EP1669651A1 - Shuttering for casting an opening through a ceiling - Google Patents

Abstract

The shuttering (1) for the sealing of a ceiling penetration (2) which has been prepared for the routing of one or more utility lines comprises a frame (14) and a support device (16) installed in the frame opening, and at least one flat sealing element (18) supported by the frame and the support device. The size of the frame is adjustable to the dimensions of the ceiling penetration. The frame is formed from profiles which are adjustable in relation to one another. An independent claim is included for a construction kit for the building of a shuttering used for the sealing of a ceiling penetration.

Description

The invention relates to a formwork for the casting of a ceiling breakthrough, which is provided for the passage of one or more installation lines. The invention also relates to a method and a kit for producing such a formwork.

Ceiling openings are provided in buildings to lay installation ducts, for example, from one floor of a building to the next. Such installation cables are eg power and data cables, pipelines for liquids or vapors, pipelines or ducts for ventilation and air conditioning and the like. In the simplest case, the breakthrough consists only of a round opening for the passage of a single line. If multiple installation cables are to be laid, a large, usually rectangular breakthrough is provided through which several lines are guided at the same time. After laying the cables, the breakthrough must be closed. There are certain requirements to be met: the closure of the aperture must effectively prevent fire and smoke transmission and should also prevent the transmission of sound and noise from one floor to the next or from one room to the next. This is usually done by the breakthrough is poured out with suitable means, such as cement, concrete, mortar, mounting foam or mineral foam. To keep the potting compound during the casting in the breakthrough, a formwork is placed in front of the opening. To the curing of the potting compound, the formwork can either be removed or it remains as a lost formwork in place.

The conventional formworks of the prior art have a number of disadvantages. The boarding proves to be relatively expensive, since the casing must be guided around the pipes and should as far as possible no gaps between formwork and pipe should remain. Since the formwork and potting so expensive, they can often not be performed by the installer of the lines themselves, but must be made by a bricklayer.

From the prior art, a sheathing method is known in which a wooden board, a plasterboard or a fiberboard is used, in which holes are drilled according to the diameter and the arrangement of the various lines. Subsequently, the board or plate, e.g. attached under a ceiling opening and the lines are guided through the respective holes. Since the holes must have a slightly larger diameter than the diameter of the lines, remain between the board and line gaps that need to be closed. This often happens by stuffing paper or assembly wool into the gaps. After all gaps are clogged, then a potting compound is poured into the breakthrough. Since the holes must fit exactly to the respective lines, this method is time-consuming and therefore costly.

JP 10185013A discloses a panel for a partition wall in which a net is incorporated as reinforcing means. The panel is not suitable for pouring ceiling openings.

AT 406 397 B discloses a sealing element for sealing building joints and pipe passages. The sealing element consists of a textile carrier which is coated with rubber and on which a flexible soft lead foil is arranged.

The invention has for its object to provide a formwork of the type mentioned, which an even easier installation and safe pouring the Ceiling opening allows. The problem is solved according to claim 1. A particularly suitable method for casting a ceiling breakthrough using such a formwork results from the method claim.

The inventive formwork has a frame and arranged in the frame opening support device. In addition, at least one planar sealing element is provided, which is carried by the frame and the supporting device. During installation, the installation lines, such as plastic pipes, can be passed through the flat sealing element by this is cut open, for example, with a knife. When casting the ceiling breakthrough seals the flat sealing element from the ceiling opening and is supported by the support device. The frame serves both for fastening the planar sealing element and the support device. During assembly, preferably the frame and the sealing element are fixed in the ceiling opening. Subsequently, the support device is attached to the frame from below. Finally, the ceiling breakthrough is poured from the upper floor.

According to a development of the invention, the size of the frame is adaptable to the dimensions of the ceiling breakthrough. Preferably, it is provided that the frame is formed from angle profiles which are adjustable relative to each other.

According to a development of the invention it is provided that the flat sealing element is stretched over the frame. Preferably, it is provided that the flat sealing element is stretched over the frame and clamped to the ceiling opening. This allows a particularly simple installation, wherein the flat sealing element is simultaneously clamped by this at the ceiling opening at the onset of the frame. This also results in a high density, in particular by said spanning the frame opening. The sealing element is preferably a flexible film, for example made of plastic and can be placed over the frame and in particular tensioned.

