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1. (WO1989000256) CONTINUOUSLY-VARIABLE-RATIO TRANSMISSIONS OF THE TOROIDAL RACE ROLLING TRACTION TYPE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1989/000256 International Application No.: PCT/GB1988/000535
Publication Date: 12.01.1989 International Filing Date: 07.07.1988
Chapter 2 Demand Filed: 15.03.1989
IPC:
F16H 15/38 (2006.01) ,F16H 61/664 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
H
GEARING
15
Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
02
without members having orbital motion
04
Gearings providing a continuous range of gear ratios
06
in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B
32
in which the member B has a curved friction surface formed as a surface of a body of revolution generated by a curve which is neither a circular arc centered on its axis of revolution nor a straight line
36
with concave friction surface, e.g. a hollow toroid surface
38
with two members B having hollow toroid surfaces opposite to each other, the member or members A being adjustably mounted between the surfaces
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
H
GEARING
61
Control functions within change-speed- or reversing-gearings for conveying rotary motion
66
specially adapted for continuously variable gearings
664
Friction gearings
Applicants:
PERRY, Forbes, George de Brie [GB/GB]; GB
Inventors:
PERRY, Forbes, George de Brie; GB
Agent:
HORTON, Andrew, Robert, Grant; Bowles Horton Castle House 89 High Street Berkhamsted Hertfordshire HP4 2DF, GB
Priority Data:
871595207.07.1987GB
Title (EN) CONTINUOUSLY-VARIABLE-RATIO TRANSMISSIONS OF THE TOROIDAL RACE ROLLING TRACTION TYPE
(FR) TRANSMISSIONS A RAPPORTS PROGRESSIFS DU TYPE A TRACTION PAR ROULEMENTS A VOIE TOROIDALE
Abstract:
(EN) A continuously variable transmission which has an input disc (40) and an output disc (45) defining a toroidal race (41, 46) and rollers (48) between the discs (40, 45), the rollers (48) being adjustable in unison to vary the transmission ratio by means of an internal operating member (51), and an external operating lever (59) which has a cam (56) determining the position of and having a non-linear relationship with a follower (55, 50) which is connected to the internal member (51).
(FR) Transmission à rapports progressifs ayant un disque d'entrée (40) et un disque de sortie (45) définissant une voie de roulement toroïdale (41, 46), et des rouleaux (48) entre les disques (40, 45), les rouleaux (48) étant réglables simultanément afin de faire varier le rapport de transmission au moyen d'un élément (51) de commande interne, et d'un levier (99) de commande externe, dont la came (56) détermine la position d'un doigt suiveur (55, 50) avec lequel elle a une relation non linéaire, le doigt suiveur étant connecté à l'élément interne (51).
Designated States: AU, GB, JP, KR, US
European Patent Office (AT, BE, CH, DE, FR, GB, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0370040US5029487DE000003871956GB2208178AU1988019699