GB615089A - Improvements in or relating to variable-speed gearing - Google Patents
Improvements in or relating to variable-speed gearingInfo
- Publication number
- GB615089A GB615089A GB2534846A GB2534846A GB615089A GB 615089 A GB615089 A GB 615089A GB 2534846 A GB2534846 A GB 2534846A GB 2534846 A GB2534846 A GB 2534846A GB 615089 A GB615089 A GB 615089A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pinions
- gear
- teeth
- shaft
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/04—Combinations of toothed gearings only
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
615,089. Change-speed gearing. BIRMING- HAM SMALL ARMS CO., Ltd., and FLETCHER, J. Aug. 24, 1946, No. 25348. [Class 80 (ii)] A vehicle change-speed gear giving a wide range of gear ratios comprises an epicyclic gear train mounted on a mainshaft 3 between freely mounted pinions 15, 17 meshing pinions 19, 21 respectively splined to a driven shaft 5. Planet pinions 29 engage a sun wheel 31 fixed to the shaft 3 and internal teeth on an annulus 33. Ratchet teeth 49 formed on the circumference of the annulus 33 are engaged by spring loaded pawls pivotally mounted on the casing 1, so that in the driving condition the annulus is held stationary, but may rotate in the opposite direction to facilitate free-wheeling. A chain connects sprockets 9, 11, secured to shafts 7, 3, respectively and a clutch (not shown) is incorporated between the shaft 7 and driving shaft 13. A sprocket 25 secured to the shaft 5 is chain connected to the vehicle wheels. As shown in the Figure, the gears are in the neutral position. To engage top gear, the pinion 15 is moved so that dog teeth 37 thereon engage internal dog teeth 39 on a sleeve 41 keyed to the shaft 3. On engagement of the gear teeth of the pinion 15 with adjacent internal dog teeth 35 on the planet carrier 27, the drive is transmitted through the sun wheel 31, planet pinions 29, planet carrier 27 and pinions 15, 19, thus effecting low gear condition. Similarly when the pinion 17 is clutched to the planet carrier by engagement of dog teeth 43 with teeth 45, the drive is transmitted through the epicyclic train and pinions 17, 21 giving a medium gear.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2534846A GB615089A (en) | 1946-08-24 | 1946-08-24 | Improvements in or relating to variable-speed gearing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2534846A GB615089A (en) | 1946-08-24 | 1946-08-24 | Improvements in or relating to variable-speed gearing |
Publications (1)
Publication Number | Publication Date |
---|---|
GB615089A true GB615089A (en) | 1948-12-31 |
Family
ID=10226199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2534846A Expired GB615089A (en) | 1946-08-24 | 1946-08-24 | Improvements in or relating to variable-speed gearing |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB615089A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2589967A1 (en) * | 1985-11-08 | 1987-05-15 | Valeo | EVOLUTIVE GEARBOX WITH PARALLEL SHAFTS AND PLANETARY GEAR IN PARTICULAR FOR MOTOR VEHICLES |
-
1946
- 1946-08-24 GB GB2534846A patent/GB615089A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2589967A1 (en) * | 1985-11-08 | 1987-05-15 | Valeo | EVOLUTIVE GEARBOX WITH PARALLEL SHAFTS AND PLANETARY GEAR IN PARTICULAR FOR MOTOR VEHICLES |
EP0227503A1 (en) * | 1985-11-08 | 1987-07-01 | Valeo | Convertible gear box with parallel axes and a planetary gear train, especially for motor vehicles |
US4788887A (en) * | 1985-11-08 | 1988-12-06 | Valeo | Adaptable layshaft type gearbox using a planetary gearset, in particular for automobile vehicles |
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