To provide a disk wheel capable of preventing the vibration of a tire to be transmitted to a vehicle body via a rim or an axle to form the vibration of air in a cabin, and the air vibration from reaching the ears of an occupant as the road noise.
The disk wheel 20 comprises a rim 24 for fitting and holding a tire 22, and a disk 23 mounted on an axle to hold the rim 24. An iron plate member 52 curved at the radius of curvature smaller than that in the circumferential direction of a drop part 50 is arranged on an outer circumferential surface of the drop part 50 of the rim 24 so that a surface curved in a recess of the iron plate member 52 faces the outer circumferential surface of the drop part 52, and spot-welded at least at one point, and the entire surface curved in the recess of the iron plate member 52 is brought into contact with the outer circumferential surface of the drop part 50.
COPYRIGHT: (C)2007,JPO&INPIT
Yusuke Murata
Tomoyuki Miki