Motor-vehicle door latch

Details Motor-vehicle door latch Motor-vehicle door latch

1990-07-31

1991-12-10

Smith, Gary L.

Closure fasteners

Bolts

Swinging

E05C 326

Patent

active

050711784

ABSTRACT:
A motor-vehicle door latch for mounting on a door closable inward against a body part has a latch element fixed on the part and displaceable into and out of a latch housing and a latch fork pivotal on the housing. This fork is pivoted into a closed position on inward displacement of the latch element into the housing and the latch fork has an inwardly directed face bearing inward against the latch element in the closed position with the latch element in the housing. A latch pawl is pivotally engageable with the fork in a holding position to retain same in the closed position. The latch pawl can be pivoted out of contact with the fork to release same and allow the door to open. A blocking member in the housing has an outwardly directed face and is displaceable in the housing between a blocking position with the blocking face confronting and relatively closely juxtaposed with the fork face and an unblocking position with the blocking face spaced more remotely from the fork face. A link between the latch pawl and the blocking member displaces the blocking member into the blocking position and pressed the blocking-member face outward against the latch element in the closed position of the latch pawl. Thus the latch element is trapped between the faces. The blocking member also moves the blocking member into the unblocking position when the latch pawl is not in the closed position to permit overtravel of the fork.

REFERENCES:
patent: 3334935 (1965-07-01), Eddy
patent: 3592496 (1971-07-01), Ploughman
patent: 3773368 (1973-11-01), Atwood et al.
patent: 4165112 (1979-08-01), Kleefeldt
patent: 4203621 (1980-05-01), Noel et al.
patent: 4783102 (1988-11-01), Bernard
patent: 4886307 (1989-12-01), Ruckert

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