EP1581069B1 - Item of sports footwear - Google Patents

Description

The invention relates to a sports shoe, such as ski boot, cross country boot, hiking shoe od. Like., Which is assembled from several individual parts and a shaft, a tip or front and a heel or rear cap and a sole member having a wedge with having preformed footbed, wherein the items are interconnected, preferably glued, are.

Conventional shoes are constructed so that the upper, e.g. Leather or other material is tweaked over a last, whereupon a more or less flat sole is glued. In this case, an insole must be placed in the shoe to realize the natural foot shape in its three-dimensionality. The shoe upper is usually stamped from sheet material, which is brought by appropriate dart, but mainly by a forming process during the Zwickvorgang in the three-dimensional shape of the last. It works with more or less force. Due to the resilience of shank and lining materials, the final internal volume of the shoe is difficult to control, as the material may shrink if the shank fits too close to the groin or the volume may be too wide in case the shank does not overly strong Strips are tweaked. Different volumes between left and right shoe and from pair to pair are not uncommon.

From the GB 2 125 272 A is known a sports shoe, which has a sole part with an anatomically preformed footbed. However, this shoe is also in the forefoot and heel area of conventional sheet material, in which the above-mentioned disadvantages may occur.

Constructions are also known in which textile insoles are sewn to the shaft (Strobl-style). As a result, a certain three-dimensionality of the heel (ball heel) and the joint can be achieved. Such insoles are usually soft and cuddly and therefore lack sufficient torsional rigidity.

There are also combinations in which the forefoot is slipped and the rear shoe part is provided with a hard, flat semi-insole.

The heel height is appropriate for all constructions in the form of an intermediate or outsole outside the insole.

If an anatomically shaped footbed is desired, this is usually inserted later in the shoe in the form of a more or less shaped insole. The anatomical value of such insoles can be disputed, as they often for reasons of price made of unstable materials, such as. EVA, are made.

Object of the present invention is to provide a shoe of the type mentioned above while avoiding the stated disadvantages of the known shoes, in which an anatomically shaped shape is achieved.

This object is achieved in that the tip or front and the heel and rear cap are each formed as a three-dimensional preformed plastic injection molded part, wherein the wedge of the sole part is connected to an at least provided in the forefoot area insole and the rear cap with the wedge and the toe cap is connected to the insole.

The shoe construction thus has three parts, namely a front cap, a rear cap and a wedge, with an insole, which parts are adapted to a last and are mutually connected preferably by gluing. This shoe construction has the advantage that a conversion of shoe parts from a two-dimensional to a three-dimensional shape, as was previously the case, is no longer required, so that a force or distortion is no longer necessary. Of course, instead of gluing, especially if no waterproof shoe is required, any seam can be used.

Advantageous developments emerge from the measures according to claims 2 to 11. The object underlying the invention is also achieved by a sports shoe having the features of the characterizing part of claim 12.

Further features of the invention will be explained in more detail with reference to the drawings, in which embodiments of the invention Shoe construction are shown in simplified form.

• Fig. 1 eine Ausführungsform des Schuhes im Längsschnitt;
• Fig. 2 einen Querschnitt des Schuhes im Fersenbereich;
• Fig. 2A eine Variante der Ausführungsform nach Fig. 2;
• Fig. 3 eine weitere Variante;
• Fig. 4 einen Querschnitt des erfindungsgemäßen Schuhes im Zehenbereich, wobei der Einfachheit halber der Außenschaft und die Außensohle weggelassen worden sind;
• Fig. 4A eine Variante der Ausführungsform nach Fig. 4;
• Fig. 5 eine Variante der Ausführungsform nach Fig. 1;
• Fig. 6 einen Querschnitt des Schuhes nach Fig. 5 im Fersenbereich; und
• Fig. 7 eine weitere Variante der Ausführungsform des Schuhes nach Fig. 1.

