Abstract: To improve sitting comfort performance and posture stability using a method other than increasing hardness of a seat pad. The present disclosure provides a vehicle seat, constituted of: a seat including a front insert wire and a rear insert wire which are disposed inside a seat pad, a backrest, and a suspending structure configured to engage a seat cover with a front suspending groove and a rear suspending groove of the seat pad. The front insert wire includes a front main load receiving portion which protrudes backward from a peripheral portion, and the rear insert wire includes a rear main load receiving portion which protrudes forward from a peripheral portion. The rear insert wire is disposed at a position where at least the rear main load receiving portion is ahead of the rear suspending groove, and the front insert wire is disposed at a position where at least the front main load receiving portion is behind the front suspending groove.

Abstract: In order to cause no difficulty in an assembling process for assembling a resin plate to a seatback even if a plurality of bosses formed on the resin plate vary somewhat in dimension in a height direction, and also in order to prevent unpleasant noise, a vehicle seat is provided in which the resin plate of the seatback has a plurality of bosses formed thereon in positions facing the seatback frame, and under no load on the resin plate, some of the plurality of bosses are in contact with the seatback frame and the remaining ones of the plurality of bosses are out of contact with the seatback frame. On the other hand, while the resin frame is deformed by application of load in a direction of the seatback frame, the some bosses and the remaining bosses are in contact with the seatback frame to bear the load.

Abstract: A sliding device that slidably supports a seat body of a vehicle seat is provided. The sliding device includes: a fixed rail; a movable rail; a locking member displaceable between a locking position and an unlocking position, a sliding movement of the movable rail being restricted in the locking position, and restriction of the sliding movement being released in the unlocking position; a retention spring configured to apply to the locking member a retaining force to retain the locking member in the locking position; a release lever configured to displace the locking member to the unlocking position; a return spring configured to apply to the release lever an elastic force to return the release lever to its initial position; and a restrictor configured to restrict a displacement of the release lever.

Abstract: To provide a vehicle seat that can achieve both of improvement in operability of a reclining operation and size reduction of the entire vehicle seat. This vehicle seat includes a link mechanism pivoted to a seat cushion (cushion frame), a seat back (back frame), and a leg rest (leg frame), and a hinge pin which is engageable with the link mechanism and disengageable therefrom. In the vehicle seat in a state of being between a seating position and a relaxation position, the hinge pin is engaged with the link mechanism. Accordingly, the seat back and the leg rest can be inclined in coordination with sliding movement of the seat cushion relative to a vehicle body. Thus, the vehicle seat can achieve both of improvement in operability of a reclining operation and size reduction of the entire vehicle seat.

Abstract: A head rest, includes: a stay supported by a seat back of a vehicle seat; an accommodation member forming an accommodation space for accommodating a part of the stay; and a cover member covering a part of the accommodation member to form a part of an outer surface, in which the accommodation member includes a pair of side surface portions and an upper surface portion, the pair of side surface portions being disposed side by side in a left-right direction of the vehicle seat, and the upper surface portion being disposed between end portions of the pair of side surface portions on an upper side of the vehicle seat, and in which the cover member includes a pair of first cover members and a second cover member, the pair of first cover members covering the pair of side surface portions, and the second cover member covering the upper surface portion.

Abstract: A head rest includes: a stay supported by a seat back of a vehicle seat; and an accommodation member forming an accommodation space for accommodating a part of the stay, in which the accommodation member includes a first member, a second member, and third member, the first member and the second member being disposed side by side in a front-rear direction of the vehicle seat, and the third member covering a space between the first member and the second member, and in which the third member includes a pair of side surface portions and an upper surface portion, the pair of side surface portions being disposed side by side in a left-right direction of the vehicle seat, and the upper surface portion connecting end portions of the pair of side surface portions on an upper side of the vehicle seat.

Abstract: A plurality of pressing portions 38 protrude inward in a radial direction from an inner peripheral surface of a tubular main body portion 35 (part of a tube body) and are each fixed at both ends thereof in an up-down direction to the main body portion 35. Since the plurality of pressing portions 38 are aligned in the up-down direction, a stay 22 or 23 can be inhibited from oscillating with a contact portion between one pressing portion 38 and the stay 22 or 23 as a fulcrum. As a result, rattling of the stay 22 or 23 relative to a headrest holder 30 or 31 can be suppressed.

Abstract: An object is to provide a fixing structure of a webbing which can improve workability when a webbing is mounted and can also contribute to cost reduction, and a vehicle seat provided therewith. A fixing structure of a webbing in a vehicle seat having an airbag device, including an airbag module fixed to a seat frame of the vehicle seat, a first webbing and a second webbing surrounding the airbag module together with the seat frame and guiding the inflating airbag to an airbag outlet on a seat surface, a locked portion provided on a first end part of the first webbing, a fixed portion provided on a second end part of the second webbing, a locking member formed of a member having rigidity and having a fixing portion to which the fixed portion of the second webbing is fixed and a locking portion which hooks and locks the locked portion of the first webbing.

