EP1493468A2 - Board for gliding sports comprising a bamboo core - Google Patents

Abstract

The bamboo core structure for snowboards and skis has an inner bamboo torsion box (4,11), which is resistant to bending and twisting and is independent of laminates. The interior of the torsion box has vertical core units (8) and longitudinal uncrushed bamboo veneers or bamboo canes cut at an angle. The inner torsion box is embedded within an outer torsion box composed of an upper (9) and a lower (3) strip, and side cheeks (7) which are of an impact resistant but pliable material.. A high tensile metal strip is around the upper edge (14) of the wood ski or board.

Description

The invention relates to a Gleitbrettsportgerät according to the The preamble of claim 1 and a manufacturing method for a sliding board sports apparatus according to the preamble of claim 18th

Skis and snowboards generally consist of a top strap and a lower flange between which a core is arranged is. Depending on the construction consist of the core, the top and the lower chord of wood, or the upper and the lower chord exist from laminates such as fiberglass or carbon fiber construction, the core in this case also made of an elastomeric foam can be made. Because of skis and snowboards a high rigidity expected with the lowest possible weight In recent decades, the constructions have existed made of foamed non-bearing cores with external high-strength laminates the conventional ones Detached wooden structures. For example, in the patent DE 4322300 C2 describes a ski consisting of a foamed Plastic core with an enveloping, bearing Structure exists.

However, such a construction has several disadvantages on. So own the laminated structures in general no good damping properties, resulting in unpleasant vibrations can lead while driving. Furthermore, the used Materials poorly or not recyclable, so these skis and snowboards have a bad eco-balance exhibit. Another disadvantage is that the core is a pure Has filling function, d. H. the weight of the core increases that Total weight without the core contributing to stability the construction makes.

The invention is based on the object, an improved Sliding board sports equipment, in particular a ski, a snowboard, to develop a water ski, a wakeboard or a kiteboard, with the disadvantages of conventional Gleitbrettsportgeräte be avoided and the simplest possible Manufacture and high rigidity improved life cycle assessment and has improved handling characteristics.

The object is with a Gleitbrettsportgerät according to claim 1 and a manufacturing method for such Gleitbrettsportgerät solved according to claim 18.

The invention is based on the physical knowledge, that when choosing a suitable material for the core of the Sliding board sports equipment, such as a ski, snowboards, Water skis, wakeboards or kite boards the damping properties, Improved driving characteristics and life cycle assessment can be.

Advantageously, therefore, there is the core of the invention Slide boarding equipment at least partially made of bamboo. Bamboo is a fast growing, recyclable raw material, which can absorb high tensile, compressive and torsional loads. As a result, both the life cycle assessment and the driving characteristics improved. Furthermore, bamboo is a cheaper Material that is easy to work with. This results advantageously a low-cost production. Furthermore can, because the core can already take load on the laminates either completely dispensed with, or they can in lesser thickness are carried out, which continues the life cycle assessment improved. By reducing or eliminating the laminate layers In addition, the total weight can be reduced.

In a ski according to the invention is through the bamboo construction allowed weight reduction of particular advantage because the ski, in contrast to the snowboard fixed only in one place connected with one leg. Even a slight weight reduction makes a ski especially noticeable because that is relevant for torsional loads of the leg Mass moment of inertia of the ski around the axis of the leg disproportionately is reduced.

In an advantageous embodiment of the invention the core partly or entirely of bamboo slats. The bamboo slats can have a rectangular cross-section or even another Cross section, for example with six or another Number of corners have. So can the bamboo slats For example, be square bamboo sticks, the core next to each other be installed and glued. This construction has the advantage that they produce in a very simple way is. In addition, by the use of massive square bamboo slats achieves maximum rigidity of the core.

Preferably, the core may also or only angularly milled Bamboo tubes include. Angular milled bamboo cans For example, from bamboo tubes with the help of a square milling machine getting produced. This creates a square bamboo stick, the inside has a cavity, wherein the size of the cavity on the size of the cavity used for the manufacture Bamboo tube is dependent. The angle-milled bamboo tubes can in the core next to each other or side by side and on top of each other be arranged so that a certain core cross-section is formed. The advantage here is the weight reduction due to the cavities of the angle-milled bamboo tubes. advantageously, beveled bamboo tubes with a Thickness used, which corresponds to the thickness of the core. this has As a result, the cavities in the construction are right there occur where the least stress of the material too is expected. Are the angle-milled bamboo tubes in Longitudinal side by side in the snowboard, the ski, the Waterski, the wakeboard or kiteboard installed, so can bamboo tubes in the middle with a larger inner Cavity be arranged because in the middle of a lower Load is expected. This way, in addition To save weight.

