Pivoting assembly for a timepiece

Patent metadata

Field	Value
Publication number	US-9897973-B2
Application number	US-201615046810-A
Country	US
Kind code	B2
Filing date	Feb 18, 2016
Priority date	Mar 9, 2015
Publication date	Feb 20, 2018
Grant date	Feb 20, 2018

Abstract

A pivoting assembly includes an arbor rotatably mounted between two bearings, a member mounted between a shoulder of the arbor and a resilient washer, at least one of the two bearings including a limit stop which is arranged to enter into direct contact with the resilient washer in order to restrict the relative movement between the arbor and its bearings.

First claim

What is claimed is:

1. A pivoting assembly comprising:
two bearing assemblies one of which includes a bridge housing a bearing;
an arbor rotatably mounted between the two bearing assemblies, the arbor having a longitudinal axis, and
a member mounted on the arbor with an aid of at least one resilient washer which is in direct contact with the arbor,
wherein the bridge comprises a limit stop which protrudes from a surface of the bridge toward the at least one resilient washer and is arranged to enter into direct contact with the at least one resilient washer along the longitudinal axis in order to restrict the relative movement between the arbor and the one of the two bearing assemblies.

2. The pivoting assembly according to claim 1 , wherein the member is mounted between a shoulder of the arbor and the at least one resilient washer.

3. The pivoting assembly according to claim 1 , wherein the member is mounted on the arbor between two resilient washers.

4. The pivoting assembly according to claim 1 , wherein the member is a balance spring.

5. The pivoting assembly according to claim 4 , wherein a balance and a roller are also mounted on the arbor.

6. The pivoting assembly according to claim 1 , wherein the member is a wheel.

7. The pivoting assembly according to claim 6 , wherein a pinion is also mounted on the arbor.

8. The pivoting assembly according to claim 1 , wherein the member is a balance.

9. The pivoting assembly according to claim 1 , wherein the two bearing assemblies each include at least one jewel arranged to receive a pivot formed on each end of the arbor.

10. The pivoting assembly according to claim 9 , wherein each at least one jewel is resiliently mounted in the associated bearing assembly in order to dampen shocks received by the arbor.

11. The pivoting assembly according to claim 1 , wherein the two bearing assemblies are respectively mounted in a plate and a bridge.

12. A timepiece including at least one pivoting assembly according to claim 1 .

Assignees

• Nivarox Sa

Inventors

• Stranczl Marc

Classifications

• G04B17/32

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

• G04B13/026

  Physics · mapped topic

• G04B31/00 Primary

  Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor (bearings in general F16C {; manufacture and composition of springs G04B1/145; suspension of oscillating weights G04B5/18; suspension of a pendulum G04B17/02; bearings for electrical measurement apparatus G01R1/10, G01R1/12, G01R11/12, G01R11/14; inserting jewels A44C17/04; inserting cutting diamonds B23P5/00; devices for fixation of bearing jewels, bearing sleeves, or the like G04D3/04}) · CPC title

• G04B31/04

  with jewel hole and cap jewel {(jewel bearings with jewel hole and cap jewel G04B31/0082; tools for inserting jewel bearings G04D3/042)} · CPC title

• G04B15/14

  Component parts or constructional details, e.g. construction of the lever or the escape wheel {(assembly and manufacture of the spring G04B1/145; assembly and manufacture of components, e.g. pinions, spindles G04B13/02; lubrication of clockwork bearings G04B31/008; oils for clockwork bearings in general G04B31/08)} · CPC title