FR832100A - Bottom bracket mechanism for chain driven bicycles - Google Patents

Bottom bracket mechanism for chain driven bicycles

Info

Publication number
FR832100A
FR832100A FR832100DA FR832100A FR 832100 A FR832100 A FR 832100A FR 832100D A FR832100D A FR 832100DA FR 832100 A FR832100 A FR 832100A
Authority
FR
France
Prior art keywords
bottom bracket
chain driven
bracket mechanism
driven bicycles
bicycles
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.)
Expired
Application number
Other languages
French (fr)
Inventor
Alfred Bergundthal
Eugen Fischer
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 filed Critical
Application granted granted Critical
Publication of FR832100A publication Critical patent/FR832100A/en
Expired 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
    • B62M1/26—Rider propulsion of wheeled vehicles with reciprocating levers, e.g. foot levers characterised by rotary cranks combined with reciprocating levers
    • 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
    • B62M3/00—Construction of cranks operated by hand or foot
    • B62M2003/006—Crank arrangements to overcome dead points

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
FR832100D 1937-11-02 1938-01-15 Bottom bracket mechanism for chain driven bicycles Expired FR832100A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH832100X 1937-11-02

Publications (1)

Publication Number Publication Date
FR832100A true FR832100A (en) 1938-09-20

Family

ID=4540394

Family Applications (1)

Application Number Title Priority Date Filing Date
FR832100D Expired FR832100A (en) 1937-11-02 1938-01-15 Bottom bracket mechanism for chain driven bicycles

Country Status (1)

Country Link
FR (1) FR832100A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2806371A1 (en) * 2000-03-15 2001-09-21 Jim Jose Boyard Cycle pedal gear system comprises two crank pedal mechanism symmetrically mounted around rotational axis and pedal path modified during rotation into asymmetrical path

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2806371A1 (en) * 2000-03-15 2001-09-21 Jim Jose Boyard Cycle pedal gear system comprises two crank pedal mechanism symmetrically mounted around rotational axis and pedal path modified during rotation into asymmetrical path

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