Tachi-s Co., Ltd.

Mie University

Takumi Yamakawa

Kazuyoshi Arata

Takayuki Nosaka

Takashi Yokoyama

Tsutomu Fujikake

Ryojun Ikeura

Soichiro Hayakawa

Masami Yoshida

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. A position of a lumbar vertebra of the vehicle occupant is estimated by: while changing the vertical position of the back side support mechanism by means of the first motor, changing a forward position of the back side support mechanism at each of the different vertical positions thereof by means of the second motor so as to obtain a turnover number value of the second motor achieving a desired resistance; and comparing the turnover number values of the second motor achieving the desired resistance. A position of the thoracic vertebra is determined by calculation based on the position of the lumbar vertebra. The position of the posture changing mechanism is set based on the results of estimation of the individual positions. Thus, a fatigue reduction effect is provided on the vehicle occupant by utilizing the posture changing mechanism.

Seat for vehicle

A vehicle seat includes: a chamber in which at least a seat-front-surface side is covered with a pad and which circulates the air blown from a front surface of a seat through the pad; a fan configured to send air into the chamber; and a support body which supports the chamber so as to be able to sink in an acting direction of a load applied to the surface of the seat. The chamber includes a first region and a second region, and the first region and the second region are configured to allow subduction of the chamber independently of each other.

Vehicle seat

The present invention relates to a vehicle sheet with a seat back which is provided with a urethane pad covered with a trim cover, and a pressing unit on the reverse side of the urethane pad covered with the trim cover, the pressing unit being formed with a shaft extending laterally and a pair of pressure portions arranged in the vertical direction with respect to the shaft to support both the upper and lower sides of the urethane pad by detecting the intermediate position of turning movement of the pressing unit by means of a turning movement detection unit and stopping the turning movement of the pressing unit, or is configured to press forward the upper side of the urethane pad using the upper pressure portion or the lower side of the urethane pad using the lower pressure portion by turning the laterally-extending shaft of the pressing unit.

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.

A seat cushion pad and a seat which enable reduction of a cost and improvement of use feeling are provided. The cushion pad () fixed in a seat frame () of the seat () includes a cushion pad body (), and an air cell () which can be expanded and contracted by supplied/exhausted air. The air cell () is provided integrally with the cushion pad body () and is held by the cushion pad body ().

Seat cushion pad and seat

This seat for vehicles is provided with: a seat cushion frame that forms the skeleton of the seat part of the seat; a cushion material disposed on the seat cushion frame; and a trim cover that covers the cushion material. The seat cushion frame has a cushion side frame that supports the lateral lower section of the seat part of the seat, and a trim wire that is fixed to the cushion side frame. The ends of the trim cover have a pocket part sewn in a pocket shape, and are configured such that the trim cover is fixed by inserting the trim wire into the pocket part.

Growing community of inventors

Tokyo, Japan

Takumi Yamakawa