Surf- or sail-board and method of producing the same

Abstract

Surfboard having an essentially elongate, flat basic body which is capable of floating and, during use, rests with its underside on the water, and on whose upper side there is provided a standing surface for the feet of the sports person using the board, and in which at least one fin is attached to the underside. An opening extending from the underside towards the upper side is provided in the basic body for receiving the said fin, whose extent in the transverse direction of the board, that is to say transversely to the direction of travel and transversely to the surface plane of the fin, is less than the cross-section of the fin; the outer edges of the fin cross-section at the connection point to the board are preferably designed in such a way that the outer edges rest essentially completely against the underside of the board.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a surfboard or sailboard and a method for the manufacture thereof.BACKGROUND OF THE INVENTION AND DESCRIPTION OF RELATED ART[0002]A surfboard is to be understood to mean all customary, essentially flat floating bodies which are suitable for surfing. Sailboards are understood to be the essentially flat floating bodies which are or can be fitted with a sail and are used for windsurfing and the like. For reasons of simplicity, the invention is described below by way of the example of a surfboard for surfing. However, it is pointed out that this does not mean any restriction for the applicability of the invention.[0003]To stabilize the direction, surfboards and sailboards require a so-called fin, a plate which is often of essentially triangular design and whose plane is arranged essentially parallel to the plane of the direction of travel. In addition to the triangular basic shape of the fin, there are numerous modifications, ...

AI Technical Summary

Benefits of technology

"The invention is a surfboard or sailboard with a flat, elongated body that can stand on water. It has a fin that is attached to the body and can be screwed in and out. The attachment is made through an opening in the body, which is designed to not affect the flow of water around the fin. The fin is attached to the body using a screw and a brass thread part, and it can be easily removed for transportation or replacement. The design of the attachment allows for easy removal and replacement of the fin without affecting the strength of the board. The fin can also be made as a laminate of fiber-reinforced plastic material. The invention provides a simple and easily accessible attachment for fins, making it easy to transport and replace."

Problems solved by technology

This therefore causes the problems of mounting the fins on the board with sufficient strength.

However, this type of attachment has the disadvantage that it does not ensure a sufficiently secure attachment, and that it furthermore does not allow the position of the fin to be corrected in relation to the board.

An adaptation of the fin position with regard to different external conditions is thus not possible.

The abovementioned designs have the disadvantage that, on the one hand, they are relatively complicated and that, on the other hand, the strength leaves much to be desired.

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