GB415272A - Improvements in and relating to manually or pedal operated transmission systems for velocipedes - Google Patents

Improvements in and relating to manually or pedal operated transmission systems for velocipedes

Info

Publication number
GB415272A
GB415272A GB26080/33A GB2608033A GB415272A GB 415272 A GB415272 A GB 415272A GB 26080/33 A GB26080/33 A GB 26080/33A GB 2608033 A GB2608033 A GB 2608033A GB 415272 A GB415272 A GB 415272A
Authority
GB
United Kingdom
Prior art keywords
disc
members
sprocket wheel
slots
springs
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
GB26080/33A
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
Publication of GB415272A publication Critical patent/GB415272A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
    • F16D3/64—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic elements arranged between substantially-radial walls of both coupling parts
    • F16D3/66—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic elements arranged between substantially-radial walls of both coupling parts the elements being metallic, e.g. in the form of coils
    • 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
    • B62M1/10—Rider propulsion of wheeled vehicles involving devices which enable the mechanical storing and releasing of energy occasionally, e.g. arrangement of flywheels
    • B62M1/105—Rider propulsion of wheeled vehicles involving devices which enable the mechanical storing and releasing of energy occasionally, e.g. arrangement of flywheels using elastic elements

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Gears, Cams (AREA)

Abstract

415,272. Flexible sprockets. ENDERSEN, J., Farrenferris, Co. Cork, Irish Free State. Sept. 21, 1933, No. 26080. Convention date, June 14. [Class 80 (ii).] In rotary-crank driving-mechanism for cycles, of the type'comprising a resilient transmission, the driving sprocket-wheel is in the form of a disc rotatably mounted between two disc-like members fixed relatively to the cranks, springs or other resilient devices being interposed between the sprocket wheel and the disc-like members and mounted in arcuate slots in the sprocket wheel registering with arcuate slots or embossed recesses in the disc-like members. The pedal &c. cranks are fixed to a disc member 1 which is secured by screws 10 to a second disc member 9, the sprocket wheel 3 being mounted between the outer parts of the discs so as to be free to rotate on a shoulder 4 on the member 1. Springs 7 or other resilient devices, such as rubber blocks encased in collapsable metal tubes, are mounted in slots 6 in the sprocket wheel 3 and in recesses 5, 5<a> on the opposite faces of the members 1, 9. To facilitate assembly of the springs, the recesses 5, 5<a> are slightly longer than the slots 6, and when the springs are in position they are compressed by relative rotation of the parts, a screw stud being then inserted through holes in the members 1, 9 and through a slot 13 in the sprocket wheel, and the parts allowed to rotate in the reverse direction until the screw stud engages the end of the slot 13. In a modification, the recesses 5, 5<a> are replaced by beveledged slots.
GB26080/33A 1933-06-14 1933-09-21 Improvements in and relating to manually or pedal operated transmission systems for velocipedes Expired GB415272A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IE415272X 1933-06-14
IE642175X 1933-06-14
IE415636X 1933-12-09

Publications (1)

Publication Number Publication Date
GB415272A true GB415272A (en) 1934-08-23

Family

ID=27625238

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26080/33A Expired GB415272A (en) 1933-06-14 1933-09-21 Improvements in and relating to manually or pedal operated transmission systems for velocipedes

Country Status (2)

Country Link
FR (1) FR774262A (en)
GB (1) GB415272A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0203054A2 (en) * 1985-04-18 1986-11-26 Jeannée, Wolfgang Crank-gear
US4753127A (en) * 1985-08-12 1988-06-28 Ernst Baumann Pedal crank mechanism comprising a sprocket wheel
FR2615473A1 (en) * 1987-05-21 1988-11-25 Shimano Industrial Co EMITTED WHEEL FOR BICYCLE
EP0392063A1 (en) * 1989-04-14 1990-10-17 Blättler, Arthur Crautz gearing to overcome dead-centre positions
FR2645825A1 (en) * 1989-04-18 1990-10-19 Floret Gaston Automatic device for improving the tractive power of the pedal and bottom bracket assembly of a bicycle
FR2682350A1 (en) * 1991-10-15 1993-04-16 Chabiland Michel Semi-rigid pedal and crank mechanism for cycles
WO2003000542A1 (en) * 2001-06-26 2003-01-03 Gerhard Hilber Pedal crank drive mechanism for a bicycle
EP4385875A1 (en) * 2022-12-12 2024-06-19 Exedy Corporation Bicycle power transmission device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4711452A (en) * 1984-10-24 1987-12-08 International Game Technology (Igt) Amusement machine

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0203054A2 (en) * 1985-04-18 1986-11-26 Jeannée, Wolfgang Crank-gear
EP0203054A3 (en) * 1985-04-18 1987-04-15 Jeannée, Wolfgang Crank-gear
US4753127A (en) * 1985-08-12 1988-06-28 Ernst Baumann Pedal crank mechanism comprising a sprocket wheel
US4869709A (en) * 1987-05-21 1989-09-26 Shimano Industrial Company Limited Driving gear for a bicycle
DE3817576A1 (en) * 1987-05-21 1988-12-08 Shimano Industrial Co DRIVE GEAR FOR A BICYCLE
GB2205918A (en) * 1987-05-21 1988-12-21 Shimano Industrial Co Driving gear for a bicycle
FR2615473A1 (en) * 1987-05-21 1988-11-25 Shimano Industrial Co EMITTED WHEEL FOR BICYCLE
GB2205918B (en) * 1987-05-21 1992-01-22 Shimano Industrial Co Driving gear for a bicycle
EP0392063A1 (en) * 1989-04-14 1990-10-17 Blättler, Arthur Crautz gearing to overcome dead-centre positions
FR2645825A1 (en) * 1989-04-18 1990-10-19 Floret Gaston Automatic device for improving the tractive power of the pedal and bottom bracket assembly of a bicycle
FR2682350A1 (en) * 1991-10-15 1993-04-16 Chabiland Michel Semi-rigid pedal and crank mechanism for cycles
WO1993008071A1 (en) * 1991-10-15 1993-04-29 Michel Chabiland Semi-rigid bottom bracket for bicycles
WO2003000542A1 (en) * 2001-06-26 2003-01-03 Gerhard Hilber Pedal crank drive mechanism for a bicycle
EP4385875A1 (en) * 2022-12-12 2024-06-19 Exedy Corporation Bicycle power transmission device

Also Published As

Publication number Publication date
FR774262A (en) 1934-12-03

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