GB1454954A - Transmission gear change - Google Patents

Transmission gear change

Info

Publication number
GB1454954A
GB1454954A GB801974A GB801974A GB1454954A GB 1454954 A GB1454954 A GB 1454954A GB 801974 A GB801974 A GB 801974A GB 801974 A GB801974 A GB 801974A GB 1454954 A GB1454954 A GB 1454954A
Authority
GB
United Kingdom
Prior art keywords
rod
solenoid
lever
plunger
synchronizer
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
GB801974A
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.)
Rover Co Ltd
Original Assignee
Rover Co Ltd
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 Rover Co Ltd filed Critical Rover Co Ltd
Priority to GB801974A priority Critical patent/GB1454954A/en
Publication of GB1454954A publication Critical patent/GB1454954A/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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • F16H59/0217—Selector apparatus with electric switches or sensors not for gear or range selection, e.g. for controlling auxiliary devices

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear-Shifting Mechanisms (AREA)

Abstract

1454954 Change-speed control BRITISH LEYLAND UK Ltd 17 April 1975 [21 Feb 1974] 8019/74 Heading F2D Engagement pressure between synchronizer cones 13, 14 during manual ratio shift is augmented by electromagnetic force controlled by a load sensor 23 between the selector lever 11 and a rod 12 to which the cone is connected by a fork 10. A solenoid 20 through which the rod is slidable is flanked by a pair of plungers 17, 18 fixed to the rod and carrying conical spring washers 19. As the rod is moved leftwardly the spring 19 on the plunger 18 engages and displaces the solenoid until, on increased loading on the rod as the cones 13, 14 engage, the sensor 23 energizes the solenoid through a controller 24 causing the solenoid to become anchored in a ferromagnetic, e.g. mild steel, sleeve 15 and the plunger 18 to be drawn leftwardly, compressing the spring 19. On completion of synchronization the solenoid is deenergized and the synchronizer is positively engaged by the final part of the movement of the lever 11. The plunger 17 is operative on another synchronizer (not shown) actuated by rightward movement of the rod. The load sensor 23 may alternately be in the lever 11. Also, the lever 11 may incorporate means for disengaging a transmission clutch when it is grasped by the driver.
GB801974A 1974-02-21 1974-02-21 Transmission gear change Expired GB1454954A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB801974A GB1454954A (en) 1974-02-21 1974-02-21 Transmission gear change

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB801974A GB1454954A (en) 1974-02-21 1974-02-21 Transmission gear change

Publications (1)

Publication Number Publication Date
GB1454954A true GB1454954A (en) 1976-11-10

Family

ID=9844235

Family Applications (1)

Application Number Title Priority Date Filing Date
GB801974A Expired GB1454954A (en) 1974-02-21 1974-02-21 Transmission gear change

Country Status (1)

Country Link
GB (1) GB1454954A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT386662B (en) * 1983-09-15 1988-09-26 Steyr Daimler Puch Ag SWITCHING DEVICE FOR INTERCHANGEABLE GEARBOXES OF COMMERCIAL VEHICLES

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT386662B (en) * 1983-09-15 1988-09-26 Steyr Daimler Puch Ag SWITCHING DEVICE FOR INTERCHANGEABLE GEARBOXES OF COMMERCIAL VEHICLES

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Legal Events

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