Abstract: A seat reclining device includes a ratchet and a guide assembled to be rotatable relative to each other, a pawl capable of restricting relative rotation between the ratchet and the guide, and a rotation cam that pushes and moves the pawl. The pawl has an eccentric structure in which the pawl is pressed and inclined to one side in the rotation direction due to a pressing force received from the rotation cam, and has a first protrusion that restricts the inclination of the pawl by contact with a guide wall that the first protrusion faces.

Abstract: A seat reclining device includes a ratchet and a guide assembled to be rotatable relative to each other, a pawl capable of restricting relative rotation between the ratchet and the guide, and a rotation cam that pushes and moves the pawl. The pawl has an eccentric structure in which the pawl is pressed and inclined to one side in the rotation direction due to a pressing force received from the rotation cam, and has a first protrusion that restricts the inclination of the pawl by contact with a guide wall that the first protrusion faces.

Abstract: Provided is a sliding device. The sliding device includes a fixed rail, a movable rail, a rack, a pinion, a locking mechanism that restricts sliding of the movable rail, and a gear mechanism. The gear mechanism includes multiple gears and transmits a rotation generated in an electric motor to the pinion. The gear mechanism is configured such that the pinion is capable of rotating more than a specified angle of rotation when the electric motor is in a stopped state.

Abstract: A shaft housing hole has a shaft insertion hole into which the rotating shaft section of an engagement member is inserted. Also, the shaft housing hole has slits extending from the lower end of the shaft insertion hole along the side surface of the shaft insertion hole toward an upper connection wall section. The upper side wall section of an upper rail has shaft restriction sections formed by the shaft housing hole. The shaft restriction sections have front ends with which the side surfaces of the rotating shaft section are in contact.

Abstract: A seat sliding device for a vehicle includes a sliding load adjusting mechanism. The sliding load adjusting mechanism includes a support member, which is fixed to a first rail that is one of a lower rail and an upper rail, and a pressing member, which is movably supported by the support member. The pressing member changes a frictional force that is generated between the pressing member and a second rail, which is the other one of the lower rail and the upper rail, in accordance with a pressing force applied to the second rail. The pressing force changes in accordance with the position of the pressing member in relation to the support member. As the upper rail moves in a first direction, the pressing member moves toward a side on which the pressing force is reduced.

Abstract: A second bracket of a vehicle seat reclining device includes a first pawl restriction portion and a second pawl restriction portion arranged respectively in correspondence with a first pawl and a second pawl to restrict movement of the first pawl and the second pawl in the radial direction. The second pawl restriction portion is located toward the positive direction and a radially inner side from the first pawl restriction portion. Negative direction ends of the first pawl restriction portion and the second pawl restriction portion are arranged to contact positive direction corners of the limitation portions of the first pawl and the second pawl when a rotation angle of the second bracket relative to the first bracket is a specified angle. The first pawl restriction portion allows movement of the second pawl toward the radially outer side.

Abstract: A vehicle seat sliding apparatus includes a lower rail, an upper rail, a slide-lock mechanism that pivots the lock member to a slide-lock position and holds the upper rail in a slide-lock state, and a slide-lock cancellation unit moved by operation of an operation member in a longitudinal direction of the upper rail to cancel an action of the slide-lock mechanism. The slide-lock cancellation unit includes a drive unit and an inclined surface arranged in the drive unit. The drive unit is supported by the upper rail so as to be slidable in the longitudinal direction of the upper rail. Operation of the operation member slides the drive unit. The inclined surface pivots the lock member to a slide-lock cancellation position when sliding.

Abstract: Provided is a sliding device. The sliding device includes a fixed rail, a movable rail, a rack, a pinion, a locking mechanism that restricts sliding of the movable rail, and a gear mechanism. The gear mechanism includes multiple gears and transmits a rotation generated in an electric motor to the pinion. The gear mechanism is configured such that the pinion is capable of rotating more than a specified angle of rotation when the electric motor is in a stopped state.

Abstract: A vehicle seat sliding apparatus includes a lower rail, an upper rail, a slide-lock mechanism that pivots the lock member to a slide-lock position and holds the upper rail in a slide-lock state, and a slide-lock cancellation unit moved by operation of an operation member in a longitudinal direction of the upper rail to cancel an action of the slide-lock mechanism. The slide-lock cancellation unit includes a drive unit and an inclined surface arranged in the drive unit. The drive unit is supported by the upper rail so as to be slidable in the longitudinal direction of the upper rail. Operation of the operation member slides the drive unit. The inclined surface pivots the lock member to a slide-lock cancellation position when sliding.

Abstract: A seat adjuster for a vehicle seat is provided. The seat adjuster comprises a rotation mechanism that comprises a rotation part, a rotation drive device that rotates the rotation part, an engagement target member that is configured to be rotated integrally with the rotation part and comprises engagement target portions formed along a rotational direction of the engagement target member, and an engagement member that is configured so that, when one of the engagement target portions is located in a specified engageable position, the engagement member is moved in a direction closer to the engagement target member to be engageable with the one of the engagement target portions located in the specified engageable position.

Abstract: A shaft housing hole (27) has a shaft insertion hole (31) into which the rotating shaft section (45) of an engagement member (40) is inserted. Also, the shaft housing hole (27) has slits (32, 34) extending from the lower end of the shaft insertion hole (31) along the side surface of the shaft insertion hole (31) toward an upper connection wall section (21). The upper side wall section (22) of an upper rail (20) has shaft restriction sections (33, 35) formed by the shaft housing hole (27). The shaft restriction sections (33, 35) have front ends (33b, 35b) with which the side surfaces of the rotating shaft section (45) are in contact.

