GB1376057A - Steplessly variable friction transmission gears - Google Patents

Steplessly variable friction transmission gears

Info

Publication number
GB1376057A
GB1376057A GB2058172A GB2058172A GB1376057A GB 1376057 A GB1376057 A GB 1376057A GB 2058172 A GB2058172 A GB 2058172A GB 2058172 A GB2058172 A GB 2058172A GB 1376057 A GB1376057 A GB 1376057A
Authority
GB
United Kingdom
Prior art keywords
balls
ball
control
control rod
tilted
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
GB2058172A
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.)
Allspeeds Ltd
Original Assignee
Allspeeds Ltd
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 Allspeeds Ltd filed Critical Allspeeds Ltd
Priority to GB2058172A priority Critical patent/GB1376057A/en
Publication of GB1376057A publication Critical patent/GB1376057A/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
    • F16H15/26—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 spherical friction surface centered on its axis of revolution
    • F16H15/28—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 spherical friction surface centered on its axis of revolution with external friction surface

Abstract

1376057 Variable-speed gear ALLSPEEDS Ltd 1 Aug 1973 [3 May 1972] 20581/72 Heading F2D In a steplessly variable gear wherein flanges 12, 13 on aligned shafts 10, 11 are frictionally connected by three, six or other number of balls 16, 17 rotating about stationary axes which can be tilted to vary the ratio, at least one of the balls 16 is a control ball rotatable on a spindle 18, which can be tilted by a radially slidable rod 19, while at least one other 17 (two shown) of the balls is freely mounted. The inclination of the axis of rotation of the free ball 17 follows that of the control ball 16 so that all balls share the load. Two freely mounted balls 17 are carried in apertures in a fixed disc 27 which has a V-shaped aperture for the control ball 16, and guides for the control rod 19 and its ball-socket connection 21. Low friction material may be provided at the support surfaces of the balls and control rod, or the balls 16, 17 may be supported by additional balls. Traction pressure is provided by outer races 23, 24, backed by ball, roller or needle bearings, and loaded axially by coil or diaphragm springs 25, 26, hydraulically or pneumatically. The control rod 19 may be screw adjustable and operated by a handle or through a sprocket drive.
GB2058172A 1973-08-01 1973-08-01 Steplessly variable friction transmission gears Expired GB1376057A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2058172A GB1376057A (en) 1973-08-01 1973-08-01 Steplessly variable friction transmission gears

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2058172A GB1376057A (en) 1973-08-01 1973-08-01 Steplessly variable friction transmission gears

Publications (1)

Publication Number Publication Date
GB1376057A true GB1376057A (en) 1974-12-04

Family

ID=10148278

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2058172A Expired GB1376057A (en) 1973-08-01 1973-08-01 Steplessly variable friction transmission gears

Country Status (1)

Country Link
GB (1) GB1376057A (en)

