Flexible or portable closure – partition – or panel – With hood – canopy – shield storage chamber – or outrigged... – For plural strip – slat – or panel and/or pleating type
Reexamination Certificate
1997-08-25
2001-05-15
Redman, Jerry (Department: 3634)
Flexible or portable closure, partition, or panel
With hood, canopy, shield storage chamber, or outrigged...
For plural strip, slat, or panel and/or pleating type
C160S023100
Reexamination Certificate
active
06230782
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a shutter box for a window or door, the bottom region of which simultaneously takes the form of a top transverse spar of the fixed frame, against which the casement of the window or leaf of the door strikes, and the transverse spar simultaneously takes the form of an angle section bar with an obliquely outward and upward leading wall portion and an extensively vertical web extending up to the top cover of the shutter box.
2. Description of the Related Art
Such a shutter box is known from German Utility Model DE 92 01 336 U1. To manufacture said known shutter box, individual sections are produced which then have to be assembled by means of screw connections to form the shutter box. A plastic material is frequently used to manufacture the individual sections; the individual sections made of said material are connected to one another by screws made of metal. This is expensive and laborious. Such a shutter box is however a mass-produced product which is manufactured under corresponding time pressure, which leads to the screw connections also being produced under time pressure. The result is that often incorrectly fitting screw connections and accordingly incorrectly fitting shutter boxes are produced or, because of the extreme time pressure, the points provided in the plastic material for receiving the metal screws are damaged with the result that the individual section may no longer be used.
In order to eliminate the described problems, the object of the present invention is to develop the shutter box in such a way that the risk of damage to the individual sections is avoided and the shutter box may be manufactured quickly, easily and inexpensively.
SUMMARY OF THE INVENTION
According to the invention, the shutter box to said end is formed by a plurality of individual sections which are connectable by means of separable plug-in connections to form the shutter box. Said plug-in connections are easily put together by hand during assembly. Damage to the individual sections is therefore ruled out. Since, in principle, no tools of any kind are needed for assembly, assembly is very easy and hence inexpensive.
In an advantageous embodiment, a vertically extending web may be introduced between the angle section bar and the top cover and may be connected likewise by means of separable plug-in connections to the angle section bar and the top cover. As a result, it is possible to create a shutter box of variable height, this being advantageous particularly when armoured shutters of differing length and hence take-up shafts of differing diameter are to be accommodated in the same shutter boxes. In such cases, it is possible by simply inserting a vertical web and fitting a suitable side wall to adapt the size of the shutter box without any further modifications being required.
Further variation possibilities arise when the angle section bar itself is also composed of individual sections.
The individual sections themselves at least in areas preferably take the form of hollow sections, resulting particularly in a high rigidity of the sections and a high strength of the shutter box as a whole.
According to an embodiment, the individual sections at least in portions are provided with grooves and tongues. It is therefore possible to achieve a particularly simple and durable plug-in connection of the individual section parts because, in each case, all that is required is to arrange one section part with a tongue adjacent to a corresponding groove of a second section part which is to be connected to the first section part and then press the two section parts together. The tongue preferably takes the form of an elastically deformable hollow section.
According to a further refinement, the individual sections at least in portions are provided with elastically spreadable, hook-like projections which are movable so as to engage, for example, in a latching, releasable manner into recesses in the respective adjacent individual section, which are substantially complementary in shape and/or function thereto, so as to establish the plug-in connection.
A particularly strong and stable plug-in connection arises when the grooves and tongues and/or the hook-like projections and the recesses complementary in shape and/or function thereto extend substantially continuously over the entire length of the individual sections because then, in contrast particularly to a punctiform screw connection, the entire section length or the entire length of the shutter box is used for a line-contact connection and a virtually tight connection of the individual sections is achieved without local vaulting.
The individual sections may take the form of extruded sections, especially of plastic material. In said case, the elements needed to produce the plug-in connection, such as, for example, grooves, tongues, projections and the like, may easily be formed integrally on the sections.
For further increasing the strength of the shutter box or the rigidity of the individual sections, according to a further embodiment reinforcing or stabilizing elements may be disposed in the individual sections. These may be, for example, inlaid rods or strips made of metal or plastic material.
REFERENCES:
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patent: 4399855 (1983-08-01), Volfson
patent: 4611848 (1986-09-01), Romano
patent: 4662038 (1987-05-01), Walker
patent: 4883109 (1989-11-01), Sonderby
patent: 4947762 (1990-08-01), Perzl et al.
patent: 5040843 (1991-08-01), Russell et al.
patent: 5191735 (1993-03-01), Ross
patent: 5371925 (1994-12-01), Sawatsky
patent: 5460216 (1995-10-01), Hirao et al.
patent: 5613282 (1997-03-01), Deddens, Sr. et al.
Cohen Curtis A.
Feiereisen Henry M.
Redman Jerry
Schuco International KG
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