Title:
MANUFACTURING METHOD FOR CLOCK DIAL PLATE
Document Type and Number:
Japanese Patent JP2003270362
Kind Code:
A
Abstract:
To provide a manufacturing method for a clock dial plate with a little warp.
Using a hand mounting hole 3 arranged in the center of a dial plate base board 1, to which glass powder 4 is applied, and a through-hole 12 in a sintered jig plate 11, the dial plate base board 1 is screwed to the sintered jig plate 11 with high rigidity by means of a bolt 14 and a nut 15. Then, the dial plate base board 1, to which the glass powder 4 is applied, is heated and burnt for forming a glass melted layer 4a, and consequently, a warp due to thermal deformation of the clock dial plate 20 is reduced.
Inventors:
TAKAYAMA YASUHIKO
ITO MOTOYOSHI
SATO MASAAKI
YAMAGUCHI KATSUYUKI
ITO MOTOYOSHI
SATO MASAAKI
YAMAGUCHI KATSUYUKI
Application Number:
JP2002073391A
Publication Date:
September 25, 2003
Filing Date:
March 18, 2002
Export Citation:
Assignee:
KAWAGUCHIKO SEIMITSU KK
CITIZEN WATCH CO LTD
CITIZEN WATCH CO LTD
International Classes:
G04B19/06; B44C1/02; G04D3/00; (IPC1-7): G04B19/06; B44C1/02; G04D3/00
Attorney, Agent or Firm:
Takamune Hiroaki