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GB703922A - Improvements in or relating to combined change-speed gear and brake hubs for bicyclewheels - Google Patents

Improvements in or relating to combined change-speed gear and brake hubs for bicyclewheels

Info

Publication number
GB703922A
GB703922A GB3049550A GB3049550A GB703922A GB 703922 A GB703922 A GB 703922A GB 3049550 A GB3049550 A GB 3049550A GB 3049550 A GB3049550 A GB 3049550A GB 703922 A GB703922 A GB 703922A
Authority
GB
United Kingdom
Prior art keywords
gear
brake
selector
ring
annulus
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
GB3049550A
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.)
Sturmey Archer Gears Ltd
Original Assignee
Sturmey Archer Gears Ltd
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 Sturmey Archer Gears Ltd filed Critical Sturmey Archer Gears Ltd
Priority to GB3049550A priority Critical patent/GB703922A/en
Publication of GB703922A publication Critical patent/GB703922A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
    • B62L5/00—Brakes, or actuating mechanisms therefor, controlled by back-pedalling
    • B62L5/10—Brakes, or actuating mechanisms therefor, controlled by back-pedalling the brakes being actuated through coacting cams and balls or rollers located in the rear wheel hub
    • B62L5/14—Brakes, or actuating mechanisms therefor, controlled by back-pedalling the brakes being actuated through coacting cams and balls or rollers located in the rear wheel hub the brakes being of disc type
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Structure Of Transmissions (AREA)

Abstract

703,922. Coaster hubs. STURMEY-ARCHER GEARS, Ltd., and BROWN, W. Dec. 14, 1951 [Dec. 14, 1950], No. 30495/50. Class 136(2) [Also in Group XXIV] A combined epicyclic change-speed gear and back-pedal operated brake hub for a bicycle comprises a stationary axle a, an epicyclic change-speed gear embodying a sun member j, planet carrier k and annulus 1 mounted on the axle including a driving member g and selector-controlled means m for coupling parts of the gear to the driving member and to the wheel hub i to obtain different gear ratios, relatively movable axially loadable brake elements c<SP>1</SP>, c<SP>2</SP> and a brake-actuating member o, turning with the part k of the gear, adapted to apply axial pressure to the brake assembly during backward rotation of the driving member g without producing axial pressure in either direction during forward rotation. The brake actuating member comprises a ring o mounted on a pair of extensions k<SP>2</SP> on the planet carrier k. Each extension has one inclined face k<SP>3</SP>, Fig. 2, and a square face k<SP>4</SP> and the ring o is formed on its inner face with lugs having faces o<SP>3</SP>, o<SP>4</SP>, complementary to those on the member k<SP>2</SP>. On back pedalling the inclined faces o<SP>3</SP>, k<SP>3</SP>, engage and compel the ring to move to the left, Fig. 1. Three gear ratios may be selectively obtained. High gear is obtained when the selector in engages bearing pins n on planet pinions k<SP>1</SP>, drive being transmitted to the shell i through driving pawls l<SP>3</SP> carried by the annulus 1. Middle gear is obtained through the same pinions l<SP>3</SP> when the selector m is engaged with dogs l<SP>1</SP> in the annulus. Low gear is obtained when the selector, while still engaged by the dogs 1<SP>1</SP> is moved axially to trip the pawls l<SP>3</SP>, whereupon pawls o<SP>1</SP> carried by the ring o transmit the drive to the hub shell i.
GB3049550A 1950-12-14 1950-12-14 Improvements in or relating to combined change-speed gear and brake hubs for bicyclewheels Expired GB703922A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3049550A GB703922A (en) 1950-12-14 1950-12-14 Improvements in or relating to combined change-speed gear and brake hubs for bicyclewheels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3049550A GB703922A (en) 1950-12-14 1950-12-14 Improvements in or relating to combined change-speed gear and brake hubs for bicyclewheels

Publications (1)

Publication Number Publication Date
GB703922A true GB703922A (en) 1954-02-10

Family

ID=10308569

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3049550A Expired GB703922A (en) 1950-12-14 1950-12-14 Improvements in or relating to combined change-speed gear and brake hubs for bicyclewheels

Country Status (1)

Country Link
GB (1) GB703922A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1081334B (en) * 1954-03-11 1960-05-05 Joseph Edmond Cole Epicyclic gears, especially for bicycles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1081334B (en) * 1954-03-11 1960-05-05 Joseph Edmond Cole Epicyclic gears, especially for bicycles

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