GB2160272A - A 100 speed drive system for bicycles - Google Patents

A 100 speed drive system for bicycles Download PDF

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Publication number
GB2160272A
GB2160272A GB08415117A GB8415117A GB2160272A GB 2160272 A GB2160272 A GB 2160272A GB 08415117 A GB08415117 A GB 08415117A GB 8415117 A GB8415117 A GB 8415117A GB 2160272 A GB2160272 A GB 2160272A
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GB
United Kingdom
Prior art keywords
chain
sprocket
speed
gears
sprockets
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.)
Granted
Application number
GB08415117A
Other versions
GB8415117D0 (en
GB2160272B (en
Inventor
George Hilbert Parkinson
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 GB08415117A priority Critical patent/GB2160272B/en
Publication of GB8415117D0 publication Critical patent/GB8415117D0/en
Publication of GB2160272A publication Critical patent/GB2160272A/en
Application granted granted Critical
Publication of GB2160272B publication Critical patent/GB2160272B/en
Expired legal-status Critical Current

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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
    • 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
    • B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
    • B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
    • B62M11/14—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears
    • B62M11/16—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears built in, or adjacent to, the ground-wheel hub

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transmissions By Endless Flexible Members (AREA)

Abstract

This invention relates to a multiple gear system for bicycles. This system combines three sets of gears. The first set of gears is a planetary gear-box on the rear wheel hub axle. This is driven by a splined-threaded adaptor, on which is mounted the second set of gears of the Derailleur type, incorporating a multiple chain sprocket cluster fitted externally on the rear wheel axle. These sprockets are engaged directly by the drive chain - which engages directly with the third set of gears, a multiple chain-wheel cluster fitted to the pedal crank. The planetary hub has five ratios, there are five sprockets in the sprocket cluster on the rear axle and four sprockets fitted to the pedal crank, giving 100 ratios.

Description

SPECIFICATION A 100 speed drive system for bicycles Any one of the four chain-wheels which are mounted on the pedal crank assembly (see drawing number 2/2), can be selected independently by a chain shift mechanism, to drive via a chain onto a five sprocket Derailleur chain block assembly on the rear wheel.
This chain block is mounted on a specially threaded adaptor (see drawing number 1/2).
This adaptor provides the drive input to the five speed "Sturmey Archer" (RTM) type of geared driving hub of the rear wheel of the bicycle.
As any one of the five sprockets of the Derailleur unit can be selected independently, and any one of the five gear ratios of the geared hub can also be selected independently, then the number of different gear/ sprocket/chain-wheel combinations is 4 X 5 X 5 giving a total of 100 different combinations i.e. a "100 speed system".
1. I claim that a 100 speed drive system for a bicycle is a gear/sprocket/chain-wheel system giving 100 different drive combinations.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (1)

  1. **WARNING** start of CLMS field may overlap end of DESC **.
    SPECIFICATION A 100 speed drive system for bicycles Any one of the four chain-wheels which are mounted on the pedal crank assembly (see drawing number 2/2), can be selected independently by a chain shift mechanism, to drive via a chain onto a five sprocket Derailleur chain block assembly on the rear wheel.
    This chain block is mounted on a specially threaded adaptor (see drawing number 1/2).
    This adaptor provides the drive input to the five speed "Sturmey Archer" (RTM) type of geared driving hub of the rear wheel of the bicycle.
    As any one of the five sprockets of the Derailleur unit can be selected independently, and any one of the five gear ratios of the geared hub can also be selected independently, then the number of different gear/ sprocket/chain-wheel combinations is 4 X 5 X 5 giving a total of 100 different combinations i.e. a "100 speed system".
    1. I claim that a 100 speed drive system for a bicycle is a gear/sprocket/chain-wheel system giving 100 different drive combinations.
GB08415117A 1984-06-14 1984-06-14 A 100 speed drive system for bicycles Expired GB2160272B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08415117A GB2160272B (en) 1984-06-14 1984-06-14 A 100 speed drive system for bicycles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08415117A GB2160272B (en) 1984-06-14 1984-06-14 A 100 speed drive system for bicycles

Publications (3)

Publication Number Publication Date
GB8415117D0 GB8415117D0 (en) 1984-07-18
GB2160272A true GB2160272A (en) 1985-12-18
GB2160272B GB2160272B (en) 1988-12-21

Family

ID=10562395

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08415117A Expired GB2160272B (en) 1984-06-14 1984-06-14 A 100 speed drive system for bicycles

Country Status (1)

Country Link
GB (1) GB2160272B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992013751A1 (en) * 1991-02-11 1992-08-20 Giuseppe Gabrielli A bicycle with multiplying gears and front gearshift
GB2317659A (en) * 1996-09-26 1998-04-01 Ashraf Mahfouz Abbas 50-Speed bicycle gearing
GB2317657A (en) * 1996-09-26 1998-04-01 Ashraf Mahfouz Abbas 50-speed bicycle gearing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1451834A (en) * 1973-02-23 1976-10-06 Peyrard M Devices for driving chains
GB2062139A (en) * 1979-10-09 1981-05-20 Fichtel & Sachs Ag Drive hub for bicycles or the like
GB2062142A (en) * 1979-10-29 1981-05-20 Deal M Variable diameter transmission wheel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1451834A (en) * 1973-02-23 1976-10-06 Peyrard M Devices for driving chains
GB2062139A (en) * 1979-10-09 1981-05-20 Fichtel & Sachs Ag Drive hub for bicycles or the like
GB2062142A (en) * 1979-10-29 1981-05-20 Deal M Variable diameter transmission wheel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992013751A1 (en) * 1991-02-11 1992-08-20 Giuseppe Gabrielli A bicycle with multiplying gears and front gearshift
GB2317659A (en) * 1996-09-26 1998-04-01 Ashraf Mahfouz Abbas 50-Speed bicycle gearing
GB2317657A (en) * 1996-09-26 1998-04-01 Ashraf Mahfouz Abbas 50-speed bicycle gearing
GB2317657B (en) * 1996-09-26 2001-05-02 Ashraf Mahfouz Abbas Two-stage bicycle speed change mechanism

Also Published As

Publication number Publication date
GB8415117D0 (en) 1984-07-18
GB2160272B (en) 1988-12-21

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee