Vehicle compartment latch

• US 6,364,379 B1
• Filed: 12/02/1999
• Issued: 04/02/2002
• Est. Priority Date: 12/02/1999
• Status: Expired due to Fees

• Current Assignee: GM Global Technology Operations Incorporated (General Motors Company)
• Original Assignee: General Motors Corporation (General Motors Company), Magna International Incorporated
• Inventors: Campbell, Mark E., Roberts, Richard A., Tudora, Sorin S., Wilmore, Jack C., Berry, Lindley T., Ghorghorian, Dikran
• Primary Examiner(s): ESTREMSKY, GARY WAYNE
• Application Number:
  US09/453,044
• Time in Patent Office: 852 Days
• Field of Search: 292/216, 292/DIG.43, 292/DIG.65
• US Class Current: 292/216
• CPC Class Codes: E05B 77/14 Specially controlled locking actions in case of open doors or in case of doors moved from an open to a closed position, e.g. lock-out prevention or self-cancelling
• CPC Class Codes: E05B 83/16 Locks for luggage compartments, car boot lids or car bonnets
• CPC Class Codes: Y10S 292/43 Rear deck lid latches
• CPC Class Codes: Y10S 292/65 Emergency or safety
• CPC Class Codes: Y10T 292/1047 Closure

Abstract

A vehicle closure has a compartment latch that includes a safety device that is automatically engaged to disable the compartment latch when the compartment latch is unlatched. The safety device must be reset manually to restore normal operation of the compartment latch. Manual resetting requires repeated manipulation of a pawl lever to avoid inadvertent disengagement of the safety device, particularly by children.

Claims

1. A vehicle compartment latch comprising:

a support that is adapted for fastening to a closure;

a fork bolt that moves between an open position and a closed position;

a pawl lever that moves between a detent position and a release position, the detent lever retaining the fork bolt in the closed position when in the detent position and releasing the fork bolt for return to the open position when in the release position; and

a safety device including a rotary cam that moves between an engaged position and a reset position and to an interim, partially reset position between the engaged position and the reset position, the safety device holding the pawl lever in the release position when the rotary cam is in the engaged position and in the partially reset position and allowing the pawl lever to return to the detent position when in the reset position.

2. The vehicle compartment latch as defined in claim 1 wherein the release lever has a stop pin that engages a first abutment of the rotary cam to hold the cam in the engaged position and a second abutment to hold the cam in the interim, partially reset position.

3. The vehicle compartment latch as defined in claim 2 wherein the cam has a guard rib between the first abutment and the second abutment to insure that the stop pin engages the second abutment.

4. The vehicle compartment latch as defined in claim 2 wherein the stop pin engages a cam surface of the cam when the pawl lever is in the detent position so as to move the cam to the engaged position when the pawl lever is moved to the release position.

5. The vehicle compartment latch as defined in claim 3 wherein the stop pin engages a cam surface of the cam when the pawl lever is in the detent position so as to move the cam to the engaged position when the pawl lever is moved to the release position.

6. A vehicle compartment latch comprising:

a support that is adapted for fastening to a closure;

a fork bolt that moves between an open position and a closed position;

a pawl lever that moves between a detent position and a release position, the detent lever retaining the fork bolt in the closed position when in the detent position and releasing the fork bolt for return to the open position when in the release position; and

a safety device including a rotary cam that moves between an engaged position and a reset position, the safety device holding the pawl lever in the release position when the rotary cam is in the engaged position and allowing the pawl lever to return to the detent position when in the reset position;

wherein the release lever has a stop pin that engages an abutment of the rotary cam to hold the cam in the engaged position.

7. The vehicle compartment latch as defined in claim 6 wherein the stop pin engages a cam surface of the cam when the pawl lever is in the detent position so as to move the cam to the engaged position when the pawl lever is moved to the release position.