Abstract: Since each covering portion (each side frame) is interposed between a first leg portion and a second leg portion of a corresponding one of insert members, even if a relatively large load is applied to side portions of a cushion pad from an occupant, it is possible to restrict deformation of the side portions toward outer sides in left-right directions (rotation of the insert members) by engagement of each support frame with the first and second leg portions. Therefore, it is possible to improve the ability to support an occupant by the side portions.

Abstract: A seat sliding device includes: a lower rail; an upper rail; a lock member; a spring member; and an operation lever, the first fixing portion of the spring member which has a ring shape having an outside diameter greater than a width between the pair of the side walls of the upper rail, which has a spring force in a diameter increasing direction between the pair of the side walls of the upper rail, and which includes a first mounting portion and a second mounting portion that are configured to be mounted and fixed, respectively, in the first hole portion and the second hole portion by the spring force.

Abstract: A vehicle seat that can suppress damage to an on-board object is provided. In each side frame of a cushion frame, an eccentric portion is eccentric outward in a right-left direction with respect to a base portion, and in each side frame of a back frame, an eccentric portion is eccentric inward in the right-left direction with respect to a base portion. Thus, when the load at the time of rear collision acts, each side frame of the cushion frame easily becomes deformed outward in the right-left direction, and each side frame of the back frame easily becomes deformed inward in the right-left direction. Accordingly, the deformation direction of each side frame of the cushion frame and the deformation direction of each side frame of the back frame can be easily made opposite to each other, and the deformations of the respective side frames and can be inhibited.

Abstract: A vehicle seat having fewer components and having a pitching mechanism advantageous for strength/rigidity is provided. The vehicle seat includes: a base frame mounted in a vehicle compartment; a cushion frame pin-connected to a first connecting point of the base frame to be capable of a forward leaning operation; a back frame disposed to be capable of a reclining operation with respect to the cushion frame; a front link swingably pin-connected at a proximal end side thereof with a second connecting point of the base frame and slidably connected at a distal end side thereof with the cushion frame; a lock unit for locking the cushion frame to the base frame at a seated position and regulating a pitching operation of the main frame; and a release member for releasing a locked state.

Abstract: An object is to provide a fixing structure of a webbing which can improve workability when a webbing is mounted and can also contribute to cost reduction, and a vehicle seat provided therewith. A fixing structure of a webbing in a vehicle seat having an airbag device, including an airbag module fixed to a seat frame of the vehicle seat, a first webbing and a second webbing surrounding the airbag module together with the seat frame and guiding the inflating airbag to an airbag outlet on a seat surface, a locked portion provided on a first end part of the first webbing, a fixed portion provided on a second end part of the second webbing, a locking member formed of a member having rigidity and having a fixing portion to which the fixed portion of the second webbing is fixed and a locking portion which hooks and locks the locked portion of the first webbing.

Abstract: The present invention provides a headrest that is low-cost but still provides impact mitigation performance, and a vehicle seat having this headrest. A headrest of a vehicle seat includes: a headrest frame that is formed of at least one plate material and is fixed to a seatback frame of the vehicle seat; a pad that covers the headrest frame; and a skin that covers the pad. A contact section is provided at the lower part of the headrest frame, said lower part being located on the seatback-frame side, and the contact section is located closer to the rear surface of the headrest than the upper part of the headrest frame is, said upper part being located on the opposite side to the seatback-frame side.

Abstract: There is provided a vehicular seat capable of using an air supply fan having a relatively small capacity so that a thickness of the air supply fan does not become one of factors in determining a thickness of a seat in realizing the reduction of the thickness of the seat. A vehicular seat includes: an air supply fan; an air supply chamber which forms a passage for air supplied from the air supply fan; and a urethane pad which sandwiches the air supply chamber and has a plurality of portions in each of which a hole through which air supplied from the air supply chamber passes is formed. The air supply chamber is formed so as to cover in a planar surface shape a region of the urethane pad including the plurality of portions in each of which the hole is formed.

Abstract: A surface skin with which a foamed body is integrally foam-molded and which covers the foamed body includes: a plurality of surface skin members; a first thread passing through at least a part of a needle hole extended through the surface skin members so as to sew the surface skin members together; and a second thread inter-looping or interlacing with the first thread so as to sew the surface skin members together in cooperation with the first thread. The first thread is threaded through an eye of a needle. The second thread is formed by warp weaving or braiding polyester or nylon fiber pieces and is stretchable enough to fill in the needle hole.

Abstract: A vehicle seat on which an occupant of a vehicle is seated, includes: a cover covering a seat frame, a wire harness routed inside the cover, and a flexible wrapping member attached to the seat frame and wrapping a part of the wire harness.

Abstract: To provide a technique that enables the reduction of fatigue of a vehicle occupant at low cost and without an increase in the number of parts. Without preparing a sensor in addition to a posture changing mechanism, the position of a lumbar vertebra or thoracic vertebra of each vehicle occupant is estimated by controlling the operation of the posture changing mechanism. The posture changing mechanism includes: a back side support mechanism; a first motor capable of shifting a position of the back side support mechanism with respect to a vertical direction; and a second motor capable of shifting the position of the back side support member with respect to a front-back direction.