Title:
HOME POSITION DETECTING DEVICE OF ANALOG CLOCK MOVEMENT
Document Type and Number:
Japanese Patent JP3219895
Kind Code:
B2
Abstract:
PURPOSE: To obtain the time adjustment signal of an analogue clock by surely detecting the home position by using a relatively simple device which does not require the complicated working precision, adjustment, etc.
CONSTITUTION: On a planetary gear 12 which is installed in a turnable manner on a minute hand feeding gear 10 for turning a minute hand shaft 2 and revolves an hour hand shaft, meshed with a sun gear and an hour hand feeding gear, cams 12S and 12T which press home position switches 22 and 23 and press- attached a switch piece 23b and others to the pads 20a and 20b of a printed circuit board 20 and obtain each conduction signal at the time of 0:00 and 12:00 are installed.
Inventors:
Masato Suzuki
Masato Fukushima
Masato Fukushima
Application Number:
JP9659793A
Publication Date:
October 15, 2001
Filing Date:
March 31, 1993
Export Citation:
Assignee:
Amano Co., Ltd.
International Classes:
G04B27/00; G04C3/00; G04C9/08; (IPC1-7): G04C9/08; G04C3/00
Domestic Patent References:
| JP6142830B2 | ||||
| JP5116310Y1 |
Attorney, Agent or Firm:
Masakazu Yajima
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