JPH02161902A - Sports shoe - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to sports-on-use or boots, and in particular to soccer shoes.

(Prior Art) West German Published Patent Application (DE-O3) No. 3148038 discloses a sports shoe or boot of the type described above, in which each stud is connected to the outsole. It includes an integral protrusion, an annular body supported by the protrusion, and a stud case portion also supported by the protrusion. This stud case part is
It abuts the underside of the outsole by means of a ring which is fixed to the projection by an active connection and exhibits compression elasticity.

The stud case is made of a material that is considerably more resistant to abrasion than the material of the outsole, and therefore has less elastic flex than the latter.

However, since the protrusion supporting the stud case part and the annular body is integrated with the outsole made of a material that deforms more easily, the protrusion is able to withstand compressive force and bending direction loads. The rivet is capable of flexing when subjected to stress and is therefore elastic in its entirety. That feature allows the outsole to be loaded at a lower level than the ground-engaging surface of the stud, while retaining the flexibility of the stud that is typical for soles provided with the stud. and can be manufactured from a more flexible material without reducing the useful life of the studded sole.

It is also possible to make the entire outsole for a sports shoe or boot with integrally formed studs from a material that is highly resistant to abrasion, thereby reducing the rate of abrasion that occurs at the stud locations; It is also known to attempt to increase the useful life of the outsole, but this results in an expensive solution. However, because the stud material is harder and more resistant to abrasion and abrasion, the stud is relatively inflexible and therefore has shock absorbing properties, which are desirable in themselves for studded shoes and boots. As a result, it is considerably reduced.

Finally, also with regard to plugs or hooks, i.e. replaceable gripping elements, elastic rubber can be used between the holding part, for example made of metal, and the support part, which forms the ground-engaging surface and is made of an abrasion-resistant material. It is already known to provide an elastic rubber body which is connected to the holding part and to the supporting part by vulcanization (DE-O3) No. 2313648). . However, such a method of fixing the lower chain forming the ground-engaging surface to the flexible annular body and the outsole is not acceptable due to the price of studded shoes or boots. . This is because the 6 stud requires the lower body part of the stud and the elastic rubber body to be manufactured separately, and it is necessary to connect these parts to each other and to the outsole. This is because it occurs. Furthermore, it is not possible to make sulfided connections for all arbitrary combinations of sole materials.

OBJECT OF THE INVENTION It is an object of the invention to provide studded sports shoes or boots of the above-mentioned type, which, due to the outsole and the studs, are wear-resistant and therefore harder. An object of the present invention is to provide a sports shoe or boot with studs that can have the damping elasticity of the studs that is desirable for the shoes or boots with studs even when using a material that is similar to the material.

(Means for Solving the Problems and Effects) According to the present invention, the objects are achieved by the forms described in the claims.

In the known stud configuration, which the present invention takes as its basic starting point, the outsole and therefore the stud projection to which the stud case part is to be attached are elastically deformed by compression. The material is made of a material capable of
Even though the stud case is relatively unflexible, it can be ensured that the stud as a whole has a shock absorbing effect. Conversely, in the present invention, the outsole, the lower part of the stud body, and the connecting handle connecting the stud body to the outsole are made of a material that is relatively resistant to abrasion; This material therefore does not deform appreciably under compressive forces.

Nevertheless, in that configuration the entire prerecording has the desired flexibility. This is because the connecting shank is generally relatively thin compared to the transverse dimensions of the previous record, for example its diameter is only one quarter of the diameter of the previous record.
That's why. This means that even when a slightly eccentric load is applied to the prerecording, i.e. even when the force applied to the prerecording is not in the axial direction of the connecting shank, the flexible annular body is compressed on one side. At the same time, the connecting handle portion is made to elastically bend.

Since it is only in very rare circumstances that the force applied to the fore-record is precisely aligned with the axis of the connecting shank, such a tilting movement of the fore-record may exhibit the desired elasticity for the stud in question. become.

Furthermore, even when the connecting handle is subjected to a central load, the connecting handle will be relatively highly compressed due to its small cross section, and even in that case, the previous record shows that the desired bending characteristics can be achieved. will have the following.

Thereby, according to the invention, the elastically bendable annular body is actively fixed to the front record, so that the annular body is made of a material that cannot be connected to the outsole; Or it can be made of a material that can only be connected to the outsole with great difficulty.

