1. An arrangement structure of a tillage tine for a tilling apparatus comprising: a revolution shaft (10); and a plurality of flanges (F1-F9) disposed on and spaced away one another in an axial direction (X2) of the revolution shaft (10), each of the flanges (F1-F9) including a plurality of attachment portions (30) to mount a plurality of tillage tines (N1-N32), the arrangement structure characterized in that: the attachment portions (30) mounting the tillage tines (N1-N32) are plotted on a development view obtained by revolving the revolution shaft (10) about the axis direction (X2) by 360 degrees, a first interval (M1) is defined as a distance in a circumferential direction of the flanges (F1-F9) between a first pair of the attachment portions (30) with the tillage tines facing each other and mounted on the flanges (F1-F9) adjacent in the axial direction (X2) on the development view, a second interval (M2) is defined as a distance in a circumferential direction of the flanges (F1-F9) between a second pair of the attachment portions (30) with the tillage tines facing each other and mounted on the flanges (F1-F9) adjacent in the axial direction (X2) on the development view, the first pair and the second pair of the attachment portions (30) are adjacent each other in the axial direction (X2), and the first interval (M1) being different from the second interval (M2), and the flange (F2-F8) includes the attachment portions (30) to mount a first set of the tillage tines (N1-N32) facing in one direction along the axial direction (X2), and a second set of the tillage tines (N1-N32) facing in the other direction along the axial direction (X2), so that the first set and the second set of the tillage tines on each of the flange (F2-F8) are arranged alternately in the circumferential direction and the first set and the second set of the tillage tines throughout the flange (F2-F8) are arranged to shift angular positions of the attachment portions (30) for a point-asymmetry arrangement about an axis of the revolution shaft (10).

2. The arrangement structure as claimed in claim 1, characterized in that: the first pair of the attachment portions (30) includes a first attachment portion (30) mounting a first tillage tine to a first flange and a second attachment portion (30) mounting a second tillage tine to a second flange adjacent to the first flange along the axial direction (X2), the first tillage tine and the second tillage tine facing each other, and the second pair of the attachment portions (30) includes the third attachment portion (30) mounting a third tillage tine to the second flange and a fourth attachment portion (30) mounting a fourth tillage tine to a third flange adjacent to the second flange along the axial direction (X2), the third tillage tine and the fourth tillage tine facing each other.

3. The arrangement structure as claimed in claim 1 or 2, characterized in that: a first line is defined connecting the first pair of the attachment portion (30) with a first inclined angle (Nθ1) with respect to the axial direction (X2), and a second line is defined connecting the second pair of the attachment portion (30) with a second inclined angle (Nθ2) with respect to the axial direction (X2) on the development view, the first inclined angle (Nθ1) being different from the second inclined angle (Nθ2).

4. The arrangement structure as claimed in 1, characterized in that: the first pair of the attachment portions (30) includes a first attachment portion (30) mounting a first tillage tine to a first flange and a second attachment portion (30) mounting a second tillage tine to a second flange adjacent to the first flange along the axial direction (X2), the first tillage tine and the second tillage tine facing each other, the second pair of the attachment portions (30) includes the third attachment portion (30) mounting a third tillage tine to the second flange and a fourth attachment portion (30) mounting a fourth tillage tine to a third flange adjacent to the second flange along the axial direction (X2), the third tillage tine and the fourth tillage tine facing each other, and a first line is defined connecting the first pair of the attachment portion (30) with a first inclined angle (Nθ1) with respect to the axial direction (X2), and a second line is defined connecting the third attachment portion (30) and the fourth attachment portion (30) with a second inclined angle (Nθ2) with respect to the axial direction (X2) on the development view, the first inclined angle (Nθ1) being different from the second inclined angle (Nθ2).

5. The arrangement structure as claimed in claim 2 or 4, characterized in that: the first attachment portion (30) is closest to the second attachment portion (30) along the circumferential direction of the flanges (F1-F9), and the third attachment portion (30) is closest to the fourth attachment portion (30) along the circumferential direction of the flanges (F1-F9).

6. The arrangement structure as claimed in any one of claims 1-5, characterized in that: the attachment portions (30) are shared for mounting a plurality of different type of tillage tines (N1-N32) with the tillage tines (L1-L48), and the attachment portions (30) includes a first insertion hole (31) and a second insertion hole (32) provided and spaced from each other on the same circle of the flanges (F1-F9) about an axis of the revolution shaft (10).

7. The arrangement structure as claimed in any one of claims 1-6, characterized in that: the attachment portions (30) of the flanges (F1-F9) are shifted in angular positions along the axial direction (X2).

