WO2016146397A1

WO2016146397A1 - Shoe having a spinal disk material damping element

Info

Publication number: WO2016146397A1
Application number: PCT/EP2016/054558
Authority: WO
Inventors: Jacqueline Yildirim
Original assignee: JACQ. GmbH
Priority date: 2015-03-19
Filing date: 2016-03-03
Publication date: 2016-09-22
Also published as: CA2987367A1; EP3270727A1; EP3270727B1; US20180064206A1; ES2739696T3; DE202016101153U1; DE102015204927A1

Abstract

The invention relates to a shoe (1), in particular a pump, high heel shoe, or stiletto, having an insole (3) and a heel (2), wherein in the heel (2) and/or in the insole (3), in particular in the heel and/or the ball region, at least one damping element (5, 5`, 5a, 5b, 5c, 5c`) is integrated. The invention is characterized in that 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

SHOE WITH RIBBON MATERIAL CUSHIONING ELEMENT

Background of the invention

The invention relates to a shoe, in particular pump, high heel shoe or stiletto, with an insole and a heel, wherein in the heel and / or in the insole, in particular in the heel and / or in the ball area, a damping element is integrated.

A shoe with arranged in the insole rubber elements is known from US 2007/0151124 AI.

Damping soles are used in particular for sports shoes to dampen the forces acting on the body during running and jumping. Since sports shoes have very thick soles, correspondingly large amounts of different damping materials can be used.

However, this is not possible with elegant women's shoes (high heels), as the design does not allow the use of large amounts of cushioning material. In addition, feet and joints are stressed when walking in high heels differently than jogging or walking. Women who like to wear high heels, therefore, have to live with side effects such as pain in the forefoot ("bale burning"), blisters, swollen feet, and even long-term damage to the joints and back.

It is known to put gel deposits on the painful areas in the shoes. However, this usually affects the fit of the shoe. Often, gel deposits as products against slipping or for a more grip in ho or recommended for large shoes. In addition, they should help to avoid pressure points and also in highly stressed areas cause relief The most common gel deposits are mostly silicone inserts, the damping properties are rather low to non-existent. ,

From US 2007/0151124 AI a shoe is known in which recesses are provided in the insole, in which inserts made of thermoplastic rubber material are used. In order to obtain a noticeable damping effect, the thickness of the inserts is chosen to be greater than the height of the recess inside the insole. However, this has the consequence that the inserts are noticeable as a foreign body, which haptically generally unnatural and disturbing, especially when walking

Object of the invention

It is an object of the invention to provide a shoe, in particular a ladies shoe with a high heel, which can be elegantly designed, provided with a high-quality design without sacrificing comfort and convenience.

Description of the invention

This object is achieved in that the damping element has a Shore D hardness in the range of 28-33, preferably in the range 28.5 to 29.5, a modulus of elasticity in the range of 28 - 38 MPa, preferably in the range 32nd - 36 MPa, and has a tensile stress of 9-11, preferably 9.5-10.5 MPa at 600% elongation. Such damping elements are referred to below as BSW elastomers (intervertebral disc material) damping elements.

The combination of these properties causes the BSW cushioning element to feel hard (as opposed to conventional cushioning elements used in shoes), and to withstand high compressive loads such as high heel shoes, for example. However, a large part of the introduced energy absorbs and thus causes a relief of the foot, knee joints and the spine. Due to the selected hardness and resulting from the parameters of the invention restoring and force behavior, the BSW damping elements can also be used effectively in elegant women's shoes with high heels, which was limited possible with conventional soft damping elements, as these either (due to the limited Platzes) have too little damping or (due to the soft material) are too unstable to ensure safe movement in the shoes.

The BSW damping elements have similar mechanical properties as an intervertebral disc implant. By using such BSW damping elements in the insole of shoes, pressure differences can be optimally compensated for and excellent shock absorption is achieved. In particular, the damping element according to the invention is characterized by a high resilience, a high stress cracking resistance and a high abrasion resistance. The shoe according to the invention thus enables a damping of the pressure on the forefoot (foot ball) and the heel.

Preferred embodiments of the invention

In a specific embodiment, the BSW damping element is formed as an insole or as part of the insole. The BSW damping element thus not only assumes the task of damping but also fulfills (at least partially) the functions of an insole (connection between outsole and insole or shoe upper).

Alternatively, the insole may have at least one recess, wherein the damping element (s) is or are arranged in the at least one recess. The insole is preferably made of a common insole material, such as leather, leather fabrics, synthetic fabric, etc .. The advantages of the invention are particularly effective, for shoes with high heels, preferably higher than 9 cm, and / or shoes with small sales areas (Stilettos), preferably 1 cm ² (Pfennigabsatz), since here on the ball area particularly large forces / pressure or in the heel area a particularly high pressure acts.

In addition to the BSW damping elements in the insole, further BSW damping elements can be integrated into the heel in the shoe, "integrated" in the context of the invention not meaning that the damping element must be arranged inside the heel, but rather with further heel elements forms the heel of the shoe.

Preferably, the damping element is made of a mixture of at least two thermoplastic elastomers.

The thermoplastic elastomers preferably differ in their Shore D hardness and / or their modulus of elasticity and / or in their tensile stress. Thus, these properties can be specifically influenced by the formulation of the various elastomers and thus adapted to different needs in order to obtain similar mechanical properties as they are found in a human or artificial disc.

It is particularly advantageous if the damping element has a bending elastic modulus (modulus of elasticity) in the range from 28 to 38 MPa.

In a particularly preferred embodiment of the shoe according to the invention, the thermoplastic elastomers are copolymer-based thermoplastic elastomers, in particular polyether soft segments. Particularly advantageous properties arise, for example, when poly (ether-ester) copolymers with Shore D hardnesses between 25 and 33 in mixing ratios of 70: 30 to 30:70, in particular in the ratio 60: 40 to 50: 50 are used. Alternatively, the thermoplastic elastomers may also be thermoplastic polyurethanes.

The BSW damping elements are preferably produced by extrusion in an injection molding process.

Preferably, the BSW damping elements are firmly fixed in the insole, in particular glued.

Preferably, at least one BSW damping element is integrated in the insole, i. the insole has a recess into which the damping element is inserted such that the damping element terminates with the insole. The depth of the recess and the thickness of the damping element are thus coordinated. For this purpose, it is advantageous if the damping element has a constant thickness of a few millimeters, in particular <5.5 mm, preferably <3 mm. By means of the BSW damping elements according to the invention, even with such a small thickness, an effective damping can still be achieved. By using BSW damping elements of constant thickness, the wearing comfort of the shoe is not adversely affected by the shape of the damping elements. The wearer does not feel and does not see the BSW damping elements, as they are an integral part of the insole and close with their surface.

In a particularly preferred embodiment of the shoe according to the invention, the heel is executed in sections as a damping element, which is arranged between two parts of a heel base.

In a particularly preferred embodiment, the heel damping element has a continuous vertical recess, through which a fixing element for fixing the heel-damping element can be performed on the two parts of the heel base 6.

The heel BSW damping element preferably has a thickness of a few millimeters, in particular at least 5.5 mm. It is particularly advantageous if the section of the heel designed as a BSW damping element is encased annularly. The damping element is thus protected against external influences. In addition, the annular sheath symbolizes the effect of the BWS material and indicates the extension of the disc, which is responsible for the "comfort comfort". The sheath can be designed as a cover, for example. Made of leather, or as a removable clip.

In order to increase the stability of the heel, the heel of the shoe can at least partially be made of carbon. For example, the paragraph may have a carbon frame construction.

The invention also relates to the use of a mixture of different elastomers, in particular based on copolymer with polyether soft segments for damping elements in shoes, especially in pumps, high heel shoes or stiletto shoes. However, the BSW cushioning elements can also be used advantageously in casual shoes, men's shoes, and in flat women's shoes, such as ballerinas, with or without a high heel.

The invention also relates to a method for producing a shoe, in particular a pump, high heel shoe or stiletto shoe, wherein first BSW damping elements are made of a mixture of at least two different elastomers. An insole and / or a heel is / are provided with at least one recess into which the damping element is finally inserted and fastened as an integral part of the insole / heel. For this, the insole material is first rolled on the strips and trimmed. The material thickness (thickness) of the insoles corresponds to that of the BSW damping elements. The insoles are cut at the points under heel and bale, so that these parts of the insoles can be removed. The resulting recesses are machined so that the BSW damping elements can be used accurately. In the ball area, the appropriate damping glued in place. In the heel area, on the other hand, the cut-out parts of the main body of the insole are first inserted again (possibly only slightly glued to the cut surfaces, so that they can not fall out during the further production of the shoes but can be removed again without destruction). This is very important as the heels must later be bolted through the insole after being squeezed out without screwing the cushioning member so as not to compromise the cushioning properties. Soles are applied and the shoes are removed after a balling and assembly of the heels. Subsequently, the parts cut out of the insole are lifted out in the heel area. The heels are screwed through the insoles, the damping elements inserted into the corresponding recesses and glued. The insoles are glued.

The shoe according to the invention comprises a sole with BSW damping elements for pressure absorption integrated into the insole or part of the insole, the BSW cushioning elements mimicking mechanical properties of an intervertebral disc implant and acting as an insole or as an integral part of the insole, in particular high heels on be worn for a long time with high comfort and comfort. The biomechanics of the BSW material, which is unique in the shoe sector, effectively reduces the effect of force on specific load points in the foot and thus provides a remedy for the unpleasant side effects as well as long-term side effects such as, for example, Pressure points and the deformation feet. A wearer with the hip of the invention described here can walk longer without pain in high heels.

Further advantages of the invention will become apparent from the description and the drawings. Likewise, according to the invention, the above-mentioned features and those which are still further developed can each be used individually for themselves or for a plurality of combinations of any kind. The embodiments shown and described are not intended to be exhaustive of the but rather have exemplary character for the description of the invention.

Detailed description of the invention and drawing

FIG. 1a shows an exploded view of a female cow according to the invention, the elements of the shoe being shown transparently.

FIG. 1b shows a side view of the shoe according to the invention from FIG.

la.

Fig. 2a, b show a perspective view and a side view of a

Bale cushioning element for a shoe according to the invention;

Fig. 3a, b show a perspective view and a side view of a

Heel cushioning element for a shoe according to the invention;

4a, b show a perspective view, a plan view and a

Sectional view of a heel cushioning element for a shoe according to the invention.

FIG. 5a shows a BWS damping element designed as an insole; FIG.

and

Fig. 5b shows a formed as a partial sole BWS damping element.

Fig. 1 shows a lady's shoe 1 with a high heel 2. The shoe 1 has an insole 3, which is provided in the ball area and heel area with recesses 4a, 4b. In the recesses 4a, 4b damping elements 5a, 5b are arranged. The recesses 4a, 4b of the insole 3 are just so large that the damping elements 5a, 5b can be accommodated in the unloaded state. The insole 3 with the damping elements 5a, 5b is covered with a sock 9. The paragraph 2 comprises a base body 6, which is interrupted in the lower third by a further recess 4c. In the further recess 4c is another damping element 5c (heel damping element), which is attached to the base body 6 of the paragraph 2 and forms with this the paragraph 2. The heel cushioning element 5c is surrounded by an annular sheathing 8 in the example shown in FIG. 1b.

A preferred embodiment of the individual damping elements 5a, 5b, 5c 'is shown in detail in FIGS. 2-5. The damping elements 5a, 5b to be arranged in the recesses 4a, 4b have a uniform thickness.

In FIGS. 5a, 5b, embodiments of the inventive BWS damping element 5, 5 ^{X are} shown, which are not arranged in recesses of the insole, but are themselves formed as insole or as part of the insole.

