FR840541A - Lockable chain tensioner for gear changes by chain shifting for cycles - Google Patents

Lockable chain tensioner for gear changes by chain shifting for cycles

Info

Publication number
FR840541A
FR840541A FR840541DA FR840541A FR 840541 A FR840541 A FR 840541A FR 840541D A FR840541D A FR 840541DA FR 840541 A FR840541 A FR 840541A
Authority
FR
France
Prior art keywords
chain
cycles
lockable
gear changes
shifting
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
Louis Leon Rene Boutellier
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 FR840541A publication Critical patent/FR840541A/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
    • B62M9/131—Front derailleurs

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
FR840541D 1938-07-11 1938-07-11 Lockable chain tensioner for gear changes by chain shifting for cycles Expired FR840541A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR840541T 1938-07-11

Publications (1)

Publication Number Publication Date
FR840541A true FR840541A (en) 1939-04-27

Family

ID=9302883

Family Applications (1)

Application Number Title Priority Date Filing Date
FR840541D Expired FR840541A (en) 1938-07-11 1938-07-11 Lockable chain tensioner for gear changes by chain shifting for cycles

Country Status (1)

Country Link
FR (1) FR840541A (en)

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