EA032561B1 - Non-slip tread with alveolar structure - Google Patents

Abstract

The present invention concerns a non-slip tread, applicable to the footwear, having, in correspondence of the heel and the front half-sole, two areas with alveolar structure whose cells consist of walls (2) converging on a hole (3) to form a funnel-shaped surface. Each hole (3) is a through hole, that is, it passes right through the thickness of the tread (1) and communicates with a transverse channel (4) for lateral outflow made inside the tread (1).

Description

This invention relates to a non-slip tread used in shoes, having two zones corresponding to the heel and front halves of the sole, with an alveolar structure, the cells of which consist of walls (2) converging at the hole (3) with the formation of a funnel-shaped surface. Each hole (3) is a through hole, i.e. it passes through the thickness of the tread (1) and is connected to the transverse channel (4) for lateral outflow made inside the tread (1).

032 561 Β1

FIELD OF THE INVENTION

This invention relates to a non-slip tread with an alveolar structure, applicable to shoes, having holes connected to the internal transverse channels for lateral flow.

State of the art

It is known that walking on hard wet surfaces is facilitated by shoes having soles made of very soft rubber, on which a tread is made with special notches or grooves that prevent slipping and help maintain body balance.

If the soil on which the shoes are located is natural soil, then to improve traction, it is known to supply a part of the sole mounted on the soil with a tread consisting of a pattern with protruding parts of different depths obtained by casting, which provide good penetration and coordination with the soil clutch. Even if they are designed in advance, the above protruding parts, however, do not provide good adhesion of the shoe to the ground when it has a smooth wet surface, since their presence reduces the contact surface of the sole with the specified surface and they retain water in the cavities.

The non-slip properties of the sole are usually determined by the type of material from which it is made, which should be soft rubber, and the design or tread pattern.

Designs or tread patterns must be specially designed to facilitate the greatest possible release of water from them during compression of the sole on a wet surface.

Currently, there is the so-called boat shoes designed to prevent aquaplaning, which occurs when a water film forms between the tread and the ground with a corresponding loss of adhesion and balance of the user.

To prevent aquaplaning, the shoe has a sole with a completely smooth tread that has small cuts in the sole, usually, but not exclusively, made of rubber, which during normal walking will open these openings, which spread their entire surface over a hard, wet surface and absorb water from below, which contributes to direct contact of the tread with the coating, however, while reducing the contact surface with the ground.

The prior art document I8 2009/090031 A1, which discloses the introduction of cotton fibers or similar material into special recesses of the tread with holes that are connected to the internal channels. The tread has a structure with cells having walls converging on a hole filled with cotton fibers, which, however, cannot fulfill the function of a funnel while walking, since these fibers form a barrier that prevents free and quick expulsion of water, so that the patent claims applications constantly mention moisture absorbing elements.

In addition, the contact surface of soft rubber (or similar material) of the tread necessary for good adhesion to the ground is almost absent in this document, since almost the entire surface of the tread is occupied by elements made of cotton fibers designed to absorb moisture, and this does not guarantee proper adhesion , not to mention the fact that the cotton fibers of these elements lose part of their absorption capacity when they adhere to the tread, and lose it completely after a short time of use anija on the ground, where they generally come into contact with water, mixed with various other substances that clog the fibers, which on drying can lead to the opposite effect, i.e. to slip.

As an example, just like the soles of shoes, tire treads should also solve the problem of traction, leading to gliding and aquaplaning of cars.

These tires are also made of very soft rubber and have special grooves or grooves on their surface that, due to the displacement of water from them, prevent the formation of a water film (aquaplaning) between the tire surface and wet asphalt or pavement.

Grooves or recesses made on the surface of the tire are used to create the space necessary to remove water from the part under the tire. Maintaining good traction is ensured by thick grooves or recesses of the tread, which extend along the axis of the tire. The relationship between the surface of the grooves or recesses on the tread and the surface of the protruding parts affects the full contact surface of the tire with the ground. Therefore, a large number of grooves or grooves indicates a low tire grip on dry roads, in return for more water removal on wet roads.

As is well known, two types of tires are used to provide the best possible traction in racing cars: smooth tires for use on dry roads, which use the entire ground contact surface, and grooves of various sizes used on wet roads, as they have the ability to removing water on the ground to prevent aquaplaning.

When transferring this example to the field of shoes, we can conclude that in order to obtain a protecto

- 1,032,561 ra with better grip than shoes on the market, the tread must have both of the above characteristics, namely a possibly large contact surface with soil for better grip and the ability to displace as much water as possible at the moment of contact with the ground to prevent aquaplaning .

SUMMARY OF THE INVENTION

The aim of this invention is to provide a tread that does not slip on a hard wet coating.

Another objective of the present invention is to provide a tread that can prevent aquaplaning.

Another objective of this invention is to provide a tread that, when in contact with the ground, provides complete and rapid displacement of water from the coating by holding it inside its recesses or grooves while using its entire contact surface with the ground for better adhesion.

Another objective of this invention is to provide a non-slip and non-aquaplaning tread that has a large contact surface between it and the ground.

