Electronic watch with movable detecting member

Details Electronic watch with movable detecting member Electronic watch with movable detecting member

1980-06-10

1982-09-07

Roskoski, Bernard

Horology: time measuring systems or devices

Regulating means

For setting

368 76, 368157, G04C 900

Patent

active

043487521

ABSTRACT:
The watch comprises a detecting device including a resilient blade, the free end of which cooperates with a disk. When a slot in the edge of the disk is oriented in the direction of the blade, the latter vibrates owing to its own resiliency. The two edges of the slot are preferably bent in opposite directions in order to increase the bending stress on the blade just before its abrupt release into the slot. A piezoelectric strip fixed to the blade registers voltage fluctuations, the polarity of which corresponds to the direction in which the blade moves.

REFERENCES:
patent: 3553957 (1971-01-01), Dome et al.
patent: 3855781 (1974-12-01), Chihara et al.
patent: 4091612 (1978-05-01), Meisner et al.
patent: 4196584 (1980-04-01), Oda
patent: 4209976 (1980-07-01), Flumm

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