EP0676169A1 - Grids or mats; in particular floor mats and/or scrapers - Google Patents

Abstract

The mat has several parallel profiled rods (2) connected spaced apart by holders (3) off-set underneath. Independently of and/or in addition to the holders are downwardly aligned support feet (20) which have coupling members (22) projecting fixedly up from the top of their foot plate (21) to engage from below in the profiled longitudinal grooves of the rods at places which are different from the head parts of the holders. The thickness of the coupling attachments matches the opening width of the groove profile. Each support foot can be turned and locked by its attachment in the groove profile with positive clamping fit. The attachment has a rear-cut profiled shape (25,26) matching the groove profile. <IMAGE>

Description

• mit einer Vielzahl von mit ihren Längsachsen parallel zueinander, aber im wesentlichen quer zur Haupt-Laufrichtung angeordneten Profilstäben,
• die durch Halteelemente auf Abstand miteinander verbunden sind,
• wobei die Halteelemente eine gegenüber den Oberkanten der Profilstäbe nach unten versetzte Lage haben,
• und mit von ihrer Oberseite hochragend angeformten sowie hinterschnitten profilierten Kopfteilen als formschlüssige Kupplungsglieder in angepaßt hinterschnitten gestaltete Längsnuten an der Unterseite der Profilstäbe einrückbar sind.

The invention relates to a grate or a mat. in particular a running mat and / or a wiper

• with a large number of profile bars arranged parallel to one another with their longitudinal axes, but essentially transversely to the main running direction,
• which are spaced apart by holding elements,
• wherein the holding elements have a position offset downward from the upper edges of the profile bars,
• and can be inserted with form-fitting coupling members in adapted undercut longitudinal grooves on the underside of the profiled bars with the top parts formed in a protruding manner and undercut profiled head parts.

Gratings or mats of this type are already part of the prior art due to EP-A-21 12 573 and DE-A1-38 21 722. Running mats and / or wipers with these generic features are already known, for example, from EP-A1-0 125 618, DE-U1-90 03 103 and DE-A1-41 496.

While gratings or mats of the type mentioned first can be used advantageously for walkable covering of channels, basins or pits, because their profile bars are traversed by inherently designed web or strip-like holding elements and therefore have a relatively large overall height require, the running mats and / or doormats of the other type can be created with a relatively low overall height, because they are designed for large-area and thus dimensionally stable support during use. Compared to the grids or mats with the retaining elements traversing the profile bars, the relatively flat-construction running mats and / or foot wipers have the further advantage that they allow simple assembly of all individual parts - to a certain extent according to the push-button system. In addition, simple and inexpensive manufacture is possible in practically any surface size that occurs with such running mats and / or wipers. All of the individual elements of these running mats and / or wipers to be coupled with one another can be connected to one another on a simple assembly table, in that they are placed one on top of the other in a specific order and are locked together by pressure from above. Therefore, this assembly unit is particularly suitable for the construction of running mats and / or wipers in workshops for the disabled, because it allows a meaningful occupation of the people working there.

The practical use of such running mats and / or floor wipers has advantages over grates or mats of the first type in that they can be laid over a large area with an extra flat design and can thereby be made effective as a landfill for dirt and moisture. This particular advantage results from the use of holding elements used to connect the profiled bars, which not only have a position offset downwards from the upper edges of the profiled bars, but can also extend over the entire length of the profiled bars and are thus coupled to them, that a channel with three sides is formed between two adjacent profile bars. The dirt and wet landfill limited by these channels can be disposed of in an environmentally friendly manner, namely simply cleaned with a combined wet / dry electric vacuum cleaner.

In the simplest case, the running mats and / or wipers available with an extra flat design can be laid directly on a flat floor surface, especially outside of buildings.

More often, mainly within building areas, it is desirable or even a requirement to lay running mats and / or wipers in shallow floor depressions. In the case of grids or mats for the walkable covering of channels, basins, pits or the like, on the other hand, there is a requirement to include them in appropriately recessed edge-limiting paragraphs. The edges of the running mats and / or doormats or grids or mats are then encompassed by angular frames which delimit these depressions or shoulders.

Since the flat floor depressions or shoulder heels are designed in practice to accommodate different heights of the angular frames, e.g. of 22 mm, 25 mm or also 27 mm, this results in the inadequacy that also running mats and / or doormats or grids or mats are included such different installation heights must be manufactured and kept ready.

On the other hand, because there is a requirement that running mats and / or wipers or grates or mats placed directly on flat floor surfaces should have the lowest possible construction height, for example of 16 mm, it is clear that the production and maintenance of the correspondingly different heights dimensioned running mats and / or wipers or grids or mats a considerable effort must be driven.

