EP1291043A1 - Sliding body, in particular a ski and method for producing same - Google Patents

Abstract

The sliding body has actively oscillating areas which have a mathematically calculated relief structure with actively oscillating particles in the form of fine metal powder which are mixed into a screen printing ink and printed onto the surface of the sliding body or ski (1) . The printed surface is printed onto the reverse side of the supporting belt in a calculated pattern.

Description

The invention relates to a sliding body, in particular one Alpine, jump or cross-country skis, as well as snowboard, but closes also general equipment and vehicles for snow ice or water sports and the purpose of the vibration behavior of such sliding bodies to improve over known sliding bodies.

Another object of the invention is a method for the production of a sliding body, preferably a ski.

Finally, the invention also relates to a method for producing a ski with a sliding body according to the To create invention.

Through European patent application No. 95 908 279.3 it has become known on sliding bodies, e.g. Ski, in certain targeted mathematically calculated room or surface areas to apply vibration-active particles to a superimposed To achieve the effect of the resonance frequency spectrum or natural frequency spectrum changed in that, in relation to skis, e.g. an increase in the number of natural frequencies in a specific Frequency range, and / or the creation of new natural frequencies is achieved, which when used on skis Targeted running and sliding properties as well as maneuverability can be improved.

This can be done according to European patent application no. 95 908 279.3 can be achieved, for example, in that these mathematically calculated areas in the form of a lacquer coating with metal content on the surface and / or individual intermediate layers, like upper / lower flange, on the sliding body, in particular Ski to be applied.

WO 95/21663 A1 is a sliding body with a Surface layer has become known, of which at least one Section is provided with a lacquer coating, which is vibration active. The well-known painting process has the Disadvantage that unwanted areas have to be taped off, what is first painted, for example by spray painting, electrostatics, Dip painting, pour painting or the like. whereupon these foils have to be peeled off.

The object of the present invention is particularly simple and effectively those described in the prior art To strengthen properties significantly.

According to the invention, this object is achieved by the measure the characterizing part of claim 1 solved. The screen printing process has the advantage that by producing the sieve these partial areas are inherently just a printing process can be coated, and the further advantage of painting is that a lower viscosity of the coating material than is necessary for screen printing, i.e. you can use the screen printing process a higher mass density with a higher degree of filling through, for example, metal powder and thus a better one Make an impact.

The measure according to claim 2 ensures that the relief is exactly congruent with the vibration nodes of the Fundamental vibration as well as the developing natural vibrations matches.

By the measure according to claim 3, the used Metal powder particularly simple and with a high degree of filling in mix in the color.

By the measure according to claim 4, a high local Mass concentration reached, which has a very strong functional effect is achieved.

The measure according to claim 5 is the congruence of the relief with the vibration nodes of the basic vibration as well as the developing natural vibrations hedged.

By combining the measures according to the requirements 6 and 7, the effect can be optimized like a ski type.

The measure according to claim 8 is a particularly good one Wear protection attainable, so that the effect through on natural Way of surface wear is affected.

The measure according to claim 9 is a particularly simple one Production of the relief, especially in the development phase possible because no elaborate milling work for Mold covers must be carried out.

The measure according to claim 10 becomes essential The effect is intensified because the relief has an additional effect Mass accumulation.

The measure according to claim 11 is particularly high Reproducibility achieved in large series production. Furthermore, is no additional work, e.g. through subsequent Embossing the structure on the surface, required.

In the following, the invention will be explained in more detail with reference to the drawings explained.

Fig. 1 eine Draufsicht auf einen Ski, an dem die mathematisch berechneten schwingungsaktiven Bereiche anhand schwarzer Linien erkennbar sind;

Fig. 2 eine zufällig gewählte Konstruktion und Ausführungsform; und

Fig. 3 einen Querschnitt der Oberfläche im Detailaufbau.

