PROBLEM TO BE SOLVED: To provide a spare tire falling prevention device which can prevent breakage of a chian caused by interference with a case when an external force exceeding a predetermined value is applied to the chain in a direction that the spare tire is pushed forward.SOLUTION: A case 12 has: a lower case 14 which covers at least the lower side of a chain wheel 15 and formed with chain guide holes 14ca, 14cb into which a chain 16 is inserted; an upper case 13 covering at least the upper side of the chain wheel 15; front support means and rear support means which are provided at a case top plate 13c of the upper case and cause the vehicle front side and the vehicle rear side of the case top plate to be supported by a vehicle; and support release means which releases the rear support means supporting the case top plate on the vehicle in a state where an external force exceeding a predetermined value is applied to the chian in a direction that a spare tire is pushed forward.SELECTED DRAWING: Figure 5

    【課題】スペアタイヤが前方に押し込まれる方向に所定値を超える外力がチェーンに加えられたときに、ケースとの干渉によるチェーンの破断を防止できるスペアタイヤ脱落防止装置を提供する。【解決手段】ケース12は、チェーンホイール15の少なくとも下方を覆い、チェーン16が挿通されるチェーン誘導孔14ca,14cbが形成されたロアケース14と、チェーンホイール15の少なくとも上方を覆うアッパケース13とを有し、アッパケースのケース天板13cに設けられ、ケース天板の車両前側及び車両後側を車両にそれぞれ支持させる前側支持手段及び後側支持手段と、スペアタイヤが前方に押し込まれる方向に所定値を超える外力がチェーンに加わった状態において、後側支持手段によるケース天板の車両に対する支持を解除する支持解除手段とを有する。【選択図】図5


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    Title :

    SPARE TIRE FALLING PREVENTION DEVICE


    Additional title:

    スペアタイヤ脱落防止装置


    Contributors:

    Publication date :

    2018-03-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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