Electricity: circuit makers and breakers – Multiple circuit control – Multiple switch
Patent
1998-02-06
1999-10-12
Scott, J. R.
Electricity: circuit makers and breakers
Multiple circuit control
Multiple switch
200 5033, 200 5036, H01H 926, H01H 1368
Patent
active
059658541
ABSTRACT:
This invention is an interlocking device for a push-button switch in compact size and with a mechanically simple construction, capable of realizing interlocking of a push-button switch having a pair of push buttons facing each other and being downwardly movable in multiple stages by being pressed, while sufficiently securing stroke in each stage of the push buttons. A switch body having a fixed contact is provided with two push buttons, having mobile contacts, facing each other and being downwardly movable in multiple stages. An interlocking member for mobile contact is swingably disposed, for preventing closing of the mobile contact of at least one push button due to touching of the mobile contact the two push buttons are pressed, on the switch body at a position lower than the push buttons, with approximately the mid-point of two push buttons.
REFERENCES:
patent: 5045647 (1991-09-01), Kato
patent: 5382836 (1995-01-01), Umemura
patent: 5473203 (1995-12-01), Umemura
patent: 5576525 (1996-11-01), Umemura
patent: 5646382 (1997-07-01), Moriya
Scott J. R.
Shinkoh Electric Co., Ltd.
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