Door lock device for vehicle

Patent metadata

Field	Value
Publication number	US-9758992-B2
Application number	US-201113389699-A
Country	US
Kind code	B2
Filing date	Apr 15, 2011
Priority date	Aug 2, 2010
Publication date	Sep 12, 2017
Grant date	Sep 12, 2017

Abstract

A door lock device for a vehicle is provided in which a lock release member that is operable between an operating position at which the ratchet is operated toward the side on which the ratchet engages with the latch and a standby position at which free pivoting of the ratchet is allowed and that is urged toward the standby position is driven to the operating position by a drive member which engages with the lock release member when an actuator is operated, the door lock device being capable of releasing a locked state of a door by operation of the actuator and also being capable of releasing the locked state of the door by a manual operation, wherein an engagement release mechanism ( 96 ) releases engagement of a drive member ( 67 ) and a lock release member ( 66 ) in response to a manual operation for releasing the locked state of the door being carried out while the drive member ( 67 ) is engaged with the lock release member ( 66 ). This enables recovery of a state in which a door can be held in a closed state even in a state in which a drive member has stopped at an operating position due to malfunction of an actuator in a state in which a locked state of the door is released.

First claim

The invention claimed is:

1. A door lock device for a vehicle, comprising:
a latch that selectively engages with a striker on a vehicle body side, that is pivotable in a door-closing direction, that is pivotingly urged in a door-opening direction, and that alternates between an engaged state with the striker in a locked state of a door and a disengaged state with the striker in an unlocked state of the door;
a ratchet that is pivotable between an engagement position at which the ratchet engages with the latch in the engaged state with the striker and an engagement release position at which engagement with the latch is released, thereby releasing the locked state of the door, and that is pivotingly urged toward a side on which the ratchet engages with the latch;
a lock release member that is operable between an operating position at which the ratchet is operated toward the engagement release position and a standby position at which pivoting of the ratchet toward the engagement position is allowed, and that is urged toward the standby position;
an actuator operable to release the locked state of the door;
a drive member that is operatively connected to the actuator and that, when the actuator is operated, engages with the lock release member to thus drive the lock release member from the standby position to the operating position, thereby releasing the locked state of the door, wherein the locked state of the door is also releasable by a first manual operation and a second manual operation;
a pin implanted in an upper end part of the lock release member;
an engagement face formed in an upper end part of the drive member for selectively abutting the pin and thereby providing an engagement of the drive member with the lock release member; and
an engagement release mechanism that releases the engagement of the drive member with the lock release member by releasing the abutment of the engagement face with the pin in response to the second manual operation for releasing the locked state of the door being carried out while the drive member is in engagement with the lock release member,
wherein the first manual operation for releasing the locked state of the door includes a manual pivoting of an inner handle to a large degree.

2. The door lock device for a vehicle according to claim 1 , wherein the engagement release mechanism comprises:
an abutment plate portion provided in the upper end part of the drive member so as to extend vertically and perpendicularly relative to the engagement face; and
an engagement release arm provided on an open lever and biased away from abutment with the abutment plate portion,
wherein the second manual operation for releasing the locked state of the door includes actuation the open lever to force the engagement release arm into abutment with the abutment plate portion, thereby releasing the engagement of the drive member with the lock release member.

Assignees

• Kouzuma Hiroyuki
• Honda Lock Kk

Inventors

• Kouzuma Hiroyuki

Classifications

• E05B79/20

  using flexible connections, e.g. Bowden cables · CPC title

• E05B19/0082

  Keys or shanks being removably stored in a larger object, e.g. a remote control or a key fob (general constructional details of electronic keys G07C9/00944) · CPC title

• Y10T292/1075

  Operating means · CPC title

• E05B81/14 Primary

  operating on bolt detents, e.g. for unlatching the bolt · CPC title

• E05B81/90

  Manual override in case of power failure · CPC title