Brakes – Vehicle – Velocipede
Patent
1993-02-17
1995-06-06
Oberleitner, Robert J.
Brakes
Vehicle
Velocipede
74388R, G05G 700, B62L 302, F16H 5904
Patent
active
054214351
ABSTRACT:
A brake apparatus for use on a hub shaft (11) supporting a hub (2) of a bicycle has a brake ring (13), and a coupling device for coupling the brake ring and the hub to be rotatable together. The coupling device includes outer splines (13a) formed on the brake ring (13) and inner splines (2d) formed in the hub (2) to allow relative axial movement between the brake ring (13) and hub (2) while preventing relative rotation therebetween. The brake apparatus includes brake shoes (6) disposed inside the brake ring (13) to be movable into contact with the brake ring (13). A restrictor is provided for restricting axial movement of the brake shoes (6) relative to the brake ring (13). The restrictor includes stoppers (27a) projecting radially outwardly from peripheral positions of an annular shoe presser spring (27) fitted circumferentially of the brake shoes (6), and grooves (13b) formed in an inner peripheral wall of the brake ring ( 13). The brake apparatus further includes a brake controller (7) for varying a radial distance of the brake shoes (6) from an axis of the hub shaft (11).
REFERENCES:
patent: 1512362 (1924-10-01), Phelps
patent: 2517847 (1950-08-01), Crossland
patent: 2569718 (1951-10-01), Hooykaas
patent: 2892521 (1959-06-01), Spencer
patent: 4109762 (1978-08-01), Wood
patent: 5201236 (1993-04-01), Nagano
Oberleitner Robert J.
Schwartz Chris
Shimano Inc.
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