WO2008031610A1

WO2008031610A1 - Module comprising light-permeable fibres

Info

Publication number: WO2008031610A1
Application number: PCT/EP2007/008025
Authority: WO
Inventors: Oliver Fischer
Original assignee: Delunamagma Industries Gmbh
Priority date: 2006-09-15
Filing date: 2007-09-14
Publication date: 2008-03-20
Also published as: EP1943394A1; DE102006044160A1

Abstract

The invention relates to a module comprising light-permeable fibres, said module comprising a bound concrete structure in which individual optical waveguides are inserted in layers in such a way that they are parallel to each other and the front sides thereof project over the respective front sides of the concrete material. Said optical waveguides guide a light guided into a front side of an embedded optical waveguide through to the other side. The fibre-optical waveguides are bound in a textile fabric.

Description

Building block with translucent fibers

The invention relates to a building block with translucent fibers according to the preamble of claim 1.

With the subject matter of WO 03/097954 A1 a building block with translucent fibers has become known, the building block consisting of a bound concrete in which individual light guides are laid in layers. It is a very complex and difficult manufacturing process, because it must first be prepared a layer of concrete, and in the still wet concrete by hand, individual optical fibers as parallel as possible side by side inserted in such a way that the respective optical fiber with its one end on one Side of the concrete material and with the other end face on the opposite side of the concrete material looks out. If this known concrete material is irradiated from one end side with a light source, then the optical fibers embedded in the concrete guide the light through the concrete to the other side. He becomes translucent, so to speak.

With the subject of DE 93 10 500 Ul the basic idea of a translucent component has become known, wherein a concrete block is used, which is suitable for the production of walls, ceilings or floors. Again, it is merely disclosed in the wet concrete mass, just before setting insert fiber optic cable, which are then enclosed by the setting and curing concrete, so that they are ultimately poured into the device.

Again, there is the disadvantage that it is spoken of individual optical fiber cables, which usually have to be inserted by hand, which leads to unacceptably high production costs. The invention is therefore the object of developing a module with translucent fibers and a method for producing this module so that the production costs are substantially reduced and that the production is simplified and more reliable as a whole.

To achieve the object, the invention is characterized in that the optical fiber fibers are bonded in a textile fabric.

A method for producing such a translucent building block is then that a textile fabric, in which the optical fibers are bonded, are placed layer by layer in a mold and successively covered by the concrete.

With the given technical teaching, there are significant advantages over the prior art.

Due to the inventive idea, fiber optic fibers now no longer individually and parallel to one another by hand in a mold insert, but to fix them previously in a fabric, there is the advantage that a complete textile tile surface can be inserted into the concrete casting mold. It thus eliminates the need to take individual optical fiber in the hand and insert as parallel as possible in the mold. This also avoids a possible risk of breakage for the optical fiber fibers, because these then easily break when inserted by hand into the casting mold. This is avoided by the invention in that they are fixed from the outset in a textile fabric and thus secured against breakage and relatively stable in position in the textile fabric.

This results in a significant acceleration of the production, because it is now complete continuous mats with it Bound optical fiber inserted into the mold, the mat corresponds in dimensions to the later module.

For the nature and design of the textile fabric, different fabrics are claimed.

In a first embodiment of the invention, it is provided that as a textile fabric knitted polyester threads are used in which relatively parallel to each other, the optical fibers are integrated. It is therefore active meshes in whose mesh composite, the optical fibers are involved and are thus kept parallel and at a distance.

Instead of using polyester fibers as a textile fabric, of course, other fibers can be used, such. As well as natural fibers or synthetic fibers or such fibers that dissolve under the action of concrete slurry.

Instead of producing a knitted fabric, of course, other body bonds come into consideration. Such textile bonds are z. B. all known fabric bindings, such as are known as woven fabric, knitted fabric, as nonwoven composites and the like. Accordingly, all textile fabrics are claimed which succeed in fixing optical fiber fibers in parallel and at a distance, so that they can be inserted together with the textile fabric into the casting mold as a whole.

Of course, such textile fabrics can also be formed twice, ie it can be double-layered fabric, knitted or crocheted fabrics or said fabrics can also from the outset in the form of certain curves, ornaments or other form-forming La- be inserted in order to produce a certain illuminated ornamentation in the later, made of it material.

Incidentally, the invention is not limited to the use of a concrete material. Although it is preferred in the context of the present invention, if in the mold, a self-compacting concrete is filled, which is offset with a hardening renter. This results in that after pouring the concrete into the mold an adjustable time of z. B. 3 hours until the beginning of ligation passes.

