DE3046953A1 - SAILING BOARD FROM A MOLDED PLASTIC HOSE - Google Patents

Description

Sailboard made from a molded plastic tube

The invention relates to a sailboard made from a molded one Plastic hose.

Sailboards of this type are widely used on the Known in the market. Such sailing boards have been foamed with a foam compound to the relative to stiffen flexible plastic hose shaped like a sailboard.

This usual procedure is relatively expensive, since liquid plastic foam mass in the interior of the Filled sail board and then hardened.

The object of the invention is to design a sailing board consisting of a molded plastic tube in such a way that that the Avsschäumproprocess of the manufacturing process is saved and manufacturing is simplified as a result.

OB.GINAU INSPECTED

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Your task is through a in the preamble of the claim 1 specified sail board solved, according to the invention according to the in the characterizing part of Claim 1 specified manner is designed.

Further advantageous embodiments of the inventive Sailboards result from the subclaims.

According to the invention it is provided in the still open, Insert a stiffening part into the plastic tube preformed to the sailboard. This stiffening part can be placed in stock prefabricated and only needs to be inserted after the plastic tube has been formed into the sailboard. This shortens the manufacturing time of a sailboard is extraordinary, because of the time-consuming foaming process is saved.

According to a preferred embodiment of the invention, the stiffening part is fork-shaped or U-shaped Provided shape, with the two legs the sword channel and provided for the mast base Enclose sockets. With this embodiment allows, with a preformed sailboard in which the sword channel is already present, the

to be able to fill the entire interior of the sailboard with the stiffening part.

The stiffening part can itself in the blow molding process be made. Instead, a correspondingly shaped body made of Hartsohaum can also be used will.

^Ov> According to a further embodiment of the invention, it is

ORIGINAL INSPECTED

seen pushing pipes or hoses into the interior of the sailboard. These pipes or hoses are preferably glued to one another with their outer surfaces, thus also in the transverse direction of the sailboard rigidity is achieved. If the same material is used for the sailboard and the stiffening part, both parts of the sailboard and the insert part close together.

The manufacturing process is the hit with the sailboard according to the invention considerably simplified. A plastic tube is then made in a hollow-body blow molding process molded in a blow mold on the outer shape of the sailboard, with the blown sailboard on his rear end (the mirror) is open. At this end there is a hose made of the same material as the plastic hose The flap is provided, which is closed after the stiffening part has been pushed in and is connected to the outer wall of the sail board is welded.

The invention will now be described below with reference to the exemplary embodiments shown in the figures and explained in more detail.

FIG. 1 shows a first embodiment of an inventive Sailing boards,

Figure 2 shows a further embodiment with differently designed stiffening parts. 30th

In Figure 1, a sailboard is shown schematically, which was produced by the blow molding process. It consists of a plastic tube open at one end, in which the sword channel 6 and the ° Sockets 7 for the mast base are molded in. Of the

ORIGINAL INSPECTED

30th

A stiffening part is placed in the inner cavity 3 at the bottom. 2 inserted. This stiffening part is fork-shaped, the incision is used to to get past the sword channel 6 and the sockets 7. After inserting the stiffening part, the Flap 5 closed and welded.

Another embodiment of the invention is shown schematically in FIG. In the cavity

'"of the blown plastic tubing are pipes or Hoses 4 pushed in. These pipes or hoses 4 can be coated with adhesive on their outer surfaces that hardens after the pipes are inserted and gives them a firm hold on each other / so that the

'** Sailboard not only with regard to the longitudinal direction, but is also stiffened in the transverse direction. As in the previous example, after inserting the Hoses or pipes 4, the flap 5 closed and welded. With the same material for sailboard and

Inserted stiffening parts can also be welded to the outer skin.

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attorney

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Claims (9)

EXPECTATIONS 1. Sailboard made of a molded plastic tube, characterized in that it has one or more stiffening parts (e) which is (are) pushed into the inner cavity (3) of the sailboard (1). 2. Sailboard according to claim 1, characterized in that the stiffening part (2) has a fork-shaped shape owns. 3. Sailboard according to claim 1 or 2, characterized in that the stiffening part (s) (2) are a Hollow body is (are). 4. Sail board according to claim 3, characterized in that the (s) VersteifungsteiKe) (2) ⁿ in Hohlkörperb asverfahren is made (are). 5. Sailboard according to claim 1 or 2, characterized in that the stiffening part (2) consists of hard foam. ORIGINAL INSPECTED 6. Sailboard according to claim 1, characterized in that that pipes or hoses (4) are inserted into the inner cavity (3) as stiffening parts. 7. Sail board according to claim 6, characterized in that the tubes or hoses made of high pressure polyethylene exist. 8. Sailboard according to claim 6 or 7, characterized in that that the pipes or hoses (4) are glued or welded to one another on their outer surfaces. 9. A method for producing a gel board according to any one of claims 1 to 8, characterized in that that in the hollow body blow molding process a plastic tube is molded in a blow mold on the outer shape of the sailboard, the blown sailboard on the mirror is open and provided with a flap (5) that the (the) stiffening part (s) are pushed into the inner cavity (3) and that then the flap (5) is closed and is welded to the outer skin of the self-service board.