WO2003010400A1 - Procede de realisation d'un plancher sureleve, et plancher sureleve susceptible d'etre realise par ce procede - Google Patents
Procede de realisation d'un plancher sureleve, et plancher sureleve susceptible d'etre realise par ce procede Download PDFInfo
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- WO2003010400A1 WO2003010400A1 PCT/FR2002/002702 FR0202702W WO03010400A1 WO 2003010400 A1 WO2003010400 A1 WO 2003010400A1 FR 0202702 W FR0202702 W FR 0202702W WO 03010400 A1 WO03010400 A1 WO 03010400A1
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- WIPO (PCT)
- Prior art keywords
- slabs
- stud
- floor
- trellis
- main floor
- Prior art date
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/024—Sectional false floors, e.g. computer floors
- E04F15/02447—Supporting structures
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/024—Sectional false floors, e.g. computer floors
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/024—Sectional false floors, e.g. computer floors
- E04F15/02405—Floor panels
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/36—Installations of cables or lines in walls, floors or ceilings
- H02G3/38—Installations of cables or lines in walls, floors or ceilings the cables or lines being installed in preestablished conduits or ducts
- H02G3/383—Installations of cables or lines in walls, floors or ceilings the cables or lines being installed in preestablished conduits or ducts in floors
- H02G3/385—Installations of cables or lines in walls, floors or ceilings the cables or lines being installed in preestablished conduits or ducts in floors in modular floors, e.g. access floors
Definitions
- the present invention relates to a method of producing a raised floor on a main floor, by mutual juxtaposition of slabs commonly having an identical plane, along intersecting joint lines defining a predetermined regular network having intersection nodes between the joint lines when the raised floor is seen in plan, said process comprising the succession of steps consisting of: a) locating said network, in plan, on the main floor, b) placing at the nodes of said network, as located on the main floor, studs for supporting the slabs, c) deposit the slabs on the studs by juxtaposing them along the joint lines and routinely resting, on the same stud, corner areas of several slabs.
- step a) is carried out by tracing on the ground and the support pads that are put in place in step b), depending on this layout, consist of cylinders each of which usually includes:
- a head then turned upwards and intended to receive the areas of the corners of the corresponding slabs during step c
- a screw system then oriented substantially vertically, interposed between the base and the head and capable of being operated to adjust the level of the head in relation to the base, and therefore the level at which the raised floor slabs will be in relation to the main floor after step c).
- step c) After which the slabs are directly at the right level with respect to the main floor and in a coplanar relationship with their upper faces, defining the raised floor, if the alignment of the cylinders, or leveling of their head relative to their base, was carried out correctly.
- This traditional mode of implementation has a certain number of drawbacks.
- step b) itself constitutes a long and tedious step.
- steps b) and c) there is a separation and displacement of the jacks, followed approximate repositioning, and / or misalignment by accidental rotation of the screw system. Indeed, one generally proceeds, between stages b) and c), to the installation, on the main floor, of the cables of electrical connection, telephone and data processing which will then be hidden by the raised floor and will serve the installations placed on that -this.
- Respecting a precise positioning, for each stud is then superfluous so that we can dispense with prior layout and replace steps a) and b) by simply depositing the plates on the main floor, in a relationship even approximate juxtaposition mutual, before depositing the tiles on the studs by juxtaposing them mutually, which makes it possible to produce a raised floor particularly quickly and economically in terms of labor.
- the object of the present invention is to remedy a maximum of these drawbacks and, in its preferred modes of implementation, all of these drawbacks, for this purpose, the present invention proposes to improve the process indicated in the preamble.
- the method according to the invention is characterized in that: - step a) is implemented by depositing on the main floor at least one substantially rigid, flat prefabricated trellis, formed of substantially rigid, intersecting rods , mutually secured at crossing points and defining between them meshes, said trellis being shaped and arranged so that either crossing points or centers of meshes, respect a regular distribution in plan and coincide with the nodes of said network as to be located on the main floor, - Step b) is implemented by wedging the studs on the trellis against sliding on the main floor, by placing them respectively at said crossing points or at said mesh centers.
- step a) allows step a) to be carried out in a particularly simple and rapid manner by taking a few marks on the main floor.
- Step b) is also considerably simplified and accelerated since, as soon as the trellis is laid, the location of the studs is unambiguously defined and that the setting of the studs against movement on the floor main, in practice by sliding, is ensured by their wedging on the trellis.
- certain interventions between steps b) and c) such as laying electrical, telephone and computer connection cables, lead to the voluntary or accidental movement of a stud, its correct repositioning presents no more difficulty than its positioning initial.
- the mesh is wedged against sliding on the main floor, relative to walls or the like bordering it, which not only determines the position of the studs. one in relation to the other, but also in relation to the walls and any partition system that could be installed on the main floor.
- a main floor having any shape and all dimensions without having to resort to making a trellis of shape and dimensions adapted to each case, which realization could generally only be carried out in situ
- step a) is implemented by juxtaposing , on the main floor, several elementary trellis having respectively said regular distribution, in plan, either of the crossing points, or of mesh centers and having respective dimensions in plan appreciably smaller than those of the main floor, by mutually wedging the elementary trellis against sliding on the main floor so that, from one elementary trellis to the other, said regular distribution, in plan, of the crossing points or centers of meshes, respectively, is respected.
- the method according to the invention is compatible with the use of studs adjustable in height, by any appropriate means as is the case with screw jacks of the prior art, which makes it possible to adjust the height of the studs, in step b), so that they peak at the same level.
- the screw jacks of the prior art can be used as studs, as soon as their base is geometrically adapted to the setting on the trellis, in a characteristic manner. of the present invention, or studs less sensitive to disturbance, or even completely insensitive to disturbance, and of which preferred embodiments will be described later.
- At least one of the studs is chosen or produced so that it is hollow and internally defines a vertical passage, in particular by producing at least one base of at least one stud, namely preferably the entirety of this stud, in a particularly simple and economical manner while making it possible to have a satisfactory mechanical resistance of this stud in vertical compression and in buckling, by winding of a metal sheet in a tubular shape, preferably so to allow to remain over the entire height of the base or of the stud, respectively, an interior access slot, usable for example for passing one or more copies of the above elongated flexible member, in which case we put in works step b) by respectively pressing the base or the stud, on edge, flat on the main floor by fitting it respectively on or between the rods of the trellis.
- this embodiment by winding a sheet allows a final adjustment of the height of this stud, without risk of subsequent disruption, since it is then possible to adjust the height of the stud by cutting the sheet on demand during step b).
- Such an intervention at the level of a hollow stud can be carried out after dismantling of the corresponding slabs or localized cutting of these but, preferably, one chooses or realizes at least some of the slabs so that they have at least one scalloped corner and, during step c), the scalloped corners of several slabs are made to coincide on said hollow stud so as to constitute an access to said flexible elongate member, via said passage.
- This access is preferably closed by means of a plug, preferably removable, after step c).
- This plug can simply play a sealing role but it can also include connection means, preferably removable, of a device placed above the raised floor on the elongated flexible member.
- connection means preferably removable, of a device placed above the raised floor on the elongated flexible member.
- connection boxes usually integrated into cutouts of slabs and closed by a hatch, which are both particularly expensive and particularly unsightly regardless of the care taken to coat them. in the same way as the neighboring tiles.
- the slabs can be left to rest simply by gravity, independently of one another, on the studs or else, d 'A preferred way, mutually secure the tiles, preferably removably.
- the slabs When the slabs have indented corners which complement each other either to provide access to a flexible elongate member, via a vertical passage defined by a hollow stud, or without providing access to a flexible elongate member but because the corners slabs are preferably made identically and therefore scalloped to possibly constitute such an access, the slabs are mutually secured by inserting, between the scalloped corners of the slabs, a key cooperating in form complementarity with each of these this.
- the presence of such a key is compatible with that of a removable plug, making it possible to release, if necessary, access to a flexible elongate member and, for this purpose, without a preferred embodiment of the key, that -this has the shape of a crown having an outer periphery provided with means of cooperation with each said slabs by complementary shape and an inner periphery delimiting a plug receiving orifice, preferably removable.
- the present invention extends to such a raised floor, capable of being produced by the method according to the invention on a floor main and comprising:
- this floor being characterized in that it further comprises a substantially rigid, flat, resting trellis on the main floor and cooperating with the studs to wedge them against a slip thereon.
- This floor according to the invention can also advantageously have all the characteristics resulting from the implementation of the method according to the invention both with regard to the practical realization of the trellis and its setting as with regard to the presence of at least one elongated flexible member between the raised floor and the main floor and access to such a flexible elongated member in particular through a key for mutual securing of the slabs, inserted between the notched corner areas and cooperating in form complementarity with each corresponding tiles.
- Figure 1 shows a plan view, from above, of a raised floor resting on a main floor by means of hollow studs which are anchored on a trellis resting on the main floor and some of which serve as access to an organ elongated flexible connection fixed on the trellis according to a determined path, in accordance with a preferred embodiment of the present invention, only certain slabs of the raised floor having been illustrated and this in dotted lines for reasons of clarity.
- FIG 2 shows a top view of a detail identified in II in Figure 1, that is to say a stud serving as an access passage to a flexible elongate member, the slabs have not been illustrated in this figure.
- Figure 3 shows, in elevation in a direction identified in III in Figure 1, the mutual setting of two elementary trellis constituting the aforementioned trellis with other identical elementary trellis.
- FIG. 4 shows a top view of the connection of the wedging means with one of the elementary trellises, in a direction marked in IV in FIG. III.
- FIG. 5 shows a view of this connection in perspective, in a direction marked in V in FIG. 4.
- FIG. 6 illustrates another mode of cooperation between the same wedging means and two trellises, in elevation in a direction marked in VI in FIG. 1.
- FIG. 7 shows a developed, flat, and exploded view of a stud.
- FIG. 8 shows a view of such a stud in section through a vertical plane including its axis and identified in VIII-VIII in FIG. 2.
- FIG. 9 shows a top view of the mutual connection of four slabs at this stud, in a direction marked in IX in FIG. 8, the slabs being illustrated in dotted lines.
- FIG. 10 shows a view of a key ensuring this mutual connection, in section through two half-planes defined by the common axis of the key and of the stud and marked in X-X in FIG. 9.
- FIG. 11 illustrates the cooperation of the key with two of the slabs, in section through a plane including the aforementioned axis and identified in XI-XI in FIG. 9.
- FIG. 12 shows, in a view similar to that of FIG. 2, another method of anchoring a stud on a trellis.
- Figure 13 shows, in a view similar to that of Figure 1, an alternative embodiment of a raised floor according to the invention.
- FIG. 14 shows, in a view similar to that of FIG. 2, a detail marked in XIV in FIG. 13, that is to say the corresponding variant embodiment of a stud, namely an embodiment in a single piece by winding a metal sheet in tubular form.
