Patent ID: 7278521

Claim:
A disc rotor of a disc brake device for a vehicle, the disc rotor being substantially disc-shaped, comprising: a flange portion with which the disc rotor is mounted on a wheel of the vehicle; and a brake portion formed coaxially with a rotational axis of the disc rotor and configured to be seized by a caliper of the disc brake device; wherein the flange portion has a mounting portion configured to attach the disc rotor to the wheel; wherein the brake portion is configured to protrude in one direction of the rotational axis relative to the flange portion; and wherein the brake portion has brake surfaces formed at both side surfaces of the disc-shaped disc rotor and configured to be contacted by pads of the caliper, the brake surfaces respectively having sliding surfaces which the pads are configured to directly slidably contact, the brake portion being configured to be seized by the pads directly in contact with the sliding surfaces, the sliding surfaces being inclined in one direction with respect to the rotational axis of the disc rotor so that the sliding surfaces are visible from a direction perpendicular to the rotational axis of the disc rotor and being parallel to each other.