Show it:

1 shows a plan view of a ski on which the mathematically calculated vibration-active regions can be identified using black lines;

Fig. 2 shows a randomly chosen construction and embodiment; and

Fig. 3 shows a cross section of the surface in detail.

In Fig. 1 are the mathematically calculated on a ski 1 vibration-active areas 7 'can be seen from the black lines. The neighboring white areas are compared schwingungsinaktiv.

Fig. 2 shows a perspective view of any one Area of the ski 1 from FIG. 1 in a basic representation. This ski consists of steel edges 1, an outsole 2, one Lower flange 3 made of resistant material, side edges 4, one Core 5, an upper chord 6 made of resistant material, and the relief-like surface according to the invention 7, in reality the raised areas 7 'of the relief-like Surface 7 is geometrically congruent in the top view with the black areas 7 'of the ski 1 from FIG. 1.

1 and 2 are randomly selected Construction and embodiment to fundamentally the invention to explain. Of course there are various Constructions conceivable that are used in modern ski construction and are accordingly known to the technical expert.

Fig. 3 shows a cross section of the surface 7 in detail in a basic representation, being hatched by the Areas 8 show the vibration-active masses are. These can be printed, for example, in a simple form of high metal filled ink in the screen printing process before Ski assembly can be printed on the back of the surface.

This measure according to the invention for the surface of the Sliding body can be applied in an analogous manner to any intermediate layer of the sliding body, especially skis, such as e.g. Tread, top flange, Use the lower chord etc. According to another characteristic of Invention has been found to be the sole training the surface, as according to the European patent application No. 95 908 279.3 methematically calculated relief without additional Use of vibration-active masses, changes already of the resonance frequency spectrum of the sliding body were achieved because solely through the corresponding relief areas with higher mass compared to the neighboring areas. This can e.g. achieved by an embossing process on the finished product be, or in an even simpler manner by appropriate Formation of the mold cover, what happens during the pressing of the Sliding body, especially the ski, a subsequent stamping process equals. Furthermore, in particularly effective and cost-saving way when pressing the sliding body between Surface and in this case smooth mold cover one, afterwards removable and accordingly reusable, Intermediate layer made of thermoplastic, thermosetting film, if necessary Paper or similar, which is the counter profile of the desired one Reliefs, and thus acts as a stamp.

Claims (11)

Sliding bodies, in particular skis, with vibration-active areas, which have a relief-like structure with vibration-active particles, characterized in that the vibrating particles are mixed into a screen printing ink and printed on the surface of the sliding body using the screen printing process. Sliding body according to claim 1, characterized in that the relief-like structure is mathematically calculated. Sliding body according to claim 1, characterized in that the vibratable particles are mixed into the screen printing ink as a fine metal powder. Sliding body according to claim 3, characterized in that the vibratable particles are mixed with a high degree of filling in the screen printing ink. Sliding body according to one of the preceding claims, characterized in that the screen printing ink is printed in a calculated raster using the screen printing process. Sliding body according to at least one of the preceding claims as a tread covering, characterized in that at least one of the surfaces of the tread covering, preferably the back of the same, is printed. Sliding body according to at least one of the preceding claims, which is designed as a ski with carrying straps, characterized in that the carrying strap is printed on at least one side in a calculated grid with the screen printing ink. Sliding body according to at least one of the preceding claims, which is designed as a shell ski, characterized in that at least the back of the surface of the shell is printed with a screen printing ink in a calculated raster using the screen printing method. Method for producing a sliding body, in particular for skis, according to at least one of the preceding claims, characterized in that between the sliding body, for example a ski and a mold cover, intermediate layers, for example based on thermoplastic film, thermosetting film, paper or the like. be inserted. Sliding body according to at least one of claims 1 to 8, in particular for skis, characterized in that those areas which are coated with the vibratable mass, based on a plane surface, are raised, and those areas in which no vibratable mass is applied , based on this planned surface, are deepened. A method for producing a ski with a sliding body according to claim 10, characterized in that the relief is already incorporated in the mold cover.

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