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4275610A (en) * 1979-02-08 1981-06-30 Excelermatic Inc. Infinitely variable traction roller transmission
US4713976A (en) * 1985-03-22 1987-12-22 Vern Heinrichs Differential having a generally spherical differencing element
US5236403A (en) * 1991-08-16 1993-08-17 Fichtel & Sachs Ag Driving hub for a vehicle, particularly a bicycle, with an infinitely variable adjustable transmission ratio
US6241636B1 (en) 1997-09-02 2001-06-05 Motion Technologies, Llc Continuously variable transmission
US6419608B1 (en) 1999-10-22 2002-07-16 Motion Technologies, Llc Continuously variable transmission
US6551210B2 (en) 2000-10-24 2003-04-22 Motion Technologies, Llc. Continuously variable transmission
US6689012B2 (en) 2001-04-26 2004-02-10 Motion Technologies, Llc Continuously variable transmission
US7011600B2 (en) 2003-02-28 2006-03-14 Fallbrook Technologies Inc. Continuously variable transmission
US7654928B2 (en) 2003-08-11 2010-02-02 Fallbrook Technologies Inc. Continuously variable planetary gear set
US7670243B2 (en) 2005-08-24 2010-03-02 Fallbrook Technologies, Inc. Continuously variable transmission
US7727101B2 (en) 2005-10-28 2010-06-01 Fallbrook Technologies Inc. Electromotive drives
US7762920B2 (en) 2004-10-05 2010-07-27 Fallbrook Technologies Inc. Continuously variable transmission
USRE41892E1 (en) 1997-09-02 2010-10-26 Fallbrook Technologies Inc. Continuously variable transmission
US7871353B2 (en) 2005-12-09 2011-01-18 Fallbrook Technologies Inc. Continuously variable transmission
US7914029B2 (en) 2005-11-22 2011-03-29 Fallbrook Technologies Inc. Continuously variable transmission
US8087482B2 (en) 2006-03-14 2012-01-03 Fallbrook Technologies Inc. Wheelchair
US8167759B2 (en) 2008-10-14 2012-05-01 Fallbrook Technologies Inc. Continuously variable transmission
US8313405B2 (en) 2008-02-29 2012-11-20 Fallbrook Intellectual Property Company Llc Continuously and/or infinitely variable transmissions and methods therefor
US8313404B2 (en) 2007-02-16 2012-11-20 Fallbrook Intellectual Property Company Llc Infinitely variable transmissions, continuously variable transmissions, methods, assemblies, subassemblies, and components therefor
US8321097B2 (en) 2007-12-21 2012-11-27 Fallbrook Intellectual Property Company Llc Automatic transmissions and methods therefor
US8317651B2 (en) 2008-05-07 2012-11-27 Fallbrook Intellectual Property Company Llc Assemblies and methods for clamping force generation
US8360917B2 (en) 2009-04-16 2013-01-29 Fallbrook Intellectual Property Company Llc Continuously variable transmission
US8376903B2 (en) 2006-11-08 2013-02-19 Fallbrook Intellectual Property Company Llc Clamping force generator
US8393989B2 (en) 2007-04-24 2013-03-12 Fallbrook Intellectual Property Company Llc Electric traction drives
US8398518B2 (en) 2008-06-23 2013-03-19 Fallbrook Intellectual Property Company Llc Continuously variable transmission
US8469856B2 (en) 2008-08-26 2013-06-25 Fallbrook Intellectual Property Company Llc Continuously variable transmission
US8480529B2 (en) 2006-06-26 2013-07-09 Fallbrook Intellectual Property Company Llc Continuously variable transmission
US8506452B2 (en) 2005-12-30 2013-08-13 Fallbrook Intellectual Property Company Llc Continuously variable transmission
US8512195B2 (en) 2010-03-03 2013-08-20 Fallbrook Intellectual Property Company Llc Infinitely variable transmissions, continuously variable transmissions, methods, assemblies, subassemblies, and components therefor
US8535199B2 (en) 2008-06-06 2013-09-17 Fallbrook Intellectual Property Company Llc Infinitely variable transmissions, continuously variable transmissions, methods, assemblies, subassemblies, and components therefor
US8641577B2 (en) 2007-06-11 2014-02-04 Fallbrook Intellectual Property Company Llc Continuously variable transmission
US8738255B2 (en) 2007-02-01 2014-05-27 Fallbrook Intellectual Property Company Llc Systems and methods for control of transmission and/or prime mover
US8776633B2 (en) 2006-01-30 2014-07-15 Fallbrook Intellectual Property Company Llc System for manipulating a continuously variable transmission
US8818661B2 (en) 2008-08-05 2014-08-26 Fallbrook Intellectual Property Company Llc Methods for control of transmission and prime mover
US8845485B2 (en) 2011-04-04 2014-09-30 Fallbrook Intellectual Property Company Llc Auxiliary power unit having a continuously variable transmission
US8888643B2 (en) 2010-11-10 2014-11-18 Fallbrook Intellectual Property Company Llc Continuously variable transmission
US8900085B2 (en) 2007-07-05 2014-12-02 Fallbrook Intellectual Property Company Llc Continuously variable transmission
US8996263B2 (en) 2007-11-16 2015-03-31 Fallbrook Intellectual Property Company Llc Controller for variable transmission
US9371894B2 (en) 2007-02-12 2016-06-21 Fallbrook Intellectual Property Company Llc Continuously variable transmissions and methods therefor
US9611921B2 (en) 2012-01-23 2017-04-04 Fallbrook Intellectual Property Company Llc Infinitely variable transmissions, continuously variable transmissions, methods, assemblies, subassemblies, and components therefor
US9677650B2 (en) 2013-04-19 2017-06-13 Fallbrook Intellectual Property Company Llc Continuously variable transmission
US10047861B2 (en) 2016-01-15 2018-08-14 Fallbrook Intellectual Property Company Llc Systems and methods for controlling rollback in continuously variable transmissions
US10458526B2 (en) 2016-03-18 2019-10-29 Fallbrook Intellectual Property Company Llc Continuously variable transmissions, systems and methods
US11174922B2 (en) 2019-02-26 2021-11-16 Fallbrook Intellectual Property Company Llc Reversible variable drives and systems and methods for control in forward and reverse directions
US11215268B2 (en) 2018-11-06 2022-01-04 Fallbrook Intellectual Property Company Llc Continuously variable transmissions, synchronous shifting, twin countershafts and methods for control of same
US11667351B2 (en) 2016-05-11 2023-06-06 Fallbrook Intellectual Property Company Llc Systems and methods for automatic configuration and automatic calibration of continuously variable transmissions and bicycles having continuously variable transmission