According to a development of the invention it is provided that the carrying device is formed by at least one elongate element which is supported on the frame. According to a development of the invention, it is provided that the elongated element extends in a loop shape in the frame opening. This makes it possible to pass installation lines and in particular tubes of different diameter through the support device or the loops of the elongate member. Such loops can be formed particularly easily if the elongated element is formed from a flexible band, in particular steel band.

According to a development of the invention it is provided that the frame has profiles with a U-shaped cross-section. On the one hand, this results in a high stability of the frame and on the other hand, the profiles can simultaneously serve to attach the elongated member of the support device. In this case, it is preferably provided that the elongate element is a band and in particular a steel strip which is inserted edgewise in U-profiles of the frame. The edgewise inserted steel strip results in a high stability of the carrying device. In addition, a particularly simple and quick installation is possible. The steel band can be adapted to very different outer dimensions of the frame. An even higher stability can be achieved if, according to a development of the invention, loops of the elongate element are connected to one another by means of clamps.

In the method according to the invention, the frame is inserted into the ceiling opening and the sealing element and the supporting device are fastened to the frame. The insertion of the frame and the fastening of the sealing element can take place substantially simultaneously. In the sealing element at least one opening is incorporated and through this opening an installation line is passed. Preferably, the sealing element is sealed against this installation line. Finally, the ceiling opening from the upper floor is poured out with a casting compound.

A particularly suitable construction set for producing a casing according to the invention comprises profiles for producing the frame, a planar sealing element and means for producing the carrying device.

Further advantageous features emerge from the dependent claims, the following description and the drawings.

Figur 1

schematisch von unten eine räumliche Ansicht eines Deckendurchbruchs mit einer eingesetzten erfindungsgemässen Schalung,

Figur 2

schematisch eine räumliche Ansicht einzelner auseinander gezogener Teile der erfindungsgemässen Schalung,

Figur 3

schematisch von unten eine Ansicht eines Deckendurchbruchs mit einem eingelegten Dichtungselement und einem Profil,

Figur 4

schematisch das Befestigen eines Profils im Deckendurchbruch gemäss Figur 3,

Figur 5

schematisch das Aufbringen eines Schaumstoffbandes auf ein Profil des Rahmens,

Figur 6

schematisch ein Profil mit einem aufgeklebten Schaumstoffband,

Fig. 7 und 8

schematisch einzelne Schritte beim Montieren des Rahmens im Deckendurchbruch,

Figur 9

schematisch die Montage der Tragvorrichtung,

Figur 10

schematisch vom Obergeschoss her eine räumliche Ansicht des Deckendurchbruchs mit teilweise montierter Schalung,

Fig. 11 und 12

schematisch das Hindurchführen einer Installationsleitung,

Figur 13

schematisch vom Obergeschoss her eine räumliche Draufsicht auf den Deckendurchbruch mit montierter Schalung und zwei hindurchgezogenen Leitungen,

Figur 14

schematisch das Ausgiessen des Deckendurchbruchs,

Figur 15

schematisch eine räumliche Ansicht von Einzelteilen einer Schalung gemäss einer Variante,

Figur 16

schematisch eine räumliche Ansicht einer Schalung gemäss der Variante,

Figur 17

schematisch eine räumliche Ansicht der Schalung gemäss der Variante zur Illustration der Verstellbarkeit,

Figur 18

schematisch eine räumliche Ansicht der Variante zur Illustration der Herstellung der Tragvorrichtung,

Figur 19

schematisch eine räumliche Ansicht der Schalung gemäss der Variante mit aufgesetztem Dichtungselement,

Figur 20

schematisch ein Durchbruch mit einer eingesetzten Schalung nach der Variante sowie mit mehreren hindurchgeführten Leitungen und

Figur 21

eine Ansicht gemäss Figur 20, jedoch mit zusätzlichen Leitungen.

