AT942U1 - SNOWBOARD - Google Patents

Description

AT 000 942 Ul 05e invention relates to a snowboard in flexible multi-part construction.

Snowboards in the above construction are known and have proven themselves · They are always made of the same materials and in the same type of watch as that of

Skis are completely red * manufactured * d «h», they are mostly so-called ί

SandwJch constructions made of wooden core with upper and lower risers made of fiber-reinforced plastic * upper and lower coverings, as well as side walls made of plastic and steel profile edges.

For most snowboards on the market, the net weight without birjdungon is an average board dimension of 1600 mm long,? 30 mm average width and a maximum thickness in the width of 10.5 mm at a good 3,500 kg, which a specific weight that corresponds to boards of 1,200 kg, and 2 was oline consideration of bindings or other structural parts. A solid Holr snowboard would hardly weigh more than roughly the same strength and flexibility * If modern sandwich constructions made of high-quality materials, there is often a great deal of work involved in producing high-strength parts with a painful item weight, such as this in aircraft construction the part is »The know-how and the material for such constructions would actually have been available for some time. In the snowboard sector, it was apparently believed until now that light boards would have a disadvantage "in terms of stability, guidance, smoothness, etc.", which is why all previous snowboards have approximately the same high specific weights of approximately 1,200 kg per liier volume has taken is the tedious task of transporting

Flour-year tests by the hearing aid have, however, clearly demonstrated that many of the supposed advantages of heavy boards in the valley and truth are effectively serious disadvantages. Due to the high nSuing-light " * That means that momentary / heavy boards are difficult to change direction quickly. This is particularly the case with boards that still have relatively heavy Mstal3 reinforcements on the shovel and rear end. The steel edges, which are often felt around the ends, noticeably increase the swing weight. Due to the large mass of heavy boards, vibrations are damped less quickly, which clearly has a negative impact on driving. «D & when driving on a Piston bump, more mass has to move up and down on a heavy board, which means resistance * or otherwise expressed slower sliding causes. A fall triggering with safety binding 3 AT 000 942 Ul represents a more mature board that has become independent and potentially a greater source of danger »because it releases more energy in the event of a collision with a person * so that people can be soldered. In the event of a fall caused by a fall with a safety device, if boards have to be braked using middle stoppers, heavy boards will perform much worse in terms of braking distance. If a fall is triggered in the deep cut, a weighty doard can sink so deep that it is difficult or impossible to find. Should the board even be in a body of water. fall or fall off your feet while wading, the swear board never sinks again in the floods, causing a great loss.

The object of the invention is to largely or completely eliminate the above-mentioned disadvantages.

According to the invention this is achieved in that the snowboard ln flexible Mcfirechichlen construction wise has a specific net weight of at most 0.650 kg per liter of its volume.

Such light boards preferably consist of a light-weight sandwich core of low density, such as honeycomb or fiber-reinforced hard foam, glued to load bearing straps consisting of high-quality GRP carbon fiber, aremid leminates or other high-strength materials. In order to consistently reduce the total weight and the moment of inertia, it is advisable to use the thinnest and lowest possible parts and to apply no or only minimal knowledge of the board codes, if possible made of plastic instead of metal.

An exemplary embodiment of the invention is described in more detail below with reference to the accompanying drawing. Cs show FIG. 1 a cross section through a snowboard in the middle part thereof. At the top is a cover layer as thin as possible as a covering layer 3, preferably in a thickness νοή'Ο, ’ΐ to D, 3 mm” consisting of Λ05 or fiber-reinforced plastic. Immediately below this is the upper Treg belt 3 », preferably consisting of high-strength / fiber-reinforced plastic leminates with a high f-modulus and a thickness of cs. □ ,? mm. In the middle of the cross section, the support core 1 is calibrated with the lowest possible weight / strength

Ratio in terms of shear and compressive strength as a density of 4 AT 000 942 Ul at most 400 kg / ntf. Recommended materials are actual materials such as honeyoomb u? Id barrel-reinforced rigid foams. On the underside of the core, the lower treg belt 2 a'ue of high-strength, fiber-reinforced thermosetting plastic with a thickness of approx. 0.5 mm is attached. at the bottom is the sliding surface 4 made of polyethylene · On the two side edges below are the thinest possible steel edges? with strongly punched-out horizon flanges, which if possible only a small distance over the effective snow contact length of the board IvinausraQen,

On both sides are the side cheeks .5 'from ÄßS,

The construction and materials described above result in a break-proof snowboard of only 2,500 to 2,400 kg in weight with a dimension of 1,600 mm in length and an average of 23 mm in width, which corresponds to an average specific weight of only approx Doardft are common today. Average 50% heavier. In addition to a good construction, a suitable shape and an optimal flex behavior, the extremely light weight of a snowboard is a decisive advantage not only for in-depth skiers, but also for average riders.

A very light board is not only much easier to carry, but it is also quick to react to rapid changes in the curve, low-vibration, fast, less inhospitable »user-friendly and easier to find in the deep or in-depth or above. 5

Claims (2)

AT 000 942 Ul Claims 1. Snowboard in a flexible mud layer construction, characterized by the fact that its specific net * sandwich amounts to a maximum of 0.850 kg per liter of its volume » 2. Snaitooatd according to claim 1 »characterized in that the * average density, the volume of the grain 1 is not higher than 400 kg per ft> 3 · 6