| 摘要 |
PROBLEM TO BE SOLVED: To provide a half insole in which single-sided corrugated cardboard paper is used, the tip of a sole form is cut, and the builtup of an outer edge part and an arch part is possible. SOLUTION: The single-sided corrugated cardboard paper is used; the insides of a pair of right and left sole forms 1, in which the tip is cut along the root part of each of toes, is connected by a polygonal line 5; a chevron, which has the same shape as the sole shape on the under surface and the root lower part of a small finger on the top surface as the starting point, is formed in the maximum swelling part of both the outside edge peripheries; and outer edge portions 2, in which a levee raising piece 3, the half of which is hollowed out, is formed on the sole form side from the center, are connected by polygonal lines 6 and 7, respectively. An interposing part 4, which exists between the right and left sole forms 1 connected, is divided in the center; polygonal lines 10 and 11 are formed in the vertical surface, and it is connected with both the sole forms 1 by a polygonal line 9 near an intermediate part. The outer edge portions 2 are turned up on the right and left sole forms 1; the levee raising piece 3 is also turned up by the polygonal line 7, and then the half of the outer edge portions 2 is also turned down upwards by a polygonal line 8. The interposal part 4 is turned up on the right and left sole forms 1 and then the vertical surface is also turned down in the order of the lower part and the upper part. Finally the outer edge portions 2 and the interposing part 4 are wrapped with the right and left sole forms 1. COPYRIGHT: (C)2011,JPO&INPIT
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