To provide a seatbelt retractor not only capable of reducing the load on a motor related to clutch operation, thereby achieving downsizing and extending the life of the motor, but also enabling quick clutch release.SOLUTION: A power transmission mechanism 5 of a retractor 1 includes a clutch mechanism 10 that enables power to be transmitted from a motor 4 to a spindle 3 when the motor 4 rotates in a first direction (an arrow 100). The clutch mechanism 10 is configured to: when the motor 4 rotates in the first direction by a first number of rotations, switch from a clutch OFF state into a clutch ON state: and meanwhile, when the motor 4 rotates in a second direction (an arrow 200) opposite to the first direction by a second number of rotations that is smaller the first number of rotations, or when the motor 4 stops, switch from the clutch ON state into the clutch OFF state.SELECTED DRAWING: Figure 4

    【課題】クラッチ動作に関わるモータへの負荷を減らしてモータの小型化・長寿命化を図ることができると共に、迅速なクラッチ解除を可能にするシートベルト用リトラクタを提供すること。【解決手段】リトラクタ1の動力伝達機構5は、モータ4が第1の方向(矢印100)に回転するとき、モータ4からスピンドル3への動力の伝達を可能にするクラッチ機構10を備える。クラッチ機構10は、モータ4が第1の方向に第1の回転数だけ回転する際、クラッチOFFからクラッチONに切り替わり、モータ4が第1の方向と反対の第2の方向(矢印200)に第1の回転数よりも少ない第2の回転数だけ回転する際、又は、モータ4が停止する際、クラッチONからクラッチOFFに切り替わるように構成される。【選択図】図4


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    Title :

    SEAT BELT RETRACTOR


    Additional title:

    シートベルト用リトラクタ


    Contributors:

    Publication date :

    2023-09-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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