Abstract: A seat sliding device for a vehicle includes a first rail, which is adapted to be fixed to one of a vehicle floor and a seat and a second rail, which is adapted to be fixed to the other one of the vehicle floor and the seat and coupled to the first rail to make relative movement with respect to the first rail. An urging member is provided with a latch part, which is latched to a second coupling wall part and a latch end part, which is latched to a lock lever. The urging member generates in association with bending deformation an urging force which urges the lock lever in a vertical direction toward a direction in which the lock lever engages with the first rail. The urging member has a coil part wound about a rotating shaft between the latch part and the latch end part.

Abstract: An engagement section of a pole and a protruding section of an upper arm restrict movement of the pole outward in the radial direction and disable meshing of outer teeth and inner teeth, when the relative rotation angle of a lower arm and the upper arm is within a prescribed range. Outer teeth and the inner teeth of poles cannot engage as a result of the restriction on movement of the pole outward in the radial direction. The amount of movement by the poles separating from the inner teeth along the radial direction is set so as to be greater than the amount of movement by the pole separating from the inner teeth along the radial direction, when the pole reaches a position corresponding to where the outer teeth and the inner teeth cannot mesh as a result of the protruding section, etc., during the unlock operation.

Abstract: A sliding device for a vehicle comprises a lock member received and attached within a section area of one of relatively movable first and second rails for locking the relative movement between the first and second rails; and a manipulation lever provided for moving the lock member to permit the relative movement between the first and second rails. A movement permitting portion is formed on at at least one of the lock member and the rail attaching the lock member so that the relative movement between the lock member and the rail attaching the lock member in the rail axis direction is allowed with the lock member locking the relative movement. Further, a movement restraining portion is formed on the rail attaching the lock member to restrain the movement in a lock release direction of the lock member after the relative movement at the movement permitting portion.

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 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 reclining device includes a pawl having external teeth, a first arm, a second arm, a cam assembly, and a pressing member. The first arm has a pair of guide walls that guide the pawl in the radial direction. The second arm is rotationally supported by the first arm and has internal teeth. When the cam assembly rotates in a forward direction, the cam assembly presses and moves the pawl radially outward to mesh the external teeth with the internal teeth, and presses the pressing member radially outward. When pressed radially outward, the pressing member presses the pawl in the radial direction and a direction from the guide wall towards the pawl. When the cam assembly rotates in a reverse direction, the cam assembly releases the pressing member and moves the pawl radially inward to separate the external teeth from the internal teeth.

Abstract: A seat slide apparatus for a vehicle includes a first rail provided with a limiting portion extending from an end of each of the first folded back wall portions at a predetermined position in a longitudinal direction of the first rail, a second rail provided with a first through-hole extending through each of the second side wall portions and a second through-hole extending through each of the adjacent second folded back wall portions, the through-holes facing in the width direction at a predetermined position in the longitudinal direction of the second rail, and locking members, each of which is inserted through the first through-hole and the adjacent second through-hole and bridges the second side wall portion and the adjacent second folded back wall portion in the width direction and blocks a movement of the limiting portion in directions the first rail and the second rail move relative to each other.

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 an upper rail retaining a seat above the upper rail, a lower rail retaining the upper rail in a state where the upper rail moves relative to the lower rail, a rolling element arranged between the lower rail and the upper rail and a retaining member configured to retain the rolling element between the lower rail and the upper rail, the retaining member including a protruding portion having a top portion arranged to slidably contact with a rolling surface at which the rolling element rolls. The protruding portion includes a spreading portion extending from the top portion in an elongating direction, the elongating direction conforming to a path of the rolling element formed on the rolling surface, the spreading portion tapering to a sharp end form with an increasing distance from the top portion in the elongating direction.

Abstract: A vibration proof structure of a seat apparatus for a vehicle, includes a first member and a second member movably arranged relative to each other in a first relative direction corresponding to a forward movement of a seat element in a front and rear direction of the vehicle and in a second relative direction corresponding to a rearward movement of the seat element in the front and rear direction, a first restriction wall restricting a relative movement of the first member to the second member in the first relative direction, a second restriction wall restricting the relative movement of the first member to the second member in the second relative direction, and a resistance force applying portion applying a resistance force to the first member moving in the first relative direction while not applying the resistance force to the first member moving in the second relative direction.

Abstract: A seat reclining apparatus includes a lower arm, an upper arm, plural pawls being movable in a radial direction along guide walls of the lower arm therewithin and including external teeth being engageable with and disengageable from internal teeth of the upper arm, a cam contacting and pressing the pawls in a direction of meshing the external teeth with the internal teeth when the cam is rotated in a locking direction, a biasing member, whose first and second end portions are engaged with an accommodating portion and the cam, respectively, biasing the cam in the locking direction, a restricting protrusion portion formed on a surface of the cam facing the lower arm and slidably contacting an inner surface of the accommodating portion in order to avoid an eccentricity of the cam, and an engagement protruding portion provided on the surface at a position radially inwardly of the restricting protrusion portion.

