GB921613A - Improvements relating to continuously-variable-ratio gears - Google Patents
Improvements relating to continuously-variable-ratio gearsInfo
- Publication number
- GB921613A GB921613A GB3763159A GB3763159A GB921613A GB 921613 A GB921613 A GB 921613A GB 3763159 A GB3763159 A GB 3763159A GB 3763159 A GB3763159 A GB 3763159A GB 921613 A GB921613 A GB 921613A
- Authority
- GB
- United Kingdom
- Prior art keywords
- idlers
- idler
- engaging
- spindles
- driven
- 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
- F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
- F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
- F16H15/04—Gearings providing a continuous range of gear ratios
- F16H15/06—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B
- F16H15/16—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a conical friction surface
- F16H15/18—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a conical friction surface externally
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Friction Gearing (AREA)
Abstract
921,613. Variable - speed friction gear. SELECTRA Ltd., and E. W. KREBS. Nov. 7, 1960 [Nov. 5, 1959], No. 37631/59. Class 80 (2). Continuously variable friction gearing comprises driving and driven members 15, 16 frictionally engaging double conical idlers 20 with the semi-angle of each cone being 45 degrees and the axis of each idler being at 45 degrees to the gearing axis 19. Each idler is rotatably and slidably mounted on a spindle 23, the spindles being fast with a common ring 25 slidable along an extension 26 of the driving shaft 10, and one of the spindles carries a rack 28 engaging a pinion by means of which the idlers can be simultaneously adjusted to vary the gear ratio. The driving disc 15 is fast on the driving shaft, the driven disc 16 is journalled on the driven shaft 11 and is urged towards the idlers by spring washers 32 reacting against a bearing 13 in a fixed housing 14. The engaging pressure of the members 15, 16 with the idlers is made torque responsive by balls 33 engaging dimples in the member 16 and a ring 37 which is splined to the driven shaft. In a modification, Fig. 2, each idler has one conical surface 45 formed by the apical portion of a cone and the other surface 47 formed by a truncated cone, this arrangement providing greater reduction ratios. The inner ends of the idler spindles 23 are tied by a freely mounted disc 46, and the spring washers 32 are dispensed with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3763159A GB921613A (en) | 1959-11-05 | 1959-11-05 | Improvements relating to continuously-variable-ratio gears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3763159A GB921613A (en) | 1959-11-05 | 1959-11-05 | Improvements relating to continuously-variable-ratio gears |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB921613A true GB921613A (en) | 1963-03-20 |
Family
ID=10397840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3763159A Expired GB921613A (en) | 1959-11-05 | 1959-11-05 | Improvements relating to continuously-variable-ratio gears |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB921613A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4499781A (en) * | 1982-06-01 | 1985-02-19 | Lew Hyok S | Chamfered roller mechanical transmission |
| US5597056A (en) * | 1994-12-30 | 1997-01-28 | Blake; William L. | Torque controlled infinite ratio friction drive hub |
| CN102230522A (en) * | 2011-04-13 | 2011-11-02 | 北京理工大学 | Automotive double-cone pulley continuously variable transmission |
-
1959
- 1959-11-05 GB GB3763159A patent/GB921613A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4499781A (en) * | 1982-06-01 | 1985-02-19 | Lew Hyok S | Chamfered roller mechanical transmission |
| US5597056A (en) * | 1994-12-30 | 1997-01-28 | Blake; William L. | Torque controlled infinite ratio friction drive hub |
| CN102230522A (en) * | 2011-04-13 | 2011-11-02 | 北京理工大学 | Automotive double-cone pulley continuously variable transmission |
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