Abstract: Provided is a vehicle seat reclining apparatus comprising: a first bracket, a second bracket, a pole, a cam, a locking urging member, a hinge pin, a fitting hole, a release lever, and a supporting urging member.

Abstract: A seat slide apparatus for a vehicle includes a first rail, a second rail, a lock member, a biasing member, the lock member being rotatably connected to the second rail in a state where a support shaft fixed to one of the second rail and the lock member is positioned within an elongated hole formed at the other of the second rail and the lock member to be movable in first and second directions of the relative movement and is biased by a support shaft biasing member in a direction orthogonal to the first and second directions, and a restriction portion restricting the support shaft from moving within the elongated hole in the first and second directions in a case where a load applied in one of the first and second directions is smaller than a predetermined value.

Abstract: A seat slide apparatus for a vehicle includes a tower rail, an upper rail, a memory base arranged above a bottom wall portion of the lower rail, a restriction piece holding the memory base so that the memory base is restricted from moving, a memory pin attached to the memory base in a manner that advance and retract of the memory pin relative to the memory base is allowed, the memory pin engages with the lower rail in a protruding state, the memory pin disengages in a retracted state, an interlocking mechanism pushing a lock member and the memory pin in a forward-folded state of a seatback, and a holding member holding the protruding state of the memory pin and allowing the memory base to move.

Abstract: A vehicle seat sliding device includes: a first rail adapted to be fixed to one of a vehicle floor and a seat; a second rail adapted to be fixed to the other one of the vehicle floor and the seat, and coupled to the first rail in a relatively movable manner; an engagement member, which selectively limits and permits the relative movement of the first and the second rails; an operation member configured such that operating force to cancel the restriction of the relative movement in the second rail is transmitted to the engagement member; and a cover mounted on the first end of the second rail to close the first end. The cover has an engagement piece, which engages with a support wall provided in the second rail and restricts the pivoting of the cover when pressed against the operation member.

Abstract: A vehicle seat sliding device includes: a lower rail adapted to be fixed to a vehicle floor; and an upper rail adapted to be fixed to a vehicle seat, and coupled with the lower rail in a relatively movable manner. A projection is arranged in the vicinity of the rear end portion of the lower rail, and protrudes above the bottom wall of the lower rail. A fitting recess is formed in the bottom wall more forward than the projection. A block body placed on the bottom wall extends to the projection and has a slanted surface more forward than the projection. The block body includes: a fitting protrusion, which fits into the fitting recess and positions the block body in the lateral direction; and a fitting wall, at least a part of which fits on the protrusion. The fitting wall positions the block body in the lateral direction.

Abstract: Provided is a vehicle seat sliding apparatus including a lower rail, an upper rail to the lower rail, a locking mechanism, unlocking mechanism, an unlocked-state maintaining lever, and an unlocked-state releasing lever, in which the unlocked-state releasing lever includes a rotational operating portion configured to rotate in a first direction and to be capable of coming into contact with an operating member in the direction of the relative movement of the upper rail, and the unlocked-state releasing lever is configured to press and move the unlocked-state maintaining lever in the direction of releasing the maintenance of the unlocked state and is capable of rotating in the first direction is disabled without moving the unlocked-state maintaining lever from the maintaining position.

Abstract: A reclining device includes an operating shaft that is inserted through the reclining device in its axial direction to be mounted, and is adapted to release the reclining device from a locked position, and a torsion spring mounted between an outer end portion of the operating shaft which protrudes from the reclining device outward in a width direction of the seat, and a frame portion that is located outside the reclining device in the seat width direction. The operating shaft is constantly biased by the torsion spring in a rotational direction for locking the reclining device. The torsion spring is mounted onto the outer end portion of the operating shaft in the axial direction from an outer side of the seat, and has an inner end portion which is engaged with the operating shaft, and an outer end portion which is engaged with the frame portion.

Abstract: A vehicle seat reclining device includes first and second brackets, which are rotational relative to each other, two guide portions provided on the first bracket and forming a guide groove, a pawl, and a protruding portion. The pawl has outer teeth, which can engage with and disengage from inner teeth of the second bracket, and is guided by the guide groove to move radially. The protruding portion protrudes circumferentially at least at the tip end portion of the guide portion. A fulcrum of inclination of the pawl with respect to the guide part may occur at the time when the outer teeth and the inner teeth are disengaged from each other. The fulcrum located at a position closer to the inner teeth than an intersection point between the guide portion and a normal to a surface where the outer teeth and the inner teeth are engaged with each other.

Abstract: A vehicle seat sliding device includes: a lower rail adapted to be fixed to a vehicle floor; and an upper rail adapted to be fixed to a vehicle seat, and coupled with the lower rail in a relatively movable manner. A projection is arranged in the vicinity of the rear end portion of the lower rail, and protrudes above the bottom wall of the lower rail. A fitting recess is formed in the bottom wall more forward than the projection. A block body placed on the bottom wall extends to the projection and has a slanted surface more forward than the projection. The block body includes: a fitting protrusion, which fits into the fitting recess and positions the block body in the lateral direction; and a fitting wall, at least a part of which fits on the protrusion. The fitting wall positions the block body in the lateral direction.

Abstract: A vehicle seat reclining device is provided with a first bracket having internal teeth, a plurality of pawls each having external teeth capable of engaging with and disengaging from the internal teeth, a second bracket having a guide portion that movably holds the pawls in a radial direction, and a cam mechanism, which moves each pawl in the radial direction. Among the external teeth in each pawl, at least one external tooth including an end tooth located at one end in the circumferential direction of the pawl is displaced inward in the radial direction with respect to a reference position corresponding to the pitch circle of the internal teeth along a center line that divides the external tooth into two parts in the circumferential direction without changing the shape of an effective engagement portion for the internal tooth and the pitch circle radius of the external tooth.

Abstract: A vehicle seat sliding device includes: a first rail adapted to be fixed to one of a vehicle floor and a seat; a second rail adapted to be fixed to the other one of the vehicle floor and the seat, and coupled to the first rail in a relatively movable manner; an engagement member, which selectively limits and permits the relative movement of the first and the second rails; an operation member configured such that operating force to cancel the restriction of the relative movement in the second rail is transmitted to the engagement member; and a cover mounted on the first end of the second rail to close the first end. The cover has an engagement piece, which engages with a support wall provided in the second rail and restricts the pivoting of the cover when pressed against the operation member.

Abstract: A seat slide apparatus for a vehicle includes a lock member selectively locking and restricting relative movement between a first and a second rails and a pair of resilient members formed with shaft biasing portions biasing a retaining shaft in a direction opposite to a direction of biasing the lock member. A first and a second end portions of each resilient member are arranged at positions arranging the shaft biasing portions between the first and the second end portions. The first end portion is locked and restrained to the lock member and the second end portion is locked and restrained to the second rail. A first resilient member of the resilient members includes a stress concentrating portion concentrating stress greater than the stress at a second resilient member. The first rail includes a multiple number of engaging portions for engaging with the stress concentrating portion released from the retaining shaft.

Abstract: A seat slide apparatus for a vehicle includes a first rail, a second rail, a lock member, a biasing member, the lock member being rotatably connected to the second rail in a state where a support shaft fixed to one of the second rail and the lock member is positioned within an elongated hole formed at the other of the second rail and the lock member to be movable in first and second directions of the relative movement and is biased by a support shaft biasing member in a direction orthogonal to the first and second directions, and a restriction portion restricting the support shaft from moving within the elongated hole in the first and second directions in a case where a load applied in one of the first and second directions is smaller than a predetermined value.

Abstract: A seat reclining apparatus for a vehicle, includes a first arm, a second arm rotatably supported by the first arm, a pawl including external teeth engageable with internal teeth, a cam portion and plural pawl-side cam surfaces arranged at the cam portion, a cam including a cam surface engaging with the cam portion formed at the pawl, and a biasing member biasing the cam to rotate and causing the cam surface to press the cam portion in a radial direction. The plural pawl-side cam surfaces or the cam surface is configured in a manner that the plural pawl-side cam surfaces and the cam surface are in contact with each other when the external teeth and the internal teeth are in an engaged state and in a manner that clearances generated between each of the plural pawl-side cam surfaces and the cam surface in the radial direction are all uniform.

