AT503638A2 - HOLLOW BODY FOR CONCRETE CONSTRUCTION INSTALLATION - Google Patents

Description

The invention relates to a hollow body for Betoiibauinstallation with a cavity for in particular electrical equipment and installations such as lights, boxes, clamps or the like installation parts, wherein the hollow body holding parts for its attachment to a formwork and opposite boundary walls, one of which is attachable to the formwork , and wherein the hollow body has an opening which is closed by a entferabares wall part, wherein finally the hollow, polygonal in cross-section or preferably round central part of the hollow body has at least one of the central part outwardly projecting connecting piece, which is connectable to a tunnel, the closed at its end remote from the connection piece by a wall part. ···· · · · · · · * ········ ·· · · · · Μ - 2 -

Such a hollow body is known for example from DE 197 26 892 C2. Such hollow bodies are attached to one of the boundary walls on a concrete formwork, so that later concrete can be applied and the hollow body is embedded in the concrete material, wherein after removal of the formwork, the corresponding concrete component has the hollow body at a location at which the hollow body for the Installation of any, preferably electrical facilities is accessible.

In the known, circular in cross-section hollow bodies in addition a radially projecting connecting piece is provided, in which a tunnel can be inserted, wherein the tunnel is closed at the ends by a wall part. By this arrangement, the installation space for electrical installations and the like is increased, so that it is possible to insert a transformer for a lamp in the tunnel, for example, when the hollow body is poured into the concrete mass by the part to be installed through the exposed opening of the hollow body in introduced the hollow body and inserted into the tunnel.

In the known hollow bodies with connected tunnel generic type occurs in particular if such

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Hollow body are introduced into vertically oriented formwork, which are used for the production of walls, the Eek ekt on that when pouring the concrete, especially when pouring self-compacting concrete high pressure forces acting radially on the tunnel. As a result, the tunnel is deformed and the available installation space of the tunnel is narrowed, which may also be caused by the narrowing and pressing of the tunnel in the area of the plug-in nozzle leaks between the connecting piece and connecting pieces of the hollow body, can penetrate into the concrete mass.

Since the installation space of the tunnel must be used largely completely for the installation of electrical components, such as transformers, a narrowing of the tunnel causes the entire device is unusable, because a suitably sized transformer or the like can not be inserted into the tunnel, if this is shed in the concrete mass.

Based on this prior art, the invention is based on the object to provide a hollow body with tunnel, which ensures a shape retention of the tunnel, even if the hollow body, for example ··· · · · · · · · · · # • · · ············································································································································································································································ Pouring with concrete to be formed wall parts, so that high pressure forces of the concrete, in particular self-compacting concrete, act on the tunnel.

To solve this problem, the invention proposes that the tunnel with a plug-in socket on the connection piece is plugged or plugged.

Contrary to the teaching of the prior art, the tunnel is not plugged into the connecting piece of the hollow body with the plug neck, but plugged onto this connection piece. As a result, a certain stabilization of the tunnel is achieved, so that it can better withstand the forces acting on concrete during casting and setting of the concrete forces, so that a better shape retention is achieved than is possible in the prior art.

Since such tunnels are often relatively long in length, the above measure is often insufficient. For this reason, it is alternatively or additionally provided that the tunnel is round in cross-section at least in the region which is not supported by the connecting piece in the attached position, or in cross-section of a 1 · ♦ ·· ···· Μ ·· • English:. German: English:. German: v3.espacenet.com/textdoc? Μ -5-

Rectangular shape is formed approximately lind convex outwardly curved wall surfaces, which merge into each other in the corner areas and the longitudinal edge regions over a large radius.

Due to the corresponding cross-sectional shape of the tunnel, it is achieved that, during casting of wall parts, the embedded hollow body together with the tunnel is dimensionally stable. Although the cross-sectionally round design of the tunnel is particularly advantageous in terms of pressure, but such a shape is often not well suited for the installation of corresponding electrical components, such as transformers or the like. For this reason, a substantially rectangular cross-sectional shape of the tunnel is preferred. In this cross-sectional shape, the side walls and the end wall of the tunnel are crowned convex to the outside and the transitions of the wall parts into each other in the corner regions and in the region of the longitudinal edges are made in a relatively large radius.

This ensures that when casting wall parts or the like made of concrete, in particular self-compacting concrete, despite the high pressure forces acting the tunnel maintains its shape and is not deformed. As a result, this ensures that the desired installation space, which is formed by the tunnel, is not deformed or narrowed. In addition, it is also achieved that a secure and tight fit of the plug-in socket is ensured on the connecting piece of the hollow body.

