CLOSURE LATCH ASSEMBLY FOR MOTOR VEHICLE DOOR HAVING GEAR ARRANGEMENT FOR DOUBLE PULL RELEASE
First Claim
Patent Images
1. A closure latch assembly for a vehicle door, comprising:
- a latch mechanism including a ratchet and a pawl, the ratchet being moveable between a striker capture position and a striker release position, the pawl being moveable between a ratchet holding position whereat the pawl holds the ratchet in its striker capture position and a ratchet releasing position whereat the pawl permits the ratchet to move to its striker release position;
a latch mechanism including a pawl release lever moveable between a home position whereat the pawl is maintained in its ratchet holding position and a pawl release position whereat the pawl release lever moves the pawl to its ratchet releasing position;
an inside door release mechanism including an inside release lever operatively connectable to the pawl release lever for selectively moving the pawl release lever from its home position to its pawl release position; and
a lock mechanism including, a lock link that is pivotable between an unlock position whereat the lock link operatively connects the inside release lever to the pawl release lever and a lock position whereat the lock link operatively disconnects the inside release lever from the pawl release lever, a lock link biasing member for biasing the lock link toward its unlock position, and a dual cam arrangement having a first cam and a second cam, the first cam being rotatable between an unlock position whereat the first cam permits the lock link to pivot into its unlock position and a lock position whereat the first cam engages and pivots the lock link into its lock position, the second cam being rotatable between a child unlock position whereat the second cam is displaced from engagement with the lock link and a child lock position whereat the second cam engages and pivots the lock link into its lock position,wherein the lock mechanism is operable in a first locked state, an unlocked state and a second locked state, the first locked state being established when the first cam is located in its lock position and the second cam is located in its child unlock position, the unlocked state being established when the first cam is located in its unlock position and the second cam is located in its child unlock position, and the second locked state being established when the first cam is located in either of its lock and unlock positions and the second cam is located in its child lock position.
1 Assignment
0 Petitions
Accused Products
Abstract
A closure latch assembly for a vehicle door includes a latch mechanism and a lock mechanism. The lock mechanism includes a lock link pivotable between unlock and lock positions, and dual cam arrangement which functions in coordination with rotation of a power lock gear to establish a first locked state where a first cam holds the lock link its lock position and a second locked state where a second cam holds the lock link in its lock position. An unlocked state is established when neither of the first and second cams engage the lock link in its unlock position.
-
Citations
20 Claims
-
1. A closure latch assembly for a vehicle door, comprising:
-
a latch mechanism including a ratchet and a pawl, the ratchet being moveable between a striker capture position and a striker release position, the pawl being moveable between a ratchet holding position whereat the pawl holds the ratchet in its striker capture position and a ratchet releasing position whereat the pawl permits the ratchet to move to its striker release position; a latch mechanism including a pawl release lever moveable between a home position whereat the pawl is maintained in its ratchet holding position and a pawl release position whereat the pawl release lever moves the pawl to its ratchet releasing position; an inside door release mechanism including an inside release lever operatively connectable to the pawl release lever for selectively moving the pawl release lever from its home position to its pawl release position; and a lock mechanism including, a lock link that is pivotable between an unlock position whereat the lock link operatively connects the inside release lever to the pawl release lever and a lock position whereat the lock link operatively disconnects the inside release lever from the pawl release lever, a lock link biasing member for biasing the lock link toward its unlock position, and a dual cam arrangement having a first cam and a second cam, the first cam being rotatable between an unlock position whereat the first cam permits the lock link to pivot into its unlock position and a lock position whereat the first cam engages and pivots the lock link into its lock position, the second cam being rotatable between a child unlock position whereat the second cam is displaced from engagement with the lock link and a child lock position whereat the second cam engages and pivots the lock link into its lock position, wherein the lock mechanism is operable in a first locked state, an unlocked state and a second locked state, the first locked state being established when the first cam is located in its lock position and the second cam is located in its child unlock position, the unlocked state being established when the first cam is located in its unlock position and the second cam is located in its child unlock position, and the second locked state being established when the first cam is located in either of its lock and unlock positions and the second cam is located in its child lock position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A closure latch assembly for a vehicle door, comprising:
-
a latch mechanism including a ratchet and a pawl, the ratchet being moveable between a striker capture position and a striker release position, the pawl being moveable between a ratchet holding position whereat the pawl holds the ratchet in its striker capture position and a ratchet releasing position whereat the pawl permits the ratchet to move to its striker release position; an inside door release mechanism including an inside release lever operatively connectable to the pawl for selectively moving the pawl from its ratchet holding position to its ratchet releasing position; and a lock mechanism including a lock link that is pivotable between an unlock position whereat the lock link operatively connects the inside release lever to the pawl and a lock position whereat the lock link operatively disconnects the inside release lever from the pawl, a lock link biasing member for biasing the lock link toward its unlock position, and a dual cam arrangement having a first cam and a second cam, the first cam being rotatable between an unlock position whereat the first cam permits the lock link to pivot into its unlock position and a lock position whereat the first cam engages and pivots the lock link into its lock position, the second cam being rotatable between a child unlock position whereat the second cam is displaced from engagement with the lock link and a child lock position whereat the second cam engages and pivots the lock link into its lock position, wherein the lock mechanism is operable in a first locked state, an unlocked state and a second locked state, the first locked state being established when the first cam is located in its lock position and the second cam is located in its child unlock position, the unlocked state being established when the first cam is located in its unlock position and the second cam is located in its child unlock position, and the second locked state being established when the first cam is located in either of its lock and unlock positions and the second cam is located in its child lock position. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
-
-
17. A closure latch assembly for a vehicle door, comprising:
-
a latch mechanism including a ratchet and a pawl, the ratchet being moveable between a striker capture position and a striker release position, the pawl being moveable between a ratchet holding position whereat the pawl holds the ratchet in its striker capture position and a ratchet releasing position whereat the pawl permits the ratchet to move to its striker release position; a latch mechanism including a pawl release lever moveable between a home position whereat the pawl is maintained in its ratchet holding position and a pawl release position whereat the pawl release lever moves the pawl to its ratchet releasing position; an inside door release mechanism including an inside release lever operatively connectable to the pawl release lever for selectively moving the pawl release lever from its home position to its pawl release position; a lock mechanism including a lock link that is pivotable between an unlock position whereat the lock link operatively connects the inside release lever to the pawl release lever and a lock position whereat the lock link operatively disconnects the inside release lever from the pawl release lever, a lock link biasing member for biasing the lock link toward its unlock position, a dual cam arrangement having a first cam and a second cam, wherein the first cam is rotatable between an unlock position whereat the first cam permits the lock link to pivot into its unlock position and a lock position whereat the first cam engages and pivots the lock link into its lock position, wherein the second cam is rotatable between a child unlock position whereat the second cam is displaced from engagement with the lock link and a child lock position whereat the second cam engages and pivots the lock link into its lock position; and a power lock actuator including an electric motor operable for rotatably driving a power lock gear between a first locked position and a second locked position, the power lock gear being operable in its first locked position to locate the first cam in its lock position and locate the second cam in its child unlock position, and the power lock gear being operable in its second locked position to locate the second cam in its child lock position; wherein the lock mechanism is operable in a first locked state and a second locked state, the first locked state being established when the power lock gear is located in its first locked position and the second locked state being established when the power lock gear is located in its second locked position. - View Dependent Claims (18, 19, 20)
-
Specification