Anti-skid brake

Claim 2

In a vehicle having at least one wheel and a brake member for applying a brake torque to the wheel, the combination of, a. a brake rotor. b. resilient means for mounting the brake rotor on the wheel to allow relative rotational displacement between the rotor and the wheel, the magnitude of said displacement being proportional to the magnitude of braking torque twist applied to the rotor, c. first braking means for applying an initial braking force on the brake rotor member, and d. second braking means acting in response to the magnitude of movement of the brake rotor member relative to the wheel for modifying the amount of braking force applied by the brake member to the brake rotor.

Claim 3

A vehicle brake assembly comprising in combination, a. a rotatable hub adapted to carry a wheel, b. a brake disc carried by the hub, c. resilient means for securing the disc to the hub to allow relative rotational displacement therebetween in response to braking torque, d. linkage means including a rotatable bearing for translating relative movement between the disc and hub in response to braking torque into linear movement at a fixed point relative to a vehicle, e. first hydraulic braking means for applying an initial braking force on the disc, and f. second hydraulic braking means responsive to movement of said linkage means with respect to the vehicle in response to braking torque for applying an additional braking force to the disc.

Claim 4

A vehicle brake assembly comprising in combination, a. a rotatable hub adapted to carry a wheel, b. a brake disc carried by the hub, c. resilient means for securing the disc to the hub to allow relative rotational displacement therebetween in response to braking torque, d. linkage means including a rotatable bearing for translating relative movement between the disc and hub in response to braking torque into linear movement at a fixed point relative to a vehicle, e. first hydraulic braking means for applying an initial braking force on the disc, and f. second hydraulic braking means responsive to movement of said linkage means with respect to the vehicle in response to braking torque for applying an additional braking force to the disc.

Claim 5

Apparatus as defined in claim 2, in which said first and second hydraulic braking means include a common caliper having opposed friction pads engageable with a periphery of the disc, and a common hydraulic cylinder assembly for applying braking forces to the friction pads, said first hydraulic means including a first conduit leading to the cylinder assembly from a source of hydraulic pressure controlled by a vehicle operator, said first conduit having a calibrated chamber having a shiftable plug for permitting a calibrated amount of hydraulic fluid to be expelled through the conduit whereupon the flow is interrupted by the plug encountering one end of the calibrated chamber, and said second hydraulic brake means including a piston and cylinder connected to the cylinder assembly by a second conduit, said piston being connected to the linkage means for fluid-expelling movement upon movement of the linkage means in response to braking torque.

Claim 6

Apparatus as defined in claim 3 in which said piston of said second hydraulic brake means is connected to the linkage means by a lost-motion linkage including a compression spring for urging a piston into a rest position removed from the linkage means.

Claim 7

Apparatus as defined in claim 3 in which said plug includes a one-way check valve for allowing fluid to escape from the hydraulic cylinder assembly, and bleed means for allowing a controlled seepage of hydraulic fluid into the hydraulic cylinder assembly, said assembly further including a compression spring for urging the friction pads into a light wiping engagement with the disc.

Claim 8

Apparatus as defined in claim 2 in which said linkage means includes an anti-friction bearing having inner and outer races, said outer race being keyed to the hub for axial movement, cam and follower means for translating relative rotational movement of the disc on the hub into axial movement of the bearing outer race, and a finger carried by the inner race and retained in a stationary position relative to the vehicle for translating axial movement of the bearing to the second hydraulic cylinder means.