WE CLAIM:
1. An arrangement structure of a tillage tine for a tilling apparatus comprising:
a revolution shaft (10); and
a plurality of flanges (F1-F9) disposed on and spaced away one another in an axial direction (X2) of the revolution shaft (10), each of the flanges (F1-F9) including a plurality of attachment portions (30) to mount a plurality of tillage tines (N1-N32),
the arrangement structure characterized in that:
the attachment portions (30) mounting the tillage tines (N1-N32) are plotted on a development view obtained by revolving the revolution shaft (10) about the axis direction (X2) by 360 degrees,
a first interval (M1) is defined as a distance in a circumferential direction of the flanges (F1-F9) between a first pair of the attachment portions (30) with the tillage tines facing each other and mounted on the flanges (F1-F9) adjacent in the axial direction (X2) on the development view,
a second interval (M2) is defined as a distance in a circumferential direction of the flanges (F1-F9) between a second pair of the attachment portions (30) with the tillage tines facing each other and mounted on the flanges (F1-F9) adjacent in the axial direction (X2) on the development view,
the first pair and the second pair of the attachment portions (30) are adjacent each other in the axial direction (X2), and the first interval (M1) being different from the second interval (M2), and
the flange (F2-F8) includes the attachment portions (30) to mount a first set of the tillage tines (N1-N32) facing in one direction along the axial direction (X2), and a second set of the tillage tines (N1-N32) facing in the other direction along the axial direction (X2), so that the first set and the second set of the tillage tines on each of the flange (F2-F8) are arranged alternately in the circumferential direction and the first set and the second set of the tillage tines throughout the flange (F2-F8) are arranged to shift angular positions of the attachment portions (30) for a point-asymmetry arrangement about an axis of the revolution

shaft (10).
2. The arrangement structure as claimed in claim 1, characterized in that:
the first pair of the attachment portions (30) includes a first attachment portion (30) mounting a first tillage tine to a first flange and a second attachment portion (30) mounting a second tillage tine to a second flange adjacent to the first flange along the axial direction (X2), the first tillage tine and the second tillage tine facing each other, and
the second pair of the attachment portions (30) includes the third attachment portion (30) mounting a third tillage tine to the second flange and a fourth attachment portion (30) mounting a fourth tillage tine to a third flange adjacent to the second flange along the axial direction (X2), the third tillage tine and the fourth tillage tine facing each other.
3. The arrangement structure as claimed in claim 1 or 2, characterized in that:
a first line is defined connecting the first pair of the attachment portion (30) with a first inclined angle (Nθ1) with respect to the axial direction (X2), and a second line is defined connecting the second pair of the attachment portion (30) with a second inclined angle (Nθ2) with respect to the axial direction (X2) on the development view, the first inclined angle (Nθ1) being different from the second inclined angle (Nθ2).
4. The arrangement structure as claimed in 1, characterized in that:
the first pair of the attachment portions (30) includes a first attachment portion (30) mounting a first tillage tine to a first flange and a second attachment portion (30) mounting a second tillage tine to a second flange adjacent to the first flange along the axial direction (X2), the first tillage tine and the second tillage tine facing each other,
the second pair of the attachment portions (30) includes the third attachment portion (30) mounting a third tillage tine to the second flange and a fourth attachment portion (30) mounting a fourth tillage tine to a third flange adjacent to the second flange along the axial direction (X2), the third tillage tine and the fourth tillage tine facing each other, and

a first line is defined connecting the first pair of the attachment portion (30) with a first inclined angle (Nθ1) with respect to the axial direction (X2), and a second line is defined connecting the third attachment portion (30) and the fourth attachment portion (30) with a second inclined angle (Nθ2) with respect to the axial direction (X2) on the development view, the first inclined angle (Nθ1) being different from the second inclined angle (Nθ2).
5. The arrangement structure as claimed in claim 2 or 4, characterized in that:
the first attachment portion (30) is closest to the second attachment portion (30)
along the circumferential direction of the flanges (F1-F9), and the third attachment portion (30) is closest to the fourth attachment portion (30) along the circumferential direction of the flanges (F1-F9).
6. The arrangement structure as claimed in any one of claims 1-5, characterized in
that:
the attachment portions (30) are shared for mounting a plurality of different type of tillage tines (N1-N32) with the tillage tines (L1-L48), and
the attachment portions (30) includes a first insertion hole (31) and a second insertion hole (32) provided and spaced from each other on the same circle of the flanges (F1-F9) about an axis of the revolution shaft (10).
7. The arrangement structure as claimed in any one of claims 1-6, characterized in
that:
the attachment portions (30) of the flanges (F1-F9) are shifted in angular positions along the axial direction (X2).