Tachi-s Co., Ltd.

Mitsubishi Jidosha Kogyo Kabushiki Kaisha

Tachi-s Col. Ltd.

Yoshihiro Mizushima

Akira Aoki

Takao Tsutsui

Shingo Kutomi

Takashi Yasui

Takashi Ogino

Mitsuru Fukushima

Toshiya Kuroyanagi

A vehicle seat apparatus in which a seat is rotated around a rotational shaft to the rear of a vehicle in such a manner that a bottom surface of a seat cushion is made to face the inside of a passenger compartment so that the seat can be stowed in a recessed portion. The rotational shaft extends in a transverse direction along a front edge of the recessed portion to be fixed to a vehicle body at ends thereof. A seat cushion and a seat back of the seat are both divided into at least two in a widthwise direction. Respective seats so divided are rotatably supported on the rotational shaft individually.

Vehicle seat apparatus

A structure of seat cushion frame in a vehicle seat, which has a pair of upwardly projected side frames, one of them being disposed at the side of a door of the vehicle, wherein such one of the side frames is formed with a cut-away portion at the rearward are thereof, with a forward side frame being thus defined therein, and wherein an expandable member is extended between the cut-away portion and forward side frame. The expandable member acts to allow vertical flexture of the corresponding lateral bolster portion of seat cushion, after upholstering the seat cushion frame to form the seat cushion, so that a passenger can descend from or climb onto the seat with a comfortable touch.

Structure of seat cushion frame in a vehicle seat

A side support device in a seat back of an automotive seat, which is mounted at one lateral frame section of a seat back frame within the seat back, is of such a structure that a motor and associated transmissions are disposed adjacently along the inward side of that one lateral frame section of seat back frame, and that a drive mechanism is also disposed along the same one lateral frame section of seat back frame for causing a pair of side support frames to be moved inwardly toward and outwardly away from each other. The drive mechanism includes a lead screw and a nut member in threaded engagement therewith, such that both of them are disposed vertically relative to the seat back frame. Thus, the motor, drive mechanism and related elements are located in the seat back at a point free from contact with the body of a passenger on the seat.

Side support device in seat back of an automotive seat

An automotive seat with a seat cushion tilt device, wherein a seat cushion may be tilted forwardly or downwardly by the seat cushion tilt device in relation to a slide rail disposed under the seat cushion, and wherein a shield cover is secured on the slide rail to cover a spacing defined at the backward section of the seat cushion. The shield cover is provided with an auxiliary cover member which serves to cover a clearance which is to be created between the shield cover and the foregoing spacing when the seat cushion is tilted forwardly or backwardly by operation of the seat cushion tilt device, whereby a part of the slide rail and seat cushion tilt device are prevented against exposure through such spacing.

Automotive seat with seat cushion tilt device

A seat cushion frame structure in an automotive seat, wherein the seat cushion frame is formed with forward and backward frame sections, and a U-shaped main frame section disposed between the two frame sections, such that the main frame section may be desirably positioned and welded at its both forward ends to the forward frame section, thereby permitting variation of length of seat cushion frame.

Structure of seat cushion frame in automotive seat

A lumbar support device including a generally L-shaped arm member supported rotatably upon a seat frame and a wire member of a torsion bar type, wherein one end of the arm member is operatively coupled to a drive mechanism and another end thereof is connected to one end of the wire member, wherein another end of wire member is provided with a lumbar support plate. Both arm and wire members are moved, without being projected, so that an unpleasant hard or pressing touch is avoided in the seat.

Lumbar support device

A vehicle seat with a lumbar support device which is so constructed that an independent lumbar support cushion member is defined in a cushion member and a trim cover assembly covering such cushion member includes a lumbar support portion, a part of which is formed separate from the surrounding areas of the trim cove assembly, covering the independent lumbar support cushion member. Thus, the lumbar support section of the seat is easily raised or lowered at an increased range, by operation of the lumbar support device.

Growing community of inventors

Akishima, Japan

Yoshihiro Mizushima