The invention now aims to minimize the effort for the production and preparation of running mats and / or wipers as well as rust or mats of the generic type, that is to say to ensure their usability with only a little additional effort, if they are to be laid in shallow recesses with different frame heights. It is therefore a matter of designing generic running mats and / or wipers or grates or mats which - even subsequently - ensures that their height is adapted to different frame heights of the shallow depressions provided for their reception. It is therefore an object of the invention to provide a running mat and / or a wiper or a grate or a mat which has a basic design which can be easily adapted to different installation cases.

• daß unabhängig von und/ oder zusätzlich zu den Halteelementen benutzbare, nach abwärts gerichtete Stützfüße mit einem fest von ihrer Oberseite ihrer Fußplatte hochragenden Kupplungsansatz versehen und mit diesem von unten her an von den Kopfteilen der Halteelemente verschiedenen bzw. unbesetzten Stellen in das Profil der Längsnut der Profilstäbe einrückbar sind,
• daß dabei die Dicke des Kupplungsansatzes die Öffnungsweite des Profils der Längsnut angepaßt ist,
• daß der Kupplungsansatz in Normalrichtung zur Dicke eine dem Profil der Längsnut angeglichene, hinterschnittene Profilgestalt hat,
• und daß jeder Stützfuß durch Winkelverdrehung mit seinem Kupplungsansatz im Profil der Längsnut mit formschlüssigem Klemmsitz verriegelbar und/oder verankerbar ist.

The solution to this problem according to the invention basically consists in

• that regardless of and / or in addition to the holding elements usable, downward-facing support feet with a fixed from their top of their base plate coupling approach and with this from below on the head parts of the holding elements different or vacant positions in the profile of the longitudinal groove of Profile bars are indentable,
• that the thickness of the coupling attachment is adapted to the opening width of the profile of the longitudinal groove,
• that the coupling approach in the normal direction to the thickness has an undercut profile shape which is matched to the profile of the longitudinal groove,
• and that each support leg can be locked and / or anchored by angular rotation with its coupling shoulder in the profile of the longitudinal groove with a positive clamping fit.

An advantage of this configuration is that, in addition to the individual parts (profile bars and holding elements) required to create the running mats and / or foot wipers or grids or mats, only supporting feet with different heights of their foot plate need to be kept available, which can then be used as required. Anchor in the profiles of the underside longitudinal groove of the profile bars leave in order to match the respective installation case.

The principle of the solution according to the invention is already readily applicable if each profile bar suitable for the construction of running mats and / or foot wipers or grids or mats contains only a longitudinally arranged, undercut longitudinal groove and the support feet adhere to the coupling areas of the holding elements with their coupling attachment Insert it into the undercut profile of the longitudinal groove of the profile bars and lock and / or anchor it by rotating it at an angle. This equipment option is particularly suitable for gratings or mats of the type in which the profile bars are traversed by the holding elements in the form of strips or webs.

According to the invention, however, the possibility is also open that each profile bar contains a plurality of longitudinal grooves arranged parallel to one another and each having an undercut profile, one of which is then provided as a locking and / or anchoring engagement for the coupling approaches of support feet.

Profile bars according to the invention can preferably be used, each of which has three parallel longitudinal grooves on the underside, one of which runs longitudinally and is provided at least as a locking and / or anchoring engagement for the coupling approaches of support feet. In the case of running mats and / or floor wipers which can be created using such profiled bars, holding elements are preferably used which can be inserted into an adapted undercut shaped longitudinal groove on the underside of the profiled bars with a head part which is molded from the top side and has an undercut profiled profile.

By using the profile bars, each containing three parallel longitudinal grooves on the underside, it is possible to create running mats and / or foot wipers, in which a channel with three sides is formed between two adjacent profile bars, which can then be made effective as a landfill for dirt and moisture . In this case, the downward-facing support feet can be inserted from below into the groove profile with an undercut cross-sectional shape, which is open on the underside on the longitudinal center of the test specimen, because the thickness of the coupling shoulder is adapted to the opening width of the groove profile is. Since the coupling approach in the normal direction to the thickness has an undercut profile shape matched to the groove profile, each support leg can be locked and / or anchored with its coupling approach in the groove profile with a form-fitting clamp fit.

The invention further provides that the underside groove profile of the profile bars and also the coupling shoulder of the support feet have an approximately T-shaped or dovetail undercut cross-sectional shape, in which the optimal clamping tension comes into effect directly on the underside of the profile bars on the support feet.

A particularly favorable, namely especially for the disabled to be accomplished assembly work is possible in that the shaft or neck of the coupling lugs on the support feet has a square cross-section and the distance between its parallel pairs of surfaces is adapted to the opening width of the groove profile of the profile bars. After the angular rotation causing the coupling process has been carried out, the square cross-sectional shape of the shaft of the coupling attachments automatically brings about the correct position fixing of the support feet on the profile bars.

