Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Three-dimensional space-defining
Patent
1997-05-02
2000-07-04
Friedman, Carl D.
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Three-dimensional space-defining
5274519, 52779, 29462, 2989731, 108193, 3122652, A47G 2900
Patent
active
060820691
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a method of assembly for a rigid structure and the resulting rigid structure, for example a bookcase.
The methods utilises square or rectangular panels and chassis in the form of a frame, in the form of ladders or in the form of trellises.
BACKGROUND
The state-of-the-art in matters of assembly of current materials that are easily transformable, in order to obtain a structure rendered rigid by wedging, in other words without the utilization of tools or other accessories, does not show any method that enables the quick construction of a self-supporting structure that exhibits a satisfactory rigidity.
By way of illustration, reference is made to the document FR-A-2629756 (LE GOURRIEREC) that describes a manufacturing method for furniture in semi-rigid flat materials. The manufacture of such furniture or structures requires cutting up, the assembly is very fast but gluing is necessary. In the type of assembly according to the document mentioned above, various operations are implemented for cutting to size strips of material of determined thickness, for folding the strips thus cut, in order to obtain adequate forms corresponding to the piece of furniture to be made. The semi-rigid material can be corrugated cardboard, in particular for making small sized structures, a plastic material such as polyethylene, expanded polystyrene, etc., a composite material, peeled wood, a metal such as honeycomb structured aluminium, etc.
The state-of-the-art is on the other hand also described by the document U.S. Pat. No. 4,182,244 (Hutchins and Gebnard) relating to a unit whose assembly is formed by four reinforcing bars to which four square panels are perpendicularly attached. The modular unit is formed, preferably, of very thick cardboard. It includes a plurality of panels which are adapted for fitting one above the other and each panel comprises a horizontal rectangular plate. The materials required here, are numerous and diverse. The major inconveniences of these structures are the possibility of global flow of the unit and/or of collapse under the effect of the weight and/or stresses due to shocks to which the framework structure is subjected by storage.
PURPOSE AND ADVANTAGES OF THE INVENTION
The objective of the present invention is to provide a rigid structure according which can be assembled with bare hands in others words the operator works without tools, without nails, without adhesive, without screws or other hardware accessory; assembly is very fast and the final structure exhibits a rigidity marked by pitch and/or roll. On a straight floor, the structure according to the invention is directly and perfectly plumb while exhibiting a great economy of material in relation to its final volume. Because of this the structure according to the invention is light.
The basic materials required for the construction of the structure according to the invention are flat and, consequently their packaging and their transport are very easy. Furthermore, the materials in question are readily available on the market in the form of flat panels, in various materials such as wood, cardboard, metal, expanded polystyrene, plexiglass, glass, etc. . . . In final state, when it has been assembled, the structure enables a set of cables, wires, pipes and lighting accessories to be easily dissimulated in the lattice of its uprights.
Each structure is, in fact an independent entity that can very easily be linked with another identical one and be extended by module in all directions.
On the other hand, the actual manufacturing of the chassis and the squared or rectangular panels which are the basic structural elements, requires neither abundant manual work, nor complicated tools, because they result, for the greater part from a simple operation of sawing, hollow punching or molding. After assembly, the dismounting of the structure is particularly easy, without major alteration to its components.
SUMMARY OF THE INVENTION
The invention relates to a method for assembling an object useful for storage or support. The
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Bloom Leonard
Friedman Carl D.
Wilkens Kevin D.
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