EP2976138B1 - Climbing aid, ski and method for producing a climbing aid - Google Patents

Description

The invention relates to a climbing aid for a touring ski, with a flat base element, which is connected to the inside with fastening means for releasable attachment to a running surface of the ski and on the outside with acting counter to a direction of travel Rückgleithemmelementen, as a basic element, a flexible plastic support material is provided and the Rückgleithemmelemente are integrally formed with the plastic carrier material, and a ski with such a climbing aid.

Furthermore, the invention relates to a method for producing a climbing aid for a touring ski, wherein a flat base element is connected on the inside with fastening means for releasable attachment to a running surface of the ski and on the outside with counter to a direction of travel acting Rückgleithemmelementen.

When ski touring usually so-called climbing skins are used as a climbing aid. The climbing skins are applied to the skiing area. Usually, the skins are provided on the back with a flexible pressure-sensitive adhesive, which is connected to the ski running surface. In this state, the ascent is overcome. Before departure, the skins are removed, optionally covered on the adhesive-coated side with a thin film and folded.

Such a climbing skin and a method for producing the same is for example from EP 2 000 182 A1 known. The climbing skin has a base layer to which a pile of fibers is attached. The fibers may be a mono- or a multifilament.

Basically, the known ascent assistance work satisfactorily, but have some disadvantages. Due to the complicated structure, the production is relatively expensive.

Furthermore, the skins are relatively heavy. However, the main disadvantage of climbing skins lies in the fact that the climbing skins tend to form cleats in certain snow conditions, which means the formation of lumps of snow and ice. If at the beginning of a ski tour at low altitudes very wet snow conditions exist, the fibers of the risers are soaked. During the ascent, the temperature drops with the result that the snow cover turns into a so-called dry snow. This dry snow can ante on the wet or drenched climbing skin, which may cause the mentioned clump formation, which can make the further ascent massively difficult.

In addition, flexible climbing aids made of plastic have already been proposed in the prior art, in which Rückgleithemmende elements are formed. However, the design of Rückgleithemmenden elements in these climbing aids has proved to be less satisfactory for touring skis, so that the known plastic climbing aids could not prevail. In practice, it was observed in particular that such climbing aids either had too high a sliding resistance or did not provide sufficient support for slope crossings.

The DE 83 25 866 U1 discloses a band-shaped climbing aid device, which is fastened by means of loops on a ski; Alternatively, however, an adhesive layer may also be provided. The climbing aid device has on its use surface facing away from the tread surface on a sawtooth structure with undercuts, so that the climbing aid slides in one direction better on snow than in the opposite direction. However, this climbing aid does not provide sufficient slip-resistance in ascent routes which have slope crossings.

According to the CH 162175 A is a rollable anti-skid strip for skis intended to replace the known climbing skins. The anti-skid strip is made of rubber, with tooth-type anti-slip agents consisting of one piece of the lower surface and forward sliding barely obstruct, but to prevent the backward sliding. In one embodiment, the anti-skid on both sides has anti-friction agents, which protect against sliding forward with the one surface in front and with the other surface. In practice, however, no satisfactory results could be achieved even with such antislip agents.

The DE 84 22 010 U1 describes a further climbing aid consisting of a band which is provided on a side facing the ground with backward slats. The slats and the band can be made in one piece of plastic. The climbing aid is attached to the ski by means of an adhesive layer on top of the belt. The lamellae are formed in rows in rows, the rows are arranged in a circular arc. Disadvantageously, however, in this lamellar training in the overlapping lamellar slits - similar to the classic climbing skin - wet snow accumulate, which can easily freeze during temperature changes during the climb. Such icing creates a high braking effect, which makes the ascent correspondingly more difficult.

The FR 1 170 272 A discloses a further releasably attachable to a ski anti-slip help which is made of a rubber material. This results in a flexibility of the anti-slip device, which has on the underside back-inhibiting tongue elements. However, the arrangement of the tongue elements on the anti-slip assistance brings with it the disadvantage described above that sufficient anti-slip can not be achieved in slope crossings.

DE 82 05 601 U1 describes a further climbing aid which may be formed by a rubber part or an elastic plastic part. The elasticity is such that the climbing aid can be hung on the ski by means of eyelets and hooks. On the other hand, however, a bond to the ski is being considered. The climbing aid has sawtooth-like elevations on the underside. Also this climbing aid is subject to the restrictions described above.

Furthermore, climbing aids in the form of crampons are known in the prior art. In the AT 12 128 U1 Such a climbing aid is shown, which are made of a hard, inflexible material, especially stainless steel or plastic. The climbing aid has lateral spikes. In addition, resistance fins are provided. The attachment of this climbing aid takes place in the binding area by textile or plastic bands, which are provided with Velcro. Such ascent aids made of hard, inflexible material are particularly suitable for ascent to icy ground. For longer climbs on snow, the crampons are not designed. In addition, such lifts are not adaptable to the geometry of the ski.

In addition, cross-country skis are known in the prior art, in which a scale-like area is provided in the central region. From the EP 0 592 384 For example, a cross-country ski is known in which the scale-like area serves as a repulsion aid to prevent the sliding back during the cross-country skiing step. However, such a Rückgleithilfe can not be used for touring skis, since touring skis are provided with steel edges, so that the rückgleithemmende area between the steel edges would come to rest and thus could not press enough into the snow surface.