The invention is of course not limited to self-compacting concrete materials, but there are all building materials into consideration, in which when freshly mixed with water mixture of z. As cement is used as a binder with finer and coarser aggregates, such as concrete sand, concrete gravel or rubble. In the hardened state, this results in an artificial conglomerate rock.

Instead of a concrete as a binder and other binders can be used, such as. As clays, water limes, plastics, wood materials, plasters, Corian and mineral casting and the like.

When using concrete, a distinction is made between heavy concrete, heavy concrete and lightweight concrete, depending on the volume weight. All of these types are claimed to be essential to the invention, the lightweight concrete being obtained in particular by lightweight, porous aggregates in order to facilitate further processing of this material. Of course, gas or foam-forming substances can also be added in order to reduce the volumetric weight.

Such gas or foam-forming substances are z. B. Expanded slate and the like substances more. Of course, concrete admixtures can be used, the z. As a resistance to water penetration, show a pore-sealing and water-repellent effect and the like.

It is also possible to add additives for improving the breaking strength or the frost resistance.

Instead of the aforesaid binders, it is also possible to use mats made of marble gypsum with a plastic bond, as has recently been used for the production of sanitary sinks and the like. Even in such setting plastic materials, it is readily possible to insert the structures according to the invention, in which the optical fibers are bound by means of a body bond.

The subject of the present invention results not only from the subject matter of the individual claims, but also from the combination of the individual claims with each other.

All information and features disclosed in the documents, including the abstract, in particular the three-dimensional design shown in the drawings are claimed, as far as they are new individually or in combination with the prior art.

In the following, the invention will be explained in more detail with reference to drawings illustrating several execution paths. Here are from the drawings and their description further features essential to the invention and advantages of the invention.

Show it: Figure 1: schematically the production of a translucent concrete material in a mold;

Figure 2: schematically the section along the line II-II in Figure 1;

Figure 3: section through a concrete material according to the invention;

Figure 4: view of the visible side of the concrete material of Figure 3, when it is illuminated from the back;

Figure 5: a first embodiment for the production of ornaments of optical fibers;

Figure 6: enlarged and partial representation of a textile fabric in plan view showing the body bond of mutually parallel optical fibers;

FIG. 7 shows a second exemplary embodiment for producing a luminous ornament in a concrete material;

Figure 8: a third embodiment in which the illuminated side of the concrete material is covered with stencils or covering colors; and

FIG. 9: the visible side of the arrangement according to FIG. 8.

In Figure 1, a mold 1 is shown schematically, which consists essentially of a rotating trough, which may have any shape. The trough can be rectangular, square or round. In the interior 2 of the mold 1 in this case a lifting table 3 is arranged, which is in the arrow directions 8 down gradually moved.

Above the lifting table 3, a chute 4 is arranged, via which the still liquid concrete 5 in the direction of arrow 6 on the O- berfläche of the lifting table 3 abandoned and distributed there. Thus, a first layer 9 of concrete is formed, as shown in FIG.

The first layer of concrete, for example, has a height of 3 mm and this layer is now inventively a textile fabric 11 is placed, which preferably fills the entire surface of the lifting table 3, d. H. which preferably corresponds to the later outer dimensions of the concrete block produced with the lifting table 3.

Of course, the invention is not limited thereto. It can also be smaller sections of textile fabrics 11 are inserted or these fabrics can also multiply distributed and piecewise form a layer.

After pouring the first layer 9 and the laying of the textile fabric 11, the lifting table is moved a small amount down in the direction of arrow 8, so that in the intermediate space upwards in the direction of the circumferential walls 7 forms a receiving space in which the second layer 10 of the concrete is poured.

Also, this layer has, for example, a thickness of 3 mm and as soon as this layer is applied, a new layer of a textile fabric 11 is applied to the top layer 10 and inserted. The layers on the superimposed and mutually parallel textile fabrics 11 are thus penetrated by the still liquid concrete and firmly integrated into the concrete matrix.

It is important that the textile fabric 11 is formed so that optical fibers 12 extend from one end face of the concrete block to the other end face, because they are held in the fabric 11 in this manner.

In the completion of a concrete block 16 can be seen that additional aggregates 17 are included in the concrete mass 18, so that the concrete material has an attractive appearance, even if it is not illuminated. It can be seen in FIG. 3 that the textile fabrics 11 are each arranged parallel to one another and the respective optical fiber fibers 12 are directed in the direction of the drawing plane of FIG.

A concrete block 16 produced according to FIG. 3 then illuminates according to FIG. 4, when it is illuminated by the light source from the rear, so that the individual illuminated end faces 19 of the optical fibers 12 can be seen.

Now, according to the invention, the optical fibers 12 are bonded in a textile fabric 11, it is readily possible to insert such textile fabrics in the form of spatial designs in the concrete block 16 and curing successively, so that according to Figure 5 corresponding luminescent logos 20, 21st result.

