Electricity: circuit makers and breakers – Electric switch details – Actuators
Patent
1999-06-09
2000-04-11
Friedhofer, Michael
Electricity: circuit makers and breakers
Electric switch details
Actuators
H01H 2180
Patent
active
060490489
ABSTRACT:
In order to rotatably support a joggle knob on a front panel, a recess is formed in the part of the front panel where the joggle knob is supported, and cuts are formed along the periphery of the recess in such a manner that they are coaxial with the center of turn. Furthermore, the joggle knob has locking pawls whose end portions are wedge-shaped in section. The locking pawls are inserted into the cuts, respectively. In addition, on the side of the inner surface of the front panel, sloped boards are arranged which have sloped surfaces along the loci of turn of the locking pawls. Hence, when the joggle knob is turned, the locking pawl is moved on the sloped board to push the latter backwardly, whereby a tact switch is positively pushed which is arranged behind the front panel.
REFERENCES:
patent: 4038504 (1977-07-01), McAnulty et al.
patent: 4052582 (1977-10-01), Mullen et al.
patent: 4539444 (1985-09-01), Senoh
patent: 5794766 (1998-08-01), Morita et al.
patent: 5819597 (1998-10-01), Sato et al.
Friedhofer Michael
Funai Electric Co. Ltd.
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