SK171298A3 - Liquid-permeable floor covering - Google Patents

Abstract

Liquid-permeable floor covering for floors that can be walked or driven on, and the like, made of a cellular elastic plastic, with the side of the covering in contact with the floor having liquid-drainage channels (2, 2') running in parallel and spaced apart formed in it, with further channels (3) branching off from these channels and running through the covering at intervals, that are cut or shaped into the covering.

Description

The invention relates to a liquid-permeable covering suitable for pavement and road surfaces.

BACKGROUND OF THE INVENTION

It is known to use liquid-permeable surface-strengthening elements for covering the soil and the like in order to drain surface water and the like. Such elements are made of artificial stone and laid in a bundle. This requires a relatively expensive shaping of the elements used and a considerable work effort in laying them with correspondingly high expense. In addition, the weight of the elements makes it difficult to handle and transport them.

SUMMARY OF THE INVENTION

It is an object of the present invention to provide a liquid-permeable filter-like coating which can be produced without great expense and can also be laid in a simple and quick manner. At the same time, the cover should ensure the correct drainage of the liquid.

The coating according to the invention is characterized by a combination of features that are made of cellular elastic plastic material, preferably the cell size rises from top to bottom and that mutually running, preferably also intersecting, mutually intersecting channels are formed on the soil-engaging side of the covering. and that further channels are cut away from these liquid-draining channels by the covering, which are cut or shaped into the covering and open preferably conically or stepped downwards.

This adaptation ensures optimum filtration at any large adaptation and relatively low weight as well as elastic formability of coverage and

31126 / H Drainage. According to the invention, low durability is achieved with low wear and ensures that the drainage channels and material cells do not close on the surface, because when the coverage creases under load, the through holes widen downwards and any clogging is avoided.

According to a preferred embodiment of the invention, the cover is formed in the form of a winding strip, which allows the cover to be wound and easy to transport, as well as its rapid laying.

According to another feature of the invention, the coating is formed from a cell elastomer such as polyurethane (polyetherurethane, e.g. Sylomer®). Such elastomers may have e.g. specific gravity from 150 kg / m ³ to 680 kg / m ³ and ensure full-area power transmission. In addition, they exhibit extremely good behavior under dynamic loads, while becoming more rigid. Said elastomers are resistant to water, oil, fat, etc.

In the context of the invention, the coating can naturally also be composed of individual elements of any size, which are also bundled together.

The channels used to drain the liquid may be formed by shaping, e.g. when casting the coating, or also by mechanical means, e.g. using a water jet.

According to the invention, the drainage effect and self-cleaning are additionally promoted by the elastic coating behavior when passing through the "compression processes". In particular, it is ensured by the molding processes that the particles penetrating into the outflow openings are further transported. The sealing of the surface is therefore excluded.

Liquid removal channels on the underside of the coating contribute to the formation as well as the drainage of the water. As mentioned, these channels may also run in the cross direction, so that a network of channels is given.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be explained in more detail by way of a specific example of embodiment shown in the drawing, in which the figure represents a strip-shaped covering according to the invention in cross-section.

31126 / H

DETAILED DESCRIPTION OF THE INVENTION

The illustrated coating is formed from a cellular, abrasion-resistant elastomer, e.g. of liquid-permeable polyurethane. Cell size may increase from the top of the cover to the bottom.

As shown in the figure, channels 2 running parallel to one another in the soil-engaging side are provided which promote the ductility of the coating and serve to drain the liquid. In the embodiment shown, an intersecting array of parallel channels 2 'may also be provided so that a network of channels is formed. Other channels 3 extend from the channels 2 with a spacing from one another. The channels 2, 2 or 2 ', respectively, for draining the liquid and the other channels 3 can be formed by shaping, e.g. when casting the coating or also by mechanical means, e.g. by means of a water jet or also by punching. The channels 3 can also be opened stepwise downwards.

The illustrated coating may be formed as a strip or as a single element that can be wound. Various variants of the exemplified embodiment are possible within the scope of the invention, in particular as regards the materials used.

Claims (3)

A liquid-permeable covering for pavements and roads and the like, characterized in that it is made of a cellular elastic liquid-permeable plastic material, preferably the cell size increases from top to bottom and that they are on the side of the covering touching the soil in spaced-apart, preferably also intersecting, liquid-evacuating channels (2, 2 ') spaced apart from one another, and further spaced-apart channels (3) which are cut or formed in the covering extend from these liquid-evacuating channels and preferably conical or stepwise opening downwards. Cover according to claim 1, characterized in that it is in the form of a winding strip. Coating according to claim 1 or 2, characterized in that it is made of a cell elastomer, preferably polyurethane.