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FR2252245A1 - Pedal cycle propulsion mechanism - is operated by vertical movement of riders feet on end of bell crank - Google Patents

Pedal cycle propulsion mechanism - is operated by vertical movement of riders feet on end of bell crank

Info

Publication number
FR2252245A1
FR2252245A1 FR7342087A FR7342087A FR2252245A1 FR 2252245 A1 FR2252245 A1 FR 2252245A1 FR 7342087 A FR7342087 A FR 7342087A FR 7342087 A FR7342087 A FR 7342087A FR 2252245 A1 FR2252245 A1 FR 2252245A1
Authority
FR
France
Prior art keywords
operated
crank
bell crank
vertical movement
movement
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7342087A
Other languages
French (fr)
Other versions
FR2252245B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZMUDA FRANCOIS
Original Assignee
ZMUDA FRANCOIS
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 ZMUDA FRANCOIS filed Critical ZMUDA FRANCOIS
Priority to FR7342087A priority Critical patent/FR2252245A1/en
Publication of FR2252245A1 publication Critical patent/FR2252245A1/en
Application granted granted Critical
Publication of FR2252245B1 publication Critical patent/FR2252245B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M1/00—Rider propulsion of wheeled vehicles
    • B62M1/24—Rider propulsion of wheeled vehicles with reciprocating levers, e.g. foot levers

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Motorcycle And Bicycle Frame (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Handcart (AREA)

Abstract

The movement performed by the rider is a purely stamping movement up and down. The levers can be appreciably larger than those conventionally used, and their axes can be staggered by 6 deg. The propulsion movement can be provided by a system of connecting rods. The system greatly reduces the effort required, or allows a great increase in speed. The levers operated by the rider's feet are bell cranks with a long forward facing horizontal arm and a short downward facing arm connected to a crank. The other end of the crank is connected to the sprocket in place of the usual pedal and there is the usual chain drive to the rear wheel. The fulcrum of the bell crank is near the rear wheel hub.
FR7342087A 1973-11-27 1973-11-27 Pedal cycle propulsion mechanism - is operated by vertical movement of riders feet on end of bell crank Granted FR2252245A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7342087A FR2252245A1 (en) 1973-11-27 1973-11-27 Pedal cycle propulsion mechanism - is operated by vertical movement of riders feet on end of bell crank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7342087A FR2252245A1 (en) 1973-11-27 1973-11-27 Pedal cycle propulsion mechanism - is operated by vertical movement of riders feet on end of bell crank

Publications (2)

Publication Number Publication Date
FR2252245A1 true FR2252245A1 (en) 1975-06-20
FR2252245B1 FR2252245B1 (en) 1976-05-14

Family

ID=9128292

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7342087A Granted FR2252245A1 (en) 1973-11-27 1973-11-27 Pedal cycle propulsion mechanism - is operated by vertical movement of riders feet on end of bell crank

Country Status (1)

Country Link
FR (1) FR2252245A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6843741B2 (en) * 1999-12-30 2005-01-18 Shimano, Inc. Bell crank assembly and mounting bracket for a bicycle hub transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6843741B2 (en) * 1999-12-30 2005-01-18 Shimano, Inc. Bell crank assembly and mounting bracket for a bicycle hub transmission

Also Published As

Publication number Publication date
FR2252245B1 (en) 1976-05-14

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Legal Events

Date Code Title Description
ST Notification of lapse