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US 6,959,790 B2Granted
Antilock disc brake
OwnerTan Cheng Huanginventor
Life of this patent
Estimating the term…
Abstract
The present invention relates to a brake device for a bike, and more particularly to an antilock disc brake device, which is mounted to the front/back fork of a bike, and includes a slider, plural steel balls, a fluted disc and a shaft pad. The present invention is not only capable of preventing the brake from locking up, but also it prevent unstable ride caused by a sudden brake at high speed.
Claims10
An anti-lock disc brake device mounted on a fork of a bike and corresponds to disc brake;
- a positioning assembly screwed on the fork, and the positioning assembly defined with teeth;
- a slider, a base body of which reciprocating relative to the positioning assembly;
- a spring biased between the slider and the positioning assembly;
- a braking assembly comprising brake pad, shaft pad, plural steel balls and fluted disc, the braking assembly disposed in the slider, the brake pad corresponds to surface of the disc brake, a side surface of the shaft pad defined with plural slots, each of the plural slots formed with shallow end and deep end which used to cooperate with the steel balls respectively, a drive shaft provided at the same side of the shaft pad and rotatably protruding out of the slider, the fluted disc defined with teeth for meshing with the teeth of the positioning assembly, a side of the fluted disc formed with plural cavities for receiving the steel balls;
- a rock-arm assembly comprising a steel wire and a rock arm, the drive shaft of the braking assembly disposed at an end of the rock arm, the steel wire fixed to another end of the rock arm.
2 more elements
An anti-lock disc brake device comprising:
- a positioning assembly defined with teeth;
- a slider, a base body of which laterally defined with a through hole, at a side of the through hole formed with a first gap and a second gap;
- the second gap corresponds to the teeth of the positioning assembly, the first gap serving to receive a brake disc, at an outer periphery of the base body is provided with an arm;
- a spring biased between the base body of the slider and the positioning assembly;
- a braking assembly including a first braking unit and a second braking unit, the first braking unit disposed at a first side of the through hole of the slider, a brake pad of the first braking unit corresponds to a first side of the brake disc, the second braking unit disposed at a second side of the through hole of the slider, the second braking unit comprising a brake pad, a retainer, a dust washer, a shaft pad, plural steel balls, a fluted disc, a plural steel balls and a wearing gasket, the brake pad of the second braking unit corresponds to the second side of the brake disc, the shaft pad provided at a side surface thereof with plural teardrop shaped grooves, each of the teardrop shaped grooves has a wide deep end and a narrow shallow end, a drive shaft rotatably projecting out of the through hole of the slider, the plural steel balls received in the teardrop shaped grooves and located at one side of the fluted disc, the fluted disc further defined with plural cavities at another side thereof for receiving the steel balls, the wearing gasket corresponds to the steel balls in the cavities on another side of the fluted disc;
- a steel wire of a rock-arm assembly fixed to a another end of a rock arm after passing through the arm of the slider.
3 more elements
Dependencies are inferred from the claim text.