Multiple crown free wheel systems for bicycles

Details Multiple crown free wheel systems for bicycles Multiple crown free wheel systems for bicycles

1974-07-19

1978-10-24

Scott, Samuel

Machine element or mechanism

Gearing

Toothed gear and recirculated unconnected elements

74243R, F16H 924, F16H 1108, F16H 5530

Patent

active

041214749

ABSTRACT:
A multiple crown free wheel system for bicycles comprises a core having a cylindrical external surface of generally constant diameter in which there are a series of canals. Each crown is provided with a series of ribs in its inner periphery, complementary to the canals of the core and in the same number, so that the crowns may be assembled and keyed on the core by sliding them axially onto the core, one after the other. A flange standing up from the surface of the core coincident with the annular salient of its rear mouth serves as a penetration block for the various crowns. Each crown increases uniformly in cross-sectional thickness from a zone beneath the base of the teeth to a maximum thickness.

REFERENCES:
patent: 3492883 (1970-02-01), Maeda
patent: 3648519 (1972-03-01), Nakata et al.
patent: 3661021 (1972-05-01), Ohshita
"The Handbook of Cycl-ology", Wheelgoods Corporation, Minneapolis, Minn., 55408, pp. 32 & 55, year 1969.

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