Back to results
US 6,648,421 B1Granted
Wheel structure
AssigneeMitsubishi Jidosha Kogyo Kabushiki Kaisha
InventorsYasuji Akiyoshi, Toshihiro Moriya, Hiroshi Yamauchi
Life of this patent
Estimating the term…
Abstract
A wheel structure for vehicles, capable of reducing a columnar resonance sound occurring in a wheel during a travel of a vehicle. A cross-sectional shape of a closed space defined by a wheel and a tire is varied in the circumferential direction so that a columnar resonance frequency in the closed space varies with a rotation of a wheel unit.
Claims2
A wheel structure comprising:
- a wheel;
- and
- a tire fitted on an outer circumference of the wheel;
- wherein a cross-sectional shape of a closed space defined by the wheel and tire being varied in a circumferential direction thereof so that a columnar resonance frequency in the closed space varies with rotation of the wheel structure;
- wherein the closed space is formed so that a ratio of a length of a radially shortest portion thereof to that of a radially longest portion thereof becomes substantially not larger than 97%;
- and
- wherein the shortest portion is symmetrically positioned in relation to the width of the wheel.
4 more elements
Dependencies are inferred from the claim text.