DE1944073U - FASTENING DEVICE FOR SHELLING FOR THE PRODUCTION OF RIBBED CONCRETE Ceilings. - Google Patents

Description

Usage requirement registration:

Gerhard BEEHMER, 347 Andernach , Nettestr. 34

Fastening means for shell bodies for manufacture of ribbed concrete ceilings.

To save concrete and reduce the dead weight of the concrete ceilings are placed on the lower formwork or on the ceiling beams that create concrete-free spaces on the underside of the ceiling when pouring the concrete ceiling. In some cases, formwork bodies are also used, which after concreting as permanent formwork in the ceiling concrete remain and at the same time insulate against heat, cold and sound. These shell bodies are mostly Manufactured in lengths of 2, oo to 2.6o m. They either have to be on the slab formwork or on top laid on the ceiling beams and fixed on them in such a way that they do not move when concreting can slip. The latter is important because otherwise the concrete slurry can escape or the -. static strength of the ceiling is impaired.

So far, for the definition of the switching

body uses a wide variety of fasteners, the installation of which requires a considerable amount of work and time and the costs as well the duration of the production is increased significantly.

The innovation is that as a fastening means for the formwork on the ceiling formwork Plastic strips are used to which in exact spacings holding tongues for the shell body are formed, in which the shell body after laying and attaching the plastic strips inserted will. The plastic strips are made as an endless belt for laying on the ceiling formwork which the retaining tongues are molded at the required intervals. The plastic strips are on cut to length and nailed to the formwork at appropriate intervals (two each on a formwork body), the first tongue of each band being aligned with the string. The same distances result then by itself as the plastic strip acts like a tape measure with the molded tongues.

For laying on ceiling beams or ceiling lattice beams the strips are shaped to encompass the support in a U-shape with one end of the TMPeiles is extended and carries a retaining lug with which the plastic strip on the concrete beam the lattice girder or the like. is held.

The suitable for holding the formwork

Shaped tongues are each of different lengths, with the longer tongue slightly against the short tongue is inclined. When inserting the shell bodies are first pressed against the longer tongues and then pressed into the slots between the long and short tongues. As a result, the longer tongues lie well against the wall of the shell body. Also the insertion of the shell body is greatly facilitated by putting it against the longer tongues and therefore only takes a little time.

-The innovation is shown in the drawings in two exemplary embodiments. It shows: . . "

Fig. 1 shows a section through a ceiling formwork with a plastic strip and two inserted shell bodies,

Fig. 2 shows a section through Fig. 1 accordingly the line II-II,

3 shows a section through two lattice girders

with attached plastic strips and two inserted shell bodies and _;

Fig. M- a section through Fig. 3 according to the line IV-IV.

The plastic / strip 2 applied or nailed on. Short and long tongues 3 and 4 are formed on the plastic strip, of which the long tongues 4 against the short ones Tongues 3 are slightly inclined. When inserted, the shell bodies 5 are initially placed on the short tongues 3

put on, then pressed against the long tongues 4 and then into the slots 5 'between short and long tongues 3 and 4, in which they are depressed are held immovably.

In Fig. 3 and 4 the "attachment of the Sehalkbody-5 by means of plastic strips 6 on the concrete beam 7 of lattice girders 8 is shown" The plastic strip 6 is U-shaped and grips with the short leg 9 and the elongated leg 10 around the side surfaces of the Concrete beam 7 »The extended leg 10 carries a retaining lug 11 at the end, which reliably prevents the U-shaped strip 6 from lifting off the concrete beam 7. On the web of the plastic strip 6, short and long tongues 12 and IJ are also formed, with the long "Tongues 13 are slightly inclined towards the short tongues. When inserting the shell body 5, first one of the longer tongues 13 is bent back and then the shell body 5 is pressed against the other longer tongue 13 and then the shell body 3 is pushed into the seat heald 14 between the tongues 12 and 13

Safety claims:

Claims (6)

- P.A.183362-6A66 -5 Protection claims: 1. Fastening means for formwork for the production of ribbed concrete ceilings on ceiling formwork or ceiling and ceiling lattice girders, characterized in that on a plastic strip (2,6) in pairs Tongues (3, 4, 12, 13) are integrally formed, in the interstices (5 ', 14) of which the shell bodies (5) can be pushed in and held immovably therein. 2 · Fastening means according to claim 1, characterized in that one of the attached in pairs Tongues (4.13) is longer. 3. Fastening means according to claim 1 and 2, characterized in that the longer tongues (4, 13) are slightly inclined towards the shorter tongues (3,12). 4. Fastening means according to claim 1 to 3, characterized in that the plastic strip (2) is designed as an endless belt for laying on slab formwork (1) « 5 »Fastening means according to claim 1 to 3, characterized in that the plastic strip (6) for the attachment of the shell body (5) on ceiling and ceiling lattice girders (8) is shaped such that it is U-shaped with its angled approaches (9,10) Concrete beam (7) of the lattice girder (8) includes and that the one angled approach (10) on the Inde a nasal ste (11) carries, which comprises the underside of the concrete beam (8) and the plastic strip (6) on the concrete beam (7). 6. Fastening means according to claim 1 to 5, characterized in that this also consists of others Materials, e.g. appropriately folded metal strip or the like can consist.