B29D35/148

Mould and method for producing footwear
11707901 · 2023-07-25 · ·

The present invention relates to a mould (10) for producing footwear (1) by means of direct injection onto the upper (2) of a sole (3), comprising a tread (5) and a midsole (4), wherein the midsole (4) is composed of a first layer (6) and a second layer (7). The mould (10) comprises a base (12), a pair of first half-rings (14), a pair of second half-rings (16), a first cover (18), a second cover (20) and a mould last (22). In accordance with the invention the mould (10) comprises gripping means (24) designed to fix selectively the first half-rings (14) to the base (12) or to the second half-rings (16). The present invention also relates to a method for producing footwear (1) using said mould (10).

Soles for sports shoes

Improved soles and insoles for shoes, in particular sports shoes, are described. In an aspect, a sole for a shoe, in particular a sports shoe, with at least a first and a second surface region is provided. The first surface region comprises expanded thermoplastic polyurethane (“TPU”). The second surface region is free from expanded TPU.

Foam article with enhanced properties

A foam article, such as a cushioning element for an article of footwear, apparel or sporting equipment is provided that comprises a foam component, such as a midsole, having a number of beneficial physical characteristics. The cushioning element is a low-density foamed component with a surface skin that encases the remaining foam volume. The cushioning element has a number of foam volumes, arranged to achieve a more consistent foam component. Additionally, the cushioning element includes a series of concentric ridges extending radially outwardly from injection gate vestige locations, and a number of striation bands near the perimeter of the cushioning element. The location of the gate vestiges can be beneficially arranged to produce intersecting flow boundaries that are located away from key strain areas of the cushioning element. The cushioning element is more environmentally-friendly, requiring less energy to produce while still providing acceptable energy return and low density.

Method of manufacturing a bladder element with an etched feature and article having a bladder element with an etched feature
11547178 · 2023-01-10 · ·

A method of manufacturing an article comprises etching an etched feature on a surface of a first polymeric sheet, and forming a fluid-filled bladder element from the first polymeric sheet, with the fluid-filled bladder element having a sealable internal cavity that retains fluid. The method includes assembling the bladder element in the article so that a first portion of the bladder element having the etched feature is exposed to view, and a second portion of the bladder element is blocked from view by the article. An article includes the bladder element with the etched feature.

Method for the manufacture of a plastic component, plastic component, midsole and shoe

The present invention relates to an enhanced method for the manufacture of a plastic component (135), in particular a cushioning element for sports apparel, the method comprising: opening a mold (100) by a predetermined amount into a loading position, wherein the mold comprises at least two mold parts (110, 112) and wherein the amount by which the mold is opened influences an available loading volume of the mold, loading a material comprising expanded particles (130) into the loading volume, closing the mold into a closed position, wherein during closing of the mold the mold parts are moved together over different distances (140) in different areas of the mold, compressing the expanded particles by closing the mold and fusing at least the surfaces of the expanded particles to mold the plastic component.

Method for the Manufacture of a Plastic Component, Plastic Component, Midsole and Shoe

The present invention relates to an enhanced method for the manufacture of a plastic component (135), in particular a cushioning element for sports apparel, the method comprising: opening a mold (100) by a predetermined amount into a loading position, wherein the mold comprises at least two mold parts (110, 112) and wherein the amount by which the mold is opened influences an available loading volume of the mold, loading a material comprising expanded particles (130) into the loading volume, closing the mold into a closed position, wherein during closing of the mold the mold parts are moved together over different distances (140) in different areas of the mold, compressing the expanded particles by closing the mold and fusing at least the surfaces of the expanded particles to mold the plastic component.

Article with overlay secured to bladder element over image and method of manufacturing the article
11490686 · 2022-11-08 · ·

A method of manufacturing an article includes forming a fluid-filled bladder element from polymeric material. The method further includes securing an overlay to the polymeric material. At least one portion of the overlay is substantially transparent, and an image on one of the fluid-filled bladder element and the overlay is aligned with and exposed to view through the at least one portion of the overlay that is substantially transparent. The fluid-filled bladder element is assembled in the article so that a first portion of the fluid-filled bladder element and the image are exposed to view, and a second portion of the fluid-filled bladder element is blocked from view by the article. An article includes the fluid-filled bladder element with the image, and with the overlay secured to the fluid-filled bladder element.

MOLD FOR MOLDING AN ARTICLE IN TWO MATERIALS
20230035328 · 2023-02-02 ·

Mold including a first shell having a cavity, a second shell having a projection, and an intermediate shell having a projection suitable for being coupled in the cavity of the first shell and a cavity suitable for being coupled with the projection of the second shell. The second shell includes a first injection channel extending from an inlet hole in a side wall of the second shell to an outlet hole in the projection of the second shell. The intermediate shell has a second injection channel extending from an inlet hole in a side wall of the intermediate shell to an outlet hole in the projection of the intermediate shell.

APPARATUS, METHOD AND CAPACITOR PLATE FOR PRODUCING A PARTICLE FOAM PART

The invention relates to an apparatus and a method for the manufacture of a shoe sole or part of a shoe sole from foam particles. Disclosed is an apparatus for the manufacture of a shoe sole or part of a shoe sole from foam particles, wherein the apparatus comprises: a.) a molding tool which is formed from at least two molding halves and which defines a molding cavity, and b.) at least two capacitor plates which are arranged adjacent to the molding cavity, wherein c.) at least one of the capacitor plates is connected to a radiation source, and wherein d.) at least one of the capacitor plates comprises several segments that have an adaptable distance to the molding cavity. Also disclosed is method for using such an apparatus in the manufacture of a shoe sole or part of a shoe sole from foam particles.

Fluid-filled chamber with a tensile element
11596202 · 2023-03-07 · ·

A fluid-filled chamber, which may be incorporated into articles of footwear and other products, may include an outer barrier and a tensile element. The outer barrier may have a first portion, an opposite second portion, and an interior surface defining an interior void. The tensile element may be secured to the first portion of the outer barrier in a plurality of first bond areas and may be secured to the second portion of the outer barrier in a plurality of second bond areas. Each of the bond areas may be connected to portions of the tensile element spaced from the interior surface.