Okamoto Corporation

Toshio Ando

Takao Fukui

Hideo Hirano

Ichiro Shinga

Makoto Ohata

Takahiko Fukumoto

Shu Morioka

Hiroshi Maeoka

Kenji Sho

Miyuki Mori

A vapor-permeable waterproof sock includes a cylindrical main body including a cloth having vapor permeability and that is waterproof. The vapor-permeable waterproof sock covers a range from a foot tip portion to a crus portion. The cylindrical main body includes a plurality of cloth areas, each of which expands and contacts more easily in one direction as compared with other directions. The plurality of cloth areas are joined together, and include a crus cloth area expanding and contracting more easily in a circumferential direction of the crus portion as compared with in a longitudinal direction of the crus portion, the crus cloth area covering the crus portion; and a planta portion cloth area expanding and contacting more easily in a longitudinal direction of the planta portion as compared with a width direction of the planta portion.

Vapor-permeable waterproof sock

A sock may include a first low-elasticity area disposed on a dorsal portion of the foot, the first low-elasticity area being band-shaped and having a lower elasticity than other areas of the sock. The first low-elasticity area may include a curved ankle portion and an end portion, the end portion being disposed below the curved ankle portion and extending to the base of the toes. The end portion may be positioned within a range from the base of the third toe to the base of the small toe. A center line in the course direction with respect to the width of the first low-elasticity area may gradually shift toward the side of the small toe in the course direction. Preferably, the first low-elasticity area applies a force that raises the side of the fifth toe toward the ankle curve portion thereby providing a resistive force against the ankle twisting inwards.

Sock

To provide a sock with a performance that matches its purpose of use and seasonal requirements. To change the thickness and strength of different parts of the sock according to the load distribution on the sole and the impact that the different parts of the sock are subjected to when walking and running. Knitting structures of different thicknesses and airspace ratios, e.g., flat stitches P, short-terry stitches SP, long-terry stitches LP, mesh stitches M, short-terry stitches based on mesh stitches M-SP, long-terry stitches based on mesh stitches M-LP, short-terry stitches based on reinforced mesh stitches M-R-SP, long-terry stitches based on reinforced mesh stitches M-R-LP, short-terry stitches with reinforcement yarn R-SP and long-terry stitches with reinforcement yarn R-LP are distributed in different parts of the sock.

Socks of multi-stage pile structure

Growing community of inventors

Nara, Japan

Toshio Ando