Embodiments of the invention will be explained in more detail with reference to the drawing. Show it:

FIG. 1

schematically from below a spatial view of a ceiling breakthrough with an inventive formwork used,

FIG. 2

3 is a perspective view of individual parts of the formwork according to the invention,

FIG. 3

schematically from below a view of a ceiling breakthrough with an inserted sealing element and a profile,

FIG. 4

schematically the fastening of a profile in the ceiling opening according to FIG. 3,

FIG. 5

schematically the application of a foam tape to a profile of the frame,

FIG. 6

schematically a profile with a glued foam tape,

FIGS. 7 and 8

schematically individual steps when mounting the frame in the ceiling breakthrough,

FIG. 9

schematically the mounting of the support device,

FIG. 10

schematically from the upper floor a spatial view of the ceiling breakthrough with partially assembled formwork,

FIGS. 11 and 12

schematically the passage of an installation line,

FIG. 13

schematically from the upper floor forth a spatial plan view of the ceiling opening with mounted formwork and two lines pulled through,

FIG. 14

schematically the pouring out of the ceiling breach,

FIG. 15

3 is a schematic view of individual parts of a formwork according to a variant,

FIG. 16

schematically a spatial view of a formwork according to the variant,

FIG. 17

3 is a schematic view of the formwork according to the variant for illustrating the adjustability;

FIG. 18

3 is a schematic view of the variant for illustrating the production of the carrying device;

FIG. 19

3 is a schematic view of the formwork according to the variant with attached sealing element;

FIG. 20

schematically a breakthrough with an inserted formwork according to the variant and with several passed lines and

FIG. 21

a view according to Figure 20, but with additional lines.

1 shows from below a section of a building ceiling 10, in which a breakthrough 2 is incorporated, which leads from the basement to the upper floor. The opening 2 is substantially rectangular and has, for example, a length of 60 cm and a width of 15 cm. The height of the opening 2 is for example 21 cm. The ceiling 10 may be a solid or wooden ceiling with and without fire requirements. The breakthrough 2 can connect to a building wall, parallel to the edge 5 of the aperture 2 extends.

In the breakthrough 2, a formwork 1 is used, which allows, when passed lines the breakthrough 2 from the upper floor, for example, with Pour out concrete. The formwork 1 seals the breakthrough 2 during pouring and ensures that the potting compound is securely carried during curing.

Essential parts of the formwork 1 are shown in FIG. To produce a frame 14 profiles 24, 24 'and 26 are provided. These profiles are preferably U-shaped in cross-section and made of sheet metal, for example. They can be shortened at least at one end. Two corner connectors 6 are used to connect the profile 24 'with two profiles 26. The angle between these profiles 24' and 26 are adjustable. Dowels 9 are used to attach the profile 24 in the opening 2. For sealing the profiles 24, 24 'and 26 foam strips 7 are provided, which are preferably glued. A flat sealing element 18 is used to seal the frame opening of the frame 14. The flat sealing element 18 is in particular a film, for example a flexible plastic film, which can be cut, for example, with a knife. So that the sealing element 18 remains substantially flat during the pouring out of the opening 2, a support element 16 is provided. This is preferably formed from an elongated element, for example a steel strip, which is oriented as shown edgewise. The width of the support element 16 is dimensioned so that it can be inserted into the cross-sectionally U-shaped profiles 24, 24 'and 26. For further attachment of the frame 14 in the opening 2 holding elements 11 are provided which can be used from the upper floor in the opening 2 and connectable to the frame 14.

The individual assembly steps for mounting the formwork 1 will be explained in more detail below with reference to FIGS. 3 to 14.

With a folding meter 33 or other suitable length measuring instrument, the dimensions and in particular the length L and the width of the opening 2 are measured. According to the length L, a profile 24 is cut to length. In the opening 2, the sealing element 18 is inserted and clamped with the profile 24 as shown. The adhesive on the profile 24 glued foam tape 7 also adheres to the underside of the sealing member 18. The profile 24 is drilled according to Figure 4 with a hand drill 22 and secured with dowels 9 or other suitable connection means according to Figure 4 in the opening 2.

The profile 24 'is connected to two corner connectors 6 with two correspondingly cut profiles 26. On these three interconnected profiles 26, a foam tape 7 according to the arrows 19 (Fig. 5) is glued. This foam tape 7 has on its back a protective film 17, which is peeled off. The corner connector 6 each have a hinge point 35, so that the two profiles 26 can be bent according to the arrows 20 (Fig. 6), for example by 135 °. In particular, these profiles 26 can be bent by more than 90 °. The glued foam tape 7 is stretched at the corners accordingly. By said turning by more than 90 °, it is easily possible to introduce these interconnected profiles in the opening 2.

