According to the International Classification of the Patents, the object of the invention has classification designation E 01 C, i. e. E 01.

Technical problem In this patent appeal, the following problems have been solved - how to prevent the slipping of the footwear's sole on the extremely shiny-smoot polished surface of the floors, made of the stone, glass, artificial substances, but without degrading their esthetic appeal, by smearing them with the frictional lacquer, covering them with the carpets, grinding the shiny surfaces-i. e. how permanently prevent the slipping, even in the case when the floor has not been maintained, is very dirty, while antislipping device must have much longer duration than the present means - how to increase and enrich esthetic appearance of the shiny-smooth floor surface by producing the mosaic images on the floor with the help of the antislipping rivets, which under the natural or artificial lightning should produce special artistic appeal of the grains of gold or diamonds strewn on the floor, The defined technical problem, has been solved by this invention, the process of the in built of the antislipping rivets with the conic heads for prevention of slipping on the polished floors was named "riveting" The state of the technique Present technique for the prevention of slipping on the highly polished surfaces of the floors, mainly uses partial or complete destruction of the floor's surface, in order to create the deformational resistance (solid footing) to footwear's sole, or the floor may be smeared/over-coated by a transparent frictional lacquer, in order to increase the frictional resistance between footwear's sole and the lacquer itself.

The effectivity and durability of such solution is not satisfactory, especially as the esthetic appearance of the floor and of the surrounding space has been degraded. The said techniques change (degrade) some 50% of the total surface floor area. They are also ineffective under the heavy conditions, i. e. when the floor is being covered by water, oil, mud, dust, sand, or garbage like fruit-bananas, chicken skin and other types of the contaminants.

These are the basic and unsurmountable shortcomings of the known technical solutions for preventions of the humans, slipping on the highly polished floor surfaces while, the new technical solution offered in this patent appeal, solves all the problems and shortcomings of the present techniques-furthermore, it offers the increased esthetic appearance of the surfaces of the floors that have been riveted.

The antislipping rivets with conic heads to be inbuilt into the floor surfaces, use only 15-20% of the total floor area when they are in built in the matrices 75 x 75mm, in the square form, diagonal form, in the groups, etc, by the wish.

The production and the use of the antislipping rivets requires in each step of their application, a low level of technological complexity, the suggested solution is economically acceptable and justified, especially regarding the durability of the product as its duration exceeds the life age of the floor itself, i. e. it is the solution"for ever", hence, it is incoparabily cheaper than the methods used at the present.

There is a technical detail that has to bi undrelined-on the same floor the distribution of the antislipping rivets can be changed 1-2 times, i. e. we can use 40% of the total floor area for drilling the holes for antis lipping rivets without endangering the stone slab to break.

The following drawings explain how the problem has been solved Fig. 1. shows the appearance of the antislipping rivet with conic head and the way of the in built into the surface of the floor Fig. 2. shows the types of distribution of the antislipping rivets kpl as it follows a) Square distribution b Diagonal distribution c) Group distribution d) Linear distribution..

On some part of the floor's shiny-smooth surface, slipping is prevented by creating a deformation of the footwear's sole, by making the hole in the floor 3 whose measures form with the body of the antislipping rivet 1 with the plastic (or ruber) enclosure outside smeared with the bonding 2 which are togheter impressed into the hole in the floor 3.

The conic head of the antislipping rivet 1 is of such form and size, to secure good and reliable hold, i. e. deformation of the footwear's sole in order to create minimal supporting shear force of 5 (10) kp, between footwear's sole in hold and antislipping rivet 1-to secure antislipping action on the extremly smooth surface of the floor 3, by using antislipping rivets with the conic heads l, it is enough to have one, eventualy two antislippping rivets 1 in contact with the footwear's sole, in all combinations of the possibile foot's positions and the types and sizes of the soles.

The glass slabs with the inbuilt antislipping rivets 1 may be tightly mounted over the differnt types of the grounds, floors, for the protection of very expensive carpets, tapestry and other artistic works placed on the floors.

The instruction for the optimal use of the patent claim In order to realize the wanted technical solutions, the manufacturer of the antislipping rivets with the conic heads, must secure the following, 1. The antislipping rivets with the conic heads must be produced from the enduring, strong and hard material, like brass, duraluminium, hard plastics, by using certain technological process. The form and the measure of the antislipping rivet must be in the agreement with its application, but the basic measure is the height of the conic head of the antislipping rivet, around 3mm, of the same size is the diameter of its head. The rivet's body should have the diameter of 1/3 D and its height should be 1,4 D.

2. To secure the unseparable/firm joint between the antislipping rivet and the ground 3, i. e. the hole drilled in the ground whose diameter equals the antislipping rivet's head diameter, and to secure the antislipping action on the extremely smooth surface of the floor 3, antislipping rivets with the conic heads 1 must be distributed and separated by a predetermined mutual distance in order to create firm and secure hold of one or eventualy two antislipping rivets 1 with the footwear's sole, in all combinations of the possible foot's positions and the types and sizes of the soles.

The plastic enclosure has double purpose. It prevents a rivet to get out of the hole, by countless footwear's impacts. It also protects the floor's slab from being damaged by the rivet itself. Plastic or ubber enclosure serves as an amortizer between antislipping rivet and the material of the floor, like stone, glass, etc.

3. The tools and the technology needed for the production and application of the antislipping rivets are ordinary, well known tools and bondings used in the machine industry and in building.

Small private firms may considerably profit from the application of the antislipping rivets.

4. The mutual distance of the antislipping rivets on the floor is around 50-75mm (at most 100 mm) in order to secure at least one antislipping rivet's hold per footwear's sole.

Hence, antislipping rivets need only 10-20% of the total floor area.

Around 100 antislipping rivets is needed per one square meter of the floor area, exceptionally 150 rivets in the worst case of the floor's contamination.

5. Time needed for riveting a square meter of the floor area (mounting of the antislipping rivets) is around 2 hours.

The process of the mounting of the antislipping rivets into the floor needs two basic working operations; a) Drilling of the holes in the floor b) Mounting of the antislipping rivets into the drilled and prepeared holes in the ground.