Sole Structure

a technology of sole structure and recycled materials, applied in the field of sole structure, can solve the problems of defective products increasing, the proportion limit of recycled materials in the fresh rubber material, and irregular patterns and/or colors, etc., and achieve the effect of improving the sole structure, reducing the weight of the product, and improving the appearan

Inactive Publication Date: 2013-01-03
WU HAN CHING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006]The primary object of the present invention is to provide an improved sole structure that can be manufactured with lower weight in a convenient way, and can afford an aesthetical appearance, adequate cushioning capacity, and more comfort in walking.

Problems solved by technology

However, to prevent the physical properties of the sole product from be significantly effected, there is a proportion limit of adding the recycled materials into the fresh rubber material.
If the proportion of the recycled materials is exceeded the limit, defective products may increase.
Also, the recycled materials being added to the fresh rubber material may result in irregular patterns and / or colors.
Furthermore, to manufacture a strip or welt made of recycled material to have aesthetical patterns is not easy.

Method used

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Embodiment Construction

[0015]To allow the features and applicability of the present invention to be easily understood, an embodiment with reference to the accompanying drawings will be detailed in the following paragraphs.

[0016]As shown in FIGS. 1-4, an improved sole structure of the present invention comprises a main body 10 or outsole, an intermediate layer 12, and a decorative strip 14 for enveloping a periphery of the main body 10, in which the aforementioned components may be preformed or pre-molded before a bonding process begins. The main body 10 is principally made of fresh rubber material having good physical properties, with suitable and necessary additives or fillers for ease of molding. The main body 10 has a bottom surface formed with a pattern of ribs for providing anti-slip function and a top surface defining a recess 11, the depth of which varies along the main body, in which each portion, such as heel portion or sole portion, may have a specific depth.

[0017]An intermediate layer 12, being...

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Abstract

An improved sole structure comprises a main body, an intermediate layer, and a decorative strip. The main body, being made of fresh rubber material having good physical properties, has a bottom surface provided with anti-slip ribs and a top surface defining a recess having specific depths respectively for a heel portion and a sole portion thereof. The intermediate layer, being made of mixture of recycled materials, is shaped to conform to the recess of the main body. The intermediate layer is disposed in the recess of the main body to be heated and pressed to fill the recess of the main body. The decorative strip, being made of fresh rubber material, is bonded to the main body along the periphery of the main body without stitching threads. Therefore, the sole structure has a flat top surface, a wear resistance and anti-slip characteristics, and can provide comfort in walking.

Description

TECHNICAL FIELD OF THE INVENTION[0001]The present invention relates to an improved sole structure and, more particularly, to a sole structure that employs a main body made of fresh rubber material to combine an intermediate layer made of recycled materials together with a decorative strip formed individually so as to lower the weight of the sole structure as well as afford an aesthetical appearance, adequate cushioning capacity, and comfort in walking.DESCRIPTION OF THE PRIOR ART[0002]Under the demands of environmental protection, for reducing the cost of a product, recycled materials are usually utilized in its manufacturing process. Conventionally, in manufacturing a sole, recycled materials are often added to fresh rubber material at a proportion to achieve the purpose of cost reduction and environmental protection. However, to prevent the physical properties of the sole product from be significantly effected, there is a proportion limit of adding the recycled materials into the ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A43B13/12A43B13/22
CPCA43B13/12A43B1/0027A43B1/12A43B13/226A43B13/181A43B9/00A43B13/14A43B13/04Y02W30/62
Inventor WU, HAN-CHING
Owner WU HAN CHING
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