Shoe with instep elastic insertion and insole with depressions

Abstract

A shoe having a sole (7), to which an upper (4) of the shoe is attached, and on whose upper side there is mounted an insole, while the upper (4) of the shoe in area of instep of the foot comprises at least one instep elastic insertion (41 1), which reduces pressure of the upper (4) of the shoe on the instep of the foot, while the insole on its top side comprises at least a depression for big toe joint and a depression or lowering for heel bone.

Description

TECHNICAL FIELD[0001]The invention relates to a shoe comprising a sole on top side of which there is mounted an insole to which an upper of the shoe is attached.BACKGROUND ART[0002]At present number of various types and structures of shoes is known. Their common disadvantage is that tough upper (whose toughness is quite often increased by connecting element / elements), which is firmly attached to the sole of the shoe, causes during walking unnatural and extreme load of foot instep and consequently also of all muscles and ligaments of the foot. As a result of this, also by healthy human with normally shaped foot, next to others, callosities are created, function and load of Achilles tendon is changed, functioning of protractors (extensors) and flexors of toes, especially of big toe, is reduced, hammer toes are created, and gradually longitudinal arch of the foot may collapse, thus the flat foot may evolve, and its vascular, lymphatic or nerve system may be even damaged. These processe...

AI Technical Summary

Benefits of technology

The invention is a shoe with an upper and an insole, which reduces pressure on the foot and distributes weight naturally. The shoe has an instep elastic insertion and a heel and ankle elastic insertion to help reduce tension and load on the lower parts of the body. An insole with a heel protrusion and longitudinal splint bone helps to stabilize the feet and transfer weight to the big toe joint. Overall, the shoe design promotes proper foot structure and biomechanics.

Problems solved by technology

Their common disadvantage is that tough upper (whose toughness is quite often increased by connecting element / elements), which is firmly attached to the sole of the shoe, causes during walking unnatural and extreme load of foot instep and consequently also of all muscles and ligaments of the foot.

As a result of this, also by healthy human with normally shaped foot, next to others, callosities are created, function and load of Achilles tendon is changed, functioning of protractors (extensors) and flexors of toes, especially of big toe, is reduced, hammer toes are created, and gradually longitudinal arch of the foot may collapse, thus the flat foot may evolve, and its vascular, lymphatic or nerve system may be even damaged.

These processes are moreover worsened when plane, possibly towards the toe cap lowered insole is used, which further contributes to unsuitable load of the foot through unnatural distribution of weight of human body into the whole surface of the foot, instead of its distribution among supporting parts of the foot—the big toe joint, toe joints and the heel bone.

Next to physical pain, accompanying effects of these changes which gradually penetrate not only into the whole lower limb but also into the whole body, are an excessive fatigue and psychic problems, which lowers quality of life.

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