DE7147209U - Sealing strip for concrete formwork - Google Patents

Description

December 9, I97I C ^ Aktz.t SE 222

Applicant; rix-ma aduöfd SeidSsi, £ ä £ 5uiüsuf &l; ri £, 794

"Sealing strip for concrete formwork"

The innovation concerns a sealing strip for concrete formwork, like this one for sealing formwork elements with one another Can be used so that liquid concrete or water cannot run out of the formwork.

There are already different types of sealing strips for concrete formwork became known, which, however, had the disadvantage that they had to be nailed onto the formwork. this was very time-consuming and also had the disadvantage that when the formwork was dismantled, the strips took a long time had to be removed

The innovation avoids the disadvantages of the previous ones Sealing strips, in which a sealing strip is proposed, which consists of a central part to which primarily on one side Arranged at right angles a wrap-around part is attached and that a lip part is attached on the opposite side is, which once forms a sealing lip against the formwork element on which the bar can be attached and for another a bicirclip against the formwork element to be applied forms.

The advantage of such a diaphragm lip, which is only put on, is that it can be introduced with little effort is and at the same time nööh ice * better since slipping of the sealing strip see B. not being nailed on • takes place, as has so far been the case with the known sealing strips ·

In addition, there is the great advantage that when dismantling the \ Sealing strip is easy to pull off and can still be used. This is particularly the case when using plastics the group of polytetrafluoroethylene or plastics Group of copolymers made from tetrafluoroethylene, hexafluoropropylene or the like · used · You can also proceed like this » that only the outside of the bar is coated with it

Another advantage can exist if, for example, siliconized plastics or only silicone pads are used Find. In this way, the sealing strips can be conveniently attached to the formwork and there is still the C advantage that the concrete does not adhere to the ledge, so that

Trimming work can be omitted entirely

One can also proceed in such a way that the central part is formed too slightly curved in the direction of the formwork element is such that the bar when placed on a flat surface in the unloaded state only at the edge and on the Sealing lip rests on · This has the great advantage that after the bar has been installed, the sealing lips on the formwork accordingly tight fit *

But you can also train the sealing lips so that they are concave on the support surfaces.

In an iron special embodiment, the bar also be designed in such a way that it is designed as a double-T-shaped bar on both sides. In this case it becomes a Connection of building boards are used

There is the possibility that the bar is also designed so that the trimmed on the formwork element The surface of the wrap-around part is inclined at a slight angle to the vertical, in such a way that a pressure lip is formed on the upper edge «

has the gsoBezi advantage that the bar after it is attached to the formwork element firmly embraces it and thus the formwork element can still be moved back and forth during construction without the bar falling off the formwork element.

One can also proceed in such a way that from the edge lines of the

O sealing lips an obtuse angle is included · On this A better contact pressure of the sealing lips is achieved even when the bar is used several times.

The innovation is shown schematically in the accompanying figures

shown. Show it:

Figure i shows a section through a bar according to the invention, in the unloaded state, whereby the bar is not attached to a formwork element «

FIG. 2 shows a bar attached to a formwork element

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Figure 3 also cine embodiment according to .Fig. 2, where acts on the ledge of concrete,

Figure 4- is a section through a formwork element of a frontal formwork in which the front side is sealed,

FIG. 5 shows a view of the embodiment according to FIG. 4 in Direction of view A,

Figure 6 shows the use of the strip on the floor in a binder form,

FIG. 7 the application in the sealing of edge formwork,

Figure fS shows the use of two formwork panels with a dummy joint,

Figure Sr a sealing strip in a special embodiment , -. indicating the different angles on the lips,

Figure 1p application on a large formwork on four sides, Figure 1 * Application on the intermediate floor of a T or U formwork.

In Figo 1 is a sealing strip according to the innovation in section shown, which rests unloaded on a support 68. It can be seen that the central part 1 is concave and touches the support surface 68 · The wrap-around part is on the left-hand side 2 can be seen, the lip part 3 being attached to the other side, which the sealing lip 4 and the Sealing lip 6 carries.

It can also be seen in FIG. 1 that the unloaded sealing strip rests only on the edge 8 and on the edge 9 of the sealing lip.

: In Fig. 2, a sealing strip is shown, which s; uf a

j Formwork element 5 is attached »The formwork element 5 is

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placed with the sealing strip on a base 7. Man recognizes from FIG. 2 the formwork element 5 as the sealing strip encloses, the sealing lip 4 on the formwork element 5 grips and the sealing lip 6 grips the base 7 «

In i'ig * 3, the embodiment according to FIG. 2 is again the same shown that a concrete filling 23 against the formwork element 5 and against the lip part 3 presses.

