EP3143891B1 - Ski boot - Google Patents

Description

The invention relates to a ski boot, in particular alpine ski boot, with an inner boot of a flexible shaft material and a shell surrounding the inner shoe at least partially, which has a lower shell part at least partially enclosing in the use position and an upper shell part hingedly connected to the lower shell part the lower shell part has a manhole opening extending essentially in the direction of a longitudinal axis, which in the closed state is closed by overlapping edge portions of the lower shell part.

From the prior art, a variety of different shell ski boots is known in which a comparatively flexible liner in a shell consisting of a comparatively hard plastic material is added.

A ski boot of the type mentioned is from the EP 1 319 346 A1 known.

In most cases, in conventional alpine booties, the lower shell part is divided substantially in the direction of the longitudinal axis of the shoe to form an access opening in the instep area, wherein lateral and medial portions of the lower shell part are arranged overlapping in the instep area. Usually, both in the instep area and in the upper shell part, which surrounds the lower leg or the tibia of the user, buckles are provided, which make it possible to change the space enclosed by the shell in order to provide the user with an individual adaptation of the ski boot to the foot or foot To allow lower leg and tibia. From the DE 197 10 702 A1 is a lace-up shoe, such as a roller skate, a cross-country boot or a hiking boot, known, in which in the instep area a rope-shaped traction means is provided, which is guided by means of deflection crosses. This traction device is tensioned by a manually applied clamping force and then fixed by means of a clamping device. The application of such traction means is limited to shoes, in which a lower shell or shaft part is recessed in the instep area.

Likewise is from the US 5,687,460 A a hiking boot with an open shaft area in the instep area, which is conventionally covered by a tongue. Again, a rope-shaped traction means is provided in the instep area, which is performed by means of deflection crosses, and which is stretched by hand.

From the DE 10 2013 112 017 A1 is a ski boot is known in which in the instep area a meandering traction rope is provided, the clamping force is adjustable by means of a fastening means and an adjustable deflecting point. However, this meandering course of the pull rope has proven to be disadvantageous, since in particular the middle guide element must still be designed as a pivotally mounted buckle, which is arranged in the closed position overlapping the overlap region. Accordingly, with such a course of the pull rope after the entry into the shoe, it is first necessary to close the buckle leading the pull rope, and only then can the pull rope be stretched over a tensioning device until the buckle tightly encloses the foot of the user.

From the DE 14 85 819 A1 Furthermore, a leather ski boot with a crossed lace is known. To apply an increased clamping force clamping lever are provided in this shoe. From the EP 2 881 004 A1 Furthermore, a different touring ski boot is known, in which in an instep area of the lower shell part is recessed to form a manhole. In this instep area, a pull rope is provided for tightening the shoe, which can be tightened by means of a closure element, in particular in the form of a rotary closure.

In this touring ski boot, the pull rope is over long distances on the manhole, which is defined by the recessed area in the shell, out and the pull rope is crossed in this area, so this can disadvantageously occur in this open area at the user unpleasant pressure points. In addition, to prevent the entry of snow or water into the interior of the shell via the access opening, the recessed area of the shell is completely covered by a shell Protective tongue covered.

From the entry of Louie Dawson regarding "Scarpa Freedom SL First Look - The Backcountry Ski Touring Blog" on the website https://www.wildsnow.com/11320/scarpa-freedom-ski-boot-review/ is a presentation of the ski boot Tecnica Cochise 130 Pro known.

From another entry by Lou Dawson at https://ww-w.wildsnow.com/15504/atomic-backland-ski-touring-boot/ regarding "Atomic Backland Boot - Wow, Finally Some New TOURING Gear - THE Backcountry Ski Touring Blog "is another ski boot, in which an intersecting leadership of a traction device is provided on wheels, known. A ski boot with buckles is also shown at http://blistergearreview.com/gearreviews/2014-2015-tecnica-cochise-130-pro.

The EP 0 894 444 A2 also shows a ski boot in which buckles are provided. At https://www.youtube.com/watch? v = X8QV67Pd5h4 the model F1 EVO by the company Scarpa is shown, in which in the instep area a screw cap is provided for tightening the shoe.

