EP2987913B1 - View protection walls or fences with interlaced strip - Google Patents

Description

The present invention relates to a screen or privacy screen with a lattice-like base element, in which a braid or more braids is braided / are. In particular, the privacy fence can be designed as a double-rod matting fence.

With braided straps can be produced in a cost effective and simple way screens or privacy screens of the type mentioned in almost any height and width. In this case, in a grid-like basic element comprising a plurality of intersecting, usually vertically and horizontally arranged rods, usually a plurality of such braided tapes are braided parallel to each other so that a substantially closed surface is generated. While the braids are usually woven horizontally into the lattice-like base element, it is also possible in principle for the braids to be arranged vertically or, if the lattice-like base element has a corresponding design, also to run obliquely.

A privacy fence with braided braided bands is for example from the US 3,045,976 A known.

While the privacy achieved by the braided tapes is very good with correspondingly opaque trained braiding, the sound protection achieved by the corresponding screening walls or fences is often in need of improvement.

From the US Pat. No. 6,598,701 B1 there is described a sound absorber made by transforming a microperforated polymer film into a non-planar three-dimensional space form.

It is an object of the present invention to provide a screen or privacy screen of the type mentioned, with which an improved sound insulation is achieved.

Based on a screen or a privacy screen of the type mentioned, this object is achieved in that in the braid or in the Flechtbändern a plurality of formed as a sound-absorbing micro-perforations openings is formed.

The microperforation according to the invention achieves a sound-absorbing effect, so that a view protection with braided strip formed according to the invention has a significantly improved degree of sound absorption than a privacy screen provided with an imperforate braided strip or with a braided strip with larger holes.

According to a preferred embodiment of the invention, at least a part of the openings has a maximum width of less than 1 mm, in particular less than 0.5 mm, preferably less than 0.3 mm. Advantageously, substantially all openings have such a width, and it is fundamentally harmless if in addition some openings are present, which also have a greater width and are provided, for example, for attaching the braiding or optical reasons. To achieve optimum sound absorption, it is advantageous if the number of openings formed as sound-absorbing microperforation is significantly greater than the number of other possibly provided openings or if exclusively or as good as are provided exclusively as a sound absorbing micro perforation openings formed.

Preferably, at least a part of the openings has a circular, oval, polygonal, rectangular, square and / or triangular cross-section. While for the purpose of ease of manufacture, usually all sound-absorbing apertures have the same cross-sectional shape, it is quite possible that several different cross-sectional shapes are mixed together.

More preferably, at least a part of the openings is formed as passage openings. That is, the openings extend from one side of the braid tape to the other, opposite side. In principle, it is also possible, as an alternative, that at least some of the openings are formed as recesses closed on one side and therefore form so-called blind holes. Also, a mixed configuration of the openings as through holes and closed recesses is possible.

According to a further advantageous embodiment of the invention, the openings are arranged distributed substantially uniformly over the surface of the braiding. This achieves a very even soundproofing.

Preferably, the braiding is substantially or completely made of plastic, in particular of PVC and preferably of rigid PVC. In principle, it is also possible to use another suitable material and in particular another suitable plastic material.

More preferably, the braided tape is made of UV-resistant material to counteract material aging when used outdoors.

According to a further preferred embodiment of the invention, the braided tape consists of an elastic material. This simplifies braiding of the braiding strip into the grid-like basic element.

The braiding tape preferably has a length of approximately between 1.5 m and 3.5 m, in particular of approximately between 2 m and 3 m, preferably of approximately 2.5 m. More preferably, the braiding has a width of about 15 cm and 25 cm, in particular of about 18 cm and 21 cm, preferably of about 19 cm. Advantageously, the braided tape has a thickness of approximately between 1 mm and 3 mm, in particular of approximately between 1.5 mm and 2 mm.

The braided tape may for example be plate-shaped, that is in the form of plates with a predetermined length and width, or as a roll product.

Preferably, the braided band is designed as a hollow chamber element, that is, one or more cavities are provided in the interior of the braided band, by means of which the sound-absorbing property of the braided band can be further improved. For example, the braid strip may comprise two surface elements arranged parallel to one another, which are spaced apart from one another by strip-like elements, so that one or more cavities are formed between the surface elements and the strip-like elements. The strip-like elements can serve at the same time to connect the surface elements and be glued or welded with these example. The strip-like elements may preferably be arranged to extend parallel to each other. However, there are also intersecting strip-like elements possible, so they form a lattice structure within the braid. Preferably, at least a part of the strip-like elements runs along the longitudinal edges of the surface elements so as to form one or more end edges of the braiding strip.

Advantageously, only in each one of two parallel arranged, the hollow chamber element surface forming elements formed as sound-absorbing micro-perforations openings may be present. However, it is also possible that the openings are formed in both surface elements. The openings can be configured as described above.

