FR1021813A - Chain derailment shifting for bicycles to allow a large variation in the ratio between the different speeds and the automatic alignment of the tension and guide rollers - Google Patents

Chain derailment shifting for bicycles to allow a large variation in the ratio between the different speeds and the automatic alignment of the tension and guide rollers

Info

Publication number
FR1021813A
FR1021813A FR1021813DA FR1021813A FR 1021813 A FR1021813 A FR 1021813A FR 1021813D A FR1021813D A FR 1021813DA FR 1021813 A FR1021813 A FR 1021813A
Authority
FR
France
Prior art keywords
bicycles
shifting
tension
allow
ratio
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
Giovanni Mari
Adolfo Mainardi
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 FR1021813A publication Critical patent/FR1021813A/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
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
    • B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
    • B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
    • B62M9/121—Rear derailleurs
    • B62M9/124—Mechanisms for shifting laterally
    • B62M9/1248—Mechanisms for shifting laterally characterised by the use of biasing means, e.g. springs; Arrangements thereof
    • 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
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
    • B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
    • B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
    • B62M9/121—Rear derailleurs
    • B62M9/124—Mechanisms for shifting laterally

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
FR1021813D 1950-03-07 1950-03-07 Chain derailment shifting for bicycles to allow a large variation in the ratio between the different speeds and the automatic alignment of the tension and guide rollers Expired FR1021813A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1021813T 1950-03-07

Publications (1)

Publication Number Publication Date
FR1021813A true FR1021813A (en) 1953-02-24

Family

ID=9577224

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1021813D Expired FR1021813A (en) 1950-03-07 1950-03-07 Chain derailment shifting for bicycles to allow a large variation in the ratio between the different speeds and the automatic alignment of the tension and guide rollers

Country Status (1)

Country Link
FR (1) FR1021813A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018842A2 (en) * 1979-05-04 1980-11-12 Shimano Industrial Company Limited Cycle derailleur with reduced width
EP0020033A2 (en) * 1979-05-04 1980-12-10 Shimano Industrial Company Limited Cycle derailleur with axially fixed pulley

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018842A2 (en) * 1979-05-04 1980-11-12 Shimano Industrial Company Limited Cycle derailleur with reduced width
EP0020033A2 (en) * 1979-05-04 1980-12-10 Shimano Industrial Company Limited Cycle derailleur with axially fixed pulley
EP0018842A3 (en) * 1979-05-04 1981-01-21 Shimano Industrial Company Limited Cycle derailleur with reduced width
EP0020033A3 (en) * 1979-05-04 1981-01-28 Shimano Industrial Company Limited Cycle derailleur with axially fixed pulley

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