ES2667629A1 - FOOTWEAR FOR FOOTWEAR (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Floor for footwear. It is a floor in which the sole (1) forms a one-piece body with the template (2), all obtained through a manufacturing process by 3D printing, which allows a customizable floor, ideal for orthopedic applications . Manufacturing using the 3D printing process, allows the use of different materials as well as the densities thereof depending on the hunting needs of the floor area, as well as making hollows, decorative reliefs, etc. Similarly, the ability to have a 3D computer model prior to its manufacture can simulate the use of such a model, in order to discard designs that may not be valid, thus achieving significant economic savings. (Machine-translation by Google Translate, not legally binding)

Description

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FLAT FOR FOOTWEAR

D E S C R I P C I Ó N

OBJECT OF THE INVENTION

The present invention relates to a floor for footwear, the novelty of which resides in that it is embodied in a customizable orthopedic sole and manufactured by additive technologies, that is by the use of 3D printers.

The object of the invention is to provide a floor for footwear that is orthopedic and customizable, in which the sole forms a single piece body with the insole, in the manufacturing process itself.

BACKGROUND OF THE INVENTION

The insoles for footwear are supplied to be placed inside the footwear itself, being in some cases intended to solve certain problems or achieve greater comfort for the user's foot.

However, in practice, there are complaints about the adequacy of the templates to the needs of each user, because they are usually prefabricated, and not personalized.

However, in those cases in which the template is customized, its behavior depends on the stiffness of the sole of the footwear and the stability in contact with the footwear itself.

In PCT ES 2013070748 a template for unified footwear and a manufacturing process thereof are described, so that the template in question consists of three pieces, a so-called lining, which determines the top layer, a layer of spongy material, which determines the intermediate layer, and a third or base support and that constitutes the plant.

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Therefore, in said register the template obtained is achieved based on the superposition and fixing of three different pieces together.

That is, the sole that participates in footwear does not have a single-piece character with the insole itself, with the problems and inconveniences that this implies.

DESCRIPTION OF THE INVENTION

The floor for footwear that is recommended has the particularity of being obtained as a single piece in which the sole and the template are combined, based on additive technology or 3D printing, which allows to manufacture a sole with the template in a way fully personalized and with a single character.

More specifically, the sole of the invention has the advantage that the connection of the template with the sole is perfect, forming a single piece with a customizable character, when manufactured using 3D printing technology, all with very high manufacturing costs reduced

In this way, the sole of the invention can be adapted to the requirements of any shoe manufacturer to complete the footwear, with the particularity that the customization allows to make pairs of sole more insole adapted to feet that are not symmetrical.

On the other hand, and due to 3D printing or additive manufacturing of the sole, the connection between the sole and template can have the desired elasticity, thanks to the freedom of design that 3D printing gives, and can be a flexible connection, Either a semi-rigid connection, or even a rigid connection.

As for the materials to be used, they may be whatever the result is suitable for use in terms of mechanical properties (elasticity, tensile and abrasion resistance, etc.), and biological.

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Another important feature of the sole is that due to 3D printing manufacturing it is possible to vary the densities from one area to another of the sole itself, so that the final properties, using the same material, can vary according to the area, allowing to give greater rigidity to some areas than others, as well as greater or less roughness or even greater or lesser resistance depending on the wear expected for each area of the sole.

Likewise, through 3D printing manufacturing, geometries can be achieved that are difficult to achieve through traditional manufacturing systems, such as being able to make drawings on the sole, creating holes, etc., and all this to suit and request of the client himself , since it does not require additional manufacturing costs, but simply to modify the files that are sent to the 3D printer.

These computer files will also allow the possibility of studying, through structural calculation programs, alleged prototypes before they are physically materialized, so that their behavior can be studied virtually before being manufactured.

Finally, it is possible to add special hardness or anti-abrasive particles to the printing material, to increase the abrasion resistance of the sole, and consequently the duration of the shoe or its adhesion.

