Title:
MANUFACTURING METHOD FOR CALENDAR CORRECTION WHEEL FOR TIMEPIECE
Document Type and Number:
Japanese Patent JP2001324577
Kind Code:
A
Abstract:
To provide a manufacturing method for a calendar correction wheel for a timepiece capable of surely reducing sags without carrying out plural times of shaving.
The main process of this manufacturing method is as follows: a material 31 to be machined is formed into such a predetermined shape that the plate thickness of a blanked part is increased; the formed product is formed into a nearly gear-like shape by half-blanking it from a part having a large thickness; the surface of the half-blanked nearly gear-like product 32 is flattened; and the section surface of the gear-like product 32 is shaved.
Inventors:
OKUHARA MASASHIGE
Application Number:
JP2000144505A
Publication Date:
November 22, 2001
Filing Date:
May 17, 2000
Export Citation:
Assignee:
SEIKO EPSON CORP
International Classes:
G04B13/02; B21D22/02; B21D28/00; B21D28/10; B21D28/16; B21D35/00; B21D53/28; (IPC1-7): G04B13/02; B21D22/02; B21D28/00; B21D28/10; B21D28/16; B21D35/00
Attorney, Agent or Firm:
Muneharu Sasaki (3 outside)
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