PROBLEM TO BE SOLVED: To provide a fuel tank of a saddle-riding type vehicle which can be equipped with a breather mechanism while materializing reduction in the number of components, weight and welding man-hours.SOLUTION: A fuel tank 40 of a saddle-riding type vehicle is provided in which an openable/closable type fuel cap 60 with a built-in breather mechanism is provided. The fuel cap 60 is configured to cap an upper part of a tube member 47 constituting an oil filler port of the fuel tank 40. The breather mechanism is configured to discharge vaporized fuel subjected to gas-liquid separation through a labyrinth passage 67 in the fuel cap 60 through a breather drain hose 61 supported on the fuel tank 40 side. The fuel tank 40 comprises a plate-like member 69 which is fixed to a support member 80 for supporting the fuel cap 60 on the fuel tank 40 and a seal member 64 which air-tightly communicates an outlet 67a of the labyrinth passage 67 with an end part of the breather drain hose 61 when closing the fuel cap 60. The breather drain hose 61 to be connected to a lower side of the seal member 64 is supported on the plate-like member 69.SELECTED DRAWING: Figure 2

    【課題】部品点数や重量、溶接工数を抑えてブリーザ機構を備えることができる鞍乗型車両の燃料タンクを提供する。【解決手段】ブリーザ機構を内蔵した開閉式の燃料キャップ60が設けられる鞍乗型車両の燃料タンク40において、燃料キャップ60が燃料タンク40の給油口を構成する筒部材47の上部に蓋をする構成とされ、ブリーザ機構は燃料キャップ60内のラビリンス通路67で気液分離した気化燃料を燃料タンク40側に支持されたブリーザドレンホース61で排出する構成とされており、燃料キャップ60を燃料タンク40に支持するための支持部材80に固定される板状部材69と、燃料キャップ60を閉じた際にラビリンス通路67の出口67aとブリーザドレンホース61の端部とを気密に連通させるシール部材64とを備える。シール部材64の下側に接続されるブリーザドレンホース61を板状部材69に支持する。【選択図】図2


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    Title :

    FUEL TANK OF SADDLE-RIDING TYPE VEHICLE


    Additional title:

    鞍乗型車両の燃料タンク


    Contributors:
    SAITO YUSUKE (author) / USA KIMITOKU (author)

    Publication date :

    2018-04-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62J Fahrrad- oder Motorradsättel oder -sitze , CYCLE SADDLES OR SEATS



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