A radio wave transmitting/receiving device is placed in a vehicle in such a way that the device is near the back of the seated person, and no discomfort is caused to the back of the seated person. The vehicle seat includes a seat cushion and a seatback connected to a rear part of the seat cushion. The seatback comprises a seatback frame including a left and a right side frame portion extending vertically, and an upper frame portion extending laterally between upper ends of the side frame portions, a pressure receiving member consisting of a plate member configured to support a back of a seated person and provided with a radio wave transmissive property, and supported by the seatback frame via an elastic member, and a radio wave transmitting/receiving device supported on a back surface of the pressure receiving member to irradiate radio wave to a seated person and receive radio wave reflected by the seated person.

A seat system for a vehicle including a flexible seatback structure and an adjustment device coupled thereto. The adjustment device is configured to alter a contour of a seating surface of the seatback structure by causing at least a portion of the seatback structure to move toward or away from the occupant of the seat system.

A method of assembling a vehicle seat is provided, comprising: providing a seat back frame; forwardly movably connecting a headrest for supporting a head of a seat occupant to the seat back frame; mounting a rear-end collision detector to the seat back frame at a position behind the seat occupant, operatively connecting the rear-end collision detector to the headrest; disposing a link member at a position lateral to the rear-end collision detector; forming a front extending portion that inwardly extends in a right-to-left direction at a front end of a lateral face of the side frame; and forming a rear extending portion that inwardly extends in the right-to-left direction; wherein a protruding portion is formed from a portion of the lateral face of the side frame that faces at least the part of the bracket, the link support shaft being disposed at a same height as the protruding portion.

The present invention relates to a spine orienting device for integration into a variety of types of seats, for example, automotive seats or office type seating, in order to properly position the sacrum of the individual using the seat, which in turn will properly pivot the pelvis to assist in maintaining the spine in equilibrium.

The object of the invention is to provide a vehicle seat which can improve degree of freedom in the design of the vehicle seat. A vehicle seat with a seat cushion and a seat back includes: right and left side frames 20 constituting right and left frames of the seat back; a pressure-receiving member 40 disposed between the right and left side frames 20 and configured to receive a load from an occupant; and a driving mechanism 50 disposed at each of right and left sides of the pressure-receiving member 40 and configured to cause a right end portion or a left end portion of the pressure-receiving member 40 to move from an initial position to an advanced position that is located frontward of the initial position or to move from the advanced position to the initial position, wherein the driving mechanism 50 includes a linkage (drive link member 100 and contact link member 200) configured to be connected to the pressure-receiving member 40 and a driving source 52 configured to actuate the linkage, and wherein the linkage is configured to operate when a load equal to or greater than a predetermined amount is input from the occupant to the pressure-receiving member 40 to cause the pressure-receiving member 40 to move to a backward position that is located rearward of the initial position.

A vehicle seat is provided with a seat cushion and a seat back, the seat back includes: left and right side members extending up and down; a lower cross member extending laterally and joined to the left and right side members, a cross member extending laterally above the lower cross member and joined to the left and right side members; at least one wire member extending up and down and joined to the lower cross member and the cross member; and at least one shoulder support member supported on an upper portion of the wire member. The shoulder support member includes: a first plate part facing in a front-rear direction and joined to the upper portion of the wire member; and a second plate part facing in the front-rear direction and connected to the first plate part via a flexible part.

A coupling unit for connecting a support structure to an elongated side member comprises a body and a recess. The recess is configured to receive a wire member of the support structure. The coupling unit is configured to be connected to the elongated side member by a snap fit. The elongated side member may be part of a frame of a seat.

A vehicle seat provided with a seat cushion and a seat back, wherein the seat back is provided with: a urethane pad in which the surface is covered by a trim cover; and a pressure means in which a laterally extending shaft and a pair of pressing parts in the vertical direction relative to the shaft are formed on the reverse side of the urethane pad toward the side covered by the trim cover, and a configuration is adopted such that the shaft extending in the lateral direction of the pressure means rotates or swings, thereby causing the upper-side pressing part among the upper and lower pair of pressing parts to press the upper side of the urethane pad forward and the lower-side pressing part to press the lower side of the urethane pad forward.

The present disclosure describes a seat frame including a waist portion supporting member having a smaller size while stably supporting a waist portion of an occupant. A vehicle seat frame serving as a frame for a vehicle seat includes a seat cushion frame forming a frame of a sitting part of the vehicle seat, a seatback frame forming a frame of a backrest part of the vehicle seat, and a waist portion supporting member coupled to a lower frame which is included in the seatback frame. The waist portion supporting member has a coupling region extending in the seat width direction, the coupling region being coupled to the lower frame, and a waist portion supporting region extending from the coupling region toward the seat cushion frame and supporting a waist portion of an occupant. The waist portion supporting region is longer in the seat width direction than the coupling region.

The present disclosure describes a seat frame including a waist portion supporting member having a smaller size while stably supporting a waist portion of an occupant. A vehicle seat frame serving as a frame for a vehicle seat includes a seat cushion frame forming a frame of a sitting part of the vehicle seat, a seatback frame forming a frame of a backrest part of the vehicle seat, and a waist portion supporting member coupled to a lower frame which is included in the seatback frame. The waist portion supporting member has a coupling region extending in the seat width direction, the coupling region being coupled to the lower frame, and a waist portion supporting region extending from the coupling region toward the seat cushion frame and supporting a waist portion of an occupant. The waist portion supporting region is longer in the seat width direction than the coupling region.