Static structures (e.g. – buildings) – Preassembled subenclosure or substructure section of unit or...
Patent
1986-06-02
1988-02-02
Friedman, Carl D.
Static structures (e.g., buildings)
Preassembled subenclosure or substructure section of unit or...
521274, E02D 3500
Patent
active
047221550
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a mobile building construction comprising a wall structure and a roof.
STATE OF THE ART
In military contexts, use is made of mobile building constructions in the form of containers, i.e. constructions comprising a bottom, four walls and a roof. These containers can readily be transported between different grounds, for instance by truck or helicopter, and be used for many different purposes, such as staff work, radio communication etc. Containers of this type are generally made of some kind of sandwich elements, usually in the form of a cellular plastic core disposed between two hard panels, such as plywood and/or sheet-metal. However, such sandwich elements suffer from very poor resistance both to explosive action and to firing. For this reason, the mobile housing containers hitherto used are not at all suited for use in combat areas and like areas where military operations are conducted.
BRIEF DESCRIPTION OF THE INVENTIVE CONCEPT
The present invention aims at providing a mobile building construction which can be readily moved between different grounds and yet afford reliable protection against external action, such as explosions, firing and the like. According to the invention, this is achieved more specifically in that the wall structure of the building construction comprises two spaced-apart sheels or panels which define a relatively broad gap-like space which, at the top, has one or more openings for filling heavy bulk material, such as macadam, gravel or the like, into said space so as to form a safety wall resistant especially to explosive action, and which further comprises one or more outlet openings adapted, when desired, to allow emptying said bulk material from the gap space in order to release the wall structure from the weight of the bulk material so as to facilitate transportation of the building construction from one ground to another.
FURTHER DESCRIPTION OF THE PRIOR ART
It is previously known in and per se to manufacture wall structures having double shells with a space formed therebetween which is filled with concrete. However, such wall structures provide a fully stationary construction which, because of its weight, cannot under any circumstances be moved by such means of transportation as trucks or helicopters once the concrete has been cast and set.
BRIEF DESCRIPTION OF ACCOMPANYING DRAWINGS
In the drawings,
FIG. 1 is a part sectional perspective view illustrating a building construction according to the invention,
FIGS. 2 and 3 are perspective views illustrating different ways of transporting the construction,
FIG. 4 is a perspective view which schematically shows how the wall structure is filled with bulk material,
FIG. 5 is a perspective view showing the finished construction in place,
FIG. 6 is an exploded view illustrating an alternative embodiment of the construction, and
FIG. 7 is a perspective view illustrating a practical example of the use of the alternative embodiment according to FIG. 6.
DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT OF THE INVENTION
In FIG. 1, 1 generally designates a wall structure which, in the illustrated embodiment, has rectangular shape and, according to the principle of the invention, is made up of two spaced-apart shells, namely an outer shell 2 and an inner shell 3. These two shells define between them a relatively broad gap-shaped space 4. In actual practice, this space has a width of 200-400, suitably about 250 mm, and is open at the top.
In the lower portion of the outer shell 2, there are a number of outlet openings 5 which are normally closed by pivotal doors 6 which can be locked in their closed position by locking means 7 of any suitable type. Advantageously, the openings 5 are elongate and extend up to one tenth--one third, suitably one fifth of the overall height of the wall structure. In the illustrated embodiment, the opening 5 extends throughout the entire length of the wall structure and can be closed by means of a plurality of individual doors. It is als
REFERENCES:
Dept. of Defense, "Family Shelter Series: Outside Semimounded Plywood Box Shelter", Jan. 1962, p. 15.
D.F.P.A. Plywood, "Family Fallout Shelters", Mar. 22, 1963, p. 7.
Friedman Carl D.
Lucksta-Bergenstrom Industri AB
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