| 摘要 |
PROBLEM TO BE SOLVED: To improve a step-out strength and to satisfactorily secure the bendability of a wave part by applying many sheets of stainless steel foils of a specific thickness to a bottom part so as to generate slippage between respective layers. SOLUTION: An upper 1 consists of a vamp cloth 1A and an inner sole 1B, and a ground sole 2 consisting of rubber, synthetic resin, etc., is fixed to the upper 1. Many sheets of stainless steel foils 3, which are not thicker than 100μm and cut so as to match with the shape of the sole of a rubber-soled canvas boot, the provided at the sole part of the rubber-soled canvas boot in the state of generating slippage between the respective layers. Namely a shallow recessed part is previously formed at the ground sole 2 equivalent to the lower part of the inner sole 1B to house the foils 3 therein in a laminated state. Then at a part, only the part of a heel, e.g. of the laminated foils, gaps between the respective layers are adhered to fix and the other part is made free to be housed. Thereby slippage between the respective layers is generated with respect to movement such as bending to show proper bendability.
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