GB931078A - Continuously variable friction gears - Google Patents
Continuously variable friction gearsInfo
- Publication number
- GB931078A GB931078A GB3340259A GB3340259A GB931078A GB 931078 A GB931078 A GB 931078A GB 3340259 A GB3340259 A GB 3340259A GB 3340259 A GB3340259 A GB 3340259A GB 931078 A GB931078 A GB 931078A
- Authority
- GB
- United Kingdom
- Prior art keywords
- disc
- discs
- carriage
- guide
- driving
- 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
- F16H15/08—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 is a disc with a flat or approximately flat friction surface
- F16H15/10—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 is a disc with a flat or approximately flat friction surface in which the axes of the two members cross or intersect
- F16H15/12—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 is a disc with a flat or approximately flat friction surface in which the axes of the two members cross or intersect in which one or each member is duplicated, e.g. for obtaining better transmission, for lessening the reaction forces on the bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Friction Gearing (AREA)
- Transmission Devices (AREA)
Abstract
931,078. Variable-speed friction gears. F. COMIDA, and G. OBONI. Oct. 2, 1959 [Oct. 15, 1958; March 25, 1959], No. 33402/59. Class 80 (2). A continuously variable friction gear comprises driving and driven discs 4 frictionally engaging a freely rotatable oblique disc 8 which is adjustable in its own plane to vary the gear ratio. Support discs 4a are loaded by springs 7 so that the disc 8 is clamped between pairs of discs 4, 4a. The edges of the discs 4, 4a may be bevelled or rounded. Disc 8 is mounted by a bearing 17 on a pin 9 carried by a carriage 10 slidable along a guide 11, the carriage being adjusted by a knob 14 having a pinion 13 meshing a rack formed on the carriage. Limited universal movement of the disc 8 is permitted by the bearing 17, or in an alternative construction by play between the carriage and guide and by the mounting of the guide in the casing, in order to ensure correct positioning of the disc 8 relative to the discs 4. In modifications the driving and driven disc 4 are in perpendicular planes, and the driven disc may drive an output shaft through reduction gearing. In another modification, Fig. 10, the carriage 10 is secured to the guide 11 by a pin 27 and the guide is screwthreaded at 11a so that it can be adjusted by means of a threaded sleeve 30 which is held axially. In the modification of Fig. 8 two driving discs 24 are geared to an input shaft 23 and frictionally drive simultaneously adjustable discs 8 driving a common output disc 24b.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT596479 | 1958-10-15 | ||
| IT495259 | 1959-03-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB931078A true GB931078A (en) | 1963-07-10 |
Family
ID=38651768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3340259A Expired GB931078A (en) | 1958-10-15 | 1959-10-02 | Continuously variable friction gears |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT214733B (en) |
| BE (1) | BE583583A (en) |
| CH (1) | CH368998A (en) |
| DE (1) | DE1133956B (en) |
| ES (1) | ES252656A1 (en) |
| FR (1) | FR1236440A (en) |
| GB (1) | GB931078A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2255142A (en) * | 1991-04-23 | 1992-10-28 | Nsk Ltd | Toroidal-race rolling-traction cvt |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE276741C (en) * | ||||
| US1378570A (en) * | 1921-03-15 | 1921-05-17 | Conrad A Slocum | Variable-speed power transmission |
| DE872709C (en) * | 1940-08-15 | 1953-04-02 | Hofheinz & Co Richard | Friction disc transmission |
| CH237678A (en) * | 1942-03-02 | 1945-05-15 | Lorand Armand | Speed variator. |
| US2336799A (en) * | 1942-03-24 | 1943-12-14 | Sterling Electric Motors Inc | Ring-type variable-speed transmission |
| FR986211A (en) * | 1948-06-23 | 1951-07-30 | Multi-element friction shifting | |
| DE812618C (en) * | 1948-10-02 | 1951-09-03 | Karl Biasi | Infinitely variable friction gear |
| FR1030507A (en) * | 1950-07-22 | 1953-06-15 | Eisengiesserei Wehinger Und Co | Progressive variation transmission mechanism |
| FR61594E (en) * | 1951-04-19 | 1955-05-12 | Eisengiesserei Wehinger Und Co | Progressive variation transmission mechanism |
-
1959
- 1959-09-23 DE DEC19845A patent/DE1133956B/en active Pending
- 1959-09-25 FR FR6548A patent/FR1236440A/en not_active Expired
- 1959-10-02 GB GB3340259A patent/GB931078A/en not_active Expired
- 1959-10-06 CH CH7910859A patent/CH368998A/en unknown
- 1959-10-07 AT AT726559A patent/AT214733B/en active
- 1959-10-14 BE BE583583A patent/BE583583A/en unknown
- 1959-10-14 ES ES0252656A patent/ES252656A1/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2255142A (en) * | 1991-04-23 | 1992-10-28 | Nsk Ltd | Toroidal-race rolling-traction cvt |
| US5299988A (en) * | 1991-04-23 | 1994-04-05 | Nsk Ltd. | Continuously variable traction roller transmission |
| GB2255142B (en) * | 1991-04-23 | 1995-02-15 | Nsk Ltd | Continuously variable traction roller transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1133956B (en) | 1962-07-26 |
| CH368998A (en) | 1963-04-30 |
| AT214733B (en) | 1961-04-25 |
| FR1236440A (en) | 1960-07-15 |
| BE583583A (en) | 1960-02-01 |
| ES252656A1 (en) | 1960-03-01 |
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