DE7314449U - DEVICE FOR PRODUCING RECESSES IN CAST CONCRETE - Google Patents

Description

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Dipl. Log. Peter Otte Patent attorney

_{7 STUTTGART eo (} ve.h.ngen) WaldburgstraOe 48 Telephone (0711) 734627

1o68 / ot / R

April 12, 1975

Mr. Karl

R u c k h

Waidenbuch
New way 32

Device for making recesses in cast concrete

The invention relates to an apparatus for manufacturing of recesses in cast or stamped concrete or Like., Preferably from recesses to the following concealed laying of pipes, lines and the like.

1o68 / ot / R
April 12, 1973

In the 'production of walls or wall parts from cast or Stamped concrete often has to have recesses running in any direction, preferably from top to bottom be provided, which do not occupy the full depth of the concrete, but only up to a finite depth Clearance into these so that the pipelines such as water or Heating cables and the like can be laid and plastered over in the walls. Since, for reasons of cost alone, It is impossible and very troublesome to make such recesses for pipes and the like after the concrete has set from this then chisel out, it is known to design the formwork receiving the cast concrete so that in the concrete the necessary cavities are created in the desired places by itself. Now it is, however in the case of not very deep, but longer recesses, this is laborious and requires a considerable amount Carpentry, a formwork this way produce, whereby wood is usually taken as the starting material, which in a corresponding manner in the form the recesses is nailed.

To facilitate this work and to save costs, the present invention is based on the object a device for making such recesses in To create cast or stamped concrete that is simple and easy to use

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Special also created by less skilled workers and without any difficulties after the hardening of the Concrete can be removed again.

To solve this problem, the invention is based on the device mentioned at the beginning and consists according to the invention in that two outer U-shaped longitudinal profiles are provided that form many me nts, whose outer legs can be connected to the inside of the formwork and that any number between the outer longitudinal profiles via the associated legs with one another and with the Outer longitudinal profiles connectable inner U-shaped longitudinal profiles are provided.

Due to the invention, it is therefore no longer necessary in connection with the creation of one side of the formwork corresponding to this, usually made of wood To attach arrangements, but only need the expedient νorgefertigteη longitudinal profiles be attached to the inside of a formwork part, depending on the space required for laying the lines, even larger dimensions without difficulty and without additional assembly work can be created.

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Further embodiments of the invention are the subject matter of the subclaims and laid down in these.

The structure and mode of operation are illustrated below the accompanying drawing explained in more detail.

• The drawing represents a cross section through the invention Device, which is composed of several individual elements, the poured concrete and the two outer formwork parts.

In the drawing, the two outer formwork parts are denoted by 1 and 2, they close one between them A cavity which is filled with the cast concrete 3. So that the cast concrete cannot flow to the places at which it is to form a recess is the one according to the invention Device provided and attached to the inside 4 of one formwork 2 in a corresponding manner.

This attachment takes place of course before Bringing the concrete 3 and attaching the other side of the formwork simply in such a way that on the inside of the already built formwork part 2, the device is applied. This consists of two

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April 12, 1975 - 5 -

outer, mutually complementary longitudinal profiles 5 and 5a, each formed from a base area 6 and two side legs 7 and 8 or 8a.

In the illustrated exemplary embodiment, the drawing shows a horizontal cut, i.e. the erofilaments of the device • run vertically, although of course any directions and inclinations can also be adhered to. The erofiles extend from above down over the entire height of the wall and preferably protrude over the upper edge of the filling at the top of the cast concrete addition, so that in the cavity formed by the Erofile and the associated formwork wall 2 Concrete cannot flow in.

In the embodiment, the outer legs 7 are / inkel mounted in an amount greater than SO ° V end to the base 6, that is, the composite apparatus in the direction of the cast concrete inside trapezoidal tapered. However, this angle is not critical and can also be 90 °, a larger angle merely making it easier to pull the device out of the solidified concrete.

The attachment of the outer legs 7 of the outer longitudinal

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profile · 5 and 5a takes place via webs 9 attached to the leg 7, which run parallel to the associated formwork wall 2. The attachment may, for example, by _a N gelung, or in any other suitable manner, w.ozu recesses may be provided in the webs 9; the inner legs 8 and 8a of the outer longitudinal profiles are set perpendicular to the base 6 and return at right angles to the formwork wall 2, so that a secure support against the pressure of the poured concrete is given before solidification. Of course, the overall material thickness of the Erofile is made accordingly, the sub-elements 6, 7, 8 and 9 of the longitudinal profiles are expediently connected in one piece with one another, the entire longitudinal profile can be made from a piece of deep-drawn sheet steel or any other suitable material of any kind, possibly also made of plastic , Wood or the like. Exist.

