GB924485A - Variable speed power transmission mechanism - Google Patents

Variable speed power transmission mechanism

Info

Publication number
GB924485A
GB924485A GB130761A GB130761A GB924485A GB 924485 A GB924485 A GB 924485A GB 130761 A GB130761 A GB 130761A GB 130761 A GB130761 A GB 130761A GB 924485 A GB924485 A GB 924485A
Authority
GB
United Kingdom
Prior art keywords
balls
spring
drive member
connector
planetating
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
GB130761A
Inventor
Frank George Freeman
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
Joseph Lucas Industries 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 Lucas Industries Ltd, Joseph Lucas Industries Ltd filed Critical Lucas Industries Ltd
Priority to GB130761A priority Critical patent/GB924485A/en
Publication of GB924485A publication Critical patent/GB924485A/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
    • F16H61/664—Friction gearings
    • F16H61/6647—Friction gearings controlling shifting exclusively as a function of torque

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Friction Gearing (AREA)

Abstract

924,485. Variable-speed gear. JOSEPH LUCAS (INDUSTRIES) Ltd. Jan. 15, 1962. [Jan. 12, 1961], No. 1307/61. Class 80 (2). A continuously variable ratio friction planetary gear for portable electric drills &c. comprises an input shaft 2 and shouldered drive member 7 engaged by planetating balls 8 rolling on a surrounding non-rotary housing 1, each ball being caged in its own arm 9 pivoted upon an axially movable connector 10 in quick-pitch screw-threaded engagement with a sleeve 11 and its attached output shaft 3, a spring 12 urging the connector 10 upwardly of the Figure to force the balls radially outwards of the shouldered drive member 7, increasing load upon the driven shaft 3 causing the connector 10 to be screwed into the sleeve 11 against the bias of the spring 12 so that the arms 9 draw the balls 8 radially inwards and the gear gives a lower ratio. The shouldered drive member 7 is biased axially into engagement with the planetating balls 8 by a spring 13.
GB130761A 1961-01-12 1961-01-12 Variable speed power transmission mechanism Expired GB924485A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB130761A GB924485A (en) 1961-01-12 1961-01-12 Variable speed power transmission mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB130761A GB924485A (en) 1961-01-12 1961-01-12 Variable speed power transmission mechanism

Publications (1)

Publication Number Publication Date
GB924485A true GB924485A (en) 1963-04-24

Family

ID=9719720

Family Applications (1)

Application Number Title Priority Date Filing Date
GB130761A Expired GB924485A (en) 1961-01-12 1961-01-12 Variable speed power transmission mechanism

Country Status (1)

Country Link
GB (1) GB924485A (en)

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