Abstract: A seat slide apparatus for a vehicle includes a second unlock mechanism rotating an unlock lever in a direction that unlocks a lock mechanism by pushing the unlock lever in accordance with a predetermined seat operation, an unlocked state retaining lever retaining the lock mechanism in an unlocked state cooperating with the second unlock mechanism by operating in conjunction with the second unlock mechanism, a first unlocked state release mechanism moving the unlocked state retaining lever to a position where the lock mechanism is released from the unlocked state by making contact with an operation body in accordance with movement of an upper rail relative to an lower rail, and a second unlocked state release mechanism moving the unlocked state retaining lever to a position where the lock mechanism is released from the unlocked state by pushing the unlocked state retaining lever in accordance with the operational input.

Abstract: A seat reclining apparatus for a vehicle, includes a first arm, a second arm rotatably supported by the first arm, a pawl including external teeth engageable with internal teeth, a cam portion and plural pawl-side cam surfaces arranged at the cam portion, a cam including a cam surface engaging with the cam portion formed at the pawl, and a biasing member biasing the cam to rotate and causing the cam surface to press the cam portion in a radial direction. The plural pawl-side cam surfaces or the cam surface is configured in a manner that the plural pawl-side cam surfaces and the cam surface are in contact with each other when the external teeth and the internal teeth are in an engaged state and in a manner that clearances generated between each of the plural pawl-side cam surfaces and the cam surface in the radial direction are all uniform.

Abstract: A seat slide device for a vehicle includes a lower rail, an upper rail movable relative to the lower rail and a lock member for restricting the relative movement of the upper and lower rails. The restriction of the relative movement can be released and the lock-released position can be retained. The seat slide device further includes a memory piece detachably engaged with the lower rail and provided in a direction separating from the lower rail and engaging therewith when a seatback is reclined forward, wherein the memory piece is moved in association with the movement of the upper rail by retaining the memory piece at the receiving portion and the shaped portion when the memory piece is separated from the lower rail and wherein the memory piece is engaged with the lower rail at the engaging portion when the memory piece is engaged with the lower rail.

Abstract: In a vehicle seat sliding apparatus of the type wherein rotating an operating lever causes a lock lever to allow an upper rail to slide along a lower rail, the operating member is supported by a supporting bracket fixed to the upper rail to rotate about a fulcrum which is in the form of a plate of the bracket. The operating lever is provided with a slit into which a spring is fitted for being urged. The bracket also holds the spring. To avoid an engagement between the plate and the slit when the operating lever passes during an assembly of the apparatus, the plate is configured to incline relative to the slit.

Abstract: A seat slide apparatus for a vehicle includes a cushioning member provided at one of an operational lever and a lock lever. The cushioning member is configured to contact the other of the operational lever and the lock lever for restricting a contact of an end portion of the operational lever with the lock lever at an initial stage of the rotational operation of the operational lever and is configured to allow a contact of the end portion of the operational lever with the lock lever when canceling the restriction of the movement of an upper rail relative to a lower rail by the lock lever in response to the rotational operation of the operational lever.

Abstract: A seat reclining apparatus includes a pair of first arms, a pair of second arms, a pair of hinge pins, a pair of reclining mechanisms including a pair of lock mechanisms, each of which includes a cam, the lock mechanism restricting a rotational movement of the seat back relative to the seat cushion and releasing a restriction of the rotational movement, by means of a rotational movement of the hinge pins and the cams, and a connecting member provided between the reclining mechanisms and connected to the hinge pins, wherein each of the hinge pins is structured so as to be inserted into each of the reclining mechanisms from an inward of the seat, and a connecting portion is provided at an inner end of at least one of the hinge pins facing the other one of the hinge pins and is connected to the connecting member.