Kabushiki Kaisha Tokai Rika Denki Seisakusho

Yusuke Hirokawa

Tomonori Nagata

Hiroaki Yamazoe

Masaru Ukita

Shinichi Okubo

Katsuki Asagiri

Yasutaka Watanabe

Keiichi Kato

Yuki Watanabe

Hiroaki Yamazohe

In an anchor device, a communication hole in which a webbing pass-through portion and a pin insertion portion communicate with each other is provided at a plate, a webbing passed through the webbing pass-through portion is coupled to the plate, and a mounting pin is inserted into the pin insertion portion. Here, a narrowing portion of the plate narrows the width of communication between the webbing pass-through portion and the pin insertion portion. For this reason, the mounting pin can be inhibited from contacting the webbing when the mounting pin is inserted into the pin insertion portion.

Anchor device

A pretensioner comprising a gas generating unit; a pretensioner body to whose inside the gas is supplied; a spool driving member disposed inside the pretensioner body and causing a spool to rotate to retract webbing onto the spool; a gas flow rate adjusting portion disposed in the spool driving member and whose inner peripheral shape is set in accordance with a flow rate of the gas to be passed through the gas flow rate adjusting portion; and a filter unit having a vent portion that is communicated with a space between the gas generating unit and the spool driving member and is also communicated with the gas flow rate adjusting portion. The open shape of the gas flow rate adjusting portion has a portion that does not coincide in a plan view with the open shape of the vent portion, and the overall open area of the vent portion is set larger than the open area of the gas flow rate adjusting portion.

Pretensioner

In a webbing retractor, the center of a rack and rack-teeth in an axial direction of a pinion is placed on the opposite side of a leg plate side with respect to the central axis of a cylinder. The piston is acted upon by a tilting-force toward the leg plate side from the pinion. A stop portion of an upper stay is placed on another leg plate side of the leg plate. Even when the piston is acted upon by the tilting force toward the leg plate side from the pinion, the stop portion can stop the movement of the leg plate toward the other leg plate side, and tilting of the piston and the cylinder toward the leg plate side can be suppressed. Moreover, the need to increase the strength of a frame and so forth can be eliminated, so the webbing retractor can be made compact and lightweight.

Webbing retractor

A webbing take-up device that can regulate displacement of a held part such as clutch while suppressing or preventing a drop in the assembility of the held part such as clutch. A projection is formed on a bridge portion in a wall portion on the opposite side of a holding portion side. When a cover plate is attached to a frame, a base portion of the cover plate contacts a distal end of the wall portion, but at the portion where the projection is formed, the based portion presses the projection and bends the bridge portion. By the bridge portion bending, a touching surface of the holding portion contacts a base portion of a clutch plate and regulates displacement of the clutch plate. Moreover, in a state where the bridge portion is not bending, a clearance is formed between the touching surface and the base portion when the clutch plate is disposed, so the clutch plate can be also be easily attached.

Growing community of inventors

Aichi-ken, Japan

Yusuke Hirokawa