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GB1426351A - Belt drive systems - Google Patents

Belt drive systems

Info

Publication number
GB1426351A
GB1426351A GB623873A GB623873A GB1426351A GB 1426351 A GB1426351 A GB 1426351A GB 623873 A GB623873 A GB 623873A GB 623873 A GB623873 A GB 623873A GB 1426351 A GB1426351 A GB 1426351A
Authority
GB
United Kingdom
Prior art keywords
pulley
flange
spring
balls
inclined surface
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
GB623873A
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.)
TRW Steering Systems Ltd
Original Assignee
TRW Steering Systems 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 TRW Steering Systems Ltd filed Critical TRW Steering Systems Ltd
Priority to GB623873A priority Critical patent/GB1426351A/en
Priority to FR7404065A priority patent/FR2217602B1/fr
Priority to JP1615574A priority patent/JPS5047064A/ja
Priority to IT6734274A priority patent/IT1004892B/en
Publication of GB1426351A publication Critical patent/GB1426351A/en
Priority to JP2137282U priority patent/JPS581851U/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmissions By Endless Flexible Members (AREA)

Abstract

1426351 Expanding wheel gear CAM GEARS Ltd 8 Feb 1974 [8 Feb 1973] 6238/73 Heading F2D In a V-belt expanding pulley gear wherein the speed ratio is automatically controlled by centrifugal steel balls 8 riding in channels in an inclined surface on one flange 4<SP>11</SP> of one pulley 4, the complementary pulley 2 being loaded by a spring 6, a non-linear rate for axial shift of the movable flanges is produced either by the springs 6 or the inclined surface, or both. In Fig. 2, in which the centrifugal pulley 4 is the output pulley, the inclined surface has two differently inclined portions 16<SP>1</SP>, 16<SP>11</SP>. In Fig. 3, not shown, the spring 6 (Fig. 2) is constituted by two differently rated springs 18,. 20 in series, whilst in Fig. 4, not shown, each flange of the input pulley is biased by a separate spring 22, 24, the springs having different rates, and each flange of the output pulley is loaded by centrifugal balls (8, 28) riding on flange tracks of different inclination. In Fig. 5, not shown, the balls (36) are associated with the input pulley 2 and are enclosed between an inclined surface (38) entending inwardly from the outer periphery of the movable flange and a radial, or inclined, surface of an abutment disc (40) axially fixed on the shaft, the balls being opposed by a spring (42) between the abutment disc (40) and the rear face of the pulley flange. The output pulley is biased by a single spring (44) the rate of which differs from that (42) of the input pulley. The ball channels may be of changing arcuate form and may terminate tangential at their outer ends.
GB623873A 1973-02-08 1973-02-08 Belt drive systems Expired GB1426351A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB623873A GB1426351A (en) 1973-02-08 1973-02-08 Belt drive systems
FR7404065A FR2217602B1 (en) 1973-02-08 1974-02-07
JP1615574A JPS5047064A (en) 1973-02-08 1974-02-07
IT6734274A IT1004892B (en) 1973-02-08 1974-02-07 VARIABLE RATIO BELT TRANSMISSION
JP2137282U JPS581851U (en) 1973-02-08 1982-02-17 belt drive system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB623873A GB1426351A (en) 1973-02-08 1973-02-08 Belt drive systems

Publications (1)

Publication Number Publication Date
GB1426351A true GB1426351A (en) 1976-02-25

Family

ID=9810925

Family Applications (1)

Application Number Title Priority Date Filing Date
GB623873A Expired GB1426351A (en) 1973-02-08 1973-02-08 Belt drive systems

Country Status (4)

Country Link
JP (2) JPS5047064A (en)
FR (1) FR2217602B1 (en)
GB (1) GB1426351A (en)
IT (1) IT1004892B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441770A1 (en) * 1978-11-16 1980-06-13 Cam Gears Ltd TRANSMISSION ASSEMBLY WITH VARIABLE SPEED RATIO

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5158269U (en) * 1974-10-30 1976-05-07
JPS5154158A (en) * 1974-11-06 1976-05-13 Hitachi Ltd SHUTSURYOKUJIKUTEISOKUGATAJIDOHENSOKUKI
NL7809168A (en) * 1978-09-08 1980-03-11 Volvo Car Bv AUTOMATIC VARIABLE DRIVING FOR A MOTOR VEHICLE.
FR2580758B1 (en) * 1985-04-19 1987-05-29 Pubert Sa Ets Henri AUTOMATIC SPEED DRIVE WITH TRAPEZOIDAL BELT AND PULLEYS WITH VARIABLE GAP FLANGES
JPS639762A (en) * 1986-06-30 1988-01-16 Mitsuboshi Belting Ltd Centrifugal propulsion speed change pulley
JPS6367453A (en) * 1987-04-10 1988-03-26 Honda Motor Co Ltd V-belt transfer type automatic transmission
BR0307188A (en) * 2003-01-06 2005-08-23 Ulrich Ing Rohs Pressing device, for tensioning two transmission members, and transmission with a said type pressing device, as well as method for operating such a friction transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441770A1 (en) * 1978-11-16 1980-06-13 Cam Gears Ltd TRANSMISSION ASSEMBLY WITH VARIABLE SPEED RATIO

Also Published As

Publication number Publication date
JPS581851U (en) 1983-01-07
FR2217602B1 (en) 1978-09-29
IT1004892B (en) 1976-07-20
JPS5047064A (en) 1975-04-26
FR2217602A1 (en) 1974-09-06

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee