GB1376054A - Derailleur for change-speed gears for cycles having several coaxial sprockets - Google Patents

Derailleur for change-speed gears for cycles having several coaxial sprockets

Info

Publication number
GB1376054A
GB1376054A GB1714572A GB1714572A GB1376054A GB 1376054 A GB1376054 A GB 1376054A GB 1714572 A GB1714572 A GB 1714572A GB 1714572 A GB1714572 A GB 1714572A GB 1376054 A GB1376054 A GB 1376054A
Authority
GB
United Kingdom
Prior art keywords
links
pivot
spring
chain
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.)
Expired
Application number
GB1714572A
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 claimed from IT2311472A external-priority patent/IT955158B/en
Publication of GB1376054A publication Critical patent/GB1376054A/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
    • B62M9/121—Rear derailleurs
    • B62M9/124—Mechanisms for shifting laterally
    • B62M9/1244—Mechanisms for shifting laterally limiting or positioning the movement
    • 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
    • B62M9/121—Rear derailleurs
    • B62M9/124—Mechanisms for shifting laterally
    • B62M9/1242—Mechanisms for shifting laterally characterised by the linkage mechanisms

Landscapes

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

Abstract

1376054 Change-speed gear T CAMPAGNOLO 13 April 1972 [13 April 1971] 17145/72 Addition to 1140212 Heading F2D In a chain-shift cycle gear in which parallelogram links 3, 4, lying in a plane at right angles to the drive chain, pivot on an angled plate 2 of folded sheet metal bolted at 9 to a frame-attached member 1, one, 3, of the links is of folded sheet metal, with a cable-attachment lug (10) and movement-limiting screws 12, 13; the other link 4 is of double strip form and has a projection 18 limiting movement of the spring-loaded carrier 6 of the tension and guide sprockets 19; the said folded support part 5, pivoted to the links 3, 4; and the pivot 20 of the sprocket-carrier is on the axis of the lower sprocket 19, and carries a tension spring 23. A spring 7 around the pivot 8 biases the links 3, 4 away from the chain. The bolt heads carry inset initialled display plates.
GB1714572A 1972-04-13 1972-04-13 Derailleur for change-speed gears for cycles having several coaxial sprockets Expired GB1376054A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2311472A IT955158B (en) 1971-04-15 1972-04-13 PROCESS AND MANUFACTURING OF CAR BOXES FOR GASKETS IN PARTICULAR OF ELECTRICAL MEASURING EQUIPMENT

Publications (1)

Publication Number Publication Date
GB1376054A true GB1376054A (en) 1974-12-04

Family

ID=11203930

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1714572A Expired GB1376054A (en) 1972-04-13 1972-04-13 Derailleur for change-speed gears for cycles having several coaxial sprockets

Country Status (1)

Country Link
GB (1) GB1376054A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee