GB975935A - Improvements in change-speed gear systems - Google Patents

Improvements in change-speed gear systems

Info

Publication number
GB975935A
GB975935A GB1691760A GB1691760A GB975935A GB 975935 A GB975935 A GB 975935A GB 1691760 A GB1691760 A GB 1691760A GB 1691760 A GB1691760 A GB 1691760A GB 975935 A GB975935 A GB 975935A
Authority
GB
United Kingdom
Prior art keywords
gear
arm
shaft
change
overdrive
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
GB1691760A
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.)
Humber Ltd
Original Assignee
Humber 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 Humber Ltd filed Critical Humber Ltd
Priority to GB1691760A priority Critical patent/GB975935A/en
Publication of GB975935A publication Critical patent/GB975935A/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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/08—Multiple final output mechanisms being moved by a single common final actuating mechanism
    • F16H63/20—Multiple final output mechanisms being moved by a single common final actuating mechanism with preselection and subsequent movement of each final output mechanism by movement of the final actuating mechanism in two different ways, e.g. guided by a shift gate
    • 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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
    • F16H63/44—Signals to the control unit of auxiliary gearing
    • 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
    • F16H59/044—Ratio selector apparatus consisting of electrical switches or sensors

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Structure Of Transmissions (AREA)
  • Control Of Transmission Device (AREA)

Abstract

975,935. Change-speed control. HUMBER Ltd., and D. HODKIN. May 8, 1961 [May 13, 1960], No. 16917/60. Heading F2D. In a change-speed control for motor vehicles, wherein a three or, as described, four forward speed and reverse synchro-mesh main changespeed gear is arranged in series with an auxiliary change-speed gear such as the two-speed direct overdrive gear described, and a shaft 14, manually actuated by a steering column or main gear-box mounted control, is partrotated for cross-shift selection and then axially moved to establish a selected ratio in the main gear, subsequent, further part-rotation of the shaft 14, when the main gear is in top, or in one of the top two gears, also actuates, without change in the main gear, an electric push-button switch 32 whereby a selected ratio, e.g. overdrive, is engaged in the auxiliary gear. The shaft 14 comprises an arm 12 for engagement in notches of the shift rods. A safety member 16, rotatable, but not movable axially, with the shaft 14 and preventing simultaneous operation of two shift rods, comprises arms through holes in which the shaft 14 passes, a cross-bar 16b having longitudinal slots 18 receiving the arm 12, and further arms 16a embracing the arm 12 when the latter is in neutral position, and is axially located by an end wall and a flange of the main gear-box. The switch 32 is mounted in the gear-box wall and is actuated by a projection 34 on the safety member 16. An adjustable, spring-loaded ball detent 26 mounted in the end wall is respectively engageable in recesses 27, 28 of a plate 24 of the safety member 16 in the rotational shaft 14 position for main gear cross-shift selection for third and fourth gears and in the rotational shaft 14 position for overdrive engagement. A gear-box abutment 35 engageable by a safety member arm 16a, limits rotation of the arm 12. A further gearbox abutment 36 at the neutral axial position of the arm 12 co-operates with a peg 38 thereon to prevent axial movement of the arm only when it is in the further part-rotational position for overdrive engagement, thereby necessitating the disengagement of overdrive before a change between, or from, third and fourth gear can be made.
GB1691760A 1960-05-13 1960-05-13 Improvements in change-speed gear systems Expired GB975935A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1691760A GB975935A (en) 1960-05-13 1960-05-13 Improvements in change-speed gear systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1691760A GB975935A (en) 1960-05-13 1960-05-13 Improvements in change-speed gear systems

Publications (1)

Publication Number Publication Date
GB975935A true GB975935A (en) 1964-11-25

Family

ID=10086010

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1691760A Expired GB975935A (en) 1960-05-13 1960-05-13 Improvements in change-speed gear systems

Country Status (1)

Country Link
GB (1) GB975935A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0122014A2 (en) * 1983-03-15 1984-10-17 Massey-Ferguson Services N.V. Gear selector means

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0122014A2 (en) * 1983-03-15 1984-10-17 Massey-Ferguson Services N.V. Gear selector means
EP0122014A3 (en) * 1983-03-15 1985-09-11 Massey-Ferguson Services N.V. Gear selector means

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