DE20205526U1 - Vessel - Google Patents

Description

Vessel

The invention relates to a vessel for the permanent or temporary storage of soil and/or water or other substances.

Vessels are those for planting, such as flower pots, planters, plant troughs, plant boxes, etc. and/or for storing or conveying water, such as fountains, gargoyles, water balls, birdbaths, etc. Such vessels are known in a wide variety of designs. For example, DE 297 02 643.7 describes a wooden vessel in which the inner surface of the wall is covered with a foamed two-component plastic, which on the one hand runs up to the immediate vicinity of the upper edge of the wall and on the other hand is designed as a base at the bottom. Such vessels are characterized by various advantages, in particular watertightness and weather resistance. Customers consider the disadvantage that the inner surface has a plastic appearance.

Plant pots and gargoyles made of pure polyurethane foam or polyester resin are also well known. These pots are very sensitive to impact. In addition, the outer surfaces darken over time.

The object of the invention is to create a vessel of the type mentioned at the beginning which is waterproof, shock-sensitive and weather-resistant and which comes close to a natural appearance.

According to the invention, the object is achieved by the characterizing part of claim 1. Advantageous embodiments and further developments of the subject matter of the invention are specified in subclaims 2 to 5.

The advantages of the vessel according to the invention are that it is waterproof, shock-sensitive and weather-resistant and has a natural appearance. Depending on the customer's wishes or the intended use, the vessel can be colored.

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The vessel consists of a mixture of a polyurethane foam with a weight proportion of about 10% to 90% and a sand particle with a weight proportion of about 90% to 10%. This mixture can be provided with a small amount of a dry or liquid dye.

The polyurethane foam preferably comprises a two-component plastic. It is advantageous to use a polyurethane integral foam that is CFC-free and has closed pores and that forms a pore-free skin on the surface when foamed in molds.

The dry material for the mixture preferably consists of sand, with a fine grain size of 0.1 mm to 0.7 mm. The grain size and the weight proportion depend on the intended use and the appearance of the visible surface. Grain sizes of < 0.1 mm are also conceivable. Individual grain sizes of approx. 10 mm can also be used for plant troughs. Grain sizes of 0.1 mm to 0.7 mm are intended for flower pots. The appearance of the container appears more natural the more sand is used.

Dye is mainly used for external coloring, but it can also be used to increase the durability of the vessel.

Below are two examples of the mixing ratio of the mixture that lead to vessels with the desired properties.

Example 1 for a flower pot:

Polyurethane integral foam 25 + 10 wt.%

and

Sand with a grain size of

0.1 mm to 0.7 mm 75 ± 10 wt.%.

Example 2 for a gargoyle

Polyurethane foam 20 ± 10 wt.%

and

Sand with a grain size of

0.3 mm to 0.7 mm 80 ± 10 wt.%.

The preparation of a vessel with the above mixture is carried out as described below.

A mold is prepared for the vessel, which consists of a core that forms the inner surface of the vessel to be manufactured, and a molded part that is placed over the core and whose inner surface forms the outer surface of the vessel to be manufactured. The core stands on a molding table and the molded part is positioned and fixed over the core in such a way that it acts as a seal on the molding table. The molded part is provided with a pouring opening at the top.

The mixture is prepared in a separate container. To do this, the sand portion is first added to the container. If necessary, the color portion is also added here. The two liquid components of the polyurethane foam are then poured together onto the sand portion. Since this is where the foaming process begins, the components mentioned must be mixed together immediately and as quickly as possible. The flowable mixture is then poured through the opening of the prepared mold, which is then tightly closed with a lid once the fill level is reached. The foaming process in the mold continues. Once foaming is complete, the mixture hardens in the mold. Once hardening is complete, the molded part and the core are removed. The finished container is then taken from the mold table to the storage area.

Claims (5)

1. Vessel for the permanent or temporary holding of soil and/or water or other substances characterized by a mixture of the following substances: a) 10 to 90 wt.% polyurethane foam and a) 90 to 10 wt.% sand. 2. Vessel according to claim 1, characterized in that substance a) is a two-component polyurethane foam. 3. Vessel according to claim 1 and 2, characterized in that substance a) is a polyurethane integral foam. 4. Vessel according to claim 1, characterized in that the substance b) has a grain size of 0.1 to 0.7 mm. 5. Vessel according to claim 1, characterized by a further substance c) a dry or liquid dye.