A mat attachment structure of a seatback includes: a guide wire attached to the mat and provided with a width-direction extending part extending in s width direction of the seatback frame on a tip or root side of the seatback frame; and a holder having a base part which holds the width-direction extending part so as to be rotatable around an axis of the width-direction extending part and an attachment part attached to the seatback frame. When a force exceeding a predetermined value in a direction to separate from the seatback frame is applied from the width-direction extending part to the holder, the force being due to the force from the back of the occupant that the mat receives, the width-direction extending part departs from the base part or the holder departs from the seatback frame, so that the width-direction extending part is separated from the seatback frame.

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.

The invention provides a type of all-terrain vehicle seat installation structure; it includes the cab frame and the seat backrest arranged on the frame; the back mounting side of the seat backrest includes the first mounting part and the second mounting part arranged up and down respectively. The first mounting part includes the upper support frame located at the upper end of the frame; the installation hole is arranged on the upper support frame; the installation pin inserted into the installation hole is extended out of the seat backrest. The second mounting part includes the lower support frame located at the lower end of the frame; the lower end of the seat backrest is provided with the installation buckle mounted on the lower support frame. The top of the seat backrest is limited by the installation pin being inserted into the installation hole; the seat backrest is supported by the bottom installation buckle; the top of the seat backrest is limited by the inserting installation structure of the installation pin and the installation hole to avoid the seat backrest moving up and down on the frame, so the stability of the seat installation structure of the all-terrain vehicle is improved. The invention also provides a type of all-terrain vehicle provided with the seat installation structure of the all-terrain vehicle as described above.

The invention provides a type of all-terrain vehicle seat installation structure; it includes the cab frame and the seat backrest arranged on the frame; the back mounting side of the seat backrest includes the first mounting part and the second mounting part arranged up and down respectively. The first mounting part includes the upper support frame located at the upper end of the frame; the installation hole is arranged on the upper support frame; the installation pin inserted into the installation hole is extended out of the seat backrest. The second mounting part includes the lower support frame located at the lower end of the frame; the lower end of the seat backrest is provided with the installation buckle mounted on the lower support frame. The top of the seat backrest is limited by the installation pin being inserted into the installation hole; the seat backrest is supported by the bottom installation buckle; the top of the seat backrest is limited by the inserting installation structure of the installation pin and the installation hole to avoid the seat backrest moving up and down on the frame, so the stability of the seat installation structure of the all-terrain vehicle is improved. The invention also provides a type of all-terrain vehicle provided with the seat installation structure of the all-terrain vehicle as described above.

A vehicle seat includes: a seat cushion; a seatback that is rotatably connected to a seat rear side of the seat cushion; a headrest that is provided at a seat upper side end portion of the seatback, and that is configured to support a head portion of a vehicle occupant; and a hardness changing section that changes a hardness of a seat front side of the headrest by compressing a pad at an interior of the headrest, in a case in which an angle of inclination of the seatback with respect to the seat cushion is smaller than a predetermined angle, and canceling a compressed state of the pad, in a case in which the angle of inclination is larger than the predetermined angle.

A vehicle seat includes: a seat cushion; a seatback that is rotatably connected to a seat rear side of the seat cushion; a headrest that is provided at a seat upper side end portion of the seatback, and that is configured to support a head portion of a vehicle occupant; and a hardness changing section that changes a hardness of a seat front side of the headrest by compressing a pad at an interior of the headrest, in a case in which an angle of inclination of the seatback with respect to the seat cushion is smaller than a predetermined angle, and canceling a compressed state of the pad, in a case in which the angle of inclination is larger than the predetermined angle.

The present disclosure relates to a seat that may have a support structure and a pad having a support wire attachable to the support structure. A retainer may be provided which is fixed at one end through an opening in the support structure and at the opposite end onto the support wire. The retainer may have a mounting member to fix through the opening and a hook to catch the support wire, the mounting member having a use position and a mounting position that is inclined relative to the use position. The mounting member and the hook may be joined by a spacer bar.

The present disclosure relates to a seat that may have a support structure and a pad having a support wire attachable to the support structure. A retainer may be provided which is fixed at one end through an opening in the support structure and at the opposite end onto the support wire. The retainer may have a mounting member to fix through the opening and a hook to catch the support wire, the mounting member having a use position and a mounting position that is inclined relative to the use position. The mounting member and the hook may be joined by a spacer bar.

A vehicle seat inter-connected tether assembly includes a first tether, a second tether and a vertically configured third tether positioned between the first tether and the second tether fixedly coupled to and connecting the first tether to the second tether. A connector positioned at distal ends of the first tether and the second tether is configured to couple the first tether and the second tether to opposed seat frame members of a vehicle seat frame.

A vehicle seat inter-connected tether assembly includes a first tether, a second tether and a vertically configured third tether positioned between the first tether and the second tether fixedly coupled to and connecting the first tether to the second tether. A connector positioned at distal ends of the first tether and the second tether is configured to couple the first tether and the second tether to opposed seat frame members of a vehicle seat frame.