WO2003040496A1

WO2003040496A1 - Fastening device for fastening grid-like fence sections to a fence post

Info

Publication number: WO2003040496A1
Application number: PCT/EP2002/012326
Authority: WO
Inventors: Johannes Veenhof; Friedhelm Wiecher
Original assignee: Elkosta Security Systems Gmbh & Co. Kg
Priority date: 2001-11-05
Filing date: 2002-11-05
Publication date: 2003-05-15

Abstract

The invention relates to a fastening device for fastening grid-like fence sections to a fence post, which comprises a fastening flange (15), fastened lengthwise to the fence post (10) and extending parallel thereto, that is provided, on its side facing the fence section (20), with a structure (16). A base element (30) is snap-fit mounted on the fastening flange (15) and is provided, on the side (32) facing the fastening flange (15), with a structure (33) that engages with the structure (16) on the fastening flange (15). The base element (30) further carries bearing webs (37) for the horizontal struts (21) of the fence section (20).

Description

Fastening device for fastening grid-like fence fields to a fence post

The invention relates to a fastening device for fastening lattice-like fence fields to a fence post, with a fastening flange which is fastened longitudinally to the fence post and runs parallel to it and has a structure on its side facing the fence field. It also relates to a fence with such fasteners.

Such fastening devices are often required. As a rule, fence posts are set to delimit a certain area and then grid-like fence fields are then attached to them. These grid-like fence fields are, for example, structural steel mats. In order to enable fastening, the fence posts have a fastening flange, as is described, for example, in DE 28 27 950 C2. The fence posts proposed there with a triangular cross section and a T-shaped fastening flange attached to them have proven particularly useful, but other fence posts also occur.

For fastening the structural steel mats to the fastening flanges, for example, clamps are used, as are known from DE 25 23 949 C2 or in a more modern form from EP 0 481 100 B1.

When building fences from fence posts and fence fields, for example structural steel mats, a significant cost factor is the time it takes to set up. Construction is often not carried out by specialist personnel, but by unskilled or semi-skilled workers. On the other hand, high demands are placed on the stability of the overall system that has been built, which must also be met over many years. It must be avoided that unauthorized persons can cause clamps to slip by simply shaking them, so that they move along the fence post. The structural steel mats should also not be able to be detached from the fence posts by unauthorized persons. It is both to think of targeted attempts to penetrate unfenced territory, for example, as well as pure vandalism.

In addition, the fence posts cannot always be set up precisely vertically or at desired positions. Structural steel mats are also attached without paying attention to the horizontal orientation, so that they do not hang exactly or are not attached stably enough.

In order to enable this precise, careful hanging, the mentioned clamps from EP 0 481 100 B1 are widely used, since they have also proven themselves. It would be desirable to enable faster assembly without a loss of quality, since these clamps can only be assembled with tools, which is correspondingly time-consuming.

In contrast, the object of the invention is to propose a fastening device for fastening lattice-like fence fields to a fence post, which enables faster assembly of the fence fields.

This object is achieved in that a base device which can be snapped onto the mounting flange is provided, which has a structure on the side facing the mounting flange which engages in the structure on the mounting flange, and that the base device bears support webs for the horizontal struts of the fence field.

With such a fastening device, it surprisingly becomes possible to significantly simplify the assembly of fence fields on fence posts.

This is because it becomes possible to assemble the base devices in advance, which automatically remain at the correct height on the fence post without complicated screwing without slipping. There is a particularly preferred embodiment, which is characterized in that a clip device is provided which can be snapped into the base device, that the support webs at least reach the clip device when the clip device is engaged, and that there is a space for the horizontal and vertical struts of the Fence field between the base device and the clamp device is provided.

The fastening device essentially consists of three elements: First, the fastening flange is to be mentioned, which is also regularly provided for known fence posts and on which conventional clamps are mounted. There is no need to make any changes to this mounting flange on the fence posts, because this already has a structure in terms of production technology on its side facing the fence field. Knobs are also preferably used for this structure, that is to say in particular spherical segment-shaped elevations which are located on the surface of the fastening flange. Rectangular or other shaped elevations are also conceivable.

The second element, namely the base device, can now be attached to this mounting flange at the desired height. This base device is simply pressed with one hand by the person involved in the construction of the fence against the fastening flange. As a result, the T-shaped mounting flange expands the base device so that it can snap into place later. Since the base device has a structure on this side which engages in the structure on the fastening flange, it is not possible to slip off.

The fastening flange can be arranged on a fence post which, as in DE 28 27 950 C2, has a triangular cross section, but other, for example square or oval, cross sections are also possible. This structure on the side of the base device particularly preferably consists of dome-shaped recesses which have exactly the dimensions of the knobs on the fastening flange and also take over their arrangement. Since the knobs on the fence posts are already practically standardized distances, this is easy to provide.

