GB759773A - Continuously variable speed gears - Google Patents

Continuously variable speed gears

Info

Publication number
GB759773A
GB759773A GB2437953A GB2437953A GB759773A GB 759773 A GB759773 A GB 759773A GB 2437953 A GB2437953 A GB 2437953A GB 2437953 A GB2437953 A GB 2437953A GB 759773 A GB759773 A GB 759773A
Authority
GB
United Kingdom
Prior art keywords
shaft
disc
sleeve
springs
variable
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
Application number
GB2437953A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB2437953A priority Critical patent/GB759773A/en
Publication of GB759773A publication Critical patent/GB759773A/en
Expired legal-status Critical Current

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
    • F16H15/32—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 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
    • F16H15/36—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 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 with concave friction surface, e.g. a hollow toroid surface
    • F16H15/38—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 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 with concave friction surface, e.g. a hollow toroid surface 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
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H13/00—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members
    • F16H13/10—Means for influencing the pressure between the members
    • F16H13/14—Means for influencing the pressure between the members for automatically varying the pressure mechanically

Abstract

759,773. Variable-speed gearing. RENNERFELT, S. B. Sept. 3, 1953. No. 24379/53. Class 80(2) In variable-speed friction gearing with tiltable rollers 25 engaging toric races in driving and driven discs 9, 10, the driven disc 10 is coupled to the output shaft 3 through a cam-and-ball device 11, 13, 14 so that axial pressure is applied to disc 10 dependent on the load, and a considerable additional axial pressure is applied directly to disc 10 by springs 21. The cam surfaces are formed on the ends of sleeves 11, 13, of which sleeve 13 is keyed on shaft 3 and abuts through a member 15 and the inner race of a ball bearing 16 against a nut 17 on shaft 3, while sleeve 11 is loose on shaft 3, rotates with disc 10 and abuts against the latter through spring washers 18. The springs 21 are arranged between disc 10 and a member 22 abutting against member 15 through a thrust bearing 23. Disc 9 rotates with a sleeve 7 geared to input shaft 4 and abuts against the sleeve 7 through spring washers 20, the sleeve 7 in turn abutting against a collar on shaft 3 through a thrust bearing 19. In order to allow for inequalities in the cam surfaces, sleeve 11 may have radial freedom by being Oldhamcoupled to disc 10 (Fig. 3, not shown) or by having play on shaft 3 and a ball bearing 29, Fig. 5, on the shaft at the remote end. Specification 759,820 is referred to.
GB2437953A 1953-09-03 1953-09-03 Continuously variable speed gears Expired GB759773A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2437953A GB759773A (en) 1953-09-03 1953-09-03 Continuously variable speed gears

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2437953A GB759773A (en) 1953-09-03 1953-09-03 Continuously variable speed gears

Publications (1)

Publication Number Publication Date
GB759773A true GB759773A (en) 1956-10-24

Family

ID=10210812

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2437953A Expired GB759773A (en) 1953-09-03 1953-09-03 Continuously variable speed gears

Country Status (1)

Country Link
GB (1) GB759773A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2408076A1 (en) * 1977-11-07 1979-06-01 Battistin Ferdinando LINEAR MECHANICAL VARIATOR, WITH VARIABLE TRANSMISSION RATIO BY RELATIVE RADIAL DISC SYSTEM BETWEEN AN ASSOCIATED DISC SYSTEM, WITH A SHAFT AND A ROLLER CROWN SYSTEM ASSOCIATED WITH A SECOND SHAFT, BY MEANS OF ADHESION PRESSURE BETWEEN THE SUSDITED DISCS AND THE CROWNS , VARIABLE DEPENDING ON THE TORSION TORQUE TRANSMITTED
GB2281362A (en) * 1993-08-31 1995-03-01 Nsk Ltd Toroidal-type continuously variable transmission has carburized or carbonitrided and ground traction rollers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2408076A1 (en) * 1977-11-07 1979-06-01 Battistin Ferdinando LINEAR MECHANICAL VARIATOR, WITH VARIABLE TRANSMISSION RATIO BY RELATIVE RADIAL DISC SYSTEM BETWEEN AN ASSOCIATED DISC SYSTEM, WITH A SHAFT AND A ROLLER CROWN SYSTEM ASSOCIATED WITH A SECOND SHAFT, BY MEANS OF ADHESION PRESSURE BETWEEN THE SUSDITED DISCS AND THE CROWNS , VARIABLE DEPENDING ON THE TORSION TORQUE TRANSMITTED
GB2281362A (en) * 1993-08-31 1995-03-01 Nsk Ltd Toroidal-type continuously variable transmission has carburized or carbonitrided and ground traction rollers
US5556348A (en) * 1993-08-31 1996-09-17 Nsk Ltd. Toroidal-type continuously variable transmission
GB2281362B (en) * 1993-08-31 1998-02-04 Nsk Ltd Toroidal-type continuously variable transmission

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