Patent ID: 8353391
Filing Date: 2013-01-15
Classification: F16D

Abstract:
1. A floating type brake disc comprising: an annular rotor; and a hub disposed on an inside of the rotor, the rotor and the hub being connected together by a connecting pin at each of a plurality of circumferential positions, wherein a U-shaped pin-receiving portion is formed at each of the plurality of circumferential positions on a periphery of the hub so as to receive therein the connecting pin in a manner to enclose the connecting pin from three directions of a radially inner direction, one of circumferentially one side and circumferentially the other side, and a radially outer direction of the brake disc, the pin-receiving portion having an opening on the other of the circumferentially one side and the circumferentially the other side, wherein a tongue-shaped pin-receiving portion is formed at each of the plurality of circumferential positions on an inner circumference of the rotor so as to be elongated radially inward to close the opening in the U-shaped pin-receiving portion, the tongue-shaped pin-receiving portion being adapted to pinch the connecting pin between the tongue-shaped pin-receiving portion and the U-shaped pin-receiving portion, and the tongue-shaped pin-receiving portion having a point contact with the connecting pin, and wherein no portion of an inner circumferential surface of the rotor is in direct contact with the connecting pin.