Abstract: A seat reclining apparatus includes: first and second reclining lock mechanisms that operate in a locked state and an unlocked state, where the locked state prevents a seat back from tilting and the unlocked state allows the tilting; a first rotation member that rotates toward an unlocking direction integrally with the shaft body to change the first reclining lock mechanism from the locked state to the unlocked state; and a second rotation member that is operated to rotate by an operation member toward the unlocking direction to change the second reclining lock mechanism from the locked state to the unlocked state via a cable. When the operation member is operated, the second rotation member rotates from the locking position toward the unlocking direction by a predetermined amount, subsequently transmits a rotation force to the first rotation member toward the unlocking direction via an interlocking portion.

Abstract: A seat reclining apparatus includes: first and second reclining lock mechanisms that operate in a locked state and an unlocked state, where the locked state prevents a seat back from tilting and the unlocked state allows the tilting; a first rotation member that rotates toward an unlocking direction integrally with the shaft body to change the first reclining lock mechanism from the locked state to the unlocked state; and a second rotation member that is operated to rotate by an operation member toward the unlocking direction to change the second reclining lock mechanism from the locked state to the unlocked state via a cable. When the operation member is operated, the second rotation member rotates from the locking position toward the unlocking direction by a predetermined amount, subsequently transmits a rotation force to the first rotation member toward the unlocking direction via an interlocking portion.

Abstract: A seat cushion frame structure of a seat for a vehicle has an oblique monolithic strip on at least one of a pair of side frames an upper end of which is fixed to a side portion of the at least one of pair of side frames and a lower end of which is fixed to the seat cushion frame structure at a position forward of the upper end. The oblique monolithic strip is arranged in such a way that one of its strip surfaces opposed to each other is oriented to be upward, its cross section perpendicular to the opposed strip surfaces is a rectangle long in a lateral direction and includes at each of its upper and lower ends a wound portion which is wound in a loop manner in such a way that the one of said opposed strip surfaces is oriented to be inward.

Abstract: A seat back frame structure of a seat for a vehicle has a seat back frame structure, a lower end of which is connected to a rear end of a seat cushion frame structure in such a way that the seat back frame structure can be inclined relative to the seat cushion frame structure, the seat back frame structure includes a pair of side frames, each of which extends in a vertical direction of the vehicle, and an oblique wire on at least one of the pair of side frames, an upper end of which is fixed to a side portion of the at least one of the pair of side frames and a lower end of which is fixed to the seat back frame structure at a position forward of a rotational center of the seat back frame structure.

Abstract: A slide structure of a seat for a vehicle positions a cushion seat in the longitudinal direction of the vehicle has a stationary outer rail which extends in the longitudinal direction of the vehicle and a substantially C-shaped cross section, an open portion which is oriented to be inner in the widthwise direction, and is disposed such that its cross section is elongate in the vertical direction, a movable inner rail which extends in the longitudinal direction of the vehicle and fits over the stationary outer rail so as to be slid relative to the stationary outer rail in the longitudinal direction and is fixed on the cushion seat and includes a substantially C-shaped cross section, an open portion of which is oriented to be outer in the widthwise direction, and is disposed in such a way that its side surface is elongate in the vertical direction.

Abstract: A seat cushion frame structure of a seat for a vehicle has a seat cushion frame structure, a rear end of which is connected to a lower end of a seat back frame structure in such a way that the seat back frame structure can be inclined relative to the seat cushion frame structure, the seat cushion frame structure includes a pair of side frames, each of which extends in a longitudinal direction of the vehicle, and an oblique wire on at least one of the pair of side frames, an upper end of which is fixed to a side portion of the at least one of pair of side frames and a lower end of which is fixed to the seat cushion frame structure at a position forward of the upper end.

Abstract: A seat cushion frame structure of a seat for a vehicle has an oblique monolithic strip on at least one of a pair of side frames an upper end of which is fixed to a side portion of the at least one of pair of side frames and a lower end of which is fixed to the seat cushion frame structure at a position forward of the upper end. The oblique monolithic strip is arranged in such a way that one of its strip surfaces opposed to each other is oriented to be upward, its cross section perpendicular to the opposed strip surfaces is a rectangle long in a lateral direction oblique monolithic strip and includes at each of its upper and lower ends a wound portion which is wound in a loop manner in such a way that the one of said opposed strip surfaces is oriented to be inward.

Abstract: A slide structure of a vehicle seat is capable of maintaining an aesthetic external appearance and a safety of the vehicle seat and has a stationary outer rail which extends in the longitudinal direction of the vehicle and includes a substantially C-shaped cross-section an opening portion of which is oriented inwardly in the widthwise direction of the vehicle and is disposed to exhibit an elongated cross-section in the vertical direction of the vehicle, and a movable inner rail which extends in the longitudinal direction of the vehicle and fits over said stationary outer rail so as to be slidable in the longitudinal direction of the vehicle relative to said stationary outer rail and is fixed on the seat cushion.

Abstract: There is provided a slide structure of a vehicle seat comprises a stationary outer rail, a movable inner rail, and means for locking said movable inner rail which locks said movable inner rail against said stationary outer rail in the longitudinal direction, said movable inner rail fits with said stationary outer rail in such a way that opening portions formed by the respective C-shaped cross-sections face each other, a retainer extending in the longitudinal direction is provided between said stationary outer rail and said movable inner rail, said retainer includes a retaining portion for retaining a ball rolling between said two rails, said movable side surface, said stationary side surface and said retainer side surface portion are all disposed along the vertical direction of the vehicle, whereby each of said stationary outer rail and said movable inner rail is arranged to form a vertically elongated cross-section.

