Webbing retractor device

Patent metadata

Field	Value
Publication number	US-2016347274-A1
Application number	US-201615163238-A
Country	US
Kind code	A1
Filing date	May 24, 2016
Priority date	May 29, 2015
Publication date	Dec 1, 2016
Grant date	—

Abstract

In a webbing retractor device, a compression coil spring is suspended between an engagement frame of a V-gear and an engagement surface of a locking base. As a result of the engagement frame being engaged with from an exposed portion side by the compression coil spring that is being held in a holding groove of the locking base so as to be exposed to the exposed portion side, the compression coil spring is suspended between the V-gear and the locking base. Because of this, the compression coil spring can be easily suspended between the V-gear and the locking base.

First claim

What is claimed is:

1 . A webbing retractor device comprising:
a take-up shaft onto which a webbing that is worn by a vehicle occupant is wound, and that is rotated in a pull-out direction as a result of the webbing being pulled out; a rotating body that is rotatably mounted at the take-up shaft; an urging component that, as a result of being suspended between the take-up shaft and the rotating body, urges the rotating body in the pull-out direction relative to the take-up shaft so that the rotating body is able to rotate in conjunction with the rotation of the take-up shaft, and at which, as a result of the take-up shaft being rotated in the pull-out direction relative to the rotating body in resistance to the urging force, the rotation of the take-up shaft in the pull-out direction is limited; a holding portion that is provided at one of the take-up shaft or the rotating body, and that, prior to the rotating body being mounted at the take-up shaft, is able to hold the urging component such that it is exposed to an outer side in a longitudinal direction; and an engagement portion that is provided at the other one of the take-up shaft or the rotating body, and that, as a result of being engaged with from the outer side in the longitudinal direction by the urging component that is being held at the holding portion, enables the urging component to be suspended between the take-up shaft and the rotating body.

2 . The webbing retractor device according to claim 1 , wherein the holding portion is able to hold the urging component in a state of natural length in the longitudinal direction.

3 . The webbing retractor device according to claim 1 , wherein the holding portion is able to hold the urging component in a compressed state in the longitudinal direction.

4 . The webbing retractor device according to claim 1 , wherein the urging component is inserted into the holding portion, and an inclined slope is provided inside the holding portion such that the urging component is exposed on the outer side in the longitudinal direction.

5 . The webbing retractor device according to claim 1 , wherein the holding portion is able to hold the urging component in a curved state in the longitudinal direction.

6 . The webbing retractor device according to claim 1 , wherein, when the holding portion is provided at the take-up shaft, the holding portion exposes the urging component on the pull-out direction side, and when the holding portion is provided at the rotating body, the holding portion exposes the urging component on the opposite side from the pull-out direction.

7 . The webbing retractor device according to claim 1 , wherein the urging component is able to be held at the holding portion between a locking surface and an exposed portion, and the exposed portion exposes the urging component on the outer side in the longitudinal direction.

8 . The webbing retractor device according to claim 7 , wherein at least one of the locking surface or the exposed portion is provided in the holding portion.

9 . The webbing retractor device according to claim 7 , wherein at least one of the locking surface or the exposed portion is provided so as to protrude outwards.

10 . The webbing retractor device according to claim 7 , wherein a step surface is provided atd at a portion of the exposed portion that is located at the holding portion bottom surface side thereof.

Assignees

• Kk Tokai-Rika-Denki-Seisakusho

Inventors

• Fukuta Kenji

Classifications

• B60R22/34 Primary

  Belt retractors, e.g. reels (anchoring devices {, e.g. guide loops} , with means to tension the belt in an emergency B60R22/195) · CPC title

• B60R22/38

  responsive only to belt movement · CPC title

• B60R22/405 Primary

  responsive to belt movement and vehicle movement · CPC title

• B60Y2400/304

  Acceleration sensors · CPC title

• B60R22/36

  self-locking in an emergency ({B60R22/3405} , B60R22/343 take precedence) · CPC title