- FIG. 15 shows, in a view similar to that of FIG. 3, this stud in the flat developed state, that is to say the plane of a metal flank intended to constitute this stud.
- Figure 16 shows a top view of a floor slab illustrated in Figure 13.
- FIG. 17 shows a top view, similar to that of FIG. 9, of a cabochon acting both as a closure plug and as a mechanical connection key between four slabs according to FIG. 16, in line with a stud .
- FIG. 19 shows, in a view similar to that of FIG. 9, a top view of the mutual connection of four slabs according to FIG. 16 at the level of a stud in the case of the raised floor according to FIG. 13.
- FIG. 20 illustrates the cooperation of a cabochon with two of these slabs, in section through a plane marked in XX-XX in FIG. 19.
- FIG. 21 shows a perspective view of a machine intended to cut each stud to its final height, in situ, when the stud is produced in one piece by winding a metal sheet as shown in particular by Figures 14 and 15.
- Figure 22 shows a view of this machine essentially in section through a vertical plane of symmetry.
- Figure 23 shows a detail marked in XXIII in Figure 22.
- Figure 24 shows a view of the machine in section along a horizontal plane marked in XXIV-XXIV in Figure 22.
- Figure 25 shows a view of a detail of the machine in section along a horizontal plane marked in XXV-XXV at Figure 22.
- Figure 26 shows a view of this detail in section through a vertical plane parallel to the mean plane of symmetry of the machine and identified in XXVI-XXVI in Figure 25.
- Figure 27 shows a limited and enlarged view of the same detail, in a direction identified in XXVII in Figure 26.
- FIG. 1 Illustrated in Figure 1 a corner of a room 1 having a main floor 2 whose outline is defined, with respect to the corner considered of room 1, by a vertical flat wall 3 and by a vertical flat partition 4 arranged at right angles to this wall 3, which corresponds to a frequent configuration but should not be considered as limiting with regard to the configurations compatible with the implementation of the present invention.
- a raised floor 5 commonly comprising a mutual juxtaposition of standard tiles 6, that is to say mutually identical and produced in series, for example of general square plan with a side of 50 cm, and so particular, on the shore, of slabs 7 made to measure, in particular by cutting slabs 6, to complete the covering of the main floor 2, taking account of the contours thereof and possibly partially mounted in the traditional way.
- the slabs 6, the shape and dimensions of which could be different from those which have just been indicated, and the slabs 7 are advantageously made of the same material, which can be chosen from a wide range including in particular agglomerated wood, stone , for example marble or granite, ceramic, ribbed metal, fiber concrete or other mortars, these examples being in no way limiting.
- FIGS. 1, 9, 11 illustrate slabs 6, each of which is essentially delimited by two plane faces 8, 9, mutually parallel and of the same general square plane, arranged horizontally and turned upwards and downwards respectively when the slab 6 occupies its installation position on the main floor 2.
- the coplanar juxtaposition upper faces 8 of standard slabs 6 and upper faces 10, also flat and horizontal, slabs 7 made to measure constitutes the raised floor 5 proper or false floor, substantially horizontal like the main floor 2.
- the term H is used to designate the constant distance, and more precisely approximately constant distance due to production tolerances, in particular of the main floor 2, between the latter and the lower faces 9, mutually coplanar, of the slabs 6 or even the lower faces not shown, coplanar with the faces 9, of the slabs 7 made to measure.
- Each standard slab 6 is also delimited by a substantially vertical peripheral edge 11, mutually connecting the two faces 8 and 9 and defined for the most part, that is to say with the exception of four corner zones 13, by four lateral faces 12 plane, mutually identical, substantially rectangular, vertical, and perpendicular two by two, by which the slabs 6 are juxtaposed on the one hand mutually and on the other hand to non-referenced edge faces of the custom slabs 7.
- a substantially vertical peripheral edge 11 mutually connecting the two faces 8 and 9 and defined for the most part, that is to say with the exception of four corner zones 13, by four lateral faces 12 plane, mutually identical, substantially rectangular, vertical, and perpendicular two by two, by which the slabs 6 are juxtaposed on the one hand mutually and on the other hand to non-referenced edge faces of the custom slabs 7.
- this mutual juxtaposition of the tiles 6 and the tiles 6 and 7 takes place along rectilinear joint lines 14, mutually parallel and for example parallel to the wall 3, and joint lines 15 mutually parallel but perpendicular to the joint lines 14, these joint lines 14 and 15 defining a predetermined regular network having n uds 16, regularly distributed, of intersection between the joint lines 14 and 15.
- Two adjacent joint lines 14, like two adjacent joint lines 15, are mutually spaced by the same distance substantially equal to the distance separating two faces planar lateral sides 12 mutually parallel, defining the length of one side of the square corresponding to the general plane of a slab 6.
- the slabs 6 In each of the corner zones 13, the slabs 6 have a notch 18 defined by a localized concave zone 17 of the edge 11.
- the edge 11 has between the faces 8 and 9 of the slab 8 a cylindrical shape of revolution around a vertical axis 19 passing through the node 16, with an angular development limited to 90 °, between two lateral faces 12 which this concave zone 17 connects to each other.
- Each of the corner zones 13 of a slab 6 is thus designed, as are the corner zones of slabs 7 which are juxtaposed with corner zones 13 of slabs 6 when the raised floor 5 is produced.
- the notches 18 of the slabs 6 and the similar notches, not referenced, slabs 7 complement each other to form, around each node 16, between the tiles 6, 7, a vertical opening 20, of axis 19, delimited by an inner peripheral face not referenced cylindrical of revolution around the axis 19 and constituted by the concave zones 17 of the peripheral edges 11 of the tiles 6 and the case where appropriate, similar non-referenced concave zones of the edges also of non-referenced slabs 7.
- the axis 19 will serve as a reference, subsequently, when it comes to defining a shape of revolution, a circumferential direction, a diameter, radius, or any other characteristic linked to a shape of revolution.
- the lateral faces 12 of the slabs 6, as well as the non-referenced lateral faces by which the slabs 7 are connected to such lateral faces 12, can be hollowed out with a groove continuous device receiving a joint ensuring between the slabs 6, 7 a continuity which can have a mutual sealing function and / or a firebreak function and / or a barrier function against a falling object between the slabs and / or a purely aesthetic function of concealing the joints between the slabs.
- the slabs 6, integrally, and the slabs 7, at least in part, are carried around the nodes 16, in the corner areas 13 of the tiles 6 and in the corresponding corner areas, not referenced, of the tiles 7, that is to say still around each opening 20, by mutually identical studs 21, adjustable in height so as to allow the height H.
- each of these studs 21 is hollow and internally defines a vertical, continuous passage 22. More precisely, each stud 21 has a generally tubular shape of revolution around the axis 19, with a current internal diameter Di greater than a few centimeters in diameter D 2 of an opening 20.
- the diameter Di can be of the order of 22.5 cm, it being understood that these figures are only given by way of example non-limiting and that other figures could be chosen without departing from the scope of the present invention, the diameter Di however having to be greater than the diameter D 2 while remaining substantially less than the distance the or length of one side of the square corresponding to the general plane of the faces 8 and 9 of a slab 6; in addition, the diameter D 2 is preferably chosen to be large enough to allow the introduction of a hand into the passage 22, through the openings 20, for reasons which will emerge from the following description.
- each stud 21 has a base 23 and a marquee 24, one and the other tubular of revolution around the axis 19 with an internal diameter equal to Di, and wedging means 25 serving as intermediaries for the vertical support of the marquee 24 on the base 23 with restraint against a mutual radial offset with reference to the axis 19 and possibility of adjusting the level of the marquee 24 relative to the base 23, so as to allow the height H to be adjusted as required.
- the marquee 24 could be omitted, in which case the lower faces such as 9 of the slabs 6 and 7 would rest directly on the wedging means 25.
- the design of a stud 21 comes out more particularly of FIG. 8, where such a stud 21 is seen in section through a plane passing through its axis 19, in line with a wedging means 25, and of FIG. 7 where the development has been illustrated, flat, of such a stud and, more precisely, of its various components in a preferred embodiment.
- the base 23 is constituted by a metal sheet wound in the tubular form previously described; by way of nonlimiting example, one can use for this purpose a sheet of galvanized steel with a thickness ei of 8/10 mm, suitably bent but other materials as well as other thicknesses could be suitable without that this goes beyond the scope of the present invention.
- this sheet has a generally defined rectangular shape, between two main faces intended to constitute for the base 23 a peripheral face outer 26 and an inner peripheral face 27, both cylindrical of revolution around the axis 19, by two edge faces 28 and 29 planar, perpendicular to the faces 26 and 27 and mutually parallel, and two faces of edge 30 and 31 also flat, perpendicular to the faces 26 and 27 and mutually parallel but perpendicular to the edge faces
- any dimension measured parallel to the edge faces 26 and 27 on the flat development of FIG. 7 will be qualified as circumferential, while the dimensions measured parallel to the faces edge 30 and 31 will be considered as heights or depths as appropriate.
- edge faces 28 and 29 are mutually spaced apart by a distance or height hi less than half of H and constituting the overall height of the base 23 on the main floor 2; indeed, after winding to constitute the base 23, the edge face 28 constitutes for the base 23 a lower end for flat support on the main floor 2, and for this purpose has the shape of a flat crown, of revolution around the axis 19 to which it is perpendicular, while the edge face
- the sheet has a dimension Li of a few centimeters less than the circumference of a circle of diameter Di so that after winding to constitute the base 23, between the edge faces 30 and 31, there remains a slot 32 visible in FIG. 2, where only the base 23 of the stud 21 has been illustrated, this slot 32 extending over the whole of the height hi of the base 23 and constituting a radial access to the passage 22 through the base 23.
- the aforementioned difference between the value of Li and the length of a circle of diameter Di can be of the order of 65 mm, which constitutes approximately the width li of the slot 32 between the edge faces 30 and 31 when the base 23 is viewed in a horizontal plane.
- the marquee 24 for example made in the form of a section of a plastic tube of the same thickness ei as the sheet metal constituting the base 23, has meanwhile, when seen in its flat development, the form of a strip having, between two main faces 35, 36 then flat and mutually parallel, constituting for the marquee 24 respectively an outer peripheral face and an inner peripheral face, both cylindrical of revolution around the axis 19 with a diameter of the inner peripheral face 36 equal to Di, two edge faces 33 and 34 plane, mutually parallel and perpendicular to the faces 35 and 36.
- the edge faces 33 and 34 constitute for the marquee 24 flat annular faces , of revolution about the axis 19 to which they are perpendicular, and more precisely a lower end face by which the marquee 24 rests on the base 23 via the m wedging means 25, under conditions which will be described later, and an upper end face on which the slabs 8, by their lower faces 9, and where appropriate the slabs 7, by their lower faces not shown, are supported flat around opening 20.
