IP Library Granted Patent US 12691653
Granted Patent B2
US 12691653 · App. 18/587,255 · Granted Jul 28, 2026

Method for producing a sole of a shoe, in particular of a sports shoe

Inventors: Mauro Bonin (Nuremberg, DE); Matthias Hartmann (Forchheim, DE); Reinhold Sussmann (Scheinfeld, DE)
Assignee: PUMA SE
B29D35/142A43B13/18B29C45/14467B29C70/84B29D35/0018B29D35/122B29D35/128
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Quick Facts
Patent No.
US 12691653
App. No.
18/587,255
Granted
Jul 28, 2026
Kind
B2
Abstract

A sole structure includes a forefoot region, a midfoot region, and a heel region along a longitudinal direction of the article of footwear. The sole structure includes a midsole, which has a plurality of cavities defined by outer edges, and each of the cavities of the plurality of cavities extends between a lateral side of the footwear and a medial side of the footwear. Each cavity of the plurality of cavities is defined by a first rounded end, a second rounded end opposite of the first rounded end, a front side edge, and a rear side edge. The front side edge and the rear side edge connect the first rounded end with the second rounded end and the plurality of cavities is configured to programmably collapse or deform the sole structure when a force is applied downward.

Claims (42)

1 . An article of footwear, comprising:

a sole structure defining a forefoot region, a midfoot region, and a heel region along a longitudinal direction of the article of footwear, the sole structure including a midsole,

wherein the midsole includes a plurality of cavities defined by outer edges, and each of the cavities of the plurality of cavities extends between a lateral side of the footwear and a medial side of the footwear,

wherein each cavity of the plurality of cavities is defined by a first rounded end, a second rounded end opposite and spaced apart from the first rounded end in the longitudinal direction, a front side edge, and a rear side edge opposite the front side edge, wherein the front side edge and the rear side edge connect opposite ends of the first rounded end with the second rounded end,

wherein the front side edge and the rear side edge taper inward from the first rounded end toward the second rounded end,

wherein each cavity of the plurality of cavities is disposed along a line that extends in the same direction as the longitudinal direction, and

wherein the plurality of cavities is configured to collapse or deform the sole structure when a force is applied downward.

2 . The article of footwear of claim 1 , wherein forefoot cavities of the plurality of cavities define a smaller cross section in the forefoot region relative to heel cavities in the heel region.

3 . The article of footwear of claim 1 , wherein the plurality of cavities includes a first cavity and a second cavity,

wherein the first cavity includes a first top end and a first bottom end opposite the first top end, the first top end and the first bottom end being symmetrical about a first major axis,

wherein the second cavity includes a second top end and a second bottom end opposite the second top end, the second top end and the second bottom end being symmetrical about a second major axis, and

wherein the first major axis and the second major axis are angularly offset from each other and from an axis that is perpendicular with respect to the longitudinal direction.

4 . The article of footwear of claim 3 , wherein a third cavity is disposed between the first cavity and the second cavity, and

wherein the third cavity includes a third major axis.

5 . The article of footwear of claim 4 , wherein the third major axis is angularly offset from the first major axis and is parallel with respect to the longitudinal direction.

6 . The article of footwear of claim 3 , wherein the front side edge and the rear side edge of the first cavity taper inward from the first rounded end toward the first major axis.

7 . The article of footwear of claim 3 , wherein the front side edge and the rear side edge taper inward from the first rounded end toward the first major axis of the first cavity.

8 . A sole structure, comprising:

a plurality of cavities disposed along a longitudinal direction of the sole structure,

wherein each cavity of the plurality of cavities includes a first rounded end, a second rounded end opposite and spaced apart from the first rounded end in the longitudinal direction, and side edges connecting opposite ends of the first rounded end and the second rounded end,

wherein each of the plurality of cavities includes a single major axis that extends between the first rounded end and the second rounded end,

wherein a front side edge and a rear side edge of each cavity of the plurality of cavities taper inward from the first rounded end toward the second rounded end, and

wherein a first major axis of a first cavity of the plurality of cavities is angularly offset from a second major axis of a second cavity of the plurality of cavities.

9 . The sole structure of claim 8 , wherein at least one cavity of the plurality of cavities is disposed along a line that extends in the same direction as the longitudinal direction, and

wherein the at least one cavity is a third cavity.

10 . The sole structure of claim 8 , wherein the major axis bisects each of the plurality of cavities separating the plurality of cavities into equal volumes.

11 . The sole structure of claim 8 , wherein the plurality of cavities extends between a lateral side and a medial side of the sole structure.

12 . The sole structure of claim 8 , wherein forefoot cavities of the plurality of cavities define a smaller cross section in a forefoot region relative to heel cavities in a heel region of the sole structure.

13 . An article of footwear, comprising:

a sole structure including a midsole, the midsole including a plurality of cavities, each of the plurality of cavities defined by a first rounded end, a second rounded end opposite and spaced apart from the first rounded end in a longitudinal direction, a first side edge, and a second side edge opposite the first side edge,

wherein the first side edge and the second side edge connect opposite ends of the first rounded end with the second rounded end,

wherein each cavity of the plurality of cavities includes a single major axis between the first rounded end and the second rounded end,

wherein the first side edge and the second side edge taper inward from the first rounded end toward the second rounded end,

wherein the plurality of cavities includes a first row of cavities and a second row of cavities different than the first row of cavities, the first row of cavities and the second row of cavities each extending in a transverse direction over an entire width of the midsole, and

wherein the plurality of cavities is configured to collapse or deform the midsole when a force is applied downward.

14 . The article of footwear of claim 13 , wherein the major axis bisects the cavity between the first rounded end and the second rounded end.

15 . The article of footwear of claim 14 , wherein the plurality of cavities includes a first cavity having a first major axis, a second cavity having a second major axis, and a third cavity between the first and second cavity, having a third major axis,

wherein the third major axis is angularly offset from the first major axis and the second major axis.

16 . The article of footwear of claim 15 , wherein the third major axis is parallel with respect to the longitudinal direction, and

wherein the first major axis and the second major axis are perpendicular with respect to the longitudinal direction.

17 . The article of footwear of claim 13 , wherein forefoot cavities of the plurality of cavities define a smaller cross section in a forefoot region relative to heel cavities in a heel region.

18 . The article of footwear of claim 14 , wherein the first side edge and the second side edge taper inward from the first rounded end toward the major axis.