EP1752056A1 - Spur with protective layer - Google Patents

Abstract

A U-shaped frame part (22) has two side parts, which each have a side limb and an area (32) for lugs. Side limbs have an outer surface and an inner surface and are connected to a protective layer (26). The inner surface is covered with the protective layer.

Description

The invention relates to a Sporenbügel having a U-shaped bracket member, a spurs and a protective layer, wherein the strap member has two side parts, each having a lateral leg and an eye portion and wherein the lateral legs each have an outer surface and an inner surface and are connected to the protective layer, wherein the inner surface is covered with the protective layer.

The temple part and the spurs are usually made of metal, the protective layer is usually made of a plastic or rubber. A Sporenbügel of the type mentioned is, for example, under the item no. 404 01 000 from the company Horse & Moore, Christoph Augsten & Harald Schmidt GbR, Simmershäuser Str. 15a, 34246 Vellmar (Germany) offered. The protective layer surrounds the side legs, similar to a tube, so that only the eyelet areas and the spurs are not encased. The protective layer avoids that the metallic side legs lie directly on a riding boot and can affect it in any way.

The disadvantage is the visual impression. The material stainless steel of the bracket part has a nice surface, but this is essentially covered, except for the two eyelet areas. At the transition between the ends of the tubular protective layer and the eyelet areas is a step that makes no real sense. The protective layer leaves the eyelet areas generous free, there is no possibility in the granted construction, the protective layer, if only partially, to pull into the Ösenbereiche. It also disturbs the material mix between a normally black colored protective layer and the noble surface of the stainless steel parts. The eyelet area is also referred to as a loop part.

This is where the invention begins. It has made it its mission to further develop the Sporenbügel of the type mentioned in that the protective layer largely recedes and is essentially present only where it is really needed, the Sporenbügel should be lighter and less thick.

This object is achieved on the basis of the Sporenbügel of the type mentioned by the features of claim 1.

In this Sporenbügel the protective layer is reduced compared to the previously known Sporenbügel. At least a part of the outer surface is freely visible, so that there the surface of the metallic side leg, which is in particular a stainless steel surface, is visible. This also makes the spur bar lighter. In addition, he has a smaller thickness of the lateral legs, these are now less forward to the outside.

From the US 6,192,663 B1 is known a Sporenbügel whose lateral legs have on their inner surface a circumferential lip. This lip is made of a rubber and removably engages in the gap between the shoe sole and shoe side, thereby fixing the spur stirrup in its position. However, the lip does not avoid the direct contact between the metallic strap part and the riding boot.

Preferably, the part of the protective layer which surrounds the outer surface is completely dispensed with. This makes the spur bar even lighter and also has a lower overall thickness. The outer surface is then completely visible, it is not affected by the protective layer in any way. The protective layer is only where it is actually needed, namely between the metal of the temple part and the riding boot. From the outside, the protective layer is not recognizable.

Overall, the invention pursues the purpose of making the spurs easier, to make it less thick, furthermore, the spurs is visually appealing. Especially dressage riders prefer a spur strap which, although it has the advantages of a protective layer, conceals this protective layer in such a way that it can not be seen from the outside. The invention makes it possible to cover the inner surfaces with the protective layer, this also includes the inner surfaces of the eyelet areas.

In an embodiment in which the outer surface of the lateral limbs are still partially covered with the protective layer, there is the advantage that there is still a tubular encircling the protective layer around the lateral limbs, so that the maintenance of the protective layer is ensured. In an embodiment in which the outer surface is completely free of the protective layer, it is ensured that the protective layer is intimately connected to the metallic material of the lateral limbs. This is achieved by appropriate measures, namely gluing, vulcanization and / or molding. Other methods which ensure a secure hold between a preferably thin protective layer and the inner surface are also possible.

Preferably, the outer surface of the lateral leg is less than 50%, in particular not provided with a protective layer at all. This leads to a lightweight training and a good look. Preferably, the respective edges of the protective layer are designed so that they are always thinner to the edge, so that a step-free transition is achieved in the surface of the bracket part. This can also take place at the end regions of the protective layer which are adjacent to the eyelet region. There the Sporenbügel has a stage in the protective layer according to the prior art. This level can be avoided by continuously thinning the material thickness to the edge.

If the protective layer is intimately connected to the metallic material of the bracket part, there is the possibility of including also parts of the inner surface of the eye areas in the protective layer. This can be achieved that any contact between the material of the bracket part and a Riding boots is avoided. In addition, a specifically adjustable increase in the friction between an eyelet and the eyelet area is obtained, whereby a displacement of the Ösenriemens is difficult.

