Horological carriage-stop mechanism with stop wheel

Patent metadata

Field	Value
Publication number	US-11586147-B2
Application number	US-202016899115-A
Country	US
Kind code	B2
Filing date	Jun 11, 2020
Priority date	Jul 23, 2019
Publication date	Feb 21, 2023
Grant date	Feb 21, 2023

Abstract

A regulating device including an oscillator and capable of blocking this oscillator carried by the carriage of a tourbillon or karussel, and including a stop wheel, coaxial to the carriage wheel and limited in angular mobility by a stop pin limited by a slot of the carriage, and including a toothing engaging with an external control member for the rotation thereof, the carriage carries a resilient element arranged so as to bear against a wheel set of the oscillator to stop the latter when the control member is in an active position, and to remain remote from the carriage and from any wheel set of the oscillator when the control member is in a rest position, wherein the stop wheel is in another angular position relative to the carriage wheel.

First claim

The invention claimed is:

1. A horological regulating device for a watch, comprising an oscillator, and comprising means for limiting a variation of rate of said oscillator in different positions of said watch in space, said regulating device comprising at least one tourbillon or a karussel, which comprises a carriage which is mounted such that it pivots about a carriage axis relative to a plate, which carries a fixed wheel when said regulating device comprises a tourbillon, which carriage carries said oscillator and comprises a carriage wheel arranged so as to be driven by an energy source of the watch or of a movement by way of a gear train, and which carriage carries an escapement mechanism arranged so as to engage with said oscillator, and comprising an escape pinion meshing with said fixed wheel when said regulating device comprises a tourbillon or meshing with a wheel of said gear train, when said regulating device comprises a karussel, wherein said regulating device is capable of blocking said oscillator and comprises stopping means with a stop wheel coaxial to said carriage wheel relative to which an angular mobility thereof is limited by a stop pin limited by a slot comprised in said carriage or in a lower bridge comprised in said carriage, said stop wheel comprising a toothing arranged such that it engages with a control member external to said tourbillon or karussel for rotating said stop wheel under the effect of a movement exerted by said control member, and wherein said carriage carries a resilient element, which is arranged so as to bear against a wheel set of said oscillator to stop the latter when said control member is in an active position wherein said stop wheel is in a first angular position relative to said carriage wheel, and which is arranged so as to remain remote from any wheel set of said oscillator when said control member is in a rest position, wherein said stop wheel is in a second angular position relative to said carriage wheel.

2. The regulating device according to claim 1 , wherein said wheel set of said oscillator capable of receiving said resilient element bearing thereagainst, is a stop cam synchronous with an inertial mass comprised in said oscillator, and arranged so as to stop the angular indexing of said inertial mass in a position that differs from the dead centre of said oscillator to ease restarting of said oscillator when said stop wheel is released.

3. The regulating device according to claim 2 , wherein said stop cam is coaxial with said inertial mass, and is arranged such that said stop cam pivots about said carriage axis.

4. The regulating device according to claim 1 , wherein said resilient element is arranged so as to bring said stop wheel back into a rest position relative to said carriage wheel, in the absence of traction on said stop wheel.

5. The regulating device according to claim 1 , wherein said stop wheel comprises a pointed and inclined toothing to allow same to engage by hooking with said control member, regardless of the angular position of said stop wheel.

6. The regulating device according to claim 1 , wherein said resilient element is or comprises a spring fastened to said carriage or to a lower bridge of said carriage, which lower bridge comprises said slot for limiting the relative angular travel between said stop wheel and said carriage wheel, the ends of said slot forming abutment positions of said stop pin which define said first angular position and said second angular position of said stop wheel relative to said carriage wheel.

7. The regulating device according to claim 1 , wherein said oscillator is a sprung balance assembly.

8. The regulating device according to claim 1 , wherein said escapement mechanism is a coaxial escapement mechanism, and wherein said escape pinion is an intermediate escape pinion.

9. A watch comprising a horological movement comprising energy storage and/or distribution means, an oscillator, hand-setting means, and a regulating device according to claim 1 , comprising said oscillator, wherein said tourbillon or karussel constitutes a display member of said watch, or is arranged so as to drive at least one display member of said watch, and wherein said hand-setting means constitute or control said control member.

10. The watch according to claim 9 , wherein said regulating device comprises a tourbillon, and wherein said escape pinion meshes with said fixed wheel comprised in said plate.

11. The watch according to claim 9 , wherein said regulating device comprises a karussel, in that said movement comprises a gear train with a third wheel and a fourth wheel, and said escape pinion meshes with a wheel of the gear train or said third wheel or said fourth wheel.

Assignees

• Omega Sa

Inventors

• Feyer Julien
• Jeanrenaud Timothee

Classifications

• G04B17/06

  Oscillators with hairsprings, e.g. balance {(electrically driven balances G04C3/04; contacts actuated by a balance G04C13/065)} · CPC title

• G04B17/285 Primary

  Tourbillons or carrousels · CPC title

• G04B17/32 Primary

  Component parts or constructional details, e.g. collet, stud {, virole or piton} · CPC title

• G04B29/04

  Connecting or supporting parts · CPC title

• G04B17/20

  Compensation of mechanisms for stabilising frequency · CPC title