GB744689A - Improvements in or relating to pedal cycles - Google Patents

Improvements in or relating to pedal cycles

Info

Publication number
GB744689A
GB744689A GB1855253A GB1855253A GB744689A GB 744689 A GB744689 A GB 744689A GB 1855253 A GB1855253 A GB 1855253A GB 1855253 A GB1855253 A GB 1855253A GB 744689 A GB744689 A GB 744689A
Authority
GB
United Kingdom
Prior art keywords
wheel
chain wheel
chain
crankshaft
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
GB1855253A
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 GB1855253A priority Critical patent/GB744689A/en
Publication of GB744689A publication Critical patent/GB744689A/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
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
    • B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
    • B62M9/105—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like involving front sprocket chain-wheels engaged by the chain, belt or the like
    • 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
    • B62M1/00—Rider propulsion of wheeled vehicles

Landscapes

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

Abstract

744,689. Cycle driving-mechanism.. MAYERS, H. A. July 5, 1954 [July 3, 1953], No. 18552/53. Class 136 (2). A pedal cycle is driven by means which include a chain wheel 13 fixedly secured to the hub 12 of the rear wheel 11, a pedal operated crankshaft 16, a second chain wheel 15 mounted concentrically with the crankshaft 16 and connected with the hub chain wheel 13 by a driving chain 14 and a free wheel mechanism 23, 25 comprising a direct automatic uni-directional coupling between the chain wheel 15 and the crankshaft 16. The chain wheel 15 is in the form of a toothed annulus having its inner circumference 20 supported on a roller bearing 21 carried by a plate 22 mounted on a boss 30 integral with the crank 17 and connected to the crank shaft 16. The chain wheel 15 carries a number of pawls 23 which are urged in an inward direction by springs 24 so as to engage with a ratchet wheel 25 secured by screws 26 to the plate 22. The rear wheel 11 is intended to be driven by a power unit having its, driving member in frictional engagement with the tyre 9 of the wheel 11. During operation of the power unit in the direction of the arrow 31 (Fig. 2) the chain wheel 15 will be caused to rotate. If on pedalling the crank shaft 16 and ratchet wheel 25 are rotated at a higher speed than the chain wheel 15, the ratchet wheel will engage the pawls 23 and drive the chain wheel 15 and thus the wheel 11.
GB1855253A 1953-07-03 1953-07-03 Improvements in or relating to pedal cycles Expired GB744689A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1855253A GB744689A (en) 1953-07-03 1953-07-03 Improvements in or relating to pedal cycles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1855253A GB744689A (en) 1953-07-03 1953-07-03 Improvements in or relating to pedal cycles

Publications (1)

Publication Number Publication Date
GB744689A true GB744689A (en) 1956-02-15

Family

ID=10114395

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1855253A Expired GB744689A (en) 1953-07-03 1953-07-03 Improvements in or relating to pedal cycles

Country Status (1)

Country Link
GB (1) GB744689A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2655447A1 (en) * 1975-12-08 1977-06-16 Shimano Industrial Co GEAR SHIFTING FREE WHEEL FOR A BICYCLE
FR2921630A1 (en) * 2007-10-01 2009-04-03 Koxx Sarl Sarl Pedal assembly for e.g. mountain bicycle, has free wheel system placed between plates and cranks so as to drive rotation of plates by cranks in direction and to separate plates in other direction
ES2460816A1 (en) * 2014-01-30 2014-05-14 Juan Carlos PARENTE LÓPEZ Transmission mechanism to optimize the change of gears on bicycles (Machine-translation by Google Translate, not legally binding)
WO2015114191A1 (en) * 2014-01-30 2015-08-06 Parente López Juan Carlos Transmission mechanism for optimising gear changes in bicycles
CN109050779A (en) * 2018-10-19 2018-12-21 禹州市竹园机械制造有限公司 A kind of bicycle freewheel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2655447A1 (en) * 1975-12-08 1977-06-16 Shimano Industrial Co GEAR SHIFTING FREE WHEEL FOR A BICYCLE
FR2921630A1 (en) * 2007-10-01 2009-04-03 Koxx Sarl Sarl Pedal assembly for e.g. mountain bicycle, has free wheel system placed between plates and cranks so as to drive rotation of plates by cranks in direction and to separate plates in other direction
ES2460816A1 (en) * 2014-01-30 2014-05-14 Juan Carlos PARENTE LÓPEZ Transmission mechanism to optimize the change of gears on bicycles (Machine-translation by Google Translate, not legally binding)
WO2015114191A1 (en) * 2014-01-30 2015-08-06 Parente López Juan Carlos Transmission mechanism for optimising gear changes in bicycles
CN109050779A (en) * 2018-10-19 2018-12-21 禹州市竹园机械制造有限公司 A kind of bicycle freewheel

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