Switching mechanism in an electronic watch

Details Switching mechanism in an electronic watch Switching mechanism in an electronic watch

1975-09-19

1978-02-14

Scott, James R.

Electricity: circuit makers and breakers

Special application

200153V, 58 23R, 58 50R, 58 855, H01H 332, G04C 300

Patent

active

040740935

ABSTRACT:
A switching mechanism in an electronic watch including a clicking mechanism comprising a clicking cam which is mounted for rotation on an operative rod and a spring which is fixed to a base plate. The clicking cam is provided with a peripheral projecting portion. The spring is provided with a convex portion. In a switching operation, the projecting portion of the cam engages with the convex portion of the spring during the rotation of the cam which is rotated together with the operative rod. After passing through a dead point where the cam disengages with the spring, the cam continues to rotate due to the restoring force of the spring. Then, a click sound is produced at the engagement and the disengagement therebetween.

REFERENCES:
patent: 3519777 (1970-07-01), Kaiser
patent: 3526088 (1970-09-01), Meitinger
patent: 3581028 (1971-05-01), Valbona
patent: 3733803 (1973-05-01), Hiraga et al.
patent: 3762153 (1973-10-01), Komiyama et al.
patent: 3841081 (1974-10-01), Komaki
patent: 3945190 (1976-03-01), Kimura et al.
patent: 3975896 (1976-08-01), Kasama
patent: 3975897 (1976-08-01), Naito
patent: 3978296 (1976-08-01), Moriya et al.

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