Gear hub lock ring chain guard

Details Gear hub lock ring chain guard Gear hub lock ring chain guard

1992-09-24

1993-12-14

Bui, Thuy M.

Endless belt power transmission systems or components

Guard or housing for belt or pulley

F16H 718

Patent

active

052697274

ABSTRACT:
In accordance with the present invention there is provided a a combination lock ring and chain guard for the outer most gear cog of a multi gear gear hub of the type retained on the drivewheel of a bicycle by a lock ring;
said combination lock ring and chain guard comprised of an annular member 2 having an internally threaded central opening 1 for mounting the guard on the drive side of a bicycle drivewheel hub to the outside of a multi gear freewheel mounted on the drivewheel hub, the perimeteral edge of the annular member provides a high gear overshift chain guard supported to the outside, parallel to, and above and adjacent the path of the teeth of the outer most gear cog of the multi gear bicycle gear hub.

REFERENCES:
patent: 4289490 (1981-09-01), Nagano
patent: 4905541 (1990-03-01), Alan
patent: 5116285 (1992-05-01), Wahl

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