ES2925400A1 - SPORTS BOARD (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Sports table, comprising a platform (2) that defines the surface of the table, made of a thin carbon sheet with a high flexibility index; and an exoskeleton-like structure (3), also made of carbon fiber, which is integrated into the platform (2) using co-curing techniques, forming a straight spine (31) that runs longitudinally through the center of the platform. table (1) and a series of ribs (32) that, starting from the vertebral column (31), run to an area close to the lateral edges of the platform (2), providing the table (1) with the necessary structural rigidity for the sports practice in question. (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

sports board

Technical sector

The sector in which the invention falls is that of the manufacture of boards for practicing sports, such as skateboards (also known as skateboards), scooters (in Spain, skateboards provided with a steering bar), skateboards for snow (skis, snowboard,...) or nautical boards for surfing, water skiing, wakeboarding, paddle surfing, etc.

The invention refers in general to sports boards, for any of the modalities indicated above, in any of which a platform is necessary that normally must be thin, resistant and light.

State of the art

There are numerous types of boards used for sports that are made from solid board structures. Although depending on the nature of the sport they present different shapes and dimensions, all of them have in common that they present a substantially flat surface, which is normally formed by laminating multiple layers of natural and/or artificial materials in a composite material that is strong, elastic and flexible. . Although these boards have achieved wide acceptance, they suffer from drawbacks in terms of strength, weight, and durability.

For example, skateboard decks were originally constructed from laminated wood, although over time various attempts have been made to obtain stronger decks, using alternative materials and technologies, such as composite materials; and so US2020246677A1 describes a sports board or skateboard that has a platform on which the trucks of the skateboard are mounted, which can include at least one central part of aluminum, between layers of carbon nanotube fiber, fiberglass fabric and covered with a soft outer shell. Document US2011206895A1 describes a snowboard with an elongated body including a core formed by a metal rib extending the length of the board, which is embedded in a layer of carbon fiber.

US7138027B1 describes a laminated deck for a skateboard comprising a plurality of layers of graphite cloth alternating with a plurality of layers of laminated resin.

US2003102650 describes a sports table of the indicated types that uses a composite material of two structural layers joined on each side of a light and flexible core. The structural layers are made of a strong and resistant material composed of an embedded natural fiber matrix, made from grasses such as bamboo, or hemp.

There have also been attempts to make skateboards and other boards out of carbon fiber, but the problem with these skateboards is that most skaters don't like boards that have too much flex. For this reason, most boards made of composite materials have a core or internal structure made of metal materials, wood or natural fibers, even though carbon fiber boards are lighter, which makes it easier for them to exercise their muscles. tricks and skills

Explanation of the invention

Based on the prior art, an object of the present invention is to provide a board made entirely of carbon fiber with epoxy resin.

In order to achieve the proposed objectives, mentioned in the previous section, the invention proposes a board for various sports articles, which has the characteristics of claim 1. More specifically and as we indicated in the previous point, the main characteristic of the invention is that a lighter, more elastic and flexible board is achieved than a conventional board or a board made with structures of metallic materials or other composite materials.

To do this, this table has a platform that defines the useful surface of the table, which is made of a thin sheet of carbon fiber with a high rate of flexibility and elasticity; in which an exoskeleton-like structure is integrated, also made of carbon fiber, but with greater structural rigidity to allow the sport in question, but without increasing the weight or certain desired flexibility or elasticity characteristics.

Said exoskeleton has a spine-like configuration with a series of lateral ribs that, starting from said column, run to an area close to the lateral edges of the platform. Said exoskeleton protrudes from the platform on the lower or upper face, depending on the application of the sports board.

With this material, on the one hand, a thin, flexible and elastic board is formed, and on the other, an exoskeleton-like structure, which normally protrudes from one of the sides of the board, which not only avoids the excessive flexibility typical of carbon, but also which also provides support for mounting the wheel axles, in the case of skateboards or scooters, or the fasteners in the case of skis, snowboards, water ski boards, wakeboards, etc.

Description of the drawings

To complement the description that is being made and in order to facilitate the understanding of the characteristics of the invention, a set of drawings is attached to this specification in which, for illustrative and non-limiting purposes, the following has been represented:

- Fig. 1 shows a perspective view of a skateboard configured from a board (1) manufactured according to the present invention.

- Fig. 2 is a side view of said skateboard.

- Fig. 3 is a bottom plan view of the skateboard in Fig. 1.

- Finally, Fig. 4 is a cross section according to plane A-A indicated in the previous figure.

