JPS63154367U

JPS63154367U -

Info

Publication number: JPS63154367U
Application number: JP4778087U
Authority: JP
Priority date: 1987-03-31
Filing date: 1987-03-31
Publication date: 1988-10-11

Description

[Brief explanation of the drawing]

第１図は本考案に係るウエビング巻取装置の実
施例を示す分解斜視図、第２図及び第３図は実施
例装置の巻取軸ロツク機構の作動を説明する側面
図、第４図乃至第７図は実施例の作動を説明する
概略側面図、第８図は第２の揺動角制限手段の他
の実施例を示す側面図である。１０……ウエビング巻取装置、１４……巻取軸
、１８……全舞ばね、３２……ロツクプレート、
３８……内歯ラチエツトホイル、４２……ラチエ
ツトホイル（回転輪）、９８……ウエビング、１
００……レバー（槓杆）、１０２……ウエビング
巻径感知部、（第１の揺動角制限手段）、１０６
……圧縮コイルスプリング、１０８，１１８……
フリクシヨンスプリング（第２の揺動角制限手段
）、１０８Ａ……挟持部、１０８Ｂ……第１突出
部、１０８Ｃ……第２突出部、１１０，１１２…
…ピン、１２０……アーム。 FIG. 1 is an exploded perspective view showing an embodiment of the webbing retractor according to the present invention, FIGS. 2 and 3 are side views illustrating the operation of the take-up shaft locking mechanism of the embodiment device, and FIGS. FIG. 7 is a schematic side view illustrating the operation of the embodiment, and FIG. 8 is a side view showing another embodiment of the second swing angle limiting means. 10... Webbing winding device, 14... Winding shaft, 18... Full spring, 32... Lock plate,
38... Internal tooth ratchet foil, 42... Ratchet foil (rotating wheel), 98... Webbing, 1
00... Lever (ramrod), 102... Webbing winding diameter sensing section, (first swing angle limiting means), 106
...Compression coil spring, 108,118...
Friction spring (second swing angle limiting means), 108A... holding part, 108B... first protrusion, 108C... second protrusion, 110, 112...
...Pin, 120...Arm.

Claims

[Scope of utility model registration request]

A take-up shaft that winds up the webbing with a biasing force, a lock mechanism that is actuated to prevent the take-up shaft from rotating in the webbing pulling-out direction, and a locking mechanism that is linked to the lock mechanism and can rotate together with the take-up shaft in the webbing pulling-out direction. The rotating wheel rotates relative to the take-up shaft, which is prevented from rotating in the direction of pulling out the webbing, and operates the lock mechanism. There is a lever that prevents the webbing from rotating in the direction of pulling out the webbing, and a lever that swings together with the lever until it comes into contact with the webbing that is being wound around the take-up shaft and the winding diameter of the webbing falls below a predetermined value. a first swing angle limiting means that limits the swing angle and prevents engagement with the rotating ring; and a first swing angle limiting means that limits the swing angle and prevents engagement with the rotating ring; When the lever is at its swing limit, the swing angle of the lever that is no longer limited by the first swing angle limiting means is limited to prevent engagement with the rotating ring, and the direction of webbing pulling out of the take-up shaft is restricted. Following rotation, the rotation in the webbing take-up direction causes the ram to be swung from the swing limit in the webbing pull-out direction to the webbing take-up direction, allowing the ram to engage with the rotating ring, and further swung in the webbing take-up direction, thereby causing the ram to move in the webbing take-up direction. A webbing retractor comprising: second swing angle limiting means for releasing the engagement state from the rotating wheel.