Bicycle rear-wheel hub assembly

Details Bicycle rear-wheel hub assembly Bicycle rear-wheel hub assembly

1991-11-21

1994-04-05

Britts,, Ramon

Endless belt power transmission systems or components

Positive drive pulley or guide roll

And additional coaxial surface for engaging same belt in...

474164, 474903, F16H 5512, F16H 5530

Patent

active

052999254

ABSTRACT:
A bicycle rear-wheel hub includes an inner casing disposed in the hub at one side, an outer casing disposed on the inner casing, an axle inserted through the hub and a set of flywheels disposed on the outer casing. The hub includes an inner thread and a wheel shoulder at one end, and a rubber ring set inside the wheel shoulder in front of the inner thread. The inner casing has an outer thread at one end for engaging with the inner thread of the hub. The inner casing also has a tool hole at the opposite end for inserting a tool. The outer casing has a number of elongated grooves around the outer wall surface for fastening the set of flywheels. The flywheels each has a number of inner projections formed in a center hole for engaging with the elongated grooves of the outer casing.

REFERENCES:
patent: 3478614 (1969-11-01), Shimano
patent: 4296850 (1981-10-01), Isobe
patent: 4299581 (1981-11-01), Korosue
patent: 4311473 (1982-01-01), Sugimoto
patent: 4580670 (1986-04-01), Nagano
patent: 4869710 (1989-09-01), Iwasaki

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