WO1991019063A1

WO1991019063A1 - False floor support for equipment rooms, in particular for computer rooms

Info

Publication number: WO1991019063A1
Application number: PCT/FR1991/000435
Authority: WO
Inventors: Michel Bouche
Original assignee: Michel Bouche
Priority date: 1990-05-31
Filing date: 1991-05-31
Publication date: 1991-12-12
Also published as: FR2662728B1; FR2662728A1; AU7966391A

Abstract

The present invention relates to building fittings arrangements. The subject matter is a device for supporting false floors, in particular, computer room floors, of the kind consisting of a column of an adjustable height itself formed by a sole piece, a screw strut and head plate for supporting sections arranged on a square mesh network and on which the flooring rests. According to the invention, for each node, means for positioning at least two sections (1, 1') in relation to each other consist of at least one so-called key removable part (2, 2') for close-fitting insertion into holes (3) formed in the ends of at least said two sections, each key (2, 2') comprising a central element (6, 6')and two lateral elements (7, 7'), connected between each other on their upper part (8); a central through slot (9) is formed for one of the keys, known as female (2), on its upper edge and for the other, known as male (2'), on its lower edge.

Description

SUBSTRATE SUPPORT FOR TECHNICAL ROOMS, ESPECIALLY

IT ROOMS

The present invention is in the field of building finishing arrangements and it relates to elements intended for the construction of a structure carrying "false floors", also called technical floors, but only for computer rooms, the ladita structure being essentially consisting of support pillars and beams.

Support pillars are known in the form of screw jacks, the head of which supports beams, generally in the form of profiles, thus constituting a square mesh network intended to carry the technical floor slabs, thus providing space for the passage of cables, pipes, etc ... The pillars generally consist of a leg secured to a foot in their lower part, and secured to a head or plate in their upper part. The positioning of the profiles with respect to the ground and between them is carried out by means of pins arranged on said head, and penetrating into perforations made in the ends of the profiles. A description of such pillars can be found in, in particular, the publications GB-933016 (LISKEY), FR-2522045 (GERLAND); FR-2580696 (DONN), FR-2624495 (MOUTH).

A drawback of some of these devices lies in the difficulty of assembling the beams on the plates, in particular their positioning and their fixing thereon.

The object of the present invention is to provide a device for positioning and quick fixing of the beams on the plates. supports, making it possible to reduce the cost both during the construction and the implementation of said device, while ensuring very high precision of the dimensions of the meshes of the network.

According to the present invention, a device fulfilling the aforementioned aim, of the type of device consisting of an adjustable height pillar itself formed by a sole, a screw leg and a platinum head intended to support beams arranged in a square mesh network, on which slabs rest, the said plates forming nodes of said network and comprising means for wedging the profiles, and means for positioning the slabs, is characterized in its generality in that the said means for wedging the beams are lateral wedging corridors at the end of the beams, corridors of the same width as that of the beams, and in that the said means for positioning the slabs above the beams are formed by means of fixing and positioning of the beams in the corridors.

In addition, for each node, means for positioning at least two beams with respect to each other, are constituted by at least one removable part, called a key, intended to be inserted in an adjusted fashion in the openings in the vicinity of the ends of each of said two beams at least.

Advantageously, the corridors result from a cruciform stamping of a steel plate.

According to a first embodiment of the invention, said two beams at least being in the extension of one another and being connected by the same flat key, a second key, interpenetrating with the first, assembles the two other beams of the node and position them relative to the first two, where it follows that, the beams being wedged laterally in the wedging corridors, their position in the plane, between them and relative to the plate, is strictly determined .

In a preferred embodiment, each key comprises a central element and two lateral elements interconnected in their upper part; a through central slot is, for one of the so-called female keys, at its upper edge, and for the other, said male, at its lower edge; the width of the said central element of the keys must be substantially equal to the width of the profiles, and the central element is provided with inclined faces on each of its external sides, opposite the lateral elements, themselves provided with inclined faces on each of their internal sides, opposite screw of the central element; it follows from this arrangement on the one hand that under the effect of a pressure operated on the upper edge of the key, the profiles connected by it in the extension of one another are automatically distant from a distance equal to their width, regardless of the position in which they were wedged in the head lanes, this position must be fairly close to that of the final assembly, and secondly that the profiles thus connected two by two , are then connected four by four by the interpenetration of the so-called male key in the so-called female key, this interpenetration determining their final mounting position.