To improve the adhesion of the protective layer to the inner surfaces, it is proposed that the lateral limbs have at least one bore which extends from the inner surface and which is either a through-bore or a blind bore. This hole improves the grip of the protective layer. The same can be achieved in that each lateral leg has a recess, in particular a bead, which is formed on the inner surface and which receives a portion of the protective layer, so that it may even be positively connected to the strap member. In particular, however, one obtains an intimate hold of the protective layer on the inner surface when the protective layer is vulcanized. For this one can use common methods that are known for metal-rubber compounds.

Fig. 1:

Eine Seitenansicht eines Sporenbügels, der an einem Reitstiefel, welcher teilweise dargestellt ist, angeordnet ist und dem ein Riemen zugeordnet ist,

Fig. 2:

eine perspektivische Darstellung eines Sporenbügels in einer Ausbildung ähnlich Figur 1,

Fig. 3:

eine Draufsicht auf den Sporenbügel gemäß Figur 2, die Schutzschicht ist teilweise weggeschnitten im Bereich X,

Fig. 4:

eine Draufsicht auf ein drittes Ausführungsbeispiel des Sporenbügels,

Fig. 5:

ein Schnittbild entlang V-V in Figur 4,

Fig. 6:

als Schnittbild eine prinzipielle Darstellung einer Form für die Herstellung des Sporenbügels nach Figur 4, konkret zur Herstellung des Bereichs, der dem Schnittbild gemäß Figur 5 entspricht,

Fig. 7:

eine Innenansicht eines vierten Ausführungsbeispiels, dieses ist nur teilweise dargestellt,

Fig. 8:

ein Schnittbild ähnlich Figur 5 für ein fünftes Ausführungsbeispiel,

Fig. 9:

ein Schnittbild ähnlich Figur 5 für ein sechstes Ausführungsbeispiel,

Fig. 10:

ein Schnitt ähnlich Figur 5 für ein siebtes Ausführungsbeispiel und

Fig. 11:

eine schnittbildliche Darstellung eines Zwischenzustandes bei Herstellung eines achten Ausführungsbeispiels.

Further advantages and features of the invention will become apparent from the other claims and the following description of non-limiting embodiments of the invention, which are explained in more detail with reference to the drawings below. In this drawing show:

Fig. 1:

A side view of a spine strap, which is arranged on a riding boot, which is partially shown, and which is associated with a belt,

Fig. 2:

3 is a perspective view of a spur strap in a configuration similar to FIG. 1;

3:

a top view of the spur stirrup according to FIG. 2, the protective layer is partially cut away in the region X,

4:

a plan view of a third embodiment of the spine strap,

Fig. 5:

a sectional view along VV in Figure 4,

Fig. 6:

4 is a sectional view of a basic representation of a mold for the production of the spine strap according to FIG. 4, specifically for the production of the region corresponding to the sectional view according to FIG. 5,

Fig. 7:

an interior view of a fourth embodiment, this is shown only partially,

Fig. 8:

a sectional view similar to Figure 5 for a fifth embodiment,

Fig. 9:

a sectional view similar to Figure 5 for a sixth embodiment,

Fig. 10:

a section similar to Figure 5 for a seventh embodiment and

Fig. 11:

a sectional representation of an intermediate state in producing an eighth embodiment.

To a commercial riding boot 20, the upper shaft portion is not shown in Figure 1, a spur strap is attached, it is held by a belt 18. It can be seen that the spur bar 16 surrounds the heel area of the riding boot 20 at the rear in a U-shape and is located above the sole of the riding boot 20; it has a distance of more than one centimeter from this sole.

The Sporenbügel has a U-shaped bracket member 20 and a spur 24, which is optionally interchangeable connected with this bracket member 20. Finally, the spur bar 16 has a protective layer 26, which is also connected to the bracket part 22. In the specific case of the embodiment of Figure 1 and the second embodiment of Figures 2 and 3, the protective layer is tubular, it is not adherent to the strap member 22, but holds positively on this.

The bracket member 22 has two side parts 28, which are preferably identical. This side part 28 has in each case a lateral leg 30 and an eyelet region 32, which is located at the free end of the lateral leg 30. The lateral legs 30 are integrally connected to one another in the region of the spore 24. Preferably, the bracket member 22 is made of a flat blank made of stainless steel, this is for example on the EP 1 094 730 B1 refer to the applicant, the bracket member 22 may also be cast. The spore 24 may be integral with the strap member 22.

The lateral legs 30 each have an outer surface 34 and an inner surface 36. The inner surface 36 faces the riding boot 20. The outer surface faces outward and is visible from the outside. As can be seen from all the figures, the protective layer 26 is located on the inner surface 36 in any case. It prevents the normally metallic strap part 22 from making direct contact with the riding boot 20 and possibly scratching it or even impairing it. In most of the embodiments shown, as in Figures 1 to 3, the protective layer 26 does not extend into the eyelet region 32, as will be explained later, but it also allows the invention there to provide the protective layer, this is already pointed out in anticipation of the figure 7.