In addition, it is provided that the plug neck of the tunnel at the free end has a transversely projecting narrow flange edge.

Also by this training, a stabilization of the plug-in socket is achieved at least in the end region, which is plugged onto the connecting piece of the hollow body.

A further preferred embodiment is seen in that the connection clip of the hollow body extends over almost the entire height of the hollow body and the connecting piece in the clip on the connection plugged area has a larger cross-sectional dimension than the tunnel in the region projecting therefrom, wherein between these two areas a continuously tapering region is formed from the plugged-on region to the region protruding therefrom, the optional longitudinal edges and connecting edges of which extend rounded to the two regions. ··· ♦ · · · · · · · · · · · · · ·

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With this design, it is possible to insert a corresponding fitting through the opening of the hollow body in the extended connection insert and then insert into the tapered region of the tunnel, wherein the tapered region of the tunnel can be adapted to the object to be installed relatively tight. Despite this design, a shape retention when casting in concrete is ensured because the transition from the widened region to the tapered region is continuously formed and the longitudinal edges in the region of the transition in a relatively large radius rounded.

Under certain circumstances, it is preferable for the tunnel to have stiffening ribs, preferably on the outside, in the region of the plug-in connection and optionally in the tapered region between the plug-in connection and the region protruding therefrom.

With this design, the stabilization of the tunnel can be positively influenced, wherein the externally mounted stiffening ribs do not restrict the installation space within the tunnel.

If only the installation of relatively short additional parts in the tunnel is desired, it is provided that the Λ

The tunnel section of the tunnel is about the same length as the plug-in socket.

If longer built-in parts to be introduced into the tunnel or more components are to be inserted one behind the other in the tunnel, it is provided that the projecting portion of the tunnel has a length which is a multiple of the length of the plug-in socket.

In order to enable a secure positioning of the tapered tunnel on the formwork, provision is made for the tunnel, preferably near its closed end and in the tapered region, to have supporting parts which are supported on the formwork in an assembly target position.

Due to the rejuvenation of the tunnel, a distance of the tunnel from the corresponding formwork is achieved so that the reinforcement placed on the formwork can be carried out under the tunnel without the tunnel interfering with it.

In addition, it can be provided that a perforated mounting auxiliary part protrudes from the wall part closing the end of the tunnel. ··· «♦ I I I I I · · · · · · · · · ► ► ► ► ► ► ···························

This perforated mounting aid can be used to perform guy wires, which are connected to the reinforcement to ensure a secure positioning of the parts when casting the concrete.

In addition, it can preferably be provided that the connecting piece of the hollow body has in its wall at least one separable wall part and the plug-in socket on a wall portion in this plug-in overlapping wall portion has a perforation whose size is adapted to the separable wall part.

It is possible in this way, ausutrennen corresponding wall parts of the connecting piece, for example, to be able to connect adjacent hollow body with pipes or the like. In this case, the perforation of the plug-in socket is an aid to the installer, so that it can remove a corresponding wall part with a corresponding tool in the connecting piece. The cutting tool is guided by the perforation of the plug-in socket or he gives at least an aid in the leadership of the tool.

Instead of the break-out wall part or in addition, a pierceable membrane may be provided from a soft component.

In addition, it is provided in a conventional manner, that the connecting piece locking before jumps, which are attacked by locking recesses of the plug connector of the tunnel in the inserted position.

As a result, it is possible aufzustecken the plug neck on the connection and lock in the inserted position, so that a secure positioning of the parts is achieved before pouring concrete.

A preferred development is yet to be seen in that the connecting piece at least one protruding pipe socket is provided, which serves to accommodate and optionally fix corrugated pipes of different diameters, and that the plug-in at least one edge-open in the insertion direction recess has in the plug-in position of the plug-in socket on the connecting piece of the pipe socket is taken.

The training and special function of such pipe socket is described and explained in the earlier European application 05405397.0. By the specified training, it is possible to connect to the pipe socket of the connecting piece corrugated pipes with a small diameter or large diameter. Due to the formation of the corresponding open-edged recess on 1 ················································ ·····························. • • • • • • • «··

It is possible in spite of the arrangement of the pipe socket plug-in socket on the connection aufzustecken and secure in desired position, for example by Rasttang without disturbing the pipe socket, because it can initiate the sliding of the plug-in socket in the free space, by the open-edged recess is formed. The open-edged recess additionally serves as a guide when inserting the plug-in socket.