Another example of a different cross-country ski is in the US 4,919,447 A described.

The object of the invention is to provide a structurally simple, inexpensive to produce climbing aid with which the disadvantages of known climbing aids eliminated or at least alleviated. Accordingly, the invention is particularly aimed at specifying a climbing aid, which ensures sufficient grip on the ground in changing snow conditions and slope crossings.

To solve this problem, a climbing aid with the features of claim 1, a ski with the features of claim 12 and a method with the features of claim 13 is provided. Preferred embodiments are specified in the dependent claims.

As a basic element of the climbing aid, a flexible plastic carrier material is provided, wherein the Rückgleithemmelemente are integrally formed with the plastic carrier material. Accordingly, the flat basic element of the climbing aid consists of a flexible plastic carrier material which has a profile with the Rückgleithemmelementen on the snow-facing side. This design ensures optimum grip on the ground, even in changing snow conditions, the formation of clumps on the snow-facing side, also referred to as a stump formation is largely prevented. The plastic carrier material with the Rückgleithemmelementen has a much lower tendency to wetting with water than the known climbing skins, so that the problematic in the prior art in terms of stud formation wetting of the fibers is avoided. Thus, a sufficient slip protection can be ensured even if the snow conditions vary due to the prevailing temperature and weather conditions during the climb. The Rückgleithemmelemente are in this case, unlike the fibers of the climbing skins, arranged substantially immovably on the plastic carrier material, which of course is given a certain deformability by the inherent elasticity of the plastic material. Due to the flexibility of the plastic carrier material, the handling of the climbing aid advantageously corresponds to that of climbing skins, so that the climbing aid can be attached to the ski in the usual way or removed therefrom. For the purposes of this disclosure, the flexible plastic carrier material is understood to mean a plastic material sheet which can be adapted to the geometry of the running surface of the ski by hand force at least in sections, but preferably over the entire length. In the mounted climbing position, the climbing aid preferably extends over the entire length of the ski, whereby for a favorable introduction of force is ensured in the snow surface. The execution of the climbing aid also advantageously allows efficiency gains and cost reductions in mass production.

To solve the problem set in the beginning, the basic element according to an embodiment in lateral areas Rückgleithemmelemente with obliquely to the direction of goal Abstoßflanken and in the central region Rückgleithemmelemente arranged substantially perpendicular to the direction of repulsion Abstoßflanken on. Advantageously, so that the sliding resistance to the front, especially in slope crossings, can be reduced, the slip resistance is ensured to the rear by the vertical arrangement of the Rückgleithemmelemente in the central region. Preferably, the Rückgleithemmelemente are arranged in the lateral areas in a plurality of rows obliquely to the direction of travel, wherein the Rückgleithemmelemente in the central region are preferably also arranged in a plurality of rows, but substantially perpendicular to the direction of travel. Each row in the lateral areas or in the middle area preferably has several, in particular between 2 and 10, Rückgleithemmelemente.

According to an alternative embodiment of the invention for solving the same object, the base element has Rückgleithemmelemente of a first type in the lateral edge regions and Rückgleithemmelemente a second type in the middle region, wherein the repelling flanks of the Rückgleithemmelemente of the first type a shorter length and / or a lower height than the Abstoßflanken the Have Rückgleithemmelemente of the second type. According to the above alternative embodiment, hereby the common technical effect can be achieved that the sliding in the direction of travel is facilitated by the weaker Rückgleithemmelemente on the lateral areas, while the slip resistance is ensured by the more pronounced Rückgleithemmelemente in the central region.

In this embodiment, it has proved to be advantageous when the repelling edges of the Rückgleithemmelemente are arranged in the lateral regions at an angle of 30 ° to 60 ° to the direction of travel. For example, the angle between the inclined Rückgleithemmelementen on the sides and the direction of travel can be substantially 45 °.

In addition, it is preferred if the Rückgleithemmelemente in the lateral areas and in the central region similar, in particular substantially identical, are configured. Accordingly, in this embodiment preferably Rückgleithemmelemente the same shape and provided with the same size, the Rückgleithemmelemente are placed in the lateral regions obliquely to the arranged therebetween Rückgleithemmelementen.

In order to prevent lateral slipping, in particular in slope crossings, it is preferably provided that the base element has side rail anchoring elements extended in lateral areas and / or in the central region in the direction of travel. The Seitgleithemmelemente are preferably formed by longitudinal webs which are substantially in the direction of travel, i. in the longitudinal direction of the climbing aid, extend. As a result, the lateral support, especially for slope crossings, can be improved.

Particularly preferred is an embodiment in which the base element is made of a polyolefinic material, in particular polyethylene. The polyolefinic materials have the advantage that they on the one hand have a low specific gravity, usually between 0.9 and 0.98 g / cm ³ , furthermore have very good sliding properties on snow and are also less susceptible to ice formation in use.

In order to achieve the slip-resistant effect of the climbing aid, it is advantageous if the Rückgleithemmelemente opposite to the direction of travel rising, each having a repelling edge ramp elements. The repelling flanks are preferably arranged at least in sections essentially perpendicular to the longitudinal plane of the climbing aid in order to achieve the holding effect on the snow surface. Regarding the shape of the ramp elements Within the scope of the invention, various designs and modifications are conceivable. For example, the ramp elements can be made flaky. However, the ramp elements may also be elongated, wherein the ramp elements may extend over substantially the entire width of the plastic carrier material. The repelling flanks of the ramp elements can be rectilinear or arcuately curved. In plan view, the Rückgleithemmelemente example, polygonal, in particular trapezoidal, be formed.

