Abstract: A seat lock device includes a base, a case, a rotatable hook, a rotatable pawl, and a rotatable cam. The base is arranged in one of a seat and a vehicle body and includes a groove configured to receive a striker arranged on the other one of the seat and the vehicle body. The case is opposed to the base. The case includes a groove configured to receive the striker. The hook cooperates with at least the groove of the case to hold the striker in a locked state. The pawl is engaged with a peripheral surface of the hook to hold the hook in the locked state. The cam presses the hook held in the locked state in a lock direction. A portion of the hook and a portion of the pawl are overlapped with each other in an axial direction of the hook and the pawl.

Abstract: An unlocking lever device includes: a lever member which is operated to rotate to allow a locking mechanism to perform an unlocking operation; a sign member which is stored in a storage recessed portion provided in the lever member; a bias member which biases the sign member in a direction of protrusion from the storage recessed portion; and an inclined surface which regulates the protrusion of the sign member from the storage recessed portion in accordance with a position of rotation of the lever member by being abut against the sign member, and generates a bias force which allows the lever member to rotate.

Abstract: A seat apparatus for a vehicle includes: an unlocking lever that is operated so as to unfix a seat from a vehicle floor; and a control switch that is operated in order for the seat to switch between a deployed state in which the seat is supported on the vehicle floor and a folded state in which the seat is retracted in a concave retraction portion of the vehicle floor, when a support member of the seat is driven via the driving of an actuator, wherein the unlocking lever is provided in a back surface of a seatback which is disposed at an opening end of the concave retraction portion when the seatback is folded forward and the seat is retracted, and the control switch is provided integrally with the unlocking lever.

Abstract: A vehicle seat locking device includes: a base member having a base groove into which a striker fixed to one of fixed and movable members is inserted, and fixed to the other of the and movable members; a latch having a latch groove engageable with and disengageable from the striker, rotatably attached to the base member, and rotatable between a locked position and an unlocked position; and a cam pawl attached to the base member, rotatable between an allowable position and a preventive position and rotating from the preventive position to the allowable position when a locking release operation is performed, wherein the cam pawl has a restricting surface restricting the rotation of the latch, and a cam surface rotating in a direction toward the preventive position, coming into contact with the contact surface, rotating the latch, and restricting the rotation of the latch.

Abstract: The present invention provides a lock device for locking by inserting a striker into a base member. The lock device includes a latch, which is disposed on the base member and constrains and releases the striker, and a pawl, which holds the latch. Backlash of the latch is limited by a simple structure. A cam member is rotationally connected to the base member by a rotation shaft different from that of the pawl. An engaging protrusion and recess are formed on the pawl and cam member, respectively. When the pawl is at an allowable position, the protrusion and recess are engaged with each other to hold the cam member. The engagement is released when the pawl rotates to a holding position, engaging the cam member with the latch, which is at a locked position, thereby rotating the latch such that the striker contacts the bottom surface of a base groove.

Abstract: An unlocking lever device includes: a lever member which is operated to rotate to allow a locking mechanism to perform an unlocking operation; a sign member which is stored in a storage recessed portion provided in the lever member; a bias member which biases the sign member in a direction of protrusion from the storage recessed portion; and an inclined surface which regulates the protrusion of the sign member from the storage recessed portion in accordance with a position of rotation of the lever member by being abut against the sign member, and generates a bias force which allows the lever member to rotate.

Abstract: A seat apparatus for a vehicle includes: an unlocking lever that is operated so as to unfix a seat from a vehicle floor; and a control switch that is operated in order for the seat to switch between a deployed state in which the seat is supported on the vehicle floor and a folded state in which the seat is retracted in a concave retraction portion of the vehicle floor, when a support member of the seat is driven via the driving of an actuator, wherein the unlocking lever is provided in a back surface of a seatback which is disposed at an opening end of the concave retraction portion when the seatback is folded forward and the seat is retracted, and the control switch is provided integrally with the unlocking lever.

Abstract: The present invention provides a lock device for locking by inserting a striker into a base member. The lock device includes a latch, which is disposed on the base member and constrains and releases the striker, and a pawl, which holds the latch. Backlash of the latch is limited by a simple structure. A cam member is rotationally connected to the base member by a rotation shaft different from that of the pawl. An engaging protrusion and recess are formed on the pawl and cam member, respectively. When the pawl is at an allowable position, the protrusion and recess are engaged with each other to hold the cam member. The engagement is released when the pawl rotates to a holding position, engaging the cam member with the latch, which is at a locked position, thereby rotating the latch such that the striker contacts the bottom surface of a base groove.

Abstract: A seat for a vehicle includes a seat cushion frame reciprocating between seating and retracted positions, a seat back frame rotatable between standing and forward-tilted positions, a head rest movable between stationary and retracted positions, a pair of links provided at both end portions of the seat cushion frame on a floor in a lateral direction of the vehicle, a guide member including a guide groove extending between the seating and retracted positions, a slide member arranged at the seat cushion frame and sliding along the guide groove, a head rest retaining device retaining the head rest in the stationary position, a rotary member supported by the seat back frame and rotated by the slide member, and an interlocking device arranged between the rotary member and the head rest retaining device and releasing the head rest from the stationary position in accordance with a rotation of the rotary member.

