EP0453415B1

EP0453415B1 - A jointed supporting outlining guide for load-bearing structures on walls and ceilings and bent or round panels or curved architectural structure to be covered with plaster-board or with other similar materials

Info

Publication number: EP0453415B1
Application number: EP91830132A
Authority: EP
Inventors: Antonio Guerrasio
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-04-12
Filing date: 1991-04-08
Publication date: 1995-01-25
Anticipated expiration: 2011-04-08
Also published as: EP0453415A1; DE69106921D1; GR3015858T3; IT9040414A0; IT1246940B; ES2070476T3; DE69106921T2; DK0453415T3; IT9040414A1; ATE117756T1

Abstract

The invention consists of a jointed outlining guide for ceiling structures, for bent or round panels or for any curved architectural structure to be covered with plaster-board or other similar materials. The outlining guide formed by a series of box-like, U-shaped sections (1) linked by pliable joints are made preferably from a metal sheet in which circular or semi-circular slots are cut in such position that, when the sheet is properly bent, links between one box-like section and the other are formed. The side walls of the open box-like sections can be of the same height or of different heights and their edges can be either straight or turned inward. <IMAGE>

Description

The invention concerns a load bearing jointed profile according to the preamble of claim 1. Such a profile is known from document FR-A-2 233 485.
Structures covered by plaster-board or similar materials are being more and more commonly used. They let us achieve light structures in many different shapes, particularly arched, bent or round shapes.
It is known a French Patent FR-A-2 233 485 considered the symbol of relevant background art, which compared with the proposed patent, is differentiated by the following reasons:

the profile object of this proposed patent is able to accomodate internally to its 'U'-section a second rigid profile, in such a way as to realize a metallic frame wich could accommodate boards, particularly in covered gypsum, to be fixed by screws, to construct curved architectonic elements for interior's finishing; differently, instead, the described patent FR-A-2 233 485 is ideal to be covered wholly with plastic material in order to build windows packing, in particular automobile windows;
the profile of patent FR-A-2 233 485 does not present function material folded inward, however, the segmentations of the profile are joint through two sides only with flat joints; while the profile object of this proposed patent presents three joints, one for every face, folded inward and linking many box-like 'U'-shaped segmentations;
the profile of patent FR-A-2 233 485 can be around one single axis; differently, instead, the proposed profile is easily bent by hand, allowing the box-like elements to pivot, relatively on respect to the other, around two orthogonal axes, and having the possibility to loosen as a spiral in space;
the profile object of the proposed patent, thanks to a profiling of the superior edges (8) of lateral faces, has the possibility of being easily fixed by trip on the apposite sleeper (9); differently, the profile of patent FR-A-2 233 485 does not have this feature.

The aim of the present patent for industrial invention is the suggestion of a solution that realizes the modelling of structures for curved manufactures, that is, before the structure is covered with panels made of plaster-board or similar materials.
This object is solved basically by the solution given in the characterizing part of claim 1. Further advantageous embodiments are laid down in the dependent claims.
The proposed solution consists in the creation of a jointed guide which can easily and rapidly be shaped as to assume the form of the structure required.
The guide is essentially a 'U' shaped outline, preferably metallic and zinc-coated, (sheet) formed by a series of open, box-like elements, made by bending towards the inside of the base and of the side walls, some of the material which has not been removed by the shearing.
In this way joints are formed in the structure which allows the outline to be bent in all directions.
The resolving idea can be better understood by referring to the enclosed illustration, where the idea is shown in an indicative, not obliging realization. In table 1/6, fig. 1) shows the sheet, already cut so that it can be bent; in fig. 2) the sheet is already bent longitudinally to form a single box which has a U-shaped cross-section.
In table 2/6, fig. 3) and 4) show the structure bent at the cut points and showing both the back and the front.
In table 3/6,fig.5) and 6) show the guide in different bending situations; some bendings are carried out to extremes, until the breaking of the more stretched connection element occurs; in figure 7) it is shown a box-like element separated from the others.
In table 4/6, fig. 8) shows a structure shaped by means of a series of flexible guides.
In table 5/6, fig. 9), 10) and 11) indicates the flexible guide with fixing vanes to create, for example, a stair-like structure.
In table 6/6, fig. 12), 13) and 14) suggest a way of fixing the box-like elements by having the upper edges of their sides bent in order to snap them up in appropriately shaped supporting structures.
Regarding the figures displayed, the sheet (3), cut with slots (4) and (5) is longitudinally bent to create one box-like element (1) as shown in fig.2); afterwards the joints (2) are bent towards the inside of the box-like element.
This is done to obtain a chain of box-like elements all linked by the base and the smaller side faces by means of webs (2) which are bent towards the inside as shown in figures 3) and 4).
This particular connection of the box-like elements allows the flexible outline to be bent along two orthogonal axes parallel to the plane of the base and the smaller side faces.
This particular feature of the guide is used to shape it easily by hand following the outlines of the structure to be created by first fitting the upright elements (6) and afterwards covering it with panels of plaster board or similar materials, as shown in fig.8).
The outlining guide has been improved to obtain a broader application, by lengthening one of the smaller sides to create the vanes (7) as shown in table 5/6 in fig. 9); it is then possible to connect several, suitably staggered, flexible outlines by fixing the vanes (7) of one outline to the side of the adjacent one, as shown in fig. 10) and (11).
In this way, it is possible to create a curved stair structure as shown in fig. 11).
A further improvement is shown in table 6/6 by using bent side edges (8) of the box-like elements (1) as seen in a front view in fig. 12) and in an axionometric view in fig. 13).
This profiling allows the trip of the box-like elements (1) of the jointed profile on an appropriate sleeper (9), as shown on fig. 14.

Claims

A load bearing jointed profile (1) used as an outline and as a sustaining element for light structures, consisting of a chain of U-shaped sections integrally linked together by webs(2) which are formed by the removal of material (4, 5), characterized in that the sections have the form of open box-like elements (1) which are linked at their smaller sides by three inwardly folded webs extending between the bottom and each of the two longer side faces of the elements so that the elements can pivot relatively to each other on two orthogonal axes.
A jointed profile as in claim 1 and for the purpose of the same, characterized by the fact that it is obtained by a metallic sheet (3).
A jointed profile as in claim 2 and for the purpose of the same, characterized by the fact that plaster-board or similar panels are fixed on the side faces or along the base in order to obtain the stiffening of the structure.
A jointed profile as in claim 3 and for the purpose of the same, characterized by the fact that protruding elements (7) provided along one side of the box-like sections (1) are used for clamping to other structures.
A jointed profile as in claim 4 and for the purpose of the same, characterized by the fact that the lateral faces are equipped with a curved profiling (8) for every box-like element (1) to allow the trip on appropriate sleepers (9).