Advantageously, in the core, a filler lower Density can be arranged as bamboo. This has the advantage that the weight of the core can be reduced. As filler are known foamed plastics or natural products usable.

Advantageously, the Gleitbrettsportgerät has a Layer structure, in which above and below the core a at least partially made of bamboo inner veneer layer is arranged. This veneer layer can be completely or partially consist of square bamboo sticks, for example, zusammengeleimt were. The veneer layers confer in interaction with the Core the snowboard, the ski, the water ski, the wakeboard or the kiteboard a very high rigidity, as in a non-positive connection with the core a torsion-resistant Box arises. Advantageously, the veneer layers Laminate-free attached directly to the core, without a Laminate layer is arranged. This has the advantage that in this area on laminate layers containing the environmental footprint worsen, can be dispensed with. Is an elevated However, rigidity of construction may be desirable Laminate covering around the core or the inner veneer layers to be ordered.

Above and below the core are preferably a Oberund a lower belt arranged, at least partially Bamboo exist. The upper and lower belt increase the Stiffness of the construction, with several if necessary Upper and lower straps can be arranged. Like the inner ones Veneer layers can also be the top and bottom chords a material combination of bamboo with, for example, a laminate and also a combination with other natural materials such as wood is possible to set the strength to specific Increase bodies.

Advantageously, the upper and lower chords are respectively mounted directly on the inner veneer layer. if the inner veneer layers mounted directly on the core are, this results in a stack or sandwich construction, free from laminates yet highly stable is.

Preferably, the bamboo of the core, the lower girth, the Obergurts or the inner veneer layers in the longitudinal direction unpunched. In this case, the longitudinal direction denotes a direction of travel of the ski, the snowboard, the water ski, the wakeboard or the kite board. As a result of shocks in general a tensile force transmission and a thrust transfer difficult is a bumpless construction offers the advantage of a continuous high strength. If but shocks due to constructive Details are needed, they are as possible offset arranged to provide a continuous power transmission in the Ensuring components in the longitudinal direction. To unpolluted To manufacture bottom straps, top straps, cores or inner veneer layers, become square bamboo sticks or bamboo-milled bamboo tubes made of bamboo tubes whose length is greater than is the length of the Gleitbrettsportgerätes to be produced.

Advantageously, sidewalls are arranged laterally of the core, the side of the core or inner veneer layers cover. Preferably, the upper and lower chords are wider than the core with the inner veneer layers and become also positively connected to the side cheeks, eg. glued. This creates a torsion box, which increases the rigidity the construction increased. Sideways means in the longitudinal direction the Gleitbrettsportgeräts next to the core.

Preferably, the core side of the side walls vapor barriers arranged. The vapor barriers lie between the core and the Side cheeks and prevent the entry of water into the Core. Are above and below the core inner veneer layers arranged, the vapor barriers also cover advantageously These veneer layers, around the core and the veneer layers Reliable protection against lateral water ingress. The Vapor barriers may also consist of bamboo, possibly specially treated to be resistant to Water is. Does the bamboo vapor barrier force fit connected with the inner veneer layers, so arises advantageously a box, the torsional stiffness of the snowboard, ski, water ski, wakeboard or of the kite board increased.

In the load introduction area of a fastening device for a binding for attachment of a shoe, the core advantageously, the core special features to the high forces who exercised over the binding on the Gleitbrettsportgerät to record. So the core in the load introduction area Have wood, in particular higher-strength wood species are beneficial. For example, a massive location can Beech wood to be glued. Furthermore, the inner veneer layers, the upper or the lower flange wood for Have force application. The load introduction area can For example, each attachment device a size of about 5 x 5 cm However, it can also be much larger, eg. have a length of 60 cm. If the core is machined from square Made of bamboo can also be a substitute of square burred bamboo tubes through solid bamboo slats in the Load introduction area be advantageous, since thereby the strength can be increased in this area.

