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IT1246521B - Bicicletta con serie di moltipliche e cambio anteriore di velocita'. - Google Patents

Bicicletta con serie di moltipliche e cambio anteriore di velocita'.

Info

Publication number
IT1246521B
IT1246521B ITMO910018A ITMO910018A IT1246521B IT 1246521 B IT1246521 B IT 1246521B IT MO910018 A ITMO910018 A IT MO910018A IT MO910018 A ITMO910018 A IT MO910018A IT 1246521 B IT1246521 B IT 1246521B
Authority
IT
Italy
Prior art keywords
chain
bicycle
multiples
series
derailleur
Prior art date
Application number
ITMO910018A
Other languages
English (en)
Inventor
Giuseppe Gabrielli
Original Assignee
Giuseppe Gabrielli
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 Giuseppe Gabrielli filed Critical Giuseppe Gabrielli
Priority to ITMO910018A priority Critical patent/IT1246521B/it
Publication of ITMO910018A0 publication Critical patent/ITMO910018A0/it
Priority to PCT/IT1992/000012 priority patent/WO1992013751A1/en
Priority to DE69200958T priority patent/DE69200958T2/de
Priority to AU12720/92A priority patent/AU1272092A/en
Priority to EP92905480A priority patent/EP0571492B1/en
Publication of ITMO910018A1 publication Critical patent/ITMO910018A1/it
Application granted granted Critical
Publication of IT1246521B publication Critical patent/IT1246521B/it

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
    • B62M9/134—Mechanisms for shifting laterally
    • B62M9/1344—Mechanisms for shifting laterally limiting or positioning the movement
    • B62M9/1348—Mechanisms for shifting laterally limiting or positioning the movement characterised by the use of biasing means, e.g. springs; Arrangements thereof
    • 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
    • B62M9/134—Mechanisms for shifting laterally
    • B62M9/1342—Mechanisms for shifting laterally characterised by the linkage mechanisms
    • 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
    • B62M9/136—Chain guides; Mounting thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
  • Gears, Cams (AREA)

Abstract

La bicicletta, idonea all'impiego sta turistico che sportivo, o speciale da montagna, consente di meglio graduare sforzo del ciclista in modo da ottenerne il miglior rendimento atletico in funzione delle sue contingenti condizioni fisiche; essa é munita di cambio anteriore di velocità per il deragliamento della catena sulla serie di moltipliche anteriori, costituita da due o più moltipliche, almeno una delle quali differisca dalla moltiplica inizialmente impegnata dalla catena per un ristretto numero di denti; il cambio anteriore essendo costituito da un parallelogramma articolato (23, 24, 36, D) munito di coppia di ali deragliatrici (Al, A2), non sfalsate in altezza, aventi profilo ad arco di corona circolare rastremata all'indietro oppure ad "L" rivolta verso il basso all'indietro; alla biella di detto parallelogramma articolato potendo essere articolato un braccio oscillante supportante a rotazione, alla sua estremità posteriore, un dispositivo di guida della catena costituito da coppia di rotelle bilateralmente contrapposte in verticale; il dispositivo deragliatore potendo essere costituito anche da un dispositivo elastico oscillante in un piano verticale posteriormente provvisto di rotella dentata inferiormente ingranante con la catena.
ITMO910018A 1991-02-11 1991-02-11 Bicicletta con serie di moltipliche e cambio anteriore di velocita'. IT1246521B (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ITMO910018A IT1246521B (it) 1991-02-11 1991-02-11 Bicicletta con serie di moltipliche e cambio anteriore di velocita'.
PCT/IT1992/000012 WO1992013751A1 (en) 1991-02-11 1992-02-10 A bicycle with multiplying gears and front gearshift
DE69200958T DE69200958T2 (de) 1991-02-11 1992-02-10 Vorderer umwerfer fuer eine fahrradkettenschaltung.
AU12720/92A AU1272092A (en) 1991-02-11 1992-02-10 A bicycle with multiplying gears and front gearshift
EP92905480A EP0571492B1 (en) 1991-02-11 1992-02-10 A bicycle with multiplying gears and front gearshift

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMO910018A IT1246521B (it) 1991-02-11 1991-02-11 Bicicletta con serie di moltipliche e cambio anteriore di velocita'.

Publications (3)

Publication Number Publication Date
ITMO910018A0 ITMO910018A0 (it) 1991-02-11
ITMO910018A1 ITMO910018A1 (it) 1992-08-11
IT1246521B true IT1246521B (it) 1994-11-24

Family

ID=11384866

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMO910018A IT1246521B (it) 1991-02-11 1991-02-11 Bicicletta con serie di moltipliche e cambio anteriore di velocita'.

Country Status (5)

Country Link
EP (1) EP0571492B1 (it)
AU (1) AU1272092A (it)
DE (1) DE69200958T2 (it)
IT (1) IT1246521B (it)
WO (1) WO1992013751A1 (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4242310A1 (de) * 1992-07-03 1994-01-05 Marcus Abele Kettenradadapter für Fahrräder
US6045470A (en) * 1998-02-06 2000-04-04 Trek Bicycle Corporation Front derailleur with chainline controlling idler cog
US6923740B2 (en) * 2001-11-26 2005-08-02 Shimano Inc. Front derailleur for a bicycle
DE20216235U1 (de) * 2002-10-22 2004-03-04 Canyon Bicycles Gmbh Umwerferschelle
DE10260565B4 (de) * 2002-12-21 2016-09-15 Sram Deutschland Gmbh Zahnkranzpaket
TWI385105B (zh) * 2009-11-02 2013-02-11 Chang Hui Lin 多連桿式前變速器
FR3039497B1 (fr) * 2015-07-27 2017-09-01 Ntn-Snr Roulements Derailleur de changement de plateau et kit d'assistance d'entrainement auxiliaire motorise d'une chaine de cycle associe
FR3039495B1 (fr) * 2015-07-27 2017-09-01 Ntn-Snr Roulements Kit d'assistance d'entrainement d'une chaine de cycle, et cycle associe

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE901146C (de) * 1943-08-13 1954-01-07 Fichtel & Sachs Ag Spannvorrichtung fuer Ketten, insbesondere von Fahrraedern
FR971867A (fr) * 1948-09-21 1951-01-23 Dispositif de changement de vitesses pour cycles ou autres véhicules analogues
FR1145881A (fr) * 1956-03-20 1957-10-30 Perfectionnements aux changements de vitesses et tendeurs de chaîne
FR2482039A1 (fr) * 1980-05-09 1981-11-13 Simplex Ets Dispositif de fixation d'accessoires, en particulier des changements de vitesse au pedalier, sur les tubes de cadre de bicyclettes et vehicules similaires
FR2499496A1 (fr) * 1981-02-12 1982-08-13 Hetru Marcel Transmission pour cycles
GB2160272B (en) * 1984-06-14 1988-12-21 George Hilbert Parkinson A 100 speed drive system for bicycles
FR2640931A1 (en) * 1988-12-27 1990-06-29 Sachs Ind Sa Huret Maillard Re Dérailleur for a bicycle front crank gear

Also Published As

Publication number Publication date
EP0571492A1 (en) 1993-12-01
WO1992013751A1 (en) 1992-08-20
DE69200958T2 (de) 1995-07-06
EP0571492B1 (en) 1994-12-21
AU1272092A (en) 1992-09-07
ITMO910018A0 (it) 1991-02-11
ITMO910018A1 (it) 1992-08-11
DE69200958D1 (de) 1995-02-02

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19960210