FR978189A - Gear shifting device for bicycles - Google Patents
Gear shifting device for bicyclesInfo
- Publication number
- FR978189A FR978189A FR978189DA FR978189A FR 978189 A FR978189 A FR 978189A FR 978189D A FR978189D A FR 978189DA FR 978189 A FR978189 A FR 978189A
- Authority
- FR
- France
- Prior art keywords
- bicycles
- gear shifting
- shifting device
- gear
- shifting
- 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
- B62M9/1248—Mechanisms for shifting laterally 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
- B62M25/00—Actuators for gearing speed-change mechanisms specially adapted for cycles
- B62M25/02—Actuators for gearing speed-change mechanisms specially adapted for cycles with mechanical transmitting systems, e.g. cables, levers
- B62M25/04—Actuators for gearing speed-change mechanisms specially adapted for cycles with mechanical transmitting systems, e.g. cables, levers hand actuated
-
- 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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT978189X | 1941-11-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR978189A true FR978189A (en) | 1951-04-10 |
Family
ID=11332829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR978189D Expired FR978189A (en) | 1941-11-27 | 1948-12-24 | Gear shifting device for bicycles |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR978189A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE922929C (en) * | 1952-02-27 | 1955-01-27 | Fichtel & Sachs Ag | Carrier for chain switching devices of bicycles |
DE1225514B (en) * | 1959-10-23 | 1966-09-22 | Campagnolo Tullio | Single-track device for a multi-speed gearshift for bicycles |
EP4197893A1 (en) | 2021-12-20 | 2023-06-21 | ZUMA Innovation, S.L. | Rear derailleur for an open quadrilateral |
-
1948
- 1948-12-24 FR FR978189D patent/FR978189A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE922929C (en) * | 1952-02-27 | 1955-01-27 | Fichtel & Sachs Ag | Carrier for chain switching devices of bicycles |
DE1225514B (en) * | 1959-10-23 | 1966-09-22 | Campagnolo Tullio | Single-track device for a multi-speed gearshift for bicycles |
EP4197893A1 (en) | 2021-12-20 | 2023-06-21 | ZUMA Innovation, S.L. | Rear derailleur for an open quadrilateral |
WO2023118141A1 (en) | 2021-12-20 | 2023-06-29 | Zuma Innovation S.L. | Rear derailleur for an open quadrilateral |
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