To protect the snowboard, the ski, the water ski, the wakeboard or the kite board, the upper girth may be at least partially enclosed with a metallic cover. The metallic cover can be in the area of the upper edge run and, for example, consist of Titanal. Titanal has it the advantage that it has a high resistance to mechanical Has low density attacks.

If according to another variant of the invention in the core adjacent Bamboo parts with respect to the longitudinal direction of Sports equipment alternately opposite growth directions are provided, can provide benefits for increased stability of the core structure.

In an advantageous embodiment of the invention, the bamboo of the core, the inner veneer layers, the lower chord or upper girth of the bamboo genus "Guadua angustifolia" or a similar bamboo genus. Furthermore, the bamboo used for these components preferably has a tensile strength of at least 20 kN / cm ² , 30 kN / cm ² or 40 kN / cm ² , a tensile elastic modulus of at least 2.0 MN / cm ² , 2.5 MN / cm ² or 3.2 MN / cm ² or a fiber length of at least 1 cm. A high modulus of elasticity has the advantage that the Gleitbrettsportgerät is given a high rigidity. A high tensile strength in turn has the advantage that the Gleitbrettsportgerät has a high strength. The higher the strength, the higher the sliding board sports equipment can be loaded. Long fibers increase the resistance and strength of the bamboo.

Preferably, the Gleitbrettsportgerät has a cover layer on, which is arranged above the upper belt. This topcoat protects the underlying layers from mechanical damage Actions, such as beating. The cover layer is preferably at least partly made of bamboo of the genus "Phyllopstachys pubescens "or a similar genus. By using bamboo can be combined with a transparent protective layer an appealing graphical Design of the snowboard can be achieved.

The bamboo used for the top layer should have a Brinell hardness of at least 32 HB. The higher the Brinell hardness of the bamboo, the more resistant the top layer and thus the Gleitbrettsportgerät is against damage from impact or similar mechanical stress. The bulk density of the bamboo used is preferably at least 0.79 g / cm ³ . The higher the bulk density of the bamboo, the higher the packing density of the fibers, whereby the resistance to mechanical action is advantageously increased. Furthermore, the abrasion resistance of the cover layer is higher than 3.7. This achieves a high resistance to mechanical grinding loads.

To protect the surface of the snowboard, the ski, the water ski, of the wakeboard or kite board will be beneficial a protective layer, for example, applied to the cover layer. This protective layer can, for example, from a two-component lacquer or a plastic sealing system and protects the surface from moisture, mechanical effects and UV radiation. Special benefits for protection and the visual appearance of the surface can become arise when the protective layer of a protective oil, in particular Linseed oil is formed. The oil-protective layer can be in the Material penetrate below the surface, leaving a lower Injury probability of deeper layers exists and superficial scratches can be easily corrected.

A manufacturing method for producing a novel Slide board is an independent item the invention.

Fig. 1

den Aufbau eines Ski oder Snowboards unter der Verwendung von Vierkantbambusstäben für den Kern,

Fig. 2

den Aufbau eines Ski oder Snowboards unter Verwendung winkelgefräster Bambusrohre,

Fig. 3

den Aufbau eines Wasserskis, Kiteboards oder Wakeboards unter der Verwendung von Vierkantbambusstäben für den Kern, und

Fig. 4

den Aufbau eines Wasserskis, Kiteboards oder Wakeboards unter Verwendung winkelgefräster Bambusrohre.

Subsequently, the invention will be explained by way of example with reference to the two attached figures. The figures show:

Fig. 1

the construction of a ski or snowboard using square bamboo sticks for the core,

Fig. 2

the construction of a ski or snowboard using angularly milled bamboo tubes,

Fig. 3

the construction of a water ski, kite board or wakeboard using square bamboo sticks for the core, and

Fig. 4

the construction of a water ski, kite board or wakeboard using angle-milled bamboo tubes.

The bamboo used to make a product of the invention Gleitbrettsportgerätes should generally be a Fiber length of at least 1 cm, at a height of not to have grown more than 2000 m over NN 5 years, one maximum residual moisture of 10% after beating stored vertically and over a period of 4 to 6 weeks air-dried, in a cool and dry season beaten and nodes with heavily silicified diaphragms exhibit.

