| 摘要 |
PROBLEM TO BE SOLVED: To provide an agricultural wheel capable of providing sufficient traction even if traveling on a muddy land. SOLUTION: The agricultural wheel 1 is designated in a rotating direction R, and includes a wheel body 6 and a plurality of lugs 12 having projecting ends being ground contact surfaces 15. The lugs include a pair of auxiliary blades 16 projecting to both sides in the width direction at a rotating direction side. The auxiliary blades include tread surfaces 18 directed to the rotating direction side and inclined in the radial direction so that the inside of the radial direction may be located at the rotating direction side. When a distance between mutual width direction outer ends in the auxiliary blades is Sa, a width direction dimension and a peripheral direction dimension of each of the ground contact surfaces are Sb and Sd, respectively, the thickness of each of the projecting ends is Sc, and the inclination of a crossing line Li between a virtual plane MG1 passing a width direction end of the wheel body 6 and orthogonal to the rotation center and the tread surface to a virtual plane MG3 passing a root Rb to the wheel body at the width direction end of the tread surface and the rotation center isθ(degree), expressions of 1.5Sb≤Sa≤2.0Sb, 0.2Sd≤Sc≤0.4Sd and 20≤θ≤50 are satisfied. COPYRIGHT: (C)2011,JPO&INPIT
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