Door lock apparatus
First Claim
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1. A door lock apparatus comprising:
- a latch mechanism for engaging with and disengaging from a striker;
a lock mechanism including;
a link movable between an unlock position where the latch mechanism can be operated and a lock position where the latch mechanism cannot be operated; and
a lock plate configured to move the link to the unlock position and the lock position;
a key-operation-force transfer mechanism configured to transfer an operation force of a key cylinder disposed on a door to the lock plate of the lock mechanism, the key-operation-force transfer mechanism including;
a key lever to which a rotation rod projecting from a rear end of the key cylinder is directly connected, the key lever configured to turn in accordance with an operation of the key cylinder;
a key link connected to the key lever and configured to reciprocate; and
a key sub-lever connected to the key link and engaging with the lock plate with play;
a housing in which at least the lock mechanism and the key-operation-force transfer mechanism are accommodated, the key sub-lever being turnably disposed in the housing; and
a positioning mechanism configured to position the key-operation-force transfer mechanism in a neutral state corresponding to a neutral position of the key cylinder with respect to the housing, the positioning mechanism including;
a positioning portion in the housing; and
an engaging portion on the key link and resiliently detachably engaged with the positioning portion;
wherein the housing has;
a guide groove, the key link being linearly guided in the guide groove; and
an abutment wall extending parallel to the guide groove and with which the engaging portion slides, the abutment wall having the positioning portion thereon.
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Accused Products
Abstract
A door lock apparatus includes: a latch mechanism; a lock mechanism having a link that can move the latch mechanism to an unlock position and a lock position, and a lock plate that moves the link; a key-operation-force transfer mechanism that transfers an operation force of a key cylinder to the lock plate of the lock mechanism; and a housing in which at least the lock mechanism and the key-operation-force transfer mechanism are accommodated. The door lock apparatus further includes a positioning portion and an engaging portion that position the key-operation-force transfer mechanism in a neutral state corresponding to a neutral position of the key cylinder with respect to the housing.
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Citations
4 Claims
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1. A door lock apparatus comprising:
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a latch mechanism for engaging with and disengaging from a striker; a lock mechanism including; a link movable between an unlock position where the latch mechanism can be operated and a lock position where the latch mechanism cannot be operated; and a lock plate configured to move the link to the unlock position and the lock position; a key-operation-force transfer mechanism configured to transfer an operation force of a key cylinder disposed on a door to the lock plate of the lock mechanism, the key-operation-force transfer mechanism including; a key lever to which a rotation rod projecting from a rear end of the key cylinder is directly connected, the key lever configured to turn in accordance with an operation of the key cylinder; a key link connected to the key lever and configured to reciprocate; and a key sub-lever connected to the key link and engaging with the lock plate with play; a housing in which at least the lock mechanism and the key-operation-force transfer mechanism are accommodated, the key sub-lever being turnably disposed in the housing; and a positioning mechanism configured to position the key-operation-force transfer mechanism in a neutral state corresponding to a neutral position of the key cylinder with respect to the housing, the positioning mechanism including; a positioning portion in the housing; and an engaging portion on the key link and resiliently detachably engaged with the positioning portion; wherein the housing has; a guide groove, the key link being linearly guided in the guide groove; and an abutment wall extending parallel to the guide groove and with which the engaging portion slides, the abutment wall having the positioning portion thereon. - View Dependent Claims (2, 3, 4)
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Specification