In order to achieve a stiffening in the region of this recess is provided that the Ausnehmtang is surrounded by a rib, which optionally merges into the flange edge.

To ensure that when casting the component with concrete no concrete material can penetrate into the interior, it is provided that the pipe socket has a breakable bottom part.

This breakable bottom part can be broken when connecting a corrugated tube, so that either a small corrugated tube inserted through the pipe socket and located at a located behind the end of the pipe socket Λ ·· ·· · · «t · · · · · · · · · · · · · · · · · A ·

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Locking element can be locked. Also, a larger corrugated pipe can be inserted into the pipe socket, which then rests against a shoulder of the pipe socket, which remains after breaking out of the bottom part in the pipe socket. In this case, locking elements are provided in the pipe socket, which hold the inserted corrugated pipe latching.

Preferably, it is provided that the pipe socket has latching means for latching a corrugated pipe.

In particular, it is provided that the pipe socket has a Einstecktiefenbegrenzungsanschlag for a corrugated pipe.

Embodiments of the invention are illustrated in the drawings and described in more detail below. It shows:

Figure 1 shows a hollow body for the

Concrete construction installation with a tunnel in a pre-assembly position;

Figure 2 would also be in use; · ·· ·· # ···· ···················································································· • · · · · · ··· ^ 0 · · ··· · ····

FIG. 3 shows the tunnel in a detail view in FIG

Side view; Figure 4 also seen from the front; Figure 5 also seen in section AA of Figure 3; Figure 6 also seen in an oblique view from behind; FIG. 7 likewise seen in oblique view from FIG.

Figure 8 and 9 seen a variant of the tunnel obliquely from and obliquely behind;

Figure 10 shows another variant in side view;

FIG. 11 is a detail enlargement of the detail XI of FIG.

Figure 12 seen the component from obliquely below; Λ •····················································································································································. · · · · Β · * ······

Figure 13 seen the detail XIII of Figure 12 as a detail;

FIG. 14 shows a hollow body according to the invention seen obliquely from below;

Figure 15 seen the hollow body obliquely from above;

FIG. 16 a detail enlargement of the detail XVI of FIG. 15;

Figure 17 seen the hollow body obliquely from below;

Figure 18 shows the detail XVIII of Figure 17 in a detail view.

In the drawing, a hollow body 1 is shown for the concrete construction installation. This hollow body 1 is shown only as an example, wherein there are various different shapes of such hollow body. The hollow body 1 has a cavity, which serves in particular for electrical equipment and installations, such as lights, boxes, clamps or the like installation parts. Before pouring • · · ·

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of the hollow body 1 in concrete mass, the hollow body 1 is attached to a formwork, which is not shown in the drawing, but is to be arranged in the drawing figure 1 below the hollow body.

The hollow body 1 may for this purpose have holding parts, which serve for its attachment to the formwork. Furthermore, the hollow body 1, which in the exemplary embodiment has circular cross-section, two opposite Begrenzungswandungen (top and bottom), of which in the embodiment, the lower is fastened to the formwork, wherein the hollow body 1 preferably has an opening below, which can be removed by a Wall part is closed. It is thus possible, after pouring the hollow body 1 in concrete mass to remove the wall part to make the installation space of the hollow body 1 accessible. The circular in the embodiment in the middle section of the hollow body 1 has a projecting radially outward connection piece 2. This connection piece is plug-in connection with a tunnel 3, which is closed at its end facing away from the connecting piece 2 by a wall part 4. · ♦ ·· ·· · ♦ ·· ·

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According to the invention, the tunnel 3 has a plug connection 5 with which it can be plugged onto the connecting piece 2. The installation target position is shown in FIG. In addition, the tunnel 3 is designed so that it is round in cross-section at least in the region which is not supported in the Aufstecklage according to Figure 2, or as shown in the embodiment, a rectangular shape is approximately formed and convex towards outer curved surfaces 6, 7, which merge into each other in the corner areas 8 and in the region of the longitudinal edges 9 over a relatively large radius, so that sharp-edged transitions are avoided. This design ensures that the tunnel 3 can absorb high compressive forces through the concrete even with a relatively thin wall thickness, without the tunnel 3 being deformed or restricted by the concrete material.

Preferably, the connecting piece 5 of the tunnel 3 at the free end on a transversely projecting narrow flange edge 10, which leads to an additional stabilization.

As can be seen in particular from FIG. 1, the connecting piece 2 of the hollow body 1 extends over almost the entire height of the middle part of the hollow body 1. The plug-in piece 5 has a cross-sectional dimension adapted to it, wherein the tunnel 3 adjoining the connecting piece 5 is smaller in cross-section is trained. Between the plug-in socket 5 and the actual tunnel 3, a continuously tapered region 11 is formed, the longitudinal edges and the connecting edges of the plug connection 5 and rounded to the actual tunnel 3, so that here too sharp edges or the like are avoided, which negatively the formality could influence.

Another, improving the shape retention training is that the tunnel 3 in the area of the plug-in socket 5 and in the transition area 11 stiffening ribs 12 has, which protrude outward. The projecting from the intermediate region 11 portion of the tunnel 3 may have approximately the same length as the plug-in socket 5, as shown in the embodiment of Figure 8 and 9. Here, the tunnel then serves to accommodate relatively small components.

In the embodiment according to FIGS. 1 to 7, the projecting area of the tunnel 3 has a length which is one

Multiple the length of the plug-in socket 5 is, so that in the tunnel 3 relatively long components or even several components can be inserted one behind the other. For securing the position of the tunnel 3 in the arrangement on the formwork, the tunnel 3 near its closed end (at 4) and in the tapered region 11 support members 13 which are supported in assembly target position on the formwork. In addition, the underside of the tunnel 3 has a considerable distance from the formwork, so that laid on the formwork reinforcement or the like can be arranged below the tunnel 3.

In addition, protrudes from the end of the tunnel 3 closing wall part 4 from a perforated mounting auxiliary part 14. This serves to pull guy wires, which can be fixed to the reinforcement to position the entire part.

The connection clip 2 of the hollow body 1 has in its wall at least one of separable wall part 15, while the plug-in socket 5 at the appropriate location on a wall portion in this cross-over wall portion has a hole 16 whose size is the Λ ······· ··· ♦ * · * »····« · «······················································································ · · «. ** · * ·· ·· detachable wall part 15 is adapted. As a result, an aid is given to the user, if he wants to disconnect the wall part 15, by then he can make a corresponding separation cut oriented on the perforation 16. In the thus exposed opening, a conduit or the like may be used to connect adjacent installations.

Finally, the connecting piece 2 RastvorSprünge 17 which are attacked by locking recesses 18 of the plug-in socket 5 in the inserted position, so that the parts are securely connected to each other.

As can be seen in particular from the embodiment of Figure 10 to Figure 18, the connection of the connecting piece 2, the arrangement of two protruding pipe socket 19 is provided. These pipe sockets 19 are provided on opposite side surfaces of the connection nozzle 2 in the lower region. These pipe sockets 19 are used for receiving and optionally for fixing corrugated pipes of different diameters. Uta despite this arrangement of the pipe socket 19, the connecting piece 5 on the connection clip 2 to be able to completely attach, the plug-in socket 5 according to the number and

Arrangement of the pipe socket 19 provided, open in the direction of insertion recesses 20, in which in the inserted position of the plug-in socket 5 on the connecting piece 2 of the respective pipe socket 19 is received. The recess 20 is surrounded by a rib 21, which merges into the flange edge 10 of the plug-in socket 5. As a result, a certain stiffening in the region of the recess is achieved.

So that no concrete material can penetrate into the cavity of the hollow body 1 during concreting, the pipe socket 19 is provided with a breakable bottom part. This bottom part is ausbrechbar about a striking neck by the user acts on the impact pipe with a tool, thereby breaking the bottom of the pipe socket 19. In addition, the pipe socket 19 on the inside and following its gehauseinnenseitiges end locking means for locking corrugated pipes. If the part 22 is broken, a collar remains within the pipe socket 19, which forms a step. This collar forms a Einstecktiefenbegrenzungsanschlag for a corrugated pipe of larger diameter, which is inserted into the pipe socket 19, is held by means of corresponding locking means in the desired position and rests with its end to the Einstecktiefenbegrenzungsanschlag. 1 ···· ·" • · ·· ·· · • · · · · • · · · · ·

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The invention is not limited to the embodiment, but in the context of the disclosure often variable.

All new, disclosed in the description and / or drawing single and combination features are considered essential to the invention.

