GB920185A - Derailleur gear for bicycles - Google Patents

Derailleur gear for bicycles

Info

Publication number
GB920185A
GB920185A GB3644960A GB3644960A GB920185A GB 920185 A GB920185 A GB 920185A GB 3644960 A GB3644960 A GB 3644960A GB 3644960 A GB3644960 A GB 3644960A GB 920185 A GB920185 A GB 920185A
Authority
GB
United Kingdom
Prior art keywords
bicycles
oct
fork
chain
arm
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
GB3644960A
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
Publication of GB920185A publication Critical patent/GB920185A/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
    • B62M9/135—Mounting the derailleur on the frame
    • 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
    • B62M25/00—Actuators for gearing speed-change mechanisms specially adapted for cycles
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Transmission Devices (AREA)

Abstract

920,185. Cycle &c. driving mechanisms. T. CAMPAGNOLO. Oct. 24, 1960 [Oct. 23, 1959; July 9, 1960], No. 36449/60. Class 136(2) [Also in Group XXIV] In a change-speed for bicycles the chain 14 is shifted on to either one of two pedal crank sprockets by a pressed-metal fork 13 carried wholly on the chain side of the frame seat tube 5 by two pivoted arms 11, 12 which, together with a mounting-clip 1 and the fork 13 form an articulated parallelogram operated by a control cable 22 acting on an extension 20 of the arm 11 in opposition to a return spring 28 disposed around the arm pivot 18. The anchor end of the spring has a hook 29 by which it can be released from its abutment 10.
GB3644960A 1959-10-23 1960-10-24 Derailleur gear for bicycles Expired GB920185A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1766559 1959-10-23
IT1213660 1960-07-09

Publications (1)

Publication Number Publication Date
GB920185A true GB920185A (en) 1963-03-06

Family

ID=26326480

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3644960A Expired GB920185A (en) 1959-10-23 1960-10-24 Derailleur gear for bicycles

Country Status (2)

Country Link
CH (1) CH375617A (en)
GB (1) GB920185A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3730012A (en) * 1970-06-08 1973-05-01 L Juy Speed-change mechanism for a bicycle
EP1780114A3 (en) * 2005-10-25 2008-06-25 SRAM Deutschland GmbH Front derailleur

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3730012A (en) * 1970-06-08 1973-05-01 L Juy Speed-change mechanism for a bicycle
JPS5520908B1 (en) * 1970-06-08 1980-06-05
EP1780114A3 (en) * 2005-10-25 2008-06-25 SRAM Deutschland GmbH Front derailleur
US8439779B2 (en) 2005-10-25 2013-05-14 Sram Deutschland Gmbh Front derailleur

Also Published As

Publication number Publication date
CH375617A (en) 1964-02-29

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