GB787446A - Improvements in or relating to derailleur type change speed devices for cycles and like vehicles - Google Patents

Improvements in or relating to derailleur type change speed devices for cycles and like vehicles

Info

Publication number
GB787446A
GB787446A GB570/56A GB57056A GB787446A GB 787446 A GB787446 A GB 787446A GB 570/56 A GB570/56 A GB 570/56A GB 57056 A GB57056 A GB 57056A GB 787446 A GB787446 A GB 787446A
Authority
GB
United Kingdom
Prior art keywords
chain
carrier
shift
fork
sprockets
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
GB570/56A
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 GB787446A publication Critical patent/GB787446A/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
    • B62M9/134—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
    • 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

Landscapes

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

Abstract

787,446. Chain-shift change-speed gear. JUY, L. C. H. Jan. 6, 1956 [Jan. 6, 1955], No. 570/56. Class 80 (2). To cater for different chain widths and numbers of rear hub sprockets in a chain-shift gear on a cycle, a shift-fork for shifting the chain on to either one of two different-sized pedal-crank sprockets is in two flanged parts 1, 2, secured together to give adjustable lateral spacing by screws 3 passing through inclined slots 2<SP>2</SP> in one part 2. To permit considerable chain inclination as for a large number of hub sprockets 5, Fig. 7, the spacing of the parts 1, 2 may, as shown, be greater at the rear. The shift-fork 1, 2 is carried on pins 7, 8 slidable in a carrier 6, the former, 7, in an adjustable push 9 which limits inward movement by abutment with a shoulder on the pin 7, the latter pin 8 being adjustably secured to a sliding sleeve 12 which limits outward movement. A control cable 10 draws the fork 1, 2 inwards against a return spring 13. The carrier 6 is attached to a frame tube by two half-collars 15 riveted at 151 to the carrier 6 and hooked at 15<SP>2</SP> to ends of a single complementary half-collar 16, attached by a clamping screw 17 to the carrier 6.
GB570/56A 1955-01-06 1956-01-06 Improvements in or relating to derailleur type change speed devices for cycles and like vehicles Expired GB787446A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR787446X 1955-01-06

Publications (1)

Publication Number Publication Date
GB787446A true GB787446A (en) 1957-12-11

Family

ID=9218953

Family Applications (1)

Application Number Title Priority Date Filing Date
GB570/56A Expired GB787446A (en) 1955-01-06 1956-01-06 Improvements in or relating to derailleur type change speed devices for cycles and like vehicles

Country Status (1)

Country Link
GB (1) GB787446A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5446448U (en) * 1977-09-05 1979-03-30
US9132885B2 (en) 2008-09-29 2015-09-15 Sram, Llc Bicycle derailleur

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5446448U (en) * 1977-09-05 1979-03-30
JPS558706Y2 (en) * 1977-09-05 1980-02-26
US9132885B2 (en) 2008-09-29 2015-09-15 Sram, Llc Bicycle derailleur
EP2669169B1 (en) 2008-09-29 2016-01-13 SRAM Deutschland GmbH Gear changer for a bicycle

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