GB816560A - Automatic speed changing transmission for rotary motion - Google Patents

Automatic speed changing transmission for rotary motion

Info

Publication number
GB816560A
GB816560A GB35453/57A GB3545357A GB816560A GB 816560 A GB816560 A GB 816560A GB 35453/57 A GB35453/57 A GB 35453/57A GB 3545357 A GB3545357 A GB 3545357A GB 816560 A GB816560 A GB 816560A
Authority
GB
United Kingdom
Prior art keywords
planet carrier
spring
gear
shaft
gears
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
GB35453/57A
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
Publication of GB816560A publication Critical patent/GB816560A/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
    • F16H61/02—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 characterised by the signals used
    • F16H61/0293—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 characterised by the signals used the signals being purely mechanical
    • 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
    • F16H2718/00—Mechanisms for speed-change of planetary gearing, the speed change control being dependent on function parameters of the gearing
    • F16H2718/18—Control dependent on torque
    • F16H2718/20—Control dependent on torque only the toothed wheels remain engaged
    • F16H2718/22—Control dependent on torque only the toothed wheels remain engaged the control being mechanical

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)

Abstract

816,560. Change-speed gearing. REIS, S. Nov. 13, 1957 [Nov. 14, 1956; Dec. 24, 1956; Jan. 4, 1957], No. 35453/57. Class 80 (2). The planet carrier of an epicyclic gear is moved axially against resilient means, by torque loading on the helical teeth of the gears, to change the gear. An input shaft 1 has a sungear 2, and an output shaft 3 has a sun-gear 4 rigid therewith. The two sun-gears mesh with stepped planets 9, 10 carried by a planet carrier 5 having axial freedom on the shafts 1 and 2. A spring 15 urges the planet carrier towards the shaft 1 so that a cone-shaped member 11 contacts a clutch drum 12 rigid with the shaft 1 to provide a direct drive. An increase in torque passing through the gears 2, 9, 10, 4 which have helical teeth causes the planet carrier to move axially against the spring 15 and member 11 to contact a brake ring 13 and arrest the carrier to provide a ratio drive through the gear. A snap-action for the planet carrier is provided by a spring-ball detent 17 and grooves 19 in the shaft 3. In a modification the planet carrier is connected to the gear casing by a one-way clutch to prevent reverse rotation during the change interval and the spring 15 acts through a lever external to the casing. The lever may be connected to a piston subject to engine intake depression so that the spring pressure is proportional to engine torque. The lever may also be manually operated. An embodiment shows two of the gears connected in series to provide four speeds.
GB35453/57A 1956-11-14 1957-11-13 Automatic speed changing transmission for rotary motion Expired GB816560A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT816560X 1956-11-14

Publications (1)

Publication Number Publication Date
GB816560A true GB816560A (en) 1959-07-15

Family

ID=11317272

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35453/57A Expired GB816560A (en) 1956-11-14 1957-11-13 Automatic speed changing transmission for rotary motion

Country Status (1)

Country Link
GB (1) GB816560A (en)

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