Gm Global Technolgoy Operations, Inc.

Rita M Paulik

Alfred L Portelli

Jeffrey L Konchan

Donald Michael Perkins

Frank Joseph Arabia, Jr

Jerry Paulik

Joseph M Johnson

Michael Antonio Ciavaglia

Ronald P Rimbey

Jiri Paulik

Eluid David Carter

Michael Todd Moury

A vehicle door latch has a forkbolt, a detent that holds the forkbolt in a latched position, a release mechanism that moves the detent to release the forkbolt and a lock mechanism for disabling the release mechanism. The detent is moved by an intermittent lever that is part of the release mechanism and part of the locking mechanism. A lock lever forming part of the lock mechanism moves the intermittent lever back and forth between an unlock position where the intermittent lever drives the detent to release the forkbolt and a lock position where the intermittent lever free wheels with respect to the detent. The intermittent lever is pivotally connected to an unlatching lever of the release mechanism that is operated by inside and outside release levers. The lock lever includes a lower lock lever, an upper lock lever and a spring that stores energy when the lower lock lever pivots with respect to the upper lock lever. The lock mechanism includes an inside lock lever and an outside lock lever for operating the lower lock lever. The door latch also includes a motor driven actuator assembly for operating the lock mechanism and a double lock assembly for disabling the lock assembly so that the door latch cannot be unlocked by the inside lock lever.

Vehicle door latch

A vehicle door latch has a forkbolt, a detent that holds the forkbolt in a latched position, a release mechanism that moves the detent to release the forkbolt, a lock mechanism for disabling the release mechanism, an inside lock lever for operating the lock mechanism and a double lock for disabling the inside lock lever. The detent is moved by an intermittent lever that is part of the release mechanism and part of the locking mechanism. A composite lock lever forming part of the lock mechanism moves the intermittent lever back and forth between an unlock position where the intermittent lever drives the detent to release the forkbolt and a lock position where the intermittent lever free wheels with respect to the detent. The intermittent lever is pivotally connected to an unlatching lever of the release mechanism that is operated by inside and outside release levers. The composite lock lever includes a lower lock lever, an upper lock lever and a spring that stores energy when the lower lock lever pivots with respect to the upper lock lever. The lock mechanism includes an inside lock lever and an outside lock lever for operating the lower lock lever. When engaged, the double lock assembly blocks the upper lock lever so that the vehicle door latch cannot be unlocked by the inside lock lever.

Vehicle door latch with double lock

A ratchet for a vehicle closure latch that mounts on a vehicle closure so as to engage and retain a striker mounted on a vehicle body when the vehicle closure is closed. The ratchet comprises a metal substrate and a plastic covering, the metal substrate having a primary latching tooth for engaging a pawl to retain the ratchet in a latched position and a striker tooth for engaging a striker when the ratchet is in an unlatched position, and the plastic covering having a bumper with a series of spaced apart cantilevered fingers to reduce the noise generated by contact of the ratchet with another portion of the closure latch, the fingers being joined to an integral base and being inclined with respect thereto.

Vehicle closure latch

A ratchet type vehicle closure latch is secured to a vehicle door by a pair of bolts. One is located in proximity to engaged teeth of a rotatable ratchet and pawl and the other is located in proximity to engaged portions of the ratchet and a striker. The closure latch has a plastic housing that includes a thin integral plastic sleeve that breaks away in service to provide a sleeve bearing that eliminates metal-on-metal contact between the rotatable ratchet and a ratchet stud. The ratchet stud and a pawl stud hold several parts of the door latch together. The door latch has several non-metallic parts and an insert molded ratchet for minimizing the metal-on-metal engagement, operational noise and lubrication requirements. Some parts are non-handed and other parts are identical to reduce manufacturing costs.

Vehicle closure latch having plastic coated ratchet

A vehicle door latch has a selectively activated security lock that prevents a vehicle door from being unlatched by an inside door handle. The security lock is activated and deactivated when the vehicle door is open by inserting a key or other probe-like instrument into a slot in an inner panel of the vehicle door to manipulate a moveable arm of the security lock.

A door latch coupling arrangement includes a detent release member connected to an inside operator by a freewheeling connection. An intermittent member is movable between coupled and uncoupled positions with respect to the detent release member and pivotally connected to the inside operator to establish an operative connection between the detent release member and inside operator when in coupled position. A manual control member shifts the intermittent member between its coupled and uncoupled positions.

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Sterling Heights, MI, United States of America

Rita M Paulik