In test experiments, it has surprisingly been found to be favorable when the repelling flanks have a height of 0.2 to 1 mm, in particular from 0.4 to 0.8 mm. It has been shown that a height of the repelling flanks of less than 0.2 mm too little hold on the increase, but a height of the repelling flanks of greater than 1 mm would give too much braking effect.

In order to improve the sliding inhibition against the direction of travel, it is also advantageous if the repelling flanks form acute-angled undercuts.

According to a preferred embodiment, the Rückgleithemmelemente are arranged in a plurality, preferably staggered rows. Preferably, several Rückgleithemmelemente are provided in each row. With regard to the introduction of force into the snow surface, it is advantageous if the Rückgleithemmelemente are arranged substantially over the entire length and / or width of the climbing aid, the climbing aid in the mounted climbing position preferably covers substantially the entire tread of the ski.

In order to facilitate the transport of the climbing aid, it is advantageous if the base element has at least two longitudinal sections, which are preferably connected to each other in each case via a hinge connection. In some versions, the Flexibility of the plastic carrier material are sufficient in order to be able to arrange the climbing aid in a compact transport position, in particular in a folded or rolled-up position. In other embodiments, the arrangement can be facilitated in the transport position by the hinge connection. The articulated connection can be used, for example, as a folding line, around which successive longitudinal sections of the climbing aid are folded together.

According to a preferred embodiment, the articulated connection has a connecting element which is arranged substantially perpendicular to the longitudinal direction of the basic element and has a higher flexibility than the plastic carrier material. It is advantageous if the climbing aid is made in a 2-component injection molding process, wherein the connecting element is formed by a soft elastic material.

According to a further preferred embodiment, the plastic carrier material for forming the articulated connection has at least one notch extending preferably over the entire width of the plastic carrier material, wherein preferably each articulated connection has a plurality of adjacent notches. Due to the reduction in cross-section of the plastic carrier material in the region of the notch, the pivotability of the longitudinal sections to one another is improved. This design is manufacturing technology particularly favorable.

In order to be able to arrange the climbing aid in a compact transport position, it is favorable if the plastic carrier material has at least one notch on the inside and at least one notch on the outside, wherein preferably more than two notches are provided alternately on the inside and on the outside of the plastic carrier material are. For stowing the climbing aid, the longitudinal sections can be folded along the notches.

The pivotability of the longitudinal sections to each other can further be achieved in that the plastic carrier material is underlaid with a bonding layer, which has a smaller layer thickness and / or a higher elasticity than the plastic carrier material, wherein between two longitudinal sections of the plastic carrier material in each case a gap is formed. Accordingly, the climbing aid in the region of the gap between the longitudinal sections on an increased flexibility, which facilitates the collapse of the climbing aid for transport.

In the embodiments described above, the climbing aid in particular fixed longitudinal sections together. In contrast, it is provided according to a further preferred embodiment that the base element has at least two longitudinal sections, which are connected to one another via a detachable connection. Accordingly, the climbing aid designed in this embodiment is dismantled.

In order to disassemble the climbing aid for transport, it is advantageous if the detachable connection has cooperating interlocking elements, which are preferably adapted to lock a release of the compound in the longitudinal plane of the base member and release perpendicular thereto. The interlocking elements are preferably designed in the manner of a tongue and groove connection, wherein the cooperating interlocking elements engage positively in the mounted ascent position. The interlocking elements may be formed for example by a projection and a matching recess. In this embodiment, the longitudinal sections of the base element are preferably formed by injection molded parts.

As usual with the known climbing skins, an adhesive layer for adhesive, releasable attachment to the tread of the ski is preferably provided as fastening means.

In order to improve the attachment of the adhesive layer, it is advantageous if between the flexible plastic carrier material and the adhesive layer, an adhesion-promoting layer, in particular of a nonwoven material, is provided.

If the climbing aid in the climbing position along the ski covering the longitudinal edges of the ski is substantially over the entire ski width, surprisingly, optimal Rückgleithemmung can be achieved.

The object underlying the invention is also achieved by a method as mentioned above, in which the base element is made of a flexible plastic carrier material, in which the Rückgleithemmelemente are formed. Advantageously, savings and simplifications compared to the comparatively complicated production of climbing skins can be achieved hereby.

In the method for producing the ascent aid, a film web is produced in a first step, preferably by extrusion, which is processed in a second step with a roller profiled in accordance with the rebar clamping elements. Depending on the profile of the roller therefore various forms of Rückgleithemmelementen can be made so that the climbing aid can be tailored to the particular requirements.

In this method, it is also advantageous if in a first step, a film web is produced by extrusion, which is connected to an adhesive layer, in particular of a nonwoven material, for applying an adhesive layer. After extrusion, the adhesion promoting layer, eg a fleece made of plastic or glass fibers or a fabric,
applied, wherein the bonding layer anchored in the melt. Thereby, the adhesion between the film web and the adhesive layer can be improved. Thereafter, the Rückgleithemmelemente can be formed by embossing with a profiled roller.

