GB530913A - Improvements in gear changing mechanism - Google Patents
Improvements in gear changing mechanismInfo
- Publication number
- GB530913A GB530913A GB1963339A GB1963339A GB530913A GB 530913 A GB530913 A GB 530913A GB 1963339 A GB1963339 A GB 1963339A GB 1963339 A GB1963339 A GB 1963339A GB 530913 A GB530913 A GB 530913A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate
- chain
- plungers
- frame
- engage
- 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
-
- 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
- B62M2009/12413—Rear derailleur comprising telescoping mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Transmissions By Endless Flexible Members (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
530,913. Variable - speed chain gearing. WASDELL, W. K. July 5,1939, No. 19633. [Class 80 (ii)] Gear changing mechanism includes a pair of sprockets 3, 4, carried on a plate 1 which is pivotally mounted on the frame 7 and can be locked in a number of fixed positions. The chain 19 passes round the sprockets 3, 4, and one of the gears 20a, 20b or 20c on the bicycle hub 17. The plate 1 is pivoted in a casing 24 on the frame 7 and is urged to the left, Fig. 1, under spring action controlled by a chain 21. The plate 1 carries an arm 8 having a series of holes 11 into any one of which either one of two plungers 12, 13 may engage to lock the plate 1 relatively to the frame 7. The plungers 12, 13, are fixed to spring levers 12a, 13a, which are fixed at one end 15 to the frame 7, and at the other end engage a plunger 18 which protrudes from the hub 17 when the free-wheel is in operation and is withdrawn when the free-wheel is locked as described in Specification 439,839, [Group XXXI]. To change gear, the plunger 18, or other external means, moves the plungers 12, 13, to release the plate 8 and the chain 21 is operated to permit or cause sideways movement of the chain 19. A spring 28 secured to the plate 8 tensions the chain 19, and the fingers 12a, 13a, are released to permit one of the plungers 12, 13 to engage the plate 8. In a modification the locking device consists of a slidable sleeve which can be slid to clutch the parts 8, 24 together.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1963339A GB530913A (en) | 1939-07-05 | 1939-07-05 | Improvements in gear changing mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1963339A GB530913A (en) | 1939-07-05 | 1939-07-05 | Improvements in gear changing mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
GB530913A true GB530913A (en) | 1940-12-24 |
Family
ID=10132613
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1963339A Expired GB530913A (en) | 1939-07-05 | 1939-07-05 | Improvements in gear changing mechanism |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB530913A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4132119A (en) * | 1976-04-30 | 1979-01-02 | Shimano Industrial Company Limited | Derailleur for a bicycle |
US4185510A (en) * | 1975-12-02 | 1980-01-29 | Etablissements Le Simplex | Speed change device with detent means |
USRE30524E (en) * | 1974-08-03 | 1981-02-24 | Shimano Industrial Company Limited | Derailleur for a bicycle |
US4283069A (en) * | 1980-02-08 | 1981-08-11 | Citelli Kenneth J | Multiple speed bicycle drive |
-
1939
- 1939-07-05 GB GB1963339A patent/GB530913A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE30524E (en) * | 1974-08-03 | 1981-02-24 | Shimano Industrial Company Limited | Derailleur for a bicycle |
US4185510A (en) * | 1975-12-02 | 1980-01-29 | Etablissements Le Simplex | Speed change device with detent means |
US4132119A (en) * | 1976-04-30 | 1979-01-02 | Shimano Industrial Company Limited | Derailleur for a bicycle |
US4283069A (en) * | 1980-02-08 | 1981-08-11 | Citelli Kenneth J | Multiple speed bicycle drive |
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