Door lock position sensor

Details Door lock position sensor Door lock position sensor

1988-04-25

1989-03-21

Envall, Jr., Roy N.

Electricity: circuit makers and breakers

Special application

Actuated concurrently with operation or use of art device

H01H 300

Patent

active

048145572

ABSTRACT:
In a door lock having a housing and a latch plate which is pivotally connected to the housing through a pivot shaft, there is arranged a position sensor for detecting an angular position of the latch plate. The sensor comprises a rotary switch securely connected to the housing, the rotary switch having a rotating shaft which causes ON and OFF conditions of the switch upon rotation thereof; and a link mechanism operatively arranged between the rotating shaft and the pivotal latch plate so that the pivotal movement of the latch plate induces a simultaneous pivotal movement of the rotating shaft of the switch. The rotary switch is placed at a position other than a position where an axis of the pivot shaft is placed.

REFERENCES:
patent: 3857001 (1974-12-01), Quantz
patent: 4249161 (1981-02-01), Mohnhaupt
patent: 4468545 (1984-08-01), Slavin

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