[go: up one dir, main page]

IT1148247B - Bicycle oscillating pedal drive providing variable ratios - Google Patents

Bicycle oscillating pedal drive providing variable ratios

Info

Publication number
IT1148247B
IT1148247B IT49402/80A IT4940280A IT1148247B IT 1148247 B IT1148247 B IT 1148247B IT 49402/80 A IT49402/80 A IT 49402/80A IT 4940280 A IT4940280 A IT 4940280A IT 1148247 B IT1148247 B IT 1148247B
Authority
IT
Italy
Prior art keywords
bicycle
pedal drive
providing variable
variable ratios
drive providing
Prior art date
Application number
IT49402/80A
Other languages
Italian (it)
Other versions
IT8049402A0 (en
Inventor
Boris Efros
Original Assignee
Boris Efros
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Boris Efros filed Critical Boris Efros
Priority to IT49402/80A priority Critical patent/IT1148247B/en
Publication of IT8049402A0 publication Critical patent/IT8049402A0/en
Application granted granted Critical
Publication of IT1148247B publication Critical patent/IT1148247B/en

Links

Landscapes

  • Structure Of Transmissions (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Transmission Devices (AREA)

Abstract

A pair of pedal levers are pivotally mounted near their centres, carrying pedals on their front ends, and coupled to driving chains at their rear ends. These driving chains engage a toothed gear wheel on each side of the hub. These wheels transmit power to the hub and hence to the road wheel via unidirectional clutches. The power ratio is varied by changing the distances between the chain mountings and the pedal lever pivots.
IT49402/80A 1980-08-01 1980-08-01 Bicycle oscillating pedal drive providing variable ratios IT1148247B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT49402/80A IT1148247B (en) 1980-08-01 1980-08-01 Bicycle oscillating pedal drive providing variable ratios

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT49402/80A IT1148247B (en) 1980-08-01 1980-08-01 Bicycle oscillating pedal drive providing variable ratios

Publications (2)

Publication Number Publication Date
IT8049402A0 IT8049402A0 (en) 1980-08-01
IT1148247B true IT1148247B (en) 1986-11-26

Family

ID=11270592

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49402/80A IT1148247B (en) 1980-08-01 1980-08-01 Bicycle oscillating pedal drive providing variable ratios

Country Status (1)

Country Link
IT (1) IT1148247B (en)

Also Published As

Publication number Publication date
IT8049402A0 (en) 1980-08-01

Similar Documents

Publication Publication Date Title
EP0088448A3 (en) Propulsion and speed change mechanism for lever propelled bicycles
US4479660A (en) Two wheel synchronously driven bicycle
DE3378625D1 (en) Tricycle
ES1013921U (en) Bicycle with traction on both wheels
KR970042078A (en) Bicycle forward drive
US3827705A (en) Tricycle drive train
IT1148247B (en) Bicycle oscillating pedal drive providing variable ratios
AU558079B2 (en) Saddle/pedal-operated cycle
WO1979000953A1 (en) Tricycle
GB1293296A (en) Velocipede
KR880000859Y1 (en) Propulsion device of bicycle
FR2412454A1 (en) Transmission system for bicycle - has twin pivoted levers with pivoted rear rods and cranks coupled to chain drive
GB2093780A (en) Transmission for vehicles having two power sources
KR200255796Y1 (en) Power driving device of bicycle
RU2028243C1 (en) Vehicle drive
ES2077636T3 (en) POWER TRANSMISSION.
CN2238778Y (en) Bicycle with large and small wheel
ES291208U (en) Transmission for front wheel traction of bikes (Machine-translation by Google Translate, not legally binding)
SE8304271D0 (en) CYLINDER DRIVER
ATE372253T1 (en) CHAINLESS DRIVE DEVICE FOR BICYCLE
JPH01247291A (en) Bicycle with friction wheel for power transmission
ES267976U (en) Transmission for tandem bicycles
RO116471B1 (en) Tricycle
CN2193317Y (en) Speed variator of bicycle
KR19990080271A (en) Bicycles with overlapping chain drive means by multiple coaxial sprockets