NL7904691A - WOVEN MAT WITH NUMBER OF FIXED METAL CHAIN WIRES. - Google Patents

Description

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1 5 JUKI 1379 W.

Harm Last, Gerrit Eenkhoorn, Gerrit Timmerman and Jan Timmerman, alien in Genemuiden, the Netherlands.

Woven mat with a number of fixed metal warp threads. ! ί

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The invention relates to a woven mat for bottom or bank protection, zinc pieces and J

the like, consisting of a plastic fabric j

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warp and weft threads. 5 Such a mat is widely used as; base for floor or bank coverings in which a ballast or weep is applied to the mat · {using the! appropriate binders or adhesives.

In view of the ever-increasing units, which are towed from the factory or factory to the destination, the mats must have an increasingly greater tensile strength.

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Attempts have already been made to create composite structures. consisting of a plastic mat with metal mesh ·.

i 15 Making such constructions is expensive. ;

The object of the invention is to provide a high tensile woven mat which is simple; * (can be made on the loom. i

The mat according to the invention is distinguished in that some warp threads have been replaced by one; fixed warp thread of metal. >

The fixed, warp thread of metal proposed by the invention not only gives the mat the required tensile strength, but thanks to the 'greater' stiffness with respect to the synthetic threads during weaving I has immediately become a fixed warp, i.e. say that . .-1 t • 790 4 6 91 -2-

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this warp is not bent like the binding chains around the weft threads in a zigzag fashion, hardly any stretch. experience.

In a preferred embodiment according to the invention, the metal warp thread is formed by a twisted steel cable. The woven mat hereby retains a certain flexibility, so that it can adapt to soil unevenness. The steel cable used according to the invention can hereby be stranded both left and right, whereby any suitable construction of the steel cable can also be used, such as the long-strand or cross-strand cables. · Ί>

Especially with relatively thick warp threads of | metal or thick steel cables furthermore proposes the invention in addition to the fixed 'metal chain'; plastic binding chains located to give a diameter corresponding to that 'fixed' metal chain. !

This will ensure a smoother transition of the weft threads j from the normal mat fabric to the metal warp j

20, which is also the density of the 'I

benefits mat fabric, thereby ensuring uniform water permeability of the mat. j

In hydraulic engineering are already woven! mats used, during the manufacture thereof]! 25 binders or adhesives are woven in, which "binders!

or adhesives serve to attach I

wicks or other ballast material, such as cast concrete blocks on the mat. 1

For such a mat, the invention contemplates binders or adhesives relative to the ballast side; I * guide the mat behind the fixed metal chain. ! Thanks to this measure, the forces exerted on the whom pi or the ballast will be transferred almost directly to the strong "metal warp threads". j i 790 Λ (S 91 -3 ~

In another embodiment of the mat it can also be advantageous. according to the invention to cause the fixed chain to float at regularly spaced locations on the ballast side of the mat relative to the mat fabric.

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These fluttering steel wire parts can then be used! to attach ballast material by passing adhesives i between the mat and the steel wire. j

The mat fabric can be used regardless of the above! The features described have any suitable shape, wherein any known weaving technique can be used to obtain certain known weaving structures. i! j j t? i (i i i i f i i i. ï j t f \ (l t ï

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790 46 91

Claims (7)

1. Woven mat for bottom or bank protection, zinc pieces and the like consisting of a fabric of synthetic warp and weft threads, characterized in that some warp threads have been replaced by a fixed warp thread of metal. Mat according to claim 1, characterized in that the metal warp thread is formed by a twisted steel cable. Mat according to claims 1 and 2, characterized in that the plastic binding chains located next to the fixed metal chain have a diameter corresponding to that fixed metal chain. J 4. Mat provided with woven binders or adhesives for applying wicks and ballast, according to one of the foregoing; claims, characterized in that the binding or | Adhesives pass behind the fixed metal chain relative to the ballast side of the mat. ! j 5. Mat according to any one of claims 1-3, characterized in that the fixed chain floats at regularly spaced locations on the ballast side of the mat relative to the mat fabric. Bottom or bank protection provided with a woven mat according to any one of the preceding claims. 25 Zinc piece provided with the woven mat according to any one of claims 1-5. i f [* ’· * 7904691