Advantageously, the upper parts of the keys, connecting the central and lateral elements, have a height substantially equal to the thickness of said slabs, so that the keys serve as a positioning stop for the latter.

According to an embodiment in which the profiles have a U-shaped section with folded edges, the plate is provided with through-holes on each of the ends of the edges of its corridors, said light having a width equal to that of the gap between the folded edges of the profiles.

Locking means secure the profiles to the plate. These blocking means consist of a flat piece called Tee wrench, composed of two parallelepiped elements, one lower and the other upper whose edges which will be in contact, are slightly sloping and connected by a bridge. central of a length equal to the cumulative thicknesses of the head and of a profile, and of a width equivalent to that of the lights made in the head; whence it results that, the said central bridge of the tightening key, introduced into the slide formed by the folded edges of the U-sections on the one hand, the two upper and lower elements being respectively introduced one inside the profile, l 'other under the head corridor, the position of the profiles relative to the ground plane is strictly determined.

According to a second embodiment, the plate is provided with oblong perforations in the vicinity of the end of the edges of the corridors.

The flat keys have, according to this embodiment, two fingers in the extension of said side elements, of a length substantially equivalent to the height of the profiles and ending in a snap lug; where it follows that the lug, having penetrated into the various oblong perforations, hooks the lower surface of the head during the installation of the flat keys, strictly determining the positioning of the profiles relative to the plate.

In the embodiments which have just been described, the means for positioning the sections with respect to one another and with respect to the plate, are constituted by two flat keys, with two lateral elements, which interpenetrate; it is however conceivable, according to a second embodiment of the invention, that these two keys can be joined from the start in a one-piece key formed in one piece with four side elements; advantageously this part will be obtained by cutting from a plate, then by folding. A one-piece key could also be produced by welding two flat keys, but less economically. Such a monobloc key will have a functional conformation corresponding to one or the other of the types of bipartite keys described above; however, we can take advantage of the existence of a central part raising the functional elements (lateral elements with inclined sides, fingers with lugs) to give it an additional centering function and a function of positioning and assembling the profiles and the abutment; these functions will result from the presence of a central hole allowing the passage of an upper end protruding from the screw leg, end on which a nut will be screwed by inserting the key.

The present invention will be better understood and details will be apparent from the description which will be given of two preferred embodiments, in relation to the figures of the appended plates, in which:

FIG. 1 is a developed perspective elevation of the device in a first embodiment,

FIG. 2 is a front view of a tightening key for the device of the previous figure, FIG. 3 is a developed perspective elevation of the device in a second embodiment,

FIG. 4 is a schematic elevation of the device in its second embodiment, the assembly having been carried out,

FIG. 5 illustrates the installation of a one-piece key of a first type,

FIG. 6 illustrates in plan the cutting of the key of FIG. 5,

fig.7 illustrates the installation of a monobloc key of a second type, and

fig. 8 illustrates in plan the cutting of the key of fig.7.

In FIG. 1, profiles 1 and l 'are introduced approximately in their final mounting position in wedging corridors 4 and 4' of a head 5 of a support for raised floors. This support consists of a screw leg 27, integral with a foot 28 in its lower part and said head 5 in its upper part, the edges of which have been stamped in order to form the said wedging corridors 4 and 4 '. Two flat positioning keys, 2 and 2 ', one male 2' and the other female 2, split at 9 in their central part come to interpenetrate in order to link four profiles 1, 1 ', 1 ", 1" linked in pairs and end to end by the lateral elements 7 and 7 'of said flat keys 2 and 2' penetrating inside perforations 3 made in the ends of said profiles 1 and 1 '; it will be noted and this is clearly visible in FIG. 4, that the upper parts 8 of the keys 2, 2 ′ protrude above the profiles, thus providing a means of wedging and centering the slabs; strips of conductive rubber 26, matching the upper part of the profiles 1 and 1 ′ are interposed between these and the flat keys 2 and 2 ′ for positioning penetrating into perforations 24 formed in the ends of said rubber bands 26, according to the same axis than those practiced in the profiles.