It has also proven useful to give each support foot either a polygonal shape, For example, to give a square or hexagonal, or also a circularly limited base area and to provide the size of this base area in accordance with the respective needs or purposes for the running mat and / or the wiper. It is also important that support feet with different support heights, e.g. of 6, 9 and 11 mm, are available so that a running mat and / or a foot scraper with the low overall height of 16 mm can be used directly in angled frames of 22 mm, 25 mm and 27 mm can be upgraded.

This upgrade work on the running mats and / or wipers of minimal height can be considerably facilitated according to the invention if the support feet underneath a tool engagement, e.g. contain a diametrical slot, a cross slot, a polygonal recess or the like, which allows the insertion of a suitable tool for performing the angular rotation.

In some cases, it can also prove to be advantageous if the surface areas of the support feet adjacent to the coupling attachment with the profiled bars, e.g. Ribs, corrugations, cords or the like are provided to support the rotation of the support feet in their locking and / or anchoring position on the profile bars.

The profile bars and the support feet for the running mats and / or wipers according to the invention can be made of the same or similar materials, for example of metal or plastic. However, it is particularly recommended if the profile bars are made of a metallic material, for example aluminum, and the support feet are made of a non-metallic material, for example plastic. The use of aluminum for the profile bars has the advantage that it can be recycled again and again without any loss of quality, i.e. it is the ideal material for an ecological effect on the circulation. The support feet are made of a halogen-free, thermoplastic elastomer manufactured, then not only its problem-free recyclability is guaranteed, but there are also excellent application properties for indoor and outdoor use.

Figur 1

im Querschnitt ein Teilstück einer Laufmatte und/oder eines Fußabstreifers, die bzw. der flach auf eine ebene Bodenfläche auflegbar ist,

Figur 2

einen der Fig. 1 entsprechenden Querschnitt durch eine Laufmatte und/oder einen Fußabstreifer, die bzw. der jedoch für eine Verlegung in einer von Zargenrahmen begrenzten, flachen Bodenvertiefung nachgerüstet ist,

Figur 3

in räumlicher Draufsichtdarstellung und im Querschnitt ein Teilstück einer Laufmatte und/oder eines Fußabstreifers gemäß Fig. 2,

Figur 4

in vergrößerter Darstellung einen Teilquerschnitt eines Profilstabes einer Laufmatte und/oder eines Fußabstreifers, mit dem unterseitig ein nachgerüsteter Stützfuß in Verbindung steht,

Figur 5

wiederum einen Teilquerschnitt eines Profilstabes, an dem der Montagevorgang für die Nachrüstung mit Stützfüßen verdeutlicht wird,

Figur 6

eine Draufsicht auf einen Stützfuß, wie er nach den Fig. 4 und 5 in Benutzung genommen ist, die

Figuren 7, 8 und 9

in Ansicht von vorne, Seitenansicht und Draufsicht eine zweite Bauform von Stützfüßen, die

Figuren 10, 11 und 12

wiederum in Ansicht von vorne, in Seitenansicht und in Draufsicht eine dritte Bauform von Stützfüßen für die Kupplung mit Profilstäben von Laufmatten und/oder Fußabstreifern, die

Figur 13

in räumlicher Draufsichtdarstellung ein Teilstück eines Rostes oder einer Matte in gegenüber der Fig. 3 abgewandelter Bauform,

Figur 14

in vergrößerter Darstellung einen Profilstab des Rostes bzw. der Matte nach Fig. 13, dem ein Teilstück eines Halteelementes und ein Stützfuß zugeordnet ist, während

Figur 15

im Querschnitt ein Teilstück eines Rostes bzw. einer Matte wiedergibt, der bzw. die gewissermaßen gleichzeitig Ausbildungsmerkmale der Bauformen nach den Fig. 3 und 13 nutzt.

Further features and advantages of the subject matter of the invention are subsequently explained using the exemplary embodiments illustrated in the drawing. Show it

Figure 1

in cross section a section of a running mat and / or a wiper which can be placed flat on a flat floor surface,

Figure 2

1 cross section corresponding to FIG. 1 through a running mat and / or a foot wiper, which, however, is retrofitted for laying in a flat floor recess delimited by frame frames,

Figure 3

in a spatial plan view and in cross section a section of a running mat and / or a wiper according to FIG. 2,

Figure 4

an enlarged representation of a partial cross section of a profile bar of a running mat and / or a wiper with which a retrofitted support foot is connected on the underside,

Figure 5

again a partial cross section of a profile bar, on which the assembly process for retrofitting with support feet is illustrated,

Figure 6

a plan view of a support foot, as it is taken into use according to FIGS. 4 and 5, the

Figures 7, 8 and 9

in front view, side view and top view of a second design of support feet, the

Figures 10, 11 and 12

again in front view, in side view and in top view, a third design of support feet for the coupling with profile bars of running mats and / or wipers, the

Figure 13

a spatial plan view of a portion of a grate or mat in a modified form compared to FIG. 3,

Figure 14

in an enlarged view, a profile bar of the grate or mat according to FIG. 13, to which a section of a holding element and a support foot are assigned, while

Figure 15

shows in cross section a portion of a grate or a mat that uses the training features of the designs according to FIGS. 3 and 13 to a certain extent.

1 of the drawing shows a section of a running mat and / or a foot scraper 1 which has a plurality of profile bars 2 running parallel to one another with their longitudinal axes. These profile bars 2 extend essentially transversely to the running direction and are connected to one another at a distance by holding elements 3, which can extend continuously over the entire length of the profile bars 2.

The holding elements 3 have a position which is offset downwards relative to the upper edge of the profiled bars 2, in order to form a channel 4 delimited on three sides between two adjacent profiled bars 2, which has a closed bottom 5 and a height 6 and a Has width 7. It is important that the width 7 of the channel 4 is dimensioned at least equal to its height 6. However, the smallest width 7 of each channel 4 should preferably be dimensioned larger than its height 6. On the other hand, however, it is provided that the width 7 of each channel 4 is made smaller than the width 8 of the individual profiled bars 2. In practice, it has proven itself to carry out the width 7 of the grooves 4 to the width 8 of the profiled bars 2 in a ratio which is equal to or greater than 0.4 but less than 1.

Each profile bar 2 forms the support for an insert strip 9, which can preferably consist of resilient material, such as felt, brush bodies, rubber or textile covering, and — preferably replaceably — is fixed to the profile bars.

The total height 10 of the profile bars 2 with their insert strips 9 can be chosen so that it falls below the width 8 of the profile bars 2 and is in a ratio that is between 0.5 and 0.9. The insert strips 9 are connected to the profile bars 2 so that their free height 11 to the total height 10 of the profile bars 2 with insert strips 9 is in a ratio that is between 0.2 and 0.5.

The grooves 4 between adjacent profile bars 2 of the running mat and / or the scraper 1 form relatively large-volume collecting areas for dirt and moisture, which are stripped from the soles of the shoes by means of the insert strips 9. Because of the relatively large width and the essentially rectangular profile shape of the grooves 4, these can be easily cleaned from above in a simple manner, for example with the slot nozzle of an electric vacuum cleaner. The slot nozzle can namely be inserted into each channel 4 from above and then shifted in the longitudinal direction thereof.

In the exemplary embodiments of a running mat and / or a wiper 1 shown in the drawing, the profile bars 2 and the holding elements 3 are produced as independent components. The profile bars 2 can be produced, for example, by extrusion from aluminum and the holding elements 3 by extrusion from a plastic material. The aluminum of the profile bars 2 can be recycled in any case without loss of quality, while that applies to plastic material only under certain conditions. It is therefore important to use a recyclable plastic, for example a halogen-free, thermoplastic elastomer, for the production of the holding elements 3.

The holding elements 3 carry edge webs 12 projecting from their base 5, each of which has an undercut designed head part 13 at its upper end. Undercut grooves 14 are formed in the underside of the profiled bars 2 along their longitudinal edges, in such a way that they each assume an elevated position relative to a central foot part 15. The arrangement of the undercut grooves 14 is such that, in addition to the head parts 13, they can also accommodate the protruding edge webs 12 of the holding elements 3. This configuration namely ensures that the holding elements 3 located between the adjacent profile bars 2 can then form an additional floor support for the running mat and / or the scraper 1 if they are to be laid directly on a flat floor surface, such as that Fig. 1 shows the drawing. In this case it is advantageous if the holding elements 3 are provided with roughening on the underside, for example longitudinal corrugations, waffle patterns or the like, by means of which an increased slip resistance of the running mat and / or doormat is achieved.

The connection between the profile bars 2 and the holding elements 3 can be achieved in an advantageous manner in that the undercut grooves 14 and the undercut head parts 13th are compressed transversely to their longitudinal direction in the manner of a snap-lock connection. However, it is also conceivable to insert the holding elements 3 with their undercut head parts 13 in the longitudinal direction into the undercut groove 14 of the profile bars 2. However, the last-mentioned assembly method requires a work space whose length is greater than twice the length of the profile bars 2 and holding elements 3 to be assembled.

It should be mentioned at this point that there is also the possibility of producing a plurality of profile bars 2 and a plurality of holding elements 3 as a one-piece molded part, for example by extrusion from a suitable plastic material. In this case, the one longitudinal edge of the molded part is formed by a profile bar 2, which contains an undercut groove 14 on the underside along its boundary edge. The other longitudinal edge of the molded part, on the other hand, is delimited by a holding element 3, which carries an undercut head part 13 on the upstanding edge web 12. Adjacent molded parts of this type are each coupled to one another in that the head part 13 of the holding element 3 engages on one molded part in the undercut groove 14 on the underside of the other molded part. Such molded parts can also have roughening on their underside, e.g. Corrugations, waffle patterns or the like, in order to increase the slip resistance of the mats and / or wipers 1 assembled therefrom when these are placed directly on a flat floor surface.

From Fig. 1 of the drawing it follows that mats and / or wipers 1 of the types explained above have a relatively low profile, for example an extra flat design, because they can be manufactured with a total height 10 of about 16 mm.

Often, and in particular inside buildings, it is customary in the art to use the running mats and / or wipers 1 in shallow floor depressions in such a way that their top side is essentially at the same level comes to rest with the floor surfaces adjacent to the depression. In such cases, the floor recess is delimited by frame frames, which consist of angle profiles and can have different profile heights of, for example, 22 mm, 25 mm and 27 mm. The frame frames of different heights delimiting the floor recesses must of course also be assigned running mats and / or wipers 1 corresponding to different heights, so that the highly undesirable formation of tripping edges is avoided.

2 to 12 of the drawing show possibilities with which the use of the type of running mats and / or wipers 1 explained above with reference to FIG. 1 can also be achieved if they are laid in flat floor depressions delimited by frame frames of different heights is desired or even required.

Already Fig. 1 of the drawing shows that all profile bars 2 of the running mat and / or the scraper 1 are provided on the underside on their longitudinal center with an open groove profile 16. In the exemplary embodiments, this groove profile 16 is located in the central foot part 15 of the profile bars 2 and is formed between the two undercut grooves 14 arranged on the edge. The groove profile 16 has an approximately T-shaped undercut cross-sectional shape, as can be seen in FIGS. 1 to 5 of the drawing. Different from the exemplary embodiments, the cross-sectional shape of the groove profile 16 can, if appropriate, also be provided with undercuts in the manner of a dovetail.

While the basic design of a running mat and / or a wiper 1 with its total height 10 of 16 mm, for example, shown in FIG. 1 of the drawing has an extra flat overall height for direct laying on flat floor surfaces, it is suitable for laying such running mats and / or doormat 1 in shallow floor depressions desired or even condition to use them with increased heights 17, 18, 19, as indicated in Fig. 2. Each of these increased heights 17, 18, 19 must be adapted as precisely as possible to the respective profile height of so-called frame frames, which limit the floor recess in question compared to the normal level of the adjacent floor surface. There are, for example, frame frames that have a clear profile height of 22 mm. The increased overall height 17 of a running mat and / or a wiper 1 is matched to this. There are also frame frames with a clear profile height of 25 mm, to which the increased overall height 18 of a running mat and / or a scraper 1 is adapted. Finally, frame frames with a clear profile height of 27 mm are also used, which corresponds to the increased overall height 19 of the running mat and / or the foot scraper 1.

For the purpose of creating running mats and / or wipers 1 with increased heights 17, 18, 19, running mats and / or wipers 1 according to FIG. 1 are retrofitted with the usual total height 10. In the underside open groove profile 16 of the individual profile bars 2 downward support feet 20 can be engaged at least with a snug fit, as can be seen from FIGS. 2 to 5.

Each support leg 20 can be manufactured as a one-piece molded part, for example made of plastic, which has a base plate 21, from the top of which a coupling projection 22 protrudes. On the one hand, this coupling projection 22 has a thickness 23 which is adapted to the opening width 24 of the open groove profile 16 in the profile bars 2 (cf. FIG. 5). On the other hand, the coupling projection 22 has, in the normal direction to its thickness 23, an undercut profile shape which is matched to the open groove profile 16 and which is limited, for example, in a T-shape or also in a dovetail shape (cf. FIG. 4). The coupling projection 22 has a shaft 25 projecting from the base plate 21 and two hook projections 26 projecting from it on opposite sides, which give the coupling projection 22 its approximately T-shaped undercut profile.

4 and 5, but in particular FIG. 6 of the drawing, it can be seen that the shaft or neck 25 of the coupling attachment 22 has a square cross section and that the distance between its parallel pairs of surfaces corresponds to the thickness 24 of the coupling attachment 22 or the profile bar 2 is adapted to the opening width 24 of the open groove profile 16. This inevitably means that the diagonal or corner dimension of the shaft 25 exceeds the opening width 24 of the open groove profile 16.

Fig. 6 can also be seen that the hook lugs 26 of the coupling lug 22 each have corner roundings 27 which are designed so that the distance between two diagonally opposite corner roundings 27 is at least slightly smaller than the inside width of the open groove profile 16 of the profile bars 2 in their undercut area. The hook lugs 26 of the coupling lug 22 of the support feet 20 can therefore not hinder or complicate rotation of the coupling lug 22 within the undercut region of the open groove profile 16.

For the purpose of connecting the support feet 20 to the profile bars 2, the support feet 20 in the position shown in FIG. 5 are simply inserted with their coupling attachment 22 into the open groove profile 16, and the shaft or neck 25 of the coupling attachment 22 comes in the region of the opening gap to lie of the open groove profile 16, while at the same time its hook projections 26 are in the undercut region of the open groove profile 16. If the support leg 21 is now displaced relative to the profile bar 2 by an angular rotation about its longitudinal axis, then it reaches the functional position according to FIG. 4 after a 90 ° rotation. To this end, however, it is a condition that the larger than the opening width 24 of the open groove profile 16 Corner dimension of the shaft or neck 25 with a square cross section on the coupling projection 22 is overcome by elastic deformation. Due to the reshaping of the corners of the shaft or neck 25 which takes place after rotation through 90 ° then obtain a rotational position lock of the support feet 20 in the position shown in FIG. 4. In this rotational position of the support feet 20, the hook attachments 26 of the coupling attachment 22 then engage positively in the undercut area of the open groove profile 16 and effect a positive engagement of the respective support foot 20 there.

A tool engagement 28 on the free end face of the base plate 21, which can be, for example, a diametrical slot, a cross slot or a polygonal recess, considerably facilitates the rotation of the support base 20 necessary for fixing to the profile bar 2.

Figure 6 of the drawing shows that the foot plate 21 of the support foot 20 can have a square plan, the side length of the foot plate 21 being dimensioned at least so large that each profile bar 2 of the running mat and / or the foot scraper 1 is supported thereby over that profile area , which lies between its two longitudinal undercut grooves 14.

9 and 12 can be seen, on the other hand, that it is also readily possible to give the base plate 21 of each support leg 20 a circularly limited base area and then to dimension it so large that two opposing, segment-shaped edge regions which enter into the Underneath undercut grooves 14 of the profile rail 2 with their head part 13 engaging edge webs 12 of the holding elements 3, which each produce the connection between two adjacent profile bars 2 of the running mat and / or the foot wiper 1.

In this case, it is particularly advantageous if the surface areas adjacent to the coupling attachment 22 of the support feet 20 each have roughenings 29, for example in the form of ribs, corrugations, cords or the like. In the installed position of the support feet 20 according to FIG. 4, these roughenings 29 lying on segment-shaped surface areas on the upper side of the foot plate 21 then lie below the edge webs 12 of the holding elements 3. When the running mat and / or the foot scraper 1 are loaded, the segment-shaped surface regions 29 of the foot plate provided with the roughenings 29 come into contact with the holding elements 3 below the edge webs 12 and additionally support them with simultaneous increase in friction in order to engage the head parts 13 in the optimally support undercut groove 14 of profile rail 2. In this case, the foot plate 21 of each support foot 20 not only engages under the foot part 15 of the profile rail 2, but also the edge webs 12 of both holding elements 3, which are inserted on both sides next to this in the undercut grooves 14.

Finally, it should be mentioned here that the embodiments of support feet 20 shown on the one hand in FIGS. 7 to 9 and on the other hand in FIGS. 10 to 12 differ practically only from one another in that their support feet 21 have different thicknesses. They are therefore used when a running mat and / or a wiper 1 of the basic design shown in FIG. 1 are to be prepared for laying in flat floor depressions with different frame heights.

While above, FIGS. 1 to 12 of the drawing have been explained as application examples of the invention, running mats and / or wipers 1 which, in practical use, require large-area and dimensionally stable support either directly on a flat floor surface or in a flat floor recess, are now to be described 13 to 15 embodiments of grids or mats 1 are explained, the training of which is mainly suitable for covering walkways, basins, pits or the like, but which can also be used as a wiper, which is usually large-scale on a flat floor or in supported by a shallow floor recess become. This grate or mat 1 in turn has a larger number of profile bars which are spaced apart from one another and in the longitudinal direction parallel to one another and are connected to one another by holding elements 32 directed transversely to them and at the same time are held at a distance from one another.

Hollow profiles serve as profile bars 31, which are provided on the top and bottom with undercut grooves 34 and 35 running in their longitudinal direction.

The holding elements 32 have molded-on head parts 36 which, transversely to their longitudinal direction, have a profile shape which is at least approximately matched to the cross section of the undercut groove 34. Therefore, the profile bars 31 can be connected to the holding elements 2 in a simple manner via the head parts 36 and the undercut groove 34.

From the undercut groove 35 of each profile bar 31, an insert strip 37 is received, which can be designed in different ways. E.g. can be designed as a brush strip. However, they can also be easily made from felt, textile material, rubber, etc. Each insert strip 37 has a cross-sectional part 37a penetrating into the undercut groove 35 of the profiled strip 31 and a cross-sectional part 37b projecting beyond the upper edges 38 thereof. The insert strip 37 is positively fixed in the undercut region 40 of the profile groove 35 via the cross-sectional part 37a, in a manner known (not described here). It is only important that the cross-sectional part 37a of the insert strip 37 has a height which corresponds to the clear height 41 of the undercut area 40 of the profile groove 35.

