Temporary surface covering for the circulation of vehicles on sa

Details Temporary surface covering for the circulation of vehicles on sa Temporary surface covering for the circulation of vehicles on sa

1996-10-25

1998-12-08

Bell, James J.

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Woven fabric

Woven fabric is characterized by a particular or...

139384R, D03D 300

Patent

active

058468900

DESCRIPTION:

BRIEF SUMMARY
FIELD OF THE INVENTION

The present invention concerns a temporary surface covering to allow or facilitate the circulation of vehicles on sandy or swampy soils and more specially a flexible covering able to be deployed like a carpet.


BACKGROUND OF THE INVENTION

There are virtually no structures for temporarily covering this type of soil and able to be deployed to the actual surface of the soil to allow the circulation of vehicles, apart from rubber track type structures used by military engineering, these structures being structures with extremely heavy expensive steel cable reinforcements.
Now, there is a need, especially on sea shores having sandy areas, beaches, dunes, to have light inexpensive temporary covering structures able to be easily placed and removed to permit the routing of emergency of fire-fighting devices on sites only accessible by sandy tracks where there is a risk of sinkage.
In fact, the surface covering of the invention is suitable for all surface types with inadequate coherence or all unstable soils, especially sandy, swampy or muddy soils not exhibiting sufficient coherence on the movement of 2-wheel drive vehicles.
The aim of the present invention is to provide a surface covering suitable for the circulation of vehicles on a sandy or swampy soil.


SUMMARY OF THE INVENTION

To this effect, the invention concerns a temporary surface covering for the circulation of vehicles on sandy or swampy soils, wherein it is formed of a woven structure formed from monofilament type weft threads disposed along a single layer and warp threads, also disposed along a single layer, the weave of the woven structure being such that each warp thread is interlaced with the weft threads preferably and extremely approximately along half of the intersections of the rows and columns of the weave, the warp thread being left in the remaining intersections so as to obtain for each warp thread at least one tight single weave zone followed by a loose thread zone, the alternation of the various zones provoking retightenings of the weft threads creating a large relief of the embodied fabric.
This structure rolls out like a carpet, is relatively light and flexible so as to easily match the profile of the soil to be covered, allows for easy running of vehicles without the structure penetrating into the sand and allows for passage even in steep locations by virtue of the projections provided in the woven structure and which appears in the form of transverse ribs to which the vehicle tires adhere easily.


BRIEF DESCRIPTION OF THE DRAWINGS

Other characteristics and advantages shall appear more readily from a reading of the following description of embodiments of the structure of the invention, said description being given solely by way of example and with reference to the accompanying drawings on which:
FIG. 1 represents a weave of a woven covering structure conforming to the invention;
FIG. 2 is a diagram representing a woven structure along the weave of FIG. 1, the warp threads being within the plane of the figure,
FIG. 3 is a partial diagrammatic perspective view of a woven structure in accordance with FIG. 2,
FIG. 4 represents the weave of FIG. 3 reduced to the weft threads and the warp thread N.sup.o 1,
FIGS. 5 to 13 are figures similar to FIG. 4, but with the warp threads N.sup.o 2 to N.sup.o 10 respectively,
FIGS. 14 to 16 represent another weave of a structure conforming to the invention,


DETAILED DESCRIPTION OF THE INVENTION

FIG. 1 shows a preferred weave of the woven structure of the invention.
This conventionally represented weave includes ten warp threads numbered 1 to 10, corresponding to ten vertical columns and twenty-six weft threads numbered 1 to 26, corresponding to twenty-six rows.
Shown in black at the intersections of the rows and columns are the taken weft threads and in white the remaining warp threads.
FIG. 2 represents a woven structure portion corresponding to the weave of FIG. 1, the weft threads marked 1 to 26 being seen at the end and represented by small circles, whereas the warp th

REFERENCES:
Textile Manufacturer vol. 92, No. 11, Nov. 1966 Manchester GB pp. 443-444, A.J. Bennett "Honeycomb and Other Open Work-Designs" Fig. 6.

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