| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicular wheel having rotary auxiliary blades capable of realizing the low fuel consumption by substantially reducing the rolling resistance of a tire in a wheel to be used for a car or a vehicle traveling at a normal speed. SOLUTION: A plurality of rotary auxiliary blades 21-1 to 21-4 are provided on an outer face of a wheel 2 in a uniformly distributed manner in the tire circumferential direction. Each rotary auxiliary blade 21 comprises a rubber sheet 22 extending in the wheel radial direction, a fixed bar to support an edge on the inner side of the wheel radial direction of the rubber sheet 22 from a body side of the wheel, and a movable bar 24 connected to an edge on the outer side of the wheel radial direction. The movable bar 24 is connected to the fixed bar 23 via a coil-shaped spring 29, and guided in the wheel radial direction. As the movable bar is shifted from an upper end position to a lower end position when the vehicle travels, the rubber sheet 22 is drawn and extended by the gravity applied to the movable bar 24. The rotary auxiliary blades 21 receives air resistance in a vicinity of the lower end position than larger than that of the upper end position, and generates the rotary auxiliary force. COPYRIGHT: (C)2006,JPO&NCIPI
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