Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Fabric or lattice; e.g. – indeterminate grating
Patent
1998-04-09
1999-10-12
Friedman, Carl D.
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Fabric or lattice; e.g., indeterminate grating
52668, 527362, 527322, E04C 242
Patent
active
059640723
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a construction framework with intercrossing beams such as columns and girders. The invention is primarily linked with building constructions of all types, but is not correspondingly limited, as relevant frameworks do appear also in machinery constructions and elsewhere.
The invention is based on the consideration that a strong and relatively light framework can be provided by means of C-profiled beams, preferably but not exclusively made of metal plate material, and that it is possible to prepare such beams with side recesses enabling them to be cross joined in the same plane without undue weakening in the crossing area. When the recesses are made with tight fit it is achievable that the cut-away web portions of the side flanges are substituted by the complementary web parts of the crossing beams so that pressure forces can be transferred as before, and the beams are easy to interconnect at the joints so that also pulling forces are transferable through the complementary web parts, e.g. in connection with bending impacts giving rise to a break momentum in the common plane of the crossing beams.
The crossing of the C-profiled beams in a common plane is advantageous in particular where the framework is to be filled out or covered with a panel plating, as in building or cabinet constructions.
Any relevant expert will know of different practical possibilities of application of such frameworks and also how to adapt them as to sizing, material choice and preparation with respect to additional details such as standard location of the crossing places along any beam for specific purposes, so it is deemed superfluous in the present connection to provide for detailed examples. They may range anywhere between small lightweight structures and high houses.
In the following the invention is described in more detail with reference to the drawings, in which:
FIGS. 1 and 2 are perspective views of two intercrossing, C-profiled beams, shown before and after joining, respectively;
FIG. 3 is a perspective view of a similar joint with added fixation means;
FIG. 4 is a perspective view of a relevant fixation system;
FIG. 5 is a perspective view of an intersection of beams of other dimensions;
FIGS. 6 and 7 are perspective views of a modified beam system, seen before and after the joining, respectively;
FIG. 8 is a view corresponding to FIG. 7, with other beam dimensions;
FIGS. 9-11 are perspective views showing further details;
FIGS. 12 and 13 are perspective views of modified joints;
FIG. 14 is an exploded view of the joint shown in FIG. 12;
FIG. 15 is a cross sectional view thereof;
FIG. 16 is a perspective view of a joint as shown in FIG. 13;
FIG. 17 is an end view thereof;
FIG. 18 is a perspective view of a house wall framework; and
FIG. 19 is a plan view of a corner joint in such a structure.
In FIG. 1, the drawing shows a basic arrangement comprising a vertical beam 2 and a horizontal beam 4, each in the shape of a C-profiled plate element with a base wall 6, side walls 8 and 10, and inwardly projecting flanges 12 at the free edges thereof.
At communicating places these beams are provided with interfacing incisions 14 so as to be joinable by lateral insertion to the shape shown in FIG. 2. Both the beams and the incisions should be made with good accuracy, as it is then possible to achieve a cross joint with a remarkable stability already by the mere insertion.
However, as shown by an example in FIG. 3 it is preferred to effect a further fixation and stabilisation by means of angular plate fittings 16 having holes at opposite ends for receiving rivets or screws. The beams may be prepared with relevant holes 18 in situ or preferably as a standard in connection with the making of the incisions 14. Short, self-cutting screws can be used.
For further stability, however, a stay bolt and distance bushing system 20,22 as indicated in FIG. 4 may be used between all or some of the respective pairs of opposite holes, all according to the requirements.
FIG. 5 shows as an example that two crossing beams
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patent: 1497516 (1924-06-01), Lane
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patent: 2097172 (1937-10-01), Yurkovitch
patent: 3310922 (1967-03-01), Hoffmann, Jr.
patent: 3768224 (1973-10-01), Curtis
patent: 3875712 (1975-04-01), Thompson
patent: 3927950 (1975-12-01), Herrmann et al.
patent: 5285612 (1994-02-01), Johnson
Dorsey Dennis L.
Friedman Carl D.
Safran David S.
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