This is possible with individual in the mold 1 inserted optical fiber cables only with extremely high effort, and this allows the invention with little effort, therefore, because the fabric 11 can bend and deform in any position. Such a fabric 11 shows, for example, Figure 6, where it can be seen that in a base container 14 individual polyester fibers are formed as a knit and form there meshes, wherein the meshes, the optical fibers 12 are acted on, thus having a parallel mutual distance from each other.

For the sake of clarity, the optical fiber fibers 12 in Figure 6 at the upper and lower end faces out of the base container 14, which does not correspond to the facts. This is shown only for the sake of clarity, and the binding fibers 13 still partially shown thus extend to the end face of the optical fibers 12. The optical fibers 12 are thus fixed in the base package 14 in the form of a body bond 15.

In addition to the production of luminescent logos 20, 21 in Figure 5 from correspondingly deformed textile fabrics 11, it is of course also possible to cut out a concrete block 16 with a logo incorporated therein and use it in a larger stone slab 22 to achieve a luminous effect in the stone slab 22 there which is not translucent by itself.

Figures 8 and 9 show further Ausfϋhrungsbeispiele, where it can be seen that on one side of the concrete block 16, a light source 23 is arranged, which directs a light in the direction of arrow 24 against the back of the concrete block 16. On this back is z. B. an opaque stencil 26 is arranged, which covers a portion of the light-receiving end faces 19 of the optical fibers 12 so that only a portion of the optical fibers is illuminated on the visible side 25 and in turn a luminous logo 20 is generated according to Figure 9. In another way, however, the stencil 26 can also be opaque, thus forming a shadow through the concrete block 16, so that a shadow-light sensation on the visible side 25 is visible.

It is also possible to cover certain areas of the light-receiving side by opaque covers 27 and leave these covers either (to form a shadow) or to remove the covers 27 later to ensure light transmission at these locations, while in other places the light passage is not possible.

Incidentally, it is provided that after the production of the molding in the casting mold, .1 of this shaping is first cut off at the end faces in order to expose the luminous end faces of the optical waveguide fibers 12. The side edges of the molding preform be cut off, for example, with a depth of 1 cm, so as to expose the end ^sides' of the optical fibers 19 12th

Of course, it is possible to further disassemble the molding thus produced into thin plates in order to produce relatively thin concrete material plates.

As already mentioned, not only concrete slabs can be produced with said method, but z. As well as tiles or shells made of concrete and other materials, except concrete.

Accordingly, the word "building block" in the specification and claims is to be understood as embracing all types of wall, floor or facade coverings. For the light-emitting element shown in FIG. 8, light bulbs, fluorescent tubes, halogen lamps, light-emitting diodes or any other light sources can be used as light sources. The light sources can be adjusted in their brightness adjustable (dimmable) in order to adjust the lighting effect can.

The opaque template 26 may be omitted so that no light-receiving end faces 19 of the optical fibers 12 are covered.

The light sources may have different colors, or filters (not shown in the drawing) may be provided to filter the light passing through the optical fibers 12.

Preferably, the filter or filters are arranged in addition to or in place of the opaque template 26 so as to cover at least a portion of the light receiving end faces 19 of the optical fibers 12.

The light source 23 may be provided separately from the cast stone 16, or it may be integrated with it to form a luminous brick, which may be used as a self-luminous decorative element.

The fact that the optical fiber fibers are easier to handle by their introduction into a textile fabric than individual optical fibers, the inventive method is also suitable for automating the manufacturing process of light modules. drawing Legend

mold

inner space

Lift table

Schütte

concrete

arrow

wall

arrow

Location (concrete)

Layer (made of concrete) textile fabric

optical fiber

bonding fiber

basic container

twill weave

Cast stone

aggregates

concrete mass

front

illuminated Logo

stone slab

light source

arrow

Main page

template

cover

Claims

claims

1. block with translucent fibers for the production of walls, ceilings, floors or the like, wherein the block has a concrete-bonded structure in the layerwise individual light guides are preferably arranged parallel to each other, which protrude with their end faces on the respective end faces of the concrete material and a light introduced at the one end face of the embedded light guide through this to the other side, characterized in that the optical fibers (12) in a fabric (11) are bonded.

2. Module according to claim 1, characterized in that the block in a mold (1) for concrete (5) is made, this having a lifting table (3), which is moved stepwise.

3. Building block according to one of the preceding claims 1 to 2, characterized in that on the surface of the lifting table (3) a first layer (9) of still liquid concrete (5) via a above the lifting table (3) arranged chute (4) is abandoned and subsequently covered with a mono- or multi-piece sheet (11).