However, according to the invention it is also advantageous for the annular body and the outsole to be made of materials that are connected to each other by a molding operation. This is true, for example, for the bottom of the bottom and the bottom of the previous record.
When polyurethanes of different densities are used, i.e. when the material is hardened and when polyurethanes are used in the abrasion-resistant form so as to contain elasticity primarily in the bending direction, the material for the annular body is elastomeric. This is when the data is in a format that can be compressed into

It will be appreciated that the effect that the invention seeks to achieve depends on the respective relationship between the elastic modulus of the annular body material and the elastic modulus of the outsole material. However, even when using a relatively stiff sole material that is primarily elastic in the direction of flexion, if the inner diameter of the annular body, and therefore the diameter of the connecting shank, is only a quarter of the diameter of the previous record. If it is between 1 and half, the previous record has sufficient flexibility.

The manufacturing method is relatively simple. That is, before the outsole is molded, the elastic annular body is placed in a four part in a molding tool that forms the foreboard.

In a subsequent molding step, a flowable plastic material passes through the annulus and into the lower part of each quadrant in the mold, thereby forming a stud integral with the outsole. In this connection, there is no problem in that the annular body is located in direct contact with the underside of the outsole, that is, in the plane of the outsole. because,
Because the elasticity of the forerecord is essentially determined by the annular body, the annular body may be placed closer to the ground-engaging surface of the forerecord. What that means is that there is no strict need to maintain the outer diameter of the annular body precisely. The annular body is
In the recess of the forming tool it automatically assumes a position corresponding to its outer diameter, the four parts having a slightly conical overall shape.

(Example) Hereinafter, the present invention will be described in detail with reference to the drawings.

The sports boot or sports boot shown in FIG. 1 is, for example, a football boot, and has an upper part 1 and an outsole 2 connected to the upper part 1. It is made of a flexible, elastic material, such as polyamide or polyurethane, and has a relatively high resistance to abrasion due to abrasion.

A plurality of studs 3 are integrally formed on the outsole 2, as can be seen more clearly from FIG.

The outsole 2 has, for example, twenty such studs 3.

As can be seen from FIG. 2, the stud 3, which tapers downwards to form a conical shape, essentially has a lower chain part 4 and a lower chain part 4. It consists of a handle 5 connected to the outsole 2 and an annular body 6. This annular body 6 is made of an elastomer, such as polyurethane, which can be elastically deformed by pressure, and the height of the annular body 6 is about half the overall height of the stud 3. In the illustrated embodiment, the inner diameter of the annular body 6 is only half its outer diameter, so that the diameter of the connecting shank 5 also corresponds only to approximately half the transverse dimension of the stud 3. be. As can be seen from FIG.
is not located within the surface of, but is located slightly below.

Such positioning creates on the outsole 2 a somewhat downwardly projecting base 7 which, via the shape of the rounded edge, blends into the downwardly facing surface of the outsole 2. There is.

The inner edge of the annular body 6 is well rounded (see FIG. 2).

In the illustrated embodiment, the connecting handle 5 is arranged concentrically with respect to the stud 3, which has a straight truncated conical shape. However, it is also possible to adopt a somewhat eccentric construction thereof, so that said stud 3 has the property of bending on one side when it comes into contact with the ground.

When manufacturing the outsole 2, the annular body 6 manufactured in advance
is mounted within a mold recess in a mold (not shown). Then, after the forming tool is closed, a flowable plastic material is injected into the mold to produce the outsole 2. In that state, the opening in said annular body 6 serves as a passageway for the plastic material forming the lower part 4 of the stud 3 to flow, said lower part 4 thus making the outsole 2 more durable. Formed from an abradable material. In that condition, each toroid 6 is somewhat compressed by the pressure used during the injection molding operation, so that the material of the toroid 6 and the material of the outsole 2 are bonded or welded between them. Even when no bond is formed, the upper and lower sides of each annular body 6 are
This ensures proper contact with the joining surface of the stud 3. As a modification of the manufacturing method described above, each of the annular bodies can be molded in situ. The technique requires the use of a displaceable punch member within the forming tool in a known manner.

The embodiment shown in FIG. 3 differs from the previously described embodiments only with respect to the shape of the connecting handle and the annular body, which has a correspondingly different shape. For that reason, except for those two parts, FIG. 3 uses the same reference numerals as FIG. 2. In the embodiment of FIG. 3, the connecting handle 5' is at 90° to the flat surface of said base 7 which rests on the upper and lower sides of the annular body 6', respectively, and to the lower part 4 of said stud. It extends from different angles.

The angle adopted in the illustrated embodiment is approximately 45''. The holes in said annular body 6' are arranged at a corresponding slope with respect to the upper and lower sides of said annular body 6'. By arranging the connecting handle 5' in such an inclined state, a load concentric with the axis of the straight truncated conical stud 3' is applied to the connecting handle 5'. Due to the compressive deformation capacity of the annular body 6', the stud performs a bending action even when applied to the lower part 4 of the stud.
movement relative to the outsole 2.

