GB742914A - Improvements in and relating to differential variable speed transmissions - Google Patents

Improvements in and relating to differential variable speed transmissions

Info

Publication number
GB742914A
GB742914A GB32483/53A GB3248353A GB742914A GB 742914 A GB742914 A GB 742914A GB 32483/53 A GB32483/53 A GB 32483/53A GB 3248353 A GB3248353 A GB 3248353A GB 742914 A GB742914 A GB 742914A
Authority
GB
United Kingdom
Prior art keywords
flanges
shaft
annulus
pulley
gear
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
GB32483/53A
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.)
RENE MANGIN
Original Assignee
RENE MANGIN
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 RENE MANGIN filed Critical RENE MANGIN
Publication of GB742914A publication Critical patent/GB742914A/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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/66—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings
    • F16H61/662—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings with endless flexible members
    • F16H61/66231—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings with endless flexible members controlling shifting exclusively as a function of speed
    • F16H61/66245—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings with endless flexible members controlling shifting exclusively as a function of speed using purely mechanical sensing or control means
    • 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
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
    • F16H37/0833—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths
    • F16H37/084—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths at least one power path being a continuously variable transmission, i.e. CVT
    • F16H37/0846—CVT using endless flexible members
    • 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
    • F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
    • F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
    • F16H9/04—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes
    • F16H9/12—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members
    • F16H9/16—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using two pulleys, both built-up out of adjustable conical parts
    • F16H2009/163—Arrangements of two or more belt gearings mounted in parallel, e.g. for increasing transmittable torque

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

742,914. Variable speed gear. MANGIN, R. Nov. 23, 1953 [Nov. 27, 1952], No. 32483/53. Class 80(2) An automatically variable ratio gear, for vehicles, &c., between driving and driven shafts 1, 7, comprises a differential, consisting in the form shown of an internally toothed annulus 6, stepped planet gears 10 in a carrier 11, and a sun gear 12, drive passing through a torque responsive coupling 2 and an auxiliary shaft 4 to the annulus 6 via a gear 5 and through expanding pulley 14...17, 21...24 and V-belts to the sun gear, while the planet carrier is fast on the driven shaft 7, the axial positions of the movable flanges 15, 17 and 21, 23 of the expanding pulleys, and hence the velocity ratio, being determined by the force produced by the torque responsive coupling 2 and by an opposing force produced by centrifugal means 37. The sizes of the annulus 6, planets 10 and sun 12 are so proportioned that the planet carrier rotates with an angular velocity which is the algebraic mean of the angular velocities of the sun and annulus. The torque responsive coupling 2 consists of a pinion on the driving shaft having helical teeth engaging a sleeve 3 acting as a nut. The auxiliary shaft 4 is hollow and can rotate on the driving shaft. The centrifugal means comprises balls 37 engaging surfaces 39, 41 on the pulley flanges 15, 16. These surfaces are arcs of radii such that, for a given angular velocity of the driving shaft, the axial component of the force acting between the balls and surfaces, and tending to separate the pulley flanges, is constant, irrespective of the radial position of the balls. The movable pulley flanges 15, 17 and 21, 23 are connected to each other by rods 18, 25, respectively. The movements of the two sets of pulley flanges are co-ordinated by a member 28 and bearings 19, 27 connected to the movable flanges by the rods 18, 25, so that separation of the flanges 14, 15 is accompanied by a closing movement of the flanges 21, 22, &c. The flange member 28 has trunnions 29 rotatable in fork members 34 on a rocking shaft carrying levers 36. A removable stop can be engaged by one of the levers 36, in which position no drive passes to the driven shaft 7; when the lever moves away from the stop, forward drive is obtained. By taking away the stop and moving the levers 36 by hand, reverse is obtained.
GB32483/53A 1952-11-27 1953-11-23 Improvements in and relating to differential variable speed transmissions Expired GB742914A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR742914X 1952-11-27

Publications (1)

Publication Number Publication Date
GB742914A true GB742914A (en) 1956-01-04

Family

ID=9142580

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32483/53A Expired GB742914A (en) 1952-11-27 1953-11-23 Improvements in and relating to differential variable speed transmissions

Country Status (2)

Country Link
FR (1) FR1067204A (en)
GB (1) GB742914A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3850050A (en) * 1973-02-06 1974-11-26 J Lemmens Continuously variable automatic transmission
GB2129072A (en) * 1982-10-27 1984-05-10 Riccardo Bertolino Expanding pulley
WO2004070235A1 (en) * 2003-02-07 2004-08-19 Jeno Gonda Multifunctional, absolute continuous, stepless direction shifting transmission

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2974544A (en) * 1958-12-05 1961-03-14 Edwin L Spangler Jr Automatic speed regulator
DE1219758B (en) * 1961-09-28 1966-06-23 Rene Mangin Automatically continuously variable V-belt change gear with axially movable side parts of the belt pulleys
DE1450681B1 (en) * 1964-01-24 1970-03-19 Louis Henri Denis Marie Ballu V-belt differential change gear

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3850050A (en) * 1973-02-06 1974-11-26 J Lemmens Continuously variable automatic transmission
GB2129072A (en) * 1982-10-27 1984-05-10 Riccardo Bertolino Expanding pulley
WO2004070235A1 (en) * 2003-02-07 2004-08-19 Jeno Gonda Multifunctional, absolute continuous, stepless direction shifting transmission

Also Published As

Publication number Publication date
FR1067204A (en) 1954-06-14

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