Vienna, April 20, 2007

Claims (16)

Λ ·························································································································································································································· , MüHner Dlpl.-Ing. Katschinka OEG, Patentanwaltsksnzlai Weihburggasse9 Kaiser GmbH &amp; Co. KG 1010 Vienna D-58579 Schalkstaühle (DE) 16 / Ö 43282 Claims; 1. hollow body (1) for the concrete construction installation with a hollow space for particular electrical equipment and installations such as lights, boxes, clamps or the like installation parts, wherein the hollow body (1) holding parts for its attachment to a formwork and opposite boundary walls has, of which one on the formwork is fastened, and wherein the hollow body (1) has an opening which is closed by a removable wall part, wherein finally the hollow, polygonal in cross-section or preferably round central part of the hollow body (1) at least one of the central part to the outside projecting connecting piece (2), which is connectable to a tunnel (3), which at its connection to the connection (2) opposite end by a wall part (4) is closed, characterized in that the tunnel (3) with a plug neck ( 5) on the connection clip (2) can be plugged or plugged. 2. Hollow body according to the preamble of claim 1, in particular according to claim 1, characterized in that the tunnel (3) at least in the region which does not clip in the on position of the connection (2) is supported, ·· ··· · ··· ········································································································································································································································· is round or is formed approximately in cross-section of a rectangular shape and convex curved convex wall surfaces (6, 7) has, in the corner areas (8) and the longitudinal edge regions (9) over a large radius into each other. 3. Hollow body according to claim 1 or 2, characterized in that the plug-in socket (5) of the tunnel (3) at the free end has a transversely projecting narrow flange edge (10). 4. Hollow body according to one of claims 1 to 3, characterized in that the connecting piece (2) of the hollow body (1) extends over almost the entire height of the hollow body (1) and the connecting piece (5) in the clip on the (2 ) has a larger cross-sectional dimension than the tunnel (3) in the region projecting therefrom, wherein a region (11) which continuously tapers from the plugged-on region to the region protruding therefrom is formed between these two regions, its optionally present longitudinal edges and connecting edges rounded to the two areas. 5. Hollow body according to one of claims 1 to 4, characterized in that the tunnel (3) in the region of the plug-in socket (5) and optionally in the tapered region (11) between plug-in socket (5) and the region projecting therefrom stiffening ribs (12), preferably on the outside, has. 6. Hollow body according to one of claims 1 to 5, characterized in that the projecting portion of the tunnel. (3) has approximately the same length as the plug neck (5). 7. Hollow body according to one of claims 1 to 5, characterized in that the projecting portion of the tunnel (3) has a length which is a multiple of the length of the plug-in socket (5). 8. Hollow body according to one of claims 1 to 7, characterized in that the tunnel (3), preferably near its closed end and in the tapered region, supporting parts (13) which are supported in assembly target position on the formwork. 9. Hollow body according to one of claims 1 to 8, characterized in that from the end of the tunnel (3) ····································································· • ················································································································································································································································ ) protrudes. 10. Hollow body according to one of claims 1 to 9, characterized in that the connecting piece (2) of the hollow body (1) in its wall at least one separable wall part (15) has lind of the connecting piece (5) on a wall part in the inserted position cross-wall portion has a perforation (16) whose size is adapted to the detachable wall portion (15). 11. Hollow body according to one of claims 1 to 10, characterized in that the connecting piece (2) locking before jumps (17) has, which are engaged by latching recesses (18) of the plug connector (5) of the tunnel (3) in the inserted position. 12. Hollow body according to one of claims 1 to 11, characterized in that at the connecting piece (2) at least one protruding pipe socket (19) is provided, which serves for receiving and optionally fixing corrugated pipes of different diameters, and that the plug neck (5) at least in the plug-in direction open-edged recess (20), in the inserted ► 1 ► 1 tt ··· · · · · · · · · · ············································· ··· ············································································································································································································································· ) is recorded. 13. Hollow body according to claim 12, characterized in that the recess (20) by a rib (21) is surrounded, which optionally passes into the flange edge (10). 14. Hollow body according to claim 12 or 13, characterized in that the pipe socket (19) .ein ausbrechbares bottom part. 15. Hollow body according to one of claims 12 to 14, characterized in that the pipe socket (19) has latching means for latching a corrugated tube. 16. Hollow body according to one of claims 12 to 15, characterized in that the pipe socket (19) has a Einstecktiefenbegrenzungsanschlag for a corrugated pipe. Vienna, April 20, 2007