DESCRIPTION OF THE DRAWINGS

To complement the description that will then be made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical implementation thereof, a set of drawings is attached as an integral part of said description. where, for illustrative and non-limiting purposes, the following has been represented:

Figure 1.- Shows an exploded schematic view of a sole and insole made according to the object of the invention, elements that appear separated to facilitate the visualization of their formal characteristics, although they will be obtained by 3D printing in one piece. .

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Figure 2.- It shows a sectional view of a sole with its template, in which the connection between the two is flexible.

Figure 3.- Shows a sectional view of a sole with its template, in which the connection between the two is semi-rigid.

Figure 4.- Shows a sectional view of a sole with its template, in which the connection between the two is rigid.

Figures 5a, 5b, 6a and 6b.- Show side elevation views of embodiments of the sole of the invention.

Figure 7.- Shows a bottom plan view of a sole with legends.

Figure 8 shows a side elevation view of a sole also with legends.

Figure 9.- Shows a plan view of a sole with two shaded areas, corresponding to areas of greater hardness.

Figure 10.- Shows, finally, a side elevation view of a shoe with the sole forming a single piece body with the insole and the corresponding cut of the footwear.

PREFERRED EMBODIMENT OF THE INVENTION

In view of the figures outlined, and in particular of Figure 1, the sole of the invention is characterized in that the sole body (1) forms with the corresponding template (2) a single piece body obtained by 3D printing , so that the single piece formed by said sole (1) and template (2) can be constituted in any type of material appropriate to this printing technology, being able to use different materials or densities thereof, as represented in the Figures 5 and 6, said hollow monobody assembly (3) being incorporated, obtained directly during its process of

3D printing, depending on the specific structural needs of each case.

This way of obtaining the sole makes it very easy to obtain soles with capricious designs, including letters (4), drawings or graphics in relief, as shown in 5 figures 7 and 8.

On the other hand, and as shown in Figure 9, different materials or mixture thereof can be used to obtain areas (7) of the sole with additional properties, such as greater wear resistance, in those areas that are subject to greater 10 friction, being able to design the sole of the shoe in a personalized way depending on the way of walking (pronator / supinator), that the user has.

In any case, and as stated previously, sole (1) and template (2) will have a single-piece character, so that the connection between them can be carried out by flexible joints (5), as shown in the figure 2, semi-rigid joints (5 '), as shown in Figure 3, or rigid joints (5), as shown in Figure 4, in any case the whole assembly being obtained in the same 3D printing process.

From this sole-template single piece set, and according to figure 10, the corresponding cut (6) will be fixed on it, according to the different design lines provided for footwear.

Claims (1)

5 10 fifteen twenty 25 30 R E I V I N D I C A C I O N E S 1a.- Footwear floor, characterized in that it is constituted from a sole itself (1) that forms a mono-piece body with the corresponding template (2), so that said one-piece body is obtained by a 3D printing process from one or more materials or mixture thereof and a custom 3D model. 2nd floor for footwear, according to claim 1, characterized in that flexible joints (5) are established between the sole (1) and insole and also forming part of said body with a single piece. 3a.-Floor for footwear, according to claim 1, characterized in that between the sole (1) and insole and also forming part of said body with a single piece, semi-rigid joints (5 ’) are established. 4th-Floor for footwear, according to claim 1, characterized in that a rigid joint (5 ’’) is established between the sole (1) and insole and also forming part of said body with a single piece. 5th.- Floor for footwear, according to claim 1, characterized in that in the sole (1) zones of different density and hardness (7) are defined. 6a.- Floor for footwear, according to claim 1, characterized in that in the sole (1) holes (3) are defined. 7a.- Floor for footwear, according to claim 1, characterized in that the sole (1) defines letters (4), drawings or graphics in relief. 8a.- Footwear floor, according to claim 1, characterized in that the material used in obtaining certain areas of the footwear is capable of including abrasion particles.