DE1534384A1 - Artificial lawns - Google Patents

Description

Oskar Scheidel

Pinneberg / Holstein
Moorlcamp Ik

Artificial lawns
AZt Sch 38 407 V / 19 c
Sch 39 785/19 c Gbm

description

The invention relates to artificial lawns, produced in conventional Tufting process, in the electrostatic process Flocking, or in general weaving processes, with the particularity that this artificial lawns are permeable to water and also as a top layer Serve water-permeable substructure, this substructure from a water-collecting and water-draining carrier system that can be heated at the same time so Snow «and ice formations are to be avoided or removed

Natural lawns are in common use, especially for sports fields « Natural lawns offer the following advantages, especially for sports fields

1 With an appropriate humus sub-layer, lawns are tread-elastic

909887/0109
«2 -

2. Leave lawns, especially when playing foot and handball games, to the players the ball as far as possible Keep control "

3 · Lawns guarantee a certain protection against physical injuries the player·

On the other hand, there are disadvantages among others:

1. Lawns must first be sown and then require ongoing, cost-intensive monitoring and maintenance

2 »Lawn areas must, depending on the use» and weather conditions, again and again to be newly created «

3 · lawns nuts, especially u & jsh. games that have been carried out, are at least partially replaced over and over again

4 · Lawns are gradually covered Weather and game-related earth displacements and make necessary, uneven, uneven repair work difficult this gives the players control of the ball and increases the risk of injury

5. Lawns are, especially in the case of prolonged rainfall, conditioned by the humus sub-layer, soaked in water for a while, increases the slip ·· danger, make ball control largely impossible and are therefore often temporarily not playable

909887/0109
- 3 -

6. Lawns are not, or when it is snowing, especially when ice is formed Difficult to play on because the frozen humus sub-layer temporarily replaces the natural one Makes water drainage impossible.

The invention has set itself the task of avoiding these disadvantages. The invention consists in the fact that the actual artificial lawn is water-permeable and also a water-permeable and Heatable substructure collects and discharges rainwater or snow and ice through heating melts and then discharges the snow or ice water that forms.

The state of the art is the manufacture of carpets and other pile fabrics, which are described in their surface formation resembles a natural lawn, in the normal weaving process, more expedient by way of

1 · so-called · "tufting process ^M or by way of the

2 · electrostatic flocking

possible and is especially used in the production of so-called eppich floors from wall to wall " practically carried out

To l.i

The production of carpets and other pile fabrics by the so-called "tufting process" (best ^{translated in German as "needle-pile process 1} ") began in the 1930s

909887/0109
_ 4 -

USA | the tufting process is still in use in Europe more recent "

The principle of tufting consists in the fact that for the production of loop pile a needle _f, which guides the pile thread (made of solid, viscose wool or synthetic fibers) in its eyelet, pierces with it through the base fabric, a so-called "gripper holds the loop - so immediately" The desired pile height is determined in good time - and the needle slides back up out of the base fabric.To form the next loop, the base fabric is pushed forward by a small piece - the number of pieces per cm, corresponding to the density of the pile - and the process is repeated in the same way This is how the cut pile is formed: an additional knife cuts the loop formed by the hook this base fabric with the pile material follows after an inspection and the repair of the Completion of the carpet necessary last work process: the back "coating. In general terms, this back coating means: soaking or coating the back of the tufted carpet with a natural or synthetic rubber solution}, if necessary with fillers and other additives.

909887/0109

So-called Lateacier systems, which to attach the tufts of pile or loops • the rubber solution to the ground— applies fabric, but at the same time is coupled with a drying system · So the tufted carpet gets the feel and weight of a woven carpet and after all, you can cut up whatever tufted carpet is in its property as carpeting is advantageous · It also makes the latex the tufted carpet impermeable to water

To 2:

The production of carpets and other pile fabrics by so-called electrostatic flocculation is also not new. This procedure was and is developed about 15 years ago widely used today

It is then possible to pass the pile material through to conduct an electrostatic field · Here the fiber is placed vertically and in this The layer is shot into the sub-fabric or fleece provided with a suitable adhesive · Then takes place finally the drying and in this process the flake and glue are intimately bonded

In both procedures, the Back coating or the weft into the lower fabric or fleece is achieved

m) the firm connection of the pile fabric or the staining with the base fabric,

. - 6 90 9 6-6 7/4 10 9

b) feel and weight like a woven carpet,

c) rod strength,

d) impermeability to water

This impermeability to the water is because of it cancel that the tufted or flocked carpet either by the arrangement of the The base fabric and the use of the appropriate material are water-permeable from the outset or the otherwise water-impermeable base fabric during or after the drying process perforated with needles of the appropriate size to make it water-permeable

This process can be carried out using any suitable machines and devices possible »The shape and diameter of the barrel passages can vary according to the respective conditions or · needs to be adapted "." Without changing the concept of the inventor, the water permeability for different If necessary, technically differently carried out

However, the water permeability of the artificial lawns as the upper layer is still unsatisfactory·

There must also be a substructure, which also is permeable to water, collects and drains water and can be heated at the same time

According to the state of the art, for example artificial creation of ice surfaces possible

909887/0109

A cooling system in the arrangement of a pipe system extracts heat from the water and allows it to freeze · Conversely, according to the state of the art, it is also possible to charge such a pipe system with hot air conventional air conditioning systems and the heating systems for drying out damp rooms

So when snow or ice is supplied with heat these solid bodies (at 0 ° C) change into a liquid state (water) ·

This water in turn can be collected and drained

In the accompanying drawing is the invention for example illustrated:

The pile (i) is located in a sub-fabric (2) that is water-permeable (3) This actual artificial lawn rests on an equally water-permeable lawn Fleece (4b), which is placed on a metal or plastic layer (5) provided with holes rests »Support pillars made of concrete or reinforced concrete (6) are in a solid, sloping Lower layer (ll) let in · Through this Heating pipes (7) can be led through support pillars. There are also support pillars perforated on its underside (10) so that the collecting water can escape undisturbed (β) and can be discharged (9)

- 8th

909887/0109

Claims (1)

Ί534384 Patent claims ί l.j method of making artificial Lawn areas, characterized in that they are made in the conventional tufting process, in the process of electrostatic staining, or in general Surfaces produced by weaving processes are permeable to water 2 · Method for the production of a substructure for artificial · lawns, thereby characterized in that this substructure is also permeable to water, the water collects and drains and can be heated at the same time 909887/0109