GB683266A - Improvements in or relating to continuous change-speed gears - Google Patents

Improvements in or relating to continuous change-speed gears

Info

Publication number
GB683266A
GB683266A GB7906/51A GB790651A GB683266A GB 683266 A GB683266 A GB 683266A GB 7906/51 A GB7906/51 A GB 7906/51A GB 790651 A GB790651 A GB 790651A GB 683266 A GB683266 A GB 683266A
Authority
GB
United Kingdom
Prior art keywords
roller
rollers
discs
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
GB7906/51A
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 GB683266A publication Critical patent/GB683266A/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
    • F16H15/08—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 is a disc with a flat or approximately flat friction surface
    • F16H15/10—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 is a disc with a flat or approximately flat friction surface in which the axes of the two members cross or intersect
    • F16H15/12—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 is a disc with a flat or approximately flat friction surface in which the axes of the two members cross or intersect in which one or each member is duplicated, e.g. for obtaining better transmission, for lessening the reaction forces on the bearings
    • 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
    • F16H15/08—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 is a disc with a flat or approximately flat friction surface
    • F16H15/10—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 is a disc with a flat or approximately flat friction surface in which the axes of the two members cross or intersect
    • 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
    • F16H15/46—Gearings providing a discontinuous or stepped range of gear ratios

Landscapes

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

Abstract

683,266. Variable-speed friction gear. DALL 'OLIO, V. April 5, 1951 [Aug. 1, 1950], No. 7906/51. Class 80 (ii). A continuously-variable friction gear comprises two opposite driving discs 11, 12 engaged alternatively by a series of driven rollers 17 rotatably mounted on an output shaft 19 and interconnected by gearing. The velocity ratio of the gearing between adjacent rollers is equal to the ratio of the minimum to the maximum velocity of the disc and roller. Two electric motors 1, 2 which drive the discs 11, 12 are mounted on a cylindrical housing 5 rotatable about a shaft 8 under the action of springs 13, 14 to equalize the pressure between the friction elements. End plates 6, 7 of the housing 5 support rotatably the output shaft 19 and a countershaft 22 carrying toothed gears 20, 21 which engage respectively gears 18 rigid with one roller 17 and gears 23 which drive, through a one-way clutch, an adjacent roller 17. The one-way clutches prevent the end rollers from attaining high speeds when the velocity ratio of the gear has a low value. A final reduction gear 24, 25 is provided between the end roller 17 and the shaft 19. The friction-roller-countershaft assembly is moved axially of the shaft 19 by means of a handle 30 and screw 31 to traverse the rollers 17 across the discs 11, 12, one roller moving out of engagement as the other moves in. An indicator, Fig. 3 (not shown), is provided to give warning when two rollers contact the discs simultaneously.
GB7906/51A 1950-08-01 1951-04-05 Improvements in or relating to continuous change-speed gears Expired GB683266A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT683266X 1950-08-01

Publications (1)

Publication Number Publication Date
GB683266A true GB683266A (en) 1952-11-26

Family

ID=11308987

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7906/51A Expired GB683266A (en) 1950-08-01 1951-04-05 Improvements in or relating to continuous change-speed gears

Country Status (1)

Country Link
GB (1) GB683266A (en)

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