| 摘要 |
PURPOSE:To improve an earth-moving property by providing an earth-moving fin, which falls to the rear of a rotating direction when touching the ground and elastically stands up when parting from the ground, between projections in the captioned traveling wheel in which the projections for generating a tractive force are projected for agricultural wheels etc. CONSTITUTION:Projections 2 for generating a tractive force are projected on the outer periphery of a traveling wheel 1 and fins 3 for earth-moving are projected between the projections 2 respectively. The fins 3 are made of rubber and formed to fall to the rear of a rotating direction when touching the ground and to stand up by its elastic force when parting from the ground. The weak soil 4 packed between the projections 2 is made to be positioned to the outer side of the fins 3 fallen by this constitution, and the soil 4 is sprung out from between the projections 2 to be excluded by the elastic restoring of the fins 3. The earth-moving property can be improved without lowering a tractive force by the constitution. |