In the example shown, the heel cushioning element 5c 'has the same cross section as the base body 6 of the heel 2 in the region of the break, wherein (in contrast to the heel cushioning element 5c shown in FIGS. 1a, 1b) a continuous vertical recess 7 (ie in FIG Direction of the elongated extension of the paragraph 2) is provided, through which a fixing element for fixing the two parts of the heel base 6 with the heel-damping element 5c can be performed. The insertion of the heel cushioning element 5c can, for example, be effected in that the main body of the shoulder 2 is severed all around, but without severing an inner metal sleeve (fixing element). The heel cushioning element 5c is, for example, cut at the front with a cut and inserted into the gap between the two parts of the base body 6 and glued. The heel-damping element 5c is thus sandwiched between the two parts of the base body 6 of the paragraph 2. LIST OF REFERENCE NUMBERS

1 shoe

2 paragraph

3 insole

4a, 4b recesses in insole

4c recess in the shoulder (interruption of the heel base) 5a, 5b cushioning elements for the ball and heel area

5c, 5c 'heel-damping element

5 designed as a sole damping element

5 ^{Λ formed} as a partial sole damping element

6 main body of the paragraph

7 recess in the heel-damping element

8 sheathing

9 insole

Claims

claims

Shoe (1), in particular a pump, high heel shoe or stiletto, with an insole (3) and a heel (2), wherein in the heel (2) and / or in the insole (3), in particular in the heel and / or in the Ballenbereich, at least one damping element (5, 5 \ 5a, 5b, 5c, 5c ') is integrated, characterized in that 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 has a tensile stress of 9-11 at 600% elongation.

Shoe (1) according to claim 1, characterized in that the damping element (5, 5 ') as an insole (3) or as part of the insole (3) is formed.

Shoe (1) according to claim 1, characterized in that the insole (3) has at least one recess (4a, 4b), wherein in the at least one recess (4a, 4b) / the damping element (s) (5a, 5b) is / are arranged.

Shoe (1) according to one of the preceding claims, characterized in that the damping element (5,

5 5a, 5b, 5c, 5c ") is made from a mixture of at least two thermoplastic elastomers.

Shoe (1) according to claim 4, characterized in that the thermoplastic elastomers differ in their Shore D hardness and / or in their modulus of elasticity and / or in their tensile stress.

6. Shoe (1) according to one of claims 1 to 5, characterized in that it is the thermoplastic elastomers to thermoplastic elastomers on a copolymer basis, in particular with soft polyether segments.

7. Shoe (1) according to one of claims 1 to 5, characterized in that it is thermoplastic polyurethanes in the thermoplastic elastomers.

8. Shoe (1) according to one of the preceding claims, characterized in that the damping elements (5a, 5b, 5c, 5c) integral with the insole (3), in particular glued.

9. shoe (1) according to any one of the preceding claims, characterized in that the damping elements (5, 5 \ 5a, 5b, 5c, 5c ') has a constant thickness of a few millimeters, in particular <5.5 mm, preferably <3 mm.

10. shoe (1) according to any one of the preceding claims, characterized in that the paragraph (2) in sections as a damping element (5c, 5c ') is executed, which is arranged between two parts of a heel base (6).

11. Shoe (1) according to claim 10, characterized in that the heel-damping element (5c ¹ ) has a continuous vertical recess (7) through which a fixing element for fixing the heel-damping element (5c ^x ) to the two parts of Paragraph base 6 can be performed.

12. Shoe (1) according to claim 10 or 11, characterized in that as the damping element (5c, 5c ') formed portion of the shoulder (2) is encased annular.

13. Shoe (1) according to one of the preceding claims, characterized in that the shoulder (2) has a frame construction made of carbon.

14. Use of a material having a Shore hardness in the range of 28-33, preferably in the range 28.5 to 29.5, a modulus of elasticity in the range of 28-38 MPa, preferably in the range 32-36 MPa, and a Tensile stress of 9-11, preferably of 9.5-10.5 MPa at 600% elongation for damping elements (5, 5 \ 5a, 5b, 5c, 5c ') in shoes (1), in particular in pumps, high heel shoes or stilettos.

15. Use according to claim 14, characterized in that the material comprises a mixture of different elastomers, in particular based on copolymer with polyether soft segments.