Out US 5,687,460 In addition, a shoe is known in which a shoe band is guided between deflecting means. The shoe also has a buckle.

The aim of the present invention is therefore to provide a ski boot of the initially mentioned type, in which an individual, fine-scale adaptation of the lower shell or the trapped volume of the shell is possible in a simple manner, while ensuring that the shell fits tightly to the foot of the user under the tension in the instep area.

This is achieved by the features of the characterizing part of claim 1 according to the invention. Accordingly, the invention provides that the manhole in the closed state of overlapping arranged edge portions of the lower shell part is closed, wherein in the instep a rope-shaped traction means is provided, which is guided by means of deflection crosses, wherein the traction means a rotary or ratchet fastener is assigned as a clamping element for introducing a clamping force, which clamping element is arranged laterally in an upper end portion of the instep area wherein the upper shell part has at least one buckle.

Thus, as with conventional buckles, sufficient pulling force can be applied to the lower shell part by means of the traction means crossed over in the instep area, so that by means of an extremely user-friendly, simple operation of the tensioning device the extent to which the edge portions of the lower shell part which surrounds the Define access opening, are arranged overlapping, can be adjusted. The operation of other buckles or the like for fixing the force acting on the lower shell part clamping force is advantageously not required. There is no danger of pressure points in the instep area which are unpleasant for the user due to the traction means guided in an intersecting manner, since the overlapping edge portions of the lower shell part are arranged between the traction means and the foot of the user. Thus, a substantially stepless adjustment of the tensile force acting from the traction means can be achieved, and thus advantageously - compared to conventional buckles - a significantly finer graduated change in the trapped volume of the shell can be achieved. Thus, the ease of use of ski boots is significantly improved with overlapping arranged in the instep area edge portions.

In order to minimize frictional resistance in the intersecting guidance of the rope-shaped traction means in the instep area, it is favorable if at least partially, preferably exclusively, rotatably mounted rollers are provided as deflecting means. Due to the thus extremely low frictional resistance results for the user a particularly smooth way of tightening the rope-shaped traction device.

With regard to a structurally simple storage of the rollers, it is advantageous if the rollers are each rotatably mounted on an axis of rotation, wherein the axis of rotation is preferably pivotally mounted. By the preferably pivotable mounting of the axes of rotation thus an optimal adjustment of the orientation of the rollers to the course of the rope-shaped traction means can be achieved and thus any frictional losses are further reduced.

In order to enable individual adaptation of the individual deflection points to the foot, it is furthermore advantageous if the axes of rotation are respectively received in a bearing block having two retaining fingers.

If the bearing blocks in the higher flexibility portion of the lower shell part, preferably each via a pin-shaped connecting element, in particular a rivet or screw, are fixed, the bearings of the deflection can also better adapt to the individual foot shape of the user, so that the fit is further improved , With regard to a high ease of use when tightening or applying a clamping force on the rope-shaped traction means is provided according to the invention that a rotary or ratchet fastener is provided as a clamping element. Such screw caps are known in particular by the company Boa Technology Inc. for many years. Such closures are for example in the patent application US 5,934,599 A , the US 6,202,953 B and numerous other applications of Boa Technology Inc. in detail. By contrast, ratchet fasteners are available, for example, from AM Teknostampi SpA or GI.DI. Meccanica SpA known.

• Fig. 1 eine perspektivische Ansicht des erfindungsgemäßen Skischuhs;
• Fig. 2 eine Ansicht von Vorne auf den erfindungsgemäßen Skischuh;
• Fig. 3 eine Seitenansicht auf eine mediale Seite des erfindungsgemäßen Skischuhs;

The invention will be explained in more detail below with reference to a preferred embodiment shown in the drawings, wherein it should in no way be limited thereto. In detail in the drawings:

• Fig. 1 a perspective view of the ski boot according to the invention;
• Fig. 2 a view from the front of the ski boot according to the invention;
• Fig. 3 a side view of a medial side of the ski boot according to the invention;

In Fig. 1 is a ski boot 1, in particular an alpine ski boot with a lower shell part 2 and a hinged over a hinge 3 'with the lower shell part 2 upper shell part 3 shown.

