Textile sliding surface for ski and toboggan applications

Abstract

Disclosed is a textile sliding surface with a functional layer (1) and a base layer (2), which are connected to each other by filament yarns. The functional layer (1) is formed of pile loops, whereby the height of the pile loops in the functional layer (1) has a height (4), depending on the sport, in the range 4-1 4 mm and the functional layer (1) has 400-2400 pile loops per dm.sup.2. The yarns are bound into the base layer (2) in the lower part of the pile loops by W-bonds (10).

Claims

1. A textile sliding surface with a functional layer and a base layer, which are connected to one another by filament yarns, the functional layer being formed from the pile loops, characterized in that the height of the pile loops in the functional layer has a height, depending on the type of sport, in the range 4-14 mm and the functional layer has 4002400 pile loops per dm.sup.2, and the yarns in the lower part of the pile loops being bound into the base layer by W-bonds-(4-0).

2. The textile sliding surface according to claim 1, wherein the pile loops in the functional layer have a height in the range 0.5-4 mm and 400-2400 pile loops per dm.sup.2.

3. The textile sliding surface according to claim 1, with an overlap point with pole loops at a lower height.

4. The textile sliding surface according to claim 1, in which the functional layer is made of a monofilament yarn based on a plastic PET (polyethylene terephthalate), PBT (polybutylene terephthalate), PP (polypropylene) or PA (polyamide).

5. A textile sliding surface according to claim 1, further comprising a backing.

6. A textile sliding surface according to claim 5, wherein the backing is made of a nonwoven fabric or wood.

7. The textile sliding surface according to claim 1, wherein grooves have been formed in the sliding surface.

8. A ski or toboggan run made of a textile sliding surface according to claim 1.

Description

[0037] The invention is described in more detail below with reference to the drawings:

[0038] Showing:

[0039] FIG. 1 a schematic cross-section of the mat;

[0040] FIG. 2 a top view of the mat; and

[0041] FIG. 3 a schematic cross-section of the joint between the mats.

[0042] As shown in the drawings, the textile in a mat consists of a functional layer 1 and a base layer 2.

[0043] The functional layer 1 has one or more pile loops 3 made of a fiber or filament yarn of synthetic fibers. These yarns are optimized for friction pairing with the PE coating of the ski. Thus, a snow-like coefficient of friction (also called coefficient of friction) of <0.1 is achieved. According to the invention, a plastic based on PET (polyethylene terephthalate) has proven to be the best friction partner. Other plastics with optimized friction, for example based on PBT (polybutylene terephthalate), PP (polypropylene) or PA (polyamide), can also be used.

[0044] The base layer 2 also comprises a textile material and forms a dense fabric (for example by means of a rep weave) which supports the functional layer 1 and stabilizes the pile loops by clamping or binding (between the warp, binder and weft threads) by means of a form fit. For example, a W-binding 10 is used here, which prevents the pile loops of the functional layer from tilting sideways due to another small loop or deflection in the base fabric (W-shaped course of the pile yarn). The pile loops of the functional layer 2 can be designed with a loop height 4 of 0.5 mm to 4 mm (mainly luge application) or 4 mm to 14 mm (ski application) in order to meet the sport-specific requirements. The higher the requirements for edge grip of the alpine ski or cross-country ski, the higher the pole loops should be. Low pole slings are advantageous for tobogganing applications.

[0045] A variation of the loop heights 4 is possible both in longitudinal 5 and transverse 6 direction of the textile. The distances between the pile loops (7 & 8) can also be varied between 1.5 mm and 20 mm to form patterns on the surface. This results in a loop density of 400-1200 pile loops/dm.sup.2, for toboggan applications even up to 2400 pile loops/dm.sup.2.

[0046] The material thickness of the pile yarn in the pile loops is 0.5-1.2 mm. Yarns of different thicknesses can be used alternately. For the application in the tobogganing sector and for processing on the machine, for example, the continuous use of yarn of thickness 0.7 mm has proved to be optimal. For optimal edge grip, a mixture of ⅕ monofilament yarn with high thickness (strength) in the range 0.9-1.2 mm and ⅘ monofilament yarn with low thickness 0.5-0.7 mm is used.