A screen according to the invention or a screen according to the invention comprises a lattice-like base element in which a braided tape or a plurality of such braided tapes is braided with a multiplicity of openings designed as sound-absorbing microperforations. In particular, several braids may be interlaced running parallel to one another in the grid-like basic element. The braids can be arranged both horizontally, vertically extending or sloping.

Advantageously, the lattice-like base element comprises intersecting vertical and horizontal bars, in particular metal bars, which are interconnected at their points of intersection, the braided strip being interlaced between spaced horizontal or between spaced vertical bars.

Advantageously, the braided tape can comprise or consist of a translucent, a transparent, an opaque or an opaque material. In the case of a transparent material can be achieved for example by additional means such as in particular a suitable planting or a covering or covering that in addition to the sound insulation achieved by the invention, a screen is also present.

In a further advantageous embodiment, the braiding can be provided on a side surface or on both side surfaces with longitudinally, transversely or obliquely to the longitudinal extension of the braided band extending ribs and / or grooves. The ribs and / or grooves on a side surface can in particular parallel to each other. In principle, both side surfaces or one side surface of the braiding strip can also be executed without ribs and / or grooves, ie provided with a (to the microperforation) smooth surface.

Further advantageous embodiments of the invention are specified in the subclaims.

Fig. 1

eine schematische Draufsicht auf ein erstes plattenförmiges Flechtband eines erfindungsgemäß ausgebildete Sichtschutzes,

Fig. 2

eine perspektivische Darstellung einer zweiten Ausführungsform eines Flechtbandes eines erfindungsgemäß ausgebildeten Sichtschutzes, welches als Rollenware ausgebildet ist,

Fig. 3

einen schematischen Längsschnitt durch einen erfindungsgemäß ausgebildeten Sichtschutzzaun,

Fig. 4

eine Seitenansicht des Sichtschutzzauns nach Fig.3,

Fig. 5

eine Draufsicht auf eine weitere Ausführungsform der Erfindung und

Fig. 6

eine Seitenansicht auf die Ausführungsform nach Fig. 5.

The invention will be described in more detail below with reference to an embodiment with reference to the figures; in these show:

Fig. 1

a schematic plan view of a first plate-shaped braiding of an inventively formed screen,

Fig. 2

3 is a perspective view of a second embodiment of a braiding strip of a visual protection designed according to the invention, which is designed as a rolled product,

Fig. 3

a schematic longitudinal section through an inventively designed privacy fence,

Fig. 4

a side view of the screen fence after Figure 3 .

Fig. 5

a plan view of a further embodiment of the invention and

Fig. 6

a side view of the embodiment according to Fig. 5 ,

Fig. 1 shows a braid tape 1 of an inventively formed screen, which is formed as a plate-shaped element with a predetermined length and width is. In the braid tape 1, a plurality of openings 2 are formed, whose width is chosen so small that the openings 2 form a sound-absorbing microperforation. The openings 2 can be formed as passage openings, so that they completely penetrate the braiding, or as recesses closed on one side, ie in the manner of a blind hole. A mixed design of the openings 2 is possible.

The openings 2 extend substantially over the entire surface of the braiding strip 1 and are in particular distributed uniformly over the surface of the braiding strip.

In Fig. 2 a braid strip 1 'is shown, which is designed as a roll product. Accordingly, on the left side of the Fig. 2 to see a rolled-up region 3 of the braiding tape 1 ', from which the braided tape 1' can be unrolled in its desired length and then cut to the desired length.

In the 3 and 4 is the braid tape 1, 1 'according to the Fig. 1, 2 interwoven between vertically arranged, parallel bars 4 and with its in 3 and 4 left end attached to an end post 5. Out Fig. 3 It can be seen that the braiding tape 1,1 'is in the usual way in each case passed through the formed between two adjacent vertical bars 4 meshes, in order in this way the in Fig. 3 to form an apparent, braided structure. In principle, it is also possible that the braiding tape 1, 1 'is not passed through each successive stitch, but only through every second or third etc. stitch.

In the side view Fig. 4 It can be seen that a plurality of braids 1, 1 'are parallel to each other so interlaced with the vertical bars 4, that in each case two adjacent Braids 1,1' alternately to the vertical bars 4 are guided around. That is, in each case a braid strip 1, 1 'around the front of the even vertical bars 4 and around the back of the odd vertical bars 4 is guided, while each of the subsequent braid strip 1, 1' to the back of the even vertical bars 4th and around the front of the odd-numbered vertical bars 4.

Furthermore, in Fig. 4 to recognize that the vertical bars 4 intersect with horizontal bars 6 and are connected thereto, so that a grid-like base element 7 is formed. In particular, a horizontal rod 6 is provided as an upper boundary of the lattice-like base member and a in the Fig. 4 not shown, further horizontal bar 6 is provided as the lower boundary of the lattice-like basic element 7. How out Fig. 4 can be seen, even more horizontal bars 6 can be arranged in intermediate areas. While in the figure, for example, after three adjacent braided bands 1, 1 ', a corresponding horizontal bar 6 is shown, for example, after each braid strip 1, 1' such horizontal bars 6 may be provided. Other distances are possible.

