Device for driving forward bicycle

PURPOSE: A forward drive unit of a bicycle is provided to rotate pedals forward and simultaneously move the bicycle forward, by a reverse rotation of the pedals without operation of a special lever. CONSTITUTION: A forward drive unit of a bicycle comprises a forward rotation drive unit and a reverse...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KIM, SANG NYEON, LEE, SU YONG
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	BLASTING CYCLES ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS POWERED PROPULSION OF SLEDGES OR RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES THERMAL INSULATION IN GENERAL TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE: A forward drive unit of a bicycle is provided to rotate pedals forward and simultaneously move the bicycle forward, by a reverse rotation of the pedals without operation of a special lever. CONSTITUTION: A forward drive unit of a bicycle comprises a forward rotation drive unit and a reverse rotation drive unit. In the forward rotation drive unit, a ratchet(11b) is disposed to the periphery of a driving plate(11a) fixed to a pedal shaft(5) by a key(8), and only forward rotating force of the pedal shaft is transmitted to a driving sprocket wheel(4) by a ratchet wheel(12) fixed to a side of the driving sprocket wheel. The reverse rotation drive unit comprises a rotational direction conversion unit, rotating a driving gear(34) formed into one body with a driving plate(21a) in the reverse direction of the rotational direction of the pedal shaft by receiving the rotational force of a fixed gear(31) installed to the pedal shaft; the driving plate equipped with a ratchet(21b) and formed into one body with the driving gear; and a ratchet wheel(22) and fixed to the other side of the driving sprocket wheel and interlocked with the ratchet. The bicycle is driven forward regardless of the rotational direction of the pedal shaft. 본 발명은 자전거의 구동장치에 관한 것으로서, 특히 자전거 페달의 역회전 구동시에도 자전거가 전진구동이 되도록 하는 자전거 전진구동장치에 관한 것이다. 본 발명의 자전거 전진구동장치는, 페달축(5)에 고정되어 페달 암(2a,2b)의 정방향 회전력을 스프로킷 휠(4)에 전달하는 정회전 구동부(100)와, 페달축(5)에 고정되어 페달 암(2a,2b)의 역방향 회전력을 정방향으로 변환하는 회전방향 변환부(230)에 의하여 스프로킷 휠(4)을 정방향으로 회전시키는 역회전 구동부(200)로 구성되어 이루어지는 것을 특징으로 한다. 본 발명은 페달을 역방향으로 회전시키는 것만으로도 페달의 정회전시와 동일하게 자전거를 전진 구동시킬 수 있으며, 주행 도중에 페달을 정지시키더라도 자전거의 주행에 전혀 방해를 주지 않으며, 자전거를 끌고 갈 때에도 쉽게 끌 수 있다.