Abstract: A slide structure of a seat for a vehicle positions a cushion seat in the longitudinal direction of the vehicle has a stationary outer rail which extends in the longitudinal direction of the vehicle and a substantially C-shaped cross section, an open portion which is oriented to be inner in the widthwise direction, and is disposed such that its cross section is elongate in the vertical direction, a movable inner rail which extends in the longitudinal direction of the vehicle and fits over the stationary outer rail so as to be slid relative to the stationary outer rail in the longitudinal direction and is fixed on the cushion seat and includes a substantially C-shaped cross section, an open portion of which is oriented to be outer in the widthwise direction, and is disposed in such a way that its side surface is elongate in the vertical direction.

Abstract: There is provided a slide structure of a vehicle seat comprises a stationary outer rail, a movable inner rail, and means for locking said movable inner rail which locks said movable inner rail against said stationary outer rail in the longitudinal direction, said movable inner rail fits with said stationary outer rail in such a way that opening portions formed by the respective C-shaped cross sections faces each other, a retainer extending in the longitudinal direction is provided between said stationary outer rail and said movable inner rail, said retainer includes a retaining portion for retaining a ball rolling between said two rails, said movable side surface, said stationary side surface and said retainer side surface portion are all disposed along the vertical direction of the vehicle, whereby each of said stationary outer rail and said movable inner rail is arranged to form a vertically elongated cross section.

Abstract: A slide structure of a vehicle seat is capable of maintaining an aesthetic external appearance and a safety of the vehicle seat and has a stationary outer rail which extends in the longitudinal direction of the vehicle and includes a substantially C-shaped cross-section an opening portion of which is oriented inwardly in the widthwise direction of the vehicle and is disposed to exhibit an elongated cross-section in the vertical direction of the vehicle, and a movable inner rail which extends in the longitudinal direction of the vehicle and fits over said stationary outer rail so as to be slidable in the longitudinal direction of the vehicle relative to said stationary outer rail and is fixed on the seat cushion.

Abstract: An object of the present invention is to provide a seat back frame structure for a vehicle and a seat for a vehicle with such a seat back frame structure which are capable of securing a necessary strength or rigidity, while at the same time attaining the decrease of its weight and its cost.

Abstract: An object of the present invention is to provide a seat cushion frame structure of a seat for a vehicle and a seat for a vehicle with such a seat cushion frame structure which are capable of securing a necessary strength or rigidity, while at the same time attaining the decrease of a weight and a cost of a seat.

Abstract: A reclining apparatus (20) is provided with a fixed plate (21) having guide portions (41, 42), a shaft (30), a rotary plate (22) having an internal gear (66), slide gears (70, 71), a cam member (72) and the like. The cam member (72) has a pair of hook portions (100) engaging with a receiving portion (87) in the slide gears (70, 71). The hook portion (100) and the receiving portion (87) are formed in such a shape as to move the slide gears (70, 71) is a direction of canceling a rotational moment applied to the slide gears (70, 71) due to a backward load applied to the seat back when the cam member (72) rotates in a lock canceling direction. A supporting portion (120) preventing the slide gears (70, 71) from moving in a direction of the rotational moment is provided in an opposing portion between the cam member (72) and the slide gears (70, 71).

Abstract: The invention provided a reclining apparatus is provided with a fixed plate in which a guide portion having a pair of mutually opposing guide walls is provided, a shaft provided in the fixed plate so as to freely rotate around an axis in a horizontal direction, a rotary plate relatively rotating around the shaft with respect to the fixed plate and in which an internal gear is provided along a circular arc around the shaft, a slide gear received between respective guide walls of the guide portion and freely moving between a lock position engaged with the internal gear and a lock canceling position moving apart from the internal gear, and a cam member mounted to the shaft and rotated by the shaft, thereby moving the slide gear to the lock position and the lock canceling position. A wall portion protruding to a side of the internal gear and a side of the guide portion in a plan view is provided in the slide gear, and a side surface of the wall portion is slidably in contact with the guide portion.

Abstract: The invention provided a reclining apparatus is provided with a fixed plate in which a guide portion having a pair of mutually opposing guide walls is provided, a shaft provided in the fixed plate so as to freely rotate around an axis in a horizontal direction, a rotary plate relatively rotating around the shaft with respect to the fixed plate and in which an internal gear is provided along a circular arc around the shaft, a slide gear received between respective guide walls of the guide portion and freely moving between a lock position engaged with the internal gear and a lock canceling position moving apart from the internal gear, and a cam member mounted to the shaft and rotated by the shaft, thereby moving the slide gear to the lock position and the lock canceling position. A wall portion protruding to a side of the internal gear and a side of the guide portion in a plan view is provided in the slide gear, and a side surface of the wall portion is slidably in contact with the guide portion.

Abstract: A base plate is formed having a pair of guide projections projecting in the thickness direction thereof and an auxiliary projection situated between the guide projections. An internal gear is provided on the inner surface of an offset portion that is formed on a movable arm. An external gear on a latch member is in mesh with the internal gear. The guide projections and the auxiliary projection are fitted in the offset portion. The latch member is interposed between the first and second guide projections so as to be slidable in the vertical direction. The latch member can be moved to be disengaged from the internal gear by means of a cam member that rotates integrally with an operating lever. The auxiliary projection is inserted in a hole in the latch member and arranged on a line connecting the end portions of the guide projections.