This embodiment is therefore suitable for cases in which the material of the outsole has a very high resistance to deformation and, in particular, an exclusively bendable elasticity, but which can hardly be deformed by compressive forces. Particularly suitable for The effect of the inclined position of the connecting handle 5' is that the stud 3' has a strong tendency to deflect in one direction. In order to prevent the entire shoe or boot from deflecting, in that case it is desirable that the direction of the connecting handle 5' be different for each stud 3' on the outsole, so that all the studs 3' ′ is compensated for in the lateral deflection movement.

In the illustrated embodiment, the annular body 6 is shown in the form of a disc with parallel planes. However, it may also adopt another shape, for example, its upper and lower sides may have a concave container shape or a conical surface. As a result, the annular body 6 or 6' has a more pronounced elastic flexibility in its outer region. This is because the thickness at that position is greater.

It is also in principle possible, in particular in the embodiment shown in FIG. possible. In the case of the embodiment shown in FIG. 3, such a structure may comprise two connecting handles 5', the two connecting handles 5' intersecting each other;
That is, they may extend in opposite angular directions.

Due to the desired elastic flexibility of the stud, variations can also be made to the elastic annular body with regard to its height or thickness. For example, if it is desired to reduce the elastic flexibility of the stud, the thickness of the annular body 6 can be reduced to only one third or four of the height of the stud.
It is advantageous to reduce it by a factor of 1. This thickness differs from the thickness of the annulus adopted in the illustrated embodiment, which corresponds to approximately half the height of the stud. In addition, in the case of the embodiment shown in FIG. 3, the inner edge of the annular body 6', which is shown in the form of a sharp edge in the same figure, is rounded as in the embodiment shown in FIG. This also makes it possible to eliminate its sharp shape and thereby avoid stress concentration on the corresponding sharp edges of said connecting handle 5'.

Furthermore, in the embodiment shown in FIG. 2, its rounded form can even correspond to an arc with a radius corresponding to half the height of the annular body 6, insofar as it differs from the shown form. It is.

In many cases, it is desirable to provide the underside of uniformly studded shoes or boots with reinforcing ribs, which prevent the sole from becoming excessively thick at the location of these reinforcing ribs. In order to avoid this, insert parts made of a harder material are formed, which are embedded entirely or on their upper side into the material of the sole. Such inserts are often purely a matter of taste and fashion and are constructed to improve the appearance of the sole by making it different in color from the material of the sole. It is something that Similar to the approach described above in connection with the resilient annular body, such an insert part is first installed in a forming tool during the molding of the sole of the shoe or boot, and then The material is
molded around their insert parts. In such cases, and when reinforcing ribs are intentionally provided, the studs will sit on the insert portion;
In that case, said base 7 can be seen in the illustrated embodiment.
is formed by such an insert part, and during the manufacture of the sole, the annular body and the insert part must be placed in the appropriate position within the forming tool. It turns out.

[Brief explanation of the drawing]

FIG. 1 is a side view of a studded football boot according to the invention. FIG. 2 is an enlarged sectional view taken along the line ■-■ in FIG. 1. FIG. 3 is a sectional view similar to FIG. 2 showing a modified embodiment of the stud. 2... Outsole 3... Stud 4... Lower part
5... Handle 6... Annular body

Claims (5)

[Claims] (1) An outsole made of a material with elastic flexibility, and a plurality of rivets protruding from the stepping side of the outsole, each of which has a lower part having a ground-engaging surface, and a lower part of the outsole. a handle connected to the stepping side and having a transverse dimension; and an annular body having a predetermined outer diameter, the annular body being elastically deformable by pressure, and connecting the stepping side and the pushing side. The handle is interposed between a lower part, the handle passes through the annular body, the lower part and the handle are integrally formed with the outsole, and the handle in the annular body has a transverse dimension of: Sports shoes characterized in that the diameter is a fraction less than half of the outer diameter of the annular body. (2) The sports shoe according to claim 1, characterized in that the material of the outsole and the material of the annular body can be connected to each other by welding. (3) The sports shoe according to claim 1, wherein the handle portion is arranged coaxially with the stud. (4) The sports shoe according to claim 1, wherein the handle portion extends in an inclined manner with respect to the stud. (5) The handle portion between the stepping side and the annular body,
Sports shoe according to claim 1 or 3, characterized in that it is enlarged to form the upper part of the stud.