RUNNING SURFACE OF SOLE WITH ANTI-SKID PROPERTIES Russian patent published in 2019 - IPC A43C15/14 

FIELD: footwear production.

SUBSTANCE: invention relates to the running surface of the sole with anti-skid properties, which contains cuvettes, which are framed by curbs made along the outline of the toe-beam and waist part of the sole to the cross-section through the middle of the sole length and along the closed contour of the heel, wherein the surfaces of the walls of the cuvettes and the curbs facing the soil are the support surfaces of the sole, and the outer sides of the walls of the cuvettes, as well as the outer and inner lateral sides of the curbs have recesses, wherein between walls of adjacent cuvettes, as well as between cuvette walls and curbs there are depressions in form of interconnected grooves with depth of 4.0–8.0 mm and width of 3.0–7.0 mm, wherein width of support surfaces of cuvette walls is equal to 3.0–6.0 mm, wherein support surfaces of cuvette walls are made small-finned, and shape and dimensions of cuvettes, as well as their mutual arrangement eliminate presence of rectilinear grooves completely crossing running surface enclosed between curbs, wherein the length of straight sections of the grooves between the cuvettes is limited either by the cuvette wall blocking the groove, or by changing the direction of the wall of the cuvette, along which this rectilinear section of the groove is located, as a result, the length of the straight section of the groove does not exceed the length of the longest rectilinear section of the outer side of the wall of the cuvette, wherein in the widened part of the curbs there are cavities having depth of 4.0–8.0 mm and a width in their central part of 3.0–6.0 mm, at that, concave lateral sides of recesses have recesses, and recesses on side sides of cuvette walls and lateral sides of curbs have shape of regular triangular prisms, base plane of which is parallel to support surfaces of cuvette walls and curbs, wherein the size of the side of the triangular base of the prisms is equal to 2.0–4.0 mm, the height of prisms is 4.0–8.0 mm, and the distance between the centers of the adjacent bases of the prisms lies in the range from one to two dimensions of the side of the triangular base of the prisms, wherein in the curbs on the side of their support surface there are intermittent grooves, the length of which is limited by transverse webs, wherein the intermittent grooves bifurcate the widths into equal parts, wherein the discontinuous grooves and the cuvettes are filled with a foamed bottom material from which relief support surfaces in the form of fish flakes are formed.

EFFECT: improving anti-skid properties of the running surface of the sole at all phases of contact of the sole with the support surface of the ground.

7 cl, 1 tbl, 7 dwg