Abstract: A seat sliding apparatus for a vehicle includes a lower rail, an upper rail supported to be movable relative to the lower rail, and a pressing member attached to one of the lower rail and the upper rail via a biasing member. The pressing member constantly presses the other of the lower rail and the upper rail by a biasing force of the biasing member. The lower rail and the upper rail extend in a first direction. The pressing member obliquely presses the other of the lower rail and the upper rail so that force components are generated in both the first direction and in a second direction orthogonal to the first direction.

Abstract: A seat slide apparatus for a vehicle, the seat slide apparatus includes: a lower rail which is fixed to a vehicle floor; an upper rail which is slidably engaged with the lower rail; and a rolling element circulation unit having rolling elements and interposed between the lower rail and the upper rail in a state where the rolling elements are able to be circulated, in which the lower rail includes a bottom wall portion, sidewall portions, and upper wall portions, the upper rail includes a main body portion, and folded-back portions, the rolling element circulation unit includes a case having an annular accommodating path accommodating the rolling elements, between the lower rail and the upper rail, an upper rolling element circulation unit and a lower rolling element circulation unit are provided to be disposed at two positions spaced apart from each other, and the upper rail includes a pedestal portion.

Abstract: A seat slide apparatus for a vehicle, the seat slide apparatus includes: a lower rail which is fixed to a vehicle floor; an upper rail which is slidably engaged with the lower rail; and a rolling element circulation unit having rolling elements and interposed between the lower rail and the upper rail in a state where the rolling elements are able to be circulated, in which the lower rail includes a bottom wall portion, sidewall portions, and upper wall portions, the upper rail includes a main body portion, and folded-back portions, the rolling element circulation unit includes a case having an annular accommodating path accommodating the rolling elements, between the lower rail and the upper rail, an upper rolling element circulation unit and a lower rolling element circulation unit are provided to be disposed at two positions spaced apart from each other, and the upper rail includes a pedestal portion.

Abstract: A second bracket of a vehicle seat reclining device includes a first pawl restriction portion and a second pawl restriction portion arranged respectively in correspondence with a first pawl and a second pawl to restrict movement of the first pawl and the second pawl in the radial direction. The second pawl restriction portion is located toward the positive direction and a radially inner side from the first pawl restriction portion. Negative direction ends of the first pawl restriction portion and the second pawl restriction portion are arranged to contact positive direction corners of the limitation portions of the first pawl and the second pawl when a rotation angle of the second bracket relative to the first bracket is a specified angle. The first pawl restriction portion allows movement of the second pawl toward the radially outer side.

Abstract: A seat sliding apparatus for a vehicle includes a lower rail, an upper rail supported to be movable relative to the lower rail, and a pressing member attached to one of the lower rail and the upper rail via a biasing member. The pressing member constantly presses the other of the lower rail and the upper rail by a biasing force of the biasing member. The lower rail and the upper rail extend in a first direction. The pressing member obliquely presses the other of the lower rail and the upper rail so that force components are generated in both the first direction and in a second direction orthogonal to the first direction.

Abstract: A seat adjuster for a vehicle seat is provided. The seat adjuster comprises a rotation mechanism that comprises a rotation part, a rotation drive device that rotates the rotation part, an engagement target member that is configured to be rotated integrally with the rotation part and comprises engagement target portions formed along a rotational direction of the engagement target member, and an engagement member that is configured so that, when one of the engagement target portions is located in a specified engageable position, the engagement member is moved in a direction closer to the engagement target member to be engageable with the one of the engagement target portions located in the specified engageable position.

Abstract: A vehicular seat slide device is provided with a lower an upper rail, a lock member, a memory piece, a memory link, a slide member, and a stopper member. The memory piece is engaged with the upper rail and the lower rail. The memory link releases the lock member and the memory piece with urging force of a memory link urging member, and pivots in a releasing direction to press the lock member in a pivot direction and press the memory piece against the urging force of the memory piece urging member. The slide member releases the memory link with urging force of a slider urging member, and presses the memory link in the release direction by moving as a seat back is collapsed forward. After the seatback is collapsed forward and the upper rail is moved in a seat-rearward direction, the stopper member contacts the memory piece.

Abstract: A vehicular seat slide device is provided with a lower rail, an upper rail, a lock member, a memory piece, a memory link, a slide member, and a stopper member. The memory piece is engaged with the upper rail and the lower rail. The memory link releases the lock member and the memory piece with urging force of a memory link urging member, and pivots in a releasing direction to press the lock member in a pivot direction and press the memory piece against the urging force of the memory piece urging member. The slide member releases the memory link with urging force of a slider urging member, and presses the memory link in the release direction by moving as a seat back is collapsed forward. After the seatback is collapsed forward and the upper rail is moved in a seat-rearward direction, the stopper member contacts the memory piece.

Abstract: A vehicle seat sliding apparatus includes: a first rail fixed to one of a vehicle floor and a seat and having first vertical wall portions, a first connection wall portion, and flanges; and a second rail fixed to the other one of the vehicle floor and the seat and having second vertical wall portions, a second connection wall portion, outward extending wall portions, and extending wall portions, wherein locking claws are aligned side by side at tip ends of the flanges of the first rail; the second rail is provided with through-holes; the vehicle seat sliding apparatus further includes, a locking member having locking portions, and a biasing member; and the outward extending wall portions are provided with flat portions.