In Fig. 1, the left side of a ski is shown in sectional view. The section runs perpendicular to the longitudinal axis (longitudinal direction) of the ski. The core of the ski shown in Figure 1 consists of bamboo slats 1 having a width of 0.5 cm, a height of 1.5 cm and a length corresponding to the length of the ski. The bamboo slats 1 are made of bamboo of the genus "Guadua angustifolia". The bamboo used to make the bamboo battens of the core should, in addition to the above features, also have at least one of the following characteristics: a tenacity of at least 40,000 m, a tensile strength of at least 40 kN / cm ² , a compressive strength of at least 93 kN / cm ^2, a modulus of elasticity under tensile load of at least 32 MN / cm ^2, a modulus of elasticity at compression stress of at least 16.5 MN / cm ^2, a modulus in flexure of at least 32.5 MN / cm ^2, a bending strength of at least 27 , 6 kN / cm ² or a shear strength of at least 2.2 kN / cm ² .

To make the bamboo slats of the core is dried Bamboo with a minimum length of the raw material of 200 cm, with a circular saw, which has a double saw blade, in the direction of the longitudinal axis in five to eight even Sawing circular sections, which subsequently for further processing be planed on four sides. The circle sections become rectangular slats with dimensions of about 7 cm planed x 3 cm x the length of the raw material. Subsequently The slats are split horizontally, giving them a thickness of 1.5 cm. After this step, the Slats along the longitudinal axis in 0.5 cm wide and 1.5 cm high Sawed off. The product of this step corresponds already the bamboo slats 1 of the core. To material irregularities and for increased stability every second of the bamboo slats 1 is turned, leaving every other lath in a reverse growth direction with respect to the longitudinal direction of the ski comes to rest. Subsequently, 30 of the adjacent bamboo slats with a two-component adhesive under pressure to the actual about 15 cm x 1.5 cm x the length of the raw material long Pressed raw kernels. This raw core is for further processing suitable as a skier. For the production of a snowboard on the other hand, two of these cores will again be under pressure bonded. Subsequently, the resulting raw core Milled with the help of a milling machine, so he used the for the to be produced snowboard required dimensions.

Above and below the bamboo slats 1 are inner veneer sheets 2, 3 arranged. For the production of inner veneer layers 2, 3 bamboo is used, to the same requirements be placed as on the bamboo of the core. Analogous for making the bamboo slats 1 of the core is used for the production of the inner veneer layers 2, 3 bamboo to slats of 7.5 cm x 1.5 cm x the length of the raw material processed. to Production of the inner veneer layers 2, 3 become the slats however sawn along the longitudinal axis in 2.5 cm wide strips. Every second one of the sawed slats is turned, to compensate for material irregularities and then to a 15 cm x 1.5 cm x the length of the raw material gauging Pressed raw plate. For the production of a snowboard Two of the raw plates are again under pressure with each other bonded. From the resulting raw slabs are using a veneer saw veneers with a thickness of about 0.6 to 1 mm cut. Similarly, a top chord 4 and a bottom chord 5 produced.

In order to produce the sandwich construction of the ski, a running surface 6 milled onto the contour of the snowboard is pressed together with contoured steel edges 7 into a shape corresponding to the outer contour of the ski. The steel edges 7 and the tread 6 are generally known in the art. On the tread 6 and the steel edges 7, an approximately 0.2 mm thick rubber layer 8 is glued, with the compound, in particular between the steel edges and the tread can be improved. The further layered structure of the ski consists of the bottom flange 5, the inner veneer layer 2, the bamboo slats 1 of the core, the second inner veneer layer 3, the top flange 4 and a veneer top layer 9. The veneer top layer is produced in an analogous process as the internal veneer layers, however, bamboo of the genus "Phyllostachys pubescens" is used. The bamboo of the upper veneer layer 9 should have a Brinell hardness of at least 32 HB, a bulk density of at least 0.79 g / cm ² and be provided after processing with a protective coating. Each side of the core, a phenolic sidewall 10 is arranged. Above the phenol side cheek, a finishing edge 11 is arranged, which is adapted to the contour of the ski and consists of Titanal. Between the core and the phenol side cheek a vertical bamboo strip is installed. Like the inner veneer layer, this bamboo strip is made of bamboo veneer and serves as a vapor barrier 12. For this purpose, it is pretreated with a protective varnish.

