To provide a seat belt retractor and a seatbelt take-up device which enable electric current generated by counter electromotive force to flow back to a motor easily.SOLUTION: A seat belt retractor includes: a spool for taking up a seat belt; a motor which rotates the spool; a driving circuit which drives the motor; and at least one rectification element which is constantly connected in parallel to the motor and causes electric current generated in the motor by counter electromotive force to flow back to the motor. A seat belt take-up mechanism includes: a spool for taking up a seat belt; a motor which rotates the spool; and at least one rectification element which is constantly connected in parallel to the motor and causes electric current generated in the motor by counter electromotive force to flow back to the motor.SELECTED DRAWING: Figure 2
【課題】逆起電力による電流を容易にモータに還流させることが可能なシートベルトリトラクタ及びシートベルト巻き取り機構を提供すること。【解決手段】シートベルトを巻き取るためのスプールと、前記スプールを回転させるモータと、前記モータを駆動する駆動回路と、前記モータに並列に常時接続されており、前記モータに発生する逆起電力による電流を前記モータに還流させる少なくとも一つの整流素子とを備える、シートベルトリトラクタ。シートベルトを巻き取るためのスプールと、前記スプールを回転させるモータと、前記モータに並列に常時接続されており、前記モータに発生する逆起電力による電流を前記モータに還流させる少なくとも一つの整流素子とを備える、シートベルト巻き取り機構。【選択図】図2
SEAT BELT RETRACTOR AND SEAT BELT TAKE-UP MECHANISM
シートベルトリトラクタ及びシートベルト巻き取り機構
05.09.2019
Patent
Elektronische Ressource
Japanisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / H03K PULSE TECHNIQUE , Impulstechnik |
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