Kabushiki Kaisha Tokai Rika Denki Seisakusho

Toyota Jidosha Kabushiki Kaisha

Nippon Soken, Inc.

Toyota Jidosha Kogyo Kabushiki Kaisha

Akinori Fujiwara

Yuji Nishimura

Teruhiko Kawaguchi

Hiroshi Tsuge

Toshiaki Shimogawa

Noritada Yoshitsugu

Kazuo Sakakibara

Shinji Mori

Satosi Kuwakado

Chikao Nagasaka

Tatsushi Kubota

Takashi Kawaharazaki

Hiroki Iwasa

Tsutomu Muraoka

Motonobu Sugiura

Shigeyasu Kanada

Masahiro Iwatsuki

Hiromi Tajima

A child passenger securing apparatus for use in a vehicle includes a body which has a seat portion and a backrest portion and which defines a hollow portion extending from the seat portion to the backrest portion. A portion of a webbing unwound from a retractor secured within the hollow portion of the seat portion is passed through the hollow portion and led out from a lead-out portion provided in the backrest portion so that a child passenger is fastened by this portion of the webbing. Accordingly, the webbing is prevented from contacting a seat for an adult passenger on which the apparatus is mounted, so that the webbing moves smoothly when it is unwound and rewound.

Child passenger securing apparatus for use in vehicle

A child passenger securing apparatus includes an apparatus body which is provided with a child passenger restraining webbing. One end of the webbing is led into the inside of the body, passed through a through-hole provided in a fixed plate, passed over an engaging portion of a lock plate and then turned up in such a manner that its direction is reversed, and is then passed through the through-hole again in the opposite direction. Accordingly, the fixed and lock plates are disposed below the seat portion of the apparatus body, and this allows the surface of the seat portion to be flattened. Since the lock plate is slidable along the fixed plate, the tension which acts on the webbing causes the lock plate to slide relative to the fixed plate so as to clamp an intermediate portion of the webbing, and the webbing tension is thereby reliably born.

Child passenger securing apparatus

A controller for automatically effecting disengagement of a buckle device includes a moving means which moves a lock plate engaged with a tongue plate. When a predetermined period of time has elapsed after the acceleration acting on the vehicle exceeds a predetermined value, the controller controls the moving means such that the tongue plate and the lock plate are automatically disengaged from each other. It is possible to automatically disengage the tongue plate from the buckle device in an emergency situation, such as collision or overturn, of the vehicle.

Controller for automatically effecting disengagement of buckle device

A child restraining device is provided with a reclining mechanism including a supporting member for supporting a child receiving vessel mounted rotatably in a step manner thereon through crank means. Accordingly, the vessel can be reclined readily in the step manner.

Child restraining device

In a webbing tension device adapted for use in a webbing retractor for a vehicle in which a takeup shaft retracting an occupant restraining webbing thereon is biased in a direction of a webbing retraction by small resilient means and in an emergency situation of the vehicle a biasing force of large resilient means is transmitted to the takeup shaft through one clutch means so that the takeup shaft is biased in the direction of the webbing retraction by the large resilient means, another clutch means is disposed between the takeup shaft and the large resilient means. Accordingly, when the webbing is fully retracted on the takeup shaft after the vehicle is released from the emergency situation, the another clutch means is put in its connected situation, and when the webbing is unwound from the takeup shaft after it is retracted fully on the takeup shaft, an unwinding rotation of the takeup shaft is transmitted to the large resilient means, so that the large resilient means is wound up.

Webbing tension device

An emergency locking retractor (ELR) for a safety seat belt system provided with a slack-take-up spring operable to instantaneously bias a belt retracting reel to take-up a slack in the seat belt in an emergency situation of the vehicle. The retractor is further provided with a rewinding mechanism including an electric motor for rewinding the slack-take-up spring after the spring energy thereof has been released. Switching circuits for automatically energizing the electric motor are also possible.

Seat belt retractor with powered rewinding arrangement for slack-take-up

In a webbing tension device adapted for use in a webbing retractor wherein clutch means is provided for putting a webbing takeup shaft and an operation wheel biased by resilient means in a connected situation in an emergency situation of an vehicle and for putting them in a disconnected situation in an ordinary running situation of the vehicle, the clutch means is provided with lever means opposed to a gear wheel fixed to the takeup shaft and the lever means is caused to abut on the operation wheel when the lever means is latched to the gear wheel in the emergency situation of the vehicle, whereby a compression force acting upon the lever means in the emergency situation is supplementally sustained. Accordingly, the lever means is reinforced without using large-sized clutch means.

In a webbing tension device adapted for use in a webbing retractor, winding means includes a worm rotated by an occupant and a worm wheel to which a rotative operation force to the worm is subjected to reduction to be transmitted, and a rotation force of the worm wheel is transmitted through clutch means to large resilient means biasing a webbing takeup shaft in a direction of a webbing retraction. Accordingly, after a vehicle is released from an emergency situation, the worm can be rotated against a biasing force of the large resilient means so that the large resilient means is wound up.

In a webbing tension device adapted for use in a seatbelt system for protecting an occupant in an emergency situation of a vehicle, comprising a wheel supported by a webbing takeup shaft, a pawl latched to the wheel to prevent the wheel from rotating and trigger means detecting an acceleration and deceleration acting upon the vehicle in the emergency situation thereof to release the pawl from the wheel, cam means is caused to abut on the pawl and the trigger means. Accordingly, the wheel is surely prevented from the rotation in an ordinary running situation of the vehicle, and in the emergency situation of the vehicle the trigger means moves the cam means to release the pawl reliably from the wheel. In the present webbing tension device, thus, latching and releasing performances between the pawl and the wheel are improved.

This webbing winding force restraining device contemplates that when the webbing is fastened about an occupant, rotation of a takeup shaft is controlled through the action of a holding mechanism so as to restrain a winding force not to act on the takeup shaft, a control plate is provided between a lock ring and a holding mechanism for controlling rotation of this lock ring so as to make proper the positions of actuating and releasing a winding force restraining action, and a memory device for controlling rotation of the takeup shaft in a direction of winding the webbing relative to the lock ring at a predetermined position is provided between the lock ring and the takeup shaft, whereby, even when the occupant changes the driving posture, the winding force restraining state is not released.

Webbing winding force restraining device

A lock ring journalled on a takeup shaft for winding an occupant restraining webbing is adapted to guide a plurality of lock plates provided around the takeup shaft in directions opposite to each other, and an engageable device subjected to a turning force of the takeup shaft in an emergency situation of a vehicle drives the lock plates in directions opposite to each other due to a lag in rotation of the lock ring from the takeup shaft and pushes the lock plates against an internally toothed ratchet wheel to thereby stop the takeup shaft from rotating in the webbing unwinding direction.

Webbing retractor

A buckle for safety belt comprising means for releasably locking in locked position a tongue plate inserted into the buckle body through an insertion opening, a slider disposed in the buckle body to be moved against the force of a spring by being urged by the inserted tongue plate, a contact pin extending through the slider to protrude from the opposite side faces thereof, and a pair of stationary contact strips disposed on opposite sides of the slider in the buckle body to be simultaneously engaged by or disengaged from the contact pin with the sliding movement of the slider.

Growing community of inventors

Aichi, Japan

Akinori Fujiwara