The ski construction, which is completely inserted into the contour shape, is introduced into a heatable vacuum autoclave press and pressed there at a pressure of approximately 5 to 10 kN / m ² . The press is heated for about one minute to a temperature of 150 ° C. At this temperature, a lasting plastic deformation is imposed on the bamboo, giving the ski its final shape. After the one-minute high-temperature phase, the press is cooled to room temperature over a period of 4 to 6 hours.

After pressing and removing the ski from the mold will be By grinding and milling possibly existing adhesive residues removed, the tread sanded and waxed and treat the bamboo surface with a varnish or oil. As a protective oil is a linseed oil with the highest possible Penetration ability used, as it is known from the Boatbuilding is known.

In Fig. 2 is another possible embodiment of the invention shown. Also, Fig. 2 shows a sectional view of a Skis cut perpendicular to the longitudinal direction. The with the Painted reference numerals provided components correspond that shown in Figure 1 and unprimed reference numerals provided components, which is why this is not here will be received again.

The difference of the ski shown in Fig. 2 in comparison to Fig. 1 relates to the construction of the core. The core exists from angular milled bamboo tubes 21 and bamboo slats 1'. The angularly milled bamboo tubes 21 are manufactured, by dried bamboo tubes of the genus "Guadua angustifolia" with a diameter of about 1.2 cm and a wall thickness of about 0.3 cm with the help of a square milling machine to angle milled Bamboo tubes 21 of about 0.85 cm x 0.85 cm x the Length of the raw material to be milled. The resulting angular milled Bamboo tubes 21 will then be together with the bamboo slats 1 'with a permanently elastic two-component adhesive under pressure to a raw core with the dimensions 15 cm x 1.5 cm x the length of the raw material pressed. For use as Snowboard core become two of the resulting raw cores again glued together under pressure to form a double core width of 30 cm. Here was in the load introduction area a binding instead of the angle-milled bamboo tubes 21 to about 60 cm in length bamboo slats 1 'installed. Of the further manufacturing process corresponds to the above in connection with the Fig. 1 described manufacturing process.

The result of the manufacturing process can be a bamboo construction for a snowboard and a ski of all kinds, consisting from an interior, independent of laminates, in itself Bendless and torsion resistant bamboo torsion box. Of the Inner torsion box consists of longitudinally unpunched Bamboo veneers 2, 3 and perpendicular to the inner torsion box standing core elements 1, 1 ', 21, which ideally from longitudinally unpunched bamboo veneers 1, 1 'or angle-milled bamboo tubes 21 exist.

Furthermore, the construction can be used as an outer torsion box being considered in the interior Torsionskasten is embedded and from a top flange 4, a lower flange 5 and the side cheeks 10 consists. The upper strap 3, the lower flange 2 of the inner torsion box ideally made of heavy tensile, compression and torsional loads Materials such as in the longitudinal axis of uncontaminated bamboo veneer. The side cheeks 10 are made of impact resistant, however flexible materials such as phenol, ABS or hardwood.

FIG. 3 shows a further embodiment of the invention. FIG. 3 shows a sectional view of a wakeboard, wherein the section is perpendicular to the longitudinal direction.

The provided with the double-spaced reference numerals Components correspond to those shown in FIG. 1 and uncoated Reference numerals provided components. In again FIG. 1 also shows the ski shown in FIG Wakeboard a core of bamboo slats 1 ", inner Veneer layers 2 ", 3", a top flange 4 ", a bottom flange 5 ", a tread 6" and a cover layer 9 "on.

The tread 6 "is the requirements of water sports adapted, whereby materials can be used here, which are known per se from the prior art. Since that illustrated wakeboard no upper end edge, no phenol sidewall and has no steel edge, is the top layer 9 "running around the edge revolving, allowing them directly to the tread 6 "abuts Upper girth 4 "designed so that it reaches the lower inner Veneer layer 5 "down, with which it is glued Production otherwise corresponds to the production process of in Figure 1 shown and described skis.

