Kabushiki Kaisha Tokai Rika Denki Seisakusho

Yuji Suga

Shinichi Okubo

Wataru Yanagawa

Motoki Sugiyama

Takahiro Tanaka

In a webbing retractor, due to a moving member being moved toward an axial direction distal end side, and first teeth and second teeth of a rotating member piercing the moving member, the rotating member is rotated in a take-up direction. Here, at the moving member, a sectional surface area, in a direction orthogonal to an axis, of a small diameter portion that is at an axial direction distal end side is made to be small as compared with a moving member main body that is at an axial direction proximal end side. Therefore, resistance to movement of the moving member can be reduced.

Webbing retractor

A webbing take-up device includes a spool, a lock base that restricts pull-out direction rotation of the spool in a vehicle emergency, and a linear energy absorbing wire that deforms so as to permit pull-out direction rotation of the spool at or above a force limiter load when the lock base has restricted pull-out direction rotation of the spool. The webbing take-up device further includes a housing with which the energy absorbing wire engages along a radial direction inside face of the housing, and a winder section provided at a radial direction inside of the housing. The winder section is capable of rotating together as a unit with the spool, and takes up the energy absorbing wire by being rotated. Moreover, a wire guide and a lever are provided between the winder section and the housing. The wire guide and the lever pinch and deform the energy absorbing wire.

Webbing take-up device

A webbing take-up device includes: a spool that takes up webbing worn by an occupant and is rotated in a pull-out direction due to the webbing being pulled out; a base lock that is provided capable of rotating integrally with the spool and is restricted from rotating in the pull-out direction of the spool in vehicle emergency; a pawl that is rotated together with the spool and that, by being displaced to an engaged position, engages with a winding ring and transmits rotation force of the spool to the winding ring; and a trigger ring that is provided capable of being displaced in a rotation circumferential direction of the spool with respect to the spool and includes a pawl-abut portion, abutting the pawl and displacing the pawl to the engaged position when the spool is rotated in the pull-out direction with respect to the lock section.

A webbing take-up device includes a spool taking up webbing worn by an occupant, that is rotated in a pull-out direction by the webbing being pulled-out; a base lock that is provided capable of rotating integrally with the spool and restricts rotation of the spool in the pull-out direction in vehicle-emergency; a pawl that is rotated together with the spool and, by being displaced, engages with a winding ring and transmits rotation force of the spool to the winding ring, and a trigger ring including a restricting portion that is disposed in a restricting position at which displacement of the pawl is restricted in a state prior to the spool being rotated with respect to the base lock, and is disposed in a permitting position at which displacement of the pawl is permitted when the spool has been rotated in the pull-out direction with respect to the base lock.

Growing community of inventors

Aichi, Japan

Yuji Suga