Optimised timepiece barrel

A barrel and clockwork technology, applied to clocks, clocks, mechanically driven clocks, etc., can solve problems such as wear and damage to the pivot
CN105829976AInactive Publication Date: 2016-08-03ETA SA MFG HORLOGERE SUISSE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ETA SA MFG HORLOGERE SUISSE
Publication Date
2016-08-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a timepiece barrel (1) comprising a drum (2) with a first spring bearing surface (20) of a chamber (4) for holding a spring (3), comprising a bore (11) for guiding the pivotal movement of a core (9) and bordered by a lower abutment bearing surface (12) adjacent to said side inner wall (5), and by an outer abutment bearing surface (13). The first spring bearing surface (20) on the chamber (4) side comprises a DLC coating, and the bore (11) is free from any DLC coating. The invention also relates to a method for manufacturing such a barrel including: manufacturing such a drum (2); protecting at least the bore (11) in order to prevent the effects of an anti-wear or DLC treatment; and performing a DLC treatment on the entire drum (2) with the exception of the area thus protected.
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Description

technical field

[0001] The invention relates to a timepiece barrel comprising at least one barrel for receiving at least one helically wound mainspring in a chamber partially defined by a first mainspring bearing surface, so Said barrel comprises at least one first hole guiding the pivoting of the core or arbor, said first hole being delimited on one side by a first inner abutment surface adjacent to said first spring bearing surface, at The other side is bounded by the first outer abutment surface.

[0002] The invention relates to a timepiece movement comprising at least one such barrel.

[0003] The invention relates to a timepiece comprising at least one such movement and / or at least one such barrel.

[0004] The invention relates to a method of manufacturing a timepiece barrel to protect said barrel from wear due to friction with a mainspring.

[0005] The present invention relates to the field of timepiece mechanisms comprising springs in frictional contact, and more ...

Claims

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