PROBLEM TO BE SOLVED: To reduce a load acting on a support mechanism which supports vertical motion of a wheel.SOLUTION: A caster unit 100 movably supports a mobile body and includes: a base member 10 attached to the mobile body; a parallel link 20 which is rotatably supported by the base member 10 at one end 20a and may vertically swing; an axle 31 supported by the parallel link 20; a wheel 30 rotatably supported by the axle 31; and a spring damper 40 which is provided between the axle 31 and the base member 10 and expands and contracts in a direction parallel to a tangent line of a locus of the axle 31 swung by the parallel link 20 to generate a damping force and a restorative force.

    【課題】車輪の上下動を支持する支持機構に作用する荷重を小さくする。【解決手段】移動体を移動可能に支持するキャスタユニット100であって、移動体に取り付けられるベース部材10と、一端20aがベース部材10に回動自在に支持されて上下に揺動可能な平行リンク20と、平行リンク20によって支持される車軸31と、車軸31に回転自在に支持される車輪30と、車軸31とベース部材10との間に設けられ、平行リンク20によって揺動する車軸31の軌跡の接線と平行な方向に伸縮して減衰力と復元力とを発生するスプリングダンパ40と、を備える。【選択図】図1


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    Title :

    CASTER UNIT


    Additional title:

    キャスタユニット


    Contributors:

    Publication date :

    2016-01-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60B VEHICLE WHEELS , Räder für Fahrzeuge



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