JPS62130965U

JPS62130965U -

Info

Publication number: JPS62130965U
Application number: JP1868286U
Authority: JP
Priority date: 1986-02-12
Filing date: 1986-02-12
Publication date: 1987-08-18
Also published as: JPH0415560Y2

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案に係るシートベルトのリトラク
ターの実施例を示す一部を破断した概略側面図、
第２図は第１図の―線による断面図、第３図
は第１図および第２図のシートベルトのリトラク
ターの制御機構を示すブロツク図、第４図は第１
図ないし第３図のシートベルトのリトラクターの
作動を示すフローチヤートである。１…ハウジング、２…巻取軸、３…ウエビング
、４…円板、７…遊星歯車、８…太陽歯車、１０
…モータ、１６…レバー、１９…ソレノイド、２
０…内歯歯車、２１…コイルばね、２４…スイツ
チ体、２６…接点支持体、２７…制御用接点、２
８…バツクルスイツチ、２９…制御回路。 FIG. 1 is a partially cutaway schematic side view showing an embodiment of a seat belt retractor according to the present invention;
Fig. 2 is a sectional view taken along the line - - in Fig. 1, Fig. 3 is a block diagram showing the control mechanism of the seat belt retractor shown in Figs.
4 is a flowchart showing the operation of the seat belt retractor of FIGS. DESCRIPTION OF SYMBOLS 1... Housing, 2... Winding shaft, 3... Webbing, 4... Disc, 7... Planet gear, 8... Sun gear, 10
...Motor, 16...Lever, 19...Solenoid, 2
0... Internal gear, 21... Coil spring, 24... Switch body, 26... Contact support, 27... Control contact, 2
8... Buckle switch, 29... Control circuit.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

ウエビングを巻取る巻取軸に固着された腕部材
と、この腕部材に回転自在に支持されている遊星
歯車と、前記巻取軸と同軸的に配置され前記遊星
歯車と噛合する太陽歯車と、この太陽歯車を回転
駆動せしめるモータと、前記巻取軸と同軸的に配
置され前記遊星歯車に噛合する内歯歯車と、この
内歯歯車に前記ウエビングの巻取方向の回転力を
与えるばね部材と、ウエビングの装着時のタング
のバツクル本体への挿入時にＯＮとされるバツク
ルスイツチと、このバツクルスイツチがＯＮのと
きに前記内歯歯車の回転に応じて順次切換わる第
１制御用接点群と、前記バツクルスイツチがＯＦ
Ｆのときに前記内歯歯車の回転に応じて順次切変
わり前記内歯歯車に作用する前記ばね部材による
回転力が前記第１制御用接点群より大きい状態に
おいて作動する第２制御用接点群と、前記バツク
ルスイツチ、第１および第２制御用接点群からの
信号により前記モータの駆動、自由回転ならびに
ロツクを制御する制御回路とを有することを特徴
とするシートベルトのリトラクター。 an arm member fixed to a winding shaft for winding webbing; a planetary gear rotatably supported by the arm member; and a sun gear disposed coaxially with the winding shaft and meshing with the planetary gear. a motor that rotationally drives the sun gear; an internal gear that is disposed coaxially with the winding shaft and meshes with the planetary gear; and a spring member that applies a rotational force to the internal gear in the winding direction of the webbing. , a buckle switch that is turned on when the tongue is inserted into the buckle body when the webbing is attached; a first control contact group that is sequentially switched in accordance with the rotation of the internal gear when the buckle switch is turned on; is OF
a second control contact group that switches sequentially in accordance with the rotation of the internal gear and operates in a state in which the rotational force of the spring member acting on the internal gear is greater than that of the first control contact group when F; , a control circuit for controlling drive, free rotation, and locking of the motor by signals from the buckle switch and the first and second control contact groups.