The profiles 24 'and 26 connected as mentioned above are preferably inserted from below into the aperture 2. The two profiles 26 engage in each case at its end in the already mounted profile 24, as the figure 7 shows. The flat sealing element 18 is clamped between the profile 24 'and the opening 2. According to FIG. 8, the profiles 26 are hammered into the profile 24 'and applied to the sealing element 18 using a fist 21 or another suitable tool. The connectors 6 are designed so that they can move on the profile 24 'here. For an exact adaptation of the frame 14 to the length L of the aperture 2 is possible. The sealing element 18 is thus clamped on the frame 14 and clamped between the frame 14 and the opening 2. At its entire periphery of the frame 14 is glued to the sealing element 18. Protruding areas of the sealing element 18 are cut off with a suitable tool.

Next, according to FIG. 9, the elongated support element 16 is inserted into the frame and in particular into the two profiles U-shaped in cross-section 24 and 24 ', thus forming a support device or support device for the sealing element 18. The elongated support member 16 is, for example, a resilient band, in particular made of spring steel or other suitable resilient material. It will be like this inserted so that it forms according to the figure 9 loops which abut each other and which engage in the profile 24, 24 'or 26. The support member 16 may be withdrawn, for example, from a role, not shown here. An unneeded end 16 a can be separated with a pair of pliers 23. To stabilize the support element adjacent areas are connected to the brackets 31 shown in Figure 1. These brackets 31 are for example steel brackets, which can be snapped onto the support element. In the assembled state, the support element 16 forms a kind of grid, which carries the tensioned over the frame seal member 18 and supports from below.

For an additional fixation of the frame 14 in the opening 2, retaining elements 11 according to the arrows 25 are inserted from the upper floor according to FIG. At the upper end, the holding elements 11 each have a turn 12, which rests on the ceiling 10 according to the figure 13 in the upper floor. At the lower end, the holding elements 11 each have a plurality of bendable tabs 13 which are bent over and below a profile 24 or 24 ', so that the frame 14 is finally fixed to the holding elements 11.

After attachment of the frame 14 in the opening 2, lines 136 and 138 are pushed through the opening 2 according to FIGS. For this to be possible, two openings 29 and 29 'are made in the sealing element 18 (FIG. 13). For this purpose, the lines 136 and 138 are respectively applied from below to the sealing element 14 and with a marking pin 30, the sealing element 18 is marked accordingly with a circle. If necessary, the elastic support member 16 is moved or expanded according to Figure 11 by hand. Within the marked circle, the sealing element 18 is now cut in a star shape. In this case, according to FIG. 13, triangular lobes 28 which rest on the outside of the line 136 or 138 are formed. The sealing element 18 is thus close to the lines 136 and 138 at.

Finally, according to Figure 14, the potting compound 27 is filled from the upper floor into the opening 2 until the required layer thickness is reached. Due to the above-mentioned sealing of the opening 2 with the sealing element 18, the potting compound 27 can not pass down through the opening 2. The support element 16 prevents the sealing element 18 from sagging over the ceiling underside 4 (FIG. 1) during pouring and thus remains largely flat. The support element 16 and the holding elements 11 can be removed after the curing of the potting compound 27. Finally, from the bottom of the opening 2 filled with a suitable mass, for example with plaster to edge 5.

FIGS. 15 to 21 show the production of a formwork 100 according to a further embodiment of the invention. This is assembled with the parts shown in FIG. These parts comprise the above-mentioned sealing element 18, two cords 130 and 132 or similar elongate elements, two L-shaped profiles 24 and two shorter cross-sectionally L-shaped profiles 126, metal brackets 120 and corner brackets 140.

With the profiles 124 and 126 and four corner brackets 140 of the frame 14 shown in Figure 16 is assembled. The dimensions of the frame 114 are adapted to the dimensions of the opening 2, in which the formwork 100 is to be used. Optionally, the profiles 124 and 126 are cut to length.

FIG. 17 shows a narrower frame 114 'and the part 126' to be cut off.

With the two cords 130 and 132, a support member 116 is created. In this case, the two cords 130 and 132 are pulled crosswise into the frame 114, as illustrated in particular the figure 18. To attach the cords 130 and 132 to the profiles 124 and 126, these have a plurality of recesses 128 through which the cords 130 and 132 can be pulled. The string ends are fixed in a suitable manner. The cords 130 and 132, when pulled into the profiles 124 and 126, are stretched relatively taut so as to provide support to the sealing member 18 which is stretched over the frame 114 as shown in Figure 14.

