FR3128690B1 - Dispositif de changement de rapport de réduction - Google Patents

Dispositif de changement de rapport de réduction Download PDF

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Publication number
FR3128690B1
FR3128690B1 FR2111624A FR2111624A FR3128690B1 FR 3128690 B1 FR3128690 B1 FR 3128690B1 FR 2111624 A FR2111624 A FR 2111624A FR 2111624 A FR2111624 A FR 2111624A FR 3128690 B1 FR3128690 B1 FR 3128690B1
Authority
FR
France
Prior art keywords
dcrr
teeth
change device
reduction gear
gear change
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.)
Active
Application number
FR2111624A
Other languages
English (en)
Other versions
FR3128690A1 (fr
Inventor
Jean-François Debril
Antoine Eon
Loïc Freche
Michael Beau
Mathieu Domalain
François Durand
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.)
Creps De Poitiers
Centre National de la Recherche Scientifique CNRS
Universite de Poitiers
Original Assignee
Creps De Poitiers
Centre National de la Recherche Scientifique CNRS
Universite de Poitiers
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 Creps De Poitiers, Centre National de la Recherche Scientifique CNRS, Universite de Poitiers filed Critical Creps De Poitiers
Priority to FR2111624A priority Critical patent/FR3128690B1/fr
Priority to PCT/EP2022/080490 priority patent/WO2023078889A1/fr
Priority to EP22813207.2A priority patent/EP4426603A1/fr
Publication of FR3128690A1 publication Critical patent/FR3128690A1/fr
Application granted granted Critical
Publication of FR3128690B1 publication Critical patent/FR3128690B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B62M9/105—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 involving front sprocket chain-wheels engaged by the chain, belt or the like
    • 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
    • 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
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/12—Toothed members; Worms with body or rim assembled out of detachable parts
    • 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
    • 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
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/30—Chain-wheels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Retarders (AREA)
  • Transmissions By Endless Flexible Members (AREA)

Abstract

« Dispositif de changement de rapport de réduction » Dispositif de changement de rapport de réduction (1), dit DCRR, pour système de transmission mécanique à chaine. Le DCRR (1) comprend une denture (2,3). La denture du DCRR (1) comprend une portion (2), dite portion hélicoïdale, formant une hélice dentée s’enroulant autour d’un axe de révolution (5) du DCRR et une portion (3), dite portion circulaire, formant un cercle plan dentée dont le centre coïncide avec l’axe de révolution du DCRR. La portion hélicoïdale (2) de la denture s’étend depuis une terminaison distale (4) de la denture du DCRR (1) vers la portion circulaire (3) de la denture. La portion circulaire (3) de la denture du DCRR 1 forme une terminaison proximale (3) de la denture du DCRR. Figure pour l’abrégé : Figure 1
FR2111624A 2021-11-02 2021-11-02 Dispositif de changement de rapport de réduction Active FR3128690B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR2111624A FR3128690B1 (fr) 2021-11-02 2021-11-02 Dispositif de changement de rapport de réduction
PCT/EP2022/080490 WO2023078889A1 (fr) 2021-11-02 2022-11-02 Dispositif de changement de rapport de réduction
EP22813207.2A EP4426603A1 (fr) 2021-11-02 2022-11-02 Dispositif de changement de rapport de réduction

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2111624 2021-11-02
FR2111624A FR3128690B1 (fr) 2021-11-02 2021-11-02 Dispositif de changement de rapport de réduction

Publications (2)

Publication Number Publication Date
FR3128690A1 FR3128690A1 (fr) 2023-05-05
FR3128690B1 true FR3128690B1 (fr) 2024-02-16

Family

ID=79601997

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2111624A Active FR3128690B1 (fr) 2021-11-02 2021-11-02 Dispositif de changement de rapport de réduction

Country Status (3)

Country Link
EP (1) EP4426603A1 (fr)
FR (1) FR3128690B1 (fr)
WO (1) WO2023078889A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1567440A1 (ru) * 1988-05-30 1990-05-30 Минский Мотоциклетный И Велосипедный Завод Блок звездочек
CN1057892A (zh) * 1990-07-03 1992-01-15 和林 自动无级变速传动轮
US20110028252A1 (en) * 2009-07-31 2011-02-03 Tzvetan Nedialkov Tzvetkov Universal skip-free derailleur
TW201400359A (zh) * 2012-04-13 2014-01-01 Macneil Bikes Inc 螺旋式自行車鏈輪、鏈輪系統及具鏈輪系統的自行車

Also Published As

Publication number Publication date
EP4426603A1 (fr) 2024-09-11
WO2023078889A1 (fr) 2023-05-11
FR3128690A1 (fr) 2023-05-05

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