Tachi-s Co., Ltd.

Tachikawa Spring Co., Ltd.

Masatatsu Kanai

Shigeru Kanai

Hiroshi Suzuki

Muneharu Urai

Seishiro Saitoh

Yoji Nishizawa

An emergency locking device for a vehicle seat of the type wherein one lateral frame section of seat back frame is rotatably connected to a seat cushion frame, while another lateral frame section of seat back frame is connected thereto via one reclining device, the emergency locking device basically comprising an outwardly toothed lock element and an inwardly toothed lock element, which are provided at such one lateral frame section of seat back frame, with such an arrangement that a displacement of the seat back frame or a slight deformation of same, which is caused by a great load, will quickly bring one of the outwardly and inwardly toothed lock elements to engagement with another of them, to thereby lock that one lateral frame section in question against further serious deformation. The locking device is thus simplified in structure and light in weight.

Emergency locking device for vehicle seat

A slide rail device for a vehicle seat adapted for adjustment of fore-and-aft positions of the seat, comprising an upper rail fixed to the seat and a lower rail slidably fitted to the upper rail, with one end of a seat belt being secured to the upper rail, in which the lower rail encloses the upper rail, with such an arrangement that an upper inverted-U-shaped portion of the lower rail is disposed above a substantially U-shaped shoulder portion of the upper rail, a lateral wall portion of the lower rail is inclined in conformity with a direction of an upward pulling force exerted via the seat belt upon the upper rail, and the shoulder portion of the upper rail is so formed as to accommodate the end of the upper inverted-U-shaped portion of the lower rail, to thereby prevent the separation of the upper rail, from the lower rail.

Slide rail device for vehicle seat

A base bracket is fixed to a driven shaft and a fixed gear, a lock gear rotatably supported by the base bracket and engageable with the fixed gear, a guide bracket rotatably supported by the base bracket, a handle slidably supported by the base bracket, a member for coupling the guide bracket to the lock gear and a member fixed to the handle and for rotating the guide bracket when the handle is slid relative to the base bracket, wherein the handle is slidably extended most outwardly from the base bracket, the guide bracket is rotated by the rotating member relative to the base bracket and the lock gear is also rotated through the coupling member so that the engagement between the lock gear and the fixed gear is released whereby the base bracket and hence the shaft can be rotatable by the handle.

Rotation adjusting apparatus

An adjustment/engagement device applicable to a thigh support device, a head-rest height adjustment device and the like in a vehicle seat is disclosed. In this adjustment/engagement device, a stopper bracket having a plurality of engagement grooves engageable in only one direction and provided at their both ends with engagement pieces is provided in one of a fixed-side member and a movable-side member in a movable adjustment portion of the vehicle seat, while a lock bracket engageable into the front-end-side engagement groove of the stopper bracket and movable in a separating direction after abutment against the front-end-side engagement piece of the stopper bracket as well as a lock-off bracket rotatable when abutted against the rear-end-side engagement piece of the stopper bracket are provided in the other, whereby the position of the movable-side member can be adjusted by directly operating the movable-side member itself.

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Akishima, Japan

Masatatsu Kanai