PAVING STONE
The invention relates to a grass paver with a grid-type body which is formed by intersecting transverse portions and longitudinal portions, said portions forming at least one grid opening, wherein the transverse portions project beyond the longitudinal portions, and the longitudinal portions project beyond the transverse portions, wherein corners of the grass paver are each formed by a limb of one of the transverse portions and a limb of one of the longitudinal portions, and wherein the grass paver has a flat upper face. In this case, the longitudinal portions and the transverse portions have different heights and the lower surfaces of said portions define at least one lower contact plane and at least one upper contact plane on an underside of the grass paver.
The invention is based on the object of developing a grass paver which has increased shearing protection in relation to the underlying surface.
The grass paver according to the invention has longitudinal portions and transverse portions with different heights, with the lower surfaces of said portions defining at least one lower contact plane and at least one upper contact plane on an underside of the grass paver. This produces an interlocking connection between an underlying surface which bears the grass paver and at least one of the portions of the grass paver. The core of the invention is therefore the piercing or penetrating of the underlying surface, in particular of a gravel bed or an earth bed on which the grass paver is laid. For this purpose, the grass paver penetrates with at least one of the portions thereof and therefore has an increased resistance in relation to shearing forces which are capable of displacing the grass paver on the underlying surface. Consequently, the grass paver according to the invention can conduct at least a portion of the shearing forces acting on the grass paver during the braking, accelerating and cornering of vehicles into the underlying surface and can thus contribute to reducing a load on adjacent paving blocks.
According to the invention, an area ratio of approximately 1:2 to 1:1 between an overall area of the lower surfaces belonging to the upper contact plane and an overall area of the lower surfaces belonging to the lower contact plane is provided. Such an area distribution makes it possible to achieve a particularly effective interlocking.
Furthermore, the invention provides arranging the lower surfaces of the longitudinal portions exclusively in the lower contact plane or the upper contact plane, and arranging the lower surfaces of the transverse portions exclusively in the upper contact plane or the lower contact plane. This ensures planar resting of the grass paver on an underlying surface. This facilitates the laying and transportation.
One variant embodiment of the invention envisages providing at least one of the contact planes with ribs which are designed as projections and/or recesses. This makes it possible to increase the shearing protection effect even further and to design the contact planes as shearing protection planes.
The invention also provides arranging the ribs of at least one contact plane designed as a shearing protection plane parallel to one another. This simplifies the manufacturing of the grass paver, since molds with simple drawing plates can be used to produce the grass paver.
The invention also provides designing at least one transverse portion and/or at least one longitudinal portion of the grass paver with a zigzag-shaped and/or wavy profile in top view. By selecting different laying techniques and/or a different orientation of the grass pavers, paving arrangements of differing geometry can be produced with grass pavers of this type. This measure therefore results in a grass paver which can be used for paving arrangements having different intended uses. Such a grass paver permits optimum support between the grass pavers of the paving arrangements having different intended uses, since use is made of identical grass pavers which are optimally matched to one another. Furthermore, such a grass paver considerably facilitates the planning of building projects, since initially only the requirement for a certain area has to be calculated and the intended use and appearance of an area can be established at a later time.
According to the invention, grass pavers with a rectangular and in particular a square grid are provided. Such grass pavers can be laid in a simple manner.
Finally, the invention provides a distance between the contact planes and shearing protection planes of at least 15 mm. At and above such a distance, even comparatively large shearing forces can be dissipated.
Further details of the invention are described in the drawing with reference to exemplary embodiments which are illustrated schematically.
The invention is not restricted to exemplary embodiments which are illustrated or described. On the contrary, it comprises developments of the invention within the scope of the patent claims. According to a variant embodiment (not illustrated), paving stones which are designed as grass pavers are also provided with a grid which is rectangular in top view, in which the grid length and the grid width differ in size.
LIST OF DESIGNATIONS
- 1 Grass paver
- 2 Body
- 3, 4 First, second transverse portion
- 3a, 3b Limb of 3
- 4a, 4b Limb of 4
- 5, 6 First, second longitudinal portion
- 5a, 5b Limb of 5
- 6a, 6b Limb of 6
- 7 Grid
- 8, 9a-9h Grid opening
- 10a-10d Corner of 1
- 11 Lateral ends of 3, 4, 5 and 6
- 12, 13 Spacer at 11
- 14 Upper face of 1
- 15 Notch on 14
- 16 Paving arrangement
- 17 Underside of 1
- 18, 19 Lower surface of 3 and 4
- 20 Upper contact plane
- 21, 22 Lower surface of 5 and 6
- 23 Lower contact plane
- 24, 25 Lower surface of 3 and 4
- 26 Rib
- 27 Projection
- 28 Recess
- 30 Upper shearing protection plane
- 31 Lower shearing protection plane
- 101-108 Grass paver adjacent to 1
- D Distance between 20 and 23
- H3-H6 Height of 3, 4, 5 and 6
- KFV Cross joint, cross joint assembly
- LVB Stretcher-type assembly
- M Center point of 1
- RB, RL, RQ Grid width of 1, grid length of 1, grid
- S3, S4 Serpentine line
- T5, T6 Cutout
Claims
1. A grass paver with a grid-type body which is formed by intersecting transverse portions and longitudinal portions, said portions forming at least one grid opening, wherein the transverse portions project beyond the longitudinal portions, and the longitudinal portions project beyond the transverse portions, wherein corners of the grass paver are each formed by a limb of one of the transverse portions and a limb of one of the longitudinal portions, and wherein the grass paver has a flat upper faced, wherein the longitudinal portions and the transverse portions have different heights and the lower surfaces of said portions define at least one lower contact plane and at least one upper contact plane on an underside of the grass paver.
2. The grass paver as claimed in claim 1, wherein an overall area of the lower surfaces belonging to the upper contact plane is in an area ratio of approximately 1:2 to 1:1 to an overall area of the lower surfaces belonging to the lower contact plane.
3. The grass paver as claimed in claim 1, wherein the lower surfaces of the longitudinal portions lie exclusively in the lower contact plane or exclusively in the upper contact plane.
4. The grass paver as claimed in claim 1, wherein the lower surfaces of the transverse portions lie exclusively in the upper contact plane or exclusively in the lower contact plane.
5. The grass paver as claimed in claim 1, wherein at least one of the contact planes is designed as a shearing protection plane and has ribs which are designed as projections and/or recesses.
6. The grass paver as claimed in claim 5, wherein the ribs of at least one shearing protection plane run parallel to one another.
7. The grass paver as claimed in claim 1, wherein at least one transverse portion and/or at least one longitudinal portion have/has a zigzag-shaped and/or wavy profile in top view.
8. The grass paver as claimed in claim 1, wherein the grass paver has a rectangular grid.
9. The grass paver as claimed in claim 1, wherein the grass paver has a square grid.
10. The grass paver as claimed in claim 1, wherein the contact planes and shearing protection planes are at a distance of at least 15 mm from one another.
Type: Application
Filed: May 18, 2009
Publication Date: Nov 5, 2009
Inventor: Rolf SCHEIWILLER (Hergiswil)
Application Number: 12/467,460