Show it:

• Fig. 1 an embodiment of the shoe in longitudinal section;
• Fig. 2 a cross section of the shoe in the heel area;
• Fig. 2A a variant of the embodiment according to Fig. 2 ;
• Fig. 3 another variant;
• Fig. 4 a cross section of the shoe according to the invention in the toe area, with the outer shaft and the outsole have been omitted for the sake of simplicity;
• Fig. 4A a variant of the embodiment according to Fig. 4 ;
• Fig. 5 a variant of the embodiment according to Fig. 1 ;
• Fig. 6 a cross section of the shoe after Fig. 5 in the heel area; and
• Fig. 7 a further variant of the embodiment of the shoe after Fig. 1 ,

In Fig. 1 1 denotes a last and 2 a wedge, which is anatomically shaped and located in the heel area. The wedge 2 replaces an insole and extends to the bale. In the wedge 2, the heel is integrated, the height of which corresponds to the usual shoes and ensures the necessary torsional rigidity. To obtain a general stability of the shoe, such wedges may preferably be molded or molded from hard foam or similar materials. The upper contour corresponds to the anatomical shape of the foot and is equipped for this purpose with a heel bed and a longitudinal arch. This creates a relatively high edge on the side. The bottom surface of the wedge 2 may be flat or contoured. The lateral edge forms a relatively smooth surface which has an edge at the transition to the bottom surface. It is also possible to incorporate in the side surface a step as a positioning edge for a shaft 5, which may consist of a sheet material and in the heel area to the bale, ie in the area where it is not sewn or glued with an insole, with the side surface of the wedge 2 is glued. As a result, the usual Zwickvorgang is replaced.

The top part of the shoe construction is formed by a front cap 4 and the heel part by a rear cap 6, which caps are three-dimensionally shaped, for example injection-molded and connected to the shaft 5 along the surfaces 7 and 8, respectively, preferably glued, are.

Since both the wedge 2 and the front and rear cap 4 and 6 are made of molded parts, these parts fit together exactly and eliminate any deformation.

In the forefoot area, the wedge 2 is connected to the toe cap 4 by an insole 3, which is connected either by a stitching seam 9 or by gluing or the like.

The volume of the shoe is precisely specified and controllable.

As outsole serves a shell sole, not shown, which constructed just after the preformed parts, glued in the forefoot with the sewn or bonded insole 3 and the shaft 5, in the rear area with the underside of the wedge 2 and on the sides with the shaft 5 is ,

This construction allows for the rational production of shoes without the use of expensive machines and difficult, difficult to control operations. The internal volume is faithful and exactly controllable, whereby an anatomical surface is guaranteed. The flex zone can be optimally positioned and the torsional stiffness can be precisely defined and controlled by the combination of a stripped or pinched forefoot and wedge in the joint and heel area.

In the construction according to the invention it is ensured that the fit always corresponds exactly to the volume of the last and assembly errors are reduced to a minimum, whereby no differences in fit between left and right shoe or from pair to pair occur.

The inventive design a high torsional stiffness of the shoe can be achieved. In addition, the flexibility of the shoe in the ball area is controllable.

Of course, various structural configurations can be chosen within the scope of the invention.

So shows Fig. 2 an embodiment with an outer shaft 19 and an outsole 10, wherein the heel height of the wedge 2 is adapted to the anatomical shape of the Fußferse and has a height H. In this embodiment, the wedge bottom 2 'is contoured, and the outsole 10 bonded to the outer shaft 19 of the rear cap 6 and the wedge 2. In contrast, in the embodiment according to Fig. 2A the outsole 10, which is provided with a Ausgitterung 11, with the outer shaft 19 by a Seam 12 connected. The connection through a seam is preferably provided on both sides of the shoe.

In the embodiment according to Fig. 3 the wedge 2 is provided with a recessed heel 11 for lateral positioning of the shaft 5.

The Fig. 4 shows an embodiment in which the toe cap 4 with the shaft 5 and the insole 3 by an overlapped paragraph 7 'and 3' is glued.

