JPS611460U

JPS611460U - Lock mechanism for webbing retractor

Info

Publication number: JPS611460U
Application number: JP8649684U
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: 1984-06-11
Filing date: 1984-06-11
Publication date: 1986-01-07
Also published as: JPH0351247Y2

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

【図面の簡単な説明】[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
はロックプレニ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図はロッ
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図は巻取軸と回転ホイルとの取付状態を示す断面図、
第７図Ａ−Ｅは制限プレートとアクチュエータおよびそ
の関連部品の作動を示す説明図、第８図は本考案の第２
実施例を示す斜視図、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
である。１０・・・フレーム、２０・・・巻取軸、２４，２５・
・・ロツクプレート、２８，３０・・・爪部、３２・・
・内歯ラチェットホイル、３２Ａ，３８，３８Ａ・・・
ロツク歯、４２・・・回転ホイル、４４・・・ねじりコ
イルばね、５０・・・制限プレート、５４．５６・・・
突起、５４Ａ・・・カム斜面、５８・・・加速度感知手
段、６０・・・アクチュエータ、６０Ａ・・・ポール、
６２・・・ピン、６６・・・ボール、７４・・・ラチェ
ット歯、７８・・・制限プレート、８０・・・ばねプレ
ート、８２・・・スクリュウ。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.
is a front view showing the correspondence relationship between the lock prenit and the internal tooth ratchet wheel, FIG. 4 is the operating diagram of FIG. 3, FIG. 5 is an explanatory diagram showing the assembled state of the lock ring and torsion coil spring, and FIG. 6 is a sectional view showing the mounting state of the winding shaft and rotating wheel,
7A to 7E are explanatory diagrams showing the operation of the restriction plate, actuator, and related parts, and FIG. 8 is the second embodiment of the present invention.
FIG. 9 is a perspective view showing a third embodiment of the present invention, and FIG. 10 is a perspective view showing a fourth embodiment of the present invention. 10... Frame, 20... Winding shaft, 24, 25.
...Lock plate, 28, 30...Claw part, 32...
・Internal tooth ratchet foil, 32A, 38, 38A...
Lock tooth, 42... Rotating wheel, 44... Torsion coil spring, 50... Limiting plate, 54.56...
Projection, 54A...Cam slope, 58...Acceleration sensing means, 60...Actuator, 60A...Pole,
62... Pin, 66... Ball, 74... Ratchet tooth, 78... Limiting plate, 80... Spring plate, 82... Screw.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

（１）ウエビング巻取軸のウエビング引出方向回転
に追従するべくロック輪と巻取軸との間へ弾性体が介在
され、このロツク輪に車両緊急時に加速度感知手段によ
って回転抵抗力を受け、巻取軸と共に回転するロック部
材がロック輪の巻取軸に対する回転遅れで駆動されてフ
レームのロック歯とかみ合うウエビング巻取装置用ロッ
ク機構であって、ウエビング巻取軸の回転が摩擦接触手
段を介して伝達される制限部材を設け、この制限部材は
巻取軸のウエビング巻取方向回転時に前記加速度感知手
段によるロック輪への回転抵抗力付与を阻止するこメを
特徴としたウエビング巻取装置用ロック機構。(1) An elastic body is interposed between the lock ring and the take-up shaft in order to follow the rotation of the webbing take-up shaft in the webbing pull-out direction, and in the event of a vehicle emergency, this lock ring receives a rotational resistance force by the acceleration sensing means, and the webbing is unwound. A locking mechanism for a webbing take-up device in which a lock member rotating together with a take-up shaft is driven by a rotation delay of a lock ring with respect to a take-up shaft and engages with lock teeth of a frame, and the webbing take-up shaft rotates through frictional contact means. A webbing retractor is provided with a limiting member for transmitting the transmission to the webbing retractor, the restricting member having a lock that prevents the acceleration sensing means from applying a rotational resistance force to the lock ring when the retracting shaft rotates in the webbing retracting direction. Locking mechanism.

（２）前記加速度感知手段は車両緊急時にアクチュエー
タがロック輪のロック歯とかみ合ってロツク輪に回転抵
抗力を付与する構成であり、制限部材は巻取軸のウエビ
ング巻取方向回転時にアクチュエータをロツク輪から強
制的に離間させることを特徴とした前記実用新案登録請
求の範′囲第１項に記載のウエビング巻取装置用ロック
機構。(2) The acceleration sensing means is configured such that in the event of a vehicle emergency, the actuator engages with the locking teeth of the locking wheel to apply a rotational resistance force to the locking wheel, and the limiting member locks the actuator when the winding shaft rotates in the webbing winding direction. The locking mechanism for a webbing retractor according to claim 1 of the above-mentioned utility model registration claim, characterized in that the locking mechanism is forcibly separated from the ring.

（３）前記制限部材にはカムが設けられ、このカムが前
記アクチュエータのロツク輪方向への移動を規制するこ
とを特徴とした前記実用新案登録請求の範囲第２項に記
載のウエビング巻取装置用ロック機構。(3) The webbing retractor according to claim 2, wherein the limiting member is provided with a cam, and the cam restricts movement of the actuator in the direction of the lock ring. locking mechanism.