Device of balancing lever in a multiplicative key

Details Device of balancing lever in a multiplicative key Device of balancing lever in a multiplicative key

1999-08-04

2000-02-01

Friedhofer, Michael

Electricity: circuit makers and breakers

Electric switch details

Actuators

H01H 1370

Patent

active

060205660

ABSTRACT:
A device of balancing lever in a multiplicative key used in a keyboard comprises a cap, a base with a pair of guiding elements, a bridge support, and a balancing lever. Each gliding element has a hole, both ends of the balancing lever are symmetrically bent upward at a suitable angle. The two ends of the balancing lever pass through the holes on the pair of guiding elements and are supported therein at fixed positions such that the cap is kept in a stable orientation when pressed on.

REFERENCES:
patent: 4709128 (1987-11-01), Odagawa
patent: 5669723 (1997-09-01), Chang
patent: 5823325 (1998-10-01), Lin
patent: 5941373 (1999-08-01), Cheng

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