Brakes – Vehicle – Velocipede
Patent
1999-05-11
2000-11-21
Mar, Michael
Brakes
Vehicle
Velocipede
188218XL, B62L 500
Patent
active
061489646
ABSTRACT:
A front disk brake, which includes a brake disk fixedly mounted on a hub at the front fork of a bicycle, and a brake caliper mounted on lugs at the front fork of the bicycle by a mounting frame and pulled by a brake line to stop the brake disk, wherein the brake caliper includes a body mounted on the mounting frame, the body having a narrow slot, which receives the brake disk, two inside annular grooves at two opposite sides of the slot, and two sets of steel balls moved in the slot, two cam shafts mounted in the body, the cam shafts each having a head and ball grooves equiangularly spaced at the head, the ball grooves receiving the steel balls and each having a depth gradually deeper from one end toward the other end, and a pull bar driven by the brake line to turn the cam shafts, enabling the cam shafts to be respectively forced outwards by the steel balls toward two opposite side walls of the brake disk.
REFERENCES:
patent: 3989124 (1976-11-01), Fujii
patent: 5632362 (1997-05-01), Leitner
patent: 5950772 (1999-09-01), Buckley et al.
patent: 5960914 (1999-10-01), Isai
patent: 5979609 (1999-11-01), Tsai
Mar Michael
Pezzlo Benjamin A.
LandOfFree
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