JPS6137057U

JPS6137057U - Lock mechanism for webbing retractor

Info

Publication number: JPS6137057U
Application number: JP12226784U
Authority: JP
Inventors: 俊雄斎藤; 研二松井
Original assignee: 株式会社東海理化電機製作所
Priority date: 1984-08-09
Filing date: 1984-08-09
Publication date: 1986-03-07
Also published as: JPH0348922Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案に係るロック機構が適用された巻取装置
を示す分解斜視図、第２図は巻取軸を示す側面図、第３
図はロックプレートの内歯ラチェットホイルへの対応関
係を示す正面図、第４図は第３図の作動図、第５図はロ
ツク輪とねじりコイルばねとの組付状態を示す説明図、
第６区は巻取軸と回転オイルとの取付状態を示す断面図
、第７図Ａ及びＢは、本実施例の側面図及びその作動図
、第８図は本考案の第２実施例を示す斜視区、第９図は
本考案の第３実施例を示す斜視図、第１０図は本考案の
第４実施例を示す斜視図、第１１図は本考案の第５実施
例の要部（他の部品は第１実施例と同様）を示す斜視図
である。Fig. 1 is an exploded perspective view showing a winding device to which a locking mechanism according to the present invention is applied, Fig. 2 is a side view showing a winding shaft, and Fig. 3 is a side view showing a winding shaft.
The figure is a front view showing the correspondence relationship between the lock plate and the internal ratchet wheel, FIG. 4 is the operating diagram of FIG. 3, and FIG. 5 is an explanatory diagram showing the assembled state of the lock ring and torsion coil spring.
Section 6 is a cross-sectional view showing the installation state of the winding shaft and rotating oil, FIG. 7 A and B are side views of this embodiment and its operation diagram, and FIG. 9 is a perspective view showing a third embodiment of the present invention, FIG. 10 is a perspective view showing a fourth embodiment of the present invention, and FIG. 11 is a main part of a fifth embodiment of the present invention. (Other parts are the same as in the first embodiment) FIG.

Claims

[Scope of utility model registration request]

(1) A locking mechanism for a webbing retractor in which a pole driven by an acceleration sensing means is engaged with a lock ring connected directly or indirectly to the webbing retractor shaft to stop the rotation of the webbing retractor from the webbing retractor shaft. The rotation of the take-up shaft is transmitted through frictional force and is provided with a limiting member that can be rotated by a predetermined angle, and this limiting member is provided with a restriction member that rotates in the webbing winding direction of the take-up shaft after the pole is engaged with the lock ring. A locking mechanism for a webbing retractor, characterized in that a cam part is formed to separate the pole from the locking ring when the pole is disengaged from the locking ring.

(2) A frictional force applying means is interposed between the limiting member and the webbing take-up shaft, and when the limit member is rotated by the maximum amount in the webbing pull-out direction, the take-up shaft is then rotated to unwind the webbing. Even when the take-up shaft rotates in the webbing winding direction, the length is such that it comes into contact with the pole after rotating by a predetermined angle. The locking mechanism for a webbing retractor according to claim 1 of the above-mentioned utility model registration, characterized in that the locking mechanism corresponds to an angle that only releases the engagement.

(3) A frictional force applying means is interposed between the limiting member and the locking ring to receive the rotation of the winding shaft via the locking ring, and when the limiting member is rotated by the maximum amount in the webbing drawing direction, after that - When the take-up shaft rotates in the webbing take-up direction, the lock ring rotates by a predetermined angle with a rotation delay and simultaneously rotates to immediately separate the pole from the lock ring. A locking mechanism for a webbing retractor according to claim (1) of the utility model registration.