Seat board for clock

Application Number: 00105354
Application Date: 2000.03.30
Publication Number: 1315680
Publication Date: 2001.10.03
Priority Information:
International: G04B13/00;G04C3/14
Applicant(s) Name: Lishven Timing Industry Co., Ltd.
Inventor(s) Name: Ito Hiroshi;Kabe Hiroshi;Fukuoka Shigeru
Patent Agency Code: 31100
Patent Agent: hou jiayou
Abstract A backplate for both step-type and continuous-type hand motion mechanisms of clock is disclosed. The space length between no.4 bearing parts of no.5 gear and no.1 bearing part of rotor is equal to the sum of pitch radii of the rotor pinion and no.5 gear for step-type mechanism, but greater than the sum of the addendum radii of no.5 gear for continuous type and the rotor pinion.