PROBLEM TO BE SOLVED: To provide a two-wheel cart equipped with a sled, which can be used for a long term only by replacing some parts without causing abrasion of a non-slip strip for a staircase.SOLUTION: The two-wheel cart comprises a sled part of a pipe made of metal in a shape in which a part that contacts a corner of a staircase is a planar surface and parts at both sides leading to the surface are portions of circular arcs, where a side that contacts the staircase of the pipe is covered with a protective member made of synthetic resin. The protective member is constituted of a flat surface part contacting the part of the planar surface of the pipe and the parts that become portions of the circular arcs at both sides of the surface. Radii of some parts of the circular arcs at both sides of the planar surface part of the protective member are smaller than radii of the parts of the circular arcs at both sides leading to the planar surface part of the pipe. When the protective member is pressed against the pipe, an interval between tips of some portions of the circular arcs at both sides of the planar surface part of the protective member are widened by elastic force of the synthetic resin, and then the portions of the circular arcs at both sides leading to the planar part of the pipe are fastened, so that the pipe is closely contacted with the protective member.SELECTED DRAWING: Figure 1

    【課題】この発明は、階段のすべり止めを摩耗させず、一部の部品の交換のみで長期に使用できる、そりを備えた二輪カートを提供することを課題とする。【解決手段】階段の角に接する部分が平面であり、それにつながる両側の部分は円弧の一部となっている形状の金属でできたパイプのそり部があり、パイプの階段に接する側が合成樹脂製の保護部材で覆われており、保護部材は、パイプの平面の部分に接する平面部分とその両側の円弧の一部となる部分とからなり、保護部材の平面部分の両側の円弧の一部の部分の半径は、パイプの平面の部分につながる両側の円弧の部分の半径よりも小さくなっており、保護部材をパイプに押し当てると、合成樹脂の弾力性のため、保護部材の平面部分の両側の円弧の一部の部分の先端同士の間隔は広がった後、パイプの平面の部分につながる両側の円弧の部分締め付け、パイプと保護部材が密着する、構成とした。【選択図】図1


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    Titel :

    TWO-WHEEL CART


    Weitere Titelangaben:

    二輪カート


    Beteiligte:

    Erscheinungsdatum :

    2018-08-09


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B62B Von Hand bewegte Fahrzeuge, z.B. Handkarren oder Kinderwagen , HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS



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