GB674556A - Improvements in change speed gears for bicycles and the like vehicles - Google Patents

Improvements in change speed gears for bicycles and the like vehicles

Info

Publication number
GB674556A
GB674556A GB15115/50A GB1511550A GB674556A GB 674556 A GB674556 A GB 674556A GB 15115/50 A GB15115/50 A GB 15115/50A GB 1511550 A GB1511550 A GB 1511550A GB 674556 A GB674556 A GB 674556A
Authority
GB
United Kingdom
Prior art keywords
bracket
sleeve
spring
flats
bicycles
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
GB15115/50A
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 GB674556A publication Critical patent/GB674556A/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
    • 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)
  • Gear-Shifting Mechanisms (AREA)

Abstract

674,556. Change-speed gearing. JUY, L. C. H. June 16, 1950 [Nov. 22, 1949], No. 15115/50. Class 80 (ii). In change-speed gearing for bicycles comprising an externally - threaded sleeve 2 axially adjusted in its carrying bracket 6 and a coil spring 1 acting both in compression and in torsion, the torsion of the spring is varied by engaging its end 8 in one or other of a number of peripheral notches 11 in a cup-shaped member 9 which is held against rotation relative to the bracket 6. As shown in Fig. 1, the sleeve 2 is adjustably threaded in the bracket 6 and locked by a nut 7, the adjustment being effected by turning a washer 3 engaging flats on the sleeve 2 so that the latter turns with the washer 3 but is slidable therein. The member 9 is pressed against the bracket 6 by the spring 1 and is held against rotation by a pin 10. As shown in Fig. 4, flats on the sleeve 2 prevent its rotation in the bracket 6 and axial adjustment is effected by a pair of nuts 14, 15, the member 9, which also engages the flats on the sleeve 2, being pressed against' the nut 15 by the spring 1.
GB15115/50A 1949-11-22 1950-06-16 Improvements in change speed gears for bicycles and the like vehicles Expired GB674556A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR674556X 1949-11-22

Publications (1)

Publication Number Publication Date
GB674556A true GB674556A (en) 1952-06-25

Family

ID=9018836

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15115/50A Expired GB674556A (en) 1949-11-22 1950-06-16 Improvements in change speed gears for bicycles and the like vehicles

Country Status (1)

Country Link
GB (1) GB674556A (en)

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