From the FIGS. 5 and 6 It can be seen that the braided tape can be formed as a hollow chamber element 8. For this purpose, the braiding strip comprises two surface elements 9 arranged in parallel, which are connected to one another via strip-like elements 10 and at the same time spaced from one another, so that cavities 11 are formed between the surface elements 9. In the view according to Fig. 6 the front surface element 9 is omitted in order to recognize the interior of the braiding. It can be seen that the strip-like elements 10 can be arranged parallel to one another and transversely to one another in order to form a final edge of the braided strip and, on the other hand, to achieve improved stiffness of the braided strip. In the plan view Fig. 5 is the top, horizontal strip-like element 10 omitted to the between to recognize the vertically extending strip-like elements 10 formed cavities 11.

LIST OF REFERENCE NUMBERS

1, 1 '

plaited

2

openings

3

rolled up area

4

vertical bars

5

End post

6

horizontal bars

7

grid-like basic element

8th

Hollow element

9

surface elements

10

strip-like elements

11

cavities

Claims (15)

1. A screening wall or a screening fence having a lattice-like base element (7) into which a woven strip (1, 1') or a plurality of woven strips (1, 1') is/are interwoven,
   characterized in that
   a plurality of openings (2) formed as sound-absorbing microperforations are formed in the woven strip (1, 1') or in the woven strips (1, 1').
2. A screening wall or a screening fence in accordance with claim 1, characterized in that
   at least some of the openings (2) have a maximum width of less than 1 mm, in particular of less than 0.5 mm, preferably of less than 0.3 mm.
3. A screening wall or a screening fence in accordance with claim 1 or claim 2, characterized in that
   at least some of the openings (2) have a circular, oval, multiangular (polygonal), rectangular, square and/or triangular cross-section.
4. A screening wall or a screening fence in accordance with at least one of the preceding claims,
   characterized in that
   at least some of the openings (2) are formed as passage openings.
5. A screening wall or a screening fence in accordance with at least one of the claims 1 to 3,
   characterized in that
   at least some of the openings (2) are formed as recesses closed at one side.
6. A screening wall or a screening fence in accordance with at least one of the preceding claims,
   characterized in that
   the openings (2) are arranged distributed substantially uniformly over the surface of the woven strip (1, 1') or of the woven strips (1, 1').
7. A screening wall or a screening fence in accordance with at least one of the preceding claims,
   characterized in that
   the woven strip (1, 1') or the woven strips (1, 1') substantially or completely comprises/comprise plastic, in particular PVC and preferably hard PVC.
8. A screening wall or a screening fence in accordance with at least one of the preceding claims,
   characterized in that
   the woven strip (1, 1') or the woven strips (1, 1') comprises/comprise UV-resistant material;
   and/or
   in that the woven strip (1, 1') or the woven strips (1, 1') comprises/comprise elastic material.
9. A screening wall or a screening fence in accordance with at least one of the preceding claims,
   characterized in that
   the woven strip (1, 1') or the woven strips (1, 1') has/have a length of approximately between 1.5 m and 3.5 m, in particular of approximately between 2 m and 3 m, preferably of approximately 2.5 m;
   and/or
   in that the woven strip (1, 1') or the woven strips (1, 1') has/have a width of approximately between 15 cm and 25 cm, in particular of approximately between 18 cm and 21 cm, preferably of approximately 19 cm;
   and/or
   in that the woven strip (1, 1') or the woven strips (1, 1') has/have a thickness of approximately between 1 mm and 3 mm, in particular of approximately between 1.5 mm and 2 mm.
10. A screening wall or a screening fence in accordance with at least one of the preceding claims,
    characterized in that
    the woven strip (1, 1') or the woven strips (1, 1') is/are panel-shaped.
11. A screening wall or a screening fence in accordance with at least one of the preceding claims,
    characterized in that
    the woven strip (1, 1') or the woven strips (1, 1') is/are configured as rolled goods.
12. A screening wall or a screening fence in accordance with at least one of the preceding claims,
    characterized in that
    the woven strip (1, 1') or the woven strips (1, 1') is/are configured as hollow chamber elements.
13. A screening wall or a screening fence in accordance with at least one of the preceding claims,
    characterized in that
    the screening fence is configured as a double post woven fence.
14. A screening wall or a screening fence in accordance with at least one of the preceding claims,
    characterized in that
    a plurality of woven strips (1, 1') extending in parallel with one another are interwoven into the lattice-like base element (7).
15. A screening wall or a screening fence in accordance with at least one of the preceding claims,
    characterized in that
    the lattice-like base element (7) comprises vertical and horizontal bars (4, 6), in particular metal bars, which intersect one another and which are connected to one another at their points of intersection; and in that the woven strip (1, 1') or the woven strips (1, 1') is/are interwoven between spaced-apart horizontal bars or between spaced-apart vertical bars (4, 6).

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