Alternatively, the base element, preferably in several longitudinal sections, be produced by injection molding.

• Fig. 1 eine erfindungsgemäße Aufstiegshilfe zur lösbaren Befestigung an einem Ski, wobei die Aufstiegshilfe ein biegsames Kunststoffträgermaterial mit schuppenförmigen Rückgleithemmelementen aufweist;
• Fig. 2 eine Seitenansicht des Skis mit der Aufstiegshilfe in der am Ski befestigten Aufstiegsstellung;
• Fig. 3 eine Unteransicht des Skis mit der Aufstiegshilfe;
• Fig. 4 schematisch eine Produktionsanlage zur Herstellung der erfindungsgemäßen Aufstiegshilfe;
• Fig. 5 einen Ausschnitt einer weiteren Ausführung der Aufstiegshilfe, bei welcher schuppenartige Rückgleithemmelemente in gegeneinander versetzten Reihen angeordnet sind;
• Fig. 6 einen Ausschnitt einer weiteren Ausführung der Aufstiegshilfe, bei welcher in Draufsicht annähernd trapezförmige Rückgleithemmelemente vorgesehen sind;
• Fig. 7 einen Ausschnitt einer weiteren Ausführung der Aufstiegshilfe mit verschiedenartigen Rückgleithemmelementen;
• Fig. 8 einen Ausschnitt einer weiteren Ausführung der Aufstiegshilfe, bei welcher in den seitlichen Bereichen schräg gestellte Rückgleithemmelemente und im Mittelbereich senkrecht zur Gehrichtung angeordnete Rückgleithemmelemente vorgesehen sind;
• Fig. 9 einen Ausschnitt einer gegenüber Fig. 8 abgewandelten Ausführung der Aufstiegshilfe;
• Fig. 10 einen Ausschnitt einer weiteren Ausführung der Aufstiegshilfe, bei welcher an den seitlichen Randbereichen kürzere und weniger stark ausgeprägte Rückgleithemmelemente als im Mittelbereich vorgesehen sind;
• Fig. 11 einen Ausschnitt einer weiteren Ausführung der Aufstiegshilfe mit rampenförmigen Rückgleithemmelementen, welche sich über die gesamte Breite der Aufstiegshilfe erstrecken;
• Fig. 12a einen Ausschnitt einer weiteren Ausführung der Aufstiegshilfe mit noppenförmigen Rückgleithemmelementen;
• Fig. 12b einen Ausschnitt einer weiteren Ausführung der Aufstiegshilfe mit anders gestalteten Noppenelementen;
• Fig. 13 eine Ansicht der Aufstiegshilfe in einem der Aufstiegsstellung am Ski entsprechenden Zustand (Fig. 13a) bzw. in einem aufgerollten Transportzustand (Fig. 13b);
• Fig. 14 eine Ansicht einer weiteren Ausführung der Aufstiegshilfe, bei welcher zwei über eine Gelenkverbindung verbundene Längsabschnitte vorgesehen sind, wobei die Aufstiegshilfe in Fig. 14a in einem Zustand entsprechend der am Ski montierten Aufstiegsstellung und in Fig. 14b in einem zusammengeklappten Transportzustand dargestellt ist;
• Fig. 15 eine Ansicht einer weiteren Ausführung der Aufstiegshilfe, bei welcher das Kunststoffträgermaterial alternierend an der Innenseite und an der Außenseite Einkerbungen aufweist, so dass die Aufstiegshilfe zwischen einem Zustand entsprechend der am Ski montierten Aufstiegsstellung (Fig. 15a) und einem zusammengeklappten Transportzustand (Fig. 15b) überführbar ist;
• Fig. 16 eine Ansicht einer weiteren Ausführung der Aufstiegshilfe, bei welcher die Längsabschnitte des Kunststoffträgermaterials mit einer vergleichsweise dünnen Verbindungsschicht unterlegt sind, so dass die Längsabschnitte der Aufstiegshilfe an den Spalten zusammenfaltbar ist;
• Fig. 17 eine Ansicht einer weiteren Ausführung der Aufstiegshilfe, bei welcher die Längsabschnitte formschlüssig miteinander verbunden sind;
• Fig. 18 eine Ansicht einer gegenüber Fig. 7 abgewandelten Ausführung der Aufstiegshilfe;
• Fig. 19 eine im Wesentlichen Fig. 15a entsprechende Ansicht, wobei jedoch zur Ausbildung der Gelenkverbindung mehrere, schmälere Einkerbungen vorgesehen sind; und
• Fig. 20 eine im Wesentlichen Fig. 8 entsprechende Ansicht, wobei zusätzlich an den Seitenbereichen längliche Seitgleithemmelemente vorgesehen sind.

