PROBLEM TO BE SOLVED: To provide a ground-leveling rotor formation that has an easy assembly and reduces materials.SOLUTION: The ground-leveling rotor formation 100 includes a boss part 101 in which an attaching hole 105 of even number polygon is formed, a rim part 102, ground-leveling action parts 103 arranged at equal intervals in the circumferential direction on one surface 102a of the rim part 102, and support parts 104 that are arranged at equal intervals in the circumferential direction on the other surface 102a of the rim part 102 and arranged between the ground-leveling action parts 103. The cross-section of the attaching hole 105 has an N-gonal shape. When the number of the ground-leveling action parts 103 and the support parts 104 is H, the ground-leveling rotor formation is constituted to satisfy H=N(2n+1)/2 (N is even number n is 1, 2, 3, ...).COPYRIGHT: (C)2011,JPO&INPIT【課題】組み付けが容易で、材料も削減できる整地ロータ構成体を提供することにある。【解決手段】偶数多角形の取付け孔105を形成したボス部101、リム部102、リム部102の一方の面102aに周方向等間隔に設けられた整地作用部103、リム部102の他方の面102aに周方向等間隔に設けられて整地作用部103の間に設けられた支持部104を備えて、整地ロータ構成体100を構成する。取付け孔105の断面をN角形とし、整地作用部103及び支持部104の個数をHとしたとき、H=N(2n+1)/2(但し、Nは偶数で、n=1,2,3・・・とする)となるように構成する。【選択図】図11