Another objective of the present invention is to provide a non-slip tread that can be simply incorporated into known products, such as the soles of low shoes or boots.

Another objective of this invention is to provide a tread that provides better grip on a hard wet coating.

Another objective of this invention is the creation of a tread sole for shoes, which prevents slipping and aquaplaning and at the same time provides excellent comfort when walking on any type of surface.

These and other objectives are achieved using the present invention, which relates to a non-slip tread with an alveolar structure having openings connected to the transverse channels for lateral flow made inside the tread.

Other features and advantages of the invention result from the following description of a preferred, but not exclusive embodiment of the product that is the subject of this invention, with reference to the accompanying drawings, which show, by way of example:

in FIG. 1 - protector (1) of a non-slip sole of the shoe with two corresponding heel and front half of the sole with zones with an alveolar structure, the cells of which consist of walls (2) converging at the hole (3) with the formation of a funnel-shaped surface, in front view;

in FIG. 2 - protector (1) of a non-slip sole in which the transverse channels (4) are highlighted, in side view;

in FIG. 3 - section of the tread (1) of a non-slip sole in which it is highlighted that the holes (3) in which the walls (2) converge are through holes that pass through the thickness of the tread (1) and are connected to the transverse channels (4) inside the sole for lateral flow of water, which go;

in FIG. 4 - protector (1) with the alveolar structure of the non-slip sole in isometric view;

in FIG. 5 - detail of the tread (1) of the non-slip sole of the shoe.

DETAILED DESCRIPTION OF THE INVENTION

According to a preferred, but non-limiting embodiment, the present invention relates to a non-slip tread 1 for shoes having, in accordance with the heel and the front half of the sole, two zones with an alveolar structure, the cells of which consist of walls 2, converging on the opening 3 with the formation of a shaped funnels of the surface. Each hole 3 is a through hole, i.e. it passes through the thickness of the tread 1 and is connected to the transverse channel 4 made inside the tread 1.

The term alveolar structure refers to a structure consisting of cells or arches of any shape having walls 2 converging on the opening 3 to simulate a funnel-shaped surface into which water can penetrate and be pushed out or transported into the transverse channel 4 for leakage then to the sides. The hexagonal shape of the alveolar structure shown in the figures of this application is only the preferred, but non-restrictive structure of this patent application.

As shown in a front view in FIG. 1, in the tread 1 of the sole there are horizontal rows of holes 3. These rows of holes 3 correspond in a side view in FIG. 2 internal transverse channels 4.

The special alveolar structure of the tread 1, in which the walls 2 converge on the hole 3 with the formation of a funnel-shaped surface, ensures that during normal walking on hard wet surfaces the tread does not slip, since during the setting of the foot this structure ensures the expulsion of water along which go inside the sole, which, when flowing through the hole 3, enters the inner transverse channel 4 for leakage then outward on the sides.

During walking, when the weight of the person falls on the boot, water thanks to the funnel-shaped surfaces of the alveolar structure of the tread 1, which is compressed on the ground, and then expanded

- 2 032561 rushes on the ground due to compression, is pushed into the hole 3 for flowing then into the inner transverse channel 4 and flowing outward on the sides. Thus, the inner transverse channels 4 are drainage for water, which the sole protector 1 collects inside.

The funnel-shaped surfaces of the alveolar structure of the tread 1, which are flattened on the ground while pressing the ground with the foot and therefore push the water inward through the openings 3, provide better adhesion of the tread 1 to wet soil and a better balance for the sole user according to the invention.

In addition, the alveolar structure of the tread 1 of the sole, since it is made of funnel-shaped surfaces and therefore without large protrusions, provides the user with greater comfort on all types of surfaces, wet or dry.

For the purpose of manufacturing a non-slip tread 1, the manufacturing method is secondary, since said non-slip tread 1 can be a single body consisting of a tread 1 with an alveolar structure and internal transverse channels 4 made on the profile, or it can consist of a tread 1 with an alveolar structure, glued to the midsole, on which the transverse channels 4 are made.

The materials and dimensions of the invention indicated in the above description, depicted in the accompanying drawings and indicated in the claims, can be of any kind in accordance with the requirements. In addition, all parts may be replaced by other technically equivalent parts without departing from the scope of protection of this patent application.

Claims (2)

CLAIM 1. Non-slip tread for shoes, characterized in that it contains an alveolar structure with cells of any shape, consisting of walls (2) converging into the hole (3) with the formation of a funnel-shaped surface; holes (3) passing through the thickness of the tread, forming rows and corresponding to the transverse channels (4) made inside the tread, the cells being made so that they have funnel-shaped surfaces formed by the walls (2) of the cells of the alveolar structure that converge into the holes (3 ), when compressed on the soil surface, they are so flattened on the base that their size on the base increases. 2. The non-slip tread according to claim 1, characterized in that the funnel-shaped surfaces formed by the walls (2) of the cells of the alveolar structure are configured to draw water into the hole (3) while compressing them on the pavement with subsequent flow of water into the transverse channels ( 4), made inside the tread (1), and flowing out on the sides.