GB522873A - Improvements in or relating to change speed hub gears for pedal vehicles - Google Patents
Improvements in or relating to change speed hub gears for pedal vehiclesInfo
- Publication number
- GB522873A GB522873A GB776239A GB776239A GB522873A GB 522873 A GB522873 A GB 522873A GB 776239 A GB776239 A GB 776239A GB 776239 A GB776239 A GB 776239A GB 522873 A GB522873 A GB 522873A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pawls
- hub
- gear
- speed
- annulus
- 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
- B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
- B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
- B62M11/14—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears
- B62M11/145—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears built in, or adjacent to, the bottom bracket
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
522,873. Variable-speed gears. COMPAGNIE CROIX. and BOYER, L. March 10, 1939, No. 7762. [Class 80 (ii)] A three-speed hub gear for cycles comprises a driving crankshaft 3 to which is secured a carrier 4 carrying planet pinions 6. The planets 6 are in engagement with a sun gear 7 and an annulus 9 which are freely mounted upon the crankshaft 3 and are integral with hollow shafts 8 and 10 extending over half the length of the shaft 3. These hollow shafts 8 and 10 are in driving engagement with a driven hub 19 by means of one-way clutch devices comprising pawls 24, 25 and ratchet wheels 26, 27 and are also adapted to be selectively held by pawls 28 or 29 cooperating with ratchet wheels 30, 31 and operable by the rider through a flexible cable or other suitable means. When both the braking pawls 28, 29 are free the shaft 3 drives the hub 19 in direct drive through the epicyclic gear and both one-way devices. By holding either of the shafts 8 or 10 of the sun or annulus by means of the pawls 28, 29 an increased speed is obtained through the one-way device of the other member. Thus three speeds in all are obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB776239A GB522873A (en) | 1939-03-10 | 1939-03-10 | Improvements in or relating to change speed hub gears for pedal vehicles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB776239A GB522873A (en) | 1939-03-10 | 1939-03-10 | Improvements in or relating to change speed hub gears for pedal vehicles |
Publications (1)
Publication Number | Publication Date |
---|---|
GB522873A true GB522873A (en) | 1940-06-28 |
Family
ID=9839222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB776239A Expired GB522873A (en) | 1939-03-10 | 1939-03-10 | Improvements in or relating to change speed hub gears for pedal vehicles |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB522873A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0915009A1 (en) * | 1997-11-06 | 1999-05-12 | Yamaha Hatsudoki Kabushiki Kaisha | Speed change gear system for bicycle |
-
1939
- 1939-03-10 GB GB776239A patent/GB522873A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0915009A1 (en) * | 1997-11-06 | 1999-05-12 | Yamaha Hatsudoki Kabushiki Kaisha | Speed change gear system for bicycle |
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