In Figure 4 is a cross section through another embodiment a wakeboard according to the invention shown. The with the Reference numerals provided components correspond to those in Figure 3 are shown and with two-part reference numerals are provided. The difference of the one shown in FIG Wakeboards compared to that shown in Figure 3 concerns the construction of the core. The core exists from angularly milled bamboo tubes 21 'and bamboo slats 1 "'The angle-milled bamboo tubes 21' are made as described above in connection with FIG.

The invention is not limited to the above-mentioned embodiments limited, in particular, can be to the same The way skis are made with snowboards. The main difference consists in the larger width of the snowboards. Furthermore, according to the design principle of the kiteboard also water skis or wakeboards be built. In addition, you can Other embodiments of Gleitbrettsportgeräten or other sports equipment of the inventive idea use make and fall within the scope of protection.

LIST OF REFERENCE NUMBERS

1, 1 ', 1 ", 1' ''

bamboo slats

2, 2 ', 2 ", 2' ''

lower inner veneer layer

3, 3 ', 3 ", 3"'

upper inner veneer layer

4, 4 ', 4 ", 4'"

upper chord

5, 5 ', 4 ", 4"'

lower chord

6, 6 ', 6 ", 6"'

tread

7, 7 '

steel edges

8, 8 '

rubber sheet

9, 9 '

topcoat

10, 10 '

Phenol side cheek

11, 11 '

terminal edge

12, 12 '

vapor barrier

21, 21 '

angle-milled bamboo tubes

Claims (23)

