GB632861A - Improvements in and relating to gear change mechanism - Google Patents

Improvements in and relating to gear change mechanism

Info

Publication number
GB632861A
GB632861A GB1159547A GB1159547A GB632861A GB 632861 A GB632861 A GB 632861A GB 1159547 A GB1159547 A GB 1159547A GB 1159547 A GB1159547 A GB 1159547A GB 632861 A GB632861 A GB 632861A
Authority
GB
United Kingdom
Prior art keywords
gears
clutches
countershaft
gear
synchronizing
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
GB1159547A
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.)
EWEN GORDON M EWEN
Original Assignee
EWEN GORDON M EWEN
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 EWEN GORDON M EWEN filed Critical EWEN GORDON M EWEN
Priority to GB1159547A priority Critical patent/GB632861A/en
Publication of GB632861A publication Critical patent/GB632861A/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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/12—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with means for synchronisation not incorporated in the clutches
    • 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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/12—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with means for synchronisation not incorporated in the clutches
    • F16H2003/123—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with means for synchronisation not incorporated in the clutches using a brake
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/04—Smoothing ratio shift
    • F16H61/0403—Synchronisation before shifting
    • F16H2061/0407—Synchronisation before shifting by control of clutch in parallel torque path

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)

Abstract

632,861. Controlling change-speed gearing. M'EWEN, E. G. April 30, 1947, No. 11595. [Class 80 (ii)] Means for facilitating the engagement of doubleacting balked dog clutches 13, 14 in a countershaft change-speed gear comprise separate synchronizing upshift and downshift clutches 23, 24 the driving and driven members of which are permanently geared to the input and output shafts 1, 28 and which provide respectively a gear ratio higher than normal top and lower than normal bottom gear. As shown, applied to a countershaft four-speed and reversing gearing, gears 3, 8 meshing gears 2, 7 on the input shaft and countershaft respectively are clutchable to auxiliary shafts 21, 22, geared to the output shaft, by hydraulically or otherwise operated cone clutches the appropriate one of which is automatically engaged on gear selection and tripped out by the first movement of the selector rail to engage the appropriate dog clutch on synchronization. The cone clutches may be replaced by simple three-element epicyclic gears having a driving sun, driven carrier and a reaction annulus stationed by an external brake band to bring in the synchronizing drive. The synchronizing drives may themselves be used as auxiliary high and low gears.
GB1159547A 1947-04-30 1947-04-30 Improvements in and relating to gear change mechanism Expired GB632861A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1159547A GB632861A (en) 1947-04-30 1947-04-30 Improvements in and relating to gear change mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1159547A GB632861A (en) 1947-04-30 1947-04-30 Improvements in and relating to gear change mechanism

Publications (1)

Publication Number Publication Date
GB632861A true GB632861A (en) 1949-12-05

Family

ID=9989134

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1159547A Expired GB632861A (en) 1947-04-30 1947-04-30 Improvements in and relating to gear change mechanism

Country Status (1)

Country Link
GB (1) GB632861A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1054301B (en) * 1953-08-31 1959-04-02 Harold Sinclair Power transmission device, in particular for ship propulsion
EP0088486A2 (en) * 1982-02-05 1983-09-14 Automotive Products Public Limited Company Rotary transmission
US4682516A (en) * 1984-10-09 1987-07-28 Honda Giken Kogyo Kabushiki Kaisha Vehicular transmission with additional low speed
WO2005068879A1 (en) * 2004-01-16 2005-07-28 Zf Friedrichshafen Ag Drive device comprising a gearbox
EP1359048A3 (en) * 2002-04-24 2006-07-05 Honda Giken Kogyo Kabushiki Kaisha Power transmission system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1054301B (en) * 1953-08-31 1959-04-02 Harold Sinclair Power transmission device, in particular for ship propulsion
EP0088486A2 (en) * 1982-02-05 1983-09-14 Automotive Products Public Limited Company Rotary transmission
EP0088486A3 (en) * 1982-02-05 1985-05-22 Automotive Products Public Limited Company Rotary transmission
US4544057A (en) * 1982-02-05 1985-10-01 Automotive Products Plc Rotary transmission
US4682516A (en) * 1984-10-09 1987-07-28 Honda Giken Kogyo Kabushiki Kaisha Vehicular transmission with additional low speed
EP1359048A3 (en) * 2002-04-24 2006-07-05 Honda Giken Kogyo Kabushiki Kaisha Power transmission system
WO2005068879A1 (en) * 2004-01-16 2005-07-28 Zf Friedrichshafen Ag Drive device comprising a gearbox
US7461568B2 (en) 2004-01-16 2008-12-09 Zf Friedrichshafen Ag Drive device comprising a gearbox

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