Stable floor element

1. Prefabricated stable floor element comprising:

a concrete supporting element having a top side defining a service face when in use and a bottom side defining a bottom face for supporting the supporting element when in use, the supporting element being a floor grating defined by several beams disposed spaced apart from one another for defining openings or recesses between the beams, the beams being mutually connected by cross beams, the beams widening in a direction from the service face to the bottom face resulting in the openings or recesses narrowing in the direction from the service face to the bottom face;

a rubber or an elastic synthetic material insert element being provided in at least one of the openings or recesses, the insert element reaches into an inner space of the recess or the opening for fixing the insert element to one of beneath, in line with or above the service face.

2. Stable floor element according to claim 1 , wherein the insert element in the inner space of the recess or the opening connects to at least two opposite walls for immobilizing the insert element.

3. Stable floor element according to claim 1 , wherein the beams have a cross section which in the direction from the service face to the bottom face, first has a predominantly constant width and then gradually widens to a predominantly constant width, which continues to the bottom face.

4. Stable floor element according to claim 1 , wherein the service face is provided with grooves or unevennesses.

5. Stable floor element according to claim 1 , wherein the service face of the supporting element slopes towards the bottom face, either to a centrally or a peripherally situated zone of the supporting element.

6. Stable floor element according to claim 1 , wherein the beams are mutually connected by three of the cross beams, one at each far end of the beams and one in a middle thereof.

7. Stable floor element according to claim 6 , the cross beam situated in the middle has a height which is smaller than the height of the cross beams situated at the far ends, and the beams have a varying height, such that the service face of the floor grating, formed of the upper surfaces of the beams and the cross beams, is free of any sudden transitions.

8. Stable floor element according to claim 1 , wherein the shape and dimensions of the insert element are such that insert element is provided exactly in the recess or in the opening, between the beams of the floor grating, and is thus immobilized.

9. Stable floor element according to claim 8 , wherein the insert element in general has a U-shaped section with a body and two legs.

10. Stable floor element according to claim 9 , wherein a top side of the body when in use, being the top of the insert element, is made convex.

11. Stable floor element according to claim 9 , wherein the top of the insert element is provided with a central part which is made flat and with a slanting part on either side thereof.

12. Stable floor element according to claim 9 , wherein the body is provided with side walls, and in that the legs are provided with outer sides, the shape and dimensions of the side walls and of the outer sides mainly correspond to the shape and dimensions of the opening between the beams.

13. Stable floor element according to claim 1 , wherein the insert element is provided with one or several continuous openings.

14. Stable floor element according to claim 11 , wherein one or several continuous openings are provided in the central part of the body.

15. Stable floor element according to claim 12 , wherein the insert element is provided with one or several small channels provided in the upper surface of the insert element.

16. Stable floor element according to claim 12 , wherein the insert element is provided with springy strips made of an elastic synthetic material or rubber, and whose free ends connect when not loaded.

17. Stable floor element according to claim 1 , wherein the insert element does not cover the service face of the supporting element at all and thus leaves it entirely free.

18. Stable floor element according to claim 1 , wherein the openings or recesses pass entirely through the supporting element from the service face to the bottom face.

19. Prefabricated concrete supporting element for a stable floor, the supporting element comprising:

a top side defining a service face when in use and a bottom side defining a bottom face for supporting the supporting element when in use, the supporting element being a floor grating defined by several beams disposed spaced apart from one another for defining openings or recesses between the beams, the beams being mutually connected by cross beams, the beams widening in a direction from the service face to the bottom face resulting in the openings or recesses narrowing in the direction from the service face to the bottom face, the recesses or openings extending from the service face to the bottom face.

20. The supporting element according to claim 19 , further comprising a rubber or an elastic synthetic material insert element provided in at least one of the recesses or openings, the insert element reaching into an inner space of the recess or the opening for fixing the insert element to one of beneath, in line with or above the service face.