- the marquee 24 is continuous in the circumferential direction, as well as its faces 33 and 34, and it has, parallel to its faces 33 and 34, when it is seen developed flat, a dimension L 2 which is that of the circumference of a circle of diameter Di.
- the two edge faces 33 and 34 are mutually spaced by a distance or height h 2 which is less than the distance H and more specifically, in the example illustrated, less than half the distance H; however, for a determined value of hi, less than half of the smallest value that can reasonably be considered for H, h 2 can be freely chosen according to the value which one wishes to give to H, for a determined dimensioning of the wedging means 25 which will be described later.
- the use of means of wedging 25 independent of the marquee 24 proves to be advantageous in that it makes it possible to dispense with any cutting of the latter in particular at the level of the edge face 33 defining its lower end of support i on the base 23, but it is understood that it would not, however, depart from the scope of the present invention by integrating into the marquee 24, in the form of particular cutouts of the edge face 33, in a manner which n was not illustrated but could easily be deduced from the following description, the wedging means 25 which will be described as independent of the marquee 24.
- the edge face 29 of the base 23 has, in a manner regularly distributed between the edge faces 30 and 31, that is to say in a manner regularly distributed angularly around the axis 19, three mutually recesses identical 37 each of which constitutes a group respective 38 of steps 39 mutually identical, gradually moving away, step by step, from the edge face 29 in the same circumferential direction 40 going from the edge face 31 towards the edge face 30.
- Each recess 37 thus extends over a length l 2 of the edge face 29 less than a third of Li and for example 90 mm for the aforementioned value of Li, this figure being indicated only by way of nonlimiting example.
- each group 38 of steps 39 thus defined comprises nine steps 39, each of which thus has, parallel to the edge face 29, a length l 3 equal to the 9 th of l 2 , ie 10 mm in the nonlimiting example illustrated.
- Each of the steps 39 is plane and is located in a respective geometric plane 41 perpendicular to the axis 19, as illustrated, but may also have with reference to such a plane 41 a slight downward slope, that is to say moving away from the edge face 29, in the opposite direction to the direction 40, in a manner not illustrated but easily understood by a person skilled in the art.
- the three groups 38 of steps 39 being mutually identical, each step 39 of a group 38 is coplanar with a step 39 of each of the other groups 38.
- the steps 39 are mutually offset by a distance or height h 3 , which by way of nonlimiting example, can be 2 mm and is in any case less than the ratio of the dimension or height hj . number of steps 39.
- the wedging means 25, which will now be described, are designed to serve as an intermediary for supporting the edge face 33 of the marquee 24 on selected mutually identical sub-groups 52 of steps 39 of each group 38 , in order to allow an adjustment of the value of H for determined values of hi and h 2 , with a step of h 3 in the adjustment, it being understood that the adjustment can be refined if necessary, to obtain a coplanarity of the upper faces 8 and 10 of the slabs 6 and 7, by cutting the capitals 24 concerned and / or by interposing shims between the edge 34 of the capitals 24 concerned and the lower faces of the slabs concerned, this insertion being able to be carried out after the laying of the slabs, through the openings 20, the dimensions of which are sufficient to allow the passage of a hand and the manipulation of a wedge inside the corresponding passage 22.
- the wedging means 25 could be in the form of a single annular wedge, interposed coaxially between the edge faces 33 and 29 and preferably provided with suitable means for retaining against a radial offset. with respect to the latter, with reference to axis 19.
- the design of such a single wedge, as well as that of wedging means directly integrated into the edge face 33 of the marquee 24, could easily be deduced, by a Those skilled in the art, the preferred embodiment of the timing means 25 which will now be described. According to this preferred embodiment, the wedging means
- 25 are made up of as many individual shims 42, mutually independent, as there are groups 38 of steps 39, that is to say three shims 42 in the example illustrated; insofar as one could however envisage a greater number of groups 38, mutually identical and regularly distributed angularly around the axis 19 along the edge face 29, of steps 39 mutually identical, one could also provide a number greater than three, in relation to the number of groups 38 of wedges 42 mutually independent.
- the shims 42 are mutually identical and each of them can advantageously be produced, by way of nonlimiting example, by flat welding, one on the other, of three sheet metal plates 43, 44, 45 which, when the wedge 42 cooperates with the base 23 and the cap 24, are oriented vertically and constitute with reference to the axis 19 a radially outer plate, a radially intermediate plate and a radially inner plate.
- the intermediate plate 44 serves as a support intermediate between the lower edge 33 of the marquee 24 and a subgroup 52 of steps 39, for example five steps 39 in the example illustrated, and the outer 43 and inner 45 plates constitute cheeks which hold it against a tilting or any other radial movement with reference to the axis 19 by pressing respectively on the outer peripheral faces 26, 35 of the base 23 and of the marquee 24 and on their inner peripheral faces 27, 36.
- the intermediate plate 44 has a thickness equal to ⁇ i between two main faces 46, 47 which, when the wedge 42 is in service, are vertical and have a bending in a cylindrical shape of revolution around the axis 19, with a diameter equal to Di with respect to the face 47 which is turned towards this axis 19 and thus extends without detachment the inner peripheral faces 27 and 36 of the base 23 and of the marquee 24, while the face 46, turned in the direction of a distance with respect to the axis 19, extends without detachment the outer peripheral faces 26 and 35 of the base 23 and of the marquee 24.
- the two main faces 46 and 47 are connected to an upper edge face 48 which is flat and perpendicular to the axis 19 to serve as localized support, flat, on the lower edge face 33 of the marquee 24 while downwards, the two main faces 46 and 47 are connected to a lower edge face 49 having the shape of a group 50 of steps 51 which gradually moves away from the edge face 48 in the direction 40 and are closely complementary steps 39 of the sub-group 52 of steps 39 with which the wedge 42 is called upon to cooperate, it being understood that this sub-group 52 can be chosen freely, as a function of the height H, in each group 38 of steps 39.
- each sub-group 52 comprises five steps 39
- the group 50 itself comprises five steps 51 which are located at least approximately in respective non-referenced planes perpendicular to the axis 19, mutually spaced és parallel to the axis 19 by the same distance h 3 from two steps 39 and each have the same circumferential dimension l 3 as a step 39.
- the step 51 furthest from the edge face 48 that is to say the most downstream taking account of the direction 40, is spaced from this face 48 by a distance or height h 4 which, in the example illustrated, is the same as the distance which separates the edge face 29 from the base 23 the step 39 the farthest from this face 29, that is to say also the most downstream with reference to the direction 40, but which could also be greater than this distance.
- the two main faces 46 and 47 as well as the edge faces 48 and 49 are connected to two edge faces 53, 54 perpendicular to the faces 46, 47, 48, 49 and located in non-referenced geometric planes including the axis 19, these two faces 53 and 54 being mutually spaced circumferentially by a distance l 4 which corresponds to the circumferential dimensions of the group 50 of steps 51 and of the subgroup 52 of steps 39.
- l 4 which corresponds to the circumferential dimensions of the group 50 of steps 51 and of the subgroup 52 of steps 39.
- the outer plate 43 is also curved so as to present respectively in the direction of a distance relative to the axis 19 and in the direction of a approximation relative thereto of the main faces 55, 56 matching a geometric cylinder of revolution around the axis 19, with a diameter identical to that of the face 46 of the intermediate plate 44 with regard to the face 56 which is applied as continuously as possible on this face 46, on which it is fixed by welding.
- the inner wall 45 is curved so as to present respectively in the direction of a distance with respect to the axis 19 and towards the latter of the main faces 57, 58 matching a geometric cylinder of revolution around the axis 19, with a diameter equal to Di with regard to the face 57 which is applied continuously to the face 47 to which it is fixed by welding.
- the plates 43 and 45 are delimited by plane edge faces, coplanar with edge faces 53 and 54 of the intermediate plate 44, respectively, so that the reference numerals 53 and 54 have been used to also designate these edge faces of the plates 43 and 44.
- the outer 43 and inner 45 plates are delimited downwards by a respective lower face of edge 59, 60 and upwards by a respective upper face of edge 61, 62, flat and perpendicular both to the corresponding main faces 55, 56, 57, 58 and to the edge faces 53, 54.
- the two edge faces 59 and 60 are located in a same geometrical plane not referenced perpendicular to the axis 19 and the same is true of the two edge faces 61 and 62.
- each of the plates 43 and 45 has the same dimension or height h 5 , parallel to the axis 19, and this dimension h 5 is greater than the dimension h 4 so that the two plates 43 and 45 project vertically respectively below the lower edge face 49 of the intermediate plate 44 and above the upper edge face 48 thereof, so to define with each of these edge faces 49, 48 a respective groove 115, 116 of nesting respectively on the base 23, by the upper edge face 29 thereof, and under the marquee 24, by the lower face of song 33 of it.
- the height h 5 is such that: the upper edge faces 61, 62 of the outer 43 and inner 45 plates form upwards, relative to the upper edge face 48 of the intermediate plate 44, a projection d '' a height h 6 at most equal, and preferably less than the lowest of the values that it may be necessary to give to the height h 2 of the marquee 24 in the range of possible values of H, taking into account the height hi of the base 23, and - the lower edge faces 59, 60 of the outer and inner plates 43, 45 form under the step 51 the most distant from the field face 48 of the intermediate plate 44 a projection of a height h 7 less than the difference between the heights hi and h 4 , and this by a value at least equal to that of a height h 8 which will be defined later.
- each wedge 42 flat by each of the steps 51, on the steps 39 of a sub-group of steps 39 arranged identically in each group 38, placing in contact with the outer peripheral faces. 26 and inner 27 of the base 23 the faces 56 and 57 of the walls 43 and 45, the faces are placed upper edges 48 of the plates 45 of the different wedges 42 in the same geometrical plane not referenced, perpendicular to the axis 19, to provide localized support, flat, to the lower edge face 33 of the marquee 24 whose upper face of song 34 is placed at a level H conditioned by the choice thus made of subgroup 52.
- Each pad 21 thus offers stable support, at the determined height H of the main floor 2, for the raised floor 5 and the risk that the height adjustment thus effected is accidentally changed or changes in the long run, for example under the effect vibration, is extremely reduced.
- the pads 21 allow to give the slabs 6, 7 a stable support on the main floor 2.
- additional studs 21, serving to support the slabs for example in a central zone of these this.
- the studs 21 must not only be adjusted in height, but also positioned in plan, prior to the installation of the tiles 6, 7, on the main floor 2 according to a planned positioning of the nodes 16 of crossing between the lines of joint 14 and 15 of the slabs when they are laid, for example in harmony with a layout chosen for a false ceiling in room 1.
- each of the studs 21 cooperates by its base 23, and more precisely by zones thereof located in the immediate vicinity of its lower edge face 28, with a rigid, flat lattice 63 which is placed flat. on the main floor 2 prior to the installation of the studs 21, in a position determined according to the position of the wall 3 and of the partition 4, or of any other delimitation of the main floor 2, and as a function of the position provided for the nodes 16.
- the trellis 63 consists of a rigid assembly, produced on the main floor 2 itself, of elementary lattice 64 rigid, flat, prefabricated, for reasons of ease and speed of implementation, but one could possibly plan to make it in one piece, for example directly on the floor 2, under conditions that a person skilled in the art will easily deduce from the following description.
- Each of the elementary lattices 64 has a rectangular plan shape, the dimensions of which are for example 2 m by 1.20 m to facilitate its handling, it being understood that several elementary lattices can also be in a form hinged together to be unfolded on the main floor 2.
- Each of these elementary trellises 64 consists of a welded assembly of straight metal rods or wires, for example of respective circular section with a diameter of 5 mm, for example of galvanized steel, which intersect at right angles to form square meshes.
- mutually identical 67 whose sides have a length l 5 equal to an integer sub-multiple of the distance separating it from each other two joint lines 14 or 15 mutually parallel and neighboring, which corresponds approximately to the distance separating two side faces from each other 12, mutually parallel, of a slab 6.
- l 6 is 50 cm
- the value of l 5 is in the example illustrated by 10 cm.
- each elementary trellis 64 is formed of rectilinear wires 65, mutually parallel, which constitute a lower ply, lying flat on the main floor 2 and are oriented parallel to the joint lines 15, at the vertical alignment of which certain wires 65 are disposed, and of wires 66 also rectilinear and mutually parallel but oriented at right angles to the wire 65 when the elementary trellis 64 is seen in plan, these wires 66 forming a second ply which rests on the ply of wires 65 and is therefore spaced from the main floor 2 by the latter, in practice with a height hg equal to the diameter bi of the wires 65, to which the diameter d 2 of the wires 66 is moreover identical; the wires 66 are oriented parallel to the joint lines 14, plumb with which some of these wires 66 are arranged.
- the elementary trellises 64 are assembled mutually, in the mutually juxtaposed state, by means of mutual wedging against a relative sliding on the floor 2; similarly, they are wedged against such a sliding relative to the wall 3 and to the partition 4.
- wedging means are used which are more particularly visible in FIGS. 3 to 6, which are designed to maintain the regularity of distribution of their meshes 67 from one elementary trellis 64 to the other, so that the trellis 63 in its together has a regular distribution of mesh 67.
- the wedging means between two elementary trellises 64 are designed so as to: - align the wires 66 of two elementary trellises 64 mutually juxtaposed in the direction of these wires 66, that is to say joint lines 14, maintaining, between the strands 65 of the edge of these two elementary lattices 64 a spacing l 7 identical to I5,
- a spacer 68 which will be described in its sizing suitable for maintaining a mutual spacing l 7 or between two elementary trellises 64 neighboring, consists of a rigid assembly of a straight wire 69, of identical section to that of wires 65 and 66, and of two end caps 70 for clipping either on the edge wires 65 of two neighboring elementary trellises 64, as shown in FIGS. 3 to 5, or under the wires of bank 66 of two neighboring elementary lattices 64 as shown in FIG. 6, under conditions such that, respectively, the wire 69 provides a connection, in a straight line, respectively between two wires 66 or between two wires 65 of the elementary lattices 64 thus neighboring and assembled together.
- the wire 69 has a length l 9 equal to l 7 or, reduced by the diameter di or d 2 of a wire 65 or 66, between two flat end faces 71, perpendicular to an axis 72 of the wire 69.
- the wire 69 is connected integrally to a respective end piece 70, the two end pieces 70 being offset on the same side of the axis 72 with respect to the wire 69 and each defining a shape in axis stirrup respective 73, the two axes 73 being located perpendicular to the same mean plane 74 of the spacer 68, including the axis 72.
- the axes 73 are spaced from axis 72 by the same distance h ⁇ 0 equal to the diameter d 3 of the wire 69, that is to say the diameters di and d 2 of the wires 65 and 66.
- Each of the end pieces 70 in the shape of a stirrup, is open in the direction of a distance with respect to the axis 72, in the above-mentioned plane 74, and has, towards the respective axis 73, an inner peripheral face 75 which can be brought, by elastic deformation of the end piece 70, to a configuration in which it is cylindrical of revolution around the axis 73 with a diameter identical to the diameters di and d 2 and an angular development, around the respective axis 73, slightly greater than 180 °, it being understood that each end piece 70 tends by elasticity to close from this position, on the one hand, and can also be brought by elastic deformation to a conformation in which it opens over an equal distance at di or d 2 measured parallel to axis 72.
- the spacer 68 can be clipped either on two wires 65 of neighboring bank, or under two wires 66 of neighboring bank, and maintain between them the mutual spacing l 7 or l 8 respectively desired, as the show Figures 3 and 6 respectively.
- each end piece 70 is made up, as shown in FIGS. 4 and 5, of two parts 76 and 77 each of which defines a section of the inner peripheral face 75 and which are mutually symmetrical with respect to the plane 74, being mutually spaced , perpendicular to the plane 74, by a distance l 10 greater than the diameters di and d 2 but preferably approximately equal to these.
- a distance l 10 greater than the diameters di and d 2 but preferably approximately equal to these.
- the end piece 70 is immobilized respectively on the wire 65 or under the wire 66 in a position in which the wire 69 is placed in the extension of the wire 66 in question or 65 thread question, respectively.
- the end pieces 70 can also be snapped onto any point of a wire 65 or 66.
- the wire 69 of which may have a length different from l 9 is used to wedge an elementary trellis 64 relative to the wall 3 or to the partition 4, it is not naturally snapped onto a wire 65 or under a wire 66 only by one of its end pieces 70, the other end piece serving as a stop on the wall 3 or the partition 4, encountering a sliding of the elementary trellis 64 in question, and more generally of the lattice 63 as a whole on the main floor 2.
- each wire 65 has at its two ends a flat front face 66 flush with a respective edge wire 66, and each wire 66 has at its two ends a respective flat front face 79 flush with a respective edge wire 65, the front faces 78 and 79 being perpendicular to an axis 80, 81 of the respective wire 65, 66.
- the trellis 63 thus formed by the elementary trellises 64, or otherwise constituted, cooperates with the bases 23 of the pads 21 to retain the latter against sliding on the floor 2, in a rigorous relative position such that each stud 21 is coaxial with a respective node 16 crossing between two joint lines 14, 15 of the raised floor 5 to be produced.
- the trellis 63 is arranged on the floor 2 so that a cross 82 between a wire 66 and a wire 65 is placed along each axis 19 of the raised floor 5 to be produced, and each base 23 present in its lower edge 28 of the cutouts 83 allowing it to overlap commonly, when it is fully disposed above an elementary trellis 64, three neighboring wires 65 and cutouts 84 allowing it to be anchored in the manner of a bayonet mount on three neighboring wires 66 while the elementary trellis 64, by the wires 65, and the base 23, by its lower edge face 28, between the cutouts 83 and 84, lie flat on the main floor 2.
- the cutouts 83 arranged in the lower edge face 28 of the base 23 have, when this base 23 is developed flat as in FIG. 7, a simply rectangular shape, defined by a bottom 85 parallel to the edge face 28 and spaced from the latter by a distance h 8 approximately equal to the diameter di of a wire 65 but preferably slightly greater than the latter, and by two planar side faces 86, mutually parallel, perpendicular to the main faces 26 and 27 as if the bottom face 85 and connecting the latter to the edge face 28.
- the cutouts 83 are here only five in number, the slot 32 existing between the edge faces
- each cutout 84 has a branch 87 parallel to the edge faces 30 and 31 as well as to the axis 19, and a branch 88 in turn parallel to the edge face 28 and extending in the direction 40 to from branch 87.
- each cutout 84 has a bottom face 89 parallel to the edge face 28 and situated at a distance hu from the latter substantially equal to the sum of the diameters di and d 2 but slightly greater to the latter, and an upstream side face 90, with reference to the direction 40, connecting the bottom face 89 to the edge face 28 perpendicularly to the latter; the faces 89 and 90, as well as the other faces delimiting the cutout 84, are moreover perpendicular to the main faces 26 and 27 of the base 23.
- the bottom face 89 is connected to another flat side face 91 like the face 90, parallel to the latter and placed opposite it.
- This flank face 91 connects the bottom face 89, in the direction of approximation with respect to the edge face 28, to a flat face 92, parallel to the faces 89 and 28 and placed opposite the face 89; this face 92 is spaced from the edge face 28 by a distance h i2 approximately equal, but preferably slightly less, to the distance h 9 or to the diameter di of the wires 65.
- This face 92 itself connects upstream, with reference to the direction 40, the side face 91 to a side face 93 flat and oriented like the face 91, that is to say placed opposite the face 90; this flank face 93 connects the face 92 to the edge face 28.
- each of the cutouts 83 is placed approximately under a central zone of the recesses 37 or under a zone of the center edge 29 between two consecutive recesses 37, and that each cutout 84 is located under an area upstream of a recess 37, or immediately downstream of such a recess 37, which avoids too much weaken the base 23 by the presence of the recesses 37 and the cutouts 83 and 84.
- the cuts 83 and 84 are dimensioned in the circumferential direction, as a function of the diameters di and d 2 of the wires 65 and 66 as well as of the diameter Di and the length l 5 on the side of a mesh, in a manner which can be calculated but also determined empirically, without difficulty, so that each base 23 can be fixed on an elementary trellis 64, or astride two elementary trellises 64, by bringing it down so that its axis 19 coincides with the crossing 82 and that the cutouts 84 can come to engage by their branches 87, vertically, on the three wires 66 concerned, while the cutouts 83 as well as the slot 32 come to engage on the wires 65 concerned, until the 'base 23 comes to rest flat on the main floor 2 by its lower edge face 28 between the cutouts 83 and 84.
- the dimensions and positions of the cutouts 83 and 84 in the circumferential direction are further such as after s this movement, it is possible, by a rotation of the base 23 in the opposite direction to the direction 40 around the axis 19 then coinciding with the crossing 82, cause the cutouts 84 to engage by the branches 88 around the wires 66 concerned and anchor on them in the manner of a bayonet mount, which immobilizes the base 23 on the elementary trellis 64 or on the two elementary trellises 64 neighbors, respectively, that is to say on the lattice 63 taken as a whole.
- the letters “A” are assigned to “M”, in order, respectively, at the junction between the underside of edge 28 and edge 30, defining the slot 32 on one side thereof, to the cut that is closest to it, namely a cut 84, to the next cut from edge 30 to edge 31, namely cut 83, and so on cutouts 84 and 83 succeeding each other until the junction between the underside of edge 28 and edge 31 defining the slot 32 opposite edge 30, the letter “M” being assigned to this function, the base 23 occupies, after engagement of the branches 88 of the cutouts 84 with wires 66, the position illustrated in FIG. 2, where the letters "A" to "M".
- Each base 23, that is to say each stud 21, can thus be put in place with precision with a view to the subsequent laying of the slabs 6 and 7.
- each base 23 flat, by its lower edge 28, on the main floor 2 between the wires 65 and 66 provides in itself sufficient stability to each pad 21, it is also possible to dispense with 'a bayonet socket between each base 23 and the trellis 63, in which case the cutouts 84 are given a shape similar to that of the cutouts 83 except that their height h ⁇ 2 is kept.
- This variant has not been illustrated but can easily be deduced by a person skilled in the art from an alternative embodiment of the studs which will be described later, in particular with reference to FIG. 15.
- These flexible elongate members can be fixed by means of flexible collars 94 of known type, on the wires 65 and / or on the wires 66 and in particular at the crossing of these wires, between a determined point 92 which may for example consist of a connection box, fixed to the wall 3 or have any other shape, and a point 93 located inside the passage 22 of a stud 21, in which the member 91 enters through the slot 32 so as to be accessible by the corresponding opening 20 between the slabs 6 or the slabs 6 and 7, with a view to making connections on demand; the seals 92 and 93 could also be located one and the other inside a respective stud 21. Under these conditions, the installation of a raised floor 5 can be carried out by the succession of the following steps.
- a first step consists, after carrying out the necessary location, to install the trellis 63, or to install and assemble the elementary trellises 64 mutually, on the main floor 2 in the required position, such that crosses 82 between wires 65 and 66 coincide with the vertical axes 19 of the nodes 16 defined by the joint lines 14, 15 between the slabs 6, 7 of the raised floor 5 to be produced, and to wedge the trellis 63 thus installed, it is produced relative to the wall 3 and to the partition 4 .
- a respective shim 42 is then positioned on sub-groups 52 of steps 39 suitably chosen from each group 38, and the shims 42 thus placed in the marquee 24 of the stud 21 are placed on all of the shims.
- the studs 21 are then finished and the tiles 6, 7 can be placed, by their corner zones such as 13, on the upper edge faces 34 of the different capitals 24, leaving open the openings 20 which, for some, thus deliver access to a termination point 93 of a flexible longilinear member 91.
- openings 20 also allow the introduction and the positioning, between the upper edge faces 34 of certain capitals 24 and the lower face such as 9 of the slabs 6,7, of shims which may be necessary to precisely adjust the level of some of these slabs 6, 7 and thus ensure perfect coplanarity of their upper faces despite possible flatness defects of the main floor 2, without it being necessary to remove the slabs for this purpose.
- the corner zones such as 13 of the neighboring slabs 6, 7 which mutually lock together are mutually locked to delimit an opening 20, without closing it, by means of a key 95, one non-limiting example of which is embodied is shown in FIGS. 8 to 11.
- these keys 95 are placed inside the corresponding passage 22 before the installation of the tiles, but they are not made to cooperate with the latter in order to possibly lock them only after their installation. .
- each key 95 has the shape of a flat, horizontal crown and axis 19 when in use to mutually lock the slabs 6, 7, position in which it will be described.
- This ring 95 is defined respectively upwards and downwards by a flat face 96, 97 essentially of revolution around the axis 19 to which this face 96, 97 is perpendicular, and the faces 96, 97 are mutually connected towards the axis 19, by an inner peripheral face 98 of annular revolution around this axis 19, delimiting a coaxial orifice 117 of the crown.
- This face 98 has a diameter D 3 less than a few centimeters in diameter D 2 but nevertheless sufficient to allow the passage of a hand through the orifice 117, in particular for making connections on the flexible elongate member 91 in the case a corresponding stud 21 with a point 93 or introduce and manipulate any shims for fine adjustment of the level of the slabs 6, 7.
- the diameter D 3 can be 10 cm, this figure being given by way of nonlimiting example.
- the inner peripheral face 98 may possibly be hollowed out three notches 99, regularly distributed angularly around the axis 19, which can be used to facilitate a drive of the key 95 in rotation on itself around the axis 19 in view of its fixing under the slabs 6, 7, under the conditions which will be described later.
- the faces 97, 98 of the key 95 are connected to each other by an outer peripheral face 100 cylindrical of revolution around the axis 19 with a diameter D 4 greater than the diameter D 2 but substantially less than the diameter Di, and for example 124 mm, this figure being given by way of nonlimiting example.
- the key 95 has integrally, projecting from this outer peripheral face 100, distributed in two diameters oriented perpendicular to one another, four teeth 101 each of which has approximately, when viewed in plan, the shape of a rectangular trapezoid whose large base coincides with the outer peripheral face 100 and whose oblique side is turned in the same circumferential direction 114 for all the teeth 101, the direction 114 can be confused with the direction 40 or be opposed to it.
- each tab 102 has an angular development “ ⁇ ” less than half of the beta angular development of each tooth 101 in its zone furthest from the axis 19, which angular development “ ⁇ ” is much less at 45 ° and for example of the order of 20 °.
- each leg 102 ends towards the axis 19, by its zone 105, at a distance R 3 from this axis at least equal to half. of the diameter D 4 of the outer peripheral face 100 of the key 15, while being less than the distance R 2 .
- This movement is possibly accompanied by a refocusing of the key 95, of which, then, a radially outer part of the face 96 remains attached to the lower faces such as 9 of the slabs 6 and 7 and of which a radially inner part protrudes towards the axis 19 inside the opening 20, forming around the latter, at the level of the lower faces such as 9, a continuous annular rim 106 around the orifice 117.
- the legs 102 reaching as close as possible to the axis 19 at the aforementioned distance R 3 thereof, leaving between them the opening 20 and the orifice 117 completely free.
- the key 95 can receive a plug 107 for closing the opening 20 and the orifice 117, which plug 107 is advantageously retained in an integral but removable manner, for example by magnetization, on the rim 106.
- the plug 107 may have, as illustrated, the shape of a simple washer defined by a lower face 108 flat support flat on the rim 106, coplanar with the lower faces such as 9 of the slabs 6, 7, an upper face plane 109 spaced from the face 108 by a distance e 3 equal to the distance e 4 mutually separating the upper faces and lower of a slab 6, 7, and by a cylindrical edge 110 of revolution around the axis 19 with a diameter D 5 approximately equal to the diameter D 2 although slightly smaller than this, for example of the order of 1 or 2 mm, in order to keep the plug 107 removable.
- a joint can be provided between the edge 110 and the concave edge area 17 of each of the slabs 6, 7, in the same way as between the lateral faces 12 of the slabs, as indicated above
- gripping means for a member facilitating the removal of this plug 107, for example in the form of a coaxial blind hole, tapped 111.
- plug 107 corresponds to a stud 21 corresponding itself to a point 93 of the end of a flexible long member 91, this plug 107 can be easily removed to allow connections between the flexible long member 91 and a device located above the raised floor 2.
- a plug 107 may itself include means for connecting an appliance located above. above the raised floor 5 on the flexible elongate member 91 thus leading to the corresponding stud 21.
- a raised floor 5 thus produced therefore allows the desired connections to be made as soon as it is installed, in practice as desired at each of its studs 21, that is to say by offering wide possibilities for distributing the connections; in addition, if flexible elongated members 91 are provided on standby, ending at points 93 located under some of these studs 21, it makes it possible to make connections to these flexible elongated members 91 on request, while offering in the expectation of a homogeneous appearance, of which no unused connection socket block breaks the harmony.
- FIG. 12 a mode of cooperation different from that which has just been described between the base 23 of a stud 21, moreover identical to what has been described. , and a trellis, itself otherwise identical to what has been described.
- This mutual spacing of two neighboring wires 65 or 66, measured between the axes 80 and 81 of these neighboring wires, corresponds to an inner dimension of the meshes 67 which is smaller, by the value of the diameter of the wires 65 or
- the base 23 can be produced as previously described by bending a sheet, but it is stripped of the cutouts 83 and 84 in its lower edge face 28 which, thus , rests entirely flat on the main floor 2.
- its outer peripheral face 26 has a diameter D 6 substantially equal to In, so as to be able to fit coaxially in a mesh 67, between the two wires 65 and two wires 66 delimiting the latter, coming into contact with each of these wires so as to be immobilized by the mesh 67 against any sliding with respect to the trellis and to the main floor 2.
- this base 23 bears integrally, in the immediate vicinity of its lower edge face 28 and in radial projection , with reference to the axis 19, on its outer peripheral face 26, four flat legs 113 arranged according to two perpendicular diameters and having in plan a shape for example in isosceles trapezoid narrowing in the direction of a distance from the axis 19.
- each tab 113 has dimensions such that by orienting the base 21 so that the diameters in question coincide with the diagonals of a mesh 67, it is possible to engage the stud 23 in the mesh 67 until it comes into contact with the main floor 2 by its lower edge face 28 then, by rotating the stud 23 through 45 ° around its axis 19, bring two of the legs 113, diametrically opposite , under the two wires 66 delimiting the mesh 67 and thus immobilizing these two tabs 113 by pinching between these wires 66 and the main floor 2; the other two legs 113 are preferably positioned parallel to the axis 19, in a manner easily determinable by a person skilled in the art, so that they are then above the two wires 65 delimiting the mesh 67 and coming into contact with these two wires 65 from above so that the base 23 is immobilized relative to the trellis 63 in the height direction, by pinching the latter between the legs 113.
- the position of the base 23 illustrated in FIG. 12 corresponds to this position of retention by engagement of the lugs 113 respectively on and under the wires 65 and 66 delimiting the mesh 67 in which this base 23 is engaged. It will be observed that it is possible to use, for carrying the slabs 6 and 7 of the same raised floor 5, studs 21 whose base 23 cooperates with the trellis 63 as described with reference to FIGS. 1 to 11 and studs, the base 23 of which cooperates with the same trellis 63 as described with reference to FIG. 12. Thus, for example, when the dimension and the expected load of the slabs 6 and 7 supported in their corner areas such as 13 by studs 21, the base 23 of which cooperates with the trellis 63 in the manner described with reference to FIGS. 1 to 11, require support for slabs 6 and 7 in other zones, this support can be provided by studs 21, the base 23 cooperates with the trellis 63 as described with reference to FIG. 12.
- FIG. 13 there have been illustrated respective variants of the elementary trellises 64 constituting the trellis 63, studs 21, slabs such as 6 and plugs 107, it being understood that, if necessary with modifications coming within the normal capacities of a person skilled in the art, in particular in terms of dimensions, these variants could be substituted independently of one another for the embodiments of the same components, described with reference to Figures 1 to 12.
- FIGS. 13 to 20 have great similarities with the embodiments previously described with reference to FIGS. 1 to 12, the same reference numerals have been used to designate the components which are correspond as well as corresponding parts of these different components, and we will limit the rest of the description, essentially, to the differences that these components present, in their variant, in comparison with the embodiments previously described.
- a trellis 63 is illustrated, consisting of the juxtaposition, on a main floor 2, of mutually identical elementary trellises 64 whose rods or wires 65, 66 define square meshes 67 whose sides have the same length I 5 which in this example is 20 cm.
- the elementary lattices 64 have, for example, respective dimensions of 1 m by 2.20 m, and are connected to each other by spacers not shown, in the same way as the elementary lattices 64 constituting the lattice 63 illustrated in FIG. 1 ; these spacers maintain a mutual spacing l 7 , l 8 equal to l 5 between the various elementary trellises 64.
- the slabs 6 retain the square plane previously described, except that the sides of the square have a length that is not slightly referenced less than 600 mm, and for example of the order of 559 mm, so that the slabs 6 are mutually contiguous along straight lines 14, 15, intersecting at right angles and spaced apart by a distance l 6 here equal to 600 mm.
- the slabs 6 have in each of their corner zones 13 a notch 18 defined by a localized concave zone 17 of their edge 11, this localized concave zone 17 being generally cylindrical of revolution about a vertical axis 19 which passes through the intersection of two junction lines 14 and 15 and, in this case as in the case described with reference to FIG.
- each pad 21 is made in one piece by winding a side of metal sheet, for example of galvanized steel sheet with a thickness of order of 8 or 6 tenths of a millimeter, illustrated in FIG. 15, and thus presents a certain analogy with the base 23 of a stud described with reference to FIGS. 1 to 13.
- the stud 21 this time considered as a whole has, between two main faces 26, 27 mutually parallel, of generally rectangular shape when the stud 21 is flat and intended to respectively constitute an outer peripheral face 26 and an inner peripheral face 27 of the stud 21, one and the other cylindrical of revolution around the axis 19 with a diameter Di which is for example 34 cm in the example illustrated for the inner peripheral face 27, two edge faces 28 and 29 flat, perpendicular to the faces 26 and 27 and mutually parallel, and two edge faces 30 and 31 also flat, perpendicular to the faces 26 and 27 and mutually parallel but perpendicular to the edge faces 28 and 29.
- Di which is for example 34 cm in the example illustrated for the inner peripheral face
- two edge faces 28 and 29 flat, perpendicular to the faces 26 and 27 and mutually parallel
- two edge faces 30 and 31 also flat, perpendicular to the faces 26 and 27 and mutually parallel but perpendicular to the edge faces 28 and 29.
- the edge faces 28 and 29 are mutually spaced by the distance or height H which must separate the raised floor 5 from the main floor 2, this height H may vary slightly from one stud 21 to another and being adapted in situ in a manner to be described later.
- the edge face 28 continues to constitute a lower bearing face of the stud 21 flat on the main floor 2 on either side of the wires 65 and 66 of the elementary lattices 64, that the stud 21 overlaps by cutouts this time eight in number and mutually identical 83, having a generally rectangular shape at the faces 25 and 26 with a height hn calculated as indicated with regard to the cutouts 84, and for example of the order of 11 mm.
- the cutouts 83 are distributed equally by pairs of neighboring cutouts 83 having along the edge 28 when the stud 21 is seen flat, as illustrated in FIG. 15, a respective width of of the order of 6.2 mm for a mutual spacing of the order of 47.8 mm between two cutouts 83 of each pair, while the closest cutouts 83 belonging to two mutually neighboring pairs are mutually spaced 206 , 8 mm, these figures being given by way of nonlimiting examples and corresponding to a distance Li, between the two edges 30 and 31, of 1 m, itself corresponding to a perimeter L 2 of the stud 21 of the order 1.005 m.
- the lower edge 28 of a stud 21 produced from a single piece by winding a metal sheet could have the alternation of cutouts 83 and 84 described with reference to Figure 7, allowing this pad 21 to cooperate with the wires 65 and 66 in the manner of a bayonet mount.
- the studs 21 thus produced in one piece carry the corresponding slabs 6, or the custom slabs not shown, directly by their upper edge 29, on which, commonly, four slabs 6 are supported flat by their lower faces 9 in their indented corner areas 13.
- Intermediate studs 204 of similar design but which may have a diameter less than Di can be provided in addition to support the slabs 6 and the custom slabs for example in their center and / or in the middle of their sides.
- These intermediate pads 204 are advantageously provided, in their lower edge corresponding to the lower edge 28 of the pads, with four cutouts similar to the cutouts 83 and arranged in two vertical, axial, mutually perpendicular planes, to allow each intermediate pad 204 to be placed on horseback on a wire 65 or 66 or on a spacer, or on two wires or spacers at their crossing as shown in FIG. 13.
- the slabs 6 are produced in stamped steel sheets, of a thickness e 4 , measured between their upper face 8 and their lower face 9, equal for example to 2.5 mm, but this embodiment as well as this thickness are only examples not limiting and, in particular, any type of slab could cooperate with a stud 21 according to the variant described with reference to Figures 14 and 15 at the same t itre that with studs 21 having the design described with reference to Figures 1 to 12.
- each slab 6 has a stamped portion which forms a respective rim 114 which projects downwards relative to the upper face 6, to which an upper horizontal face 115 of this rim 114, coplanar with the lower face 9 of the slab 6, is connected by a shoulder 116 having essentially the shape of a cylinder of revolution around an axis which merges with the axis 19 when the raised floor 5 is produced.
- the shoulder 116 has a radius R 4 less than half of Di, so that the projection that the flanges 114 form, downward, relative to the underside 9 of the slabs 6 lodges inside the corresponding stud 21; for a value of 34 cm of Dl, this radius R 4 is for example of the order of 115 mm.
- each flange 114 is delimited by an inner peripheral face 117 also cylindrical of revolution around an axis which merges with axis 19, with a radius R 5 less than R 4 and for example of the order of 105 mm for the values indicated above of Di and R En circumferential direction with reference to the axis coinciding with the axis 19, each flange 114 is preferably discontinuous and, in particular, has two circumferentially extreme interruptions 118, which complement each other from one slab 6 to the other, and an interruption circumferentially central 119 having a circumferential dimension twice that of each of the interruptions 118; by way of nonlimiting examples and for the values indicated above of R 4 and R 5 , the circumferential dimension ⁇ of each interruption 118 can be of the order of 13 mm and the circumferential dimension ⁇ 2 of the interruption 119 of the order of 26 mm
- the notches 18 complement each other to form around each axis 19 a vertical opening 20 delimited in the direction of a distance from this axis 19 by the inner peripheral face 117 of the corresponding flanges 114, which thus complement each other to form all around the opening 20 a rim, admittedly discontinuous but formed of sections regularly distributed angularly around of the axis 19 and interrupted either by the interrupts 119, or by pairs of mutually adjacent interrupts 118.
- this opening 20 is located above the continuous, continuous passage 22 of the corresponding stud 21, the slot 32 of which allows a flexible longilinear member to enter and leave the passage of the 22 under the conditions previously described with reference to Figures 1 to 12.
- plugs 107 and crowns 95 provided for this purpose have been provided in the embodiment described with reference to FIGS. 1 to 12, a cap or plug 107 suitably shaped to provide a mechanical connection between the slabs 6 in question , which will now be described essentially with reference to the position which it occupies when it cooperates with the slabs for this purpose.
- the plug 107 has the general shape of a disc, similarly to the plug 107 described with reference to FIGS.
- the plug 107 can be inserted with a certain radial clearance between the shoulders 116 of the notched corner areas 13 of the slabs 6.
- the plug 109 has the same thickness e 4 as a slab 6 between its faces 8 and 9, so that when it lies flat by its lower face 108 on the upper faces 115 of the flanges 114 , its upper face 109 is situated coplanarly with the upper faces 8 of the neighboring slabs 6.
- the plug 107 produced for example also by stamping a sheet of steel, is provided peripherally, directly by stamping, with four hooks 124 projecting from its underside 108 and intended to engage either in a respective interrupt 119, or in a respective pair of mutually adjacent interrupts 118, when the plug is put in place
- each hook 124 has the general shape of a square comprising in particular a flat wing 120, made up of respective parts of the upper face 109 and of the lower face 108 offset towards the bottom, with respect to the respectively corresponding face 109, 108, by a distance substantially equal to twice the thickness e 4 , so that the part of the upper face 109 which corresponds to the hook 124 is offset by a distance substantially equal to e 4 compared to the rest of the underside
- the wing 120 has a dimension at most equal to ⁇ 2 or twice ⁇ i, which allows the aforementioned introduction of the hook 124 in a respective interrupt 119 or in a respective pair of interruptions 118.
- the wing 120 is released on all sides, except in a circumferential direction 121 which is the same for all the hooks 124, and is connected by an end zone in this direction 121 to the rest of the plug 107, by a wing 122 perpendicular to the wing 120 and the rest of the plug 107 and situated along a non-illustrated average plane including the axis 19.
- a notch 123 for example of approximately rectangular plane, offset angularly with respect to the hooks 124, and by example located at the same angular distance from two neighboring hooks 124, so that when these hooks 124 are engaged respectively with interruptions 119 or pairs of interruptions 118 of the flanges 114, this notch 123 coincides with a pair of interruptions 118 or with an interruption 119 and thus allows the passage of a slender flexible connection member.
- the break 123 may have the same circumferential length ⁇ 2 as a break 119, while each hook 124, and more precisely its wing 120, is preferably given a circumferential dimension much less than ⁇ , and for example of the order of ⁇ l ⁇ or even less than ⁇ i.
- FIG. 17 Also illustrated in FIG. 17 is the possibility of making, when it is a question of mutually connecting only two mutually neighboring slabs 6, a half-plug 128, delimited by the equivalent of half the edge 110 and by a edge 125 which is located along a plane including the axis 19 and preferably located, with respect to the nearest hook 124, so that the edge 125 comes to be placed coplanarly with the planar lateral faces 12, mutually coplanar, of the slabs 6 between which the plug is intended to provide the connection when the two remaining hooks 124 engage with respective interruptions 118 of the respective flanges 114 of the slabs 6 in question.
- the positioning, for this purpose, of the edge 125 relative to the hooks 124 is within the normal abilities of a person skilled in the art.
- this mode of connection between neighboring slabs 6 is independent of the design of the studs 21 and of their mode of cooperation with the trellis 63, that is to say can be used whatever the mode embodiment chosen for the studs 21 according to the invention and whatever the mode of cooperation of the latter with the trellis 63.
- the embodiment of a stud 21 which has just been described with reference to FIGS. 14 and 15, in particular, proves to be particularly advantageous in that it lends itself to being produced in situ, with a height H definitely set for each pad 21 to the value 5 required to give the desired coplanearite and horizontality to the upper faces 8 of the slabs 6 or 7 and to the upper faces 109 of the plugs 107.
- FIGS. 21 to 27 there is illustrated in FIGS. 21 to 27, to which reference will now be made, an embodiment of a machine 126 intended to be brought successively to each location of a pad 21 to be placed, for cutting this pad 21 at the height H required from a standardized stud 21 have the one-piece design described with reference to FIGS. 14 and 15, with an initial height standardized in excess with respect to a planned range of values of H, or corresponding to a maximum limit of 5 this range of values.
- this machine 126 comprises a rolling chassis 127, formed of rectilinear longitudinal members 128 horizontal, mutually parallel and mutually symmetrical with respect to the axis 19, and by a rectilinear cross member 129 connecting mutually, in an integral manner, the two longitudinal members 128 to which it is perpendicular.
- the two longitudinal members 128 are mutually spaced by a distance greater than the inside diameter Di of a stud 21, increased by twice the thickness of the sheet metal constituting this stud, while the cross member 129 is spaced from the axis 19 of a distance greater than half the internal diameter D !
- the cross member 129 is connected to the side members 128 at a first end of the latter, which are placed in overhang relative to the cross member 129, the same side thereof, to a respective second end.
- each spar 128 In the immediate vicinity of its first end, each spar 128 carries, for free rotation about the same axis 131 parallel to the cross member 129, a respective wheel 132 while in the immediate vicinity of its second end, each of these spars 128 carries, with free rotation around the same axis 133 parallel to the axis 131, a respective wheel 134.
- the wheels 132 and 134 are dimensioned so as to allow the rolling of the chassis 127 on the main floor 2 and the crossing, without difficulty, the wires 65 and 66 of the elementary lattices 64 resting thereon, or alternatively spacers connecting these elementary lattices to form the lattice 63, but they occupy a relative position such that, when the axis 19 of the machine 126 coincides with an axis along which a stud 21 must be deposited on the trellis 63 and on the main floor 2, these wheels 132 and 134 wedge themselves on the wires 65 and 66 of a trellis llis elementary 64 or on the spacers mutually connecting two of these elementary trellises 64.
- the relative positioning, for this purpose, of the wheels 132 and 134 is within the normal abilities of a person skilled in the art, taking further into account the stability requirements of the machine 126. It will be observed that this arrangement makes it possible to dispense with providing any brake on the wheels 132 and 134, it being understood that such a brake could also be provided in addition
- the chassis 127 thus formed has a vertical mean plane of symmetry 135 including the axis 19, which plane 135 also constitutes a mean plane of symmetry for the rest of the machine 126 and corresponds to the cutting plane of FIGS. 22 and 23.
- the cross member 129 carries integrally, projecting upward, a vertical slide 136 having, when viewed in section through a horizontal plane as is the case in FIG. 25, a section in C , open towards axis 119.
- a post 137 also disposed along the plane 135 and having meanwhile, when seen in section through a horizontal plane, a rectangular section such that, while forming a projection outside the slide 136 towards the axis 19, it leaves on either side, in the direction of a distance from the plane 135 but inside the slide 136, a continuous vertical cavity 138.
- the post 137 carries, at free rotation around respective axes 139 perpendicular to the plane 135, rollers 140 for guiding the vertical translation at l 'interior of the slide 136 by rolling on internal vertical faces thereof.
- the detail of such an assembly falls within the normal aptitudes of a person skilled in the art, and therefore does not require further description.
- each cavity 138 near a free upper end 150 of the slide 136, the latter carries free rotation about the same axis 141 perpendicular to the plane 135 a pulley with respective groove 142 which deviates at 90 ° a respective flexible link, such as a rope 143 which, at a level lower than that of the axis 141, has a first end 144 fixedly attached to the post 137, inside the cavity 138, then follows an ascending vertical path inside this cavity at from the lower end 144, engages in the groove of the corresponding corresponding pulley 142 then follows a horizontal path in the direction of a distance relative to the axis 19 to a second end 145 placed at the outside of the slide 136, offset from the latter in the direction of a distance from the axis 19 and passing through the slide 136 by a respective vertical slot 146.
- a respective flexible link such as a rope 143 which, at a level lower than that of the axis 141, has a first end 144 fixedly
- the ends 145 of the two ropes 143 thus arranged respectively on either side of the post 137 inside the slide 136 are mutually connected by a pull handle 205, which is oriented perpendicular to the plane 135, which it overlaps, and makes it possible to apply to the two links 143 a pull in the lifting direction of the post 137 relative to the slide 136 or, if it is released, allows the post 137 to descend inside the slide 136 to a lower limit position q which will be described later and constitutes the position occupied by the post 137 during the fitting of a stud 21 on the wires 65 and 66 or on the spacers connecting two elementary trellises 63 and on the main floor 2.
- the post 137 occupies an upper limit position which is obtained by pulling on the handle 205 from the lower limit position and in which the post 137 can be retained by any appropriate locking means , and for example by means of a localized extra thickness of each link 143, which localized extra thickness 147 can pass through the slot 146 by an enlarged part 148 thereof when the corresponding link 143 is placed in a determined position, in the direction of the height inside the slot 146, and can abut on the edges of the slot 146, from outside the slide 136, when the rope 143 and the extra thickness 147 are offset with respect to the widened part 148 of the slot 146, the localized excess thickness 147 then forming a stop preventing the descent of the post 137 to its lower limit position, as will readily be understood by a person skilled in the art.
- the widened part 148 of the slot 146 is placed at a level lower than the upper horizontal level of the pulleys 142, while the slot 146 moreover has an area along this upper horizontal plane, so that the ropes 143 have a natural tendency to come occupy their position corresponding to the stop of the corresponding localized excess thickness 147 on the edges of the slot 146.
- the post 137 forms an upward projection, out of the slide 136, above which it has a free upper end 149 which, in both of the abovementioned limit positions, is preferably placed with respect to the main floor 2 at a level facilitating manual interventions, and for example at a height of the order of 1.20 m at a 1, 40 m from the main floor 2.
- the post 137 Downwards, the post 137 has a lower end 151 which, in the lower limit position, can rest on a wire 65 or 66, or on a spacer, or on the main floor 2 or be placed a short distance above the wires 65 and 66 of the main floor 2 while, in the upper limit position, it is placed at a distance from the main floor 2 greater than a predetermined maximum limit value of the height H of a p lot 21 so as not to risk coming into contact with the stud 21 placed on the main floor 2 and the wires 65 and 66 or the spacers when the carriage 127 rolls after this positioning.
- the post 137 may have near this lower end 151 a cutout allowing it to bypass unhindered the crosspiece 129, in a manner which is easily understandable by a skilled person and does not will not be described further.
- the post 137 carries in an integral manner, in cantilever, a respective crown 153, 154, 155, having an outer peripheral face 156, 157, 158 cylindrical of revolution around the axis 19 with a diameter substantially equal to the inner diameter D ! of a stud 21 so that each of the faces 156, 157, 158 can guide such a stud 21 to vertical, coaxial sliding, by cooperating for this purpose with the inner peripheral face 27 of this stud.
- each of the external peripheral faces 156, 157, 158 is delimited by connection with a respective flat edge, annular of revolution around and perpendicular to the axis 19, only the bottom edge 159 of the lower crown 156 and the upper edge 160 of the upper crown 157 being identified in FIGS. 21 and 22 insofar as the first is placed in the same horizontal plane not referenced as the lower end 151 of the post 137 while the second is located along the same horizontal plane not referenced as the free upper end 149 of this post 137, while the respective positions of the other edges are indifferent when the crowns 153, 154, 155 have sufficient rigidity and are connected in such a way sufficiently rigid to the post 137.
- the lower edge 159 of the lower ring 153 is preferably provided with notches 152 allowing it to rest flat on the main floor 2 by fitting onto the wires 65 and 66 or the spacers in the lower limit position of the post 137.
- these notches 152 are angularly distributed around the axis 1, with reference to the angular position of the post 137, in the same way as the cutouts 83 of the lower edge 28 of a stud 21 with reference to the angular position edges 30 and 31 delimiting the slot 32, and have a shape similar to that of these cutouts 83.
- the relative positioning stability of the crowns 153, 154, 155 is reinforced by three rectilinear, vertical tubes, regularly distributed angularly around the axis 19, arranged inside the three rings 153, 154, 155 and secured to each of them for example by welding, each of these tubes 161 extending from the lower edge 159 of the lower ring 153 at the upper edge 160 of the upper crown 154.
- One of these tubes 161 is arranged along the plane 135, opposite the post 137 relative to the axis 19 while the other two are placed in positions mutually symmetrical with respect to the plane 135, respectively on either side of it.
- the lower ring 153 and the intermediate ring 155 are rigidly connected to each other, under the same conditions, by three other tubes 162 which, like the tubes 161, are rectilinear, parallel to the axis 19 and arranged at the inside of the crowns 153 and 155 to which they are secured, for example by welding.
- these tubes 162 extend only from the level of the lower edge 159 of the lower crown 153 to the same level below that of the crown 154, level at which they have a respective free upper end 163.
- the tubes 162 are thus inserted circumferentially between the tubes 161, one of these tubes 162 running along the post 137, so that, considered as a whole, the mutually alternating tubes 161 and 162 are regularly distributed angularly around the axis 19.
- each tube 162 carries integrally, internally, a threaded sleeve 164 with vertical axis 165, the vertical axes 165 respecting the same regular angular distribution around the axis 19 as the tubes 162.
- a threaded rod In each sleeve 164 is screwed coaxially a threaded rod
- each threaded rod 166 is mounted for rotation about the axis 165, without the possibility of relative displacement in the direction of the height and retaining only a functional clearance perpendicular to the axis 165, in a respective through hole 170 of a plate 171 the level of which can thus be adjusted relative to the main floor 2, when the post 137 occupies its lower limit position, by rotation of the knobs 167 by orienting it strictly perpendicularly to the axis 19 or, if necessary, by shifting it slightly, angularly, with respect to a strict perpendicularity with respect to the axis 19.
- the plate 171 is perpendicular to the axis 19.
- the plate 171 has a triangular plan shape, particularly visible in FIG. 24, each of the holes 170 and the axes 165 being placed in the immediate vicinity of a corner of the triangle, which allows the plate 171 to move freely between the tubes 161.
- this plate 171 integrally carries a tubular sheath 172 which protrudes upwards and downwards relative to it, between an upper end 173 which, whatever the level at which the plate 171 is placed by adjustment by means of the knobs 167, is offset upward relative to the upper edge 160 of the upper crown 154, and a lower end 174 which, whatever thus the level of the plate 171, is located between the upper ring 154 and the intermediate ring 155.
- the sheath 172 Towards its axis coincident with axis 19, the sheath 172 has an inner peripheral face 175 which is cylindrical in revolution around this axis and by which the sheath 172 guides the relative rotation, around this axis, a coaxial shaft 176 having an upper end 177 and a lower end 178 respectively above the upper end 173 of the sheath 172 and below the lower end 174 thereof.
- the shaft 176 By its lower end 178, the shaft 176 carries a conical pinion 179 which provides a 90 ° bevel gear, with a conical pinion 180 carried integrally by a first end 181 of a horizontal shaft 182 guided in rotation around a horizontal axis 183 perpendicular to the axis of the shaft 176, in a bearing not shown in a gear case 184 that the plate 171 carries integrally between the tubes 161 and 162, downwards, around the pinions 179 and 180.