In Fig. 13 it can be seen that the holding elements 32 pass under the profile bars 31 of the grate or mat in the manner of a web or a strip and the protruding molded from their top undercut head parts 36 engage positively in the undercut groove 34 of each profile bar 31. The holding elements 32 expediently consist of a relatively rigid material, so that the fully assembled grate or mat is relatively dimensionally stable, even if there is a relatively large distance between two holding elements 32 running parallel to one another.

Usually, the web-like or strip-like holding elements 32 are used with a cross-sectional height that is sufficient to give the completely assembled grate or mat the desired stiffness for the respective application. For different purposes, however, this cross-sectional height of the holding elements 32 is not sufficient to bring the top of the grate or the mat to a prescribed height level. In this case, it is then possible to provide the grate or the mat on the underside in addition to the holding elements 32 with support feet 42, which can have the design already explained above with reference to FIGS. 6 to 12, that is to say with a support from the top of their footplate 43 towering coupling approach 44 are provided. Each support foot 43 can then be inserted into the groove profile 34 from below with the thickness of the coupling projection 44 adapted to the opening width of the undercut groove profile 34. Since the coupling projection 44 has an undercut profile shape which is matched to the groove profile 34 in the normal direction to the thickness, each support leg 42 can be locked and / or anchored in the groove profile 34 simply by rotating the coupling projection 44 to produce a positive clamping fit, as in FIG. 14 you can see.

If the base plate 43 has a height that corresponds to the profile height of the holding element 32, then it is possible to additionally support the profile bars 31 with the aid of the support feet 42 at any desired location. If the height of the foot plates 43 on the support feet 42 is chosen to be greater than the profile height of the holding elements 32, then the top of the grate or mat can be aligned to a different height level regardless of the effective profile height of the holding elements 32. This height level can be varied as required, simply by holding support feet 42 with base plates 43 of different heights ready for use.

From Fig. 15 of the drawing it can be seen that there is also the possibility of building grates or mats on which training features of the running mat and / or the scraper according to FIGS. 1 to 3 and the grate or mat according to the 13 and 14 are realized.

It can be seen there that adjacent profile bars 2 can be coupled directly to one another by holding elements 3 in the same way as is the case with the running mat and / or the foot scraper 1 according to FIGS. 1 to 3. For this purpose, the undercut profiled head parts 13 of the edge webs 12 protruding from the bottom 5 of the holding elements 3 interact with the grooves 14 formed in the underside of the profile bars 2 along their longitudinal edges. Between the two grooves 14 located on the longitudinal edges of the profile bars 2, however, the undercut groove profile 16 is still lying on the longitudinal center thereof, which in this case is comparable to the groove profile 34 of the profile bars 31 according to FIGS. 13 and 14. With this groove profile 16 of all profile bars 2, on the one hand the undercut profiled head parts 36 of the web or strip-like holding elements 32 of the type shown in FIGS. 13 and 14 can be brought into holding connection. At points distant from the holding elements 32, however, the undercut groove profile 16 - in the same way as in the undercut groove profile 34 of the profile bars 31 according to FIGS. 13 and 14 - can also lock and anchor the additional support feet 42, as in the right half 15 is shown hinted at.

15 is particularly suitable for those applications where not only a high level of structural strength is required in practical use, but also the provision of a landfill for dirt and moisture between adjacent profile bars 2 is desired. In this case, too, the retrofittable support feet 42 can then also be used in order to be able to vary the height level of the top of the grate or the mat according to the different needs.

List of reference numbers

1

Running mat and / or doormat

2nd

Profile bar

3rd

Holding element

4th

Gutter

5

ground

6

Gutter height 4

7

Width of the gutter 4

8th

Width of the profile rail 2

9

Insert strips

10th

Overall height

11

free height of the insert strips 9

12th

Edge webs of the holding elements 3

13

Head part of the edge webs 12

14

undercut groove in the profile rail 2

15

Foot section of the profile rail 2

16

open groove profile of the profile rail 2

17th

increased overall height

18th

increased overall height

19th

increased overall height

20th

Support leg

21

Base plate of the support foot 20

22

Coupling shoulder of the support leg 20

23

Coupling lug thickness 22

24th

Opening width of the open groove profile 16

25th

Shaft / neck of the coupling attachment 22

26

Hook attachments of the coupling attachment 22

27

Rounding of the corners of the hooks 26

28

Tool engagement in the footplate 21

29

Roughening of the base plate 21

31

Profile bar

32

Holding element

33

34

undercut groove in the profile rail 31

35

undercut groove in the profile rail 31

36

Head part of the holding element 32

37

Insert strips

37a

Cross-sectional part of the insert strip 37

37b

Cross-sectional part of the insert strip 37

38

Top edge of the profile strip 31

39

Opening gap of the profile groove 35

40

undercut area of the profile groove 35

41

clear height of the undercut area 40

42

Support leg

43

Footplate

44

Head part of the support foot 42

Claims (11)

