DE2256583A1 - FOOT WIPER - Google Patents

Description

The invention relates to doormats, in training for example as a grid, grate, mat or the like. How they for example at building entrances so that People who want to enter the building can clean their shoes. .

It is in both residential and commercial buildings It is common practice to lay out grilles, gratings or mats in front of or behind the building entrances so that people can visit the building enter, clean your shoes. Will be in the market A variety of entrance grilles and mats are available for this purpose.

Entrance doormat grids or mats should have several have important properties. It should have a surface be present, with which dirt can be effectively removed from the shoes of the people entering it. The from Dirt removed from the shoes should be retained / until it can be removed at a later point in time.

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They ropes to be relatively easy to clean, preferably through self-cleaning at least on the tread. The materials used to make the mats or grids should As far as possible, be resistant to the environmental conditions at the place of use, such as tread wear by abrasion, against water and against the substances that are usually contained in water and in dirt that is removed from the Shoes of the people stepping on the grille or the mat! dissolves, against sunlight and against temperature influences.

The butt wiper grids and mats of various types in common use like some of the ones provided Requirements quite well, but often others fail to meet them. For example, rigid metal grids are usually durable and resistant to environmental conditions and self-cleaning insofar as being detached from shoes Dirt falls between the bars into empty spaces. However, the metal mesh bars have due to their hard surface usually only a limited cleaning effect. On the other hand, shoes with pile fabric, such as. Carpets or fiber mats usually clean very well, but these materials are less durable and tend to rapid wear.

The subject of US Pat. No. 3,385,822 is a sturdy butt scraper grille made of metal, which is made from in a small amount

Spaced apart and interconnected Metal rods is formed. To have a better cleaning effect, a longer shelf life or a more pleasing appearance achieve, are on the upper sides of the bars surfaces made of different materials and with different Design provided, such as wear or friction surfaces made of plastic or using a friction agent, Corrugations or serrations on the bars and the like

Grids have found a large market and have become proven.

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In one embodiment of the doormat grille of the in of the aforesaid patent are the Areas on the tops of the bars of strips of carpet formed, which are permanently glued into shallow grooves. That The pile or pile material of the carpet is very suitable for cleaning shoes, and can with regard to color and material be adapted to carpets laid out in the building for which the doormat is intended, and has various additional benefits. However, carpet material wears out relatively quickly and insofar as carpet material is permanently glued to the bars, the service life of the doormat grid can be increased to a certain extent. be limited, especially if the doormat grille, for example, at the entrance to a department store or to an office building is heavily committed.

The invention is based on the object of using simple means to create an economically producible foot scraper, to which the aforementioned and other disadvantages do not adhere and which is particularly characterized by durability, high cleaning effect and easy cleaning.

The foot scraper designed according to the invention advantageously has replaceable pile fabric pieces as surface elements,> so that the foot scraper has an almost unlimited service life awarded. is. If a piece of pile fabric is too large Wear, discoloration or for any other reason unusable for the user, the pile fabric pieces can be exchanged for new ones quickly and easily.

The object of the invention is achieved according to the invention with a doormat, in training, for example, as a grid,

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lioat, katto, ο.del., loosened, with thorn a multitude of strips of predominantly longitudinal extent and cross-section borrowed over the entire length of the lance are arranged in abctand from one another. Each ocr ledge has a substantially flat shape in cross-sectional view. A flange protrudes from the Uar.ia along each base side and forms a flat groove. From the upper edge, iod or: flansche ε protrudes over the length of the flange ·. '· A lip inwards. The ones on each side of the flat base. The flanges and lips present on each bar delimit the seiton slits, which extend right along each side of the bar and receive and hold in place a strip of pile fabric of predominantly longitudinal extent. Each pile fabric strip has one: an essentially flat back strip made of a semi-rigid material, which gives the pile fabric strip sufficient rigidity to ensure that the pile fabric strip is jagged and porous so that it is securely held and clamped in the strip groove. The pile fabric strip is securely received on both sides with my side edges in the slots extending along each side of the bar and held firmly on. The semi-rigid back strip therefore prevents the pole tape from pulling out along the flat edge. and therefore also enables the pile fabric strip to be inserted and held in position without the use of any adhesive, fastening means, or other devices . Le j st en ^ g hp.lten απ the ends of the Polgewebestreifen can however bofostigungsraittol or the following I Unfangsverlauf ah ::.: · η um or at the end faces mounted Ii cn used werci-j: i. _f uir a To prevent noise from shifting the pile fabric strips.

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BADORKI (NM.