4. Block according to one of the preceding claims 1 to 3, characterized in that the lifting table (3) performs a further step in the direction of arrow (8) and subsequently to the surface of the sheet (11) another layer (10) of the still liquid concrete (5) is applied, which penetrates the sheet (11).

5. Module according to one of the preceding claims 1 to 4, characterized in that the bonded optical fibers (12) are relatively stable in position and resistant to breakage in the textile Sheet (11) are held and form a continuous mat of bonded optical fibers (12).

6. Building block according to one of the preceding claims 1 to 5, characterized in that the textile fabric (11) as a woven, knitted and / or knitted fabric (11) is formed.

7. Block according to one of the preceding claims 1 to 6, characterized in that the textile fabric (11) and / or is formed in several layers.

8. Component according to one of the preceding claims 1 to 7, characterized in that the optical fibers (12) are held parallel and / or arcuate in a mesh of knit mesh and at a distance.

9. Block according to one of the preceding claims 1 to 8, characterized in that the optical fibers (12) from the one end face (19) of the concrete block to the other end face (19) are formed.

10. Building block according to one of the preceding claims 1 to 9, characterized in that the concrete (5) is designed as a concrete blockwork (16), wherein the concrete mass (18) comprises additional aggregates (17), which form an attractive appearance.

11. The building block according to one of the preceding claims 1 to 10, characterized in that the fabric is made of polyester, a natural or synthetic fiber or a fiber dissolving under the action of concrete slurry.

12. Component according to one of the preceding claims 1 to 11, characterized in that the optical fibers (12) in the form of spatial designs in the concrete block works (16) are inserted, which form different luminescent logos (20, 21).

13. Component according to one of the preceding claims 1 to 12, characterized in that the textile fabric (11) is deformable in any position and shape.

14. Component according to one of the preceding claims 1 to 13, characterized in that formed by means of individual polyester fibers and knitted fabric (11) has a base container (14), wherein in the mesh, the optical fibers (12) in the form of a body bond (15 ) are fixed and have a parallel mutual distance to each other.

15. Component according to one of the preceding claims 1 to 14, characterized in that the logo having a concrete block (16) in an opaque stone plate (22) can be used and there forms a luminous effect.

16. Component according to one of the preceding claims 1 to 15, characterized in that an opaque stencil (26) partially prevents the light from entering the optical fibers (12) on the light-receiving end face (19), whereby a luminous logo (20) is formed ,

17. Component according to one of the preceding claims 1 to 16, characterized in that the covering of the light-receiving end face (19) with covers (27) forms a shadow.

18. Building block according to one of the preceding claims 1 to 17, characterized in that the concrete made of concrete (5) cast stone (16) after curing at the end faces (19) is cut off to expose the luminous end faces (19) of the optical fibers 12.

19. Building block according to one of the preceding claims 1 to 18, characterized in that the cutting of the concrete block

(16) in relatively thin concrete slabs tiles, facing shells made of concrete (5) and other materials or the like.

20. A method for producing a building block with translucent fibers according to any one of claims 1 to 19, characterized in that in a fabric 11 bonded optical fiber fibers 12 are inserted into liquid concrete (5) and the concrete is then cured.

21. The method according to claim 20, characterized in that the block in a mold (1) for concrete (5) is produced, this having a lifting table (3), which is movable in steps.

22. The method according to claim 20 or 21, characterized in that on the surface of the lifting table (3) has a first position

(9) from still liquid concrete (5) via a above the lifting table (3) arranged chute (4) is abandoned and subsequently covered with a one- or multi-piece sheet (11).

23. The method according to claim 22, characterized in that the lifting table (3) performs a further step in the direction of arrow (8) and subsequently to the surface of the sheet (11) a further layer (10) of the still liquid concrete (5) is applied penetrating the sheet (11).

24. The method according to claim 22 or 23, characterized in that the steps of the method of the lifting table, the Aufauf bring the liquid concrete (5) and the subsequent application of the sheet (11) are repeated several times.

25. The method according to claim 24, characterized in that the repetition of the steps is carried out automatically.

26 lighting element, characterized in that it contains at least one module according to one of claims 1 to 19 and at least one light source 23.

27. Luminous element according to claim 26, characterized in that the at least one light source 23 is integrated with the at least one module.

28. Luminous element according to claim 26 or 27, characterized in that the at least one light source in its brightness and / or color is adjustable.

29. Luminous element according to one of claims 26 to 28, characterized in that it further comprises a filter which filters the light passing through the optical fibers 12 light.

30. Luminous element according to claim 29, characterized in that the filter covers at least part of the light-receiving end faces 19 of the optical fibers 12.