GB2087009A - Torque transmitting body for traction drive transmissions and normal friction force developing method - Google Patents

Torque transmitting body for traction drive transmissions and normal friction force developing method

Info

Publication number
GB2087009A
GB2087009A GB8138446A GB8138446A GB2087009A GB 2087009 A GB2087009 A GB 2087009A GB 8138446 A GB8138446 A GB 8138446A GB 8138446 A GB8138446 A GB 8138446A GB 2087009 A GB2087009 A GB 2087009A
Authority
GB
United Kingdom
Prior art keywords
axis
body
axes
surfaces
friction force
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.)
Granted
Application number
GB8138446A
Other versions
GB2087009B (en
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.)
VADETEC CORP
Original Assignee
VADETEC CORP
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 VADETEC CORP filed Critical VADETEC CORP
Priority to PCT/US1980/000583 priority Critical patent/WO1981003366A1/en
Publication of GB2087009A publication Critical patent/GB2087009A/en
Application granted granted Critical
Publication of GB2087009B publication Critical patent/GB2087009B/en
Application status is Expired legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H15/00Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
    • F16H15/48Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members with members having orbital motion
    • F16H15/50Gearings providing a continuous range of gear ratios
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H15/00Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
    • F16H15/02Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
    • F16H15/04Gearings providing a continuous range of gear ratios
    • F16H15/06Gearings 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
    • F16H15/16Gearings 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 conical friction surface

Abstract

A nutating traction drive in which external rolling surfaces on a one-piece bi-conical body (10) are retained against axially spaced internal ring surfaces (51, 52) at diameterically opposite points of contact by a mechanism acting between a body (18) which is rotatable on the axis of the ring surfaces or a first axis (24) and which carries the biconical body (10) on a second axis (30) inclined with respect to and intersecting the first axis at a point (S) of axes intersection located midway between the ring surfaces (51, 52) and points of contact. The mechanism includes a pivotal member (66) having a fulcrum point (78) eccentric from the first axis (24) or displaced from a plane containing both the first (24) and second (30) axes so that a torque reaction to rotation of the carrying body (18) by the biconical body (10) results in a force attempting to increase the angle between the first (24) and second (30) axes. A preloading device (82) acting to rock the pivot member (66) in one direction provides a preload bias of the rolling surfaces against each other whereas an unloading device (84) operating to swing the pivot member in the opposite direction results in a removal of normal friction force between the engaged rolling surfaces.
GB8138446A 1980-05-19 1980-05-19 Torque transmitting body for traction drive transmissions and normal friction force developing method Expired GB2087009B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US1980/000583 WO1981003366A1 (en) 1980-05-19 1980-05-19 Torque transmitting body for traction drive transmissions and normal friction force developing method

Publications (2)

Publication Number Publication Date
GB2087009A true GB2087009A (en) 1982-05-19
GB2087009B GB2087009B (en) 1984-05-02

Family

ID=22154352

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8138446A Expired GB2087009B (en) 1980-05-19 1980-05-19 Torque transmitting body for traction drive transmissions and normal friction force developing method

Country Status (7)

Country Link
EP (1) EP0052603A4 (en)
JP (1) JPS57500892A (en)
CA (1) CA1149642A (en)
DE (1) DE3050385A1 (en)
GB (1) GB2087009B (en)
IT (1) IT1144717B (en)
WO (1) WO1981003366A1 (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US839844A (en) * 1906-01-16 1907-01-01 Hilliard Clutch & Machinery Company Clutch.
US3224300A (en) * 1959-09-03 1965-12-21 Walter V Chery Automatic transmission
US3420122A (en) * 1965-11-11 1969-01-07 Kenzo Okabe Infinitely variable friction drive
US4112780A (en) * 1977-04-01 1978-09-12 Vadetec Corporation Variable speed transmission device
US4112779A (en) * 1976-11-03 1978-09-12 Vadetec Corporation Variable speed transmission device
US4152946A (en) * 1975-07-22 1979-05-08 Vadetec Corporation Transmission devices
US4183253A (en) * 1977-02-07 1980-01-15 Domenic Borello Dual surface angular power transfer wheel traction nipping device
GB2033034A (en) * 1978-10-27 1980-05-14 Vadetec Corp Infinitely-variable planetary friction gearing
US4208926A (en) * 1978-11-08 1980-06-24 Caterpillar Tractor Co. Nutating drive
US4233851A (en) * 1979-05-04 1980-11-18 Vadetec Corporation Infinitely variable transmission unit and method
US4238976A (en) * 1978-10-19 1980-12-16 Vadetec Corporation Infinitely variable power transmission and system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB839844A (en) * 1955-05-12 1960-06-29 Max Weber Variable speed friction drive
US4277982A (en) * 1979-09-21 1981-07-14 Vadetec Corporation Torque transmitting body for traction drive transmissions and normal friction force developing method

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US839844A (en) * 1906-01-16 1907-01-01 Hilliard Clutch & Machinery Company Clutch.
US3224300A (en) * 1959-09-03 1965-12-21 Walter V Chery Automatic transmission
US3420122A (en) * 1965-11-11 1969-01-07 Kenzo Okabe Infinitely variable friction drive
US4152946A (en) * 1975-07-22 1979-05-08 Vadetec Corporation Transmission devices
US4112779A (en) * 1976-11-03 1978-09-12 Vadetec Corporation Variable speed transmission device
US4183253A (en) * 1977-02-07 1980-01-15 Domenic Borello Dual surface angular power transfer wheel traction nipping device
US4112780A (en) * 1977-04-01 1978-09-12 Vadetec Corporation Variable speed transmission device
US4238976A (en) * 1978-10-19 1980-12-16 Vadetec Corporation Infinitely variable power transmission and system
GB2033034A (en) * 1978-10-27 1980-05-14 Vadetec Corp Infinitely-variable planetary friction gearing
US4208926A (en) * 1978-11-08 1980-06-24 Caterpillar Tractor Co. Nutating drive
US4233851A (en) * 1979-05-04 1980-11-18 Vadetec Corporation Infinitely variable transmission unit and method

Also Published As

Publication number Publication date
DE3050385A1 (en) 1982-06-16
JPS57500892A (en) 1982-05-20
EP0052603A4 (en) 1984-04-27
WO1981003366A1 (en) 1981-11-26
CA1149642A1 (en)
GB2087009B (en) 1984-05-02
CA1149642A (en) 1983-07-12
IT1144717B (en) 1986-10-29
EP0052603A1 (en) 1982-06-02
DE3050385T0 (en)

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee