WALL STRUCTURE

Abstract: The invention concerns a structure for removeable, non-­ load bearing walls, such as partitions for offices, fairs, exhibitions etc. Such structures consist of upper and lower support rails (20) between which are a plurality of panels (21, 22, 23, 24), generally modular, which slide in the said supports (20). The said panels (21, 22, 23, 24) are composed of a substantially flat central section and projecting longitudinal surfaces on all or part of the sides of each panel. When the structure is assembled, the panels (21, 22, 23, 24) engage each other by these projecting areas, resulting in a chain without problems of continuity.

Description: The present invention concerns a structure for removeable non-loadbearing walls, as for partitions in homes or offices, and in particular walls for stands or exhibition spaces in fairs, exhibitions or similar. The problem of subdividing or zoning open space in buildings, without building walls, has been solved for some time by means which depend on what is to happen eventually to the wall. If the wall is to be semi-permanent, e.g. in an office, it is usually built of prefabricated sections anchored in some way to the floor, the permanent walls and, where necessary, the ceiling. There are some differences where the wall has to be removed completely after a more or less short time, e.g. the wall separating the exhibition space or stand at a fair, exhibition or similar. In this case the said walls are more often made by linking aligned modular panels; at the end of the period of use the walls are dismantled and the panels are removed and stored until they are next required. The principal disadvantage of these solutions is that in both cases the panels (and any linking mountings) are of fixed size and the length of the walls to be built is not always a whole multiple of the modular panels. In such cases it is necessary to use different sized panels or to adapt one of the panels to fit the length required, with all the complications that that involves. A further disadvantage is that once the panels have been linked together and to the supports, the resulting wall is fixed and difficult to move, and cannot be later modified without dismantling at least a part of it. An example of this kind of structure is disclosed in DE-A-2802151. An attempt to solve the above problem is disclosed in US-A-3642051 and in FR-A-1324239, both relating to non-load bearing walls comprising a plurality of panels having laterally projecting parts linking together said panels in a series. The thus obtained wall structure is movable along guiding rails from a retracted position in which each panel is partially superimposed to all other panels, to an extended position in which the wall structure is formed. In order to achieve this purpose the projecting parts of the panels and/or the guiding devices that are housed in the guiding rails have to be purpose built and are different in each panel. The drawbacks of these solutions are that the forming of the wall structure is long and time-consuming because it is necessary to select the appropriate panel each time, and in that their manufacturing is expensive because the panels are all differently shaped. The aim of the present invention is to correct the abovementioned shortcomings and produce a modular panel wall structure that can be adapted to whatever length is required independently of the size of the panels used, and that can be modified after installation. This aim is achieved by the structure according to the invention, which makes it possible to have non-loadbearing walls, consisting of a plurality of panels, and adaptable to the dimensional requirements of each individual case. Another aim of the present invention is to produce a wall which, while being composed of standard modular elements, gives the aesthetic appearance of continuity in as much as that it does not require those structural elements (mountings) which subdivide the traditional modular walls. In more detail, the present invention provides for a structure of non-loadbearing walls, which can be used as partitions in living accomodation, offices, fairs, exhibitions and similar, according to claim 1. The structure thus obtained is easily set up, is strong, and has considerable storage advantages when not being used. The invention will now be described in greater detail, with reference to the attached drawings, which are of an illustrative but not limiting nature, in which: Fig.1 is an exploded partial perspective view of the structure according to the invention; Fig.2 is a transverse section view of the panel structure of Fig.1; Fig.3 is a transverse sectional view of some panels of an alternative embodiment of the structure of Fig.1; Fig.4 is a transverse sectional view of some panels of another alternative embodiment of the structure; Figs.5, 6 and 7 each show a transverse sectional view of a panel of an alternative embodiment of the structure shown in Fig.4; Fig.8 is another alternative embodiment of the panels of the structure of the preceding figures; Figs.9, 10 and 11 each show a transverse sectional view of a panel complete with elements for equipping the panels; Fig.12 is a partial perspective view of an example of an equipped wall; Fig.13 is a partial perspective view of a support and panel guide rail according to the invention; Figs.14, 15 and 16 are plan views of possible lay-outs of the panels in the support and panel guide rail; Fig.17 is a partial perspective view of a wail according to the invention; and Fig.18 is a partial sectional view of a panel according to the invention while being inserted into the support and guide rails; With reference now to Fig.1, the structure according to the invention is of the type consisting of an upper 14 and lower 20 support and guide element, between which a number of sliding panels 1 (for simplicity only one is shown in Fig.1) are mounted; such panels are generally but not necessarily modular i.e. all of the same size. The lower support 20 and the upper support 14 are each provided with at least one longitudinal channel or guide rail in which the panels slide by means of engagement means as studs, rollers or similar 37, 39 located respectively on the upper and lower edges of panel 1. The shape of each panel is such as to have a central part 2 substantially flat, to which are linked two or more projecting parts 3, located longitudinally along the sides of each panel. Such projecting parts 3 may extend along the full length of the sides of each panel (as in Fig.1) or, alternatively, be a series or separate projecting parts linked to the sides of the same panel (not shown). As will be seen with reference to Fig. 17 below, when the structure is assembled each panel engages the preceding panel and the following panel by means of the said projecting parts. The above mentioned projecting parts can be realized by various shapes, some of which are shown in Figs.2 to 8. A first preferred embodiment provides for the projections to extend from the same face with respect to the plane of the central part; Fig.2 shows, as an example of such an embodiment, a transverse section of the panel previously illustrated in Fig.1. As can be seen, the two projecting parts 3' consist of two wings extending from the same face with respect to the plane of the central part 2, forming substantially equal angles with the same central part. The angles formed by the wings 3' can vary according to the type of configuration chosen; preferably they would hase values between 15 and 170 degrees (measuring every angle starting from the central part 2) and more preferably would be greater than 90 degrees. Such an angle greater than 90 would allow easier stacking of the panels for storage when not in use. In place of the wings 3', the projecting parts fixed to the central part 2 could consist of seals fitted to the panels before assembly, as is shown in Fig.3, where is shown a top view of three linked panels are shown in on assembled condition. As can be seen, each panel 4 is fitted at both ends of the same face with a pair of seals 5. The panels 4 are assembled into the structure i.e. mounted between the upper and lower supports (not shown in Fig.3) in such a way that the two faces provided with the seals on adjacent panels face each other. In particular, each seal 5 of a panel will be located between the seals 5' of the other panel immediately adjacent, as can be clearly in Fig.3: Alternative embodiments to Figs. 2 and 3 can have the projections extending on opposite faces with respect to the plane of the central part, as can be seen in Figs. 4 to 7. Figs 4 and 5 show two embodiments, similar to that shown in Figs 1 and 2, in which the projections are formed by wings 6 integral with the central part 2. In this case the wings 6 form angles, shown as in with Fig.4, with the central part 2, which is preferably equal and greater than 90 degrees. Such an angle is less critical than that indicated with reference to Fig.1 and 2 in as far as storing the panels is concerned; in effect the angle can vary between 15 and 170 degrees, as in the example shown in Fig.5. Figs.6 and 7 show two further alternative embodiments of the panel shown in Fig.4 in which the projections consist of returning curves 7 or semicircular or closed circular 7'as is shown respectively in Figs 6 and 7. Also in this case the parts 7 and 7' are preferably produced as extensions of the central flat part 2. Fig.8 shows another example of a possible shape for the projections. In this case the projections 8 extend from the same face with respect to the central part 2 and are "Z" shaped; the projections 8 could also extend from opposite faces of the central part 2, in a way similar to that shown in Figs. 4 to 7. The example of Fig.8 was used to show how any shape can be used for the projections, provided that there is engagement of the panels one with the other when the structure is assembled. Preferably, the walls created by the structure according to the invention should be able to be "equipped", where "equipped" means fitted with holders for shelves, display cases or other devices for connecting accessory elements to the same panels. These accessory elements to equip the wall, Fig 10, can be fixed to the surface of the wall on an entirely random basis inasmuch it is not recessary to follow the vertical uprights to fix the supports. Such ability to be equipped is preferably obtained by means of the shape of the panel shown by Figs.9 to 12. In the embodiments shown in Figs.9 and 10 such ability to be equipped is obtained by notches or slits in chosen points of the panels. Such points, which are indicated by 9 in Fig.9, are located on the angle formed by the central part 2 and the projecting part 10; the free part of the projection 10 is joined to the central part 2 by a plate 10a in such a way as to present greater structural strength in comparison to a structure similar to that of Fig.4 or 5. In Fig.10 the slits are set in hollows or folds 12 of the panel; such hollows also increase the rigidity of the structure in which the folds 9 appear. Referring again to Fig.7, the inherent structural rigidity of the shape already prepares it to be equipped. As an alternative to the embodiments described above with reference to Figs.7, 9 and 10, there are draw pieces 13 which, as can be seen in Fig.11 are attached to the projection 6 preferably after the construction of the panel, and if necessary after the erection of the structure to form the wall; in this case the notch or slit 9 is set into the piece 13. Fig.13 shows a preferred embodiment of the upper support of the structure according to the invention. As can be seen the support 14 has a channel 15 which extends longitudinally along it and serves, as mentioned above, as a guide for the sliding device by which the panels can move along the support. In Fig.13 the support 14 has only one channel but it is obvious that two or more channels can be made according to the preferred shape of the structure according to the invention. Naturally, the lower support 20 (as shown in Fig.1) has the same shape as the upper support 14. Figs.14 to 16 show schematically how the panels according to the invention can be housed in the upper and lower supports. As previously mentioned, in whatever form the embodiment according to the invention takes, the panels each engage the upper and lower supports with a pair of studs or similar elements located on the upper and lower edges of the panel. Such studs, rollers or similar slide in the channels of the upper and lower supports, permitting the panels to slide along the said supports. Further, the shape