FR2426193A1 - Dispositif de transmission a changement de vitesse, notamment pour bicyclette - Google Patents

Dispositif de transmission a changement de vitesse, notamment pour bicyclette

Info

Publication number
FR2426193A1
FR2426193A1 FR7814388A FR7814388A FR2426193A1 FR 2426193 A1 FR2426193 A1 FR 2426193A1 FR 7814388 A FR7814388 A FR 7814388A FR 7814388 A FR7814388 A FR 7814388A FR 2426193 A1 FR2426193 A1 FR 2426193A1
Authority
FR
France
Prior art keywords
pinions
slide
transmission system
speed transmission
radial slots
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.)
Withdrawn
Application number
FR7814388A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 by Individual filed Critical Individual
Priority to FR7814388A priority Critical patent/FR2426193A1/fr
Publication of FR2426193A1 publication Critical patent/FR2426193A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H29/00—Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action
    • F16H29/12—Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action between rotary driving and driven members
    • F16H29/16—Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action between rotary driving and driven members in which the transmission ratio is changed by adjustment of the distance between the axes of the rotary members
    • F16H29/18—Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action between rotary driving and driven members in which the transmission ratio is changed by adjustment of the distance between the axes of the rotary members in which the intermittently-driving members slide along approximately radial guides while rotating with one of the rotary members
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Transmission Devices (AREA)

Abstract

Ce dispositif est caractérisé en ce qu'il comprend un arbre de pédalier, un disque entraîné en rotation par cet arbre et pourvu d'une série de fentes radiales dans lesquelles sont montés des pignons coulissants, une plaque fixée sur un cadre et à l'intérieur par rapport au disque, un coulisseau en forme de châssis et monté extérieurement sur cette plaque de manière coulissante, un organe annulaire fixé à ce coulisseau et portant une crémaillère prévue sur une partie d'une nervure en saillie sur son pourtour extérieur, et un corps annulaire disposé extérieurement autour de cet organe annulaire, et pourvu d'une denture sur son pourtour extérieur et d'une autre sur son pourtour intérieur, des pignons montés librement dans les fentes du disque tout en étant logés dans l'espace compris entre l'organe annulaire et le corps annulaire, le cercle formé par ces pignons étant rendu excentrique par rapport à l'arbre de pédalier en fonction du déplacement du coulisseau, ce qui permet d'obtenir un accroissement ou une réduction de la vitesse de transmission.
FR7814388A 1978-05-16 1978-05-16 Dispositif de transmission a changement de vitesse, notamment pour bicyclette Withdrawn FR2426193A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7814388A FR2426193A1 (fr) 1978-05-16 1978-05-16 Dispositif de transmission a changement de vitesse, notamment pour bicyclette

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7814388A FR2426193A1 (fr) 1978-05-16 1978-05-16 Dispositif de transmission a changement de vitesse, notamment pour bicyclette

Publications (1)

Publication Number Publication Date
FR2426193A1 true FR2426193A1 (fr) 1979-12-14

Family

ID=9208262

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7814388A Withdrawn FR2426193A1 (fr) 1978-05-16 1978-05-16 Dispositif de transmission a changement de vitesse, notamment pour bicyclette

Country Status (1)

Country Link
FR (1) FR2426193A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0258041A2 (fr) * 1986-08-26 1988-03-02 Bando Chemical Industries, Ltd. Transmission à courroie pour bicyclette
FR2731672A1 (fr) * 1995-03-16 1996-09-20 Martin Denis Marie Daniel Variateur automatique de rapport de transmission pour bicyclette
WO1997038893A1 (fr) * 1996-04-16 1997-10-23 John James Jago Systeme d'entrainement a chaine ou a courroie
GB2555931A (en) * 2016-09-12 2018-05-16 Ford Global Tech Llc Continuously variable ratio transmission

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB439540A (en) * 1934-03-09 1935-12-09 Alvaro Vincenzoni Improvements in and relating to change speed gears for cycles
GB633425A (en) * 1942-08-21 1949-12-19 Alvaro Vincenzoni Improvements in change-speed gears for bicycles
FR1078472A (fr) * 1953-02-25 1954-11-18 Dispositif de changement de vitesse progressif, notamment pour cycles, motocycles et analogues
DE927368C (de) * 1951-05-29 1955-05-05 Oskar Selge Anordnung der Tretkurbel am Antriebskettenrad
US3969948A (en) * 1975-08-25 1976-07-20 Pipenhagen Jr Charles A Automatic bicycle transmission
US3995508A (en) * 1975-03-31 1976-12-07 Mesur-Matic Electronics Corporation Automatic bicycle transmission

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB439540A (en) * 1934-03-09 1935-12-09 Alvaro Vincenzoni Improvements in and relating to change speed gears for cycles
GB633425A (en) * 1942-08-21 1949-12-19 Alvaro Vincenzoni Improvements in change-speed gears for bicycles
DE927368C (de) * 1951-05-29 1955-05-05 Oskar Selge Anordnung der Tretkurbel am Antriebskettenrad
FR1078472A (fr) * 1953-02-25 1954-11-18 Dispositif de changement de vitesse progressif, notamment pour cycles, motocycles et analogues
US3995508A (en) * 1975-03-31 1976-12-07 Mesur-Matic Electronics Corporation Automatic bicycle transmission
US3969948A (en) * 1975-08-25 1976-07-20 Pipenhagen Jr Charles A Automatic bicycle transmission

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0258041A2 (fr) * 1986-08-26 1988-03-02 Bando Chemical Industries, Ltd. Transmission à courroie pour bicyclette
EP0258041A3 (en) * 1986-08-26 1989-02-15 Bando Chemical Industries, Ltd. Belt driving apparatus for bicycle
FR2731672A1 (fr) * 1995-03-16 1996-09-20 Martin Denis Marie Daniel Variateur automatique de rapport de transmission pour bicyclette
WO1997038893A1 (fr) * 1996-04-16 1997-10-23 John James Jago Systeme d'entrainement a chaine ou a courroie
GB2555931A (en) * 2016-09-12 2018-05-16 Ford Global Tech Llc Continuously variable ratio transmission

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Legal Events

Date Code Title Description
ST Notification of lapse