GB666691A - Infinitely variable speed gear - Google Patents

Infinitely variable speed gear

Info

Publication number
GB666691A
GB666691A GB18972/48A GB1897248A GB666691A GB 666691 A GB666691 A GB 666691A GB 18972/48 A GB18972/48 A GB 18972/48A GB 1897248 A GB1897248 A GB 1897248A GB 666691 A GB666691 A GB 666691A
Authority
GB
United Kingdom
Prior art keywords
balls
segments
shafts
geared
july
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
GB18972/48A
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.)
Ebauches SA
Original Assignee
Ebauches SA
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 Ebauches SA filed Critical Ebauches SA
Publication of GB666691A publication Critical patent/GB666691A/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
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
    • F16H37/0833—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths
    • F16H37/084—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths at least one power path being a continuously variable transmission, i.e. CVT
    • F16H37/086—CVT using two coaxial friction members cooperating with at least one intermediate friction member
    • 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
    • F16H15/26—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 has a spherical friction surface centered on its axis of revolution
    • F16H15/28—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 has a spherical friction surface centered on its axis of revolution with external friction surface

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

666,691. Variable-speed friction gearing. EBAUCHES AKT.-GES. July 14, 1948 [July 16, 1947], No. 18972/49. Class 80 (ii). Balls 6 engaging between cups 5, 5' carried by input and output shafts 3, 4 rotate by means of inwardly-directed stub axles about axes 7, which intersect at a common point on the axis of the shafts, in toothed segments 10 rotatably mounted in a stationary cage 12 by means of pins 11 the axes of which .pass through the centre of the balls. The segments 10 are in mesh with a common central rack 19 and one of the pins 11 is extended and geared to a control spindle 18. By turning this spindle, the segments 10 and therewith the balls 6 may be tilted to vary the speed ratio. Contact pressure is provided by springs 22 and camming balls 21. The shafts 3, 4 are. geared to elements 25, 28 of a differential gear, the third element 32 of which forms the final driven shaft. Alternatively, the rack 19 may be extended through shaft 3 or 4 so as to be reciprocable directly for adjusting the gear, Fig. 4 (not shown). According to the Specification as open to inspection under Sect. 91, two balls only may be used, the two toothed segments gearing directly with each other. This subject-matter does not appear in the Specification as accepted.
GB18972/48A 1947-07-16 1948-07-14 Infinitely variable speed gear Expired GB666691A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH666691X 1947-07-16

Publications (1)

Publication Number Publication Date
GB666691A true GB666691A (en) 1952-02-20

Family

ID=4527342

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18972/48A Expired GB666691A (en) 1947-07-16 1948-07-14 Infinitely variable speed gear

Country Status (1)

Country Link
GB (1) GB666691A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3246531A (en) * 1960-11-04 1966-04-19 Kashihara Manabu Infinitely variable speed change gear

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3246531A (en) * 1960-11-04 1966-04-19 Kashihara Manabu Infinitely variable speed change gear

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