FR974415A - Multiplier of the forces produced on the cranks for the transmission of a movement, applied to cycles and the like - Google Patents

Multiplier of the forces produced on the cranks for the transmission of a movement, applied to cycles and the like

Info

Publication number
FR974415A
FR974415A FR974415DA FR974415A FR 974415 A FR974415 A FR 974415A FR 974415D A FR974415D A FR 974415DA FR 974415 A FR974415 A FR 974415A
Authority
FR
France
Prior art keywords
cranks
multiplier
cycles
movement
transmission
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
Ettore Frisiani
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 FR974415A publication Critical patent/FR974415A/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
    • B62M9/08—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving eccentrically- mounted or elliptically-shaped driving or driven wheel; with expansible driving or driven wheel
    • 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
    • B62M2009/002—Non-circular chain rings or sprockets

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
FR974415D 1948-10-28 1948-10-28 Multiplier of the forces produced on the cranks for the transmission of a movement, applied to cycles and the like Expired FR974415A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR974415T 1948-10-28

Publications (1)

Publication Number Publication Date
FR974415A true FR974415A (en) 1951-02-22

Family

ID=9517462

Family Applications (1)

Application Number Title Priority Date Filing Date
FR974415D Expired FR974415A (en) 1948-10-28 1948-10-28 Multiplier of the forces produced on the cranks for the transmission of a movement, applied to cycles and the like

Country Status (1)

Country Link
FR (1) FR974415A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57199191U (en) * 1981-06-15 1982-12-17
JPS58211985A (en) * 1982-06-01 1983-12-09 株式会社シマノ Gear crank device for bicycle
US4522610A (en) * 1982-06-01 1985-06-11 Shimano Industrial Company Limited Gear crank apparatus for a bicycle
WO2012010257A1 (en) * 2010-07-23 2012-01-26 Rotor Componentes Tecnológicos S.L. Attachment of an ovoid chainring
WO2013104663A1 (en) 2012-01-11 2013-07-18 Rotor Componentes Tecnológicos S.L Crank arm spider improvement for attaching ovoid chainrings

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57199191U (en) * 1981-06-15 1982-12-17
JPS6231356Y2 (en) * 1981-06-15 1987-08-11
JPS58211985A (en) * 1982-06-01 1983-12-09 株式会社シマノ Gear crank device for bicycle
US4522610A (en) * 1982-06-01 1985-06-11 Shimano Industrial Company Limited Gear crank apparatus for a bicycle
JPS6243906B2 (en) * 1982-06-01 1987-09-17 Shimano Industrial Co
WO2012010257A1 (en) * 2010-07-23 2012-01-26 Rotor Componentes Tecnológicos S.L. Attachment of an ovoid chainring
CN103003140A (en) * 2010-07-23 2013-03-27 罗特尔部件技术公司 Attachment of an ovoid chainring
US9005062B2 (en) 2010-07-23 2015-04-14 Rotor Componentes Technologicos S.L. Attachment of an ovoid chainring
CN103003140B (en) * 2010-07-23 2015-10-21 罗特尔部件技术公司 Be connected to the improvement of the avette bicycle crank of crank arm
WO2013104663A1 (en) 2012-01-11 2013-07-18 Rotor Componentes Tecnológicos S.L Crank arm spider improvement for attaching ovoid chainrings

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