发明名称 POWER TRANSMISSION DEVICES IN CHAINLESS TYPE BICYCLE
摘要 <p>The power transmission device of a chainless type bicycle, in a bicycle to transfer power of a pedal set in a head of a frame to a back wheel, comprises a first housing (20) having a loosing preventing nut (26) combined with an end portion of an inner circumference face thereof, an extension part (23) into the head (1a) of the frame (1), and a ring nut (27) fastened to the loosing preventing nut (26) projected from one side of the head (1a); a pedal axis (30) which is inserted into one side of the first housing (20) and whose one end is supported by a first housing cover (28) combined with the first housing (20); a first bevel gear (40) installed in the first housing (20); a driving axis (50) interlocked with the first bevel gear (40); an axis cover (52) wrapping around an outer face of the driving axis (50); a second bevel gear (60) for transmitting a rotating force of the driving axis (50) to the back wheel (8); a second housing (70) has a cut section (70a), the cut section (70a) having a formation of a fixing flute (72a); and a second housing cover (75) which covers the cut section (70a) of the second housing (70) and whose one side is fixed by a fixing nut (76).</p>
申请公布号 WO2000068069(A1) 申请公布日期 2000.11.16
申请号 KR2000000428 申请日期 2000.05.06
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