GB1271229A - Improvements in or relating to fluid-pressure operated gear boxes - Google Patents

Improvements in or relating to fluid-pressure operated gear boxes

Info

Publication number
GB1271229A
GB1271229A GB5263468A GB5263468A GB1271229A GB 1271229 A GB1271229 A GB 1271229A GB 5263468 A GB5263468 A GB 5263468A GB 5263468 A GB5263468 A GB 5263468A GB 1271229 A GB1271229 A GB 1271229A
Authority
GB
United Kingdom
Prior art keywords
gear
movement
gate
lever
selector plate
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
GB5263468A
Inventor
Wilbur Mills Page
Ralph Coupland
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.)
Wabco Automotive UK Ltd
Original Assignee
Clayton Dewandre 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 Clayton Dewandre Co Ltd filed Critical Clayton Dewandre Co Ltd
Priority to GB5263468A priority Critical patent/GB1271229A/en
Publication of GB1271229A publication Critical patent/GB1271229A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • 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
    • F16H59/04—Ratio selector apparatus
    • F16H59/045—Ratio selector apparatus consisting of fluid valves
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/02—Means preventing undesired movements of a controlling member which can be moved in two or more separate steps or ways, e.g. restricting to a stepwise movement or to a particular sequence of movements
    • 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
    • F16H61/24—Providing feel, e.g. to enable selection
    • F16H2061/242—Mechanical shift gates or similar guiding means during selection and shifting

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Fluid Mechanics (AREA)
  • Gear-Shifting Mechanisms (AREA)

Abstract

1,271,229. Change-speed control. CLAYTON DEWANDRE CO. Ltd. 9 Oct., 1969 [6 Nov., 1968], No. 52634/68. Addition to 1,144,743. Heading F2D. A pneumatically operated vehicle gear change mechanism of the type disclosed in the parent Specification, includes a locking plunger 39 which is automatically pneumatically inwardly moved when top (i.e. 5th) gear is engaged to prevent movement of the gear shift lever 13, via an integral peg 54 on a selector plate 55, from the top (5th) gear to a gear lower than the next (i.e. 4th) gear until movement of the lever 13 into the 4th gear channel of the gate, or the door operating channel (D), outwardly releases the plunger to permit gear lever movement into the lower channels (3, 2 or 1) of the gate. Additional or alternative locking plungers may be provided for controlling movement of the shift lever between the other gear selecting positions in the gate as required. An additional channel (S) in the gate is the "start" position, movement of the lever 13 into which causes the gear selector plate 55 to close a micro-switch 67 connected across the starter motor for engine starting. The gear selector plate 55 is formed as a segment with a cam notched periphery engaged by a ball 52 spring and/or pneumatically loaded against the notched cam surface which is formed such that varying effort is required to move the shift lever 13 to various gear positions, the effort required depending on the position to be selected.
GB5263468A 1968-11-06 1968-11-06 Improvements in or relating to fluid-pressure operated gear boxes Expired GB1271229A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5263468A GB1271229A (en) 1968-11-06 1968-11-06 Improvements in or relating to fluid-pressure operated gear boxes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5263468A GB1271229A (en) 1968-11-06 1968-11-06 Improvements in or relating to fluid-pressure operated gear boxes

Publications (1)

Publication Number Publication Date
GB1271229A true GB1271229A (en) 1972-04-19

Family

ID=10464680

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5263468A Expired GB1271229A (en) 1968-11-06 1968-11-06 Improvements in or relating to fluid-pressure operated gear boxes

Country Status (1)

Country Link
GB (1) GB1271229A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985000860A1 (en) * 1983-08-12 1985-02-28 Zahnradfabrik Friedrichshafen Ag Pressure-actuated gear shifting device
EP0145684A2 (en) * 1983-10-05 1985-06-19 Hydrino Ab A levercontrol assembly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985000860A1 (en) * 1983-08-12 1985-02-28 Zahnradfabrik Friedrichshafen Ag Pressure-actuated gear shifting device
US4633987A (en) * 1983-08-12 1987-01-06 Zahnradfabrik Friedrichshafen Ag Pressure-medium actuated shifting arrangement
EP0145684A2 (en) * 1983-10-05 1985-06-19 Hydrino Ab A levercontrol assembly
EP0145684A3 (en) * 1983-10-05 1985-09-11 Hydrino Ab A control assembly

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