Abstract: In a vehicle seat reclining device, within a predetermined angle range, the movement of every pawl in a direction towards engagement with an internal toothed portion is surely restricted to avoid any undesired contact between the pawls and the internal toothed portion. A transmitting structure for transmitting and converting the rotational action of the cam to the movement actions of the main pawl and the sub pawl as provided. Further provided are first and second restricting structures holding the main pawl under disengagement state between the external toothed portion and the internal toothed portion within the predetermined angle range. Within a predetermined frontward tilting angle range, the sub pawl is retained to be in disengagement state between the external toothed portion of the sub pawl and the internal toothed portion by the transmitting structure and the second restricting structure.

Abstract: In a vehicle seat reclining device, all projections are surely engaged in corresponding cam grooves and strength of every projection is assured. The seat reclining device includes a first cam groove formed at a first opposing surface of a pawl, a pawl control member provided in an inner space and rotatably disposed between the first arm and the first opposing surface, the pawl control member including at least a first projection to be inserted into the first cam groove and controlling movement of the pawl in response to the rotation thereof by engagement between the first cam groove and the first projection, a second projection formed at a second opposing surface of the pawl and a second cam groove formed at the second arm side, into which the second projection is inserted and including a restricting portion restricting the movement of the pawl towards the engagement state with an internal toothed portion by engagement with the second projection.

Abstract: A seat apparatus for a vehicle includes a lower rail fixed to a vehicle floor and an upper rail slidably supported relative to the lower rail and having a U-shaped cross section opened downward. The seat apparatus includes a supporting member integrally formed with a bottom wall portion and fixed, at both longitudinal ends thereof, to an upper portion of the upper rail and a side wall portion extending upward from at least one width directional end of the bottom wall portion. The supporting member supports a vehicle seat. The supporting member includes a curved portion integrally formed at an intermediate portion in the longitudinal direction of the bottom wall portion of the supporting member and curved upward to be distant from the upper rail.

Abstract: A seat device for a vehicle adapted to adjust a positional height of a seat cushion includes rails, frames supporting the seat cushion, link members, a torque rod connecting link members, a sector gear formed so as to operate together with one of the link members and rotatably supported by one of the frames, an elongated hole formed on the sector gear, a pinion gear meshing with the sector gear, a pressing bracket supported by the pinion gear, a stopper pin inserted into the elongated hole of the sector gear and connected to the one of the frames at a first end of the stopper pin and to the pressing bracket at a second end of the stopper pin.

Abstract: A vehicle seat frame is provided, which can prevent the increase of weight and secure the strength effectively. The vehicle seat frame comprises a seat cushion frame supporting a seat cushion, a seat back frame supporting a seat back, a recliner rotatably connecting the seat back relative to the seat cushion and adjusting the rotation angle thereof and a shoulder belt anchor provided on the seat back frame for supporting one end of a shoulder belt. The back center frame of the seat back frame includes a hollow quadrangular shape outer peripheral portion and a reinforcement plate provided in the outer peripheral portion and placed in parallel with a direction of load to be applied on the shoulder belt anchor from the shoulder belt.

Abstract: A seat slide apparatus for a vehicle includes a lower rail, formed into a longitudinal shape and adapted to be fixed to a vehicle floor, an upper rail adapted to be fixed to a seat frame, and assembled to the lower rail to be relatively movable in a longitudinal direction of the lower rail, and a detachment prevention mechanism including an elongated hole, which is formed at the bottom wall portion to open therethrough and which extends in the longitudinal direction, and a load receiving member whose upper end portion is fixed to the upper wall portion and whose lower end portion is inserted downwardly through the elongated hole so as to be movable in an extending direction of the elongated hole, and is engageable with the bottom wall portion in the vicinity of the elongated hole to restrict a movement of the upper rail in an upper direction.

Abstract: A vehicle seat frame is provided, wherein the back center frame of the seat back frame is of hollow, quadrangular prism shape. The connecting member includes a cylindrical outer cylinder portion, a ceiling portion projecting inwardly from one axial end of the outer cylinder portion and a flange portion projecting outwardly from the other axial end of the outer cylinder portion. The ceiling portion of the connecting member is fixed to an inner surface of one of the side plate portions of the back center frame and a surface of the outer cylinder portion side of the flange portion is fixed to an outer surface of the other of the side plate portions of the back center frame, and the other surface opposite to the surface of the outer cylinder portion side of the flange portion is connected to the bracket through the recliner.

