F - Mech Eng,Light,Heat,Weapons – 16 – D
Patent
F - Mech Eng,Light,Heat,Weapons
16
D
F16D 41/12 (2006.01) B62M 1/00 (2010.01) F16D 41/30 (2006.01)
Patent
CA 2385286
An inner cylinder 5 supports and drives a hub shell 1. A sprocket hub 10 is rigidly mounted on one end of the cylinder, and may be integral with it. A bearing 2 at each end of the axle supports the cylinder and sprocket hub for rotation about the axle 1. Outer bearings 16 between the cylinder and hub shell rotationally support the hub shell. A circular ratchet 8 in the interior of the hub shell, and corresponding pawls 6 on the exterior of the cylinder, drive the hub shell when torque is applied to the sprocket hub, and allow the shell to freewheel otherwise. A more central position of the pawl drive in the hub shell compare to prior designs reduces twist of the shell. Wide separation of the bearings supporting the sprocket hub and cylinder provide a highly stable sprocket hub. These features maximize transmission efficiency and reliability.
Neugent John J.
P. Eng. Theriault Mario D.
LandOfFree
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