The positioning of the profiles in their final mounting position is done by pressure or percussion on the flat keys 2 and 2 ', due to the characteristic shape of these.

Tee wrench 17 are slid into the groove 20 formed by the folded edges of the profiles on the one hand, and in a through-hole 15 made in the ends of the wedging corridors 4 and 4 ', in order to block said profiles 1 and 1 '.

In FIG. 3, the assembly and the various elements constituting the device of the present invention are similar to that described in FIG. 1. The difference between the two devices described lies in the means for clamping the profiles on the head of the support.

The clamping means consist of flat positioning keys 2 and 2 ', the lateral elements 7 and 7' of which are extended by fingers 22 and 22 ′ ending with a lug 23 which hooks the underside of said head 5. The fingers 22 and 22 ′ penetrate at first into the slots 3 made in the profiles and into the slots 24 of the rubber bands, and in a second step in oblong perforations 21 and 21 'made in the head of the support.

Tightening is done automatically under the effect of the pressure exerted on the flat keys 2 and 2 'for positioning, thanks to the elastic bending of the fingers 22, 22' when the pins 23 penetrate into the perforations 21, 21 '; fig. 4 illustrates the catch of the lugs below the plate 5.

We also note in fig.3 a dotted line 40 which shows a cutout intended, in certain cases of application to allow the key 2 'to overlap a beam crossing the plate in the absence of the second key 2; such an application case can be encountered in the case of a support structure called H.

In fig. 5 a one-piece key 50 consists of a central part 51 connecting four lateral elements 51 to 55 coplanar two by two and perpendicular to the other two and to the central part; the latter comprises a central circular hole 56 intended for the passage of the projecting end of 57 of the threaded leg; the key 50 is of the key type, in two parts 2,2 and 2 'of fig.1. A nut 58 allows the key 50 to be inserted and fixed on the end 57.

We also notice in fig. 5 a seal 59 of an elastic, slightly compressible material, having a cross shape; this seal can replace in certain application cases the strips 26 of electroconductive rubber described above.

FIG. 6 illustrates, for the purpose of completing the description, the cutout 62 which, after folding around the lines 63, will give the key 50 of FIG. 5. In FIG. 7, a one-piece key 60 has a constitution similar to that of FIG. 5 and it is of the type of key, in two parts 2.2 ′, of FIG. 3, that is to say of the type of key. with fingers 22 and lugs 23. It differs from the key 50, however, by the absence of a central hole and by the upper parts 68 which are closer together, so that they can be struck together when the key is put in place by means of a mallet 69. It is also noted that the parts 68 of the key 60 are overflowing 70 relative to the slots 3 of the profiles 1 so as to trap the strip 26 (or a joint such as 59 in FIG. 5).

Thus it emerges clearly from the whole of the above description, that the invention comprises two important aspects: a first aspect consists in fixing the beams to the plates by means of keys, bipartite or monobloc, which are plugged into the beams and alternatively, also in the stage; a second aspect consists of the shape in corridors of the plate, or head, of the support pillar.

Fig.8 illustrates the flat cutout 70 of the key 60 with fold lines 71.

Although preferred embodiments have been described and shown, it should be understood that the scope of the present invention is not limited to these forms, but that it extends to any device comprising the stated characteristics taken separately or combined with one another in a described manner or in some other way.

