DESIGN OF FLEXIBLE BOOT SOLE Russian patent published in 2020 - IPC A43B13/18 

FIELD: footwear.

SUBSTANCE: invention relates to the flexible shoe sole design, which has at least one soft-elastic middle sole partially contacting with the ground during walking, which has transverse to its longitudinal direction directed towards the ground, flute-shaped elements with a flat bottom open at the side, wherein the middle sole has a flap overlapping flute-like elements, which narrows the grooves section in flute-shaped elements and determines the flute elements side openings height, and the outwardly directed end faces of the chute-like elements are equipped with horizontal setting folds-recesses and wherein gutter-like elements under action of forces acting vertically and/or in longitudinal direction, which occur during walking, are deformed vertically and/or in longitudinal direction until closing their side holes in the area of bead, wherein said folding recesses have vertical width corresponding to height of lateral holes of flute-like elements and, accordingly, are located on one straight line with lateral holes of flute-like elements.

EFFECT: technical result consists in providing more severe deformation of the sole.

4 cl, 2 dwg