Slideboard

Abstract

A slideboard for sliding on snow has a core (4), a sidewall (2) on the lateral surfaces (10) of the core (4), a base (5) as well as upper reinforcement plies (6) on the upper side of the core (4). The sidewall (2) laterally covers the upper reinforcement plies (6) with its one side (13).

Description

BACKGROUND AND SUMMARY

The invention relates to a slideboard for sliding on snow, in particular a snowboard or a ski, according to the preamble of claim 1.

Slideboards of that kind are well-known (cf. e.g. DE 198 53 265 C1), in which both the upper reinforcement plies and the lower reinforcement plies cover the sidewall on its upper side and/or its bottom side, to which they are glued.

Impact, in particular against the edges of the slideboard, which unavoidably occurs when slideboarding, may gradually lead to delamination or spalling of the upper reinforcement plies.

It is the object of the present invention to prevent delamination of the upper reinforcement plies. According to the invention, this is achieved by the slideboard characterized in claim 1. Advantageous embodiments of the invention are described in the sub-claims.

Thus, according to the invention, the slideboard is designed in such a way that the sidewall laterally covers the upper reinforcement plies. This means that the inner side of the sidewall is flush with the upper reinforcement plies.

The sidewall and the core may be formed as a single piece. In case of a two-piece design, the sidewall likewise covers the core with its inner side.

As a result, both the core and the upper reinforcement plies are protected by the sidewall in case of impact. The upper reinforcement plies are thus prevented from delaminating or spalling from the core.

In order to laterally cover the upper reinforcement plies together with the core, the lateral surface of the core and the lateral surface of the upper reinforcement plies may align with each other.

Instead, the lateral surface of the core may be inwardly offset towards the lateral surface of the upper reinforcement plies, and the inner side of the sidewall may have a preferably stepped recess on its upper edge, with the upper reinforcement plies extending with their lateral surface into said recess.

The lateral surface of the core and the lateral surface of the upper reinforcement plies are preferably flush with the inner side of the sidewall.

The sidewall may, for example, be attached to the core and the upper reinforcement plies by using an adhesive. Due to the preferably stepped recess, the adhesive joint between the upper reinforcement plies and the sidewall is extended and the strength of the joint between the sidewall and the upper reinforcement plies thereby increased accordingly.

If—as is customary—a top sheet, for example a covering film, serving e.g. decorative purposes, is also provided on top of the reinforcement plies, the sidewall is preferably configured in such a way that it laterally covers the top sheet as well.

The sidewall may extend around the entire circumference of the core of the slideboard. It may also laterally cover the core and the upper reinforcement plies as well as, where applicable, the top sheet only in specific sections, for example in the tip and/or end section and/or middle section of the board. In addition, the sidewall may only be provided on the two lateral surfaces of the core.

Skis, in particular freestyle skis, may thus be provided with a sidewall in sections, in particular in front of and behind the binding, with the sidewall covering with its inner side the core and the upper reinforcement plies, because, in case of jumps in which a freestyle skier crosses both skis in midair, the skis are subjected to particularly heavy wear and tear at these points.

The sidewall may be made of preferably impact-resistant plastics, for example acrylonitrile butadiene styrene or polyurethane, but also of preferably laminated wood, in particular hardwood, or of metal, for example an aluminum material.

In addition to the upper reinforcement plies, the slideboard preferably has lower reinforcement plies between the core and the base, which may also extend between the bottom side of the sidewall and the base of the slideboard to the outer side thereof, where applicable.

The upper and lower reinforcement plies may, for example, be made of fiber-reinforced and/or impact-resistant plastics, such as acrylonitrile butadiene styrene, polyurethane, metal and/or wood.

In relation to the upper reinforcement plies and, where applicable, the top sheet, the sidewall may slightly protrude upwardly on its inner side, for example not more than three or four millimeters. This protrusion may also be due to production-related reasons, for example if the slideboard is produced using a wet lay-up process, in which the upper reinforcement plies and, where applicable, the covering film, which cannot be cut accurately to size with this process, are laminated onto the upper side of the sidewall. The upper reinforcement plies are then removed from the sidewall, where applicable together with the covering film, for example by shaping, wherein, during the shaping process, the covering film with the upper reinforcement plies is usually removed to a greater extent in the edge region towards the sidewall than the sidewall so that said protrusion is formed.

In particular when prepregs, which can be cut accurately to size, are used for the upper reinforcement plies, the upper reinforcement plies and, where applicable, the top sheet may be flush with the upper side of the sidewall.

DESCRIPTION OF THE DRAWINGS

The invention will be described in more detail below by way of example with reference to the enclosed drawings, in which:

FIG. 1 shows a top view of the slideboard (snowboard); and

FIGS. 2 to 4 a cross section through a longitudinal half of the slideboard along the line A-A of FIG. 1 according to another first embodiment of the invention respectively; and

FIG. 5 a top view of a pair of skis.

DETAILED DESCRIPTION

According to FIG. 1, the slideboard 1 has a sidewall 2 extending around the entire circumference of the slideboard (snowboard), with the sidewall 2 surrounding the top sheet 3 in the top view according to FIG. 1.