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Although the strips and the pile fabric strips are one according to the invention trained doormat made of different materials can be produced, the strips are in a preferred embodiment, for example, by extrusion or extrusion of aluminum or a stiff high-performance plastic and obtained with the desired cross-section, and the pile fabrics have a pile cover made of synthetic Material, for example made of acrylic resin, nylon, polypropylene or other for the production of pile fabrics polymers known to be suitable. The pile fabric strips advantageously consist of a conventional commercially available one Carpet material. In fact, the same carpet material can be used for the pile fabric strips of the foot scraper, which is intended for the building in which the doormat is to be placed. Used for the pile fabric strips Scraper carpet material used can be of semi-rigid Backing strip of each strip of pile fabric as a preformed strip of semi-rigid material with a suitable one Adhesive can be attached to the back of the preformed piece of carpet. It can also have a backing made of one semi-rigid material, for example made of a polymer, by spraying, extrusion or another suitable coating process on the back of the preformed Carpet piece are applied. The underside of the back strip can be with a pattern or a structure of indentations or waffles, which create a suction effect, so that the carpet strip against pulling out is better protected from the last groove.

Many commercial carpets are limited in size against loosening the pile or pile threads from the back or ' Protected lower fabric. This particularly applies to many Needle carpet qualities too. The manufacturer Deering Milliken recently launched a · Type of carpet brought onto the market in which the pile threads ■ ur / i the sub-tissues are particularly tightly connected to one another

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and the pile threads have virtually no tendency to fray or loosen along a cut edge. In the "Milstar" carpet quality is the link between the Pile cover and a suitable base fabric, which is conventionally made of jute, through a layer a polymeric material achieved. The pile cover consists of essentially U-shaped pieces of thread, which, however, in contrast to needle-punched carpet qualities, are not passed through the back of the fabric, but in the layer of polymer Material embedded and held by this in position. Due to its structure, this type of pile fabric or Carpet has particularly good performance properties as pile fabric strips in doormats according to the invention. the Strips can easily be cut to exact size from a web of carpet material, including along the length of the carpet Outside edges of the cut material there is almost no risk that the pile cover or the pile thread will separate from the base fabric to solve. It is also possible to cut an edge into the fabric side of the carpet, almost in its area the entire pile cover is removed and a thin layer of the polymeric material and the backing of the carpet remains that is under or in which is on both sides of the foot scraper extending side slot are included. Because of the structure of this type of pile fabric, a carpet material can be produced in which the connection of the pile cover with a Base fabric serving layer of polymeric material is relatively stiff and than the semi-rigid backing strip can be considered to play an important role in achieving sufficient rigidity of the pile fabric strip plays to prevent the strip of pile fabric from being pulled out of the last groove. Very good results are also achievable by placing a separate, preformed back strip made of semi-rigid material on the base fabric a preformed conventional carpet material such as "Milstar" or any other grade of carpet similar structure, stuck on.

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A relatively thin doormat is according to the invention achievable in such a way that the strips on which interchangeable Pile fabric strips are added, connected with connecting elements in the form of relatively thin strips, which extend substantially transversely to the strips and are attached to their undersides. The Connection strips made of a flexible material, for example an elastomeric polymer such as synthetic Rubber or flexible plastic, or made from a fabric. The use of flexible fasteners in a thin doormat makes it possible to use it for storage purposes or to roll up when cleaning the floor surface underneath it. A thin doormat can fit into a Shallow depression or depression in the floor or .immediately can be placed on any desired surface. Depending on the ones used for the strips and the fasteners Materials, various methods can be used to connect the strips to the connecting elements. For example, most of the-for the fasteners suitable materials on metal or plastic strips an epoxy resin or another highly peel and peel-off adhesive. Ultrasonic welding is suitable for connecting strips and connecting elements made of thermoplastic material.

Those with a foot scraper designed according to the invention achievable benefits are numerous. As already mentioned, the most important advantage is that the pile fabric strips, Can be easily replaced when worn or unsightly for one reason or another became. Pile fabrics are very suitable for cleaning the shoes of people who enter the building. The doormat clean themselves, as the dirt loosened from the shoes passes between the strips on the floor or fall into the floor recess in which the doormat is received. The surface of the pile fabric

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has a very pleasing appearance and the color scheme can be adapted to the surroundings. The structure makes it possible to combine strips with different colors or different designs to form a doormat, so that an appropriately chosen pattern, characters, a grouping of numbers or letters results. In this regard it is very easy to meet special customer requirements by changing the intended material accordingly.

The invention is explained in the following with the aid of schematic drawings of several exemplary embodiments with further details. In the drawing shows:

1 shows a section, essentially transversely to the doormat strips, by part of a form of the foot scraper,

FIG. 2 shows a section, enlarged compared to FIG. 1, through part of a strip of the one shown in FIG. 1 Doormat,

FIG. 3 shows an enlarged section through FIG. 1, a bar with a strip of pile fabric in a different form,

4 shows a section, essentially transversely to the foot scraper strips, by part of one embodiment of a thin doormat, and

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Fig. 5 is a side view, partially in section, taken substantially along line 5-5 in Fig. 1 and with Direction of view according to the arrows drawn in, through part of that shown in FIG. 4 Doormat.

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The basic structure of the one shown in the drawing The foot scraper is essentially the same as with the in the aforementioned US Pat. No. 3,383,822 and illustrated doormats. For a complete description of the basic structure of the foot ■ stripper and the method for assembling such Foot scraper is referred to the patent mentioned. The doormat "has a large number of closely spaced mutually arranged and mutually parallel doormat strips 10 supported by connecting rods 12 connected to each other form a 'rigid doormat. The strips 10 are cut to the appropriately chosen dimension Components, which are preferably made of extruded starting material of uniform cross-section made of aluminum, brass, Plastic or other suitable metal. Each of the doormat strips has, in a cross-sectional view, a web H, the middle part of which is relative to the upper and lower parts are made with a smaller "thickness, to get a recess 15 on each side. in the The web of each bar is a series of spaced apart, keyhole-like recesses forms which correspond to the cross-sectional shape of the connecting rods 12 substantially. To the strips to a doormat to connect are several connecting rods needed. Each of them has one in cross-sectional view circular central part 17, which is drawn in Fig. 1 in side view, and two flanges 48 and 20, which of go out diametrically opposite points on the circular central part 17 and lie in a plane which is the axis of the Middle part 17 includes.

The two flanges 18 and 20 of the connecting rod 12 point Slots 22, which are arranged so that their center distance is the same as the desired center-to-center spacing of the foot scraper strips 10. To assemble the foot scraper, the connecting rods 12 are through the matching Keyhole-like recesses 16 in the strips

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put through. These recesses 16 in the strips are aligned 30 that the connecting rods with horizontal ht lying splash must be introduced. As soon as all doormat strips 10 are attached to the connecting rods are, the connecting rods are individually around their Longitudinal axis rotated around the two paddles 18 and 20 each Connecting rod 12 in a substantially vertical plane to pan (Pig. 1). The dimensions of the slots 22 are somewhat smaller than 12 in the longitudinal direction of the connecting rod η the dimensions of the corresponding areas of the webs 14 of the strips selected. The web sections are accordingly of the various doormat strips between them. opposite edges of each slot 22 pinched. Due to the dimensional relationship between the width of the ground and the thickness of the web section, in the area of which the slotted walls are located rest on the web of each doormat bar, there is a strong frictional engagement between them, through which the bars are connected to a robust and rigid doormat.

Each scraper bar 10 has in Querschnittsanoieht at the lower end of the web 14 a Plansch 24 and at the upper end of the web a top part which is composed of a substantially flat base 26 (Fig. 2) 28 _t a Plansch on each side of the base 26 which rises from this and forms a shallow groove in the upper part of the bar, and a lip 30 at the upper end of each flange, which extends inward towards the center line of the bar and a lip 30 on either side of the flat ridge formed on the upper part of the ridge form a longitudinal slot 32 therethrough.

In the formed in the upper part of each doormat strip 10

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flat hat is a pile tape 34 added, which the Forms the tread of the doormat. Yfie above already mentioned, the pile fabric strip can be made of different materials. However, it is preferably a Carpet made of synthetic material and has a back 36 made of semi-rigid material, which gives the carpet rigidity. In the embodiment shown in the drawing, the pile fabric strip 34 is a carpet strip 38 of the Type in which a pile cover 40 made of essentially U-shaped thread loops on a lower or base fabric 42 with a Layer 44 of polymeric material is attached, -which obtained by application made in place on the fabric and into which the thread loops are pressed during the manufacturing process. Because of the The construction of this special type of carpet is an important advantage shows that the pole cover is essentially free of any tendency to detach, in other words that between The pile cover and the base fabric create a secure connection throughout it seems appropriate to explain the structure of the carpet in a few details.