- This housing has been omitted in Figure 22 for reasons of clarity.
- the axis 182 is disposed substantially along the mean plane 135, on the side of the post 137 and that of the tubes 162 which runs along this post 137, and the shaft 182 traverses right through along the axis 183 of on the one hand this tube 162 and on the other hand the post 137 by a respective vertical light 185, 186 which allows the shaft 182 to go up and down freely, relative to the tube 162 and to the post 137, when adjusting the plate 171 by means of the knobs 167.
- the shaft 182 Opposite its end 181, outside the post 137, the shaft 182 has an end 187 by which it integrally carries a crank 188 for driving the rotation around its axis 183, which is accompanied by a rotation of the shaft 176 around its axis coincident with the axis 19, relative to the sheath 172, to the plate 171 and relative to the integral assembly formed by the post 137, crowns 153, 155, 157 and tubes 161 and 162.
- the shaft 176 carries integrally, in particular with respect to a rotation about the axis coincident with the axis 19, an arm 189 oriented perpendicular to its axis coincident with the axis 19 and placed cantilevered with respect to the end 173 of the sleeve 172 more particularly on one side of this axis, until overlapping the upper edge 160 of the crown 154, without contact with this upper edge 160 whatever the adjustment of the plate 171 and, with it, of the arm 189 in the height direction.
- the arm 189 thus has, opposite an end 190 of connection integral with the shaft 176, a free end 191 situated slightly further from the axis coinciding with the axis 19 than the external peripheral face 157 of the upper crown. 154 is arranged relative to the axis 19 and, near this free end 191, the arm 189 carries downward, to rotation about a respective axis 192, 193 parallel to the axis of the shaft 176 and of the sheath 172, two cutting knobs 194, 195 of a type known in itself for cutting metals and for example made of hard A 60 steel, this example being in no way limiting.
- the axes 192 and 193 and the axis of the shaft 176 and of the sheath 172 are arranged in the same plane not referenced and, in a manner known in itself, the knobs 194 and 195, each of which has the general shape of a revolution disk around a respective axis 192, 193, overlap each other by a respective flat face disposed along a plane 206 perpendicular to the axis of the sheath 172 and the shaft 176, in the immediate vicinity of a respective circular peripheral cutting edge, so that a metal engaged between them perpendicular to a plane defined by their axes 194 and 195 is sheared in passing, by driving the two knurls 194 and 195 in a rotational movement around their axes 192, 193.
- the two knobs 194 and 195 are used, in the context of the present invention, to cut the sheet metal of a stud 21 pre-bent to its final shape but initially having an excessive standardized height, to give this pad the height H adapted to the needs at a determined location on the main floor 2.
- the two cutting knobs 194 and 195 are arranged, as a function of their diameter, that is to say of the diameter of their cutting edge, so that their overlap is immediately outside the vertical alignment of the outer peripheral face 157 of the crown 154, it being understood that means, not shown, can be provided for adjusting the distance of each of the axes 192, 193 relative to the axis of the shaft 176 and of the sheath 172.
- the crown 154 is intended, by its outer peripheral face
- the crown 154 carries projecting in the direction of a distance with respect to the axis 19, in an angularly evenly distributed around this axis, cleats or pairs of cleats 196 supporting the lower edge 28 of the stud 21, these cleats 196 culminating in the same horizontal plane not referenced perpendicular to the axis 19.
- the cleats 196 are distributed angularly, around the axis 19 and with reference to the post 137, in the same way as the cutouts 83 of the lower edge 28 of a stud 21 and dimensioned so as to engage in one, respectively, of these cutouts, in which case each cleat 196 is located at a distance from the upper edge 160 of the crown less than the lower limit value of H, reduced by the depth hn of each d sheet 83.
- the post 137 is dimensioned, perpendicular to the plane 135, so that it is narrower or, at most, as wide as the narrowest slot 32 of a stud 21 achievable by means of the machine, and this over its entire height so that:
- this stud 21 can be engaged by its slot 32 around the free upper end 149 of the post 137 by placing this stud 21 in support by its lower edge 28 on the cleats 196, preferably fitted into the cutouts 83 of this lower edge 28, and that,
- means are provided for retaining the stud 21 during cutting, while its lower edge 28 is supported on the cleats 196, for example in the form of a stirrup 197 suitable for temporarily applying to the stud 21 , by its outer peripheral face 26, a pressure towards the axis 19, respectively on either side of the slot 32, to retain the stud 21 applied firmly on the outer peripheral face 157 of the upper ring 154 by its peripheral face interior 27.
- the stirrup 127 is advantageously mounted in horizontal sliding, perpendicular to the axis 19, on the post 137 in the immediate vicinity of the free upper end 149 thereof and has two flat wings 198 mutually parallel and mutually symmetrical with respect to the plane 135, laterally matching the post 137, and a flat core 199 perpendicular to the plane 135 that it overlaps, this core 199 connecting the two wings 198 on the side of the post 137 opposite the axis 19.
- the core 199 is itself connected to the post 137 by a clamping device comprising for example a stud 201 secured to the post 137 and forming a projection relative thereto, in the direction of a distance from the axis 19, along an axis 200 perpendicular to the axis 19 and located in the plane 135, this stud 201 passing through the part 199 of the stirrup 197 by a coaxial hole not referenced and carrying on the opposite a butterfly nut 202 allowing to apply at will, by rotation, a more or less significant force to the stirrup 197 in the direction of approximation with respect to axis 19.
- a clamping device comprising for example a stud 201 secured to the post 137 and forming a projection relative thereto, in the direction of a distance from the axis 19, along an axis 200 perpendicular to the axis 19 and located in the plane 135, this stud 201 passing through the part 199 of the stirrup 197 by a coaxial hole not referenced
- the wings 198 of the stirrup 197 carry a respective pad 203 of an elastically compressible material, such as a cellular rubber, to apply firmly but without risk of damage to the outer peripheral face 26 of the stud 21 during cutting.
- an elastically compressible material such as a cellular rubber
- the machine 126 which has just been described can be used in a manner which will now be described.
- the machine 126 While the post 137 occupies its upper limit position, the machine 126 is brought, by rotation, to a position in which it is coaxial at the location of a stud 21 to be placed, then the post 137 is left, and all of the components that it carries, descend to the lower limit position in which the lower edge 152 of the lower ring 153 lies flat on the main floor 2 by fitting onto the wires 65, 66 or the spacers , and a stud 21 is placed, having by construction an excessive height, around the outer peripheral face 157 of the upper ring 154, and resting by its lower edge 28 on the cleats 196, which then fit into the cutouts 83 as it is preferred.
- the stud 21 is immobilized, the slot 32 of which is engaged around the post 137, by tightening the butterfly nut 202 and the arm is placed 189, by rotation of the crank 188, in a position in which the axes 192 and 193 are placed in the plane 135 and the cutting knobs 194 and 195 are placed above the slot 32, at a certain vertical distance from the stud 21; in other words, the arm 189 is oriented opposite the orientation illustrated in FIGS. 21 and 22.
- the level of the plate 171 is adjusted, that is to say that of the cutting knobs 194 and 195, so as to place the plane 206 of mutual overlapping of the latter at a vertical distance, relative to the cleats 196, which is equal to the desired height H if the stud 21 rests by its edge 28 on the cleats or at this height H reduced by h ⁇ if the cleats fit into the cutouts 83, which is accompanied by an engagement of the cutting knobs 194 and 195 in the slot 32 of the pad 21.
- each stud 21 in place can be reinforced by means of a bent wire staple overlapping its slot 32 and anchored on either side of it in a respective hole in the sheet metal of the stud, not shown but easily understood by a skilled person.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Floor Finish (AREA)
- Building Environments (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR01/10035 | 2001-07-26 | ||
FR0110035A FR2827890B1 (fr) | 2001-07-26 | 2001-07-26 | Procede de realisation d'un plancher sureleve, et plancher sureleve susceptible d'etre realise par ce procede |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003010400A1 true WO2003010400A1 (fr) | 2003-02-06 |
Family
ID=8865966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2002/002702 WO2003010400A1 (fr) | 2001-07-26 | 2002-07-26 | Procede de realisation d'un plancher sureleve, et plancher sureleve susceptible d'etre realise par ce procede |
Country Status (2)
Country | Link |
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FR (1) | FR2827890B1 (fr) |
WO (1) | WO2003010400A1 (fr) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2079090A5 (fr) * | 1970-02-21 | 1971-11-05 | Central Flooring Ltd | |
WO1987003324A1 (fr) * | 1985-11-22 | 1987-06-04 | Cablefloor (Australia) Pty. Ltd. | Systeme de plancher |
DE3841572A1 (de) * | 1988-12-09 | 1990-06-13 | Hansen Rolf Polymelt Gmbh | Befestigungselement zum halten von fussbodenheizungsrohren an bewehrungsdraehten bzw. auflagegittern |
DE3904345A1 (de) * | 1989-02-14 | 1990-08-16 | Hans Wagner | Installationsbodensystem |
EP0529072A1 (fr) * | 1990-03-30 | 1993-03-03 | Naka Corporation | Panneau de plancher et dispositif d'assemblage de plancher |
JPH09328886A (ja) * | 1996-06-07 | 1997-12-22 | Kokuyo Co Ltd | 二重床 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE96492T1 (de) * | 1988-08-04 | 1993-11-15 | Huang Chien Teh | Kombination eines sockels mit elektrischem steckanschluss. |
-
2001
- 2001-07-26 FR FR0110035A patent/FR2827890B1/fr not_active Expired - Fee Related
-
2002
- 2002-07-26 WO PCT/FR2002/002702 patent/WO2003010400A1/fr not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2079090A5 (fr) * | 1970-02-21 | 1971-11-05 | Central Flooring Ltd | |
WO1987003324A1 (fr) * | 1985-11-22 | 1987-06-04 | Cablefloor (Australia) Pty. Ltd. | Systeme de plancher |
DE3841572A1 (de) * | 1988-12-09 | 1990-06-13 | Hansen Rolf Polymelt Gmbh | Befestigungselement zum halten von fussbodenheizungsrohren an bewehrungsdraehten bzw. auflagegittern |
DE3904345A1 (de) * | 1989-02-14 | 1990-08-16 | Hans Wagner | Installationsbodensystem |
EP0529072A1 (fr) * | 1990-03-30 | 1993-03-03 | Naka Corporation | Panneau de plancher et dispositif d'assemblage de plancher |
JPH09328886A (ja) * | 1996-06-07 | 1997-12-22 | Kokuyo Co Ltd | 二重床 |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 04 31 March 1998 (1998-03-31) * |
Also Published As
Publication number | Publication date |
---|---|
FR2827890B1 (fr) | 2004-10-01 |
FR2827890A1 (fr) | 2003-01-31 |
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