JPH02128669U

JPH02128669U -

Info

Publication number: JPH02128669U
Application number: JP3889789U
Authority: JP
Priority date: 1989-03-31
Filing date: 1989-03-31
Publication date: 1990-10-23

Description

[Brief explanation of drawings]

第１図は本考案に実施例に係るウエビング巻取
装置の分解斜視図、第２図は実施例のウエビング
巻取装置が適用されたオートマチツクシートベル
ト装置の概略全体側面図、第３図はロツク機構の
一部を示す断面図、第４図は加速度センサの正面
図、第５図はスプールレリーズレバーの取付状態
を示す正面図、第６図及び第７図はカムプレート
とロツクバーとの関係を示す概略側面図である。１０，２６……巻取装置、１６……ウエビング
、３２……巻取軸、４８……メインギヤ、４８Ａ
……爪部、５０……ロツク爪、５２……ロツクバ
ー、５６……線ばね、５８……インナギヤホイー
ル、５８Ｂ……凹凸部、６０……カムプレート、
６０Ａ……カム部、６２……ドライブデイスク、
６３……フリクシヨンスプリング、６３Ａ……突
部、６８……ポール、７４……ロツク輪、７６…
…スリツプスプリング、７８……加速度センサ。 Fig. 1 is an exploded perspective view of a webbing retractor according to an embodiment of the present invention, Fig. 2 is a schematic overall side view of an automatic seat belt device to which the webbing retractor of the embodiment is applied, and Fig. 3 is an exploded perspective view of a webbing retractor according to an embodiment of the present invention. 4 is a front view of the acceleration sensor, 5 is a front view showing how the spool release lever is installed, and 6 and 7 are the relationship between the cam plate and the lock bar. FIG. 10, 26... Winding device, 16... Webbing, 32... Winding shaft, 48... Main gear, 48A
...Claw part, 50 ... Lock claw, 52 ... Lock bar, 56 ... Wire spring, 58 ... Inner gear wheel, 58B ... Uneven part, 60 ... Cam plate,
60A...cam section, 62...drive disk,
63...Friction spring, 63A...Protrusion, 68...Pole, 74...Lock ring, 76...
...Slip spring, 78...Acceleration sensor.

Claims

[Claim for Utility Model Registration] A ratchet wheel coaxially fixed to the webbing take-up shaft, a lock pawl that engages with the ratchet wheel to prevent the webbing take-up shaft from rotating in the webbing pull-out direction, and the lock pawl is a pawl. A lock spring that always urges the lock pawl in the direction of meshing with the wheel, and a lock spring that is arranged coaxially with the webbing take-up shaft and capable of relative rotation, and when the engagement with the lock pawl is released, the lock pawl is released. The cam plate has a cam part formed on a part of its outer periphery that enables engagement with the ratchet wheel, and is arranged coaxially with the webbing take-up shaft and rotatable relative to the webbing take-up shaft. The inner gear wheel is provided with a protrusion that fits into the unevenness arranged in a row on the inner gear wheel. A friction spring is used to rotate the inner gear wheel together with the inner gear wheel, an acceleration sensor is activated to sense the emergency state of the vehicle, and the webbing winding mechanism normally rotates to follow the rotation of the webbing take-up shaft and is activated by the acceleration sensor. A differential wheel that causes a rotation delay with respect to the take-up shaft, and a differential wheel that operates due to the rotation delay of the differential wheel, connects the webbing take-up shaft and the inner gear wheel, and moves the inner gear wheel in the webbing pulling direction of the webbing take-up shaft. A webbing take-up device comprising: interlocking means for rotating following the rotation of the webbing;