Abstract: A seat apparatus for a vehicle includes a longitudinal sliding mechanism including a first lower rail adapted to be fixed to a vehicle floor and extending in a longitudinal direction of the vehicle and a first upper rail slidably supported to the first lower rail, a width-directional sliding mechanism including a second lower rail mounted on the first upper rail and extending in a width direction of the vehicle and a second upper rail slidably supported to the second lower rail and adapted to be fixed to a seat frame member, and an attachment bracket extending in parallel to the second lower rail and including an upper wall portion and first and second engagement portions extending downwardly from the upper wall portion, facing each other in the longitudinal direction, and supported by the first upper rail, wherein the second lower rail is fixed between the first and second engagement portions.

Abstract: A seat back frame for a vehicle for supporting a seat back, includes a first back frame, at which a shoulder belt anchor for supporting one end portion of a seat belt is provided, a second back frame arranged substantially in parallel with the first back frame, and a cross member connecting the first back frame and the second back frame, wherein a protruding portion or a recessed portion is formed at the cross member so as to extend in a longitudinal direction thereof, a first recessed surface portion or a first protruding surface portion is formed at the first back frame and a second recessed surface portion or a second protruding surface portion is formed at the second back frame so that the first back frame and the second back frame are fittedly connected to the protruding portion or the recessed portion of the cross member.

Abstract: A seat apparatus for vehicle includes a slide mechanism including a lower rail adapted to be fixed to a vehicle floor and an upper rail movably supported relative to the lower rail and adapted to be fixed to a first end portion of a seat frame, a belt anchor connected to a seat belt fixed to the seat frame, a wire member arranged below a second end portion of the seat frame and having ends adapted to be fixed to the vehicle floor, and a separating load transmission mechanism including a wire member retaining device connected to the belt anchor, the wire member retaining device being relatively movable along the wire member in a normal operation and retaining the wire member to lock the relative movement in a case where a separating load equal to or greater than a predetermined level is applied to the belt anchor.

Abstract: A lock apparatus of a seat for a vehicle includes a striker, a base including a first groove portion, a hook including a second groove portion and pivoting between a lock position and an unlock position, a pawl restraining a pivotal movement of the hook towards the unlock position while allowing the pivotal movement of the hook towards the lock position, a cam member including a cam profile for allowing the pivotal movement of the hook towards the lock position and for restraining the pivotal movement of the hook towards the unlock position, and a first biasing member. When the hook is pivoted to the lock position, the striker is positioned between the rotational shaft of the hook and the rotational shaft of the pawl, and the pawl and the hook are engaged at an opposite position of the rotational shaft of the hook relative to the striker.

Abstract: A vehicle seat device includes a seat cushion frame and a seatback frame including a lower-side frame supported at a lower end portion thereof to be tiltable relative to a rear end portion of the seat cushion frame, an upper-side frame arranged at an upper portion of the lower-side frame, and a center bending mechanism coupling the lower-side frame and the upper-side frame to be bendable forward, wherein the center bending mechanism bends the upper-side frame about a rotational center that is ahead of a seatback outer layer covering a front surface of the seatback frame. The movement of the upper-side frame when tilted comes close to the movement of the passenger who bends forward. The slip between the seatback outer layer and the back of the passenger can be minimized, and thus, it becomes possible to lessen an uncomfortable feeling of a passenger.

Abstract: A seat apparatus for a vehicle includes a seat cushion frame for supporting a seat cushion and operated to move between a first position and a second position relative to a vehicle floor, a link member including first and second ends respectively pivotably connected to the vehicle floor and to a first end portion of the seat cushion frame, a guiding member provided at the vehicle floor for supporting a second end portion of the seat cushion frame to the vehicle floor and including a guiding groove, and a sliding member provided at the second end portion of the seat cushion frame and slidably engaged into the guiding groove. The guiding groove extends along a connection line connecting the sliding member and a connection point between the seat cushion frame and the link member so as to move the seat cushion frame between the first position and the second position.

