EP1487292B1 - Sole structure for a ski boot - Google Patents

Abstract

The invention relates to a sports shoe, especially a ski boot, which comprises a shoe shell (1) with a shoe shell sole (1') and an inner and an outer sole plate (3, 2). The shoe is specifically characterized in that both sole plates (2, 3) can be exchanged and can be interlinked.

Description

The invention relates to a ski boot, according to the preamble of claim 1, and has the goal of being able to use the shoe for different purposes.

Usually, a lower shell is made in a ski boot together with the sole plate by injection molding and provided with an inner shoe. In addition, an inner sole wedge is usually present, which comes to rest under the liner and is normally inserted, whereby a relatively loose connection between the sole part, the shell and the sole wedge is present.

In the current skiing, especially in elite sports, it is necessary, especially in the binding area, introduce in ski boots possible pressure-resistant elements to absorb the binding forces as possible without deformation of the ski and thereby avoid the deformation of the sole part of the ski boot as possible because of the Deformation forces of the material lost the ability to react when skiing. Disadvantage of the known construction was also that for different purposes e.g. for the slalom, the giant slalom and for downhill skiing various shoes were required.

DE 201 02 878 U discloses a skate having a shoe shell which is provided with a shell sole detachably connected to an outer and an inner soleplate, the inner soleplate being provided inside the shoe shell, and both soleplates having through holes and these passing connecting elements are provided. Although there is a constructive similarity between the known skate and the ski boot according to the invention, both sports shoes are so far apart from each other by the different purpose that a person skilled in the skating field in the development of a ski boot will not seek parallels with the roller skate. Not less than Ski boots for a different running technique, eg, alpine running, find application.

US 5 992 861 A discloses a ski boot with a shell sole, an outer soleplate and an inner soleplate. In contrast to the sole plate 3 according to the present patent application, this does not extend over the entire length of the shell sole 1 ', but as thin platelets only over a small part of the length of the shell sole 1'.

By WO 01/47387 A a shoe with a sole has become known, on which an outer sole can be placed over oblique fasteners. With this arrangement, the purpose underlying the present invention is not achievable.

By the US 5,918,386 A a snowboard shoe with a shoe sole has become known, which has a recess for sole inserts in the central region. Also this training of a ski boot pursues other purposes than the present invention.

Object of the present invention is to provide while avoiding the disadvantages of the mentioned known shoes a ski boot, which consists of several components in the sole region, which provide a connection-rigid composite for receiving the binding forces.

The measure according to the characterizing part of claim 1 enables the solution of the problem. Here are the terms inner and outer soleplate in their broadest meaning to understand. Thus, the inner sole plate can be addressed as a sole wedge, which extends over the entire shoe length from the top to the heel of the outer shoe shell or the outer surface of the sole of the inner shoe. The inner soleplate is replaceable, and the outer soleplate can be co-manufactured with the shoe shell by injection molding. The sole plate may positively and / or non-positively, for example by screwing, riveting or bonding, be connected to the bottom side of the shell. In this way, by appropriate selection of the sole plates under different materials, the characteristic of the ski boot can be changed, so that it is possible to produce a uniform ski boot shell, which gives different running characteristics and gait characteristics by simply attaching the inner or outer shoe shell. As sole plates, various materials, such as thermoplastic and fiber-reinforced materials, such as glass fiber or carbon fiber reinforced materials as well as classic composite materials and possibly also metals can be used.

According to a further feature of the invention, the inner sole plate is provided with projections which engage in corresponding openings of the sole of the shoe shell.

According to a further feature of the invention, both sole plates are provided with openings and these congruent connecting elements passing through.

According to a further feature of the invention, the inner and the outer sole plate is provided with interlocking connecting elements.

According to a further feature of the invention, one of the two sole plates is provided with openings in which engage projections of the other sole plate.

According to a further feature of the invention, four openings or projections arranged in the corners of a rectangle are provided in the heel and in the tip area, which engage in one another.

According to a further feature of the invention, a further opening or a further projection is provided in the tip region in the longitudinal center of the ski boot.

According to a further feature of the invention, the replaceable sole is in the tip and in the heel area with recesses and projections which are embedded in corresponding projections and recesses of the sole of the shell.

According to a further feature of the invention, the lower shell in the heel region has recesses into which engage the projections of the outer sole plate.

Further features of the invention will be explained in more detail with reference to the drawings, in which an embodiment of a ski boot according to the invention is shown.

Fig. 1

eine Seitenansicht;

Fig. 2

eine Druntersicht; und

Fig. 3

einen mittigen Längsschnitt des Skischuhes.

Show it:

Fig. 1

a side view;

Fig. 2

a bottom view; and

Fig. 3

a central longitudinal section of the ski boot.

In the drawing, 1 denotes the shoe shell, which may consist of plastic and is equipped with a shell sole 1 ', on which inside and outside each a sole plate 3 and 2 rests. The inner sole plate 3 is connected to the outer sole plate 2 by connecting elements 4, which od as screws, rivets. Like. May be formed and aligned openings 5 of the outer and inner sole plate 2 and 3 and the shell sole 1 'prevail. The perforations 5 'of the inner sole plate 3 are provided on the sole of the shoe with a round extension 3', which closes in a form-fitting manner with the outer side of the soleplate 1 'and rests on the inner side of the outer soleplate 2.

The inner sole plate 3 extends over the entire length of the sole plate 1 'substantially coincident with the outer sole plate 2, whose ends have edge-projecting profile parts 6, which engage in congruent recesses of the shell sole 1'. The outer sole plate 2 is flush with the shell sole 1 'and may at most run side recesses, which may be present at the side edges, if necessary.

Claims (5)

1. A ski boot comprising a boot shell, which boot shell is equipped with a shell sole releasably connected to an exchangeable outer and an inner sole plate, characterised in that the inner sole plate (3) is exchangeably provided in the interior of the boot shell, extends over the entire length of the shell sole (1'), and in that both sole plates (2 and 3) are provided with through-holes (5) and with connecting elements (4) passing through these through-holes.
2. A ski boot according to claim 1, characterised in that the openings (5) of the inner sole plate (3) are provided with projections (3') at their rim side, which projections engage in through-holes of the shell sole (1').
3. A ski boot according to at least one of the preceding claims, characterised in that the outer sole plate (2) comprises sections (6) projecting from the end-side thereof, which sections engage in corresponding recesses of the shell sole (1').
4. A ski boot according to at least one of the preceding claims, characterised in that the outer sole plate (2) extends from the tip region to the heel region of the sole (1).
5. A ski boot according to at least one of the preceding claims, characterised in that the sole plate (2) is thinned at both longitudinal sides in the middle region thereof and forms a longitudinal central web.

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