JPS62161068U

JPS62161068U -

Info

Publication number: JPS62161068U
Application number: JP4923186U
Authority: JP
Priority date: 1986-04-01
Filing date: 1986-04-01
Publication date: 1987-10-13
Also published as: JPH0415558Y2

Description

[Brief explanation of the drawing]

第１図は本考案シートベルト巻取装置の一実施
例を示す正断面図、第２図は同巻取装置の側断面
図、第３図は本考案シートベルト巻取装置に適用
可能な慣性部材の一例を示す斜視図、第４図は従
来の慣性部材を備えたシートベルト巻取装置の正
断面図、第５図は従来の慣性部材の構成を示す分
解斜視図である。２１…フレーム部材、２４…巻取シヤフト、２
７…シートベルト、３０…ラチエツトホイール、
３１…係合歯、３２…パウル、３５，３８，４０
…クラツチ式連動機構、４６…慣性部材、４８…
支承部分、４９…外周部分（外周ボス部）、５０
…スプリング部材、５４…外歯、５５…ビークル
センサ、５６…作動爪。 Fig. 1 is a front sectional view showing an embodiment of the seat belt retractor of the present invention, Fig. 2 is a side sectional view of the same retractor, and Fig. 3 is an inertia applicable to the seat belt retractor of the present invention. FIG. 4 is a front sectional view of a seatbelt retractor equipped with a conventional inertial member, and FIG. 5 is an exploded perspective view showing the configuration of the conventional inertial member. 21... Frame member, 24... Winding shaft, 2
7...Seat belt, 30...Ratchet wheel,
31... Engaging tooth, 32... Pawl, 35, 38, 40
...Clutch type interlocking mechanism, 46...Inertial member, 48...
Supporting part, 49...Outer peripheral part (outer peripheral boss part), 50
...Spring member, 54...External tooth, 55...Vehicle sensor, 56...Operation claw.

Claims

[Scope of Claim for Utility Model Registration] 1. A frame member fixed within the vehicle body, rotatably supported by the frame member, and one end of the seat belt attached to the outer periphery so as to constantly rotate in the seat belt winding direction. a ratchet wheel fixed to the end of the winding shaft and having a large number of engaging teeth on its outer periphery, and a ratchet wheel disposed coaxially adjacent to the ratchet wheel, a round inertial member rotatably supported by a shaft; a pawl pivotally connected to a frame member near the outer periphery of the ratchet wheel and removable from the engagement teeth of the ratchet wheel; a clutch-type interlocking mechanism that is located between the pawl and the inertia member and engages the pawl with the engagement teeth of the ratchet wheel when the inertia member lags behind the take-up shaft in the direction in which the seat belt is pulled out; A seat belt retractor comprising: a support portion and an outer peripheral portion of the inertial member are formed continuously and integrally from a synthetic resin material, and a spring member made of linear spring steel is rotatable relative to the inertial member. A seatbelt retractor characterized in that the spring member is friction-fitted with the clutch-type interlocking mechanism. 2. The seatbelt retractor according to claim 1, wherein the inertial member integrally has a large number of external teeth on its outer periphery that can engage with the operating pawl of a vehicle sensor provided on the frame member. 3. A clutch-type interlocking mechanism is supported between a ratchet wheel and an inertial member so as to be rotatable in forward and reverse directions, and includes a lock ring that engages and disengages the pawl from the ratchet wheel as it rotates, and a clutch case on the side surface of the lock ring. supported within the winding shaft so as to be displaceable in the direction perpendicular to the axis, and
The claw portion includes a carrier that can engage with internal teeth on the inner surface of the clutch case, and the U-shaped bent portion of the spring member engages with the protrusion of the carrier. The seat belt retractor according to item 1 or 2.