PL196451B1 - Carrier member for grates use in erection of movable structures - Google Patents

Abstract

Exhibition stands are constructed using a lattice beam comprising several parallel hollow metal sections (1, 2, 3) which are held together by lattice structures. The hollow sections are assembled to form a beam with an isosceles triangular cross-section in which the hollow section (1) at the apex is symmetrical and the two other hollow sections (2,3) are mirror-symmetrical to the plane (5Ü running between the sides of equal length of the triangle. At least part of the chambers formed in the hollow sections is provided with a slot (15, 18) open to the outside. Preferably, the hollow sections are cubes with an external circular cross section and having internal walls, which partly run radially, connecting to a central core (8).

Description

REPUBLIC

POLAND

(12) PATENT DESCRIPTION (19) PL (11) 196451 (13) B1 (21) Filing number: 336113 ⁽¹³⁾ (22) ^{Filing date: February 28, 1998 (51) Int.Cl.}

E04B 1/19 (2006.01) (86) Date and number of the international application: E04B 1/58 (2006.01)

28.02.1998, PCT / EP98 / 01143 E04B 1/343 (2006.01) (87) International application publication date and number:

1998-10-15, WO98 / 45552 PCT Gazette No. 41/98

Patent Office of the Republic of Poland

₍₅₄₎ Connection head for lattice carriers ⁽⁵⁴⁾ for fabricating portable structures (30) Priority: 1994-04-10, DE, 19714996.0 (73) The right holder of the patent: OCTANORM-VERTRIEBS-GMBH FϋR BAUELEMENTE, Filderstadt, DE (43) Application was announced: June 5, 2000 BUP 12/00 (72) Inventor (s): Hans Bruder, Aichtal / Aich, DE (45) The grant of the patent was announced: 31.01.2008 WUP 01/08 (74) Representative: Nowakowski Janusz, PATPOL Sp. z o.o.

⁽⁵⁷⁾ 1. Connection head for lattice bearers for the production of portable structures, in particular exhibition and fair stands, consisting of a tubular section with circumferentially spaced axially extending grooves for suspending the crosspiece fastening members, characterized in that the main grooves (50) they are interrupted in the pipe section by annular grooves (30) for the radial insertion of suspension heads (31) of the cross members.

PL 196 451 B1

Description of the invention

The subject of the invention is a connection head for lattice carriers for the production of portable structures, in particular of trade fair and exhibition stands.

Lattice carriers are used in building or machine building for the production of transverse suspensions, for example for the production of stand poles or booms for construction cranes and the like. These carriers are usually made of steel profiles which are welded or riveted to the truss structure and other supports. Such lattice carriers not only because of their weight, but also because their assembly and disassembly is very complicated, are not suitable for the production of portable structures, especially for trade fair and exhibition stands.

Structural systems are known for the production of such exhibition and trade fair stands, in which octagonal stands with longitudinally extending grooves are used, in which crossbars can be installed very simply and quickly, and at the same time very stable, by means of suitable fastening elements (Octanorm der Octanorm system). Betriebs-Vertriebs GmbH fur Baulemente in Filderstadt). This system worked well for a certain weight of the medium. Of course, such systems are not suitable for portable transverse suspensions, quick-build and demountable structures, or for large, slow-bearing roof structures. In these cases, truss systems with connecting knots are used, as described in EP 0 393 090 B1, from which the ends of the bars provided with the beads can be suspended.

Since the use of lattice carriers is also important in the construction of exhibition and fair stands, in order to obtain large spans or as decorative elements, the task of the invention is to shape the connection head for lattice carriers in such a way that it can be used in the existing exhibition and fair construction systems, or until they obtain the appropriate visual effects.

This task is solved in that the main grooves in the tubular section are interrupted by annular grooves for radially inserting the suspension heads transversely.

Preferably, the tubular section is closed on both end sides by an annular flange and is provided with internal grooves which serve as fastening holes for the bolts that secure the annular flange.

According to the invention, a cylindrical male part with an end wall is connected to the lower annular flange.

Preferably, parallel to and radially inside the main grooves are grooves for receiving the usual commercial features.

According to the invention, stop elements are provided in the main grooves for adjusting the height position of the head of the thread hanger bolts or other suspension elements.

The advantage of the invention is a simple, easy assembly of the lattice carriers, also currently available on the market, to the connection head and thus obtaining the possibility of constructing visually effective exhibition or fair stands.

The subject matter of the invention is illustrated in the drawing in which Fig. 1 shows schematically in perspective a lattice carrier with two triangular plates assigned to its end ends, Fig. 2 - a perspective view of a lattice carrier with a triangular plate with a connecting element and a connection head according to the invention, fig. 3 - cross-section through the lattice carrier from fig. 1, with inserted decorative panels and closing strips, fig. 4 - part of the lattice carrier on which the electrical wiring strip with a reflector is placed, fig. 5 - lattice carrier with a reflector with decorative panels arranged on all sides and with integrated lighting means, Fig. 6 - configuration of the lattice carrier as a stand post with correspondingly shaped triangular plates at the end side, Fig. 7 - stand post from Fig. 6 with an attached connection head, according to Fig. 2 and on it with two lattice carriers with the possibility of embedding another Fig. 8 - a structure similar to Fig. 7, in which, instead of the next lattice carrier, a known stand post is used, Fig. 9 - a constructed exhibition stand, Fig. 10 - exhibition stand ceiling in perspective, Fig. 11 - the enlarged part of the view according to Fig. 2, Fig. 12 shows the connection head of Fig. 11 in an exploded state, and Fig. 13 the profile of the connection head of Figs. 11 and 12 on an enlarged scale.

Figures 1 to 3 show a lattice support which is made up of three closed profiles 1, 2 and 3, for example made of aluminum as co-pressed profiles.

PL 196 451 B1

These three closed profiles 1, 2 and 3, hereinafter referred to as profiles, are arranged in parallel to each other and, as shown in the cross-section in Fig. 3, are formed by the lattice structure 4 arranged between them into a lattice support with a cross-section in the form of an isosceles triangle. .

It can be seen from Fig. 3 that both profiles 2 and 3 are identically shaped and placed symmetrically with respect to the plane of symmetry 5 which runs at the center of the two isosceles arms 6 of the triangle formed. At the apex of the triangle, a profile 1 is placed, which is shaped differently than the profiles 2 and 3, whose axes are placed at the point of intersection of the arms 6 with the base line 7 of the triangle formed. The profile 1 has an outer wall with a circular cross-section and a tubular core 8 coaxial to this outer wall, from which four partition walls extend, forming four closed chambers 9, 10, 11 and 12, with two partition walls parallel to the legs extending from partition walls forming two other chambers 13 and 14.

All partitions are arranged symmetrically to the plane of symmetry 5. The chambers 13 and 14 are provided with an outwardly open slot 15, namely one open towards the profiles 2 and 3, the slot 15 of the chamber 13 in the illustrated embodiment being closed by a profile strip 16, and in the slot 15 of the chamber 14 an edge of the decorative plate 17. The chamber 12 has a slot 18 open to the outside, the longitudinal axis of which lies in the plane of symmetry 5.

The profiles 2 and 3 also have a core 8 in the form of a pipe, from which five partitions extend, which form five closed chambers 10, 20, 21, 22 and 23. The chambers 20, 21 and 22 are provided with outwardly open slots 15, the decorative strip 16 or the edge of the decorative panel 17. The slots 15 in the chambers 21 face each other in the slot 15 of the chamber 23, analogous to the design of the chambers 13 and 14. They can either be closed with profile strips 16, as indicated in the left half of Fig. 3, or with a decorative panel 17 similar to that shown on the right in Fig. 3. The gap 15 in the chambers 20 is open to the outside and runs parallel to the plane. symmetry 5.

FIG. 1 shows that the end ends of the three profiles 1 to 3 can be covered by triangular plates 24 which, for example, by using screws not shown in more detail, are fastened to the core 8 of the profiles 1, 2, 3.

The plates 24 thus close the end faces of the lattice support, which, as can be seen in particular from FIG. 5, is formed by the decorative plates 17 that form the sides of the triangle into a structural element which is closed on all sides, which, in particular in the construction of exhibition and fair stands, is a special attractively visual element.

Figure 2 shows that a connecting element 25 is screwed to the triangular plates 24, having two threaded pins 27, formed in the respective rib stiffeners 26. The free ends of the threaded pins 27 are here provided with a larger diameter hanger head 31 for insertion into longitudinal grooves. 28 in the tubular connection head 29. As can be seen, the octagonal cross-section of the connection head 29 is interrupted by two circumferential ring grooves 30 through which the suspension heads 31 are inserted and axially seated in the longitudinal grooves 28. Two wing nuts 32 screwed on the threaded pins 27 serve for fixing the connecting element 25 with the plate 24 and the lattice support connected thereto to the connection head 29.

4 and 5 show two lattice bearers in the embodiment according to fig. 1 with triangular plates 24 attached from the front, in the embodiment according to fig. 4 by means of fastening elements, not shown in more detail, in one of the chambers 13 or 14 (fig. 3). the wiring profile 33 is suspended, which was used for the sliding placement of the reflector 34.

FIG. 5, on the other hand, shows the lattice support covered from the outside by decorative plates 17 so that it can be used as a structural element in which the lower decorative plate 17 is provided with light sources 35.

Figures 6 to 8 relate to the type of fastening shown in Fig. 2.

From Fig. 6 it can be seen that the triangular plates 24 have a central opening 37, and Fig. 7 shows a connection head 29 on which two transverse lattice bearers, with the profile 1, hereinafter called cross members, are arranged through a connecting element 25. On the other hand, the vertical lattice carrier, made of the profiles 1, 2, 3, 4, is connected to the connection head 29 by its lower plug-in pin 36, shown in Fig. 2, inserted into the receiving opening 37 in the plate 24, shown in Fig. 6. The lattice supports thus form the corner elements of the exhibition stand. Of course, it is still possible to attach further cross members to the connection head 29 and the second vertical lattice carrier shown in FIG. 7 with the marked profiles 1, 2, 3.

