ITPD20080225A1 - REMOVABLE PROTECTIVE INSOLE FOR SAFETY SHOES - Google Patents

Description

TITLE

REMOVABLE PROTECTIVE FOOTBED FOR

SAFETY FOOTWEAR

DESCRIPTION

The present patent relates to safety footwear and in particular concerns the protective insoles of safety footwear.

Safety footwear is an individual protective device, made in different types and shapes (shoes, boots, boots), depending on the uses for which it is intended and are used to protect the workers' feet from various types of risks such as impacts, blows, impacts, burns, caustications, punctures and crushing, cuts and abrasions, heat, flames, cold.

The safety shoes are equipped with a protective toecap, to protect the feet in case of falling material on the foot, and a puncture-proof sole, consisting of a steel plate that protects the foot from sharp materials that could penetrate the sole such as nails, sharp blades. or other.

The safety shoes are also equipped with a non-slip rubber sole, which also protects against the risk of electrocution, and a heat-insulating inner sole.

Currently, the production technique of safety footwear provides that the impervious insole and the protective toecap are incorporated into the sole and upper during the production of the shoe itself, obtaining, at the end of a known process, the finished shoe ready for use.

All this leads to various drawbacks and problems.

It is necessary to make insoles, toecaps and footwear for the various sizes with high production and storage costs.

If one of the parts such as the insole, toe or shoe has defects, the entire shoe must be discarded without being able to reuse the non-defective parts for the creation of a new shoe.

Each shoe size requires the preparation and preparation of the relative molds, shapes, shapes with expenditure of materials for their preparation and space for their storage. Moreover, this variety of sizes entails the possibility of error in the use of a specific part for the shoe of one size in the production of a shoe of different size.

Safety footwear, and in particular their soles and insoles, cannot be made of EVA as this material expands considerably after its injection and opening of the mold in contact with the air. In fact, the realization of EVA objects requires smaller molds of the object to be obtained. It is not possible to make EVA soles with incorporated insoles and toecaps.

If the shoe suffers damage to the insole and / or toe that limit the general safety of the shoe without thereby irreparably damaging the shoe, such as a heavy object that deforms the toe or a pointed element that deforms the insole without substantially damaging the shoe. rest of the shoe, the entire shoe must be thrown away without the possibility of replacing the insole and / or toe.

The production process described above therefore requires that all production operations are carried out in the same place and in direct sequence.

In order to obviate all the aforesaid drawbacks, a new type of removable protective insole for safety footwear has been studied and realized.

One purpose of the new insole is to make the production of the insole itself independent from the production of the other parts of the shoe.

Another purpose of the new insole is to be able to produce different types of footwear with the same insole.

Another purpose of the new insole is to allow its use even with footwear having a larger size close to the nominal size of the insole.

Another purpose of the new insole is to allow to discard only the insole and not the entire shoe if the insole itself presents defects.

Another purpose of the new insole is to allow its replacement when damaged, worn or simply no longer hygienic with a new insole having the maximum accident protection and hygienically clean.

These and other direct and complementary purposes are achieved by the new removable protective insole for safety footwear comprising a body made of plastic material, an anti-perforation insole, a protective toecap, a finishing coating.

The body of the new insole has a shape and size such as to incorporate both the anti-perforation insole and the protective toecap. Substantially, said body comprises a generally flat part corresponding to the sole of the foot, in whose thickness the anti-perforation insole is incorporated, and a domed front part, in whose thickness the protective tip is incorporated.

This body can be made of various plastic materials, preferably antistatic polyurethane plastic materials.

The anti-perforation insole is made up of a sheet preferably of metal, or of composite plastic materials. The protective toecap is a generic dome-shaped element designed to protect the front part of the foot and is made up of a sheet preferably of metal, or of composite plastic materials.

The lower part of said body of the new protective insole has reliefs and / or channels, for example reticular, suitable for creating a series of compartments between said protective insole and the footbed of the shoe. These compartments have the purpose of collecting the condensed humidity, emitted by the foot, so as to leave the foot drier.

The finishing coating has the function of improving the contact and the sensation returned to the user and can be made of fabric, leather or other suitable synthetic materials. Said finishing coating is preferably applied on the upper part of the insole and on the concave or internal part of the domed part of the protective toecap.

The characteristics of the new removable protective insole for safety footwear will be better clarified by the following description with reference to the drawing table, attached by way of non-limiting example.

