EP 0950933 A1 19991020 - ANALOG ELECTRONIC CLOCK
Title (en)
ANALOG ELECTRONIC CLOCK
Title (de)
ELEKTRONISCHE ANALOGUHR
Title (fr)
MONTRE ELECTRONIQUE ANALOGIQUE
Publication
Application
Priority
- JP 9800033 W 19980108
- JP 141697 A 19970108
- JP 256997 A 19970110
Abstract (en)
In an analog electronic timepiece according to the present invention, a step motor (1) which retains a small holding energy is used, and in order to make the value of a disturbance energy which the step motor (1) receives through an external impact less than the holding energy value which the step motor (1) retains, a weight 20 is added, to lessen a moment of the whole rotary body, at least to a part of the rotary body including a hand (8) and train wheels (11, 2, 12, 3) for the rotation of the hand. Alternatively, a thin part, a through hole, or a notch may be formed at least in a part of said rotary body, or a part of the rotary members may be formed by a combination of members with different specific gravities from each other. Transmission of the disturbance energy occurring at the hand part to the step motor (1) may be prevented by providing a reverse transmission preventing gear at a part of said train wheels. <IMAGE>
IPC 1-7
IPC 8 full level
G04B 19/02 (2006.01); G04B 19/04 (2006.01)
CPC (source: EP)
G04B 19/02 (2013.01); G04B 19/042 (2013.01)
Designated contracting state (EPC)
CH DE FR LI
DOCDB simple family (publication)
WO 9830939 A1 19980716; CN 1243579 A 20000202; EP 0950933 A1 19991020; EP 0950933 A4 20000405; JP 3245181 B2 20020107
DOCDB simple family (application)
JP 9800033 W 19980108; CN 98801640 A 19980108; EP 98900177 A 19980108; JP 53074498 A 19980108