DE8910860U1 - Coffin for burial or cremation - Google Patents

Abstract

A process for making hollow articles from lignocellulosic fibres with vegetable binders is presented, by which it is possible to make articles (20) which have a uniform density distribution even in the case of complicated profiling. The dimensions of the articles (20) and their strength can be controlled by the production process presented. A specific setting of the density and of the strength in the article is possible by the process described. The features of the production process are: introducing the suspension into the mould under pressure and compressing the parts (18, 19) of the article. <IMAGE>

Description

Fraunhofer Society WKI 88/22139

for the promotion of applied research e.V. 11.9.1S89

Leonrodstr. 54 Te/ek 8000 Munich 19

Coffin for burial or cremation

The invention relates to a coffin for burial or cremation with upper and lower parts according to the preamble of the main claim .

Commercially available coffins are made of solid wood. High-quality wood is usually used for this, such as oak and spruce lumber. Taking into account the fact that a coffin is intended for one-time use, this means that 150,000 ^m3 of high-quality wood are used to produce around 500,000 coffins per year. From an economic point of view, this is disadvantageous in view of the global shortage of resources.

Another disadvantage of wooden coffins is that their production requires a high level of mechanical and equipment expenditure as well as several work steps.

Attempts have been made to use coffins made of wood materials. However, these have two major disadvantages:

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A rotting time that is too long and insufficient rotting ability in earth burials and the release of harmful emissions due to the synthetic resin content in cremations. These account for 22% of all burials, with regional differences of up to 80%. Accordingly, the environmental impact of using synthetic resin-filled coffins in cremations is very high.

The aim of the invention is to provide a coffin which, in a simple manufacturing process, can be burned with low emissions and which also retains its cohesion for a certain period of time during burials.

This problem is solved by the characterizing features of the main claim. Subclaims represent further advantageous developments.

The manufacturing process is simple and economical. The coffin according to the invention is manufactured in one operation by pouring a water suspension containing lignocellulose-containing fibers and adhesives of plant origin into a mold under pressure. Several processing steps and subsequent screwing or gluing of the individual parts are eliminated. The coffin according to the invention consists of a molded part, i.e. its upper and lower parts are each made in one piece. This coffin made from organic materials can be burned without environmentally harmful emissions and, on the other hand, has sufficient strength for burials with favorable rotting behavior.

The material density of a coffin made of organic material is between 150 and 350 kg/m ³ , it is constant over the entire molded part. The bending strength according to the density is between 1.2 N/mm ² and 2.0 N/mm ² . The bending strengths are the same as the material density in the

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The thickness of the coffin is constant throughout the coffin. The thickness of the walls and the base is between 20 and 60mm. All three sizes can be adapted to the requirements and application. If it is necessary to increase the rigidity of the entire coffin, reinforcements, preferably made of textile fabric, can be inserted into both the base and the walls.

The coffin according to the invention is designed in such a way that it can be processed and finished in a similar way to solid wood. This means that, for example, varnishing and other surface treatments are possible.

The coffin according to the invention is shown in an embodiment shown in Fig. 1.

The coffin 1 has a one-piece upper part 2 and a one-piece lower part 3. On the lower part 3 there are feet 4.

Claims (6)

&bull; · · I «I I I Fraunhofer-Gesellschaft WKI 88/22139 for the promotion of applied research e.V. 11.9.1989 Leonrodstr. 54 Te/ek Munich 19 Coffin for burial or cremation Claims 1. Coffin for burial or cremation, with upper and lower parts, characterized in that it consists of lignocellulose-containing fibers, preferably 100% defibrator wood fiber with vegetable bark substances, in particular starch and/or methyl cellulose, and is a molded part, so that the bottom and the walls of the lower and upper parts are each made in one piece. 2. Coffin for burial or cremation according to claim 1, characterized in that the material density is preferably 150 ^g /m to 350 ^g /m and is constant throughout the molded part. 3. Coffin for burial or cremation according to claim 2, characterized in that the bending strengths of the base and the walls are 1.2 N/mm ² and 2.0 N/mm and have a constant value adapted to the application over the entire shape. 88/22139-WKI Claims 5.12.1989 Te/ek 4. Coffin for burial or cremation according to one or more of the preceding claims, characterized in that the wall and floor thicknesses are 20 mm to 60 mm as required and can be different from one another. 5. Coffin for burial or cremation according to one or more of the preceding claims, characterized in that the walls and the base have reinforcements, preferably made of textile fabric or the like. 6. Coffin for burial or cremation according to one or more of the preceding claims, characterized in that it has an opaque varnish on the surface.