JPS6271068U

JPS6271068U -

Info

Publication number: JPS6271068U
Application number: JP16347885U
Authority: JP
Priority date: 1985-10-24
Filing date: 1985-10-24
Publication date: 1987-05-06

Description

[Brief explanation of the drawing]

第１図は本実施例に係る巻取装置の分解斜視図
、第２図は第１図の線矢視分解斜視図、第３図
及び第４図はロツク手段の作動状態を示す正面図
、第５図は慣性板と巻取軸との連結状態を示す正
面図、第６図は第１図の線矢視正面図、第７図
は第１図の線矢視正面図、第８図はピンとカム
溝の相対移動を示す説明図である。２０……巻取軸、２３……ウエビング、２４，
２５……ロツクプレート、３２……内歯ラチエツ
トホイル、３８……ロツク輪、４２……ロータ、
４４……ねじりコイルばね、５４……ポールレバ
ー、５６……爪、５８……突起部、６０……ピン
、６２……作動板、６４……カム溝。 FIG. 1 is an exploded perspective view of the winding device according to this embodiment, FIG. 2 is an exploded perspective view taken along the line in FIG. 1, and FIGS. 3 and 4 are front views showing the operating state of the locking means. FIG. 5 is a front view showing the state of connection between the inertia plate and the winding shaft, FIG. 6 is a front view taken along the line in FIG. 1, FIG. 7 is a front view taken along the line in FIG. 1, and FIG. FIG. 2 is an explanatory diagram showing relative movement between a pin and a cam groove. 20... Winding shaft, 23... Webbing, 24,
25...Lock plate, 32...Internal tooth ratchet foil, 38...Lock ring, 42...Rotor,
44...Torsion coil spring, 54...Pole lever, 56...Claw, 58...Protrusion, 60...Pin, 62...Operating plate, 64...Cam groove.

Claims

[Scope of utility model registration request]

Used in a lock mechanism for a webbing retractor that can stop the rotation of the take-up shaft in the webbing pull-out direction by causing a rotation delay in the inertia plate in response to the sudden pull-out of the webbing, and using this delay in the inertia plate to activate the locking means. a rotor that rotates together with the winding shaft; a biasing means that is attached between the rotor and the inertia plate and causes the inertia plate to follow the rotation; a cam groove provided on the actuation plate and partially bent toward the rotation center of the actuation plate; a pin inserted into the cam groove on one side; and a protrusion provided on the inertia plate on the other side. a pawl lever having a pawl corresponding to the part, the pin being moved to the bent part of the cam groove near when the webbing is fully wound, and the pawl engaging with the protrusion to prevent a delay in rotation of the inertia plate; A webbing take-up device lock mechanism.