Not for the protection of the riding boot 20 is required that the protective layer 26 is also located on the outer surface 34. As far as the protective layer 26 is on the outer surface 34, it covers there the metallic material of the bracket member 22, means a certain weight and also has a certain thickness. To counteract this, in the two exemplary embodiments according to FIGS. 1 to 3, the protective layer 26 is designed as a tube which completely covers the inner surface but does not completely cover the outer surface 34 of the lateral legs 30. There are windows 38 released there, through which the surface of the bracket member 22 is visible. Due to the tubular formation, the protective layer 26 is positively connected in the first two embodiments with the bracket member 22, without entering into any composite with this directly or have to have a liability. By the tubular Umgriff the protective layer is captively connected to the bracket member 22.

As can be seen, in all embodiments of the spores 24 is free of a protective layer 26. Although he can in principle be moved with such a, but it is advantageous to release him.

Specifically, the first two embodiments are made as follows:

First, a Sporenbügel is made, as for example from the mentioned EP 1 094 730 B1 is known. This Sporenbügel 16 is placed in a mold which is similar to the shape to be discussed according to Figure 6 constructed. It has a mold cavity which accommodates the spur stirrup and also has space for the protective layer. After deposits of the spine strap and closing deer shape, the injection of the material of the tubular protective layer takes place. A relatively soft, rubber-like plastic, in particular TPE, is used. He preferably has a hardness of about 70 Shore. The overmolding takes place at 150 to 180 ° C, black material is used. The edges of the windows 38 may leak soft, but they may also be substantially perpendicular to the surface of the bracket member 22. The same applies to the ends of the tubular protective layer in the vicinity of the eyelet regions 32.

In contrast to the embodiments discussed so far in all the following embodiments, any composite exists between the metallic material of the bracket member 22 and the protective layer 26. Thus, a positive fit around the cross section of the side legs 30 is no longer necessary and there is the advantage that not only a part of the outer surface 34, but the entire outer surface 34 of the protective layer 26 may remain free.

In the third exemplary embodiment according to FIGS. 4 to 6, a strip-shaped protective layer 26 is vulcanized onto most of the inner surface 36 of the two lateral legs 30. It can be seen in particular in Figure 5, the strip-shaped protective layer 26, the largest part, about 80 to 90%, the inner surface 36 covers. As in all other embodiments, the protective layer 26 is relatively thin, preferably has a material thickness of 1 to 2 mm, the material thickness can be in the range 0.5 to 3 mm. Larger and smaller material thicknesses are possible in principle.

The spur bar 16 according to the third embodiment is manufactured as follows:

First, a Sporenbügel is again produced, as he eg from the mentioned EP 1 094 730 B1 is known. At the points of the inner surface 36, which are to be provided later with the protective layer 26, the inner surface is now roughened, in particular sandblasted. These areas are then covered with chemosil or a suitable binder. Chemosil is offered for example by Henkel KGaA, Dusseldorf, Germany, see also www.chemosil.de. Chemosil is used for safe rubber-metal bonds. Because of their universal applicability, the chemosil binders are accepted by the rubber processing industry as standard products.

Specifically, two coats of Chemosil are applied successively, each waiting four hours for the coating to dry properly. Then, a previously cut rubber strip having substantially the shape of a very long rectangle is placed and all is inserted into the mold 40 as shown in FIG. At a pressure of about 30 bar (about 30 tons) and a temperature between about 140 and 160 ° C, the strip-shaped blank is connected to the metal of the bracket member 22. The blank may be made of natural rubber, other rubbery materials are possible, e.g. EPM, EPDM, MQ, TM etc. Scorching slightly reduces the thickness of the original rubber or natural rubber blank, typically decreasing by about 30 to 40%. Can be obtained about a mm thick layer about uniform thickness, as can be seen in particular in Figure 5.

From Figure 6 details of the shape can be seen. The mold consists of two half parts 42, 44, which are shown in Figure 6 in a separate state, they are brought together along the arrow and then define a mold cavity, which corresponds to the outer contours of the cross section according to FIG. Compressed air is supplied via a feed channel 46, a heater, not shown, brings the arrangement to the required temperature. In an alternative, it is also possible to inject an elastomeric plastic via the feed channel 46.

It is also possible to apply the protective layer 26 when the strap member 22 is in its extended form and not yet in the U-shaped form is bent. This will be explained on Figure 7, Figure 7 shows a portion of a bracket portion 22, which is in a fully extended, level position, that is not yet bent into the shape according to, for example, Figure 4. In this state, the protective layer 26 can now be applied, for example, as explained above for the third exemplary embodiment according to FIGS. 4 to 6. Subsequently, the bracket member 22 in the U-shaped form, as shown for example Figure 4, bent. Overall, this simplifies the formation of the mold 40 for scorching or in the first two embodiments for overmolding.

