Plate for grating and grating resulting therefrom

DETAILED DESCRIPTION The grating plates made according to the invention advantageously have a very small weight, and can very easily be made by moulding, thermosforming or stamping of various synthetic materials and, possibly, of metal, for example, of iron sheets, of aluminium alloy materials, etc.
Assembling of the plates does not necessitate any tools and or require skilled people.
When the plates are made of a flexible material, they can easily conform to the uneveness of a ground, which still facilitates their use.
For some applications, the plates can be manufactured of a bio-degradable material, which enables one to use them for the reinforcement of loose or moving soil untill such soil becomes consolidated by growing of plants.
According to the invention, the plate and the grating formed by one or more of the plates is characterized in that the plate comprises an assembly according to orthogonal lines and rows of pyramidal elements formed by thin arms, these arms having tops connected by a reinforcing part shaped as a wax drop, bottom of the arms being connected to bottoms of adjacent pyramidal elements.
The pyramidal elements are symmetrically formed on both sides of each plate, the lateral walls of which are provided with means for assembling with other plates.
Various other features of the invention are further set out in the following disclosure.