The exact vertical location of the attachment of the base device can be measured or balanced during construction. After all the fence posts have been provided with the base device, the fence field can simply be attached. Since the base device can also be attached with one hand, this can also be done depending on the location and special situation during the attachment of the fence field. The fence field is simply placed on the support bars of the base device with its horizontal struts.

After placing the fence field, the third element essential to this invention, namely a clamp device, is used. This clip device is now snapped into the base device prepared for this purpose and in this way keeps the fence field clean between the clip device and the base device. The fence field is thus secured against loosening in every conceivable direction. The base device holds firmly in any direction on the mounting flange. The clamp device in turn secures the fence field against the base device.

In contrast to the prior art, the multi-part construction of the fastening device makes it much easier to erect the fence, since no tools are required and all parts temporarily hold each other during assembly.

Nevertheless, a particularly stable and robust fence is created after assembly. This fence also has the advantage that, in a preferred embodiment, it cannot be easily dismantled. This is a further requirement that is often made, because for reasons of vandalism or deliberate destruction attempts are made to dismantle the clamps and to move them by shaking so that the fence fields fall apart. However, this can be prevented by means of the grid elements and grid chambers preferred according to the invention. The fence fields and the fence posts each enter into the base devices and clamp devices preferably non-positive and at the same time positive connections that cannot be released from the outside. If necessary, the detent means can be disengaged from the outside using special tools.

The non-positive and at the same time positive connection of the base device to the fence post or the mounting flange is preferably achieved in that the base device has on the side facing the mounting flange wings that engage behind the mounting flange and ensure a positive and non-positive connection of the base device and the fence post. For this purpose, it can in particular be provided that the wings have a section which initially protrudes vertically from the side of the base device facing the fastening flange, which section merges into a section bent inwards and back to the base device and ends in a free wing end with an intermediate space to the base device.

With a slight pre-tension, these sashes can lie flush on the side surfaces of the fence post and at the same time end with the free sash end behind the fastening flange and clamp it firmly and non-positively. In particular, loosening is then practically impossible from the outside. In order to correspondingly hold the clamp device on the base device, it is preferably provided that the support webs project vertically on the side of the base device facing away from the fastening flange and that the clamp device has projections which can be inserted into recesses and latched there.

Alternatively, it can also be provided that the recesses are bores in the support webs themselves, or that the recesses are provided in the base device next to the support webs, for example as bores.

The base devices, like the clip devices, preferably consist of a plastic, in particular a thermoplastic, such as a polyamide or polypropylene. It is advantageous if the material is relatively stiff, weather-resistant, even in particular against low temperatures down to at least minus 20 ° C., and there is salt resistance. Also preferred is material resistant to ultraviolet radiation, for which polyamides and polypropylene are also suitable. For optical, but also for practical reasons, black or blackened plastic would be preferred.

As an alternative to plastic, a spring metal or sheet metal is also conceivable.

Compared to known mounting systems, the invention produces a number of advantages. In this way, closed post profiles made without recesses can be used. A weakening of the post cross-section is not necessary to carry out the assembly. The system is therefore insensitive to cavity corrosion. The fastening device is to be installed without tools. As a suspension part for a steel grille, it can be snapped onto the mounting flanges of proven and stable posts by hand. After installing the base, a clip can also be snapped in by hand as a securing part for the steel grille and the base.

A variable height lock in fine steps is possible. The fastening device also creates integrated noise insulation.

The base is supported laterally on the post to absorb a torque. There is a high level of stability when butt-mounted. A butt assembly of steel grids of the so-called "F" type is also possible, since the dimensions can be selected accordingly.

In addition, mat connectors are saved in the case of endless installation and the resulting four-clamp securing ensures particularly high installation safety with simple handling.

The majority of these advantages can also be achieved in another alternative embodiment of the invention. In this case, however, the base device is not formed in one piece, as in the preferred embodiments described above, but in two pieces. This two-piece base device has a first base element and a second base element, which are essentially mirror-symmetrical to one another with respect to a vertical plane in the installed state, which is perpendicular to the fence field. In addition, the two base elements can be connected to one another during the assembly process.

In contrast to the above embodiments, this variant has no clamp device and is therefore correspondingly less expensive. Here, during assembly, the two base elements are brought into the flange of the fence post from two sides, so that they largely encompass it, and then connected to the fence post. This is most conveniently done by means of a plug connection. As a result, the structures on the flange surface on the one hand and the opposite surface of the base device on the other hand also snap into one another. The two-piece base device according to this embodiment also has corresponding structures, which are either carried by one of the two base elements or are preferably evenly distributed over the two base elements.

The support webs are preferably provided on their upper side with a recess which enables the horizontal struts of the fence field to be inserted. This can also be provided in the above embodiments, but is particularly useful in the version in question here. The person skilled in the art will practically make the support webs somewhat stronger and more stable than is required in the other embodiments in order to increase the durability. With the above Embodiments can be worked less strongly and stably at this point, since the clamping device largely supports the load-bearing function.

Finally, it is a further object of the invention to propose a fence which is correspondingly easy to assemble.

This object is achieved by a fence with fence posts, each of which is provided with a fastening flange which is fastened to them longitudinally and runs parallel to them and has a structure on a side facing away from the fence post, with a fence field consisting of horizontal struts and vertical Struts, with plinths that are snapped onto the fastening flange of the fence posts and have a structure on their side facing the fastening flange that engage in the structure on the fastening flange, and with support webs on the plinths on which the horizontal struts of the fence field rest. With such a fence, too, an embodiment is preferred with clip devices which are snapped into the base devices, the support webs reaching at least as far as the clip device and with an intermediate space between the base device and the clip device, in each case on the horizontal and vertical struts of the fence field Fence posts are included.

Four exemplary embodiments of the invention are explained in more detail below with reference to the drawings. Show it:

Figure 1 is a perspective view of a first embodiment of the fastening device according to the invention;

Figure 2 is a perspective view of a second embodiment of the fastening device according to the invention;

Figure 3 is a perspective view of a third embodiment of the fastening device according to the invention;

Figure 4 is a perspective view of the embodiment of Figure 3 after installing a steel grille type "D", seen in perspective from the outside of the property;

Figure 5 shows the construction of Figure 4 seen from the inside of the property;

Figure 6 is a perspective view of the embodiment of Figure 3 when attaching a steel grille type "F", seen from the outside of the property;

Figure 7 shows the construction of Figure 6 seen from the inside of the property;

Figure 8 is a schematic sectional view of a double detent spring for

Use in an embodiment according to FIG. 3;

Figure 9 is a perspective view of a fourth embodiment of the fastening device according to the invention; Figure 10 is a perspective view of the embodiment of Figure 9 from a different direction; and

FIG. 11 shows the illustration from FIG. 9 during the assembly of the

Fastening device.

In the figure 1, a fence post 10 is shown on the left side of the sheet. The fence post 10 is a triangular cross-sectional profile bar. It can be a hollow rod or a profile rod filled with a filling compound. A side surface 11 of the profile bar, which forms an isosceles triangle in cross section, faces away from a fence field (not shown) which is yet to be attached, but its surface is parallel to this fence field. The two other side surfaces 12 and 13 form the same legs and enclose a corner with one another in cross-section, ie, in three dimensions, a vertically oriented edge 14. A T-shaped fastening flange 15 is formed on this edge 14. The foot of the fastening flange 15, which is T-shaped in cross section, is exactly on the edge 14, the cross line of the T is parallel to the side surface 11. The fastening flange 15 has a structure on the outside on its side facing the fence field still to be attached. In the illustrated and preferred exemplary embodiment, this is formed by regularly arranged protruding knobs 16.

The fence post is usually made of metal and has a coating that protects it against external environmental influences and is intended to prevent rust and wear. In order to increase the stability of the fence post 10, it also has integrally formed beads 17 on all three side surfaces 11, 12, 13, which also pass vertically. A large number of such fence posts 10 usually surround the area to be demarcated with the fence field, so that the fence field extends in each case from an adjacent fence post 10 to the next and possibly to further fence posts 10. The fence posts 10 are already in their vertical position when the fence field is to be mounted on them.

The fence field 20 (not shown in FIG. 1) has horizontal struts 21 and vertical struts 22. These struts 21 and 22 each surround meshes. The struts can also be double rods, flat steel rods or struts of another type.

The horizontal and vertical struts 21, 22 are each firmly connected to one another at their crossing points, for example welded. They can be parts of a structural steel mat and optionally have a plastic coating or other coating.

This fence field 20 is now to be attached to the fence post 10.

For this purpose, a base device 30 is first mounted on the fence post 10.

The base device 30 has a base plate 31, which after assembly is parallel to the fence field 20, to the surface of the fastening flange 15 and to the side surface 11 of the fence post 10. This base plate 31 has on its side 32 facing the mounting flange 15 a structure which engages in the surface structure of the mounting flange 15. In the illustrated embodiment, domes (not shown) are provided which have exactly the negative shape of the knobs 16 on the surface of the fastening flange 15.

From the outer edges of the base plate 31 or in any case from eccentric areas, wings 34 project in the direction of the fence post 10. These wings are elastic to a certain extent and are designed such that they first project perpendicularly from the base plate 31 and then towards each other and are bent back to the base plate 31. However, they do not touch the base plate 31 in this way, but end in wing ends 35 with a small distance or space 36 from the base plate 31. The wing ends 35 are therefore to a certain extent movable relative to the base plate 31. The distance of the wing ends 35 from the Base plate 31, that is, the size of the intermediate space 36, corresponds relatively exactly to the thickness of the fastening flange 15 of the fence post 10. The shape of the wings 34 in their region bent back towards the base plate 31 also corresponds exactly to the outer contours of the side surfaces 12 and 13 of the fence post 10, adjacent to the fastening flange 15 or the vertical edge 14.

If the base device 30 is therefore pushed with its base plate 31 against the fastening flange 15 of the fence post 10, the fastening flange 15 presses with its forwardly projecting region of the T-shaped cross section between the two wings 34 and presses them apart somewhat. It eventually gets past the wing ends 35 and the outer areas of the T-shaped cross section fit into the space 36 between the wing ends 35 and the base plate 31. As mentioned above, this area of the side of the base plate 31 is equipped with domes 33 which are precise fit the knobs 16 on the mounting flange 15. At the same time, the wings 34 jump with their wing ends 35 behind the mounting flange 15 and lie directly and closely against the side walls 12 and 13 of the fence post 10. The wing ends 35 are now exactly on the edge 14 behind the T-shaped cross section of the mounting flange 15 and hold it.

Thus, while the wings 34 prevent the base device 30 from detaching again from the fence post 10, the knobs 16 simultaneously engage in the calottes 33 and prevent a relative movement of the base 31 upwards or downwards on the fence post 10. They are thereby the narrow Tension of the wing 34 and the wing ends 35 held behind the mounting flange 15 in the long run. The desired exact height of the base device 30 with the base plate 31 relative to the fence post 10 can be determined beforehand by approximate balancing. In addition, this can be done practically with one hand, since no tools are required to push apart and snap the base device 30 onto the fence post 10, and no excessive force is required.

After assembly, the base device 30 is seated on the fence post 10 both positively and non-positively and can therefore absorb considerable loads.

The base device 30 has on the other side of the base plate 31 on the side facing away from the fence post 10 four outwardly projecting support webs 37. In Figure 1, these support webs 37 are each square cross-section and arranged directly at the corners of the base plate 31. They are of the same length and have the same structure.

A horizontal strut 21 of the fence field 20 can now be placed on the two lower support webs 37.

A horizontal strut 21 also fits into the space between the lower and the upper support webs 37. Vertical struts 22, including those of the double strut type, also fit between the two adjacent pairs of support webs 37.

Thus, if the base device 30 is mounted on the fence post 10, a fence field 20 with a horizontal strut 21 can initially be loosely inserted into the base device 30 and remain there because the top of the support webs 37 runs approximately horizontally. In embodiments that are not shown, these support webs 37 can additionally have notches or slight flats in order to give the horizontal struts 21 of the fence field 20 an additional hold. It is also possible to have a further projecting between two adjacent support webs 37 Provide web that exerts a slight pressure from the outside on a strut lying on the support webs 37 against the base plate 31. It is also possible to provide two such webs, which then lie opposite one another and between which the horizontal strut 21 is then inserted.

With such measures, the strut would be secured, at least temporarily, against accidental or arbitrary movements during the assembly process, which could lead to slipping out. This would not be sufficient for the final hold, because of course the fence field 20 is not secured against slipping out due to greater forces, wind, etc. in this state.

A clamp device 40 now serves this purpose. The clamp device 40 has an end plate 41 which, in the assembled state, is parallel to the base plate 31, to the fastening flange 15 and to the side surface 11. The end plate 41 is also approximately as large as the base plate 31 and also square and rectangular.

From the side of the end plate 41 facing the fence post, four projections 42 protrude toward the base plate 31, which is already installed. These four

In the embodiment shown in FIG. 1, projections are on the four

Corners of the end plate 41 are provided. They are targeted at four

Recesses 38 which are located centrally in the projections 37 of the base device 30. These recesses 38 can receive the projections 42. They also point out that they are not fully illustrated

Grid chambers 39 at the end or near the lowest point of the

Recesses 38 on. These grid chambers 39 are towards one another, that is, in

Direction of the center of the base plate 31 is provided. These grid chambers 39 can be seen in FIG. 1 in that for their formation, corresponding incisions are made parallel to the base plate 31, which intersect with the recesses 38 and protrude slightly beyond them. In the embodiment shown, the recesses 38 have an approximately rectangular, rounded cross section, but round bores with a circular cross section are also conceivable.

