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Door latch with emergency lock actuator and ‘impatient passenger’ feature

  • US 8,522,583 B2
  • Filed: 02/24/2011
  • Issued: 09/03/2013
  • Est. Priority Date: 02/24/2010
  • Status: Active Grant
First Claim
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1. A closure latch for a vehicle door, comprising:

  • a ratchet movable between an open position and a closed position and biased towards the open position;

    a pawl movable between a ratchet locking position wherein the pawl holds the ratchet in the closed position and a ratchet release position wherein the pawl permits the ratchet to move to the open position, and wherein the pawl is biased towards the ratchet locking position;

    an outside door release lever movable between a home position and an actuated position, wherein the outside door release lever is biased towards the home position;

    a lock link movable between an unlocking position and a locking position, wherein the lock link is biased towards the unlocking position by a lock link biasing member, wherein when the lock link is in the unlocking position movement of the outside door release lever to the actuated position drives the pawl to the ratchet release position, and wherein when the lock link is in a locking position the outside door release lever is operatively disconnected from the pawl and movement of the outside door release lever to the actuated position prevents movement of the lock link from the locking position to the unlocking position; and

    a lock link driver movable between an unlocking position and a locking position, wherein the lock link driver is operatively connected to the lock link through a slot-and-pin connection such that when the lock link driver is in the locking position the lock link is in the locking position, and when the lock link driver is in the unlocking position the lock link is urged towards the unlocking position by the lock link biasing member,wherein when the lock link is prevented from movement to the unlocking position by the outside door release lever in the actuated position, movement of the outside door release lever to the home position permits movement of the lock link to the unlocking position under the urging of the lock link biasing member,and wherein the lock link driver includes a manual rotation feature thereon for manual rotation of the lock link driver at least to the unlocking position, wherein the manual rotation feature is accessible from the exterior of the vehicle door.

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