Shoe having a spinal disk material damping element

Abstract

A shoe such as a pump, high heel shoe, or stiletto, has an insole and a heel. In the heel, the insole and / or the ball region, at least one damping element is integrated. The damping element has a Shore D hardness in the range of 28-33, a modulus of elasticity in the range of 28-38 MPa, and a tensile stress of 9-11 at 600% elongation. In this way, a shoe is realized that is elegantly fashioned and can be provided with a high-quality design without having to compromise on comfort and convenience.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This continuation application claims priority to PCT / EP2016 / 054558 filed on Mar. 3, 2016 which has published as WO 2016 / 146397 A1 and also the German application number 10 2015 204 927.2 filed on Mar. 19, 2015, the entire contents of which are fully incorporated herein with these references.FIELD OF THE INVENTION[0002]The invention relates to a shoe, in particular a pump, high-heel shoe or stiletto, having an insole and a heel, wherein a damping element is integrated in the heel and / or in the insole, in particular in the region of the heel and / or the ball of the foot.BACKGROUND OF THE INVENTION[0003]A shoe having rubber elements arranged in the insole is known from US 2007 / 0151124 A1.[0004]Damping soles are used in particular in sports shoes in order to damp the forces which act on the body when running and jumping. Since sports shoes can have very thick soles, correspondingly large quantities of different damping materials can be used.[0...

AI Technical Summary

Benefits of technology

[0010]The combination of these properties results in the BSW damping element, on the one hand, feeling (in contrast to conventional damping elements used in shoes) hard, with a high pressure loading, as is the case, for example, in shoes with high narrow heels, but absorbing a large portion of the energy which is introduced and consequently bringing about relief of the foot joints, knee joints and the spine. As a result of the selected hardness and the restoring and force action behaviour resulting from the parameters according to the invention, the BSW damping elements can also be effectively used in elegant ladies' shoes with high heels which was only possible in a limited manner with conventional soft damping elements since these either (as a result of the limited space) have too little damping or (as a result of the soft material) are too unstable to ensure secure movement while wearing the shoes.

[0011]The BSW damping elements have similar mechanical properties to an intervertebral disc implant. As a result of the use of such BSW damping elements in the insole of shoes, pressure differences can be compensated for in an optimum manner and excellent shock absorption is achieved. In particular, the damping element according to the invention is distinguished by a high resilience, a high stress crack resistance and a high abrasion resistance. The shoe according to the invention consequently allows damping of the pressure on the front foot (balls of feet) and the heel.Preferred Embodiments of the Invention

[0023]Preferably, at least one BSW damping element is integrated in the insole, that is to say, the insole has a recess in which the damping element is inserted in such a manner that the damping element ends flush with the insole. The depth of the recess and the thickness of the damping element are thus adapted to each other. To this end, it is advantageous for the damping element to have a constant thickness of a few millimetres, in particular 5.5 mm, preferably 3 mm. As a result of the BSW damping elements according to the invention, effective damping can be achieved even with such a small thickness. By using BSW damping elements with a constant thickness, the wear comfort of the shoe is not influenced in a negative manner by the shape of the damping elements. The wearer does not feel and see the BSW damping element since these are an integral component of the insole and ends flush with the surface thereof.

[0027]It is particularly advantageous for the portion of the heel which is constructed as a BSW damping element to be covered in an annular manner. The damping element is consequently protected from external influences. Furthermore, the annular cover indicates the effect of the BSW material and indicates the extension of the intervertebral disc which is responsible for the “comfort / convenience”. The cover may be constructed as a coating, for example, of leather, or as a removable clip.

[0031]The shoe according to the invention comprises a sole with BSW damping elements for pressure absorption which are integrated in the insole or are part of the insole, wherein the BSW damping elements imitate mechanical properties of an intervertebral disc implant and acting as an insole or an integral component of the insole results in particular in high heels being able to be worn over a longer period of time with a high degree of wearing comfort and convenience. The biomechanics of the BSW material which is unique in the shoe sector brings about an effective reduction of the action of force on specific loading locations in the foot and thus provides a remedy for the unpleasant symptoms and long-term side-effects, such as, for example, pressure marks and the deformation of the feet. A wearer using the invention described here can walk longer in high heels without any pain.

Problems solved by technology

Particularly with elegant ladies' shoes (high heels), however, this is not possible since the design does not permit the use of large quantities of damping material.

In addition, feet and joints are subjected to different loads when walking in high heels from those when jogging or walking.

Ladies who like to wear high heels therefore have to live with side-effects such as pain in the front foot (“burning of the balls of the feet”), blisters, swollen feet, up to long-term damage for the joints and back.

However, this impairs the fit of the shoe in most cases.

Current gel inlays are in most cases silicon inlays whose damping properties are, however, rather low or not present.

However, this results in the inserts being able to be perceived as foreign bodies which is haptically generally perceived to be unnatural and disruptive, in particular during walking.

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