JPH0437064U

JPH0437064U -

Info

Publication number: JPH0437064U
Application number: JP7935690U
Authority: JP
Priority date: 1990-07-26
Filing date: 1990-07-26
Publication date: 1992-03-27

Description

[Brief explanation of the drawing]

第１図は本考案の実施例に係るプリロード装置
及びウエビング巻取装置を示す分解斜視図、第２
図は第１図に示されるプリロード装置及びウエビ
ング巻取装置の一部断面図、第３図は第１図に示
されたスライドリング及びクラツチ部を矢印線
方向から見た矢視図、第４図は第１図に示された
スライドリングの放射状歯がクラツチ部の放射状
歯に噛み合つた状態を示す矢印線方向から見た
矢視図、第５図は本考案の第２実施例に係るプリ
ロード装置及びウエビング巻取装置を示す分解斜
視図、第６図は本考案の第３実施例に係るプリロ
ード装置及びウエビング巻取装置を示す一部断面
図、第７図は本考案の第４実施例に係るプリロー
ド装置及びウエビング巻取装置を示す一部断面図
である。１０……プリロード装置、１２……ウエビング
巻取装置、２６……巻取軸、３４……ウエビング
（乗員拘束用ウエビング）、５６……案内ピン（
案内手段）、６０……連結軸、６２……クラツチ
部、６６……放射状歯（第１の放射状歯）、７０
……スライドリング、７３……放射状歯（第２の
放射状歯）、７６……傾斜溝（案内手段）、８６
……ワイヤ（作動源）、８８……シリンダ装置（
作動源）、１００……案内ピン（案内手段）、１
０２……案内ピン（案内手段）、１０８……傾斜
突起（嵌入部）。 FIG. 1 is an exploded perspective view showing a preload device and a webbing take-up device according to an embodiment of the present invention, and FIG.
The figure is a partial cross-sectional view of the preload device and webbing take-up device shown in FIG. 1, FIG. 3 is a sectional view of the slide ring and clutch portion shown in FIG. The figure is a view seen from the direction of the arrow line showing the state in which the radial teeth of the slide ring shown in FIG. 1 are engaged with the radial teeth of the clutch part, and FIG. FIG. 6 is an exploded perspective view showing a preload device and a webbing take-up device, FIG. 6 is a partial sectional view showing a preload device and a webbing take-up device according to a third embodiment of the present invention, and FIG. 7 is a fourth embodiment of the present invention. FIG. 2 is a partially sectional view showing a preload device and a webbing take-up device according to an example. 10... Preload device, 12... Webbing take-up device, 26... Take-up shaft, 34... Webbing (occupant restraint webbing), 56... Guide pin (
guide means), 60... Connection shaft, 62... Clutch portion, 66... Radial tooth (first radial tooth), 70
... Slide ring, 73 ... Radial tooth (second radial tooth), 76 ... Inclined groove (guiding means), 86
...Wire (actuation source), 88...Cylinder device (
Actuation source), 100... Guide pin (guiding means), 1
02... Guide pin (guiding means), 108... Inclined projection (fitting part).

Claims

[Claims for Utility Model Registration] A preload device used in a webbing take-up device that winds up occupant restraint webbing onto a take-up shaft, the preload device being connected to the take-up shaft and causing the take-up shaft to wind up the occupant restraint webbing. a connecting shaft that rotates in the direction of rotation; and a first connecting shaft that is connected to the connecting shaft and extends along the radial direction.
a clutch portion on which radial teeth are formed, the clutch portion being disposed on the connecting shaft so as to be rotatable and movable in the axial direction with respect to the connecting shaft, and having the first radial teeth on an end face facing the first radial teeth a slide ring formed with second radial teeth that engage with the teeth; a guide means for moving the slide ring toward the clutch portion when the slide ring is rotated in the webbing winding direction; and coupled to the slide ring. A preload device comprising: an actuation source that forcibly rotates the slide ring in a webbing winding direction when a vehicle suddenly decelerates.