GB684211A - Improvements in the means controlling the tensioning of the chain in bicycle and thelike chain shifting change speed gears - Google Patents

Improvements in the means controlling the tensioning of the chain in bicycle and thelike chain shifting change speed gears

Info

Publication number
GB684211A
GB684211A GB3023/51A GB302351A GB684211A GB 684211 A GB684211 A GB 684211A GB 3023/51 A GB3023/51 A GB 3023/51A GB 302351 A GB302351 A GB 302351A GB 684211 A GB684211 A GB 684211A
Authority
GB
United Kingdom
Prior art keywords
chain
cable
arm
spring
tensioning
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
GB3023/51A
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 GB684211A publication Critical patent/GB684211A/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
    • B62M9/12—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
    • B62M9/1244—Mechanisms for shifting laterally limiting or positioning the movement
    • 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
    • B62M9/127—Mounting or guiding of cables
    • 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
    • B62M2009/12413—Rear derailleur comprising telescoping mechanisms

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Transmissions By Endless Flexible Members (AREA)

Abstract

684,211. Chain-shift change-speed gearing. JUY, L. C. H. Feb. 7, 1951 [July 11, 1950], No. 3023/51. Class 80 (ii). In chain shift change-speed gearing of the type in which a driving chain 6, Fig. 1, is alternatively engaged with either of two sprockets 7, 8 by the usual transverse reciprocating means, a pivotable spring urged arm 2 carries a first guide sprocket and a spring urged pivotable tensioning arm 5 on which is mounted a further guide sprocket, the spring means acting upon the tensioning arm 5 being controlled in such a way that alteration in the relative angular position of the arms 2, 5 occasioned by a change of speed does not affect the tension in the driving chain. The spring means acting on the tensioning arm 5 comprises a coil spring 4, Fig. 6, one end 4' of which is engaged in one or other of several notches in a cup shaped member 9 attached to the tensioning arm, while the other end 4<SP>2</SP> has secured to it a cable 13. The cable 13 lies in a groove in a rotatable pulley 10 and at 14 enters a sheath 15 through which passes also a cable 16, controlling the transverse reciprocating movement of the arm 5 in the normal way to change speed, the two cables being joined to a single control cable 17. When the chain shift mechanism is actuated, the cable 13 is simultaneously moved so that the variation of the tension in the spring 4 is automatically compensated, despite the alteration in the relaytive angular positions of the several parts. A stop 18, Fig. 1, is provided to limit the rearward travel of the carrier arm 2. Specifications 662,003 and 665,167 are referred to.
GB3023/51A 1950-07-11 1951-02-07 Improvements in the means controlling the tensioning of the chain in bicycle and thelike chain shifting change speed gears Expired GB684211A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR684211X 1950-07-11

Publications (1)

Publication Number Publication Date
GB684211A true GB684211A (en) 1952-12-10

Family

ID=9024329

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3023/51A Expired GB684211A (en) 1950-07-11 1951-02-07 Improvements in the means controlling the tensioning of the chain in bicycle and thelike chain shifting change speed gears

Country Status (1)

Country Link
GB (1) GB684211A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2839939A (en) * 1954-06-11 1958-06-24 Juy Lucien Charles Hippolyte Change-speed gear
FR2581957A1 (en) * 1985-05-20 1986-11-21 Shimano Industrial Co REAR DERAILLEUR FOR A BICYCLE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2839939A (en) * 1954-06-11 1958-06-24 Juy Lucien Charles Hippolyte Change-speed gear
FR2581957A1 (en) * 1985-05-20 1986-11-21 Shimano Industrial Co REAR DERAILLEUR FOR A BICYCLE

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