The invention will be explained below with reference to exemplary embodiments illustrated in the drawing, to which, however, it should not be restricted. Show:

• Fig. 1 a climbing aid according to the invention for releasable attachment to a ski, wherein the climbing aid has a flexible plastic carrier material with scale-shaped Rückgleithemmelementen;
• Fig. 2 a side view of the ski with the climbing aid in the attached to the ski ascent position;
• Fig. 3 a bottom view of the ski with the climbing aid;
• Fig. 4 schematically a production plant for producing the climbing aid according to the invention;
• Fig. 5 a section of another embodiment of the climbing aid, in which scale-like Rückgleithemmelemente are arranged in staggered rows;
• Fig. 6 a detail of another embodiment of the climbing aid, in which approximately trapezoidal Rückgleithemmelemente are provided in plan view;
• Fig. 7 a section of another embodiment of the climbing aid with various Rückgleithemmelementen;
• Fig. 8 a section of another embodiment of the climbing aid, in which in the lateral regions obliquely Asked Rückgleithemmelemente and arranged in the central region perpendicular to the direction of travel Rückgleithemmelemente;
• Fig. 9 a section of a opposite Fig. 8 modified version of the climbing aid;
• Fig. 10 a detail of another embodiment of the climbing aid, in which at the lateral edge regions shorter and less pronounced Rückgleithemmelemente are provided as in the central region;
• Fig. 11 a section of another embodiment of the climbing aid with ramp-shaped Rückgleithemmelementen which extend over the entire width of the climbing aid;
• Fig. 12a a section of another embodiment of the climbing aid with knob-shaped Rückgleithemmelementen;
• Fig. 12b a section of another embodiment of the climbing aid with differently shaped knob elements;
• Fig. 13 a view of the climbing aid in a climbing position corresponding to the ski ( Fig. 13a ) or in a rolled-up transport state ( Fig. 13b );
• Fig. 14 a view of another embodiment of the climbing aid, in which two longitudinal sections connected via a hinge connection are provided, wherein the climbing aid in Fig. 14a in a state corresponding to the ski-mounted climbing position and in Fig. 14b is shown in a folded transport state;
• Fig. 15 a view of a further embodiment of the climbing aid, in which the plastic carrier material has notches alternately on the inside and on the outside, so that the climbing aid between a state corresponding to the ski mounted climbing position ( Fig. 15a ) and a folded transport state ( Fig. 15b ) is convertible;
• Fig. 16 a view of a further embodiment of the climbing aid, wherein the longitudinal sections of the plastic carrier material are underlaid with a comparatively thin connection layer, so that the longitudinal sections of the climbing aid is collapsible at the columns;
• Fig. 17 a view of a further embodiment of the climbing aid, in which the longitudinal sections are positively connected to each other;
• Fig. 18 a view of one opposite Fig. 7 modified version of the climbing aid;
• Fig. 19 one essentially Fig. 15a corresponding view, but provided to form the joint connection several, narrower indentations; and
• Fig. 20 one essentially Fig. 8 corresponding view, wherein in addition to the side areas elongated Seitgleithemmelemente are provided.

Fig. 1 shows a climbing aid 1 for releasable attachment to a ski 1 '. Climbing Aid 1 is used on ski touring tours over snow and ice covered slopes. The climbing aid 1 consists of a flat, ie extended in the longitudinal plane, base element 2, which is connected to the inside with fastening means 3 for tool-releasable attachment to a tread 4 of the ski 1 '. In the embodiment shown, the fastening means 3 are formed by an adhesive layer 5, which in the direction of arrow P with the tread 4 is connectable. In the ascent position mounted on the ski 1 '( Fig. 2 ), the climbing aid 1 extends substantially over the entire length and substantially over the entire width of the ski 1 ', including its longitudinal edges made of steel, whereby the required power transmission is ensured on the snow surface. To remove the climbing aid 1, the adhesive connection is released.

How out Fig. 1, 2 Furthermore, it can be seen on the outside of the climbing aid 1, ie on the side facing the snow surface, Rückgleithemmelemente 6 are provided, which prevent the ascent sliding back of the ski 1 'opposite to direction W. The Rückgleithemmelemente 6 are distributed substantially over the entire length and width of the climbing aid 1. In the embodiment shown, a flexible plastic carrier material 2 'is provided as the basic element 2, wherein the Rückgleithemmelemente 6 are integrally formed with the plastic carrier material 2'. Accordingly, the Rückgleithemmelemente 6 are formed as a profile of the plastic carrier material 2 '. In the embodiment shown, the sheet-like base element 2 with the back-restraining elements 6 formed therein is made of the same material as the running surface 4 of the ski 1 ', wherein preferably a polyolefinic material such as polyethylene is used.

How out Fig. 1 to 3 Furthermore, as Rückgleithemmelemente 6 in the embodiment shown opposite to the direction of travel W rising ramp elements 7 are provided, which at least partially transverse to the direction of travel W extending Abstoßflanken 8 have. According to Fig. 1 to 3 the ramp elements 7 are formed scaly, wherein the ramp elements 7 are arranged in a plurality of transverse to the longitudinal direction of the climbing aid 1 rows, each having a plurality of ramp elements 7. The sheet-like or film-like plastic carrier material 2 'is adhered to the running surface 4 in the direction of the arrows P in accordance with the known climbing skins. In a forward movement of the ski 1 'in direction W, the ski 1' can slide forward, but is prevented by the preferably substantially perpendicular to the skiebene Abstoßflanken 8 of the Rückgleithemmelemente 6 on sliding against the direction of travel W.

Fig. 4 schematically shows a production plant for the production of the climbing aid 1. In an extruder 10, the plastic material is melted and then pressed through a nozzle 11. In the embodiment shown, a flat nozzle is used, with which a sheet-like or sheet-like material web 12 is produced. The material web 12 is then conveyed by cooperating rollers 13, 14, which are acted upon by a predetermined pressure P. The roller 14 is in this case provided with a profile 15 which images the profiling of the base element 2 in the negative. Involved with the Roller pair 13, 14, the profile 15 is impressed under pressure P in the web 12, wherein the finished base member 2 consisting of the plastic substrate 2 'with the profile 15 of the roller 14 corresponding Rückgleithemmelementen 6 is obtained.

As a result of this simple manufacturing method, climbing aids 1 can be produced with a wide variety of configurations of the back-restraining elements 6, wherein in the Fig. 5 to 12 greatly enlarged sections of preferred embodiments of the base member 2 are shown, to which the invention is not limited.

According to Fig. 5 Shingled, ie locally limited, Rückgleithemmelemente 6 are provided, which are arranged in mutually offset rows, wherein the offset between the rows in the embodiment shown corresponds substantially to half the width of the scale-shaped Rückgleithemmelemente 6. The repelling flanks 8 of the Rückgleithemmelemente 6 are arcuately curved in the embodiment shown.

In Fig. 6 an alternative embodiment of the scale-shaped Rückgleithemmelemente 6 is shown, which rectilinear Abstoßflanken 8 substantially perpendicular to the direction W have. The Rückgleithemmelemente 6 are approximately trapezoidal in plan view.

According to Fig. 7 on the one hand in plan view rectangular Rückgleithemmelemente 6 are provided, whose longitudinal sides are oriented in direction W, wherein the narrow sides are perpendicular to the direction of W. The seen in Gehrichtung W front narrow sides of this Rückgleithemmelemente are designed as repulsion edges 8. In addition, further, substantially rectangular Rückgleithemmelemente 6 are provided, wherein the repelling flanks 8 are each formed on the seen in Gehrichtung W rear longitudinal sides of these Rückgleithemmelemente 6.

In Fig. 8 a further embodiment of the climbing aid 1 is shown in which the base element 2 at the lateral areas, ie adjacent to the longitudinal edges, obliquely to the direction of travel asked Rückgleithemmelemente 6 'has. The repelling flanks 8 of the lateral Rückgleithemmelemente 6 'are arranged in the embodiment shown at an angle α of 45 ° to the direction W. In addition, in the middle region between the lateral regions of the base element 2, back-restraining elements 6 "are provided with ejection flanks 8 arranged essentially perpendicular to the direction of travel. An embodiment of this type has the advantage that the resistance to sliding in the direction W towards the front, especially in slope crossings, can be reduced, but the resistance against the sliding back is sufficiently given in the middle region by the orthogonal arrangement of the back-restraining elements 6 " the execution of Fig. 9 the Rückgleithemmelemente 6 'in the lateral areas and in the central region designed substantially identical, wherein the Rückgleithemmelemente 6', 6 "are arranged in a plurality of rows along the base element 2. The Rückgleithemmelemente 6 ', 6" have in the embodiment shown rectilinear Abstoßflanken 8.

The execution according to Fig. 9 differs in particular from that of Fig. 8 in that the repulsion edges 8 of the back-restraining elements 6 ', 6 "extend arcuately curved in sections.

According to the in Fig. 10 illustrated embodiment of the climbing aid 1, the base member 2 on the two lateral areas Rückgleithemmelemente 6a of a first type and in the central region Rückgleithemmelemente 6b at least a second type. The repelling flanks 8 of the Rückgleithemmelemente 6a of the first type on the sides have a shorter length or a lower height than the repelling flanks 8 of the Rückgleithemmelemente 6b of the second type. This can have substantially the same effect as with the embodiment according to Fig. 9 be achieved. In addition, in the embodiment shown, in the middle region, back-restraining elements 6c of a third type are provided, which essentially correspond to the back-restraining elements 6b of the second type, but in lesser dimensions Size corresponds. The Rückgleithemmelemente 6b of the second type and the Rückgleithemmelemente 6c of the third type are formed in the form of symmetrical, isosceles trapezoids.

In Fig. 11 is shown in plan view a climbing aid 1, in which extend the Rückgleithemmelemente 6 in the form of ramp elements 7 along the entire width of the climbing aid 1. This results in a sawtooth-like profile of the base element 2.

According to Fig. 12a are provided as Rückgleithemmelemente 6 substantially perpendicularly projecting from the longitudinal plane of the base member 2 knob elements 16 which are arranged in mutually offset rows.

Fig. 12b shows a climbing aid 1 with an alternative embodiment of the stud elements 16, which are each composed of a plurality of slightly staggered platelets 16 '. In addition, Mittelstege 16 "are provided, which are composed of elongated platelets.

How out Fig. 13 can be seen, the climbing aid 1 for the transport of one of the ascent position on the ski 1 'corresponding state ( Fig. 13a ) in a transport state ( Fig. 13b ) are rolled up. Due to the manufacture of the base element 2 of a plastic carrier material 2 ', it is here, unlike climbing skins, not necessary to cover the adhesive layer 5 with a release film before the climbing aid 1 is rolled up.

In Fig. 14 an embodiment of the climbing aid 1 is shown, in which the base element 2 has a plurality of longitudinal sections 17, which are connected in pairs via a respective joint 18. According to Fig. 14 For example, the articulated connection 18 has a connecting element 19 arranged perpendicular to the longitudinal direction of the base element 2, which has a higher flexibility, ie a lower deformation resistance, than the plastic carrier material 2 '. For this purpose, the climbing aid 1 be produced in a 2-component injection molding process. The longitudinal sections 17 of the climbing aid 1 on the one hand in an assembly position on the ski 1 'corresponding state can be arranged, which in Fig. 14a is schematically illustrated by a planar alignment of the longitudinal sections 17. On the other hand, the climbing aid 1 can be folded along the articulated joints 18 when the climbing aid 1 is to be stowed after use. In Fig. 14b the folding of the longitudinal sections 17 is schematically illustrated with arrows 20. In the Fig. 14 to 16 are the sake of clarity, the adhesive layer 5 and the Rückgleithemmelemente 6 not shown.

In Fig. 15 an embodiment of the climbing aid 1 is shown, in which the plastic carrier material 2 'for forming the joint connections 18 notches 21 has. The notches 21 are formed by groove-shaped depressions of the plastic carrier material 2 '. In order to improve the pivotability of the longitudinal sections 17 at the notches, the indentations 21 extend over the entire width of the plastic carrier material 2 '. In the embodiment shown, the notches 21 are alternately provided on the inside and on the outside of the plastic carrier material 2 '. Due to the articulated joints 18 formed by the notches 21, the climbing aid 1 is between a state corresponding to the ascent position, which in Fig. 15a is shown schematically as a planar arrangement of the longitudinal sections 17, and a folded transport state ( Fig. 15b ), which is particularly suitable for stowing the climbing aid 1 in a backpack.

In Fig. 16 an embodiment of the climbing aid 1 shown, in which the plastic carrier material 2 'is connected over the entire length with a connecting layer 22, which has a smaller layer thickness than the plastic carrier material 2'. The longitudinal sections 17 of the plastic carrier material 2 'are arranged at a distance from one another by gaps 23, wherein the gaps 23 in the embodiment shown are designed as articulated connections 18. The climbing aid 1 points in the area of Column 23 a higher flexibility or a lower deformation resistance than in the other sections, so that the stowage of the climbing aid 1 by folding the longitudinal sections 17 along the articulated joints 18 is facilitated. For example, an elastic film or a flexible fabric can be provided as the bonding layer 22, the foldability of the climbing aid 1 being ensured due to the spacing between the adjacent longitudinal sections 17.

In Fig. 17 an embodiment of the climbing aid 1 is shown, in which the longitudinal sections 17 are connected to each other via tool-releasable connections. The releasable connections have cooperating form-fitting elements 25 in the manner of a tongue-and-groove connection, which is releasable in the direction perpendicular to the longitudinal plane of the base element 2. In the connected state, the positive locking elements 25 cause that the connection is blocked in the longitudinal plane of the base member 2, so that an unintentional release of the connection in use is reliably prevented. The longitudinal sections 17 may be formed by injection molded parts in this embodiment.

In Fig. 18 a further embodiment of the climbing aid 1 is shown, in which a detachable connection between adjacent longitudinal sections 17 is provided. The releasable connection has as form-locking elements 25 in each case at least one male connecting part 26 on the one longitudinal section 17 and at least one matching female connecting part 27 on the other longitudinal section 17. In the embodiment shown, connecting parts 26, 27 are punched out of the plastic carrier material 2 '.

Fig. 19 shows a modification of the embodiment according to Fig. 15a in which in each case a plurality of narrower notches 21 are provided for forming the articulated connections 18. In Fig. 19 In addition, a bonding layer 28, in particular of a nonwoven material, which is provided on the underside of the flexible plastic support material 2 'facing the running surface of the ski 1', can be seen schematically in order to prevent the attachment of the material To improve the adhesive. The adhesion-promoting layer 28 is preferably applied after the extrusion of the plastic web 2 'forming film web.

Fig. 20 shows a modification of the embodiment according to Fig. 8 in which the base element 2 has in the lateral areas in the direction of travel W extended Seitgleithemmelemente 6 '''in the form of narrow longitudinal webs. This design has proved to be particularly advantageous for slope crossings. The longitudinal webs are superimposed on the Rückgleithemmelementen 6. In the embodiment shown, the base element 2 in the lateral regions in each case two rows of offset in the direction of travel W Seitgleithemmelementen 6 '''on.

Claims (15)