Figure 7 shows even more. The protective layer 26, which in turn is located only on the largest part of the inner surface 36, now also extends into the eyelet region 32. Specifically, it extends into the space between two eyelets 48. As can be seen from Figure 1, this gap is not in contact with the belt 18. In the embodiment of Figure 7, therefore, the belt 18 is not in contact with the protective layer 26. Die Protective layer 26 according to FIG. 7 reduces the possibility of contact between metal and riding boot 20.

In a modification, the protective layer 26 according to FIG. 7 may also extend into further regions which are located on the inside of the eyelet region 32. For example, the inner sides of the outer webs, which define and define the eyelets 34 to the outside, can be coated with the possibly thinner protective layer 26. These areas have direct contact with the belt 18 and cause greater friction than can be achieved with the metallic material of the webs. In this way, the seat of the belt 18 is improved, the belt 18 can not move so easily against the eyelet portion 32 so.

In the embodiment of Figure 8, the lateral leg 30 shown in section has a bead 49, which is obtained by a deformation process. Instead of the bead can also at least one local bore, which also starts from the inner surface 36 and is formed as a blind bore, can be used. The bead 49 preferably has an undercut. It is filled with the material of the protective layer 26, this adheres within the bead 49 or bore 50 and thus keeps better. In the exemplary embodiment according to FIG. 8, the protective layer 26 may otherwise be provided with the inner surface in any other way Be connected 36, for example by gluing, scorching or molding.

In the embodiment of Figure 9, a bore 50 is formed as a through hole. The protective layer 26 in turn extends through this bore 50 and also slightly, in the form of a pimple 52, on the outer surface 34. Otherwise, similar conditions exist as in FIG. 8.

In the embodiment according to FIG. 10, a support means 54 in the form of a metal net is connected to the inner surface 36, for example it is connected by spot welding. This support means 54 in the form of a thin metal mesh is then encapsulated and covered with a plastic layer which forms the protective layer 26. The support means 54 is completely enveloped and not visible from the outside. It is only there to enter into an intimate bond with the material of the protective layer 26, so that it is connected via the support means 54 fixed to the lateral leg 30.

Finally, FIG. 11 shows the steps of adhering a protective layer 26 to a lateral leg 30. For this purpose, a layer of adhesive 56 is applied to the inner surface 36. On this, the strip-shaped blank which is to form the protective layer 26 is now pressed and glued.

Claims (9)

Spur stirrup (16) having a U-shaped bracket portion (22), a spur (24) and a protective layer (26), the bracket portion (22) having two side portions (28) each having a lateral leg (30) and an eyelet region (32) and wherein the lateral legs (30) have an outer surface (34) and an inner surface (36) and are connected to the protective layer (26), wherein the inner surface (36) is covered with the protective layer (26) , characterized in that the protective layer (26) does not completely cover the outer surface (34) of the lateral legs (30), but at least partially releases it, so that the outer surface (34) of the lateral legs (30) at least partially covers the visible outer surface (34 ) of the bracket part (22). Spurs bracket (16) according to claim 1, characterized in that the outer surface (34) of the lateral limbs (30) less than 50%, preferably not at all provided with a protective layer (26). Spurs (16) according to claim 1, characterized in that the inner surface (36) of the lateral legs (30) to more than 50%, preferably about 80% of its entire surface with a protective layer (26) is provided. The spike bracket (16) according to claim 1, characterized in that the lateral legs (30) have at least one bore (50) extending from the inner surface (36) and extending either to the outer surface (34) or not to the outer surface (34 ), and that the protective layer (26) engages in this bore (50). Spurs bracket (16) according to claim 1, characterized in that the lateral limbs (30) have a recess, in particular a bead (49), which is formed on the inner surface (36), and that the protective layer (26) in this bead (49) intervenes. Spurs (16) according to claim 1, characterized in that the lateral legs (30) have at least one roughened area located inside the inner surface (36) and preferably obtained by sandblasting. Sporenbügel (16) according to claim 1, characterized in that only on the inner surface (36) a protective layer (26) is fixed, in particular by gluing, molding and / or vulcanization. Sporenbügel (16) according to claim 1, characterized in that on the inner surface (36) a support means (54), in particular a metallic mesh, is applied, which is fixedly connected to the inner surface (36), and that the support means (54). with the protective layer (26) is intimately connected, wherein it does not protrude beyond the surface of the protective layer (26). Sporenbügel (16) according to claim 1, characterized in that the protective layer (26), the lateral legs (30) wrapped around releasing windows (38).

Images