Abstract: A vehicle seat includes an operating member that is provided for a seat back. The operating member is operated to release locking of a seat cushion to a floor and to release rotation-sopped state of a reclining device. By operating the operating member, a first link rotatably provided for the seat back is operated in one rotation direction to thereby turn a second link rotatably provided for a base frame so that locking of the seat cushion to the floor is released. When the seat back is tilted forward, the first link is moved together with the seat back in a direction to be separated from the second link, that is, in a direction opposite to a direction in which the first link turns the second link.

Abstract: A lock mechanism for an electric retractable seat for a vehicle, includes a seat cushion frame, a seat back frame, a guide groove, a latch including an engagement opening portion, a slide member disengaging from the engagement opening portion when the latch is in an unlocked position, engaging with the engagement opening portion during a movement of the seat cushion frame to the seating position, and being locked between the guide groove and the engagement opening portion when the latch is in a locked position, a pawl for restricting the latch from pivoting when the pawl is in a restricted position, and allowing the latch to pivot when the pawl is in a released position, a releasing member for rotating the pawl.

Abstract: A lock apparatus for a vehicle seat includes a protruding portion formed at the side of a seat cushion so as to protrude therefrom, the seat cushion being movable between a usable position and a retracted position, a guide wall member having a guide groove with which the protruding portion is engaged, a latch formed with an opening portion within which the protruding portion is engagable, a sliding member a sliding surface, a latch biasing member, a pawl, a cam surface formed at the pawl for rotating the latch so as to sandwich the protruding portion, a pawl biasing member, a releasing lever and a releasing member formed so as to protrude from the releasing lever in order to rotate the pawl by pressing a releasing portion in a direction against the biasing force applied to the pawl by the pawl biasing member.

Abstract: A lock mechanism for an electric retractable seat for a vehicle, includes a seat cushion frame, a seat back frame, a guide groove, a latch including an engagement opening portion, a slide member disengaging from the engagement opening portion when the latch is in an unlocked position, engaging with the engagement opening portion during a movement of the seat cushion frame to the seating position, and being locked between the guide groove and the engagement opening portion when the latch is in a locked position, a pawl for restricting the latch from pivoting when the pawl is in a restricted position, and allowing the latch to pivot when the pawl is in a released position, a releasing member for rotating the pawl.

Abstract: A seat for a vehicle includes a seat cushion frame reciprocating between seating and retracted positions, a seat back frame rotatable between standing and forward-tilted positions, a head rest movable between stationary and retracted positions, a pair of links provided at both end portions of the seat cushion frame on a floor in a lateral direction of the vehicle, a guide member including a guide groove extending between the seating and retracted positions, a slide member arranged at the seat cushion frame and sliding along the guide groove, a head rest retaining device retaining the head rest in the stationary position, a rotary member supported by the seat back frame and rotated by the slide member, and an interlocking device arranged between the rotary member and the head rest retaining device and releasing the head rest from the stationary position in accordance with a rotation of the rotary member.

Abstract: A vehicle seat includes an operating member that is provided for a seat back. The operating member is operated to release locking of a seat cushion to a floor and to release rotation-sopped state of a reclining device. By operating the operating member, a first link rotatably provided for the seat back is operated in one rotation direction to thereby turn a second link rotatably provided for a base frame so that locking of the seat cushion to the floor is released. When the seat back is tilted forward, the first link is moved together with the seat back in a direction to be separated from the second link, that is, in a direction opposite to a direction in which the first link turns the second link.

Abstract: A seat apparatus for a vehicle includes a first lock mechanism switching between a first locked state and a first lock-released state and a second lock mechanism switching between a second locked state and a second lock-released state. The first lock mechanism includes a restraining member and a releasing member. The restraining member restrains a pivotal movement of a seatback at a predetermined angle position, at which the seatback does not interfere with a seat cushion moving between a first position and a second position thereof, when the second lock mechanism is in the second lock-released state. The releasing member is linked to the restraining member and releases a restriction to the pivotal movement of the seatback by being moved in association with a movement of the seat cushion when the second lock mechanism is in the second lock-released state.

Abstract: A lock apparatus for a vehicle seat includes a protruding portion formed at the side of a seat cushion so as to protrude therefrom, the seat cushion being movable between a usable position and a retracted position, a guide wall member having a guide groove with which the protruding portion is engaged, a latch formed with an opening portion within which the protruding portion is engagable, a sliding member a sliding surface, a latch biasing member, a pawl, a cam surface formed at the pawl for rotating the latch so as to sandwich the protruding portion, a pawl biasing member, a releasing lever and a releasing member formed so as to protrude from the releasing lever in order to rotate the pawl by pressing a releasing portion in a direction against the biasing force applied to the pawl by the pawl biasing member.

Abstract: A seat apparatus for a vehicle includes a first lock mechanism switching between a first locked state and a first lock-released state and a second lock mechanism switching between a second locked state and a second lock-released state. The first lock mechanism includes a restraining member and a releasing member. The restraining member restrains a pivotal movement of a seatback at a predetermined angle position, at which the seatback does not interfere with a seat cushion moving between a first position and a second position thereof, when the second lock mechanism is in the second lock-released state. The releasing member is linked to the restraining member and releases a restriction to the pivotal movement of the seatback by being moved in association with a movement of the seat cushion when the second lock mechanism is in the second lock-released state.