PROBLEM TO BE SOLVED: To enable safe, efficient traction work by preventing sudden load from being applied to a vehicle body and a traction apparatus even in a case where a traction vehicle suddenly starts traction with great force.SOLUTION: A traction assisting device 1 comprises: a double cylinder including an inner cylinder 20 and an outer cylinder 10 axially movable in a predetermined range and configured such that, during traction, traction force is applied from one side of the axial direction to an inner-cylinder first lid facing an external part in the inner cylinder and traction force is applied from the other side in the axial direction to an outer-cylinder first lid facing an external part in the outer cylinder; a coil spring wound around outside, whose one end is fixed to the inner cylinder and the other end is fixed to the outer cylinder, and that can be stretched when drawn; and a cylinder disposed in the inner cylinder in order to function as a dumper for axial movement of the inner cylinder and outer cylinder. A bottom lid of the cylinder is connected to the outer cylinder, and a piston defining at least one oil chamber in the cylinder is connected to the inner cylinder.SELECTED DRAWING: Figure 1

    【課題】牽引車がいきなり大きな力で牽引を開始した場合にも、車体や牽引器具に急激な負荷がかかることを防止し、安全で効率的な牽引作業を行うことを可能とする。【解決手段】牽引補助具1が、所定範囲内で軸方向移動可能な内筒20と外筒10とを具備し牽引時には、内筒における外部に面した内筒第1蓋に対し軸方向の一方からの牽引力がかかる共に、外筒における外部に面した外筒第1蓋に対し軸方向の他方からの牽引力がかかるように構成された二重筒と、外側に巻回され一端が内筒に他端が外筒に固定されかつ牽引時に伸張可能なコイルスプリングと、内筒と外筒の軸方向移動に対するダンパーとして機能するべく内筒の内部に配置されたシリンダと、を有し、シリンダのシリンダ底蓋が外筒と連結されていると共に、シリンダ内の少なくとも1つの油室を区画するピストンが内筒と連結されている。【選択図】図1


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    Titel :

    TRACTION ASSISTING DEVICE


    Weitere Titelangaben:

    牽引補助具


    Beteiligte:

    Erscheinungsdatum :

    2018-05-10


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B60D Fahrzeugverbindungen , VEHICLE CONNECTIONS / F16F SPRINGS , Federn



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