BICYCLE DRIVE CRANK PEDAL ANGLE ADVANCING DEVICE

PROBLEM TO BE SOLVED: To provide a bicycle drive crank pedal angle advancing device capable of reducing the invalid labor in the vicinity of a top dead center of a pedal when a bicycle travels, and having the function for enjoying the efficient and comfortable cycling. SOLUTION: The bicycle drive cr...

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Bibliographische Detailangaben
1. Verfasser:	NAGAYAMA YASUKAZU
Format:	Patent
Sprache:	eng
Schlagworte:	CYCLES LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS PERFORMING OPERATIONS POWERED PROPULSION OF SLEDGES OR RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a bicycle drive crank pedal angle advancing device capable of reducing the invalid labor in the vicinity of a top dead center of a pedal when a bicycle travels, and having the function for enjoying the efficient and comfortable cycling. SOLUTION: The bicycle drive crank pedal angle advancing device makes the angle advance of the top dead center of a pedal by dividing a crank shaft into right and left portions 5, 6, and connecting them to offset gears 7B, 7C on a coupling shaft 8, and offset gears 7A, 7D on the crank shafts 5A, 5B. COPYRIGHT: (C)2007,JPO&INPIT