Embodiment of the invention

To simplify, the figures have always represented a skateboard, although this board can also be made for scooters, snowboards (skis, snowboards,...) or nautical boards for surfing, water skiing, wakeboarding, etc. paddle surfing etc.

As can be seen in the referenced figures, the sports table of the invention comprises:

- On the one hand, a platform (2) that defines the surface of the board, which is made of a thin sheet of carbon fiber with a high rate of flexibility and elasticity; Y - On the other hand, an exoskeleton-like structure (3), also made of carbon fiber, which is integrated into the platform (2) using co-curing techniques.

The co-curing process by which several uncured components are simultaneously joined to each other or between two skins, reduces the number of secondary assembly operations and the cost of the manufacturing process, due to the elimination or reduction of labor direct. In addition, superior dimensional control and lower weight of the hardened composite structure is achieved. Joint productivity and structural performance are also improved. In addition to that integrated structures can be manufactured on a large scale without an autoclave, which saves time and costs. In short, the ability to manufacture two different structures in the same article provides the invention with very notable advantages in various aspects.

The exoskeleton (3) constitutes a fundamental part of this table (1) since it provides it with the necessary structural rigidity for the sports practice in question. For this, it must be thicker than the platform (2) and consequently it must protrude from it on the lower or upper face, depending on the application of the sports table (1). For example, on a skateboard it protrudes from the lower face, but on a ski or wakeboard snowboard it protrudes from the upper face.

The general configuration of said exoskeleton (3) is in the shape of a vertebral column (31), with a series of ribs (32) that, starting from the vertebral column (31), run to an area close to the lateral edges of the platform. (two).

The vertebral column (31) is straight and runs longitudinally through the center of the table (1); while the ribs (32) can be straight or have a certain curvature; in general, they can have convexity towards the forward direction of the board in the sport in question. Optionally, some or all of the ribs 32 may also be curved upwards near their ends.

In a preferred embodiment, the ribs (32) are perpendicular to the vertebral column (31) that forms the exoskeleton (3) with them, although other arrangements are possible without detriment to the invention, for example, the two ribs are inclined to form arrowheads. that concur at a point in the forward direction of the table in sports practice.

In a preferred embodiment, the ribs (31) are joined together by a band (33) of carbon resin, which runs peripherally to the platform (2). Optionally, the ribs (32) can be joined together by carbon fiber side bands that run along all or part of the length of the platform (2).

Likewise, provision has been made for the spinal column (31) to have, at suitable points, means for fixing trunnions (4) for the axle (5) of wheels, or for anchoring the fixings, or any element necessary for the table performance.

Once the nature of the invention has been described, as well as a preferred embodiment, it is evident that the invention is capable of industrial application, in the indicated sector.

Likewise, it is stated for the appropriate purposes that the materials, shape, size and arrangement of the elements described may be modified, as long as this does not imply an alteration of the essential characteristics of the invention that are claimed below:

Claims (8)

1. - Sports board, which includes : - a platform (2) that defines the surface of the board, made of a thin sheet of carbon fiber with a high rate of flexibility and elasticity; Y - an exoskeleton-like structure (3), made of a composite material, which is integrated into the platform (2) using co-curing techniques, which provides the board (1) with the structural rigidity necessary for sports practice concerned; wherein said exoskeleton (3) has a straight spine (31) that runs longitudinally through the center of the table (1) and a series of ribs (32) that, starting from the spine (31) run to an area close to the lateral edges of the platform (2); Y wherein said exoskeleton (3) protrudes from the platform (2) on the lower or upper face, depending on the sports application of the table (1). 2. - Table, according to claim 1, characterized in that the structure of the exoskeleton (3) is made of carbon fiber and has a significantly lower flexibility and elasticity index than the platform (2). 3. - Table, according to any of the preceding claims, characterized in that the backbone (31) defines at suitable points means for fixing some trunnions (4) for the axle (5) of some wheels, for anchoring some fixings, or any element necessary for the operation or fixing of the board. 4. - Table according to any of the preceding claims, characterized in that the ribs (32) are straight. 5. - Table according to any of the preceding claims, characterized in that the ribs (32) are perpendicular to the spine (31) that forms with them the exoskeleton (3). 6. - Table according to any of the preceding claims, characterized in that at least one of the ribs (32) is arched upwards in the area near its ends. 7. Table, according to any of the preceding claims, characterized in that the ribs (31) are joined together by a band (33) of carbon fiber, which runs peripherally to the platform (2). 8. Table, according to any of the preceding claims, characterized in that the ribs (32) are joined together by respective carbon fiber side bands that run all or part of the length of the platform (2).