Abstract: A seat sliding apparatus for a vehicle includes a lower rail fixed to a vehicle floor, an upper rail fixed to a vehicle seat, rolling engagement members disposed between the lower rail and the upper rail for making the upper rail to be movable relative to the lower rail in a longitudinal direction thereof, and two retainers arranged between the lower rail and the upper rail along a longitudinal direction thereof and each including a notch. The rolling engagement members are rotatably held at a front end portion and a rear end portion of the retainer. In addition, the lower rail includes a first engagement projection engaging with front end and rear end surfaces of the notch in response to a sliding movement of the upper rail relative to the lower rail.

Abstract: To be able to store a seat back and a seat cushion in line from front to back and be able to widely ensure space above a storage position of the seat cushion. In a rear seat (10), when a seat back (18) is rotated to a forwardly collapsed position in a state where a seat cushion (16) has been moved to a storage position, the seat back (18) and the seat cushion (16) are stored in parallel from front to back. Consequently, the seat back (18) and the seat cushion (16) can be thinly stored in an up-down direction of a vehicle. Moreover, the storage position of the seat cushion (16) is set on a rear lower side of a use position, so space above the storage position can be widely ensured.

Abstract: A clutch device for a seat lifting apparatus of a vehicle includes a friction brake portion for transmitting rotation of an operational lever to an output shaft, an output gear provided at the output shaft, a biasing force receiving portion provided at the output shaft for receiving a biasing force which assists a rotation of the output shaft, a first bearing portion provided at one side of the biasing force receiving portion and the output gear and a second bearing portion provided at the other side of the biasing force receiving portion and the output gear. The first bearing portion and the second bearing portion rotatably support the output shaft at both sides of the biasing force receiving portion and the output gear.

Abstract: A seat sliding apparatus includes a lower rail, an upper rail fixed to a vehicle seat and mounted on the lower rail to move, a lock mechanism having a lock lever for locking the upper rail with the lower rail, a slide supporting member disposed between the rails, a sliding portion provided at both the rails, with which the slide supporting member contact, lock portions provided at one of the rails facing each other, another lock portion provided at the other one of the rails locating between the lock portions, the lock lever being fitted into at least one of the lock portions. The sliding portion of the upper rail is formed along a longitudinal direction over an entire length of the upper rail and the lock portions of the upper rail are arranged at one of an upper side and a lower side of the sliding portion.

Abstract: A seat adjustment apparatus of a vehicle that prevents a torque rod from falling off. A torque rod is rotatably supported by through holes, which are provided in a left base frame. The torque rod pivots with respect to base frames through pivoting of rear lifter links. A metal hook member is secured to the torque rod. The metal hook member includes a first engagement portion, second engagement portions, and a third engagement portion. The first engagement portion is passed through the torque rod and engaged with a torsion bar. The second engagement portions are engaged with the torque rod. The third engagement portion is provided at a position radially outward from the second engagement portions and engaged with the left base frame. The torsion bar is fixed to the torque rod through the metal hook member.

Abstract: A vehicle seat reclining apparatus includes a first member attached to one of a seat cushion and a seatback and having an inner gear, a second member attached to the other of the seat cushion and the seatback for rotatably supporting the first member, a locking member having outer teeth facing the inner gear and movable in a radial direction, a guide wall portion provided at the second member, the guide wall portion being configured to guide the locking member in the radial direction by interposing the locking member from a first portion, and a second portion, of the locking member, the first portion and the second portion being defined in a circumferential direction of the locking member, and an outer teeth portion provided at the guide wall portion and facing the inner gear distantly in the radial direction.

Abstract: A seat apparatus for a vehicle includes a first seat, a second seat, and a seatbelt mechanism provided at the second seat. A first frame member for supporting the second seat and a first seat slide mechanism for slidably moving the second seat are arranged to be vertically coplanar with the shoulder belt guide member and the belt anchor of the seatbelt mechanism. A first lock member is provided at a second frame member disposed adjacently to the first seat for supporting the second seat. A second lock member is provided at a supporting member for supporting the first seat. The first and second lock members allow a movement of the second frame member in a forward and backward direction of the vehicle and engage with each other for locking the second frame member relative to the vehicle floor when an excess load is received from the seatbelt mechanism.