Title:
時計用部品とその製造方法、ムーブメントおよび時計
Document Type and Number:
Japanese Patent JP7170571
Kind Code:
B2
Abstract:
To provide a timepiece component which reduces misalignment of a hairspring and firmly fixes an inner end of the hairspring to a collet, and to provide a manufacturing method therefor, a movement, and a timepiece.SOLUTION: A timepiece component comprises a hairspring 43, a collect 46 to which the hairspring 43 is fixed, and a welding material 71 that joins the hairspring 43 and the collect 46, where an inner end 43a of the hairspring 43 is fixed to the collect 46 by the welding material 71. The welding material 71 has a thermal conductivity greater than that of the collet 46, and a melting point lower than that of the hairspring 43.SELECTED DRAWING: Figure 3
Inventors:
Teruhisa Sugiyama
Application Number:
JP2019057566A
Publication Date:
November 14, 2022
Filing Date:
March 26, 2019
Export Citation:
Assignee:
Seiko Instruments Inc.
International Classes:
G04B17/32; G04B17/06
Domestic Patent References:
| JP2013167532A | ||||
| JP5051762A | ||||
| JP5116960A |
Attorney, Agent or Firm:
田▲崎▼ 聡
Suzuki Shingo
Kazuzumi Nishizawa
Suzuki Shingo
Kazuzumi Nishizawa
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