and size of the central and projecting parts of each panel are such as to allow the reciprocal engagement of each panel with that immediately before and after it, when the structure is assembled. In this way, moving a panel which is at the end of a series of panels moves the other panels linked to it, moving them along the supports and thus getting a continuous wall without gaps. Referring now to Fig.14, it can be seen that the panels (of the type already shown in Fig. 4) are fitted with studs 37 located in the channel 15 indicated by the broken line 15'. More specifically, it can be seen that the studs 37 are located on the projections 19 thus permitting the use of a single upper and lower channel for all the panels forming the structure according to the invention. Fig.15 shows an alternative embodiment in which each support contains two channels, indicated by the broken lines 18 and 19, in which are housed the studs 39 of each panel 16. In this case, the studs of each panel engage both channels of each support. Another form of embodiment is that shown in Fig.16, according to which each support contains two channels 18 and 19 similar to those of Fig.15, differing from it in that in this case the studs of each panel engage only one channel; thus the panels 17 are housed alternately in channels 18 and 19. Fig.17 shows schematically the structure assembled and extended as a wall. As described above, each panel engages and is engaged by the projecting part of the panel immediately adjacent to it; this allows the structure to have great flexibility, which can be adapted to each individual case. An example of this adaptability is shown in Fig.17 where for the sale of simplicity the upper support 14 has been omitted. As can be seen, the wall structure consists of four identical panels 21, 22, 23 and 24. The length of wall required is less than the length of the four panels 21 - 24 extended end to end, as would happen by using a state of the art structure. On the other hand the structure according to the invention allows the panel 24 (or, alternatively, any of the panels) to be partially used, extending the reciprocally linked panel wall structure to the length required. To facilitate the insertion and removal of the panels in the channels of the upper and lower supports, two forms of panel pins are envisaged. In the first form the length of the pin on the upper side of the panel is greater than that on the lower side; as can be seen from the Fig.18, such a configuration allows the insertion of the panel in the channels 15 of the upper 14 and lower 20 supports by the "guillotine" method. Alternatively, the upper or lower pins are temporarily retractable from their working position (by a spring loaded control, by rotation on a shaft, or similar device) thus facilitating the insertion and removal of the panels into and from the upper and lower supports. The invention has been described with reference to some preferred embodiments, but it is evident that other forms can be conceived by anyone skilled in the art, without going outside the protection offered by this patent.

Claims: A structure for non-loadbearing walls for homes, offices, fairs, exhibitions or similar, of the type consisting of upper and lower support rails (14, 20) between which a plurality of panels (1) are lodged in a mobile way by means of sliding engagement devices (37), and where the panels are composed of an essentially flat central part (2) and at least two portions (3, 5, 6-8) positioned longitudinally along the vertical sides of each panel and each projecting from the plane of said central part (2) to engage one projecting portion (3, 5, 6, 8) of an adjacent panel; characterized in that said engagement devices (37) are identically positioned on all said panels, and in that each intermediate panel is always partially superimposed on the two adjacent panels only. A structure according to claim 1, characterized by the said projecting parts (3, 3'; 5, 5') extending from the same face with respect to the plane of the central part (2) of the panel (1). A structure according to claim 1, characterized by the said projecting parts (3', 6) being composed of two winglets forming essentially equal obtuse angles with respect to the plane of the central part (2) of the panel. A structure according to claim 1, characterized by the said projecting parts being composed of seals (5, 5') pre-attached to the panels. A structure according to claim 1, characterized by the said projecting parts (6-8) extending from opposite faces with respect to the plane of the central part of the panel. A structure according to any of the preceding claims, characterized by the said panels (1) having fixtures for additional elements, such as notches or slits (9) made in raised ridges, hollows or folds (10, 10a, 12, 13) in the panels or similar structures. A structure according to claim 1, characterized by the said support elements (14, 20) having one guide channel (15) in which the sliding mechanisms (37) of all the panels run freely. A structure according to claim 1, characterized by the said support elements (14, 20) having two guide channels (18, 19) and the sliding mechanisms (37) of all the panels engaging both channels. A structure according to claim 1, characterized by each of said support elements (14, 20) having two guide channels (18, 19) and the said sliding mechanisms (37) of each panel engaging one of the channels, the said panels being alterantively first (21, 23) in one, then (22, 24) in the other channel. A structure according to one of the preceding claims, characterized by the said means of sliding engagement (37) consisting of a pair of studs or similar above and below (39) each panel, the upper studs being longer than the lower (39) for "guillotine" insertion and removal of the panels into and from the said support rails. A structure according to one of the claims 1 to 5, characterized by the said means of sliding engagement (37) consisting of studs or similar above and below each panel, the upper or lower studs being temporarily retractable into the panel to facilitate insertion and removal of the panels into and from the said support rails.

Inventors: OLEWSKA, ANNA
Applicants: DOLMEN ENG & SYSTEMS, DOLMEN ENGINEERING & SYSTEMS LTD
Application year: 1989
Main classification: E04B2
IPC codes: E04B2