Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
MANUAL CORRECTION MECHANISM FOR ANALOG WATCH
Document Type and Number:
Japanese Patent JP2001153973
Kind Code:
A
Abstract:

To provide a manual correction mechanism for analog watch, by which two mutually independently driven pointers can be corrected simply with one manual correction gear.

A first train wheel 6 which transmits the driving force of a first stepping motor 4 to an hour hand, and a second train wheel 7 which transmits the driving force of a second stepping motor 5 to a minute hand, are provided. A guide passage 2a (3a) which is extended between a first position B on a concentric circle which uses the shaft 15a of a manual correction gear 15 as the center and a second position is formed. A movement gear 13 in which the guide passage 2a (3a) is formed in such a way that its shaft can be moved is installed. When the manual correction gear 15 is turned to one direction, the movement gear 13 is engaged with the hour hand wheel 6c of the first wheel train 6 in the second position. When the manual correction gear 15 is turned to the other direction, the movement gear 13 is engaged with the second transmission gear 7b of the second train wheel 7 in the first position B.


Inventors:
NAKADA ETSUO
Application Number:
JP33854899A
Publication Date:
June 08, 2001
Filing Date:
November 29, 1999
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
RHYTHM WATCH CO
International Classes:
G04C3/14; G04B27/00; G04C9/04; G04R60/14; (IPC1-7): G04C3/14; G04B27/00; G04C9/02