GB1480802A - Two speed drive mechanisms - Google Patents

Two speed drive mechanisms

Info

Publication number
GB1480802A
GB1480802A GB4470574A GB4470574A GB1480802A GB 1480802 A GB1480802 A GB 1480802A GB 4470574 A GB4470574 A GB 4470574A GB 4470574 A GB4470574 A GB 4470574A GB 1480802 A GB1480802 A GB 1480802A
Authority
GB
United Kingdom
Prior art keywords
plate
electromagnets
shaft
pulley
armature
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
GB4470574A
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.)
Secretary of State for Defence Canada
UK Secretary of State for Defence
Original Assignee
Secretary of State for Defence Canada
UK Secretary of State for Defence
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 Secretary of State for Defence Canada, UK Secretary of State for Defence filed Critical Secretary of State for Defence Canada
Priority to GB4470574A priority Critical patent/GB1480802A/en
Publication of GB1480802A publication Critical patent/GB1480802A/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
    • F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
    • F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
    • F16D27/004—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with permanent magnets combined with electromagnets
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
    • F16D27/12—Clutch systems with a plurality of electro-magnetically-actuated clutches

Landscapes

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

Abstract

1480802 Change-speed gear; friction clutches DEFENCE SECRETARY OF STATE FOR 25 Sept 1975 [15 Oct 1974] 44705/74 Headings F2D and F2C A clutch plate 13 movable axially to couple either of pulleys 7, 8 to a shaft 1, e.g. a tape recorder capstan drive shaft, to cause the latter to be driven at low or high speed is actuated by means such as electromagnets 17, 18 coacting with an armature 16 and is held in engagement with the selected pulley by permanent magnetic means to avoid the necessity for continuous power consumption by the electromagnets. Each pulley may have a facing 11, 12 of magnetically loaded elastomer and the plate 13 may be similarly faced or made of ferrous material. The electromagnets are spaced such as to avoid physical contact with the armature when the plate 13 is in engagement with either pulley. As shown, the plate 13 is held against rotation relatively to the shaft by a pin 14 and is actuated by a rod 15, but a modification is referred to in which the rod 15 is dispensed with and the shaft and plate are moved axially by the electromagnets.
GB4470574A 1975-09-25 1975-09-25 Two speed drive mechanisms Expired GB1480802A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4470574A GB1480802A (en) 1975-09-25 1975-09-25 Two speed drive mechanisms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4470574A GB1480802A (en) 1975-09-25 1975-09-25 Two speed drive mechanisms

Publications (1)

Publication Number Publication Date
GB1480802A true GB1480802A (en) 1977-07-27

Family

ID=10434410

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4470574A Expired GB1480802A (en) 1975-09-25 1975-09-25 Two speed drive mechanisms

Country Status (1)

Country Link
GB (1) GB1480802A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5479340A (en) * 1977-11-23 1979-06-25 Hurth Verwaltungs Gmbh Friction clutch to be operated by servo force
FR2551156A1 (en) * 1983-08-26 1985-03-01 Elitex Zavody Textilniho Electrically-controlled reversal coupling
WO1986005850A1 (en) * 1985-03-30 1986-10-09 Zahnradfabrik Friedrichshafen Ag Electromagnetic coupling or brakes with electrically changeable holding pewer
WO1991017373A1 (en) * 1990-05-01 1991-11-14 Theodore William Reinhold Drive mechanisms
AU692882B2 (en) * 1990-05-01 1998-06-18 Bartlem Pty Ltd Improved drive mechanisms
US6739211B2 (en) * 2001-09-28 2004-05-25 Isuzu Motors Limited Shift actuator for a transmission
US6810762B2 (en) 2001-06-18 2004-11-02 Isuzu Motors Limited Gear change device
US20140260741A1 (en) * 2007-11-14 2014-09-18 Merlin Technology, Inc. Drive mechanism and method
EP3012476A3 (en) * 2008-07-21 2016-08-24 Ricardo Uk Ltd. Clutch actuation

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5479340A (en) * 1977-11-23 1979-06-25 Hurth Verwaltungs Gmbh Friction clutch to be operated by servo force
FR2551156A1 (en) * 1983-08-26 1985-03-01 Elitex Zavody Textilniho Electrically-controlled reversal coupling
WO1986005850A1 (en) * 1985-03-30 1986-10-09 Zahnradfabrik Friedrichshafen Ag Electromagnetic coupling or brakes with electrically changeable holding pewer
WO1991017373A1 (en) * 1990-05-01 1991-11-14 Theodore William Reinhold Drive mechanisms
AU692882B2 (en) * 1990-05-01 1998-06-18 Bartlem Pty Ltd Improved drive mechanisms
AU692882C (en) * 1990-05-01 2007-03-15 Bartlem Pty Ltd Improved drive mechanisms
US6810762B2 (en) 2001-06-18 2004-11-02 Isuzu Motors Limited Gear change device
US6739211B2 (en) * 2001-09-28 2004-05-25 Isuzu Motors Limited Shift actuator for a transmission
US20140260741A1 (en) * 2007-11-14 2014-09-18 Merlin Technology, Inc. Drive mechanism and method
US9267575B2 (en) * 2007-11-14 2016-02-23 Merlin Technology Inc. Drive mechanism and method
US10859136B2 (en) 2007-11-14 2020-12-08 Merlin Technology Inc. Drive mechanism and method
EP3012476A3 (en) * 2008-07-21 2016-08-24 Ricardo Uk Ltd. Clutch actuation

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee