Shoe with elastic sole

Abstract

A shoe with elastic sole is disclosed. The shoe comprises an inner sole, an outer sole, an upper, and an elastic sole comprising a U-shaped cavity that has openings at the two lateral sides of the sole and a U-shaped spring pad made of carbon fiber plate provided in the cavity and between the inner sole and outer sole forming a highly elastic sole structure. A U-shaped spring tab is added to the core of the U-shaped portion of the U-shaped spring pad. Alternatively, the openings of the cavity at the two lateral sides of the sole can be closed, forming a totally enclosed cavity structure. Additionally, another U-shaped cavity with a U-shaped spring pad can be provided in the anterior portion of the sole, thus forming a sole structure with U-shaped spring pads both in the anterior and heel portion of the sole. A ventilation structure is provided between the inner sole and the outer sole. The vent structure comprises ventilation holes in the lateral and rear sides of the U-shaped cavity with check intake valves provided therein, and a ventilation hole in the front side of the U-shaped cavity with a check exhaust valve provided therein. The shoe has the advantages of large deformation and high elasticity during use that can provide comforts and forced ventilation with its simple structure that is suitable for manufacture by the footwear industry.

Description

[0001] 1. Field of the Invention[0002] The present invention relates to a shoe with elastic sole for personnel and daily use, and in particular, a shoe with elastic sole.[0003] 2. Background of the Invention[0004] With the improvement of the living conditions and change of life style, people are continuously seeking more comforts of shoes for daily use. Particularly, because people are attaching more and more importance to health improving exercises, there is a need for a kind of shoe that has a sole that can provide good cushioning during the course of health improving exercises. In order to satisfy such requirement, the footwear industry has developed numerous shoes of different kinds, mostly athletic shoes, which have spring cushioned soles to make the shoes comfortable to wear during normal walking and health improving exercises.[0005] Existing shoes with elastic soles have witnessed changes of structures on various aspects depending on different mechanisms attempted by inventor...

AI Technical Summary

Benefits of technology

0074] Referring to FIG. 1, FIG. 2, and FIG. 3, FIG. 3 shows the ventilation structure of the present invention. The ventilation structure 18 is provided between the inner sole and the outer sole, and said ventilation structure is formed by the enclosed U-shaped cavity 14 between the inner sole 11 and outer sole 12 of the heel constituting a totally enclosed air bag structure of the heel and also at least a ventilation hole 181 is provided at the peripheral side of the heel with at least a ventilation hole 182 in the front part of the U-shaped cavity 14, while several sub-ventilation holes 183 are provided in the peripheral sides of the inner sole 11 and outer sole 12 and some ventilation holes 184 (illustrated by dotted lines in FIG. 3) provided in the sole corresponding to the sub-ventilation holes 183 in which the ventilation hole 182, sub-ventilation holes 183 and the ventilation holes 184 in the soles are communicated. When the inner sole 11 is pressed down to deform by the wearer, parts of the air inside the air bag formed by the U-shaped chamber 14 will be discharged to the outside through sub-ventilation holes 183, while at the same time, sweat of the foot will be discharged to the outside together with the air through ventilation holes 184, making the shoe have the advantages of forced ventilation and better elasticity.

0075] In order to have a much better ventilation and elasticity, at least one check intake valve 1811, 1812, and 1813 can be provided at the ventilation hole of the heel in the enclosed U-shaped cavity 14 and at least one check exhaust valve is provided at the ventilation hole 182 of the front part of the U-shaped cavity 14. When the wearer lift up his foot, the inner sole 11 will also lift up due to the elastic force of the U-shaped spring pad 15, thus making the outside air flow into the air bag structure formed by the U-shaped chamber 14 through check intake valve 1811, 1812, and 1813. When the inner sole 11 and the U-shaped spring pad 15 is pressed down to deform by the wearer, the check intake valves 1811, 1812, and 1813 will close, thus making the air inside the air bag formed by the U-shaped chamber 14 discharged to the outside only through ventilation hole 182 and sub-ventilation holes 183, while at the same time, sweat of the foot will be discharged to the outside tog

Problems solved by technology

However, the soles of such kinds of shoes are mostly made of soft and flexible materials that have limited elastic effect, which can hardly satisfy the requirement for a shoe with high elastic effect.

Especially, after a period of use, the soles of such kind of shoes made of soft and flexible materials will lose the elastic effects because of wear, making it inconvenient and not practical to use.

However, because such elasticity is achieved by a very complicated mechanism such as column springs, it is difficult to produce and will result in high costs.

At the same time, said shoe is difficult to maintain and repair due to its complicated structure.

Obviously, there is really a need for improvement of this kind of shoe because it is not suitable for mass production by the footwear industry.

1. Said shoe produce low elasticity or spring effect because elasticity of said shoe is achieved by elastic plastic cubes 203 and 204, which do not provide high elasticity as required by the wearer. Obviously, there is room for further improvement.

2. Said shoe has a complicate sole structure that will result in relatively higher cost to produce. Elastic plastic cubes 203 and 204 a

Images