Cited By (168)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4275610A (en) * 1979-02-08 1981-06-30 Excelermatic Inc. Infinitely variable traction roller transmission
US4713976A (en) * 1985-03-22 1987-12-22 Vern Heinrichs Differential having a generally spherical differencing element
US5236403A (en) * 1991-08-16 1993-08-17 Fichtel & Sachs Ag Driving hub for a vehicle, particularly a bicycle, with an infinitely variable adjustable transmission ratio
US7044884B2 (en) 1997-09-02 2006-05-16 Fallbrook Technologies Inc. Continuously variable transmission
US7014591B2 (en) 1997-09-02 2006-03-21 Fallbrook Technologies Inc. Continuously variable transmission
US7140999B2 (en) 1997-09-02 2006-11-28 Fallbrook Technologies Inc. Continuously variable transmission
US6676559B2 (en) 1997-09-02 2004-01-13 Motion Technologies, Llc Continuously variable transmission
US6241636B1 (en) 1997-09-02 2001-06-05 Motion Technologies, Llc Continuously variable transmission
US6945903B2 (en) 1997-09-02 2005-09-20 Fallbrook Technologies, Inc. Continuously variable transmission
US7837592B2 (en) 1997-09-02 2010-11-23 Fallbrook Technologies Inc. Continuously variable transmission
US7011601B2 (en) 1997-09-02 2006-03-14 Fallbrook Technologies Inc. Continuously variable transmission
USRE41892E1 (en) 1997-09-02 2010-10-26 Fallbrook Technologies Inc. Continuously variable transmission
US7074007B2 (en) 1997-09-02 2006-07-11 Fallbrook Technologies Inc. Continuously variable transmission
US7074155B2 (en) 1997-09-02 2006-07-11 Fallbrook Technologies Inc. Continuously variable transmission
US7727107B2 (en) 1997-09-02 2010-06-01 Fallbrook Technologies Inc. Continuously variable transmission
US7112158B2 (en) 1997-09-02 2006-09-26 Fallbrook Technologies Inc. Continuously variable transmission
US7063640B2 (en) 1997-09-02 2006-06-20 Fallbrook Technologies Inc. Continuously variable transmission
US7074154B2 (en) 1998-08-12 2006-07-11 Fallbrook Technologies Inc. Continuously variable transmission
US6419608B1 (en) 1999-10-22 2002-07-16 Motion Technologies, Llc Continuously variable transmission
US7032914B2 (en) 2000-10-24 2006-04-25 Fallbrook Technologies, Inc. Continuously visible transmission
US6551210B2 (en) 2000-10-24 2003-04-22 Motion Technologies, Llc. Continuously variable transmission
US7883442B2 (en) 2001-04-26 2011-02-08 Fallbrook Technologies Inc. Continuously variable transmission
US6689012B2 (en) 2001-04-26 2004-02-10 Motion Technologies, Llc Continuously variable transmission
US7112159B2 (en) 2001-04-26 2006-09-26 Fallbrook Technologies Inc. Continuously variable transmission
US7166058B2 (en) 2001-04-26 2007-01-23 Fallbrook Technologies Inc. Continuously variable transmission
US6949049B2 (en) 2001-04-26 2005-09-27 Fallbrook Technologies, Inc. Continuously variable transmission
US7011600B2 (en) 2003-02-28 2006-03-14 Fallbrook Technologies Inc. Continuously variable transmission
US7731615B2 (en) 2003-02-28 2010-06-08 Fallbrook Technologies Inc. Continuously variable transmission
US7686729B2 (en) 2003-02-28 2010-03-30 Fallbrook Technologies Inc. Continuously variable transmission
US7036620B2 (en) 2003-02-28 2006-05-02 Fallbrook Technologies Inc. Continuously variable transmission
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US7651437B2 (en) 2003-02-28 2010-01-26 Fallbrook Technologies Inc. Continuously variable transmission
US7654928B2 (en) 2003-08-11 2010-02-02 Fallbrook Technologies Inc. Continuously variable planetary gear set
US7727110B2 (en) 2003-08-11 2010-06-01 Fallbrook Technologies Inc. Continuously variable planetary gear set
US8920285B2 (en) 2004-10-05 2014-12-30 Fallbrook Intellectual Property Company Llc Continuously variable transmission
US7762919B2 (en) 2004-10-05 2010-07-27 Fallbrook Technologies Inc. Continuously variable transmission
US7785228B2 (en) 2004-10-05 2010-08-31 Fallbrook Technologies Inc. Torsion disc for use in a continuously variable transmission
US7963880B2 (en) 2004-10-05 2011-06-21 Fallbrook Technologies Inc. Continuously variable transmission
US7967719B2 (en) 2004-10-05 2011-06-28 Fallbrook Technologies Inc. Continuously variable transmission
US7976426B2 (en) 2004-10-05 2011-07-12 Fallbrook Technologies Inc. Continuously variable transmission
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US7909727B2 (en) 2004-10-05 2011-03-22 Fallbrook Technologies Inc. Continuously variable transmission
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US8123653B2 (en) 2004-10-05 2012-02-28 Fallbrook Technologies Inc. Continuously variable transmission
US8133149B2 (en) 2004-10-05 2012-03-13 Fallbrook Technologies Inc. Continuously variable transmission
US8171636B2 (en) 2004-10-05 2012-05-08 Fallbrook Technologies Inc. Method of manufacturing a stator of a cage for a continuously variable transmission (CVT)
US7670243B2 (en) 2005-08-24 2010-03-02 Fallbrook Technologies, Inc. Continuously variable transmission
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