GB1376054A - Derailleur for change-speed gears for cycles having several coaxial sprockets - Google Patents
Derailleur for change-speed gears for cycles having several coaxial sprocketsInfo
- 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
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.
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) |
-
1972
- 1972-04-13 GB GB1714572A patent/GB1376054A/en not_active Expired
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |