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    • 10. 发明授权
    • Bicycle
    • 自行车
    • US09475544B2
    • 2016-10-25
    • US14687279
    • 2015-04-15
    • Katayama Kogyo Co., Ltd.
    • Noboru Kataoka
    • B62M1/26B62M1/28B62K3/00
    • B62M1/26B62K3/002B62K2204/00B62M1/28
    • A bicycle includes: a frame that supports a front wheel and a rear wheel; a pair of up-and-down links that are respectively provided on a right side and a left side of the frame in a front view; a pair of pedals that are respectively supported by the pair of up-and-down links; and a drive unit that drives the rear wheel. A front end of each of the pair of up-and-down links is pivotally attached to the frame, and a rear end of each of the pair of up-and-down links is respectively connected to each of the pair of pedals. The drive unit includes a pair of crank arms that are arranged point-symmetrically at an angle of 180° in a front view, and a force that depresses each of the pair of pedals so that the pair of pedals alternately swing is transmitted to the pair of crank arms through the pair of up-and-down links. The bicycle further includes a horizontally-holding mechanism that holds each of the pair of pedals approximately horizontally while rotating of each of the pair of up-and-down links.
    • 自行车包括:支撑前轮和后轮的框架; 在前视图中分别设置在框架的右侧和左侧的一对上下连杆; 一对踏板分别由一对上下连接支撑; 以及驱动后轮的驱动单元。 一对上下连杆中的每一个的前端枢转地附接到框架,并且一对上下连杆中的每一个的后端分别连接到该对踏板中的每一个。 驱动单元包括一对曲柄臂,其在正视图中以180°的角度对称布置,并且能够压下该对踏板中的每一个以使得该对踏板交替摆动的力传递到该对 的曲柄臂通过一对上下连接。 所述自行车还包括水平保持机构,所述水平保持机构在所述一对上下链接中的每一个的旋转的同时大致水平地保持所述一对踏板中的每一个。