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Waterproof shoe

A technology for waterproof shoes and shoe uppers, which is applied to shoe uppers, footwear, footwear, etc., and can solve problems such as water leakage

Inactive Publication Date: 2011-07-27
CREATIVE WORKSHOP INTL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Yet because the two ends of the upper material edge 19 all can be subjected to the traction of the insole 17 with holes, and simultaneously the two ends of the lower edge 27 of the functional material layer 15 all have no tractable objects, like this, the two ends of the lower edge 27 Can easily tear away from the adhesive point and wrinkle, so it is easy to leak

Method used

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Experimental program
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Embodiment Construction

[0016] The improved waterproof footwear of the present invention is best described in conjunction with the prior art. figure 1 It is the structural diagram of US Patent 5,628,127. First, in figure 1 In this case, the lower edge 27 of the layer of functional material 15 is free, with no obvious means for fixing it. In this way, during the injection process, the lower edge 27 is easy to wrinkle, forming a water leakage gap.

[0017] Secondly, there is apparently no means for fixing the perforated insole 17 . In actual use, the perforated insole 17 can abut against the bottom 33 of the rear end 25 by its own tension. In this way, the space between the perforated insole 17 and the lower edge 27 of the layer of functional material 15 may no longer exist. This tendency causes the lower edge 27 to be pushed against the bottom 33 by the perforated insole 17 . Then, there may not be any space at both ends of the lower edge 27 . Injected plastic cannot enter such narrow gaps that ...

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Abstract

An improved waterproof shoe incorporates several improvements. All layer-edges are connected to a net-typed insole. Neighboring layers are glued together to reduce leaking tunnels formed by crinkles therebetween. An ethylene vinyl acetate with a broad melt transition is added as a spacer to ensure sufficient injection spaces. Net-typed material is used for the material insole to ensure tension stress and mesh size. A water-absorbent and durable lining is added inside the waterproof functional layer to protect the functional layer from the damage by foot. Different materials are used for the sole to distinguish an inner sole which has the best injecting character and an outer sole which is commonly used for touching the ground.

Description

technical field [0001] The invention relates to a waterproof shoe, in particular to a shoe with a shoe upper part, a shoe inner bottom and a shoe sole. The joining of the components gives the shoe its waterproof properties. Background technique [0002] Waterproof shoes are commonly used in daily life. There are many authorized patents on waterproof footwear. One of these is US Patent 5,628,127, filed April 11, 1995. As we all know, waterproof shoes must be made of waterproof materials, and the waterproof materials of various parts (upper part, insole and sole) must be joined to each other. For example, the upper part must be glued tightly to the sole. Therefore, water leakage tends to easily occur at the joining portion. Initially, many patents in this technical field used waterproof glue to fill all joint gaps. But this process is inefficient and the effect is not significant. The injection process was then proposed to join all the parts (upper part, insole and sole...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A43B7/12A43B9/12
CPCA43B7/12A43B23/0215A43B23/0235A43B23/021B29D35/10
Inventor 石钰龄
Owner CREATIVE WORKSHOP INTL