PEDAL CRANK TELESCOPING BICYCLE

Each of pedal cranks (4) and (4) of a bicycle, comprising a main crank (41) of which base end is fixed to a crank pin (31) which passes through the center of a large gear (3) around which a chain (32) is passed and an auxiliary crank (42) which is close-fitted longitudinally slidably to the main cra...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	SUMITOMO, YOSHIYUKI
Format:	Patent
Sprache:	eng ; fre ; jpn
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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