1. Climbing aid (1) for a touring ski, comprising a planar base element (2) which is connected on the inner side to fastening means (3) in order to be detachably fastened to a running surface (4) of the ski (1') and which is connected on the outer side to backwards-sliding prevention elements (6) acting counter to a direction of travel (W), a flexible plastic support material (2') being provided as a base element (2), and the backwards-sliding prevention elements (6) being integrally formed with the plastic support material (2'), characterised in that, in lateral regions, the base element (2) has backwards-sliding prevention elements (6') comprising push-off wings (8) positioned obliquely to the direction of travel (W) and, in the central region, has backwards-sliding prevention elements (6") comprising push-off wings (8) arranged substantially perpendicularly to the direction of travel (W), and/or in that, in lateral edge regions, the base element (2) has backwards-sliding prevention elements (6a) of a first type, and, in the central region, has backwards-sliding prevention elements (6b) of a second type, the push-off wings (8) of the backwards-sliding prevention elements (6a) of the first type being of lesser length and/or of lesser height than the push-off wings (8) of the backwards-sliding prevention elements (6b) of the second type.
2. Climbing aid (1) according to claim 1, characterised in that, in the lateral regions, the base element (2) has the backwards-sliding prevention elements (6') comprising the push-off wings (8) positioned obliquely to the direction of travel (W) and, in the central region, has the backwards-sliding prevention elements (6") comprising the push-off wings (8) arranged substantially perpendicularly to the direction of travel (W), the push-off wings (8) of the backwards-sliding prevention elements (6') in the lateral regions being arranged at an angle of 30° to 60° to the direction of travel (W).
3. Climbing aid (1) according to either claim 1 or claim 2, characterised in that, in the lateral regions, the base element (2) has the backwards-sliding prevention elements (6') comprising push-off wings (8) positioned obliquely to the direction of travel (W) and, in the central region, has the backwards-sliding prevention elements (6") comprising the push-off wings (8) arranged substantially perpendicularly to the direction of travel (W), the backwards-sliding prevention elements (6) in the lateral regions and in the central region being of equal, in particular substantially identical, design.
4. Climbing aid (1) according to any of claims 1 to 3, characterised in that the base element (2) in lateral regions and/or in the central region has sidewards-sliding prevention elements (6"') extending in the direction of travel (W).
5. Climbing aid (1) according to any of claims 1 to 4, characterised in that the base element (2) is made of a polyolefin material, in particular polyethylene.
6. Climbing aid (1) according to any of claims 1 to 5, characterised in that the backwards-sliding prevention elements (6) comprise ramp elements (7) which slope upwards counter to the direction of travel (W) and each form a push-off wing (8).
7. Climbing aid (1) according to any of claims 1 to 6, characterised in that the base element (2) has at least two longitudinal portions (17) which are preferably connected to each other by a hinge connection (18) in each case, the hinge connection (18) in particular having a connection element (19) which is arranged substantially perpendicularly to the longitudinal direction of the base element (2) and has a higher flexibility than the plastic support material (2'), or, for forming the hinge connection (18), the plastic support material (2') has at least one notch (21) extending preferably over the entire width of the plastic support material (2'), each hinge connection (18) preferably having a plurality of adjacent notches (21).
8. Climbing aid (1) according to claim 7, characterised in that the plastic support material (2') has at least one notch (21) on the inner side and at least one notch (21) on the outer side, more than two notches (21) preferably being alternatingly provided on the inner side and on the outer side of the plastic support material (2').
9. Climbing aid (1) according to claim 8, characterised in that the plastic support material (2') is underlaid by a connection layer (22), which has a lower layer thickness and/or a higher elasticity than the plastic support material (2'), a gap (23) being formed in each case between two longitudinal portions (17) of the plastic support material (2').
10. Climbing aid (1) according to any of claims 1 to 9, characterised in that the base element (2) has at least two longitudinal portions (17) which are connected to each other by a detachable connection, the detachable connection preferably having cooperating positive locking elements (25) which are preferably designed to prevent detaching of the connection in the longitudinal plane of the base element (2) and to allow detaching perpendicularly thereto.
11. Climbing aid (1) according to any of claims 1 to 10, characterised in that an adhesive layer (5) is provided as a fastening means (3) for an adhesive, detachable fastening to the running surface (4) of the ski (1'), an adhesion promoter layer (28), in particular made of a fleece material, preferably being provided between the flexible plastic support material (2') and the adhesive layer (5).
12. Touring ski comprising a sliding board body that has a running surface (4), the running surface, in a climbing position, being detachably connected to a climbing aid (1), characterised in that the climbing aid (1) is designed according to any of claims 1 to 11, the climbing aid (1) extending, in the climbing position, along the ski (1') substantially over the entire width of the ski such that it covers the longitudinal edges of the ski (1').
13. Method for manufacturing a climbing aid (1) for a touring ski, a planar base element (2) being connected on the inner side to fastening means (3) in order to be detachably fastened to a running surface (4) of the ski (1') and is connected on the outer side to backwards-sliding prevention elements (6) acting counter to a direction of travel (W), characterised in that the base element (2) is made from a flexible plastic support material (2') in which the backwards-sliding prevention elements (6) are formed, a film web being produced in a first step, which is processed in a second step by a roller (14) profiled according to the backwards-sliding prevention elements (6) such that, in lateral regions, the base element (2) has backwards-sliding prevention elements (6') comprising push-off wings (8) positioned obliquely to the direction of travel (W) and, in the central region, has backwards-sliding prevention elements (6") comprising push-off wings (8) arranged substantially perpendicularly to the direction of travel (W), and/or, in lateral edge regions, the base element (2) has backwards-sliding prevention elements (6a) of a first type, and, in the central region, has backwards-sliding prevention elements (6b) of a second type, the push-off wings (8) of the backwards-sliding prevention elements (6a) of the first type being of lesser length and/or of lesser height than the push-off wings (8) of the backwards-sliding prevention elements (6b) of the second type.
14. Method according to claim 13, characterised in that the film web is produced by extrusion.
15. Method according to claim 14, characterised in that the film web produced by extrusion is connected to an adhesion promoter layer, in particular made of a fleece material, for application of an adhesive layer (5).

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