GB819151A - Improvements in or relating to gear selecting arrangements - Google Patents

Improvements in or relating to gear selecting arrangements

Info

Publication number
GB819151A
GB819151A GB2635/57A GB263557A GB819151A GB 819151 A GB819151 A GB 819151A GB 2635/57 A GB2635/57 A GB 2635/57A GB 263557 A GB263557 A GB 263557A GB 819151 A GB819151 A GB 819151A
Authority
GB
United Kingdom
Prior art keywords
gear
shaft
lever
supporting member
movement
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
GB2635/57A
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.)
Maquinas Agricolas Romi S A
Original Assignee
Maquinas Agricolas Romi S A
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 Maquinas Agricolas Romi S A filed Critical Maquinas Agricolas Romi S A
Publication of GB819151A publication Critical patent/GB819151A/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
    • F16H3/20—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear
    • F16H3/36—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear with a single gear meshable with any of a set of coaxial gears of different diameters
    • F16H3/363—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear with a single gear meshable with any of a set of coaxial gears of different diameters the teeth of the set of coaxial gears being arranged on a surface of generally conical shape

Landscapes

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

Abstract

819,151. Change-speed gearing. MAQUINAS AGRICOLAS ROMA S.A. Jan. 24, 1957 [Jan. 25, 1956], No. 2635/57. Class 80 (2). In a change-speed gear in which a first gear is arranged to selectively engage any one of a set of stepped gears by movements parallel and transverse to the common axis, the movements of the first gear are controlled by a single manually-operable means. A Norton-type change-speed gear in which a driving shaft 55 has an axially slidable gear 54 keyed thereto and carried in a supporting member 49 slidable on, and rotatable about the shaft 55. The supporting member 49 also carries a second gear 52 permanently engaged with the gear 54 and selectively engageable with a series of stepped gears 53. The supporting member 49 is controlled by a hand lever 4 having angular movements 27, 28 transverse to the shaft 55 and also parallel to the shaft 55 about the axis of a control shaft 1. Initial movement of the lever 4 in direction 27 moves a cam 29 in a direction 30 along the control shaft 1 through movement of a fork 21 connected to the lever 4. Movement of the cam 29 causes a follower 44 to ride up a truncated conical face 46<SP>1</SP> and rotate a locking control lever 37 to contact the free end of an engaging member 64 and withdraw a catch means 60 from a locking recess 61 against the action of a spring 80, to unlock the supporting member 49. Further movement of the cam 29 in direction 30 allows the cam end face 46 to contact an abutment 45 on a lever 40, pivoted at 41, to cause the end 47 of the lever to contact the underside of the supporting member 49 and rotate that member about the shaft 55, against a spring 68, to unmesh the gears 52, 53. Angular movement of the lever 4 about the axis of the control shaft 1 swings a first control member 35, rigid with the shaft 1, and having portions 50, 51 located on either side of the supporting member 49, to move the member 49 axially along the shaft 55 for gear selection. The levers 37 and 40 are pivoted at 38 and 41 respectively on the member 35 and move with it. Movement of the lever 4 in direction 28 first allows engagement of the gear 52 with the selected gear 53 and then releases the catch means 60 to lock the supporting member in position. A chart, co-operating with pointers on the control member 5, is fixed to the casing 10 to indicate the ratio obtained.
GB2635/57A 1956-01-25 1957-01-24 Improvements in or relating to gear selecting arrangements Expired GB819151A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR819151X 1956-01-25

Publications (1)

Publication Number Publication Date
GB819151A true GB819151A (en) 1959-08-26

Family

ID=4029789

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2635/57A Expired GB819151A (en) 1956-01-25 1957-01-24 Improvements in or relating to gear selecting arrangements

Country Status (1)

Country Link
GB (1) GB819151A (en)

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