The alpine ski boot 1 has an access opening 4 substantially along a longitudinal axis L. In the closed state shown in the figures, both the lower shell part 2 and the upper shell part 3 have border sections 2 'and 3' adjoining the access opening 4, respectively are arranged overlapping in the closed state.

In the comparatively made of a hard plastic material, for example made of a polyamide-12 elastomer or the like shell 2, an inner shoe 5 is added, which consists of comparatively flexible materials including, at least in sections, a padding.

The user can to get into the ski boot 1, the overlapping shell edge portions 2 ', 3' of the lower and upper shell part 2, 3 from each other, so that an entry into the liner 5 is made possible, then the trapped by the shell part 2, 3 volume and thus closely enclose the foot of the user, whereby a direct power transmission from the ski boot 1 to one connected to the ski boot 1 Ski is possible.

In order to define the volume enclosed by the two shell parts 2, 3, i. To "tighten" the shoe, the upper shell part 3 in a conventional manner, two buckles 6, which cooperate with a respective detent element 7.

However, the lower shell part 2 does not know - as in alpine shoes previously common - as such buckles / locking elements 6.7, but it is here as traction means 8 a pull rope provided, starting behind a front toe section substantially over the entire instep area of the lower shell part 2 is crossed.

In order to guide the traction cable 8 crossing and to achieve as low as possible clamping force introduction, 2 rotatably mounted rollers 9 are arranged on the lower shell part. The rollers 9 are each rotatably mounted on an axle 9 ', which in turn is received in a bearing block 11.

Bearing blocks 11 are in this case connected with rivets or screws 11 'with the lower shell part 2, so that when applying a clamping force on the tension cable 8 by means of a clamping element 12, the lower shell part 2 pulls together by the extent of overlap of the edge portions 2' is increased.

As a clamping element 12 is as in Fig. 1 and 2 can be seen, a rotary closure provided, with which over rotating a control element, the active clamping length of the tension cable 8 can be shortened and thus a clamping force on the rollers 9 and the bearing blocks 11 can be applied to the lower shell part 2. Since the applied clamping force is not dependent on the predetermined distance of the recesses of a locking element - as is the case with the buckles / locking elements 6,7 - can on the individual determination of the rotary closure 12 a particularly fine-scale adjustment of the enclosed by the lower shell part 2 circumference or Volume can be achieved.

Claims (5)

1. Ski boot (1), in particular an alpine ski boot, comprising an inner shoe (5) made of a flexible shaft material and a shell (2, 3) which surrounds the inner shoe (5) at least in portions and comprises a lower shell part (2) that encloses the foot at least in portions in the use position and an upper shell part (3) hingedly connected to the lower shell part (2), the lower shell part (2) having an access opening (4) extending substantially in the direction of a longitudinal axis (L), characterised in that the access opening (4) is closed in the closed state by edge portions (2') of the lower shell part (2) that are arranged so as to overlap, a rope-like traction means (8) being provided in the instep region, which traction means is guided in a criss-cross manner by means of deflection means (9), a rotary or ratchet closure being associated with the traction means (8) as a clamping element (12) for introducing a clamping force, which clamping element (12) is arranged laterally in an upper end portion of the instep region, the upper shell part (3) having at least one buckle (6).
2. Ski boot according to claim 1, characterised in that at least partially, preferably exclusively, rotatably mounted rollers (9) are provided as deflection means.
3. Ski boot according to claim 2, characterised in that the rollers (9) are each rotatably mounted on a hinge pin (9'), the hinge pin (9') preferably being pivotably mounted.
4. Ski boot according to claim 3, characterised in that the hinge pins (9') are fastened in bearing blocks (11) having substantially two retaining fingers.
5. Ski boot according to claim 4, characterized in that the bearing blocks (11) are fastened to the lower shell part (2), preferably in each case by means of a pin-shaped connecting element (11'), in particular a rivet or screw.

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