JPS59176251U

JPS59176251U - seat belt retractor

Info

Publication number: JPS59176251U
Application number: JP834783U
Authority: JP
Inventors: 前田　公三
Original assignee: 日産自動車株式会社
Priority date: 1983-01-24
Filing date: 1983-01-24
Publication date: 1984-11-26
Also published as: JPH0213265Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は、従来のシートベルトリトラクタの一例を示す
電気回路図、第２図はその概略構成図、第３図は本考案
の一実施例を示す破断正面図、第４図は第３図側面説明
図、第５図はタンブラ−スイッチの回路図、第６図は本
考案の一実施例の構成を示すブロック図である。１・・・ハウジング、２・・・巻取軸、３・・・ベルト
、４・・・（巻き取り用）スプリング、８・・・ラチェ
ットホイール、９・・・ストッパ、１１・・・回転角検
出用歯車、１２・・・タンブラ−スイッチ、１３・・・
モータ、１６・・・ソレノイド。Fig. 1 is an electric circuit diagram showing an example of a conventional seat belt retractor, Fig. 2 is a schematic configuration diagram thereof, Fig. 3 is a cutaway front view showing an embodiment of the present invention, and Fig. 4 is a Fig. 3 FIG. 5 is a circuit diagram of a tumbler switch, and FIG. 6 is a block diagram showing the configuration of an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Housing, 2... Winding shaft, 3... Belt, 4... Spring (for winding), 8... Ratchet wheel, 9... Stopper, 11... Rotation angle Detection gear, 12... Tumbler switch, 13...
Motor, 16...Solenoid.

Claims

[Scope of utility model registration request]

A winding shaft having a fixed belt end, a spring that constantly urges the winding shaft to rotate in the belt winding direction, a motor that rotates the winding shaft in the belt pulling direction against the spring, and a winding shaft. a tensionless lock mechanism that only prevents rotation of the take-up shaft in the belt winding direction; a signal generator that generates a signal corresponding to a rotation angle of the take-up shaft in the belt winding and unwinding direction; and the signal generator. calculation means for calculating rotation angles of the winding shaft in the two directions based on the output of the device;
A slack amount setter that sets the amount of slack in a belt worn by a passenger according to the running condition of the vehicle, a comparator that compares the slack amount setter with an output signal of the calculation means, and an output signal of the comparator. A seat belt retractor comprising: a control means for controlling the motor and the tensionless lock mechanism based on the above.