Grate or mat, especially a running mat and / or doormat (1) with a plurality of profile bars (2 or 31) arranged parallel to one another with their longitudinal axes, but essentially transversely to the main running direction, which are connected to one another at a distance by holding elements (3 or 32 or 3/32), the holding elements (3 or 32 or 3/32) have a position which is offset downwards relative to the upper edges of the profiled bars (2 or 31), - and can be inserted with form-fitting coupling members in adapted undercut longitudinal grooves (14 or 16 or 34) on the underside of the profiled bars (2 or 31) with head parts (13 or 36) which are formed so as to protrude from the top and are undercut, characterized, - That independently of and / or in addition to the holding elements (3 or 32 or 3/32) usable, downward-facing support feet (20 or 42) with a fixed from the top of their base plate (21 or 43) projecting coupling approach (22 or 44) and with this from below on the head parts (13 or 36) of the holding elements (3 or 32) different or unoccupied positions in the profile of the longitudinal grooves (14 or 16 or 34) the profile bars (2 or 31) can be engaged, - That the thickness (23) of the coupling lugs (22 or 44) of the support feet (20 or 42) is adapted to the opening width (24) of the profile of the longitudinal groove (16 or 34), - That this coupling approach (22 or 44) in the normal direction to the thickness (23) has an undercut profile shape (25, 26) which is matched to the groove profile, - And that each support leg (20 or 42) can be locked and / or anchored by means of an angular rotation with its coupling projection (22 or 44) in the groove profile (16 or 34) with a form-fitting clamp fit. Grate or mat according to claim 1,
characterized,
that each profile bar (31) contains only a longitudinally arranged, undercut longitudinal groove (34), and that the support feet (42) at points offset to the coupling areas of the holding elements (32) with their coupling shoulder (44) in this undercut longitudinal groove (34) Profile bars (31) can be engaged and locked and / or anchored therein by angular rotation. Grate or mat according to claim 1,
characterized,
that each profile bar (2) contains a plurality of mutually parallel, undercut longitudinal grooves (14 and 16), one (16) of which is provided as a locking and / or anchoring engagement for the coupling approaches (22 and 44) of support feet (20 and 42) . Grate or mat according to claim 3,
characterized,
that the profile bars (2) on the underside each contain three parallel longitudinal grooves (14 and 16), one of which (16) runs longitudinally and at least as a locking and / or Anchoring engagement for the coupling lugs (22 and 44) of support feet (20 and 42) is provided. Running mat and / or foot scraper (1) with a plurality of with their longitudinal axes parallel to each other, but essentially transversely to the main running direction arranged profile bars (2), which are connected to each other by holding elements (3) at a distance, one opposite the upper edges of the Profile bars (2) have a downward position in order to form two adjacent profile bars (2) a channel (4) delimited on three sides, with insert strips (9), in particular made of flexible material such as felt, in the profile bars (2). Brush body, rubber or textile covering - preferably replaceable - are fixed,
characterized,
that the profile bars (2) have an open groove profile (16) with an undercut cross-sectional shape on the underside at least on their longitudinal center,
that downward-facing support feet (20) are provided with a coupling projection (22) which projects firmly from the top of their footplate (21) and can be inserted from below into the groove profile (16), which with its thickness (23) adjusts to the opening width (24 ) of the groove profile (16) is adapted,
that this coupling projection (22) has an undercut profile shape (25, 26) that is matched to the groove profile in the normal direction to the thickness (23),
and that each support leg (20) can be locked and / or anchored by means of an angular rotation with its coupling projection (22) in the groove profile (16) with a positive clamping fit. Running mat and / or doormat (1)
according to one of claims 1 to 5,
characterized,
that the groove profile (16 or 34) of the profile bars (2 or 31) and the coupling projection (22) of the support feet (20) has an approximately T-shaped or dovetail-shaped undercut cross-sectional shape. Running mat and / or doormat (1)
according to one of claims 1 to 6,
characterized,
that the shaft or neck (25) of the coupling projection (22) on the support feet (20) has a square cross section and the distance between its mutually parallel surface pairs is adapted to the opening width (24) of the open groove profile (16) of the profile rails (2). Running mat and / or doormat (1)
according to one of claims 1 to 7,
characterized,
that each support foot (20) has a polygonal, for example square or hexagonal, or also circularly limited base area. Running mat and / or doormat (1)
according to one of claims 1 to 8,
characterized,
that support feet (20) with different support heights (17, 18, 19) can be coupled to the profile bars (2). Running mat and / or doormat (1)
according to one of claims 1 to 9,
characterized,
that the support feet (20) on the underside contain a tool engagement (28), for example a diametrical slot, a cross slot, a polygonal recess or the like. Running mat and / or doormat (1)
according to one of claims 1 to 10,
characterized,
that the dm coupling approach (22) adjacent surface areas on the base plate (21) of the support feet (20) with the profile bars (2) facing roughening (29), such as ribs, corrugations, cords or the like are provided.

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