PL 196 451 B1

For this purpose, as also shown in FIG. 2, the connection head 29 is provided on its side facing away from the plug pin 36 with an annular flange 39 which has a central opening 38 into which the plug pin 40 of the lattice carrier with marked profiles is inserted and fastened. 1, 2, 3.

As FIG. 8 shows, it is also possible to associate with the connection head 29 the said socket face 40 on which the known profile post 41 is attached, with an octagonal cross-section and having longitudinal grooves, such as longitudinal grooves 28 in the connection head 29.

In this case, it is possible to connect to the connection head one of the known construction systems for the construction of exhibition and exhibition stands as produced by the Applicant.

Of course, it is also possible, as has already been mentioned in the discussion of Fig. 3, to use the slot 18 in the cavity 12 of the profile 1 and the slot 15 in the two chambers of the profiles 2 and 3 to attach other standard commercial components.

Figures 9 and 10 show two examples of the use of said lattice bearers for parts of a display construction system that are already on the market. In the exhibition stand according to FIG. 9, a series of lattice carriers are used, provided with a marker 42. Three such lattice carriers 42 are placed on the known posts 44, which are provided at the top with a connection head 29, in an exemplary embodiment additionally with a casing. Suspended on the connection head 29 is the connecting element 25 and through it the triangular plate 24 of the lattice carrier 42. The lattice carriers 42 and the posts 44 together with the commercial stand poles 41 and the corresponding wall panels 45 form the exhibition stand.

FIG. 10 shows that by means of three lattice carriers 42 it is possible to construct a vault-like ceiling structure if the corresponding and already commercially available arches 43 are inserted into the open gaps 15 of the chambers 20 (FIG. 3) of the profiles 3 or 2.

FIG. 11 shows a connection head 29 corresponding to FIG. 2, which, as will be further explained in FIGS. 12 and 13, is made of a tubular profile which has axially extending slots 50 (or longitudinal grooves 28 according to FIG. 2) on its outer periphery. formed in the chambers 51 (Fig. 13). These chambers 51 are adapted to the shape of the suspension head 31 of the threaded bolt 27. Of course, these chambers 51 can also receive, instead of connecting elements 25 of the triangular plates 24, suspension heads 31 of other lattice carriers, for example lattice carriers having threaded pins 27 aligned with two profile pipes that run in parallel with each other and are connected to each other by a flat grating. In this way, it is possible to connect flat lattice bearers.

FIG. 11 and in particular FIG. 12 clearly show that the tubular section 29a of the connection head 29 is interrupted by two annular grooves 30 extending at a distance from each other, the width of which is adapted to the insertion head 31 of the threaded bolt 27 in a direction radial to the axis of the tubular section. 29a of the connection head 29 and then its axial displacement downwards into the chamber 51. The tubular section 29a of the connection head 29 is covered at the top and bottom by an annular flange 39 which is fastened by bolts 53. Bolts 53 (Fig. 12) pass through the recesses 54 in the upper ring flange 39 and are screwed into the inner grooves 55. In the same manner, the lower ring flange 39 can also be attached to which a cylindrically hollow plug-in part 36 with a wall end can be screwed. face 56 having corresponding recesses 54 'for the bolts 53.

As can be seen in particular from Fig. 13, parallel to the slots 50, hereinafter the main grooves, and radially inside them, other grooves 57 are provided on the inside of the chambers 51, which serve to insert the usual commercial fasteners of known construction systems through which ordinary, commercial cross members can be placed on the connection head 29.

The connection head 29 thus becomes a universal connection head.

Figures 11 and 12 also show that in the main grooves 50 and in the chambers 51, abutment elements 58 are seated, also through the annular grooves 30, which abut the lower ring flange 39 and thus define the height of the threaded pins 27, i.e. their position. suspension heads 31 in the connection head 29. By replacing the stop elements 58, it is possible in a simple manner to vary the height of the position of, for example, the lattice support according to FIG. 2 on the connection head 29.

PL 196 451 B1

Patent claims

Claims (6)

A connection head for lattice bearers for the manufacture of portable structures, in particular exhibition and fair stands, consisting of a tubular section with circumferentially spaced axially extending grooves for suspending the cross member fastening members, characterized in that the main grooves (50) in the tubular section are interrupted by annular grooves (30) for the radial insertion of the hanger heads (31) of the crosspieces. 2. Head according to claim Device according to claim 1, characterized in that the tubular section (29a) is closed at both end sides by an annular collar (39). 3. Head according to claim The method of claim 2, characterized in that the tubular section (29a) is provided with internal grooves (55) which serve as fastening holes for the bolts (53) securing the ring flange (39). 4. The head according to claim The device of claim 2, characterized in that a cylindrical male part (36) with a head wall (56) is attached to the lower annular flange (39). 5. Head according to claim The apparatus of claim 1, characterized in that provided parallel to the main grooves (50) and radially inward there are grooves (57) for receiving common commercial items. 6. The head according to claim A device according to claim 5, characterized in that stop means (58) are provided in the main grooves (50) for adjusting the height position of the hanger heads (31) of the threaded bolts (27) or other suspension elements.