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GB2494915A - Derailleur for a bicycle - Google Patents

Derailleur for a bicycle Download PDF

Info

Publication number
GB2494915A
GB2494915A GB1116499.3A GB201116499A GB2494915A GB 2494915 A GB2494915 A GB 2494915A GB 201116499 A GB201116499 A GB 201116499A GB 2494915 A GB2494915 A GB 2494915A
Authority
GB
United Kingdom
Prior art keywords
text
drive shaft
helical drive
carrier wheel
bicycle
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.)
Withdrawn
Application number
GB1116499.3A
Other versions
GB201116499D0 (en
Inventor
Keith Firstbrook
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 GB1116499.3A priority Critical patent/GB2494915A/en
Publication of GB201116499D0 publication Critical patent/GB201116499D0/en
Publication of GB2494915A publication Critical patent/GB2494915A/en
Withdrawn legal-status Critical Current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
    • 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
    • B62M9/12—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 the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
    • B62M9/121—Rear derailleurs
    • 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
    • B62M9/12—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 the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
    • B62M9/121—Rear derailleurs
    • B62M9/122—Rear derailleurs electrically or fluid actuated; Controls thereof
    • 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
    • B62M9/12—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 the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
    • B62M9/121—Rear derailleurs
    • B62M9/124—Mechanisms for shifting laterally
    • 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
    • B62M9/12—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 the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
    • B62M9/121—Rear derailleurs
    • B62M9/125—Mounting the derailleur on the frame

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

The invention relates to a derailleur for a bicycle comprising a helical drive shaft 4 along which an inner (10 figure 3) and outer 3 carrier wheel moves as the shaft rotates thereby moving the chain from one sprocket to another. The derailleur may be mounted to the frame by a moulting bracket 17. The shaft may be rotated by an electric motor 1, operated by a control button 15.

Description

Description
Bicycle mechanism to move the chain from one sprocket to another This invention relates to a device for derailing the chain of a bicycle onto different sprockets by rotating a helical drive shaft clockwise or anti clockwise to move chain guide and carrier wheel to a different sprocket.
The rotating helical drive shaft can be rotated by an electrical motor and controlled with a switch or gears operated with a leaver and cable.
The invention will now be described solely by way of example and with reference to the accompanying drawings in which: Figure 1 shows an electric motor connected to the helical drive shaft, Figure 2 shows gears and a leaver and cable for means of rotating helical drive shaft Figure 3 shows outer moving wheel and inner wheel and stabilising bars Figure 4 shows section of outer wheel and exposed inner wheel with ball bearings and helical drive shaft 2.
Description
Figure 5 shows outer wheel with alternative chain guide In figure 1, shows a mechanism to move a bicycle chain from one sprocket to another by rotating 4, which is attached to a bicycle by 17, allowing 3, and 10 (fig 5) to traverse both ways on 4, using ball bearings 14 to locate on helical drive shaft 4 using stabilising bars 2 to locate onlO inner carrier wheel.
In figure 2, shows an alternative embodiment in which the helical drive shaft 4 can be rotated by means of rotating gears 8 and by moving leaver 9 by cable 13 In figure 3, shows stabiliser bars 2 inner carrier wheel 10 and outer moving carrier wheel 3 and ball bearings 14 In figure 4, shows helical drive 4, section of outer carrier wheel 3, ball bearings 14 In figure 5, shows inner carrier wheel 10 helical drive shaft 4 alternative chain location 11 3.

Claims (1)

  1. <claim-text>Claims 1. A derailing gear change mechanism with attachment for means of attaching to a bicycle, comprising of helical drive shaft that can be rotated,which allows a carrier wheel to move to alternative sprockets.</claim-text> <claim-text>2 A derailing gear change mechanism acording to claim 1, in which a carrier wheel compriseing of an inner and outer wheel are controlled by the rotation of a helical drive shaft.</claim-text> <claim-text>3 A derailing gear change mechanism acording to claim 1, in which the inner and outer carrier wheel has ball bearings for contact on a helical drive shaft.</claim-text> <claim-text>4 A derailing gear change mechanism acording to claim 1, in which the inner carrier wheel has stablising bars passing through its body.</claim-text>
GB1116499.3A 2011-09-23 2011-09-23 Derailleur for a bicycle Withdrawn GB2494915A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1116499.3A GB2494915A (en) 2011-09-23 2011-09-23 Derailleur for a bicycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1116499.3A GB2494915A (en) 2011-09-23 2011-09-23 Derailleur for a bicycle

Publications (2)

Publication Number Publication Date
GB201116499D0 GB201116499D0 (en) 2011-11-09
GB2494915A true GB2494915A (en) 2013-03-27

Family

ID=44993322

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1116499.3A Withdrawn GB2494915A (en) 2011-09-23 2011-09-23 Derailleur for a bicycle

Country Status (1)

Country Link
GB (1) GB2494915A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI843559B (en) * 2023-05-09 2024-05-21 峰平 林 Bicycle derailleur structure

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB509793A (en) * 1938-02-16 1939-07-21 Louis Camillis Improvements in shifting mechanism of variable speed chain gear for cycles and the like
GB1482565A (en) * 1973-11-09 1977-08-10 California Progressive Prod In Shift mechanism for derailleur drive
US4215872A (en) * 1979-02-07 1980-08-05 Clark Marion A Positive shift derailleur mechanism
EP1504989A1 (en) * 2003-08-05 2005-02-09 Campagnolo S.R.L. Actuator device and relative nut for a bicycle gearshift, with an elastically yieldind member
US20060270499A1 (en) * 2005-05-31 2006-11-30 Kilshaw Richard J Bicycle gear set
CN102398665A (en) * 2010-09-14 2012-04-04 林昌慧 A sleeve type rear derailleur
FR2972704A1 (en) * 2011-03-18 2012-09-21 Franck Jean Savard Rear derailleur for bicycle, has cables connected to speed changing unit, and speed selection drum equipped with speed indexing notches, which cooperate with indexing finger actuated by spring

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB509793A (en) * 1938-02-16 1939-07-21 Louis Camillis Improvements in shifting mechanism of variable speed chain gear for cycles and the like
GB1482565A (en) * 1973-11-09 1977-08-10 California Progressive Prod In Shift mechanism for derailleur drive
US4215872A (en) * 1979-02-07 1980-08-05 Clark Marion A Positive shift derailleur mechanism
EP1504989A1 (en) * 2003-08-05 2005-02-09 Campagnolo S.R.L. Actuator device and relative nut for a bicycle gearshift, with an elastically yieldind member
US20060270499A1 (en) * 2005-05-31 2006-11-30 Kilshaw Richard J Bicycle gear set
CN102398665A (en) * 2010-09-14 2012-04-04 林昌慧 A sleeve type rear derailleur
FR2972704A1 (en) * 2011-03-18 2012-09-21 Franck Jean Savard Rear derailleur for bicycle, has cables connected to speed changing unit, and speed selection drum equipped with speed indexing notches, which cooperate with indexing finger actuated by spring

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI843559B (en) * 2023-05-09 2024-05-21 峰平 林 Bicycle derailleur structure

Also Published As

Publication number Publication date
GB201116499D0 (en) 2011-11-09

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)