[0047] By varying the loop heights 4 it is also possible, for the purpose of joining larger areas, both longitudinally 5 and transversely 6, to create an overlap point 11 at the outer edge of a module of the mat where a first mat 12 effectively has no pole loops (or an absolute minimum loop height), while the loop height 4a of the second mat 13 is reduced in this area by the thickness of the base layer.

[0048] A new production method (weaving technology) makes it possible to produce the multitude of parameters and product properties in one production step. This eliminates the need to rework the fabric to achieve the desired functions, which is familiar from previous products. The possibilities of the machine with regard to fast adjustment of loop height, loop density and patterning, as well as their variation within a product, are optimally utilized. Mat preparations can be implemented up to 4 m. The only restriction on the length of the mat is transport.

[0049] The weaving technique enables the production of the complete mat including connection features in one step. Here, only the individual yarns for the fabric are used as the starting material. These can be applied directly to a machine and woven into the mat. Both the base layer 2 and the pile loops 4 of the functional layer 1 are formed in the process. The material of the base layer 2 is mainly unwound from warp beams. The material of the functional layer 1 is preferably obtained from single bobbins for easier patterning and adjustment of the material properties. It is possible to insert several wefts on top of each other, thus creating the possibility of a greater product variety and property integration compared to previously known products, as the layer structure of the base layer 2 is significantly more variable. For the production of the mat including all properties, no further intermediate steps or production steps in pre- or post-processing are necessary.

[0050] In the 1st embodiment example, the mat comprises a base fabric 2 based on polypropylene fibers, which are used as binding and filling warp threads, as well as weft threads. The functional layer 1 is a pile fabric made of a monofilament yarn of 100% PET with the following construction parameters: [0051] Yarn thickness 9: 0.7 mm [0052] Loop height 4: 10 mm [0053] Basis weight: 900 g/m2 [0054] Loop density: 600/dm.sup.2

[0055] The mat is used for the ski school application. An underlay, which is additionally placed under the mat for protection against damage and for better drainage, consists of a layer composite of non-woven materials and plastic tangles. The overlapped mats are fastened by means of a metal sheet that is anchored to the subsoil with ground screws. Self-tapping sheet metal screws are screwed into the sheet metal through the overlap 11 of the mats in such a way that the screw heads lie far below the surface of the mat and thus have no influence on the use of winter sports equipment.

[0056] In the second embodiment example, the mat also comprises a base fabric based on polypropylene fibers. The functional layer 2 is a pile fabric made of monofilament yarn of 100% PET with the following construction parameters: [0057] Yarn thickness 9: ⅘ of the pole loops 0.7 mm; ⅕ of the pole loops 0.9 mm [0058] Loop height 4: 14 mm [0059] Basis weight 980 g/m2 [0060] Loop density: 500 pole loops/dm.sup.2.

[0061] The mat is used for professional training in skiing. For example, the mat is screwed directly onto a wooden substructure. In this way, the mats can be screwed directly into the base material through the overlap. A connection via a sewn-on Velcro tape or an attached magnetic solution is also conceivable.

[0062] In the third embodiment example, the mat comprises a base fabric 2 based on polypropylene fibers. The functional layer 1 is a pile fabric made of monofilament yarn of 100% PET with the following construction parameters: [0063] Yarn thickness (9): 0.7 mm [0064] Loop height (4): 0.7 mm [0065] Basis weight 360 g/m2 [0066] 1200 pole loops/dm.sup.2.

[0067] In this example, the mat is used as a toboggan run or run-up track for skis with a separate guide strip, taking advantage of the good trapability of the textile in the mat to mold it into the shape of a guided bobsleigh run and form both the sliding surface and the gang with the same surface. A similar principle is used when used as a classic cross-country ski track.

[0068] In addition to screwing, it is also possible to glue the material to various substrates.