Door latch with block-out type child safety feature

Details Door latch with block-out type child safety feature Door latch with block-out type child safety feature

1989-10-16

1990-11-13

Nicholson, Eric K.

Closure fasteners

Bolts

Swinging

292DIG27, 292DIG65, E05B 300

Patent

active

049696734

ABSTRACT:
This invention relates generally to a child safety vehicle door lock with a blocking arrangement for selectively blocking operation of an operating handle to prevent release of the door latch by an unauthorized person such as a child passenger. The blocking arrangement includes a blocking lever of plastic material pivotally mounted of the latch frame for manual movement between blocking and non-blocking positions. The blocking lever and frame have detent elements for releasably locating the blocking lever in each of its positions. The blocking lever includes a portion, which when in the blocking position, is engaged on one side by the frame and engaged on the other side by the a portion of the operating lever.

REFERENCES:
patent: 3111339 (1963-11-01), Nadeau
patent: 3697105 (1972-10-01), Marx
patent: 3923329 (1975-12-01), Torii et al.
patent: 4334704 (1982-06-01), Yamada
patent: 4487441 (1984-12-01), Miyamoto et al.
patent: 4492395 (1985-01-01), Yamada
patent: 4756563 (1988-07-01), Garwood et al.

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