After the base device 30 is mounted and the fence panel 20 is suspended in it, the fence panel 20 is secured for a temporary hold, as mentioned above. The other activities involved in setting up the fence can therefore be carried out practically with one hand, since it is not necessary to hold the fence field 20 or to carry out any supporting work. The clamp device 40 can simply be placed from the outside with its four projections 42 onto the projections 37 of the base device 30, as a result of which the fence field 20 is located exactly between the base plate 31 and the end plate 41 and parallel to these two. Now the clamp device 40 is pressed against the base device 30 without any significant effort, the projections 42 end in hook-like grid elements 43, the distance from the end plate 41 of which is exactly the same as the distance of the grid chambers 39 from the ends of the projections 37 of the base device 30. As a result the hook-like grid elements snap exactly into the grid chambers 39 and are also no longer unlockable. The distance between the end plate 41 and the base plate 31 is now just large enough that the fence field 20 is positively received with its predetermined, usually standardized width and is tight. Rattle-free and still without damage, the fence panel 20 is thus held on the fence post 10.

An alternative embodiment is shown in FIG. Here again a fence post 10 is shown at the top right, in this case partially broken away. The side surfaces 12 and 13, the edge 14, the fastening flange 15 with the projections or knobs 16 can be seen. The base device 30 also has a base plate 31 here, on which, in this case, the spherical caps 33, which are provided as indentations only on the side facing away from the viewer, are indicated by dashed lines. Instead of the knobs 16 and the domes 33, it is also possible to find other forms of interlocking and matching elements and structures. These structures only have to be suitable for preventing vertical movement of the base device 30 relative to the fastening flange 15 after assembly.

The wings 34 are designed somewhat differently in the embodiment of FIG. In particular, in this case the support webs 37 are not provided with central recesses 38, but rather the recesses 38 lie next to the support webs 37 and extend into the wings 34. As a result, the grid chambers 39 are also provided in partial areas of the wings 34, which in this case are not aligned parallel to the base plate 31, but rather vertically. Otherwise, the embodiment shown is similar with regard to, for example, the positive and non-positive fastening of the wings 34 with the wing ends 35 and the space 36 on the side surfaces 12 and 13 behind the fastening flange 15 of the fence post 10.

Here too, a horizontal strut 21 of the fence panel 20 is suspended between the upper and lower support webs 37 of the base device 30.

The mirror-symmetrical arrangement of the base device 31 in the embodiments of FIGS. 1 and 2 is not technically mandatory, but it is advantageous for the assembly. During the fence construction, it is in fact irrelevant in which orientation the base device is taken from the supply by the persons commissioned with the construction and held during the assembly. The clamp device 40 is also constructed similarly to the embodiment from FIG. 1. Here, too, four projections 42 extend from the end plate 41 perpendicularly in the direction of the fence post 10 and can then be inserted into the recesses 38 in the base device 30.

In both embodiments, the end plates 41 can also be provided with additional stabilizations or, for example, also with the logo of the fence manufacturer or at the request of the customer, since there is a perfectly shapely and elegant surface which, unlike in the prior art, no longer exists can be damaged by mechanical bending, screws or similar assembly work.

Both the base device 30 and the clamp device 40 preferably consist of a plastic material. Production from sheet metal or spring metal is also conceivable. However, plastic has the advantage that a particularly rattle-free fit of the base device and the clamp device on the fence post is possible and, in particular, that the valuable coating of the fence post on its outside cannot be scratched or impaired, even if particularly unguided or unsuccessful installation - work done.

The plastic material used is preferably weatherproof, in particular also against lower temperatures down to at least -20 ° C. There is also salt resistance and mechanical durability over several years, which ensures positive and non-positive tension maintenance. Polyamide or polypropylene resistant to ultraviolet radiation is preferred, in particular in black or blackened form.

The material is preferably made so stiff that a non-destructive removal of the clamp device 40 and / or the base device 30 from the fence post 10 is no longer possible. The grid elements 43 are firmly hooked into the grid chamber 39, specifically in an area that is not accessible from the outside. If necessary, the possibility can also be provided here with to intervene with a special tool and loosen the hook. In practice, however, one will simply destroy the clamp device and / or the base device, for example when carrying out fence repairs or when replacing certain areas of the fence field or some fence posts, and the fence field 20 can then be removed. Even during this destruction process, the fence field 20 is not affected or damaged, it is sufficient to separate the plastic projections with a suitable tool.

In this way, unauthorized dismantling by vandalism can be easily prevented without completely preventing repairs.

