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: A vehicle seat sliding apparatus having a lower rail adapted to be fixed to a vehicle floor and an upper rail adapted to be fixed to a seat and connected to the lower rail so as to be movable with respect to the lower rail includes: a lock lever adapted to be connected rotatably to the upper rail and engaged with the lower rail for selectively restricting the movement of the upper rail with respect to the lower rail; an operating lever adapted to be connected rotatably to a supporting bracket adapted to support the seat in the direction of rotation different from the direction of rotation of the lock lever above the lock lever; and a connecting rod adapted to be connected at one end and the other end directly to the lock lever and the operating lever respectively, and adapted to transmit an operating force to release restriction of the movement with respect to the lock lever by a pressing operation in association with the rotation of the operating lever.

Abstract: In a vehicle seat sliding apparatus wherein rotating an operating lever causes a lock lever to allow a sliding movement of an upper rail along a lower rail, the operating lever is held within a bracket connected to the upper rail via torsion spring. The torsion spring is made from a single piece of wire and formed into a specific shape for easy provision of the operating lever to the bracket during an assembly of the seat sliding apparatus.

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 vehicle seat sliding apparatus includes: a first rail adapted to be fixed to any one of a vehicle floor and a seat; and a second rail adapted to be fixed to the other one of the vehicle floor and the seat and adapted to be connected to the first rail so as to be capable of relative movement with respect to the first rail. The first rail includes: a pair of side wall portions juxtaposed on both sides in terms of the widthwise direction; a connecting wall portion connecting proximal ends of the both side wall portions; and first folded-back wall portions protruded from distal ends of the both side wall portions in the widthwise direction and then folded back toward proximal end sides of the side wall portions.

Abstract: In a vehicle seat sliding apparatus including first and second rails, one of which is movable relative to the other within a range restricted by engagement between raised tabs of the first and second rails, a cover member is provided at an end of the upper rail. The cover extends into the upper rail along its lengthwise direction to reach a portion at which the raised tab of the upper rail. The cover is provided with an extension extending to the raised tab of the upper rail.

Abstract: A seat reclining apparatus for a vehicle includes: a first plate adapted to be mounted on one of a seat cushion and a seat back and having inner teeth; a second plate adapted to be mounted on the other one of the seat cushion and the seat back and supporting the first plate to be rotatable; a pole directly and movably supported by the second plate and having outer teeth engageable and disengageable with the inner teeth of the first plate; a pair of guides formed at the second plate and interposing therebetween the pole from both sides, the guide including a pole sliding surface adjusted to slidably come in contact with a side surface of the pole; and a recess formed at the pole sliding surface of the guide.

Abstract: A seat slide apparatus for a vehicle includes a lower rail, an upper rail, and a lock mechanism. The lock mechanism includes a lock portion provided at the lower rail, a lock member which is engageable with and disengageable from the lock portion and a first biasing member for biasing the lock member in a direction to be engaged with the lock portion. The seat slide apparatus for a vehicle further includes a releasing lever for releasing the lock member from being engaged with the lock portion and a second biasing member for maintaining the releasing lever at a neutral position. According to the seat slide apparatus for the vehicle, the first biasing member and the second biasing member are integrally formed.

Abstract: A seat sliding apparatus for a vehicle includes a lower rail, an upper rail, a block, and a raised portion. The lower rail is adapted to be fixed to a vehicle floor. The lower rail with a U-shaped cross section has an end and a bottom wall. The upper rail is adapted to be fixed to a seat and supported in the lower rail to be movable relative to the lower rail. The block is fixed to the lower rail and includes an inclined face extending away from the bottom wall of the lower rail as the inclined face approaches the end of the lower rail. The raised portion is formed by cutting the bottom wall of the lower rail and folding the cut wall inward the lower rail to fix the block to the lower rail. Accordingly, a foreign object within the lower rail can be removed without blocking the movement of the upper rail relative to the lower rail.

Abstract: A seat belt buckle rotation angle restriction mechanism includes a shaft portion fixed to one of the seat support member and the buckle support member, a bearing portion provided at the other one of the seat support member and the buckle support member, the bearing portion accommodating the shaft portion in such a manner that the shaft portion is rotatable, at least two rotational side surfaces provided at one of outer contact surfaces of the shaft portion and inner contact surfaces of the bearing portion, the two rotational side surfaces being symmetric about a rotational center of the buckle support member, and at least two block side surfaces provided at the other one of the outer contact surfaces and the inner contact surfaces, the two block side surfaces being symmetric about the rotational center, each block side surface forming a predetermined angle with each rotational side surface.

