GB486144A - Improvements relating to gear change mechanism for motor vehicles - Google Patents

Improvements relating to gear change mechanism for motor vehicles

Info

Publication number
GB486144A
GB486144A GB365837A GB365837A GB486144A GB 486144 A GB486144 A GB 486144A GB 365837 A GB365837 A GB 365837A GB 365837 A GB365837 A GB 365837A GB 486144 A GB486144 A GB 486144A
Authority
GB
United Kingdom
Prior art keywords
plate
lever
ratchet
foot
change
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
GB365837A
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.)
Birmingham Small Arms Co Ltd
Original Assignee
Birmingham Small Arms 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 Birmingham Small Arms Co Ltd filed Critical Birmingham Small Arms Co Ltd
Priority to GB365837A priority Critical patent/GB486144A/en
Publication of GB486144A publication Critical patent/GB486144A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M25/00—Actuators for gearing speed-change mechanisms specially adapted for cycles
    • B62M25/02—Actuators for gearing speed-change mechanisms specially adapted for cycles with mechanical transmitting systems, e.g. cables, levers
    • B62M25/04—Actuators for gearing speed-change mechanisms specially adapted for cycles with mechanical transmitting systems, e.g. cables, levers hand actuated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K23/00—Rider-operated controls specially adapted for cycles, i.e. means for initiating control operations, e.g. levers, grips
    • B62K23/02—Rider-operated controls specially adapted for cycles, i.e. means for initiating control operations, e.g. levers, grips hand actuated
    • B62K23/06—Levers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Gear-Shifting Mechanisms (AREA)

Abstract

486,144. Controlling change-speed gearing. BIRMINGHAM SMALL ARMS CO., Ltd., PAGE, V., and PERKINS, H. Feb. 8, 1937, No. 3658. [Class 80 (ii)] Relates to change-speed selector-control, particularly for a motor-cycle, of the kind in which repeated strokes, in either direction, of a foot-operated lever 6 actuate oppositely acting pawls 11, producing corresponding stepwise displacements of a ratchet-toothed plate 14. In such an arrangement, the ratchetplate 14 is riveted to a toothed quadrant 15, meshing with a pinion on the change-speed selector cam-shaft 18, and having notches 19 engaged by a spring-detent 20 for locking the plate in gear and neutral positions. The ratchet-plate 14 and attached speed-selecting quadrant 15 are fast to a rock-shaft 2, on which are loosely mounted a plate 10 carrying the two pawls 11, and a sleeve 4 rigidly carrying the foot-lever 6 and a plate 7 having an axiallyprojecting lug 8 which, on initial movement of the foot-lever, presses on the tail 11a of one of the pawls, moving it into engagement with the ratchet-plate 14, whereafter continued movement of the foot-lever takes along the pawlcarrier 10 and the ratchet-plate 14 one step to effect a speed-change, the movement being limited by the plate 7 striking one of two fixed stops 9. After a change, the pawl -carrier 10 is returned to the central position, taking with it the foot-lever 6, under the influence of a torsion spring 22, the crossed legs of which engage either side of a pin 25 on the pawl-carrier 10 and a fixed peg 23 passing through a slot in the plate 7. The pawls 11 are lifted clear of the ratchetplate 14 by a coil-spring 26 between their tails 11a. Gear and neutral positions are indicated by a pointer 29, secured to the rock-shaft 2, neutral being indicated when the pointer 29 faces the projecting end of the peg 23. To adapt the mechanism for hand-control, the ratchet-plate and quadrant 14, 15 are replaced by a simple toothed quadrant having a squared boss for direct connection of a lever linked to a hand control-lever.
GB365837A 1937-02-08 1937-02-08 Improvements relating to gear change mechanism for motor vehicles Expired GB486144A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB365837A GB486144A (en) 1937-02-08 1937-02-08 Improvements relating to gear change mechanism for motor vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB365837A GB486144A (en) 1937-02-08 1937-02-08 Improvements relating to gear change mechanism for motor vehicles

Publications (1)

Publication Number Publication Date
GB486144A true GB486144A (en) 1938-05-31

Family

ID=9762470

Family Applications (1)

Application Number Title Priority Date Filing Date
GB365837A Expired GB486144A (en) 1937-02-08 1937-02-08 Improvements relating to gear change mechanism for motor vehicles

Country Status (1)

Country Link
GB (1) GB486144A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1119139B (en) * 1954-06-16 1961-12-07 Nsu Motorenwerke Ag For motor vehicles, in particular motorcycles, gear shifting device with pawls
US3421384A (en) * 1966-09-22 1969-01-14 Honda Gijutsu Kenkyusho Kk Change speed apparatus for a vehicle
US4510820A (en) * 1982-04-01 1985-04-16 Honda Giken Kogyo Kabushiki Kaisha Drum type switch-over mechanism for a speed change device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1119139B (en) * 1954-06-16 1961-12-07 Nsu Motorenwerke Ag For motor vehicles, in particular motorcycles, gear shifting device with pawls
US3421384A (en) * 1966-09-22 1969-01-14 Honda Gijutsu Kenkyusho Kk Change speed apparatus for a vehicle
US4510820A (en) * 1982-04-01 1985-04-16 Honda Giken Kogyo Kabushiki Kaisha Drum type switch-over mechanism for a speed change device

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