GB341837A - Improvements in or relating to pedal crank driving mechanism - Google Patents

Improvements in or relating to pedal crank driving mechanism

Info

Publication number
GB341837A
GB341837A GB1977430A GB1977430A GB341837A GB 341837 A GB341837 A GB 341837A GB 1977430 A GB1977430 A GB 1977430A GB 1977430 A GB1977430 A GB 1977430A GB 341837 A GB341837 A GB 341837A
Authority
GB
United Kingdom
Prior art keywords
crank
pedal
pivoted
arm
driving
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
GB1977430A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1977430A priority Critical patent/GB341837A/en
Publication of GB341837A publication Critical patent/GB341837A/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
    • B62M3/00—Construction of cranks operated by hand or foot
    • B62M3/02—Construction of cranks operated by hand or foot of adjustable length
    • B62M3/04—Construction of cranks operated by hand or foot of adjustable length automatically adjusting

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

341,837. Pedal crank driving- mechanism. PAYNE, A. E. H., Mons, Leinster Walk, Kildare, Ireland. June 30, 1930, No. 19774. [Class 136 (ii).] In pedal-crank driving-mechanism for cycles &c. each pedal is mounted on a crank 5 that is pivoted at 29 to a short arm 3 fixed on the usual crank shaft 2, the crank 5 being adapted to rock relatively to the short arm 3 between the limit stops 7, 8 of a sleeve or the like, without appreciably varying the throw, the pivotal connection being so located that each driven pedal obtains additional leverage at certain parts of the stroke and the driving actions of the two pedals overlap, dead-centre positions being avoided. The crank 5 is moved from the stop 7 to the stop 8 by means of an antifriction wheel 13 on a member 10, which is pivoted at 38 to the arm 3, and is actuated by means of an eccentric cam 17 bolted to the cycle &c. frame and acting on an antifriction wheel on the same shaft 39 as the wheel 13. The crank 5 is pivoted on a spindle secured to the arm 3 and formed with an external thread to which lubricant is passed through radial holes leading from a central bore in the spindle.
GB1977430A 1930-06-30 1930-06-30 Improvements in or relating to pedal crank driving mechanism Expired GB341837A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1977430A GB341837A (en) 1930-06-30 1930-06-30 Improvements in or relating to pedal crank driving mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1977430A GB341837A (en) 1930-06-30 1930-06-30 Improvements in or relating to pedal crank driving mechanism

Publications (1)

Publication Number Publication Date
GB341837A true GB341837A (en) 1931-01-22

Family

ID=10134994

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1977430A Expired GB341837A (en) 1930-06-30 1930-06-30 Improvements in or relating to pedal crank driving mechanism

Country Status (1)

Country Link
GB (1) GB341837A (en)

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