To suppress generation of a negative pressure in an internal rack housing while achieving compactification of a reduction gear.SOLUTION: A steering gear 100 includes: a rack shaft 130; a rack housing 131; a pinion shaft 160; a worm wheel 159 connected with the pinion shaft 160 to be integrally rotatable; a reduction gear 150 with a worm shaft; a cylindrical reduction gear housing 151; a motor 140 for driving the worm shaft; a plate-shaped cover 180 for sealing an opening in the reduction gear housing 151; and a breather valve 170 mounted on the cover 180 under a penetration state. The cover 180 includes a concave-shaped mounting part 181 mounted so that the breather valve 170 is positioned nearer to the pinion shaft 160 side than an external surface.SELECTED DRAWING: Figure 4

    【課題】減速機をコンパクト化しつつラックハウジング内方の負圧発生を抑制する。【解決手段】ラックシャフト130と、ラックハウジング131と、ピニオンシャフト160と、ピニオンシャフト160に一体回転可能に連結されたウォームホイール159と、ウォームシャフトとを有する減速機150と、筒状の減速機ハウジング151と、前記ウォームシャフトを駆動するモータ140と、減速機ハウジング151の開口を封止する板状のカバー180と、カバー180に貫通状態で取り付けられる呼吸弁170とを備え、カバー180は、外面よりピニオンシャフト160側に呼吸弁170が位置するように取り付けられる陥凹状の取付部181を備える操舵装置100。【選択図】図4


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    Title :

    STEERING GEAR


    Additional title:

    操舵装置


    Contributors:

    Publication date :

    2020-04-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16J Kolben , PISTONS / F16H Getriebe , GEARING / B62D MOTOR VEHICLES , Motorfahrzeuge



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