Base

摘要

A base includes a main plate-shaped portion including a first plate-shaped portion and a pair of second plate-shaped portions, a first folding portion provided on a first virtual line, a second folding portion provided on a second virtual line, two first bottom surface portions that are each provided, in the main plate-shaped portion, between a central position of the first virtual line and each of two intersection points, two second bottom surface portions that are each provided, in the main plate-shaped portion, between a central position of the second virtual line and each of two intersection points, a first side surface portion provided between the two first bottom surface portions, on the first virtual line in the main plate-shaped portion, and a second side surface portion provided between the two second bottom surface portions, on the second virtual line in the main plate-shaped portion.

主权项

1. A base comprising:
a main plate-shaped portion that includes a first plate-shaped portion and a pair of second plate-shaped portions, the main plate-shaped portion having an octagonal shape and including a first side, a second side, a third side, a fourth side, and four inclined portions, the first side and the second side facing each other, the third side and the fourth side facing each other in a direction orthogonal to a direction in which the first side and the second side face each other, the first plate-shaped portion being a section, of the main plate-shaped portion, that is located between a first virtual line and a second virtual line, the first virtual line being a virtual straight line that extends between the first side and the second side, the second virtual line being a virtual straight line that extends between the first side and the second side and being different from the first virtual line, one of the pair of second plate-shaped portions being a section, of the main plate-shaped portion, that is connected to the first plate-shaped portion at the first virtual line, the other of the pair of second plate-shaped portions being a section, of the main plate-shaped portion, that is connected to the first plate-shaped portion at the second virtual line, the pair of second plate-shaped portions including the four inclined portions, and the four inclined portions connecting the first side and the third side, connecting the first side and the fourth side, connecting the second side and the third side, and connecting the second side and the fourth side; a first folding portion that is provided on the first virtual line, the first folding portion being a portion at which the main plate-shaped portion that is configured to be foldable; a second folding portion that is provided on the second virtual line, the second folding portion being a portion at which the main plate-shaped portion that is configured to be foldable; two first bottom surface portions that are each provided, in the main plate-shaped portion, between a central position of the first virtual line and each of two intersection points at which the first virtual line intersects the first side and the second side, each of the two first bottom surface portions including a pair of first bottom surface cuts and a second bottom surface cut, the pair of first bottom surface cuts being two cuts that extend in a direction from the first folding portion toward the second folding portion, the second bottom surface cut being a cut that extends between the pair of first bottom surface cuts, the second bottom surface cut being parallel to the first virtual line, and a shape of a portion that is surrounded by the pair of first bottom surface cuts, the second bottom surface cut, and the first virtual line being trapezoidal; two second bottom surface portions that are each provided, in the main plate-shaped portion, between a central position of the second virtual line and each of two intersection points at which the second virtual line intersects the first side and the second side, each of the two second bottom surface portions including a pair of third bottom surface cuts and a fourth bottom surface cut, the pair of third bottom surface cuts being two cuts that extend in a direction from the second folding portion toward the first folding portion, the fourth bottom surface cut being a cut that extends between the pair of third bottom surface cuts, the fourth bottom surface cut being parallel to the second virtual line, and a shape of a portion that is surrounded by the pair of third bottom surface cuts, the fourth bottom surface cut, and the second virtual line being trapezoidal; a first side surface portion that is provided between the two first bottom surface portions, on the first virtual line in the main plate-shaped portion, the first side surface portion including a pair of first side surface cuts and a second side surface cut, the pair of first side surface cuts being two cuts that extend from the first folding portion to a side that is opposite to the second folding portion, and the second side surface cut being a cut that extends between the pair of first side surface cuts; and a second side surface portion that is provided between the two second bottom surface portions, on the second virtual line in the main plate-shaped portion, the second side surface portion including a pair of third side surface cuts and a fourth side surface cut, the pair of third side surface cuts being two cuts that extend from the second folding portion to a side that is opposite to the first folding portion, and the fourth side surface cut being a cut that extends between the pair of third side surface cuts.