To achieve excellent strength and durability of a double-wheel caster even through a large number of resin components are used therein, while maintaining smooth rotation of wheels.SOLUTION: A double-wheel caster 1A including a holder 2 in which an axle 25A is horizontally supported, and right and left wheels 5, 5 each pivotally and rotatably supported in both end sides of the axle 25A at a predetermined interval. In the double-wheel caster 1A, the wheels 5, 5 are synthetic resin components each formed to have a basin-like shape with a ring-shape peripheral wall 5b in which an outer circumferential surface is a grounded surface. A bottomed cylindrical bearing 5a is formed in the center part of the inside surface of the wheels 5, 5, the bearing 5a being formed with an insertion hole 50 into which end sides of the axle 25A are inserted. A plurality of reinforcing ribs 55 are provided radially around the bearing 5a, the reinforcing ribs extending in a U-shape from a tip end side of the outer circumferential surface of the bearing 5a to a tip end side of the inside surface of the peripheral wall 5b via a bottom part of the inside surface.SELECTED DRAWING: Figure 2

    【課題】双輪キャスターについて樹脂部品を多用しても強度・耐久性に優れたものとしながら、車輪のスムースな回転を維持できるようにする。【解決手段】車軸25Aを水平方向に支持したホルダ2と、車軸25Aの両端側で所定間隔を置いて各々回転可能に軸支された左右の車輪5,5とを備えた双輪キャスター1Aにおいて、その車輪5,5は、外周面が接地面になる円環状の周壁5bを有して盆状に形成された合成樹脂部品であり、その内側面中心部に車軸25Aの端部側を挿入する挿入穴50を形成した有底円筒状の軸受部5aが形成されているとともに、軸受部5aの外周面先端側から内側面底部を経由して周壁5bの内側面先端側までコ字状に延設された複数本の補強用リブ55が軸受部5aを中心に放射状に設けられていることを特徴とするものとした。【選択図】図2


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    Title :

    DOUBLE-WHEEL CASTER


    Additional title:

    双輪キャスター


    Contributors:

    Publication date :

    2023-03-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60B VEHICLE WHEELS , Räder für Fahrzeuge



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