To provide a structure that can reduce the weight while necessary strength of a portion of a rack tooth engageable with a second pinion shaft that is driven by an electric motor.SOLUTION: A tooth width of a second rack tooth 15 engageable with a second pinion tooth 14 of a second pinion shaft 13 that is rotatably driven by an electric motor 22 is designed to be larger than a tooth width of a first rack tooth 12 engageable with a first pinion tooth 11 of a first pinion shaft 10 that is rotatably driven by a steering wheel.SELECTED DRAWING: Figure 1

    【課題】ラック歯のうちで電動モータにより駆動される第2ピニオン軸と噛合する部分の必要な強度を確保しつつ、軽量化を図ることができる構造を提供する。【解決手段】電動モータ22により回転駆動される第2ピニオン軸13の第2ピニオン歯14と噛合する第2ラック歯15の歯幅を、ステアリングホイールにより回転駆動される第1ピニオン軸10の第1ピニオン歯11と噛合する第1ラック歯12の歯幅よりも大きくする。【選択図】図1


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    Title :

    RACK SHAFT FOR DUAL PINION TYPE ELECTRIC POWER STEERING DEVICE AND MANUFACTURING METHOD THEREOF, AND DUAL PINION TYPE ELECTRIC POWER STEERING DEVICE


    Additional title:

    デュアルピニオン式電動パワーステアリング装置用ラック軸及びその製造方法、並びに、デュアルピニオン式電動パワーステアリング装置


    Contributors:

    Publication date :

    2022-08-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge




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