PROBLEM TO BE SOLVED: To provide a bicycle for training to bicycle, which enables easy and speedy attachment/detachment of a bracket unit pivotally supporting a pedal crank and which excels in strength and durability.SOLUTION: A bicycle for training to bicycle, in which a coupling part 31 projecting from a bracket unit 30 is attachable to or detachable from a cylindrical part 21 extending downward from a body frame of a vehicle body, comprises: a vertically long slit 22 formed at the lower end of the cylindrical part 21; a body-side through-hole 23 formed above the slit 22; a projection 32 formed on the coupling part 31 and engaged with the slit 22 so as to be vertically disposed in contact with the inside faces of the slit; and a bracket-unit-side through hole 33 formed in the coupling part 31 in a position where this through-hole coincides with the body-side through-hole 23 when the slit 22 and the projection 32 are engaged. The coupling part 31 is fixed to the cylindrical part 21 by means of a bolt 40 and a nut 41 inserted into both the through-holes 23, 33.SELECTED DRAWING: Figure 1

    【課題】 ペダルクランクを軸支するブラケットユニットを簡単かつ迅速に着脱でき、かつ、強度と耐久性に優れた走行練習用自転車を提供すること。【解決手段】本発明は、ブラケットユニット30に突出形成した連結部31を、車体の本体フレームから下方に延びる筒状部21に対して着脱可能とした走行練習用自転車であって、前記筒状部21の下端部に形成された縦長のスリット22と、前記スリット22の上方に形成された本体側の透孔23と、前記連結部31に形成され、前記スリット22の内側面と上下方向において長く接するように係合する突条32と、前記スリット22と前記突条32の係合状態において、前記本体側の透孔23と一致する位置にて前記連結部31に形成されたブラケットユニット側の透孔33と、を備え、前記両透孔23,33に挿通されるボルト40とナット41によって前記筒状部21に対して前記連結部31を固定した走行練習用自転車である。【選択図】図1


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    Title :

    BICYCLE FOR TRAINING TO BICYCLE


    Additional title:

    走行練習用自転車


    Contributors:
    SHODA KAZUO (author) / KUBO AKIHIKO (author)

    Publication date :

    2018-04-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62H CYCLE STANDS , Fahrrad- oder Motorradständer / B62K Fahrräder , CYCLES / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer



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