GB633969A - A new or improved control for variable speed gears on cycles - Google Patents

A new or improved control for variable speed gears on cycles

Info

Publication number
GB633969A
GB633969A GB2294747A GB2294747A GB633969A GB 633969 A GB633969 A GB 633969A GB 2294747 A GB2294747 A GB 2294747A GB 2294747 A GB2294747 A GB 2294747A GB 633969 A GB633969 A GB 633969A
Authority
GB
United Kingdom
Prior art keywords
segment
pawl
lever
tooth
move
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
GB2294747A
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.)
HERCULES CYCLE AND MOTOR COMPA
Original Assignee
HERCULES CYCLE AND MOTOR COMPA
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 HERCULES CYCLE AND MOTOR COMPA filed Critical HERCULES CYCLE AND MOTOR COMPA
Priority to GB2294747A priority Critical patent/GB633969A/en
Publication of GB633969A publication Critical patent/GB633969A/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)
  • Mechanical Control Devices (AREA)

Abstract

633,969. Control lever mechanism. HERCULES CYCLE & MOTOR CO., Ltd., and YAPP, T. A. Aug. 19, 1947, No. 22947. [Class 136 (i)]. A control of the type adapted to be mounted on the handle-bars, or on one of the frame members of a cycle and connected to the gear selecting mechanism by a flexible cable which is under tension except when top gear is engaged comprises a finger lever 17 and a plate or segment 23 to which the cable 28 is connected each mounted for purely angular movement about a fixed pivot 31, the finger lever having on one edge angularly spaced projections 20, 21 between which lies a peg 26 on the segment and the segment having on its periphery angularly spaced teeth 24, 25 co-operating with a spring pressed pivoted pawl 34 which is adapted to be engaged by one of the projections 20 or 21 on the finger lever to move the pawl clear of the teeth on the segment when the lever is moved in a direction to release the cable. The pawl 34 is pivotally mounted on a stud 35 and is urged by a spring 36 to cause a tooth 37 on the pawl to engage one of the teeth 24 or 25 in the segment. An extension of the pawl terminates in a nose 38. To change from bottom gear, Fig. 3, to normal gear, Fig. 4, the lever 17 is moved in an anti-clockwise direction causing the projection 20 to engage the tooth 37 and move the pawl outwardly against the spring and clear of the tooth 24. The tension in the cable 28 causes the segment to move in an anti-clockwise direction to the position shown in Fig. 4. The horn 21 acting on the nose 38 effects the change from normal to top gear. To change down, the lever 17 is moved clockwise and the engagement of the peg 26 with projection 20 causes the segment to move angularly with the lever until the pawl rides over and engages with the tooth 25. Further clockwise rotation of the lever causes the segment tooth 24 to engage with the pawl.
GB2294747A 1947-08-19 1947-08-19 A new or improved control for variable speed gears on cycles Expired GB633969A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2294747A GB633969A (en) 1947-08-19 1947-08-19 A new or improved control for variable speed gears on cycles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2294747A GB633969A (en) 1947-08-19 1947-08-19 A new or improved control for variable speed gears on cycles

Publications (1)

Publication Number Publication Date
GB633969A true GB633969A (en) 1949-12-30

Family

ID=10187629

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2294747A Expired GB633969A (en) 1947-08-19 1947-08-19 A new or improved control for variable speed gears on cycles

Country Status (1)

Country Link
GB (1) GB633969A (en)

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