Abstract: A seat reclining apparatus includes a fine angle adjustment mechanism for finely adjusting an angle between a seat cushion and a seat back of a seat and including a planetary gear mechanism having a first gear provided to a seat cushion side of the seat for relative rotation with the seat cushion and a second gear fixed to a seat back side of the seat and an engaging/disengaging mechanism for controlling the relative rotation between the seat cushion and the seat back of the seat and including a base plate fixed to the seat cushion side and a stopper member provided to the base plate and engageable with or disengageable from the first gear. The relative rotation of the first gear with respect to the seat cushion is restricted when the stopper member engages with the first gear and the relative rotation of the first gear to the seat cushion is allowed when the stopper member disengages from the first gear.

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.

Abstract: A seat slide apparatus for a vehicle includes a first rail adapted to be securely mounted on one of a vehicle floor and a seat, a second rail adapted to be securely mounted on the other of the vehicle floor and the seat and movably assembled relative to the first rail, a first bent portion formed at the first rail, a pair of second bent portions respectively formed at the second rail at longitudinal sides of the first bent portion of the first rail so as to contact the first bent portion to restrict further relative movement of the first and second rail, and a relief portion provided at one of the first and second rails so as to face one of the second and first bent portions, respectively.

Abstract: A seat reclining device includes a spiral spring made of a wire and formed in a spiral shape having a first engaged portion and a second engaged portion, a first engaging member engaging the first engaged portion, and a second engaging member engaging the second engaged portion, wherein one/each of the first engaging member and the second engaging member includes an extending direction supporting member supporting the first engaged portion and/or the second engaged portion, from the opposite end side of the wire in an extending direction thereof, a first supporting member supporting the first engaged portion and/or the second engaged portion from outside of the wire, and a second supporting member supporting the first engaged portion and/or the second engaged portion from inside of the wire in a normal direction thereof.

Abstract: A seat device for a vehicle includes a lower frame, a slide mechanism, a reclining mechanism for supporting a seatback relative to a seat cushion with a reclined angle and holding the seatback to a predetermined position, a slide lock mechanism for restricting the movement of the lower frame and holding a seat to a predetermined position relative to a vehicle floor and a walk-in mechanism disposed between the reclining mechanism and the slide lock mechanism for releasing the restriction of the movement of the lower frame by operating the slide lock mechanism in association with the reclining movement of the seat. The walk-in mechanism includes a first link rotatably supported by the shaft member and operatively connected to the reclining mechanism and the slide lock mechanism to transmit a power from the reclining operation of the seatback to the slide lock operation of the slide lock mechanism.

Abstract: A seat sliding apparatus for a vehicle includes a lower rail, an upper rail, a block, and a raised portion. The lower rail is adapted to be fixed to a vehicle floor. The lower rail with a U-shaped cross section has an end and a bottom wall. The upper rail is adapted to be fixed to a seat and supported in the lower rail to be movable relative to the lower rail. The block is fixed to the lower rail and includes an inclined face extending away from the bottom wall of the lower rail as the inclined face approaches the end of the lower rail. The raised portion is formed by cutting the bottom wall of the lower rail and folding the cut wall inward the lower rail to fix the block to the lower rail. Accordingly, a foreign object within the lower rail can be removed without blocking the movement of the upper rail relative to the lower rail.

Abstract: A seat apparatus for a vehicle includes a seat cushion, a lower arm, a seat back, an upper arm, an intermediate arm, a reclining mechanism, and a lock mechanism. The lock mechanism includes a first plate member, a second plate member, and a pawl gear. The first plate member is fixed to one of the upper arm and the intermediate arm to be provided therein with a plurality of internal tooth sections each of which has a plurality of teeth with different widths. The second plate member is fixed to the other one of the upper arm and the intermediate arm so as to be supported by the first plate member to rotate relative thereto. The pawl gear is supported by the second plate member and has an external tooth section each of which has a plurality of teeth with different widths for engaging with the internal tooth sections.

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: A seat apparatus for a vehicle having a seat cushion on which an occupant is seated, includes a pad forming a seating surface, a cover for covering the pad, a frame positioned below the pad at each side of the seat cushion, relative to a width direction of the seat cushion and including a main body forming a side wall which extends in vertical and longitudinal directions relative to the seat cushion and an aperture formed at the main body, and a retainer attached to an end portion of the cover and retained at a peripheral portion of the aperture for fixing the cover to the frame.

Abstract: A seat reclining apparatus for a vehicle includes: a first plate adapted to be mounted on one of a seat cushion and a seat back and having inner teeth; a second plate adapted to be mounted on the other one of the seat cushion and the seat back and supporting the first plate to be rotatable; a pole directly and movably supported by the second plate and having outer teeth engageable and disengageable with the inner teeth of the first plate; a pair of guides formed at the second plate and interposing therebetween the pole from both sides, the guide including a pole sliding surface adjusted to slidably come in contact with a side surface of the pole; and a recess formed at the pole sliding surface of the guide.