GB779933A - Two-speed coaster hub for velocipedes and the like - Google Patents

Two-speed coaster hub for velocipedes and the like

Info

Publication number
GB779933A
GB779933A GB23465/55A GB2346555A GB779933A GB 779933 A GB779933 A GB 779933A GB 23465/55 A GB23465/55 A GB 23465/55A GB 2346555 A GB2346555 A GB 2346555A GB 779933 A GB779933 A GB 779933A
Authority
GB
United Kingdom
Prior art keywords
clutch
hub
driving member
faces
fixed
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
GB23465/55A
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.)
Bendix Aviation Corp
Original Assignee
Bendix Aviation Corp
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 Bendix Aviation Corp filed Critical Bendix Aviation Corp
Publication of GB779933A publication Critical patent/GB779933A/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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
    • F16H61/0293—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being purely mechanical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2718/00—Mechanisms for speed-change of planetary gearing, the speed change control being dependent on function parameters of the gearing
    • F16H2718/18—Control dependent on torque
    • F16H2718/20—Control dependent on torque only the toothed wheels remain engaged
    • F16H2718/22—Control dependent on torque only the toothed wheels remain engaged the control being mechanical

Landscapes

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

Abstract

779,933. Coaster hubs. BENDIX AVIATION CORPORATION. Aug. 15, 1955 [Sept. 1, 1954], No. 23465/55. Class 136(2). [Also in Group XXIV] A two speed coaster hub includes primary means for rotating a hub from a driving member through a primary clutch which is engaged by forward rotation of the driving member and secondary means for rotating the hub from the driving member through a speed reducing gearing and a secondary self tightening clutch, there being provided means to limit the torque capacity of the primary clutch and means responsive to slippage of the primary clutch for causing engagement of the secondary clutch. A driving member 14 with a sprocket 15 has internal teeth 26 meshing planet gears 23 engaging a sun gear 22 rigid with a member 18 fixed on the stationary axle 1. A low speed clutch member 37 is threaded on a screw shaft 12 fixed to the planet carrier and a high speed clutch member 29 is threaded on a screwed sleeve 16 fixed to the driving member 14. Conical clutch faces 31, 38 on the clutch members 29, 37, co-operate with corresponding faces 32, 39 on a sleeve 33 slidably splined to the wheel hub 9. Normally, rotation of the driving member 14 screws the clutch member 29 to the left against an abutment 35 to engage the clutch faces 31, 32, to drive the hub 9 in top gear. The pressure between the clutch faces is determined by a spring 34. Should the clutch slip to an extent that the screw shaft 12 rotates faster than the hub then the clutch member 37 screws to the left to engage clutch faces 38, 39 and move the sleeve 33 to the left to fully compress the spring 34 and disengage the clutch 31, 32. The drive is then in low gear. When the resistance torque is reduced the drive passes automatically again into top gear. The clutch members 29, 37 are frictionally engaged by drag members 41, 42 to enable them to function properly. If the driving member is rotated backwardly the clutch member 37 moves to the right to force a member 6 towards a fixed member 2 to which it is splined so that brake blocks 8 are forced radially outwards to bear against the inside of the hub 9. In a modification means are provided for adjusting the initial pressure of the spring 34 to regulate the torque required to cause the device to shift down to low gear.
GB23465/55A 1954-09-01 1955-08-15 Two-speed coaster hub for velocipedes and the like Expired GB779933A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US779933XA 1954-09-01 1954-09-01

Publications (1)

Publication Number Publication Date
GB779933A true GB779933A (en) 1957-07-24

Family

ID=22141217

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23465/55A Expired GB779933A (en) 1954-09-01 1955-08-15 Two-speed coaster hub for velocipedes and the like

Country Status (1)

Country Link
GB (1) GB779933A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139714A (en) * 1983-03-07 1984-11-14 Maeda Ind One way clutch mechanism for bicycle freewheel hub

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139714A (en) * 1983-03-07 1984-11-14 Maeda Ind One way clutch mechanism for bicycle freewheel hub

Similar Documents

Publication Publication Date Title
GB1220200A (en) A device for limiting a torque to a predetermined maximum value
GB1021130A (en) Infinitely variable transmission
GB1460578A (en) Epicyclic gear ''semblies
GB1375323A (en)
US1841284A (en) Friction clutch
US2890601A (en) Speed change transmission
US2172991A (en) Power transmission
GB779933A (en) Two-speed coaster hub for velocipedes and the like
GB929261A (en) Improvements in or relating to automatic gear mechanisms
GB1023356A (en) Two-speed transmission hub
GB1142051A (en) Motor vehicle differential
US2248492A (en) Vehicle transmission gearing
US1780293A (en) Automatic transmission
GB772396A (en) Two speed coaster brake for velocipedes
GB903096A (en) Two-speed gear drive for bicycle hubs and the like
GB1036340A (en) Multispeed transmission hub
US2865477A (en) Automatic two-speed gearing and hub brake for velocipedes and the like
US2882755A (en) Two-speed gear and hub brake for velocipedes or the like
GB796977A (en) Two-speed coaster brake for bicycles and the like
GB1203671A (en) Gearboxes
GB691798A (en) Improvements relating to change speed gearing
US1764961A (en) Planet gearing
GB885942A (en) A self-shifting change speed gear
US2903913A (en) Semi-automatic two-speed gear drive for velocipedes or the like
GB917679A (en) New or improved power transmission mechanism