Motor-vehicle door latch with power assist

Details Motor-vehicle door latch with power assist Motor-vehicle door latch with power assist

1994-02-14

1995-07-18

Cuomo, Peter M.

Closure fasteners

Bolts

Swinging

292DIG23, E05C 326

Patent

active

054334969

ABSTRACT:
A motor-vehicle door latch bolt has a housing in which a door bolt is receivable and a latch fork formed with a seat and with at least one detent and pivotal on the housing between a locked position engaged around the bolt and holding it deep in the recess and an unlocked position permitting the bolt to move into and out of the recess. A support link pivotal on the housing carries a latch pawl pivotal into and out of a holding position engaging the detent and preventing pivoting of the fork into the unlocked position. A motor-driven crank rotatable adjacent the fork is coupled to the support link for pivoting the support link and retaining pawl as the crank rotates. An inner lever pivoted on an assembly pivot has an abutment and a detent, and is coupled to the latch pawl, and an outer lever pivoted on the assembly pivot has an abutment engageable with the inner-lever abutment, and is operable from outside the door. A crank lever pivoted on the assembly pivot has one arm connected to the support link and another arm. An opening lever pivoted on the housing has an outer end connected by an opening link to the other arm of the crank lever. A coupling pawl pivoted on the other arm of the crank lever is engageable with the detent of the inner lever.

REFERENCES:
patent: 4364249 (1982-12-01), Kleefeldt
patent: 4979384 (1990-12-01), Malesko et al.
patent: 4998758 (1991-03-01), Kowalczyk et al.
patent: 5066054 (1991-11-01), Ingenhoven
patent: 5074603 (1991-12-01), Brackmann
patent: 5100185 (1992-03-01), Menke et al.
patent: 5232253 (1993-08-01), Tamiya
patent: 5236234 (1993-08-01), Norman

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