Method for producing a shoe sole

a production method and sole technology, applied in the field of shoe sole production, can solve the problems of high production cost, inability to meet the requirements etc., and achieve the effect of reducing the production cost, and avoiding the production of the shoe sol

Pending Publication Date: 2021-03-25
PUMA SE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007]Thus, it is the object of the invention to provide a method by which a shoe sole can be produced in a cost efficient manner and which spring and damping behavior can be adjusted in a desired manner. Thus, the shoe sole should be producible economically and with easy adjustable spring and damping properties.

Problems solved by technology

The properties of the shoe which are so obtainable, especially with respect to the spring and damping behavior, are not fully satisfactory in any case.
Furthermore, the production process of the mentioned sole is sometimes elaborate and thus costly.

Method used

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  • Method for producing a shoe sole
  • Method for producing a shoe sole
  • Method for producing a shoe sole

Examples

Experimental program
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Effect test

Embodiment Construction

[0038]In FIG. 1 the start of the production process of a sole structure 20 of a shoe sole is shown schematically. An extruder 18 plasticizes plastic material and outputs the same via an extrusion head 17 so that a plastic hose 2 is produced which is closed around the whole circumference. When the same is long enough it is placed into a blow mold 3 which consists of two mold halves which are moved against another into the direction of the double arrow and then enclose the plastic hose 2 for blow molding in known manner.

[0039]As already mentioned alternatively an injection molding of a plastic blank can be taken in consideration which is then deformed in the blow mold 3.

[0040]By the blow molding process a sole hollow body 4 (see FIGS. 2 and 3) is produced which provides a reception space in its inner.

[0041]A first deformation tool 13 and a second deformation tool 15 are schematically indicated. Those tools 13, 15 are moved against another in the direction of the arrow when the mold ha...

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Abstract

A shoe includes a sole structure that defines a first supporting structure, a second supporting structure, and a third supporting structure, the first supporting structure being disposed within a forefoot region, the second supporting structure being disposed within a midfoot region, and the third supporting structure being disposed within a heel region. Each of the first supporting structure, the second supporting structure, and the third supporting structure define at least one curved surface, against which a plurality of plastic bodies are disposed. The plurality of plastic bodies comprise foamed plastic, define spheres or ellipsoids, are between 1 mm and 13 mm in the three spatial directions, and are arranged loosely within the sole structure without connection to one another. The plurality of plastic bodies are compressed against the first supporting structure, the second supporting structure, and the third supporting structure.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of U.S. patent application Ser. No. 16 / 095,239, filed on Oct. 19, 2018, which claims priority to International Application No. PCT / EP2016 / 002066, filed Dec. 8, 2016, the entire contents of which are incorporated by reference herein in their entirety.BACKGROUND OF THE INVENTION[0002]The invention relates to a method for producing a shoe sole, especially of such for a sports shoe.[0003]The production of shoe soles especially for sports shoes is a sufficiently known technology. Thereby not only an economical process for the production is aimed for but also to have the possibility to have a possibly good influence onto the spring and damping behavior of the shoe sole and thus of the shoe. Here, also the used material has a significant influence.SUMMARY OF THE INVENTION[0004]In U.S. 2009 / 0013558 A1 a shoe is described at which the shoe sole consists of different plastic materials which are connected with anot...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A43B13/04B29C49/04B29C49/06B29C49/48A43B13/14
CPCA43B13/04B29C49/04B29C49/06B29C49/4802B29L2031/504B29C49/48B29K2023/06B29K2995/0091A43B13/14B29K2023/12B29K2027/06B29K2033/12B29K2059/00B29K2069/00B29K2075/00B29K2077/00B29C49/4817B29C2049/4807B29C2049/023B29C2949/0715A43B13/187
Inventor HARTMANNGIRARD, ROMAIN
Owner PUMA SE
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