Abstract: The seat lifter device for a vehicle includes a lock/unlock device which is formed with an engagement/disengagement mechanism to produce a lock condition in which the relative rotation between a first rotation member and a second rotation member is restricted and an unlock condition in which the relative rotation therebetween is allowed by the engagement/disengagement operation of the engagement/disengagement mechanism such that a detent member movably supported on the first rotation member fixed to the base frame side engages with or disengages from the second rotation member fixed to the rear link member. This seat lifter device can firmly hold the seat lifted position even when an exterior force generated upon a vehicle collision is applied to the engagement/disengagement mechanism through the rear link member.

Abstract: An ottoman device includes an ottoman, a link mechanism supporting the ottoman and configured to selectively move the ottoman to a deployed position and a retracted position, and a base bracket configured to support the link mechanism to a front edge of a vehicle seat, the base bracket being configured to be fixed to a front edge portion of a cushion frame of the vehicle seat and to a side slide rail which is provided to be movable integrally with the cushion frame in a width direction and which is positioned below the front edge portion to support the cushion frame.

Abstract: An ottoman device includes a base bracket, a link mechanism supporting an ottoman and including a rotation link, engagement portions formed at facing surfaces that are provided at the rotation link and the base bracket respectively and engaging with each other to restrict a rotation of the rotation link, at least one of the engagement portions including an inclined surface serving as an engagement surface, a restriction portion restricting a relative axial movement between the rotation link and the base bracket in a direction in which the rotation link is separated from the base bracket in a load range where an engagement state between the engagement portions is maintainable, and an operation portion configured to change a relative position between the rotation link and the base bracket by moving the restriction portion in an axial direction of the rotation shaft.

Abstract: A plurality of rolling members, which are retained by retainers between sidewall-portion inside operating surfaces formed on inside surfaces of sidewall portions of a lower rail and sidewall-portion outside operating surfaces formed on outside surfaces of sidewall portions of a first upper rail, roll in contact on the sidewall-portion inside operating surfaces and the sidewall-portion outside operating surfaces. Sidewall portions of a second upper rail are cut and raised at parts of only a predetermined length in a vehicle front-rear direction to be formed as rolling-element rolling portions having sidewall-portion outside operating surfaces. Rolling element circulation units each incorporating a plurality of rolling elements are fitted on the rolling-element rolling portions, so that the plurality of rolling elements roll and circulate in contact with the sidewall-portion inside operating surfaces and the sidewall-portion outside operating surfaces of rolling-element rolling portions.

Abstract: A seat frame includes a projecting portion formed on a surface of a recliner to face a reinforcement plate, the projecting portion having a cross sectional shape with a recessed portion and a protruded portion in a rotational direction of the recliner, the reinforcement plate including a first through-hole for fitting the projecting portion, the upward-downward direction frame including a second through-hole larger than the first through-hole which extends within the second through-hole when the upward-downward direction frame and the reinforcement plate are overlaid, and a three-member welding portion formed by a periphery of the projecting portion, a periphery of the first through-hole, and a periphery of the second through-hole wherein the recliner, the reinforcement plate, and the upward-downward direction frame are welded with the projecting portion of the recliner fitting to the first through-hole of the reinforcement plate while the reinforcement plate and the upward-downward direction frame are overla

Abstract: A seat back frame includes: a first side member and a second side member each formed into an elongated shape along an up-and-down direction of a seat back so as to support each side portion of the seat back; and a belt guide portion on which tension of a seat belt is applied when the seat belt is pulled, the belt guide portion being formed in an upper portion of the first side member and guiding the seat belt having the one end retained by a seat belt retaining member.

Abstract: A memory mechanism is provided with engagement portions, a housing recess, a memory plate, and engagement receiving portions. The engagement portions are provided to an adjacent pair of pawls, respectively. The housing recess has a cylindrical shape and is provided to a first member. The memory plate is formed in an annular shape which is cut at one point. The memory plate is housed within the housing recess while being reduced in diameter with the cut portion disposed between the engagement portions. The engagement receiving portions are respectively adjacent between the engagement portions of the memory plate, to the engagement portions. The engagement portions are engaged with and disengaged from the engagement receiving portions as the pawls move in the radial direction.

Abstract: A holder in a seat reclining device for vehicle has a body portion which comprises a cover wall slidably covering an end surface at an outer circumferential portion of an upper arm on an opposite side to a lower arm and a circumferential wall formed continuously with the cover wall and covering an outer circumferential surface of the lower arm, and fixed portions provided at an end of the circumferential wall and fixed by pressing on an end surface at an outer circumferential portion of the lower arm on an opposite side to the upper arm. The holder is formed with a plurality of load receiving portions cut and bent from the body portion to contact an end surface at the outer circumferential portion of the lower arm on the upper arm side for supporting a pressing load at the time of a fixing by pressing.

Abstract: The seat lifter device for a vehicle includes a lock/unlock device which is formed with an engagement/disengagement mechanism to produce a lock condition in which the relative rotation between a first rotation member and a second rotation member is restricted and an unlock condition in which the relative rotation therebetween is allowed by the engagement/disengagement operation of the engagement/disengagement mechanism such that a detent member movably supported on the first rotation member fixed to the base frame side engages with or disengages from the second rotation member fixed to the rear link member. This seat lifter device can firmly hold the seat lifted position even when an exterior force generated upon a vehicle collision is applied to the engagement/disengagement mechanism through the rear link member.