GB693491A - Improved foot-operated gear change mechanism for motor cycles - Google Patents

Improved foot-operated gear change mechanism for motor cycles

Info

Publication number
GB693491A
GB693491A GB7239/50A GB723950A GB693491A GB 693491 A GB693491 A GB 693491A GB 7239/50 A GB7239/50 A GB 7239/50A GB 723950 A GB723950 A GB 723950A GB 693491 A GB693491 A GB 693491A
Authority
GB
United Kingdom
Prior art keywords
gear
pedal
spring
carrier
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
GB7239/50A
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.)
Francis & Barnett Ltd
Original Assignee
Francis & Barnett 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 Francis & Barnett Ltd filed Critical Francis & Barnett Ltd
Priority to GB7239/50A priority Critical patent/GB693491A/en
Publication of GB693491A publication Critical patent/GB693491A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G7/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with one single controlled member; Details thereof
    • G05G7/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with one single controlled member; Details thereof characterised by special provisions for conveying or converting motion, or for acting at a distance
    • G05G7/08—Manually-actuated control mechanisms provided with one single controlling member co-operating with one single controlled member; Details thereof characterised by special provisions for conveying or converting motion, or for acting at a distance in which repeated movement of the controlling member moves the controlling member through a cycle of distinct positions
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)

Abstract

693,491. Change-speed control. FRANCIS & BARNETT, Ltd., and KING, W. A. March 22, 1951 [March 23, 1950], No. 7239/50. Class 80 (ii). In a motor cycle gear-box of the kind in which a pedal operates a gear shifting element through a ratchet mechanism and spring means returns the pedal to an inoperative position after each gear change, a rotary member 12 disposed adjacent to, and rotatable about the axis of, a gear striking fork 11 pivoted about an axis at right angles to the gear shafts has rotatably mounted thereon a carrier member 15 having pawls 17 (only one of which is visible in the Figure) engageable with teeth 19 on the member 11 by initial movement of the operating pedal further movement then effecting a gear change. The carrier 15 has lugs 16 which coact with the ball end 6 of a lever 5 carried on a shaft 2 which is rotatable, in a bearing 8 supported in the gear casing, by a pedal 1. The lever 5, and hence the pedal 1 also, is urged by a spring 7 to a position in which a lug 9 thereon lies within a stop 10 on the gear casing. A similar spring 22 engages a stop 27 and a lug 25 on an arm 14 integral with the member 12 to resiliently maintain that member in an inoperative position. Lugs 28 on the arm 14 limit the movement of the member 12. A spring loaded plunger 30 engages a notched segment 29 on the member 11 which is thereby held in positions corresponding to the gears selected. The axes of rotation of the carrier member 15 and the rotary member 12 are preferably perpendicular.
GB7239/50A 1950-03-23 1950-03-23 Improved foot-operated gear change mechanism for motor cycles Expired GB693491A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7239/50A GB693491A (en) 1950-03-23 1950-03-23 Improved foot-operated gear change mechanism for motor cycles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7239/50A GB693491A (en) 1950-03-23 1950-03-23 Improved foot-operated gear change mechanism for motor cycles

Publications (1)

Publication Number Publication Date
GB693491A true GB693491A (en) 1953-07-01

Family

ID=9829310

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7239/50A Expired GB693491A (en) 1950-03-23 1950-03-23 Improved foot-operated gear change mechanism for motor cycles

Country Status (1)

Country Link
GB (1) GB693491A (en)

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