Title:
COMPONENT FOR TIMEPIECE MOVEMENT
Document Type and Number:
Japanese Patent JP2014137377
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a pivotal pin that restricts the sensitivity to a magnetic field and achieves the hardness satisfying the requirement for abrasion resistance and impact resistance.SOLUTION: A pivotal pin 1 for a timepiece movement comprises at least one tenon 3 at at least one of the ends. The at least one tenon 3 is made of a composite material having a metal matrix containing at least one metal selected from nickel, titanium, chromium, zirconium, silver, gold, platinum, silicon, molybdenum, aluminum, and an alloy of the above-mentioned metal. In the matrix, in order to restrict the sensitivity to a magnetic field of the pivotal pin 1, hard particles selected from WC, TiC, TaC, TiN, TiCN, Al2O3, ZrO2, Cr2O3, SiC, MoSi2, AlN, and a combination of them are diffused.
Inventors:
CEDRIC VON GRUENLGEN
CHARBON CHRISTIAN
VERARDO MARCO
CHARBON CHRISTIAN
VERARDO MARCO
Application Number:
JP2014006506A
Publication Date:
July 28, 2014
Filing Date:
January 17, 2014
Export Citation:
Assignee:
OMEGA SA
International Classes:
G04B15/14; G04B13/02; G04B17/06
Domestic Patent References:
| JP2007533973A | 2007-11-22 | |||
| JPS62222041A | 1987-09-30 | |||
| JPH0525513A | 1993-02-02 | |||
| JPH10310832A | 1998-11-24 | |||
| JP2003214526A | 2003-07-30 |
Foreign References:
| US20110292770A1 | 2011-12-01 | |||
| WO2011161193A1 | 2011-12-29 |
Attorney, Agent or Firm:
Masaki Yamakawa
Shigeki Yamakawa
Shigeki Yamakawa
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