PROBLEM TO BE SOLVED: To provide a foot-operated bicycle that can easily be moved with less torque than a conventional foot-operated bicycle.SOLUTION: A foot-operated bicycle 1 comprises: a body frame 2; a wheel 3 having an annular rim 3a and a plurality of rim teeth 3b circumferentially provided on the outer periphery of the rim 3a; a kick rod 6 one end of which is provided with a foot pedal 5 and the other end of which is pivotally attached to the center shaft R1 of the wheel 3 or the body frame 2 near the center shaft R1; a guide member 7 attached to the body frame 2; and a wheel drive rod 8 engaged with the guide member 7 so as to be slidable along its center shaft and also engaged with the kick rod 6 so as to move along the center shaft in conjunction with movement of the kick rod 6 resulting from a foot pedaling operation. The wheel drive rod 8 has a drive pawl that rotates and drives the wheel 3 by pushing the rim teeth 3b in a tangential direction of the wheel 3 in conjunction with movement of the kick rod 6 resulting from a foot pedaling operation.SELECTED DRAWING: Figure 1
【課題】従来の足踏み式自転車に比べて小さなトルクで容易に動かすことが可能な足踏み式自転車を提供する。【解決手段】足踏み式自転車1は、本体フレーム2と、環状のリム3aおよびリム3aの外周部に周方向に沿って設けられた複数のリム歯3bを有する車輪3と、一端に足踏みペダル5が設けられ、他端が車輪3の中心軸R1または中心軸R1の近傍における本体フレーム2に枢動可能に取り付けられたキックロッド6と、本体フレーム2に取り付けられたガイド部材7と、ガイド部材7にその中心軸に沿って摺動可能に係合し、足踏み動作によるキックロッド6の動きに連動して中心軸に沿って動くようにキックロッド6に係合した車輪駆動ロッド8とを備え、車輪駆動ロッド8は、足踏み動作によるキックロッド6の動きに連動してリム歯3bを車輪3の接線方向に押すことにより車輪3を回転駆動する駆動爪部を有する。【選択図】図1
FOOT-OPERATED BICYCLE
足踏み式自転車
13.10.2016
Patent
Elektronische Ressource
Japanisch
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |
SPLIT SADDLE DESIGNED FOR A FOOT OPERATED BICYCLE OR TRICYCLE
Europäisches Patentamt | 2017
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