Global Side Door Latch

• US 20100072761A1
• Filed: 02/04/2008
• Published: 03/25/2010
• Est. Priority Date: 02/04/2008
• Status: Abandoned Application

• Current Assignee: Magna Closures Company Limited (Magna International Incorporated)
• Original Assignee: Magna Closures Company Limited (Magna International Incorporated)
• Inventors: Cetnar, Roman, Tomaszewski, Kris
• Application Number:
  US12/025,266
• Publication Number:
  US 20100072761A1
• Time in Patent Office: Days
• US Class Current: 292/201
• CPC Class Codes: E05B 77/26 specially adapted for child safety
• CPC Class Codes: E05B 77/265 hand actuated, e.g. by a lever at the edge of the door
• CPC Class Codes: E05B 77/28 for anti-theft purposes, e.g. double-locking or super-locking
• CPC Class Codes: E05B 77/40 Lock elements covered by silencing layers, e.g. coatings
• CPC Class Codes: E05B 79/20 using flexible connections, e.g. Bowden cables
• CPC Class Codes: E05B 81/06 using rotary motors
• CPC Class Codes: E05B 81/14 operating on bolt detents, e.g. for unlatching the bolt
• CPC Class Codes: E05B 81/34 of geared transmissions
• CPC Class Codes: E05B 81/90 Manual override in case of power failure
• CPC Class Codes: E05B 85/02 Lock casings
• CPC Class Codes: Y10T 292/1047 Closure
• CPC Class Codes: Y10T 292/1052 Operating means
• CPC Class Codes: Y10T 292/1082 Motor

Abstract

The latch includes a ratchet and pawl operable to move between an engaged position to hold a striker and a released position to permit the striker from exiting the latch. In addition, a release lever and a lock lever are pivotally mounted to the opposite surface of the latch housing. A lock link lever connects the release lever to the lock lever, having a first end pivotally mounted to the lock lever and a second end slidably located in a slot on the release lever. Actuating the release lever while the second end of the lock link lever is in its locked position pivots the lock link lever in a first arc and actuating the release lever while the lock link lever is in its unlocked position pivots the lock link lever in a second arc to actuate the pawl into its released position.

Claims

1. A latch for an automotive door, comprising:

a housing;

a ratchet and pawl mounted to the housing, the ratchet and pawl cooperatively operable to move between an engaged position to hold a striker and a released position;

a release lever pivotally mounted to the housing, the release lever being kinematically coupled to the pawl to release the ratchet when actuated; and

a living hinge formed in a portion of the housing, thereby forming a flap operable to pivot between an open position providing access to the interior of the housing and a closed position.

2. The latch of claim 1, wherein the living hinge provides access to the interior of the housing proximate the release lever.

3. The latch of claim 2, wherein the housing is operable to retain the flap in the closed position during normal operations of the latch.

4. A latch for an automotive door, comprising:

a housing;

a ratchet and pawl mounted to the housing, the ratchet and pawl cooperatively operable to move between an engaged position operable to hold a striker and a released position;

a lock lever mounted to the housing and operable to move between a locked and an unlocked position;

a lock link lever, kinematically coupled to the lock lever and operable to move between a corresponding locked and unlocked position when the lock lever moves between its respective locked and unlocked positions, the lock link lever operable to actuate the pawl when actuated from its unlocked position;

a release lever, pivotally mounted to the housing; and

operable to actuate the lock link lever;

a double lock motor located in a motor housing attached to the housing, the double lock motor being connected to the lock link lever so that the double lock is operable to kinematically decouples the lock link lever from the lock lever and kinematically re-couples the lock link lever to the lock lever; and

wherein the motor housing includes a return spring operable to return a motor output on the double lock motor to its starting position when the double lock motor is deactivated.

5. The latch of claim 4, wherein the motor housing further includes a plurality of electrical traces operable to connect the motor with a power supply.

6. The latch of claim 5, wherein the motor housing is removable from the housing.

7. The latch of claim 6, wherein the motor can be mounted to the motor housing prior to the motor housing being mounted to the housing.

8. A latch for an automotive door, comprising:

a housing;

a ratchet and pawl mounted to the housing, the ratchet and pawl cooperatively operable to move between an engaged position operable to hold a striker and a released position;

a spring, biasing the pawl to the engaged position; and

a resilient finger, extending out from the pawl and located as to frictionally engage a portion of the housing over a portion of the pawl'"'"'s travel between the released position and the engaged position, thereby reducing the speed of the pawl.

9. The latch of claim 8, wherein the pawl further includes a bumper, the bumper being located as to impact against a portion of the housing when the pawl reaches its engaged position.