GB1499398A - Push flange construction for a pivotal roller system for a speed change mechanism for a cycle - Google Patents

Push flange construction for a pivotal roller system for a speed change mechanism for a cycle

Info

Publication number
GB1499398A
GB1499398A GB2433975A GB2433975A GB1499398A GB 1499398 A GB1499398 A GB 1499398A GB 2433975 A GB2433975 A GB 2433975A GB 2433975 A GB2433975 A GB 2433975A GB 1499398 A GB1499398 A GB 1499398A
Authority
GB
United Kingdom
Prior art keywords
plate
chamfer
chain
sprocket
rivets
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
GB2433975A
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 GB1499398A publication Critical patent/GB1499398A/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
    • B62M9/126—Chain guides; Mounting thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Transmissions By Endless Flexible Members (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
  • Gears, Cams (AREA)
  • General Details Of Gearings (AREA)

Abstract

1499398 Chain-shift change-speed gear L C H JUY 5 June 1975 [17 June 1974] 24339/75 Heading F2D In a derailleur type gear for bicycles shifting of the chain M in the direction towards a larger rear-wheel sprocket is assisted by an arcuate extension la formed integrally with or attached to one of the two side plates 1, J, which, together with at least one jockey sprocket K, constitute an assembly pivotally carried by a bracket H of a parallelogram linkage E, F, G, H. The extension 1a, which has a chamfer 1c of flat, as shown, or slightly convex profile, is disposed as close as possible to the sprockets B<SP>1</SP> ... B<SP>4</SP> consistent with clearing the largest sprocket B<SP>1</SP> and is of sufficient extent to engage two rivets of the chain in any angular position of the assembly 1, J about its pivotal connection with the bracket H. The plate 1 may be made of metal or other suitable material by moulding, stamping, &c. When the plate is of metal the part on which the chamfer is formed may be surface hardened or coated with a plastics material, or the entire plate may be so coated. In a modification, the part with the chamfer 2c, Fig. 9, is formed as a separate element, e.g. of plastics material, and assembled to the plate N so that a groove 2d receives a rim N<SP>2</SP> of the plate and a hole 2h receives a bolt L which passes through the plate N, carries a jockey sprocket K, and connects with the other plate J. The separate chamfered part may alternatively be of bifurcated form to straddle the plate N to which it is secured by snap fittings or rivets, or it may consist of two half portions assembled to opposite sides of the plate.
GB2433975A 1974-06-17 1975-06-05 Push flange construction for a pivotal roller system for a speed change mechanism for a cycle Expired GB1499398A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7421783A FR2274496A1 (en) 1974-06-17 1974-06-17 PUSH-FLANGE FOR ROLLER SWIVEL REEL SYSTEM SPEED CHANGES FOR CYCLES, AND SPEED CHANGES THUS EQUIPPED

Publications (1)

Publication Number Publication Date
GB1499398A true GB1499398A (en) 1978-02-01

Family

ID=9140404

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2433975A Expired GB1499398A (en) 1974-06-17 1975-06-05 Push flange construction for a pivotal roller system for a speed change mechanism for a cycle

Country Status (6)

Country Link
JP (1) JPS51137242A (en)
DE (1) DE2521642A1 (en)
ES (1) ES438414A1 (en)
FR (1) FR2274496A1 (en)
GB (1) GB1499398A (en)
IT (1) IT1038960B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4198874A (en) * 1977-05-20 1980-04-22 Shimano Industrial Company Limited Derailleur for bicycles and similar vehicles
JPS5631511Y2 (en) * 1978-04-20 1981-07-27
FR2454954A1 (en) * 1979-04-23 1980-11-21 Huret Roger DERAILLEUR FOR CYCLE
US4612004A (en) * 1983-08-02 1986-09-16 Shimano Industrial Company Limited Rear derailleur for a bicycle
JPS6136490U (en) * 1984-08-08 1986-03-06 株式会社シマノ bicycle rear derailleur
JPS621686A (en) * 1985-06-25 1987-01-07 株式会社シマノ Derailer for bicycle
ITTO20001124A1 (en) * 2000-12-01 2002-06-01 Campagnolo Srl ROCKER GROUP FOR THE REAR DERAILLEUR OF A BICYCLE.
TW202239657A (en) * 2021-03-26 2022-10-16 德商矢倫德國股份有限公司 Chain-guiding pulley for bicycle derailleur, bicycle derailleur and bicycle drivetrain

Also Published As

Publication number Publication date
JPS51137242A (en) 1976-11-27
FR2274496B1 (en) 1978-10-20
IT1038960B (en) 1979-11-30
FR2274496A1 (en) 1976-01-09
ES438414A1 (en) 1977-02-01
DE2521642A1 (en) 1976-01-02

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Legal Events

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