Claims

1.- Support device for technical floors, in particular computer room floors, of the type of device consisting of an adjustable height pillar itself formed by a sole, a screw leg and a plate intended for supporting beams arranged in a network with square meshes and on which slabs rest, said plates forming nodes of said network and comprising means for wedging beams laterally, and means for positioning slabs, characterized:

in that said beam wedging means are corridors (4,4 ') for lateral wedging of the end of the beams, corridors of the same width as that of the beams (1,1'), and

in that said means for positioning the slabs above the beams are formed by means (2,2 ′) for fixing and positioning the beams in the corridors;

2.- Device according to claim 1, characterized:

in that, for each node, means for positioning at least two beams (1, 1 ') relative to one another, are constituted by at least one removable part called a key (2) intended to be inserted in a fitting manner in the openings (3) made in the vicinity of the ends of each of said two beams at least;

3.- Device according to claim 2, characterized:

in that the said two beams at least being in the extension of one another and connected by the same flat key, a second key

(2 ') interpenetrating with the first, assemble the two other beams (1 ", 1 '") of the node and position them relative to the first two,

where it follows that, the beams being wedged laterally in the chocks (4, 4 '), their position in the plane, between them and relative to the plate (5), is strictly determined;

4.- Device according to claim 3, characterized:

in that each key (2, 2 ') comprises a central element (6, 6') and two lateral elements (7, 7 '), interconnected in their upper part (8), and

in that a central slot (9) opening out is provided for one of the keys, called female, (2) at its upper edge, and for the other, called male, (2 ') at its lower edge;

5.- Device according to claim 4, characterized:

in that the width (10) of said central element of the keys is substantially equal to the width (11) of the beams,

in that said central element of the keys (6) is provided with inclined faces (12, 12 ') on each of its outer sides facing the side elements (7, 7'), and

in that the said lateral elements of the keys are provided with inclined faces (13, 13 ′) on each of their lower side,

whence it results on the one hand that following a pressure operated on the upper edge of said key (2), the beams (1, 1 ') connected by it in the extension of one another are automatically separated by a distance equal to their width, whatever the position in which they were wedged in the corridors of the plate, this posi tion must be close to that of final assembly, and on the other hand that the beams thus connected two by two are then connected four by four by the interpenetration of the so-called male key in the so-called female key, this interpenetration determining their position final assembly;

6.- Device according to claim 1, characterized:

in that an upper part (8) of said key at least has a height substantially less than the thickness of said slabs,

where it follows that said key serves as a stop for positioning slabs;

7.- Device according to claim 2, characterized:

in that the said beams being U-shaped profiles with folded edges (14), the plain is provided with through-holes (15) on each of the ends of the edges of its corridors, lights having a width (16) equal to that of the 'gap between the folded edges of the profiles (16'),

in that blocking means consist of a flat piece (17) called Tee wrench, composed of two parallelepiped elements (18, 18 '), one (18) lower and the other (18' ) upper, whose edges, which will be in contact, are slightly sloping (25) and connected by a central bridge (19) of a length equal to the cumulative thicknesses of the plate and of a profile, and of a width equal to that of the lights practiced in the plate,

so that the said central bridge of the tightening key, introduced into the slide (20) formed by the folded edges of the U-profiles on the one hand, the two upper (18 ') and lower (18) elements being respectively one inserted inside the profile, the other under the passage the plate, the position of the profiles relative to the ground is strictly determined;

8.- Device according to claim 2, characterized:

in that the support plate (5) is provided with oblong perforations (21, 21 ') in the vicinity of the end of the edges of the corridors of said plate, and

in that said keys (2, 2 ') comprise two fingers (22, 22') in the extension of said lateral elements (7, 7 '), of a length substantially equal to the height of the profiles and each ending by a clipping lug (23),

where it follows that the lug (23) having penetrated into the various oblong perforations, (21, 21 ') hooks the lower surface of the plate when the flat keys (2, 2') are put in place, which strictly determines the position of the beams relative to the plate;

9.- Device according to claim 1, characterized:

in that the said corridors (4,4 ') are formed by cruciform stamping of a steel plate which constitutes the plate;

10.- Device according to claim 2, characterized:

in that said key at least is a one-piece key (50,60) with four lateral elements (52 to 55).