FR2260728A1 - Infinitely variable gear ratio friction drive - has specially shaped and hardened planet wheels and tracks - Google Patents

Infinitely variable gear ratio friction drive - has specially shaped and hardened planet wheels and tracks

Info

Publication number
FR2260728A1
FR2260728A1 FR7404475A FR7404475A FR2260728A1 FR 2260728 A1 FR2260728 A1 FR 2260728A1 FR 7404475 A FR7404475 A FR 7404475A FR 7404475 A FR7404475 A FR 7404475A FR 2260728 A1 FR2260728 A1 FR 2260728A1
Authority
FR
France
Prior art keywords
wheels
planet wheels
hardened
tracks
gear ratio
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.)
Withdrawn
Application number
FR7404475A
Other languages
French (fr)
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.)
GUICHARD LOUIS FR
Original Assignee
GUICHARD LOUIS FR
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 GUICHARD LOUIS FR filed Critical GUICHARD LOUIS FR
Priority to FR7404475A priority Critical patent/FR2260728A1/en
Publication of FR2260728A1 publication Critical patent/FR2260728A1/en
Withdrawn legal-status Critical Current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
    • F16H15/48—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members with members having orbital motion
    • F16H15/50—Gearings providing a continuous range of gear ratios

Landscapes

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

Abstract

Drive is transmitted from the motor shaft (2) via a number of radially spring loaded planet wheels (1) to the output shaft (8). The frictional drive faces, between the driving surface and wheels (4, 13) and between wheels and driven surface (14, 6) have convex and concave shapes and are made from hardened steel, reducing wear, allowing high transmission speeds and giving high efficiency at high power. Continuous lubrication with low viscosity oil contributes to the achievement of long life. Speed change arrangements are particularly suitable for use in automatic transmission systems and consist essentially of setting the spring loaded forked lever (12) in different positions so that the driven surface (7) moves axially along the coarse pitch thread on the driven shaft.
FR7404475A 1974-02-11 1974-02-11 Infinitely variable gear ratio friction drive - has specially shaped and hardened planet wheels and tracks Withdrawn FR2260728A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7404475A FR2260728A1 (en) 1974-02-11 1974-02-11 Infinitely variable gear ratio friction drive - has specially shaped and hardened planet wheels and tracks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7404475A FR2260728A1 (en) 1974-02-11 1974-02-11 Infinitely variable gear ratio friction drive - has specially shaped and hardened planet wheels and tracks

Publications (1)

Publication Number Publication Date
FR2260728A1 true FR2260728A1 (en) 1975-09-05

Family

ID=9134735

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7404475A Withdrawn FR2260728A1 (en) 1974-02-11 1974-02-11 Infinitely variable gear ratio friction drive - has specially shaped and hardened planet wheels and tracks

Country Status (1)

Country Link
FR (1) FR2260728A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2406131A1 (en) * 1977-10-14 1979-05-11 Patent Concern Nv TORQUE CONVERTER
EP1197680A1 (en) * 2000-10-03 2002-04-17 Valeriano A. Lollato Continuous speed variator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2406131A1 (en) * 1977-10-14 1979-05-11 Patent Concern Nv TORQUE CONVERTER
EP1197680A1 (en) * 2000-10-03 2002-04-17 Valeriano A. Lollato Continuous speed variator

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Legal Events

Date Code Title Description
ST Notification of lapse