FR2638507A1 - BASE FOR SAFE FLOORS - Google Patents

Abstract

The invention relates to the production of raised floors, and in particular to a base for such floors. The base is of the type constituted by a portion of tube 1 associated below with a support base on the ground and bearing on its upper part a support and assembly plate 3 for the ends of reinforcing bolsters, said plate 3 having orthogonally, a tubular end piece 2 fitted into the upper end of said portion of tube 1. The plate 3 is characterized in that it has eight radial projections 4 to receive the ends of the corresponding reinforcing bolsters 8. Each axis of symmetry of said projections 4 is offset by 45degre (s) relative to the axes of the contiguous projections.

Description

The present invention relates to a pedestal

  for raised floors. As is known, the raised floors consist essentially of a cross-bead reticle with square mesh, supported at intersections by a plurality of bases and on which modular panels are applied whose angles

  are placed in correspondence of said intersections.

  For floors subjected to low loads, provision has been made for the possibility of making the floor without the presence of said bolsters, that is to say only with panels supporting

  with their angles on said bases.

  The usual structure of the bases comprises a tubular element on the upper part of which is inserted a mouthpiece which

  extends perpendicularly from a support plate.

  The tubular element is associated by its lower part with a base of support on the ground, with possibly a possibility of

height adjustment.

  While being widely used, said raised floors are not without drawbacks, drawbacks that arise

  in particular of their square mesh reticle.

  Indeed, the practical requirements of use sometimes require a reinforcement of the structure in the zones which are subjected to heavy loads compared to the others, or in zones where it is necessary to eliminate some bolsters of the

reticle.

  These requirements are only partially met by the existing raised floors, which, as already mentioned, provide only one embodiment with a reticle to

square stitches.

  The main object of the present invention is to eliminate the drawbacks related to the known technique through the development of a base allowing the realization of raised floors with a support structure more flexible from the point of view of its

realization and its constitution.

  Another important object of the present invention is to

  create a base for raised floors allowing a normal

  malization of its constituent elements, so as to be able to

  satisfy all job requirements.

  Another object of the invention is the development of a base which facilitates and makes faster the assembly of the structure of

raised floor support.

  Another object of the present invention is to allow an embodiment with a reduced cost and with the means

usual production.

  These and other objects, which will appear more clearly later, are achieved, according to the invention, thanks to a base for raised floors, of the type consisting of a portion of tube associated by its lower part to a base of support and in the upper end of which is inserted a tubular nozzle extending perpendicularly from a support plate and assembly for the ends of reinforcement bolsters, characterized in that said plate has eight radial projections to receive the corresponding ends of the bolsters, the axis of symmetry of each projection being offset from

  relative to the axes of symmetry of the contiguous projections.

  In particular, the arrangement of the axes of symmetry of the projections is such that four axes are arranged orthogonally, each of them coinciding with the bisector of a pair of

four other axes.

  Other features and advantages of the invention

  will appear more clearly on reading the description

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to the accompanying drawings, in which: FIG. 1 is a side view partially in section of the upper part of a base for raised floors on which two bolsters have been fixed; - fig. 2 is a top view of the base of FIG. 1; - fig. 3 is a sectional view along a vertical plane of the coupling zone between bolster and soule; - fig. 4 is a top view of a cover element of the base and support for the corners of the panels which constitute the raised floor; - 3 - fig. 5 is a side view of a structxure achievable using the bases according to the invention, a first copy is used as end coupling element for two bolsters of different strength, while a second copy is The same FIG. 5 also includes a sectional view of a bolster of said pair of bolsters having a different mechanical strength; FIGS. 6 to 10 are top views of different compositions for producing the support structure of the

  raised floor using the bases according to the invention.

  In accordance with the figures, the base according to the invention comprises a portion of metal tube 1 associated below a ground support base (not shown) and in the upper part of which is fitted a tubular nozzle 2 which extends perpendicularly, in axial position, from a metal plate 3, preferably obtained by cutting and stamping

from a sheet of sheet metal.

  According to the invention, said metal plate 3 is provided with eight projections 4 which extend radially and each having parallel sides 5 and an axial stiffening rib 6,

  obtained by said stamping operation.

  It is important to note that the axis of each projection is

  offset by 45 'relative to the axes of the adjacent projections.

  With its radial protrusions 4, said plate 3 constitutes a bearing and anchoring plane for the ends 7 of the reinforcing bolsters 8, which, in the illustrated embodiment, consist of sheets of metal sheet folded substantially into " U "overturned and having on their upper base 9 a first longitudinal reinforcing rib 10 and on the lower part of each of their sides 11 a

  second longitudinal reinforcing rib 12.

  Advantageously, said sides 11 have their folded edge 13

  orthogonally inwards.

  Naturally, said bolsters 8 may advantageously have any type of section, both open and closed, depending on the type of use for which they are intended and the resistance characteristics to which they must comply. According to the invention, each projection 4 can be inserted between the sidewalls 11 of each bolster 8, said stiffening rib 6 being shaped so as to perfectly match the first stiffening rib 10 of the bolster, on said ribs being provided matching holes 14 for a

assembly screw 15.

  Advantageously, on each side 11 of said bolster is made, by cutting and folding inwardly, an elastic strip 16 for latching by snapping, during assembly of the bolster 8 with the projection 4, in a housing 17

  provided on each side 5 of said projection 4.

  On said metal plate 3 it is possible to position a covering element e trim 18 molded plastic, having on its upper part 4 projections 19 arranged in a cross and intended to constitute reference elements for the positioning of the panels that form the floor. The material constituting said cover member 18 is preferably of the antistatic type. On the other hand, to ensure perfect electrical continuity with the panels that constitute the floor, said cover element 18 has on its

  upper surface of small conical projections 20.

  Naturally, lining and lining elements are also provided on the upper surface of the bolsters 8, so that they can constitute a valid support for the entire

floor structure.

  As illustrated in FIG. 5, each plate 3, in addition to being used as a support and end anchoring element, may once placed at a suitable height of the ground be used as a lower bearing element for bolsters

  with increased mechanical strength.

  Said bolsters 21 suitably have a suitable cross section to increase the load resistance of the structure and allowing a precision coupling with the ends of the projections 4 of the plate 3 and / or a support

lower on said plate 3.

  As shown in FIGS. 6 to 10, the use of the pedestals according to the invention allows a wide range of embodiments of support structures for raised floors, so as to

  to be able to better meet the different requirements of use.

  More specifically, Figure 6 illustrates a normal embodiment of a floor for supporting light loads and therefore simply constituted by pedestals referred to as a whole by the reference 22 and by cover panels 23 supported by their angles on said

pedestals.

  Fig. 7 shows on the other hand a classic reticle with square meshes, constituted by bases 22, bolsters 8 and

cover panels 23.

  Fig. 8 finally shows an embodiment comprising, in addition to the bases 22 and the cover panels 23, bolsters 24 of increased length arranged diagonally across each

square of the reticle.

  This embodiment is indicated, for example, for

  floors to support loads of international importance

  compared to those of the configurations shown on the

  Fig. 6 and 7 and mainly concentrated in the center of the panels.

  For higher loads, the most indicated configurations are those of FIGS. 9 and 10, the first of which is practically a combination of FIGS. 7 and 8, while the second provides for the presence of an additional base 22 arranged at the center of the meshes. of the reticle and connected along the

  diagonals thereof by bolsters 25 of reduced length.

  Of course, using the bases according to the invention, it will be possible to produce other configurations than those illustrated, with a view to reinforcing the structure of the floor only.

  where it is necessary or desirable.

  In light of the foregoing, it is clear that the invention allows great flexibility in the realization of raised floor structures, so as to satisfy

all the requirements.

  On the other hand, the type of assembly quite particular between each end of the bolsters and each projection of the support plate makes the structure particularly stable even without using the assembly screws, the latter having the main function of ensuring electrical continuity and possibly

  that of constituting an additional reinforcing element.

  It goes without saying that the invention thus conceived is susceptible of numerous modifications and variants all falling within the

framework of the same inventive concept.

  Moreover, all the constituent elements can be

  replaced by other technically equivalent elements.

  Similarly, in the practical embodiment, the materials used, provided they are compatible with the intended use, as well as the dimensions, may be arbitrary

according to the requirements.

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Claims (8)

  1) Base for raised floors, of the type consisting of a portion of tube (1) associated by its lower part with a base of support and in the upper end of which is inserted a tubular nozzle (2) extending perpendicularly to from a support and assembly plate (3) for the ends of reinforcement bolsters, characterized in that said plate (3) has eight radial projections (4) for receiving the corresponding ends of eight bolsters (8). ), the axis of symmetry of each projection (4) being offset by 45 'with respect to   axes of symmetry of contiguous projections.   2) Base according to claim 1, characterized in that the arrangement of the axes of symmetry of said projections (4) is such that four axes are arranged orthogonally, each of them coinciding with the bisector of a couple of four other axes.   3) Base according to claim 1, characterized in that said plate (3) is made of a metallic material cut and stamped.   4) Base according to claim 1, characterized in that each of said radial projections (4) has sides   parallel (5) and an axial stiffening rib (6).   ) Base according to claim 1, characterized in that it is adapted to the assembly of bolsters (8) having a cross section substantially shaped "U" reversed with longitudinal stiffening ribs (10, 12) on their based and on their sides.   6) Base according to claim 1, characterized in that it is suitable for assembling bolsters (8) having any   what type of cross section, both open and closed.   7) Base according to claims 1, 3 and 4, characterized in that the assembly between each projection (4) and the corresponding end of the bolster is obtained by engagement of the projection between the sides of the end of the bolster ( 8) said   sides having resilient sipes (16) folded towards the   interior, obtained by cutting, and adapted to snap into corresponding housings (17) provided on each side of said projections. 8-   8) Base according to any one of the claims   preceding, characterized in that on said ends of the bolsters (8) and said projections (4) have been provided holes (14) in correspondence with the holes provided on said ends of the bolsters, so as to allow their reciprocal assembly.   9) Base according to any one of the claims   characterized in that on the upper part of said plate (3) it is possible to position a cover element (18) made of plastic material having markings (19) on the top for the positioning of the floor panels. .