To produce a carpet of this type, reference is made to the Base fabric 42 is a layer of a plastisol of a polymeric material, such as polyvinyl chloride, in semi-liquid or pasty state and applied accordingly Shaping the thread loops into the plastisol coating depressed. The plastisol coating is then brought to> melt and cooled to solidify. It results a plastic layer that adheres firmly to the base fabric and in which the thread loops are embedded so that their Lower parts are encapsulated in the plastic layer. As already mentioned above, carpet qualities are this Type has recently been available on the market.

By joining a layered backing strip 36 to the carpet strip 38 with a suitable adhesive

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the pile fabric strips 34 of the foot scraper shown in the drawing are made sufficiently stiff to hold them in the grooves of the strips. The back strip 36 is made from a suitable semi-rigid material, advantageously from a plastic, such as, for example, from a medium-density polyvinyl chloride. In the embodiment shown in Figure 2, the back strip 36 has a uniform thickness over its entire width. A pile fabric strip 34a shown in FIG. 3 is similar to that used in the embodiment shown in FIG. 2, with the exception that a backing strip $ 6a. Has flanges 41 formed along its side edges and

Form a shallow recess in which a carpet strip or a carpet material 38a is added. Fig; Figure 2 shows that the strips are made by layering a web Carpet material and a web of backing strip material are producible, the composite web subsequently sawn or otherwise suitably cut into strips of appropriately chosen width dimensions. In the In the embodiment shown in Fig. 3, the carpet strips are cut out individually and the preformed back strips 36a attached in layers to the individual carpet strips.

In the embodiment shown in Fig. 2 are on the The top of the side edges of the carpet strips, the pile cover and part of the plastic layer by milling or Trimmed and left along each edge of the carpet strip 38 a small projecting side edge 46, which is of part of the plastic or polymer anchoring layer 44 of the carpet, the base fabric 42 and the side edges of the backing strip 36 is formed. The thickness of each of the projecting side edges 46 is substantially equal to the perpendicular extent of the slot 32 at the edges or edges of the upper part of each strip 10, while the dimension in the transverse direction between the extreme ends of the projecting side edges 46 substantially equal to or (i> en is slightly smaller than that in the horizontal direction

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measured distance between the inner surfaces of the puddles 28, i.e. between the bases of the slots 32. Hence the protruding Side edges 46 of the pile fabric strips 34 in the formed on the upper part of each Pussabstreifer bar 10 , Groove recorded and held.

In the case of the in I ¹ Xg. In the embodiment shown in FIG. 3, the pile fabric strip 34a is received and held in the groove of the strip 10 in a similar manner. In this embodiment, however, the carpet strip 38a has a width that is essentially the same as the opening width upward between the most inner ends of the lips 30 of the strips TO. The semi-rigid spine strip 36a is sized to fit snugly into the groove with the side edges being received and held in slots 32 on each side of the bar. It follows that both forms of training allow the same result * but in slightly different ways.

In Pig. 4 and 5, there is shown a relatively thin doormat having strips 50 which are substantially of the same cross-section as the tops of the strip 10 of the in Pig. 1, with the exception that an underside 52 of a base 54 äejr'Leiste 50, is formed substantially flat. Each of the strips 50 receives a replaceable Polgewebestreifen 56 _f as a preformed carpet S * and dar'gestellten 3 in Pig and aüsgebilde type described above further ^1: fc * Instead of a separate, preformed Eückenstreifens .from semi-rigid material, the Pölgewebestreifen 56 however, a coating 60 made of a polymeric material, which is applied to the underside of a carpet strip 58. An epoxy resin compound is sprayed onto the base fabric of the T-eppichestrip. After curing, the epoxy resin gives the pile fabric strip 56 a considerable degree of rigidity, that is to say dimensional and dimensional stability, which prevents the pile fabric strip from becoming

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pulls out of the shallow groove of the bar 50. Of the Apart from the aforementioned differences, the strips 50 and the pile fabric strip 56 are corresponding in the forms of construction Fig. 4 and 5 are the same as the corresponding components of the embodiment shown in Fig. 1 and therefore need not to be described with details at this point.

The strips 50 are combined to form a foot scraper by relatively thin strips 62 of a flexible material arranged at a distance from one another. The strips 62 extend transversely to the strips 50, of which a suitable number is provided in order to be able to form a doormat of the appropriately chosen width. In this form of clothing, strips with a thickness between approximately 1.2 hm and approximately 19 μm and with a width between approximately 1 * 9 mm and approximately 38 mm are used. They are made of synthetic heöpren oil, which is stiffened with longitudinally extending cords 64, which give the strips elongation stability. By changing the thickness of the strips, it is possible to produce doormats of appropriately chosen thicknesses 62 on the underside of the lines is done with ¹ ,. An epoxy or other suitable Kieböätiti ^ l, whereby very good adhesion between the strips and <Un IeIfiten can be achieved if the strips have been subjected to a careful cleaning * The undersides of the strips can be roughened or provided with grooves to help create a durable connection The strips can be cut across the in place Undersides of the strips are potted so that they can with

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these, are immediately united and connected. The width the strips and their spacing from one another in the longitudinal direction of the strips can be changed depending on the requirements of pestibility. If the strip is made with a larger width, a stronger bond can be achieved between the strip and the strips achieve. A greater overall strength of the doormat can be achieved if you fit the strips with a relatively small spacing of about 10Ovmm, for example arranges. The color of the stripes can match the pile fabric be adjusted. With rubber or plastic connecting strips 62, a desirable medium elasticity of the foot scraper can be achieved with good slip resistance.

The invention is not restricted to the above exemplary embodiments, but rather within the scope of this basic concept can be modified in many ways.

Claims (10)

S P R. ίί C H E: 1. 'doormat, in training, for example, as a grid, food, mat, or the like », in which a plurality of strips of predominantly longitudinal and uniform cross-section over the entire length are arranged parallel to one another and at a distance from one another, characterized in UsB - each Bar (10) in the transverse bulkhead view has a base (16) with an essentially flat and shallow groove, which is formed by flanges (28) and protruding from the base (26) on each side thereof. is bounded by the upper edges of the flanges (28) inwardly projecting lips (30) which together with the flange (28) and an adjacent side edge of the base (26) form a slot (32) with the open side facing inwards extending along ^ Eder side of the bar (10), and wherein the inner ends of the lips (30) are spaced from each other and defining a lying between them opening further that $ EAev strip (10) a pile fabric strip (34) is absorbed by predominantly longitudinal expansion, the one essentially *! flat rear tire (36) made of a semi-rigid en-material which gives the pile fabric strip (34) sufficient rigidity to prevent it from being pulled out of the rail groove (32), as well as a pile cover (40), and that each Pile fabric strip (34) is received on a bar (10) in such a way that the side edges (46) of the kicker strip (36) are firmly received in the slots (32) running along each side of the bar, the kicker strip (36) 309821 / 0.33 » 42 276 / ff rests on the base of the groin (26) and through the bolster (40) the opening between the inner edges of the lips (30) protrudes through and beyond it. 2. doormat according to claim 1, characterized in that the semi-rigid.Eückenstreifen (36)
each pile fabric strip (34) is preformed as a strip made of a »semi-rigid material that is old flat (42) of a preformed separate Polgewetoee (38) connected is. 3. doormat according to claim 1, characterized in that gel e m η ~ ζ e i c h η e t that the semi-rigid bridging strip of each pile fabric (56) has a coating made of semi-rigid material which is applied to a polar wind. 4. doormat according to claim 2, characterized in that the pile fabric is a carpet " 5. doormat according to claim 1, characterized in that the pile cover (40) of the pile fabric strip (34) is formed from U-shaped pieces of thread, which with
Sections of their U-shaped lower part are adhesively connected to the lower fabric (42) and held in place by a layer (44) of a polymeric anchoring material applied to the fabric side of an underwoven fabric (42). 6. ^! Doormat according to claim 5 _t characterized in that along the side edges of each Polgewebestreifens (34) the Poldecke (40) is removed, and in that along each side of Polgewebestreifens (34) a portion of the anchoring material (44) and the lower fabric (42) in the Slots (32) of the bar (10) is added. 309821/0338 / 3 42 276 ^ 7th, doormat after. Claim 1, characterized in that g e k-e η η - ζ e i c h η e t that with the strips (50) of predominant Longitudinal extension a plurality of connecting elements (62) are connected to the strips (50) substantially parallel to each other and at a small distance from each other. 8. foot scraper according to claim 7 »characterized ge k.e η η draws, that the connecting elements (62) are one-piece components of predominant longitudinal extent, which extend across a series of ledges (50) and are substantially parallel to and spaced from one another are arranged. · ·. 9. doormat according to claim 8, characterized in that the base (54) of each bar (50) has a ψ has a substantially flat underside (52), and that the connecting elements (.62) are thin strips of a flexible material which are connected to the undersides (52) of the strips (50). . 10. doormat according to claim 9 »characterized by g e k e η η-draws, that the connecting elements (62) made of an elastomer and attached to the strips (50) are attached with an adhesive. - ". · .. 309821/0338 Blank page