公开(公告)号：EP1431171A2

公开(公告)日：2004-06-23

申请号：EP03027555.6

申请日：2003-12-01

申请人： Gayoh, Naotaka

发明人： Gayoh, Naotaka

IPC分类号： B62M3/06

CPC分类号： B62M3/06 ,  B62M1/26 ,  Y10T74/2164 ,  Y10T74/2165 ,  Y10T74/2167

摘要： To reduce the load alternately imposed on the rider's legs when the pedals are stepped and to use the muscle of the entire legs in a well balanced manner, thereby naturally returning the pedals to the initial position of the stepping operation without forming an unnatural bending state of each leg at the returning track of the pedal. A crank mechanism for a bicycle comprises a main crank (9), a follower crank (12), and a connecting lever (15) disposed between free ends of the cranks (9, 12), a second fixed fulcrum shaft (11) of the follower crank (12) being arranged at a location obliquely upward and backward of a first fixed fulcrum shaft (8) of the main crank (9), the follower crank (12) being extended downward beyond a line (L2) connecting the first and second fixed fulcrum shafts (8), (11) from the second fixed fulcrum shaft (11) such that a second free fulcrum shaft (11) at its free end is swung below the line (L2) connecting the first and second fixed fulcrum shafts (8, 11), a pedal (16) being attached to a projection end (17) in the vicinity of a first free fulcrum shaft (13) of the lever (15) and arranged in the vicinity of the free end of the main crank (9), the pedal (16) being rotated along a non-circular track (T) passing through the first and second fixed fulcrum shafts (8 and 11), and the first fixed fulcrum shaft (8) being located at an internal area of the track (T).

摘要翻译： 为了减轻踏板踩踏时交替施加在骑手腿上的负荷，并以良好平衡的方式使用整个腿部的肌肉，从而自然地将踏板返回到步进操作的初始位置，而不形成不自然的弯曲状态 每条腿在踏板的返回轨道上。 一种用于自行车的曲柄机构包括主曲柄（9），从动曲柄（12）和设置在曲柄（9,12）自由端之间的连杆（15），第二固定支点轴（11） 所述从动曲柄（12）设置在所述主曲柄（9）的第一固定支点轴（8）的斜向上和向后的位置处，所述从动曲柄（12）向下延伸超过连接所述第一 和第二固定支点轴（11），使得其自由端处的第二自由支轴（11）摆动到连接第一和第二固定支点（11）的线（L2）的下方 轴（8,11），踏板（16）在杠杆（15）的第一自由支点轴（13）附近附接到突出端（17）并布置在所述杠杆（15）的自由端附近 主曲柄（9），踏板（16）沿着穿过第一和第二固定支点轴（8和11）的非圆形轨道（T）旋转，并且第一固定支点轴 支点轴（8）位于轨道（T）的内部区域。

公开(公告)号：EP1431171A3

公开(公告)日：2006-06-28

申请号：EP03027555.6

申请日：2003-12-01

申请人： Gayoh, Naotaka

发明人： Gayoh, Naotaka

IPC分类号： B62M3/06

CPC分类号： B62M3/06 ,  B62M1/26 ,  Y10T74/2164 ,  Y10T74/2165 ,  Y10T74/2167

摘要： To reduce the load alternately imposed on the rider's legs when the pedals are stepped and to use the muscle of the entire legs in a well balanced manner, thereby naturally returning the pedals to the initial position of the stepping operation without forming an unnatural bending state of each leg at the returning track of the pedal. A crank mechanism for a bicycle comprises a main crank (9), a follower crank (12), and a connecting lever (15) disposed between free ends of the cranks (9, 12), a second fixed fulcrum shaft (11) of the follower crank (12) being arranged at a location obliquely upward and backward of a first fixed fulcrum shaft (8) of the main crank (9), the follower crank (12) being extended downward beyond a line (L2) connecting the first and second fixed fulcrum shafts (8), (11) from the second fixed fulcrum shaft (11) such that a second free fulcrum shaft (11) at its free end is swung below the line (L2) connecting the first and second fixed fulcrum shafts (8, 11), a pedal (16) being attached to a projection end (17) in the vicinity of a first free fulcrum shaft (13) of the lever (15) and arranged in the vicinity of the free end of the main crank (9), the pedal (16) being rotated along a non-circular track (T) passing through the first and second fixed fulcrum shafts (8 and 11), and the first fixed fulcrum shaft (8) being located at an internal area of the track (T).