Door lock device having a condition detecting switch

Details Door lock device having a condition detecting switch Door lock device having a condition detecting switch

1989-07-20

1991-07-30

Nicholson, Eric K.

Closure fasteners

Bolt casings

292201, 292DIG23, E05C 326

Patent

active

050354540

ABSTRACT:
A door lock device having a key handling lever for rotating a locking arm selectively to a locked and unlocked position. A switch for detecting the locked and unlocked position of the locking arm has a main body member attached to a sub housing of the device. An arm element is pivotably attached to the main body member and is connected to and movable with the locking arm. A first switch contact is formed on a surface of the main body member; and a second switch contact is formed on the arm element. The switch contacts are in engagement when in a locked condition and out of engagement when in an unlocked condition.

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patent: 4842313 (1989-06-01), Boyko et al.
patent: 4904006 (1990-02-01), Hayakawa et al.

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