Figure 1 illustrates a section of the new insole comprising a body (C) in plastic material, an anti-perforation insole (S), a protective toecap (P), a finishing coating (R).

The anti-perforation insole (S) and the protective toe cap (P) are fixed or in any case coupled so that the toe is positioned in the area of the toe of the insole (S), i.e. in its position of use.

The body (C) of the new insole incorporates and joins both said insole (S) and said tip (P) with the result of connecting them, covering them and forming a single body.

This body (C) can be made of various plastic materials, preferably antistatic polyurethane plastic materials.

The anti-perforation insole (S) consists of a foil or layer, preferably metallic, or of composite plastic materials resistant to perforation.

The protective toe cap (P) is a generic dome-shaped element consisting of a sheet or layer, preferably metallic, or made of crush-resistant composite plastic materials.

In the lower part of said body (C), reliefs and / or channels (Cc), for example reticular, are provided for creating a series of compartments between said protective insole and the footbed of the shoe. The condensed humidity, emitted by the foot, is collected in said compartments so as to leave the foot drier.

The finishing coating (R), applied on the upper part of the insole (S) and on the concave or internal part of the domed part of the protective toecap (P), can be made of fabric, leather or other suitable synthetic materials.

The new removable protective insole for safety footwear made as described above has considerable advantages.

The new insole can be produced independently of the production of the other parts of the shoe.

The new insole allows to reduce the operations to produce safety footwear. In fact, since the insole is removable, it is possible to produce footwear of a single size on which insoles of the same size or even one or two smaller sizes can be applied. Basically, protective insoles specific to the size of the shoe or insoles of a smaller size or, for example, even two smaller sizes can be inserted into the shoe of a certain size. The difference in size between the insole and the shoe is compensated with removable filling elements or, preferably, stably joined to the protective insole. Consequently, it is possible to produce footwear of a certain size, for example 42, and insert protective insoles for the identical size, in this case 42, or of one or two smaller sizes, in this case 41 or 40, having one or more filling elements. on the toe and / or on the hips so as to fit the smaller sizes without having to prepare and produce footwear for said smaller sizes.

The new protective insole allows to reduce the costs of waste or protective footwear not suitable for the required technical protection or a new design. In fact, if a protective insole is not adequate or defective, only the insole is discarded without discarding the entire protective shoe; identically, if a shoe has defects such as to make it unusable, the protective insole originally intended for it is used for another shoe without defects. The new insole can be replaced, both in case of wear and in case of damage, simply by extracting it from the shoe and inserting another new one. In this way the user only has to buy a pair of new insoles without having to buy a pair of more expensive complete safety shoes.

These are the schematic modalities sufficient for the skilled person to realize the invention, consequently, in concrete application there may be variations without prejudice to the substance of the innovative concept.

Therefore, with reference to the preceding description and to the attached table, the following claims are expressed.

Claims (8)

CLAIMS 1. Insole for safety footwear characterized by the fact of comprising a body (C) shaped in such a way as to accommodate in whole or in part at least the lower area and the front area of the foot, and where said body (C) incorporates and wraps an anti-perforation insole (S) and a protective toecap (P), and where said insole is removable, replaceable and is suitable to be inserted in a safety shoe. 2. Insole, as per claim 1, characterized by the fact that said body (C) has reliefs and / or channels (Cc) at the bottom suitable for creating a series of compartments between said protective insole and the footbed of the shoe. 3. Insole, as per claim 1, characterized in that it has further filling elements on the toe and / or on the sides so as to fit exactly even in larger footwear. 4. Insole, as per claim 1, characterized in that it has a finishing coating (R) applied on the upper part of the insole (S) and on the concave or internal part of the domed part of the protective toecap (P). 5. Insole, as per claims 1, 2, 3, 4, characterized in that said anti-perforation insole (S) is made of metal, composite plastic material, and / or other materials suitable for protecting against perforation. 6. Insole, as per claims 1, 2, 3, 4, characterized in that said protective toecap (P) is made of metal, composite plastic material, and / or other materials suitable for protecting against crushing. 7. Insole, as per claims 1, 2, 3, 4, characterized in that said body (C) is made of one or more plastic materials. 8. Insole, as per claims 1, 2, 3, 4, characterized in that said finishing covering (R) is made of fabric, leather or other suitable synthetic materials.