The frame 114 with the support device 116 and the sealing element 118 is inserted into the opening 2 and fixed with the metal angles 120. The metal angles 120 be on the one hand attached to a profile 124 or 126 and on the other hand, for example, fixed with a dowel, not shown here in the opening 2 on the ceiling 10. Lines 136 and 138 are passed through carrier 116 and sealing member 118 as shown in FIG. 20, with seal member 118 being marked and cut as discussed above. The cords 130 and 132 are displaced according to the diameter of the conduit 136 and 138, respectively. The seal member 118 may be applied and sealed to the leads 136 and 138, respectively, as discussed above. As FIGS. 20 and 21 show, essentially any lines of different numbers and diameters can be pulled through the opening 2 and sealed. The pouring takes place as already explained above.

LIST OF REFERENCE NUMBERS

1

formwork

2

breakthrough

3

building wall

4

Soffit

5

edge

6

Corner connector

7

foam tape

8th

drilling

9

dowel

10

blanket

11

retaining element

12

bent section

13

cloth

14

frame

15

double arrow

16

supporting member

16a

The End

17

protector

18

sealing element

19

arrow

20

arrow

21

Fäustel

22

drilling machine

23

tongs

24

profile

25

arrow

26

profile

27

potting compound

28

cloth

29

Film Breakthrough

30

pen

31

clip

33

Kappmeter

34

adhesive layer

35

articulation point

100

formwork

114

frame

116

carrying device

118

sealing element

120

metal brackets

124

angle section

126

angle section

128

recess

130

line

132

line

136

management

138

management

140

corner bracket

L

length

Claims (17)

Formwork for the casting of a ceiling opening, which is provided for the passage of one or more installation lines (136, 138), characterized by a frame (14, 114) and arranged in the frame opening supporting device (16, 116) and at least one planar sealing element (18, 118) supported by the frame (14, 114) and the support (16, 116). Formwork according to claim 1, characterized in that the size of the frame (14, 114) is adaptable to the dimension of the ceiling breakthrough. Formwork according to claim 2, characterized in that the frame (14, 114) of profiles (24, 26, 124, 126) is formed, which are adjustable relative to each other. Shuttering according to one of claims 1 to 3, characterized in that the flat sealing element (18, 118) on the frame (14, 114) is stretched. Formwork according to claim 4, characterized in that the flat sealing element (18, 118) between the frame (14, 114) and the aperture (2) is clamped. Formwork according to one of claims 1 to 5, characterized in that the carrying device (16, 116) spans the frame opening. Shuttering according to one of claims 1 to 6, characterized in that the carrying device (16, 116) by at least one elongated element (16) is formed, which is supported on the frame (14, 114). Shuttering according to claim 7, characterized in that the elongated element (16, 130, 132) runs in the form of a loop in the frame opening. Shuttering according to claim 7 or 8, characterized in that the elongated element (16) is a spring steel strip. Formwork according to one of claims 1 to 9, characterized in that the sealing element (18, 11) is a film. Formwork according to one of claims 7 to 10, characterized in that the elongate element (16, 130, 132) forms a support device with a lattice-shaped structure. Shuttering according to one of claims 3 to 11, characterized in that the profiles (24, 26, 124, 126) have a U-shaped or L-shaped cross-section. Method for producing a formwork according to claim 1, characterized in that the frame (14, 114) is produced from profiles (24, 26, 124, 126) and that the planar sealing element (18, 118) is attached to the frame (14, 114) fixed and supported from below with a support device (16, 116) and that for performing the installation lines (136, 138) in the sealing element (18, 118) openings (29, 29 ') are incorporated. A method according to claim 13, characterized in that the support device (16, 116) is formed from at least one elongated element (16, 130, 132). Kit for the production of a formwork according to claim 1, characterized in that it has profiles (24, 26, 124, 126), a planar sealing element (18, 118) and means (16, 130, 132) for producing a supporting device or supporting device for the sealing element (18, 118). Construction set according to claim 15, characterized in that it comprises at least one corner connector (6) for the flexible and length-compensating connection of two profiles (24, 24 ', 26). Construction kit according to claim 15 or 16, characterized in that it comprises an elongate element (16, 130, 132), in particular a flexible band (16), in particular a steel band, for the production of said supporting device.

Images