The present invention relates to a connecting bolt for a bicycle which has a bicycle wheel frame having a pair of connecting portions coupled to a hub on both ends of the hub in the center of a wheel, which is penetrated and inserted into the connection portions and the hub. The connecting bolt comprises: a rotation shaft unit inserted and penetrated into a cutting portion for connecting a bolt arranged in the connecting portions and the hub, wherein a screw thread is formed; a fixing unit arranged in an end portion of the rotation shaft unit; a protrusion portion capable of being inserted into a connecting hole arranged in the connecting portions in one surface of the fixing unit coupled to the rotation shaft unit; and a bolt head formed to protrude in the other surface of the fixing unit. Therefore, according to a preferred embodiment of the present invention, as a wheel of a bicycle is assembled using the connecting bolt for a bicycle, the protrusion portion of the fixing unit is fixedly inserted into a connecting hole of the connecting portions of the bicycle wheel frame, thereby assembling and removing a bicycle wheel only by connecting a but to a screw thread of the connecting bolt penetrating the connecting portions. Moreover, according to the connecting bolt for a bicycle of a preferred embodiment of the present invention, after assembling the connecting bolt, even if a nut connected to the connecting bolt comes untied by vibration or the like, the protrusion portion is inserted into the connecting portions for a wheel not to easily come off.
본 발명은 자전거용 체결볼트에 것으로서, 차륜 중앙의 허브의 양단에서 상기 허브와 결합되는 한 쌍의 결합부를 구비하는 차륜프레임을 포함하는 자전거에 있어서, 상기 결합부와 상기 허브에 관통삽입되는 자전거용 체결볼트로서, 상기 체결볼트는, 상기 결합부에 마련된 볼트체결용 절개부와 상기 허브에 삽입관통되고, 나사산이 형성된 회전축부와, 상기 회전축부의 단부에 마련된 고정부를 포함하며, 상기 회전축부와 결합된 고정부의 일면에는 결합부에 마련된 체결공에 삽입될 수 있는 돌기부가 형성되고, 고정부의 타면에는 볼트머리가 돌출형성된 자전거용 체결볼트를 특징으로 한다. 따라서, 본 발명의 바람직한 실시예에 따른 자전거용 체결볼트로 자전거의 바퀴를 조립하면 고정부의 돌기부가 차륜프레임의 결합부의 체결공에 끼워져 고정되기 때문에, 결합부를 관통한 체결볼트의 나사산부에 너트를 체결하는 것만으로도 자전거 바퀴의 조립이나 탈거가 가능하다. 또한, 본 발명의 바람직한 실시예에 따른 자전거용 체결볼트에 따르면, 체결볼트의 조립 후 진동 등에 의해 체결볼트에 체결된 너트가 풀리더라도 돌기부가 결합부에 끼워져 있기 때문에 바퀴가 쉽게 빠지지 않는다는 효과가 있다.
CONNECTING BOLT FOR A BICYCLE
자전거용 체결볼트
2015-10-01
Patent
Electronic Resource
Korean
IPC: | F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile / B62K Fahrräder , CYCLES |
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