According to FIG. 2, the snowboard has, in addition to the sidewall 2 and the top sheet 3, a core 4 which is made, for example, of laminated wood, a base 5 as well as upper reinforcement plies 6 on the upper side of the core 4 and lower reinforcement plies 7 between the core 4 and the sidewall 2 as well as the base 5, with the base 5 being surrounded by a steel edge 8.

Whereas, according to FIGS. 2 and 3, the lower reinforcement plies 7 extend below the sidewall 2 to the outer side of the slideboard 1, the sidewall 2 laterally covers with its inner side 13 both the core 4 and the upper reinforcement plies 6, including the top sheet 3.

According to FIG. 2, the lateral surface 10 of the core 4, the lateral surface 11 of the upper reinforcement plies 6 and the lateral surface 12 of the top sheet 3 align with each other for this purpose, with the inner side 13 of the side wall 2 being flush with the lateral surfaces 10 to 12.

According to FIG. 3, the lateral surface 10 of the core 4 is inwardly offset towards the lateral surface 11 of the upper reinforcement plies 6 and the lateral surface 12 of the top sheet 3. For this purpose, the inner side 13 of the sidewall 2 has a recess 14 on the upper edge, with the upper reinforcement plies 6, including the top sheet 3, extending with their lateral surfaces 11, 12 into said recess 14 in such a manner that they are flush.

The sidewall 2 is attached to the core 4, the upper reinforcement plies 6, the top sheet 3 and the lower reinforcement plies 7, for example by using an adhesive.

According to FIG. 4, the recess 14 is formed as a step on the inner side 13 of the sidewall 2 above the core 4, with the upper reinforcement plies 6 extending to the step and the top sheet 3 extending on top of the step to the inner side 13 of the sidewall 2.

Whereas, according to FIG. 1, the sidewall 2 extends around the entire circumference of the slideboard and the snowboard 1 respectively, the sidewall 2 may only be provided at specific points of the slideboard which are subjected to particularly heavy wear and tear. As shown by the dashed lines in FIG. 1, only the tip section S, the end section E as well as the sections B1 and B2 in the region of the bindings on both sides of the snowboard 1 may, for example, be provided with a sidewall 2.

In contrast, for example in case of a pair of freestyle skis F1 and F2 as shown in FIG. 5, the sidewall 2 may be provided with a sidewall section 2 only in the region of the tips S and E as well as in the region X1 and X2 in front of and behind the ski binding X on both sides of each ski F1 and F2 or at least on the opposite inner sides, because the skis, as illustrated by the ski F2 (dashed line), may collide in these regions, for example when jumping in the air and crossing the skis.

Claims

1. A slideboard for sliding on snow having a core (4), a sidewall (2) on lateral surfaces (10) of the core (4), a base (5) and upper reinforcement plies (6) on an upper side of the core (4), characterized in that the sidewall (2) laterally covers the upper reinforcement plies (6) with its inner side (13).

2. A slideboard according to claim 1, characterized in that the sidewall (2) laterally covers with its inner side (13) both the core (4) and the upper reinforcement plies (6).

3. A slideboard according to claim 1, characterized in that the core (4) and the sidewall (2) are formed as a single piece.

4. A slideboard according to claim 1, characterized in that the upper reinforcement plies (6) are provided with a top sheet (3) which, together with the upper reinforcement plies (6), is laterally covered by the inner side (13) of the sidewall (2).

5. A slideboard according to claim 1, characterized in that the sidewall (2) has a recess (14) on its inner side (13) above the core (4), with the upper reinforcement plies (6) extending with their lateral surface (11) into said recess (14).

6. A slideboard according to claim 4, characterized in that the sidewall (2) has a recess (14) on its inner side (13) above the core (4), with the upper reinforcement plies (6) with their lateral surface (11) and the top sheet (3) with its lateral surface (12) extending into said recess (14).

7. A slideboard according to claim 5, characterized in that the recess (14) formed as a step (15) in the sidewall (2) above the core (4) is, with the upper reinforcement plies (6) extending to the step (15) and the top sheet (3) extending on top of the step (15) to the inner side (13) of the sidewall (2).

8. A slideboard according to claim 1, characterized in that the sidewall (2) protrudes upwardly in relation to the reinforcement plies (6).

9. A slideboard according to claim 4, characterized in that the sidewall (2) protrudes upwardly in relation to the reinforcement plies (6) and the top sheet (3).

10. A slideboard according to claim 1, characterized in that the sidewall (2) extends around the entire circumference of the slideboard (1).

11. A slideboard according to claim 1, characterized in that the sidewall (2) extends around ends and portions of the longitudinal sides (S, E, B1, B2, X1, X2) around the circumference of the slideboard (1, F1, F2).

12. A slideboard according to claim 1, characterized in that the core (4) is at least partly made of wood.

13. A slideboard according to claim 1, characterized in that the sidewall (2) is made of at least one of plastic, hardwood, and metal.