| 摘要 |
PURPOSE: A moisture inflow preventive apparatus of a brake disk for a vehicle is provided to restrict moisture from being infiltrated into the disk, and to prevent oxidation by cooling with radiating heat from the disk in braking and by covering the disk in stopping the vehicle for a long time. CONSTITUTION: Rotational force is transmitted from an engine to a knuckle, and a tire is rotated by a hub(2). A disk(1) is installed in the hub, and a caliper(4) is operated with hydraulic pressure in braking. Rotational force is shut off by the caliper, and the disk is combined with the hub. The hub is combine with a back plate(3), and a cover(5) is screened by the back plate. The disk is shielded by the cover, and the cover is overlapped with a fixing part combined with the hub. Blades(6,6') are opened and closed by an elastic member and an operating member made of shape memory alloy. Inflow of moisture is restricted, and oxidation is prevented with cooling the disk by radiating heat in braking and covering the disk in stopping.
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