Static structures (e.g. – buildings) – Three-way corner construction – Barrier resting on top of vertical structures; e.g. – walls
Patent
1995-09-29
1998-05-12
Kent, Christopher
Static structures (e.g., buildings)
Three-way corner construction
Barrier resting on top of vertical structures; e.g., walls
521266, 526503, E04B 543
Patent
active
057491887
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a raised floor made up of modular slabs mounted on vertical supports which are separated from each other and which rest on the ground.
2. Discussion of Background and Relevant Information
Raised floors known today are constituted of modular, usually square, slabs which are attached to one another in a horizontal plane and whose tops rest on horizontal supporting plates made up of the upper horizontal heads of vertical supports separated from each other. Each of these supports comprises a lower base fixed to the ground and a vertical bonding element, of fixed or adjustable length, between the lower base fixed to the ground and the upper support head of the slabs.
Up to the present time, slab tops have usually been placed quite simply on the upper support head of each support, their position on said head being determined by upwardly projecting elements held by the upper head of the support. These projecting elements are generally constituted of splinters which, in the case of square or rectangular slabs, are placed at regular intervals at right angles to each other around the vertical support axis, on which said axis the tops of four adjacent slabs merge. The splinters are inserted loosely in demarcated intervals between the lower parts of the slab edges in such a way that the assembly of the adjacent slabs on the support is relatively loose and the resulting floor is therefore not perfectly stabilized.
Another type of known raised floor assembly consists of supports whose heads possess slots into which the edges of the modular slabs are fitted, but the assembly of the adjacent slabs on the support obtained according to this process is also relatively loose, because a certain amount of play needs to be maintained for the purpose of fitting the edges of the slabs into the slots of the supports in order to facilitate assembly and to compensate for any expansion of the slabs. A known example of such an assembly is given in the context of U.S. Pat. No. 5,052,157 filed under the name of DUCROUX et al; another example is constituted by the floor described in German Patent Publication No. 2,107,898 filed under the name of CENTRAL FLOORING LTD. in which the support heads possess a protuberance against which the truncated tops of the slabs rest. Although the amount of play may be reduced in such an assembly, it cannot be completely eliminated for fear of raising the slabs in the event of expansion.
SUMMARY OF THE INVENTION
This invention aims to remedy the disadvantages described above by providing a slab assembly device ensuring a firm hold on these slabs once they are fixed on the upper heads of their supports. For this purpose, the raised floor, whose surface consists exclusively of modular slabs 1 in the shape of a regular polygon, presenting along their sides vertical edges 6 perpendicular to the plate 7 forming the base surface of said slabs 1, sustained at their tops by vertical supports 2 resting on the ground, is characterized in that the upper head 5 of the vertical supports 2 is fitted with radial slots 4 which are usually rectangular and which terminate in the periphery of said upper head 5, the width of said radial slots 4 being so determined as to cause a tightening through vertical fitting into a radial slot 4 of the vertical edges 6, facing each other, said vertical edges 6 belonging to two adjacent slabs 1.
BRIEF DESCRIPTION OF THE DRAWINGS
Non-limitative examples of various embodiments of the invention will now be described with reference to the accompanying drawings in which:
FIG. 1 is a perspective view of the assembly device according to the invention ensuring the maintenance of the square or rectangular slabs on a common support designed to hold four slabs.
FIG. 2 is a vertical section view along line II--II of FIG. 1.
FIG. 3 is a plan view of a square-shaped floor slab.
FIG. 4 is a side-face view of the slab in FIG. 3 as seen from the left of this figure.
FIG. 5 is a perspective view of a variant embodiment o
REFERENCES:
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patent: 4198795 (1980-04-01), Barnidge
patent: 4571200 (1986-02-01), Serna
patent: 4676036 (1987-06-01), Bessert
patent: 4709519 (1987-12-01), Liefer et al.
patent: 4850163 (1989-07-01), Kobayashi et al.
patent: 4914881 (1990-04-01), Spork
patent: 4996804 (1991-03-01), Naka et al.
patent: 5052157 (1991-10-01), Ducroux et al.
patent: 5483776 (1996-01-01), Poppe
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