Slide board sports equipment, in particular ski, snowboard, water ski, wakeboard or kiteboard, with a core (1, 1 ', 1 ", 1"', 21, 21 '), characterized in that the core (1, 1', 1 ", 1 '", 21,21') consists at least partially of bamboo. Gliding board sports equipment according to claim 1, characterized in that the core (1, 1 ', 1 ", 1"', 21, 21 ') bamboo slats (1, 1', 1 ", 1"') comprises. Gliding board sports equipment according to claim 1 or 2, characterized in that the core (1,1 ', 1 ", 1'", 21,21 ') comprises angularly milled bamboo tubes (21,21'). Gliding board sports device according to one of the preceding claims, characterized in that the core (1, 1 ', 1 ", 1"', 21,21 ') contains filler of lesser density than bamboo. Gleitbrettsportgerät according to any one of the preceding claims, characterized by a layer structure in which above and below the core (1,1 ', 1 ", 1'", 21,21 ') each directly an at least partially made of bamboo inner veneer layer (2 , 2 ', 2'',2''', 3,3 ', 3'',3''') is arranged. Gliding board sports equipment according to one of the preceding claims, characterized by an upper belt (4,4 ', 4'',4''') and a lower belt (5,5 ', 5'',5'''), which at least partially made of bamboo exist and above and below the core (1, 1 ', 1 ", 1"', 21, 21 ') are arranged. Gleitbrettsportgerät according to claim 6, characterized in that the upper flange (4,4 ', 4 ", 4"') and the lower flange (5,5 ', 5 ", 5"') each directly on the inner veneer layer (2,2 ', 2 ", 2"', 3,3 ', 3'',3''') are mounted. Gliding board sports device according to one of the preceding claims, characterized in that the bamboo of the core (1,1 ', 1 ", 1"', 21,21 '), the lower chord (5,5', 5 ", 5"'), the upper belt (4,4 ', 4 ", 4"') and / or the inner veneer layers (2,2 ', 2'',2''', 3,3 ', 3'',3''') is unpunched in the longitudinal direction of Gleitbrettsportgeräts. Gliding board sports device according to one of the preceding claims, characterized by side cheeks (10, 10 ') which have the core (1, 1', 1 ", 1"', 21, 21') and / or the inner veneer layers (2, 2 ', Cover 2 ", 2"', 3, 3', 3 ", 3"'laterally. Gleitbrettsportgerät according to claim 9, characterized in that the side cheeks (10,10 ') on the core side vapor barriers (12,12') have. Gleitbrettsportgerät according to any one of the preceding claims, characterized in that a fastening device is provided for a binding, wherein in the load introduction region of the fastening device of the core (1,1 ', 1 ", 1'", 21,21 ') and / or the inner veneer layers (2.2 ', 2 ", 2"', 3.3 ', 3 ", 3"') have wood. Gleitbrettsportgerät according to one of claims 3 to 10, characterized in that a fastening device is provided for a binding, wherein in the load introduction region of the fastening device of the core (1, 1 ', 1 ", 1"', 21,21 ') of bamboo slats (1 , 1 ', 1 ", 1"') and in the remaining areas of angularly milled bamboo (21,21 '). Gleitbrettsportgerät according to any one of the preceding claims, characterized in that the upper flange (4,4 ', 4'',4''') is at least partially bordered by a metallic cover (11,11 '). Gliding board sports device according to one of the preceding claims, characterized in that the bamboo of the core (1,1 ', 1 ", 1''', 21, 21 '), the inner veneer layers (2,2', 2", 2 "' , 3,3 ', 3 ", 3"'), the upper belt (4,4 ', 4 ", 4"') and / or the lower belt (5,5 ', 5 ", 5''') a bamboo the genus "Guadua angustifolia" has. Gliding board sports device according to one of the preceding claims, characterized in that the bamboo of the core (1, 1 ', 1 ", 1"', 21, 21 '), the inner veneer layers (2,2', 2 ", 2"', 3,3 ', 3 ", 3"'), the upper belt (4,4 ', 4 ", 4"') and / or the lower belt (5,5 ', 5 ", 5"') has a tensile strength of at least 30 kN / cm ² , a tensile modulus of at least 2.5 MN / cm ² , and / or a fiber length of at least 1 cm. Gleitbrettsportgerät according to any one of the preceding claims, characterized by a cover layer (9,9 ', 9 ", 9"'), a bamboo of the genus "Phyllostachys pubescens" and / or a bamboo with a Brinell hardness of at least 32 HB and / or a Bulk density of at least 0.79 g / cm ³ includes. Gleitbrettsportgerät according to any one of the preceding claims, characterized by a at least on parts of the surface of the cover layer (9, 9 ', 9 ", 9"') applied protective layer. A sliding board sports apparatus manufacturing method according to any one of claims 1 to 17, wherein a lower belt (5,5 ', 5 ", 5"'), a core (1,1 ', 1 ", 1"', 21,21 ') and a top flange (4,4 ', 4 ", 4"') are arranged one above the other in an outline shape,
characterized by the steps: Making the core (1,1 ', 1 ", 1"', 21,21 ') at least partly of bamboo, immediate bonding of the lower girth (5,5 ', 5 ", 5"'), the core (1,1 ', 1 ", 1"', 21,21 ') and the upper girth (4,4', 4 "), 4 "'), and Pressing the lower girth (5,5 ', 5 ", 5"'), the core (1,1 ', 1 ", 1"', 21,21 ') and the upper girth (4,4', 4 ", 4 '') under pressure at 150 ° C. Manufacturing method according to claim 18, characterized in that the lower flange (5,5 ', 5 ", 5"') and / or the upper flange (4,4 ', 4 ", 4"') are at least partially made of bamboo. Manufacturing method according to claim 18 or 19, characterized by arranging and bonding an inner veneer layer (2,2 ', 2'',2''', 3,3 ', 3'',3''') between the core (1, 1 ', 1 ", 1"', 21, 21 ') and the top flange (4,4', 4 ", 4"') and / or between the core (1,1', 1 ", 1"', 21,21 ') and the lower flange (5,5', 5 ", 5"'). A manufacturing method according to any one of claims 18 to 20, characterized by using raw sheets having a thickness between 0.5 cm and 3 cm for the core (1,1 ', 1 ", 1"', 21, 21 '), the inner veneer sheets (2,2 ', 2 ", 2"', 3,3 ', 3 ", 3"'), the upper flange (4,4 ', 4 ", 4"') and / or the lower flange (5,5 ', 5 ", 5"'), wherein the raw plates of angularly milled bamboo (21,21 ') and / or bamboo slats (1,1', 1 "," 1 "') are made by gluing. A manufacturing method according to any one of claims 18 to 21, characterized in that the bamboo core is made in alternate directions with respect to the longitudinal direction of the core (1, 1 ', 1 ", 1"', 21, 21 '). Manufacturing method according to one of claims 18 to 22, characterized in that bamboo of the genus "Guadua angustifolia" is used.

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