FI83039C - TERRAENGSKIDA. - Google Patents

Description

1 83039

Murtomaasuksi

The invention relates to a fracturing ground provided with a sliding surface made of an artificial material, in which a sliding edge of the synthetic material is optionally arranged at least on one edge of the sliding surface.

Usually in fracture joints, the sliding surface is made of a highly sliding, mostly thermoplastic synthetic material, in which case either the sliding surface coating material extends to the edges of the sliding surface 10 or separate light sliding edges of the synthetic material are arranged on these edges.

In addition to the conventional skiing technique, where both skis ski essentially in the direction of the piste, experienced skiers, especially cross-country skiers, 15 increasingly use the skating step technique (Siitonen step), where one ski slides on the piste while the skier puts the other ski in front - supported by heavy rod use - gets the push needed.

20 On steep slopes where the usual climbing aids or the Siitonen step does not provide the necessary thrust, both cross-country skiers and less experienced skiers use a so-called fork in which the scissor position (ie both skis are sloping outwards) where the extent of the scissor position and the use of the edge are determined by the slope of the slope and the quality of the snow.

When using the so-called Siitonen step as well as the crotch-30 run, there is a risk that the sliding surface made of the active edges or possibly the sliding edge of the artificial material fitted therein will be damaged by pushing or friction with the surface and especially with the upper edges of a pair of other skis.

35 2 83039

The object of the invention is to produce a light fracture earth with a sliding surface made of artificial material, in which a sliding edge of synthetic material is arranged on at least one edge of the sliding surface, in which the sliding surface 5, especially at the edges or possibly fitted with artificial sliding edges, is protected from damage by the surface

This is achieved according to the invention by providing at least one protective strip arranged behind the binding area only, extending substantially to the end of the ski and projecting diagonally over the upper surface of the ski in a manner known per se, and that the hardness of the protective strip material is lower than the sliding surface 15 hardness.

However, in connection with ski skis, protective strips are known which protrude over the upper surface of the ski. However, these protective strips, or at least some of them, extend over the entire length of the ski and act to protect the upper edges and the surface of the ski 20, in particular from damage in ski skis by conventional steel upper edges.

In fractures, there is less risk of damage to the top edges of the ski by the edges of the sliding surface than rather risk of damage or wear of the active material at the edges of the sliding surface from pushing or friction on the surface and at the top edges of the other ski when using the Siiton step or crotch.

Only a protective strip fitted to the back of the ski provides weight advantages over protective strips fitted to the entire length of the ski, and is perfectly sufficient to protect the edges of the slip surface of the second ski, as both the Siitonen step and the crotch only comes into contact with the second upper ski area of the second ski 35.

3,83039

Suitable materials for the protective strips are all materials which, on the one hand, are softer than the active material at the edges of the sliding surface in order to protect them from damage and, on the other hand, do not themselves wear too much by the edges of the sliding surface. Hardness is then understood to mean static, technical hardness, which can be detected by the brinell hardness test method. Preferably, according to a preferred feature of the invention, elastomeric working materials are suitable for the protective strip 10. But also thermoplastics and blends that are softer than, for example, a sliding surface made of polyethylene can be used.

In order to save weight, according to a preferred feature of the invention, it is only necessary to form one guard strip extending substantially along the edge of the upper surface facing the second ski of the pair. The protective strip fitted in this way provides approximately complete protection against damage to the edges of the sliding surface of the active material and hardly adversely affects the weight of the fracture paint.

20 But it is also possible that two symmetrically arranged protective strips have been formed.

The invention is described in more detail below with the aid of application examples shown in the figures of the drawings.

Figures 1 and 2 show a top view of an application example of the left 25 and the right cross-country ski, respectively, and Figure 3 shows two partial cross-sections between the ski head and the ski tie of the other two application examples.

The fractures shown in Fig. 1 with a non-shown sliding surface of an active material, for example polyethylene, each have a protective strip 1 protruding diagonally over the upper surface 5 of the ski, running behind the binding area 2 to which the ski shoe 4 is schematically described, up to the ski end 3 and fitted 35 tu to the edge of the upper surface 5 facing only the second ski only.

4,83039

According to the invention, the edges of the Liu-5 cup, which in each case is made of a softer surface, are excellently protected against damage due to the crossing of the ski heels. or at the crotch without substantially adversely affecting the weight of the ski. The protective strip 1 consists of an elastomeric material and 10 itself hardly wears at all.

In order to achieve even better protection of the sliding surface of the active material, two diagonal protective strips 1, 1 'can also be arranged on the ski, as described in Fig. 2.

Figure 3 shows in each case a partial cross-section of two application examples of a fracture paint according to the invention.

An upper zone 8 or a lower zone 9 of Glasroving elastic material is in each case arranged above and below the multi-part core 6,6 ', 6 "and the side sides 7 of the wood.

In the left application example, a separate sliding edge 10 is formed of ABS plastic, which forms the side edge 11 'of the polyethylene sliding surface 11, while in the right application example, the sliding surface coating extends to the edge 11' of the sliding surface 11.

The protective edge according to the invention made of elastomeric material is in the upper application example in the upper zone 8 and protrudes upwards over the adjacent upper surface 5 of ABS plastic. But the protective edge 1 can also be - as shown on the right in Fig. 3 - attached to the upper surface 5 itself, for example glued. The protective edge 1 can then be self-adhesive and thus, in the event of damage due to extreme loads, such as could occur, for example, in the event of a fall, can be easily replaced.

5 83039 Such a self-adhesive protective edge can also be glued to otherwise unchanged fracture surfaces on the surface afterwards to protect the edges of the sliding surfaces formed of the active substance.

The invention is not limited to the application examples shown. It is possible to change both the shape and material of the protection strip and the quality of the connection with the ski without departing from the scope of the invention. For example, protection strips rectangularly or triangularly profiled can also be formed. In addition, protective strips can be attached to ensure good grip on the ski, e.g. in grooves in the bottom of the ski.

15 20

Claims (5)

6 83039 A fracture slip with a sliding surface made of an active material, in which at least one edge of the sliding surface is provided with a sliding edge of the active material, characterized in that at least one sliding edge is provided, only up to the end (3) of the ski. a protective strip (1) running in a manner known per se and projecting spherically over the upper surface 10 (5) of the ski, and that the hardness of the material of the protective strip (1) is lower than the hardness of the material at the edges (11 ') of the sliding surface (11). A cross-country ski according to claim 1, characterized in that only one protective strip (1) is formed, which extends substantially along the edge of the upper surface (5) facing the second ski of the pair. Cross-country ski according to Claim 1, characterized in that two protective strips 20 (1,1 ') are arranged symmetrically with respect to the longitudinal axis of the ski. Fracture ski according to one of Claims 1 to 3, characterized in that the protective strip (1) consists of an elastomeric material. Breaking suit according to one of Claims 1 to 4, characterized in that the protective strip (1) is attached to the detachable ski and is preferably self-adhesive. 7 83039