In the embodiment according to Fig. 4A the toe cap 4 is only glued to the shaft 5 by an overlapped shoulder 7, while the connection with the insole 3 is effected by a Strobelnaht 9.

The Fig. 5 and 6 show a variant with the wedge 2 inside applied rear cap 6 and a front cap 4. In this variant, all of the wedge 2 adjacent parts, in the present case, the insole 3 and the rear cap 6, not connected from the outside or below, but the strip side. This measure ensures the same technical function, a weight savings and improved assembly options.

For improved flex, the insole 3 on the underside is additionally grooved transversely to the longitudinal axis of the foot.

The embodiment according to Fig. 7 shows a continuous, patched on the wedge 2 insole. 3

In this variant, the wedge 2 and the insole 3 are not vertically, but horizontally separated. The advantage of this construction lies in the patency of the insole 3. The function of the footbed and forefoot flex is thus with only one part, the insole 3, controllable. The wedge 2 assumes the function of high torsional stiffness.

Claims (12)

1. Sports footwear such as, e.g., a ski boot, cross-country ski boot, hiking boot or the like, which is assembled of several components and comprises an upper, a tip or front cap and a heel or rear cap as well as a sole part, said sole part comprising a wedge (2) with a preformed foot bed, with said components being connected to each other, preferably glued together, characterized in that said tip or front cap and said heel or rear cap (4 and 6, respectively) are each designed as a three-dimensional, preformed, injection-molded plastic part, with said wedge (2) of said sole part being connected to an insole (3) provided at least in the forefoot region, and with said rear cap (6) being connected to said wedge (2) and said front cap (4) being connected to said insole (3).
2. Sports footwear according to at least one of the preceding claims, characterized in that said insole (3) is sewn in in the forefoot region.
3. Sports footwear according to claim 2, characterized in that said insole (3) is connected to said front cap (4) by a Strobel seam (9) or by gluing or the like.
4. Sports footwear according to at least one of the preceding claims, characterized in that said wedge (2) is equipped with a heel bedding and a longitudinal arch.
5. Sports footwear according to claim 1, characterized in that said wedge (2) is equipped with a heel-forming elevation.
6. Sports footwear according to at least one of the preceding claims, characterized in that the upper rim of said heel cap (6) is stepped, with said stepped parts overlapping each other and being connected to each other.
7. Sports footwear according to any one of claims 3 to 6, characterized in that said front cap (4) is connected to said upper (5) on the one hand and to said insole (3) on the other hand, each by a stepped gluing connection (7' and 3', respectively).
8. Sports footwear according to at least one of the preceding claims, characterized in that said wedge (2) is provided with a lateral shoulder (11) for positioning said upper (5).
9. Sports footwear according to at least one of the preceding claims, characterized in that it comprises an outsole (10), which is optionally provided with a grating (11), said outsole being drawn upwards on the sides and preferably embracing said heel portion (6) of said upper (5), and being connected to the external upper (19) along an internal site of overlapping by a seam (12) or by gluing.
10. Sports footwear according to any one of claims 2 to 9, characterized in that all parts attached to said wedge (2), such as said insole (3) and said rear cap (4), are connected to the side of the last.
11. Sports footwear such as, e.g., a ski boot, cross-country ski boot, hiking boot or the like, which is assembled of several components and comprises an upper, a tip or front cap and a heel or rear cap as well as a sole part, said sole part comprising a wedge (2) with a preformed foot bed, with said components being connected to each other, preferably glued together, characterized in that said tip or front cap and said heel or rear cap (4 and 6, respectively) are each designed as a three-dimensional, preformed, injection-molded plastic part, and said wedge (2) of said sole part and an insole (3) are horizontally separated, and said tip-to-end insole (3) is located on top of said wedge (2), with said rear cap (6) and said front cap (4) being connected to said insole (3).
12. Sports footwear according to claim 11, characterized in that said sports footwear comprises the features of claims 3, 4, 5, 6, or 7.

Images