The embodiment shown in FIG. 3 essentially corresponds to the embodiment from FIG. 1. For the basic structure, reference can therefore be made to the description of the figures for FIG. 1, some differences are emphasized below.

In contrast to the embodiment according to FIG. 1, the support webs 37 are not completely symmetrical in this case. The lower support webs 37 a differ from the upper support webs 37 b. The lower support webs 37 a have slightly protruding retaining lugs 37 c at their end. These retaining lugs 37 c prevent the horizontal struts 21 from slipping unintentionally from a fence field 20 which is suspended but has not yet been secured by means of a clamping device 40.

In the embodiment according to FIG. 3, the grid elements 43 are placed on a handle. They engage in latching chambers 39 shaped in the same way on the handle. In this way, slipping of the raster elements 43 from the holding edge is completely prevented.

In addition, the locking chambers 39 visible in FIG. 1 from the outside of the property are moved to the rear in the embodiment according to FIG. 3, that is to say after the assembly, the inside of the property. In this way, people staying outside the property do not get a starting point for Manipulation thoughts. This also prevents you from attempting to manipulate or destroy anything at all, which reduces the risk of damage. In addition, any possible disassembly is possible in this way from the inside of the property, which makes work easier for the fence builder with his special tool.

The symmetrical design of the base device 30 in FIG. 1 is canceled, as mentioned, by the extension of the lower support webs 37a with the retaining lug 37c. On the top of the base device 30, a lid 34 d is formed on each side between the wings 34, the free wing ends 35 and the base plate 31, which prevents the embedding of dirt, in particular leaves and the like.

The covers 34 d are each designed as an extension of the upper walls of the upper support webs 37 b and connected to the wings 34 so that, on the one hand, the spring effectiveness of the base plate 31 and the free wing ends 35 is maintained and, on the other hand, a back bracing on the free wing ends 35 to increase the contact pressure between the base plate 31 and the mounting flange 15 and a substantial improvement in rigidity is achieved.

The base plate 31 is provided with an arrangement of compression ribs 31 s, as is the opposite surface of the end plate 41 with compression ribs 41 s. During assembly of the clamp device 40, the compression ribs 41 s are elastically and plastically deformed in the contact zones of the grid-like fence field 20 or 21 and 22 as a result of the pressing force. In this way, it is achieved that the tolerances of the structural thickness or clamping strength of the fence panels 20 are compensated for. At the same time, a virtually play-free fastening is made possible and, in addition, a noise insulation effect influenced by changing horizontal loads, which can be caused by wind, for example.

In addition, a conceivable displacement of the fence panel 20 within the fully assembled fastening device is made more difficult, since the compression ribs 41 s at least partially enclose these struts 21, 22 at their deformation zones.

The perspective representations, together with the fully assembled fence panels in FIGS. 4 to 7, also clearly show how assembly can proceed in practice.

First, the base device 30 is pressed with the side of the cover 34 d above with one hand from onto the mounting flange 15 on the post 10. The free wing ends 35 do not yet engage behind the fastening flange 15. They simply spread out sideways at an angle, in such a way that the unloaded base device 30 neither slides down nor falls off.

In this adhesive mounting state, if desired or necessary, the base device 30 can easily be changed in height by hand or moved along the mounting flange to the desired mounting height.

At the desired mounting height, the base device 30 is now preassembled with one hand by squeezing the left and right support webs 37, that is to say in the horizontal plane. This compression takes place until the space 36 between the free wing ends 35 and the base plate 31 is enlarged so that the free Wing ends 35 engage behind the mounting flange 15 with a clearly perceptible snap sound.

Height adjustment is still possible now and without tools, by pressing the left and right support webs 37 with one hand until the free wing ends 35 are relieved and lift off according to the height of the knobs 16. As a result, the base device 30 is then displaceable along the fastening flange 15.

Now the fence panel 20 is hung.

Then the clamp device 40 with the raster elements 43 is inserted into the recesses 38 of the base device 30. It can then also be snapped in and now fixes both the fence field 20 and the base device 30. The fastening system can thus be loaded.

The following technical details are also of interest here: when the base device 30 is preassembled, the base plate 31 is also used as a spiral spring, in such a way that after reaching behind the free wing ends 35, a certain residual prestress is retained behind the fastening flange 15. This residual prestress is characterized in that the support webs 37 of the left and right sides are no longer in the initial parallel position, but are slightly inclined to one another. This leads to a reduced distance between the free ends of the support webs 37, which distance is proportional to the pretension.

Appropriate shaping of both the recesses 38 and the raster elements 43 and the projections with bevels mentioned below makes it easy to insert the clamping device 40 into the base device 30. The insertion force increases in proportion to the insertion path. The lateral outer surfaces of the projections 42 are namely designed with a wedge-shaped bevel as wedge surfaces 44. These wedge surfaces 44 press the reduced-free ends of the Support webs 37 outwards until the parallel contact surfaces 45, which adjoin the wedge surfaces 44, are immersed in the recesses 38.

The bias in the base plate 31 is clamped back over the support webs 37, the cover 34 d and the compression ribs 31 s, 41 s and the wings 34 to the free wing ends 35 to increase the contact pressure between the base plate 31 and the mounting flange 15.

FIG. 8 shows an alternative embodiment for a raster element 43, namely a symmetrical double ratchet spring.

FIG. 9 shows a fourth embodiment which forms a less expensive variant of a fastening device according to the invention.

A fence post 10 with an attachment flange 15 and a structure 16 remains unchanged. Here, however, a base device 30 with two base elements 30 a and 30 b is used. The two base elements 30 a, 30 b are mirror-symmetrical about a central plane, which in the illustration is perpendicular to the fastening flange 15 and thus also to the fence field 20 (not shown here). The base elements 30 a, 30 b now each have half of the base plate 31. Here, too, domes 33 are provided on the back of the base plate opposite the knobs 16 on the fastening flange 15.

In particular, the representation of the same embodiment in FIG. 10 from a different perspective shows the area of the fastening element 30 which projects outwards. The base elements 30 a, 30 b engage with parts of their base plate 31 behind the mounting flange 15 and with other areas in front of the mounting flange 15. They largely surround this mounting flange 15 after they have been plugged together.

For the plugging together, a plug connection 30 s is provided between the two elements of the base plate 31, which can be clearly seen in FIG. 11. Here, the two base elements 30, 30 b are still separated from one another during the assembly process.

From the base plate 31 of the two base elements 30 a and 30 b, a support web 37 projects vertically forward. Both support webs have essentially identical recesses 37 f on the top. The horizontal struts 12 of the fence field 20 can be inserted into these recesses 37 f in the support webs 37.

For assembly, the two base elements 30 a, 30 b are placed from both sides around the mounting flange 15 of the fence post 10, at the intended height. The plug connection 30 s interlocks and the calottes 33 fit the knobs 16 on the outside of the mounting flange 15, so that a good hold is immediately obtained after the plug connection has been joined and snaps into place.

The plug connection 30 s can be formed analogously to the plug connection from the first embodiments of the clip device into the base device, of course by exchanging the corresponding elements. Both an inseparable base device that can only be dismantled by destruction can be created, and also a version that can be dismantled with specialist tools or in a simple manner. After the base devices 30, each consisting of two base elements 30 a, 30 b are mounted on the fence posts 10 at the intended height, the fence panels 20 can be inserted with their horizontal struts 21 into the recesses 37 f of the support webs 37, so that a stop for the fence field 20 on a larger number of fence posts.

After the fence panel 20 is suspended in this way, for further stabilization and for the purpose of firmly holding the fence panel 20, further base devices 30 of identical shape, that is to say also consisting of two base elements 30 a, 30 b at a different height, can be placed on the fence posts 10 exactly upside down are mounted so that the downward-facing recesses 37 f grip from above over other horizontal struts 21 of the same fence field 20 and thus secure them downwards.

In this way it is ensured that the fence field 20 is not lifted upward from the base device 30 by sliding through unauthorized or simply by wind or other movement and slides out of the recesses 37c and is thus removed from the fence posts. The two base devices 30, which now secure a horizontal strut 21 once upwards and once downwards on each fence post 10, thus hold the fence field 20 securely and stably on the fence posts 10.

LIST OF REFERENCE NUMBERS

fence posts

side surface

edge

mounting flange

Projections or knobs

beading

Fence panel horizontal strut vertical strut

Base device a Base element b Base element s Plug connection

Base plate s Compression ribs on the base plate

page

domes

Wing d Lid for wing and base device

wingtips

gap

Support ridges a lower support ridges b upper support ridges c retaining lugs on the lower support ridges f recess on top of the support ridge

recesses raster chamber

Clamping device end plate upsetting ribs on the end plate protrusions grid elements wedge surfaces contact surface

Claims

claims

1. Fastening device for fastening lattice-like fence fields to a fence post, with a fastening flange (15) which is fastened longitudinally to the fence post (10) and runs parallel to the latter and has a structure (16) on its side facing the fence field (20). characterized in that a base device (30) which can be latched onto the fastening flange (15) is provided, which has a structure (33) on the side (32) facing the fastening flange (15) which fits into the structure (16) engages on the mounting flange (15), and that the base device (30) carries support webs (37) for the horizontal struts (21) of the fence field (20).