FIG. 4 shows a special embodiment of the application of the sealing strip, with formwork elements 24 and 25 receiving a concrete filling 26 which is sealed on the front side with a formwork element 27, with sealing strips 29 and 30 being used as already described above.

In FIG. 5, the embodiment according to FIG. 4 is shown again in viewing direction A, the application of the Sealing strips 29 and 30 can be seen particularly.

In Fig. 6 are located between the formwork elements 31 and 32 a concrete filling 33, which is sealed on the ground by a formwork element 34-. The sealing strips 35 and 36 can be seen as they are pushed onto the formwork element 34. The support beams 37 hold the formwork element 34 firmly in its position

In Fig. 7 a further application of the sealing strip is shown, this takes place at an edge formwork using formwork · The plate 38 carries the sealing strip 39 · At 41 is a support frame illustrated · The concrete filling is designate at 69. The formwork panel 38 is supported by a support beam 40

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held in their position

In Fig. Ff! a sealing strip is shown, which is designed as a do ^> elt-T-shaped strip 12, which is inserted between the two shuttering panels 42 and 43. On the sealing strip 12, the wrap-around part 45 and 46 and on the upper part the lip parts 47 and 48 · The concrete filling is shown with 44 ·

In Fig. Ff a sealing strip is shown in which the (wrap-around part 2 carries a surface 13 which is aligned with the formwork element 5 and is inclined at a slight angle 14 to the perpendicular 15.

On the other side of the sealing strip it can be seen how from the sand lines 17 and 18 of the sealing lips 4 and 6 obtuse angle 19 is included, so that a particularly good contact pressure can be achieved.

J ^ The outer sides 20, 21 can also be seen from Fig. Ff

and 22, which with the support surfaces 10 and 11, for example Can wear silicone pads or can be coated with plastics from the group of polytetrafluoroethylene or the like could be.

In FIG. 30 , the use of the sealing lips on supporting formwork can be seen in which formwork elements 50 and 51 support formwork panels 52, 53 and 54 via intermediate layers 60, between which the liquid concrete 59 can be poured. The whole

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The device is held by a support 49 «The formwork panels 52, 53 and 54 are at their edges by sealing strips 55 »56, 57 and 58 sealed against each other. In this way the result is a concrete beam that is chamfered on four sides

In Fig. 10 another example of application of the sealing strip is shown in which the intermediate floor is sealed in a double-T or IJ formwork, and two phases are formed on the lower hands. One can see the support formwork 61 and 62, which is filled with concrete 63, while the lower part is closed by a formwork panel 64, which carries sealing strips 66 and 67. In this way, the round phases 70 and 71 are formed.

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Claims (1)

-ι- Is set 1 x sealing strip for concrete formwork, d _a through in AASS the bar of a central part (1) consists on the one side mainly at right angles arranged a Umgriffteil (2) and that pushes on the opposite side, a lip portion (5), which on the one hand forms a sealing lip (4) against the formwork element (5), onto which the strip | * i can be attached and, on the other hand, forms a sealing lip (6) against the formwork element (7) to be laid 2. Bar according to claim 1, characterized in that the central part (1) in the direction of the formwork element (5) is slightly curved, so that the bar when placed on a flat surface in the unloaded state only at the edge (S) and rests on the Diehtlippenlfcafcte (9). 3 · Bar according to claim 1 and 2, characterized in that the sealing lips (4; 6) on the bearing surfaces (10; 11) concave +. are formed · ' 4 # strip according to claims 1 to 3, characterized in that this formed on both sides as a coupled T-shaped strip (12) is· 5. Bar according to claim 1 to 4, characterized in that the on the formwork element (5) facing surface (13) of the Wrap-around parts «(2) at a slight angle (14) to the vertical (15) is inclined in such a way that a pressure lip (16) is formed on the upper edge. 6 · Bar aaoh claims 1 to 5 »characterized in that 7147201 iu. η - 2 - from the edge lines (17; 18) of the sealing lips (4 ·; 6) a rough Angle (19) is included " 7 · Bar according to claims 1 to 6, characterized in that at least a part of most, primarily the outer sides or bearing surfaces ζ 20; 21; 22; 10; 11), with plastics belonging to the group of Polytetraflouraethylene odfcj. Plastics of the group of copolymers made of tetrafluoroethylene, hexafluoropropylene or the like are coated, or consist of 8. Bar according to Aüspruch 7 »characterized» that silicoalized plastics or · silicone pads on the. Outer sides or support surfaces (20-22; 10; 11) are used. 71472Q9H.S.W