It can turn out that the exclusively formed by the two outer longitudinal profiles 5 and. 5a formed recess sufficient to insert the desired number of tubes, so that on the inner longitudinal profiles 1oa, 1ob and 1oc can be completely dispensed with and the external longitudinal profiles 5 and 5a can be placed against one another with their inner legs 8 and 8a, respectively. In any case, it is appropriate /

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April 12, 1975 - 7 -

the inner legs each, as indicated at 11, to connect to one another, either through carried out Screw bolts or by conventional clamping devices often used in the construction of buildings, in which just a wedge driven into a corresponding recess under the impact of a hammer must be to such an absolutely form-fitting connection to manufacture.

The inner longitudinal profiles 1oa, 1ob and 1oc each consist of a base area 12 and two lateral legs 13, and one of these legs can also be the outer longitudinal profile 5 ^ur id ^ a. as well as the inner longitudinal profile are shortened somewhat behind the fastening area to save material, since the remaining leg of the respective other profile offers sufficient support on the associated formwork wall 2 and, as already mentioned, there is a correspondingly secured connection between the two legs »Such a possibility is through the leg 8a of the one outer longitudinal profile 5 indicated.

The constantly repeating support of the device according to the invention via the legs results in a secure one Fastening and a stability that is also strong pressure

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1o68 / ot / R April 12, 1973

Withstands the effects of the poured concrete, yes, anyway the pressure of the concrete spreading in the lateral direction decreasing from bottom to top.

It can be seen that with the aid of the invention The device succeeds by preferably simple nailing by means of the webs 9 to the associated formwork wall 2 quickly and economically to provide recesses in concrete walls, through which lines or later other elements are carried out. Of course, it goes without saying that in the usual way on the Concrete trimmed free areas of both formwork and the longitudinal profiles in a corresponding manner, such as indicated by 14 covered or coated with fat are.

Claims (1)

1. Device for the production of recesses in cast or Stamped concrete and the like, preferably from recess. conditions for the subsequent concealing laying of pipes, lines and the like, characterized in that two outer elements forming and U-shaped Longitudinal profiles (5, 5a) are provided, the outer limbs (7) of which can be connected to the inside of the formwork (2) are, and diaß between the outer longitudinal profiles (5> 5a) any number over the assigned Legs (8, 8a; 13) with each other and with the Outer longitudinal profiles (5 »5a) connectable inner U-shaped. Longitudinal profiles (1oa, 1ob, 1oc) are provided./ 2. Device according to claim 1, characterized in that that the outer legs (7) of the outer longitudinal profiles (5> 5a) at an angle greater than 90 ° run obliquely outwards and have attached, preferably integrally connected webs (9), over those who. Outer longitudinal profiles (5, 5a) with the associated Formwork wall (2) are connected. / II »
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I 1 (1 I t 1068 / 0t / R April 12, 1973 - 1o - 5, device according to claim 1 or 2, characterized in that that the outer longitudinal profiles are complementary to one another are trained and in their longitudinal of expansion over the filling level in the formwork poured cast concrete (3) extend and with the associated Formwork wall (2) form a cavity * 4. Device according to one of claims 1 to 3> characterized in that the inner legs (8, 8a or 13) the outer longitudinal profiles (5, 5a) and the inner longitudinal profiles (ioa, 1ob, 1oc) are designed so that they are located on the inside of the associated formwork wall (2) supports. 5. Device according to one of claims 1 to 4, characterized characterized in that the adjacent inner legs (8a, 8; 13) of the outer and inner longitudinal profiles (5, 5a; 1oa, 1ob, 1oc) via fastening elements are connected to each other / 6 «Device according to one of claims 1 to 5, characterized characterized in that the fastening elements are screw bolts or wedges that can be knocked into the recesses of push-through elements are provided. It · · * I f I ■ · · 1068 / 0t / R April 12, 1973 - 11 - 7. Device according to one or more of claims 1 to 6, characterized in that in each case only one of the interconnected and different longitudinal profiles (5, 1oa) up to the formwork wall (2) is , . continuously formed and the other (8a) ends in the area of the fastening point./