Latch assembly capable of maintaining locking state
A latch assembly capable of maintaining a locking state includes a locking plate including a striker selectively disposed in and out of the locking plate, and rotatably provided, a pawl engaged with the locking plate to prevent rotation of the locking plate, maintaining a locking state in which the locking plate restrains the striker, and separated from the locking plate when being rotated by a cable coupled to the pawl to release restraint of the striker from the locking plate, being in an unlocking state, and a locking maintenance member configured to prevent the rotation of the pawl and the rotation of the locking plate in the locking state, and enable the rotation of the pawl and the rotation of the locking plate when starting to be unlocked from the locking state, which is provided between the pawl and the locking plate.
1 . A latch assembly capable of maintaining a locking state thereof, the latch assembly comprising:
a rotatable locking plate that selectively receives a striker;
a rotatable pawl engaged with the locking plate to prevent rotation of the locking plate, thereby maintaining the locking state of the latch assembly, in which the locking plate restrains the striker, and the pawl is separated from the locking plate when the pawl is rotated by a cable coupled to the pawl to release restraint of the striker by the locking plate, so as to place the latch assembly in an unlocking state of the latch assembly; and
a pawl pin provided between the pawl and the locking plate and configured to prevent a rotation of the pawl and the rotation of the locking plate in the locking state by restraining the rotation of the pawl and the rotation of the locking plate, wherein the pawl pin enables the rotation of the pawl and the rotation of the locking plate when actuation of the pawl is initiated to release the latch assembly from the locking state to the unlocking state,
wherein the pawl pin is provided to be simultaneously fitted into the pawl and the locking plate in the locking state of the latch assembly, and provided to be fitted into the pawl when the cable is pulled to actuate the pawl and initiate the release of the latch assembly from the locking state to the unlocking state,
wherein an end portion of the cable is fixed to a pawl cable pin provided in the pawl to be slidable within a predetermined distance in the pawl,
wherein the pawl pin is interlocked with the pawl cable pin,
wherein the latch assembly further comprises a bracket, on which the pawl cable pin and the pawl pin are fastened, so as to be spaced from one another on the bracket such that the pawl pin is interlocked with the pawl cable pin, and
wherein the pawl cable pin and the pawl pin are fastened to the bracket at fixed positions.
2 . The latch assembly of claim 1 ,
wherein the pawl pin enables the rotation of the pawl and the rotation of the locking plate when the actuation of the pawl is initiated by the cable being pulled.
3 . The latch assembly of claim 1 ,
wherein when a first end portion of the pawl pin is accommodated in a locking groove of the locking plate and a second end portion of the pawl pin is accommodated in a pawl guide groove of the pawl in the locking state of the latch assembly, the rotation of the pawl and the rotation of the locking plate are prevented.
4 . The latch assembly of claim 3 ,
wherein when the releasing of the latch assembly from the locking state to the unlocking state begins, the pawl pin is located inside the pawl guide groove.
5 . The latch assembly of claim 3 ,
wherein the pawl pin is interlocked with the cable via the interlocking of the pawl pin with the pawl cable pin by the bracket and is located inside the pawl guide groove when the cable is pulled.
6 . The latch assembly of claim 3 ,
wherein the locking groove and the pawl guide groove are formed in the locking plate and the pawl, respectively, so as to communicate with each other in the locking state of the latch assembly.
7 . The latch assembly of claim 1 ,
wherein a pin guide groove is disposed in the pawl, and the pawl cable pin is slidable in the pin guide groove and slidable within the predetermined distance, which is defined by the pin guide groove.
8 . The latch assembly of claim 7 , wherein in the locking state of the latch assembly, a locking groove of the locking plate, a pawl guide groove of the pawl, at least a portion of the pawl, and the pin guide groove are located on a virtual straight line.
9 . A latch assembly capable of maintaining a locking state thereof, the latch assembly comprising:
a rotatable locking plate selectively receiving a striker;
a rotatable pawl engaged with the locking plate to prevent rotation of the locking plate, thereby maintaining the locking state of the latch assembly, in which the locking plate restrains the striker, and the pawl is separated from the locking plate when rotated by a cable coupled to the pawl to release restraint of the striker from the locking plate, thereby placing the latch assembly in an unlocking state of the latch assembly; and
a pawl pin simultaneously engaged with the locking plate and the pawl in the locking state before the cable is pulled, and engaged with the pawl after the cable is pulled,
wherein the pawl pin is provided to be engaged with the pawl when the cable is pulled,
wherein a pawl cable pin is provided at an end portion of the cable, and the pawl pin and the pawl cable pin are connected to each other by a bracket, so that the pawl pin is interlocked with the cable, and
wherein the pawl cable pin and the pawl pin are fastened to the bracket at fixed positions.
10 . The latch assembly of claim 9 ,
wherein the pawl cable pin is slidably provided in a pin guide groove formed in the pawl.
11 . The latch assembly of claim 10 , wherein when the latch assembly is in the locking state, a locking groove of the locking plate, a pawl guide groove of the pawl, at least a portion of the pawl, and the pin guide groove are located on a virtual straight line.
12 . A latch assembly capable of maintaining a locking state thereof, the latch assembly comprising:
a rotatable locking plate that selectively receives a striker;
a rotatable pawl comprising a first locking part engaged with the locking plate to prevent rotation of the locking plate, thereby maintaining the locking state of the latch assembly, in which the locking plate restrains the striker, and the pawl is separated from the locking plate when the pawl is rotated by a cable coupled to the pawl to release restraint of the striker by the locking plate, so as to place the latch assembly in an unlocking state; and
a pawl pin provided between the pawl and the locking plate and configured to prevent a rotation of the pawl and the rotation of the locking plate in the locking state of the latch assembly by restraining the rotation of the pawl and the rotation of the locking plate, and the pawl pin enables the rotation of the pawl and the rotation of the locking plate when the pawl is actuated to release the latch assembly from the locking state to the unlocking state,
wherein an end portion of the cable is fixed to a pawl cable pin provided in the pawl to be slidable within a predetermined distance in the pawl, thereby coupling the cable to the pawl, and
wherein the pawl pin, which is provided to be simultaneously fitted into the pawl and the locking plate in the locking state of the latch assembly, is interlocked with the pawl cable pin,
wherein the latch assembly further comprises a bracket, on which the pawl cable pin and the pawl pin are fastened, so as to be spaced from one another on the bracket such that the pawl pin is interlocked with the pawl cable pin,
wherein the pawl cable pin and the pawl pin are fastened to the bracket at fixed positions.