To provide a seal device for a fuel filler tube capable of suppressing as much as possible, the diffusion of an evaporated fuel into the atmosphere when inserting an oil supply nozzle and also when opening a fuel cap.SOLUTION: In a seal device for a fuel filler tube, plural pivots 16 are arranged at even intervals outside the inlet and outlet openings 12 and 14 in a radial direction in a storage case 10; each opening/closing split body 20 splitting the opening cross section of the outlet opening 14 is rotatably supported by each pivot 16; and each opening/closing split body 20 is energized by a spring member 18 so as to rotate inside in a radial direction. A cam face 28 inclining so that the opening sectional center part of an inlet opening 12 and an adjacent part of the pivot 16 become the front end of an oil feed nozzle N in an insertion direction, is provided at the inlet opening part 12 side of each opening/closing split body 20. Besides, a contact face 24 nearly tightly contacting the circumference of the tip part T of the oil feed nozzle N is formed on the periphery of the opening/closing split body 20, and when the nozzle N is not inserted, the contact face 24 of the opening/closing split body 20 contacts nearly tightly the contacted face 26 of the adjacent opening/closing split body 20 and thereby, the outlet opening 14 is closed.SELECTED DRAWING: Figure 3

    【課題】給油ノズル挿入時及び燃料キャップ開栓時の双方で気化燃料の大気放散を可及的に抑制可能な燃料給油管のシール装置を提供する。【解決手段】入口開口部12及び出口開口部14の径方向外側で収納ケース10内に複数の回転軸16を等配し、各回転軸16で出口開口部14の開口断面を分割する開閉分割体20を回転自在に支持し、ばね部材18で各開閉分割体20を径方向内側に回転するように付勢する。各開閉分割体20の入口開口部12側には、入口開口部12の開口断面中央部及び回転軸16の近傍部が給油ノズルNの挿入方向先方になるように傾斜するカム面28が設けられると共に、各開閉分割体20の外周には、給油ノズルNのノズル先端部Tの外周に略密接する接触面24を形成する。給油ノズルNが挿入されていないときには、開閉分割体20の接触面24が隣接する開閉分割体20の被接触面26に略密接して出口開口部14が閉塞される。【選択図】図3


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    Titel :

    SEAL DEVICE FOR FUEL FILLER TUBE


    Weitere Titelangaben:

    燃料給油管のシール装置


    Beteiligte:

    Erscheinungsdatum :

    2020-02-06


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF / F16J Kolben , PISTONS



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