2. Fastening device according to claim 1, characterized in that the structure (16) on the fastening flange (15) has knobs (16), and that the structure on the fastening flange (15) facing

Side (32) of the base device (30) has domes (33) which are adapted to the shape and arrangement of the knobs (16).

3. Fastening device according to claim 1 or 2, characterized in that a clamp device (40) is provided which can be latched into the base device (30), that the support webs (37) with the clamp device (40) engaged at least up to the clamp device (40 ) reach, and that a space for the horizontal and vertical struts

(21, 22) of the fence field (20) is provided between the base device (30) and the clamp device (40).

4. Fastening device according to one of the preceding claims, characterized in that the base device (30) on the fastening flange (15) facing side (32) has wings (34) which engage behind the fastening flange (15) and form and Ensure a positive connection between the base device (30) and the fence post (10).

5. Fastening device according to claim 4, characterized in that the wing (34) is initially perpendicular to the

Fastening flange (15) facing side (32) of the base device (30) projecting section which merges into an inward and backward section to the base device (30) and in a free wing end (35) with a space (36) to the base device ( 30) ends.

6. Fastening device according to one of the preceding claims, characterized in that on the side of the base device facing away from the fastening flange, the support webs (37) project vertically, that the clip device (40) has projections (42) which can be inserted into recesses (38) and can be snapped into place.

7. Fastening device according to claim 6, characterized in that the recesses (38) are provided in the support webs (37).

8. Fastening device according to claim 6, characterized in that the recesses (38) are provided next to the support webs (37) in the base device (30).

, Fastening device according to one of the preceding claims, characterized in that four support webs (37) of identical construction are provided, each of which is arranged mirror-symmetrically to both imaginary center lines of the base device (30).

10. Fastening device according to one of the preceding claims, characterized in that the lower support webs (37 a) are each equipped at their ends with upstanding retaining lugs (37 c).

11. Fastening device according to one of the preceding claims, characterized in that in addition to the support webs one or more resiliently obliquely directed to the imaginary horizontal center line holding nipples are provided, which an at least temporary pressure on horizontal struts (21) of the fence panel (20) against the Exercise the base device (30).

12. Fastening device according to one of the preceding claims, characterized in that the projections (42) of the clamp device are provided with grid elements (43) which can be latched in grid chambers (39) in the recesses (38).

13. Fastening device according to one of the preceding claims, characterized in that the base device (30) is provided on its upper side with a cover (34 d) which covers the wings (34) upwards.

14. Fastening device according to one of the preceding claims, characterized in that the base plate (31) on the side opposite the clamp device (40) is equipped with an arrangement of compression ribs (31 s).

15. Fastening device according to one of the preceding claims, characterized in that the end plate (41) of the clamp device (40) is equipped on the side opposite the base device (30) with compression ribs (41 s).

16. Fastening device according to one of the preceding claims, characterized in that the base device (30) and / or the clamp device (40) each consist of plastic material, in particular a thermoplastic, preferably of polyamide or polypropylene.

17. Fastening device according to one of the preceding claims, characterized in that the base device (30) and the clamp device (40) consist of identical material.

18. Fastening device according to one of the preceding claims, characterized in that the base device (30) is in one piece.

19. Fastening device according to one of claims 1 to 17, characterized in that the base device (30) is in two or more pieces.

20. Fastening device according to claim 19, characterized in that the two-piece base device (30) has a first base element (30 a) and a second base element (30 b) which are substantially mirror-symmetrical to one another with respect to a vertical plane in the installed state, which is perpendicular to the fence field (20), and that the two base elements (30 a, 30 b) can be connected to one another during the assembly process.

21. Fastening device claim 20, characterized in that the two base elements (30a, 30 b) can be connected via a plug connection.

22. Fastening device according to one of the preceding claims, characterized in that the support webs (37) are provided on their upper side with a recess which enables the horizontal struts (21) of the fence field (20) to be inserted.

23. Fence, with fence posts (10), each of which is provided with a fastening flange (15) which is fastened to them lengthwise and runs parallel to them and has a structure (16) on its side facing away from the fence post (10) a fence field (20), consisting of horizontal struts (21) and vertical struts (22), with base devices (30) which are snapped onto the fastening flange (15) of the fence posts (10) and on the fastening flange (15) facing side (32) have a structure (33) which engage in the structure (16) on the mounting flange (15), and with support webs (37) on the base devices (30) on which the horizontal struts (21) of the fence field (20) rest,

24. Fence according to claim 23, with clip devices (40) which are latched into the base devices (30), the support webs (37) reaching at least up to the clip device (40) and with a space between the base device (30) and the Clamping device (40) in which the horizontal and vertical struts (21, 22) of the fence field (20) are each received on a fence post (10).