PROBLEM TO BE SOLVED: To enable a front fork portion of a bicycle to be attached and detached easily compared to the prior art.SOLUTION: A coupling unit 10 for a bicycle component is configured to couple a front fork portion 28 to a frame body of the bicycle. The coupling unit includes: a head pipe 143 having a lower end portion 143D as a first end portion with an opening and serving as a cylindrical case attached to a front portion of the frame body; and a shaft member 30 axially supported in the head pipe 143 and having a square shaft portion 302D as a first fitting portion located adjacent to the lower end portion 143D. The front fork portion 28 includes a square hole 362 as a first fitted portion into which the square shaft portion 302D is fitted. In a state where the square shaft portion 302D is fitted into the square hole 362, the front fork portion is detachably fixed to the shaft member 30 so as not to rotate relative to the shaft member and is coupled to the shaft member 30 integrally rotatably therewith about a shaft center C2 of the shaft member.SELECTED DRAWING: Figure 3
【課題】自転車の前ホーク部分を従来よりも簡易に着脱できるようにする。【解決手段】自転車のフレーム体に前ホーク部分28を結合する自転車部品の結合ユニット10は、第1の端部である下端部143Dが開口し、フレーム体前部に取り付けられる筒状ケースであるヘッドパイプ143と、ヘッドパイプ143内に軸支され、下端部143D側に第1の嵌合部である角軸部302Dを有する軸部材30と、を含む。前ホーク部分28は、角軸部302Dと嵌合される第1の被嵌合部である角穴362を有し、この角穴362に角軸部302Dが嵌合した状態で軸部材30に相対回転不能かつ着脱可能に固定され、軸部材30と一体になって軸部材の軸心C2回りに回動可能に結合される。【選択図】図3
COUPLING UNIT FOR BICYCLE COMPONENT AND BICYCLE
自転車部品の結合ユニットおよび自転車
2018-11-08
Patent
Electronic Resource
Japanese
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