FR727193A - Gear shifting device for bicycles - Google Patents

Gear shifting device for bicycles

Info

Publication number
FR727193A
FR727193A FR727193DA FR727193A FR 727193 A FR727193 A FR 727193A FR 727193D A FR727193D A FR 727193DA FR 727193 A FR727193 A FR 727193A
Authority
FR
France
Prior art keywords
bicycles
gear shifting
shifting device
gear
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
Tommaso Nieddu
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 FR727193A publication Critical patent/FR727193A/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)
FR727193D 1930-11-22 1931-11-21 Gear shifting device for bicycles Expired FR727193A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT727193X 1930-11-22

Publications (1)

Publication Number Publication Date
FR727193A true FR727193A (en) 1932-06-14

Family

ID=11315132

Family Applications (1)

Application Number Title Priority Date Filing Date
FR727193D Expired FR727193A (en) 1930-11-22 1931-11-21 Gear shifting device for bicycles

Country Status (1)

Country Link
FR (1) FR727193A (en)

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