:

1. A timepiece part including:
a frame supporting an energy source,
a chassis comprising a support pivotably mounted inside said chassis around a first axis by a first pivoting system comprising first and second coaxial half-arbors, said chassis being pivotably mounted with respect to the frame around a second axis substantially perpendicular to the first axis by a second pivoting system comprising first and second coaxial half-arbors, and
an escapement arranged on said support, the escapement comprising an escapement wheel and an escapement pinion connected with a shaft,
wherein a first wheel supported by the first half-arbor of the first pivoting system forms a first gear train with a second wheel supported by the first half-arbor of the second pivoting system, and
wherein a first wheel supported by the second half-arbor of the first pivoting system forms a gear train with a a second wheel supported by the first or second half-arbor of the second pivoting system, wherein:
one of the wheels supported by the second pivoting system is kinematically connected to the energy source, and the other wheel supported by that pivoting system is stationary relative to the frame, and
both wheels supported by the first pivoting system are kinematically connected with an input of a differential comprising transmission discs having a common axis of rotation being parallel to the shaft of the escapement, said differential being mounted on said support, said differential being arranged to transmit, at its output, the average of the rotations received at its inputs, said output being kinematically connected to the escapement,
wherein, at the output of the differential, the rotations due to the movements of the support cancel each other out, said differential producing at its inputs two opposite rotations without any inverter such that, together with the pivoting systems, the differential maintains a substantially constant orientation.

2. The timepiece part according to claim 1 , wherein the drive ratios of the first kinematic chain and the second kinematic chain are identical.

3. The timepiece part according to claim 2 , wherein the second wheel of the second kinematic chain is supported by the second half-arbor of the second pivoting system.

4. The timepiece part according to claim 2 , wherein the second wheel is supported by the first half-arbor of the second pivoting system.

5. The timepiece part according to claim 2 , wherein the half-arbors of the first pivoting system further include a pinion engaged with an input of the differential.

6. The timepiece part according to claim 2 , wherein one of the wheels of the second pivoting system is kinematically connected to the energy source.

7. The timepiece part according to claim 6 , wherein the wheel of the second pivoting system that is not kinematically connected to the energy source comprises a blocking system in reference to the frame.

8. The timepiece part according to claim 1 , wherein the second wheel of the second kinematic chain is supported by the second half-arbor of the second pivoting system.

9. The timepiece part according to claim 1 , wherein the second wheel is supported by the first half-arbor of the second pivoting system.

10. The timepiece part according to claim 1 , wherein the half-arbors of the first pivoting system further include a pinion engaged with an input of the differential.

11. The timepiece according to claim 10 , wherein the first input and the second input of the differential are respectively secured to a first sun wheel and a second sun wheel, respectively meshing with a first satellite and with a second satellite, said satellites being pivotably mounted on a satellite carrier and meshing with each other, said satellite carriers being coaxial with said sun wheels and defining the output of the differential.

12. The timepiece part according to claim 11 , wherein the satellite carrier is kinematically connected to the escapement, using a shaft, provided on the one hand with an escapement pinion kinematically connected with the satellite carrier, and on the other hand receiving the escapement wheel.

13. The timepiece part according to claim 12 , wherein the wheels of the first pivoting system and the second pivoting system and the intermediate wheels include the same number of teeth.

14. The timepiece part according to claim 1 , wherein one of the wheels of the second pivoting system is kinematically connected to the energy source.

15. The timepiece part according to claim 14 , wherein the wheel of the second pivoting system that is not kinematically connected to the energy source comprises a blocking system in reference to the frame.

16. The timepiece according to claim 1 , wherein one of the inputs of the differential and the satellite carrier is pivoted directly on the support.

17. The timepiece part according to claim 1 , wherein the escapement is an angle escapement.

18. The timepiece part according to claim 1 , wherein the first pivoting system and the second pivoting system cooperate with a single chassis.

19. The timepiece part according to claim 1 , arranged such that any torque induced by the transmission of energy at the kinematic chain that is connected to the energy source induces a counter-torque at the other kinematic chain.

20. A timepiece part comprising:
a frame supporting an energy source;
a chassis comprising a support pivotably mounted inside said chassis around a first axis by a first pivoting system comprising first and second coaxial half-arbors, said chassis being pivotably mounted with respect to the frame around a second axis substantially perpendicular to the first axis by a second pivoting system comprising first and second coaxial half-arbors; and
an escapement arranged on said support, the escapement comprising an escapement wheel and an escapement pinion connected with a shaft,
wherein a first wheel supported by the first half-arbor of the first pivoting system forms a first gear train with a second wheel supported by the first half-arbor of the second pivoting system,
wherein a first wheel supported by the second half-arbor of the first pivoting system forms a gear train with a second wheel supported by the first or second half-arbor of the second pivoting system,
wherein i) one of the wheels supported by the second pivoting system is kinematically connected to the energy source, and the other wheel supported by that pivoting system is stationary relative to the frame, and ii) both wheels supported by the first pivoting system are kinematically connected with an input of a differential comprising transmission discs having a common axis of rotation being parallel to the shaft of the escapement, said differential being arranged to transmit, at its output, the average of the rotations received at its inputs, said output being kinematically connected to the escapement,
wherein the half-arbors of the first pivoting system further include a pinion engaged with an input of the differential,
wherein the first input and the second input of the differential are respectively secured to a first sun wheel and a second sun wheel, respectively meshing with a first satellite and with a second satellite, said satellites being pivotably mounted on a satellite carrier and meshing with each other, said satellite carriers being coaxial with said sun wheels and defining the output of the differential,
wherein the satellite carrier is kinematically connected to the escapement, using a shaft, provided on the one h

Assignees

• Corthesy Yves
• Lvmh Swiss Mft Sa

Inventors

• Corthesy Yves

Classifications

• G04B17/285 Primary

  Tourbillons or carrousels · CPC title

• G04B18/08 Primary

  Component parts or constructional details {(G04B17/32 takes precedence)} · CPC title

• G04B13/02

  Wheels; Pinions; Spindles; Pivots (bearings G04B31/00 {; chain wheels, spindles for chain wheels, also chains and driving weights G04B1/08}) · CPC title