DE4021262A1 - Grill protecting window from break-in - is constructed from metal bars and tubes which fit one in another - Google Patents

Abstract

The metal grill for protecting a window against a break-in is so designed that it can be fitted in the opening of an existing window. The grill is constructed from solid bars (1) with a piece of tube (2) welded to one end with the tube lying along the side of the bar. Two such elements can be joined together by placing the free end of the solid bar of one element inside the tube of the other element. A second bar can be fitted with one end in the tube and the other end in a hole in the masonry surrounding the window. USE - House security.

Description

In residential and commercial buildings, the number is increasing Burglary, a subsequent barring of Window openings with mechanical locks, of which Building owners wanted.

Since the installation of these mechanical fuses mainly in the form of Window grilles, a secure attachment in the area surrounding the window Masonry is required and a size adapted to the window size is installed has to be, each is a precise, complex previous preparation of mechanical fuses in the form of grids, and a subsequent one Installation with considerable plastering and plastering and repainting connected.

Extendable multi-tier window grilles are also known, which, however, still has a large, sorted inventory at the dealer and often unusual, heavyweights for the DIY enthusiast Require assembly work.

It is therefore the task of mechanical security to introduce the do-it-yourselfers without heavyweight elements themselves can create and at the same time the advantages of extensibility, that is infinitely adjustable length, to ensure that a trade the lowest possible sorting of stock is to be kept.

The mechanical securing device according to the invention consists of a single, two-part lattice rod which, due to its special design, can be pulled out, although it is made from solid metal rods ( Fig. 2).

The two-part lattice bar consists of two, preferably identically designed, individual elements that each guide one another when inserted into the other and provide stability ( Fig. 1, 2, 3). Part of the lattice bar according to the invention consists of a preferably solid metal bar, at one end of which is flush, parallel, a shorter metal tube body is worked on, the inside diameter of which is dimensioned such that the outside diameter of the preferably solid metal bar being worked on is slightly smaller and in the metal tube body can be easily performed and moved. In a further embodiment according to the invention, the metal tube body is designed in the form of a U-shaped long profile, the end faces of which form the contact surface on the preferably solid metal rod ( FIG. 3).

If two of these same individual parts are now put together so that the preferably solid metal rod of each individual part is inserted through the respective metal tube body of the other individual part, surprisingly, a stable, steplessly displaceable metal grille rod is obtained, which is now designed at the respective free ends so that it is particularly suitable for fixing in masonry ( Fig. 7, 8, 9, 10).

An embodiment according to the invention is characterized in that the ends are each bent by 90 degrees ( Fig. 4) with one-sided additional bulbous deformations ( Fig. 5) and make assembly from the outside possible on the wall. The one-sided additional deformation should allow the use of the deformation as a flower box holder after assembly in connection with several bars, vertically next to each other.

Further designs of the free ends by changing the cross-section of the preferably massive metal rod in order to secure it in the cement feed introduced into the borehole are part of the inventive design of the lattice rod ( FIGS. 7, 8, 9, 10). In a further embodiment of the lattice bar according to the invention, there is the possibility of using the continuously extendable lattice bar in boreholes, since it is possible to insert it between solid wall walls and then pull it out into the boreholes, and it is not necessary to break open the wall walls.

There is also a loosening of the bars due to temperature fluctuations excluded because the change in linear expansion by the respective leadership is balanced.

The lattice bar according to the invention applies in a further embodiment preferably both individual parts of fixed decorative elements, the are preferably fixed so that when pulling out or pushing together, a symmetrical displacement of the decorative elements is achieved.

This is achieved when the decorative element is applied identically to or on each individual part ( Fig. 6).

In order to achieve lateral stability when installing a plurality of lattice bars next to or one above the other, in a further embodiment according to the invention the decorative elements are shaped in such a way that they hook into one another and so several lattice bars are fixed against one another during assembly ( Fig. 11).

Overall, the lattice bar according to the invention results in astonishing simple, user-friendly, ideal for the DIY enthusiast and very stable, partly double-rod mechanical fuse.

Claims (9)

1. Lattice bar for securing window openings in masonry, characterized in that the lattice bar consists of two preferably identical, metal individual elements, in which each individual element is designed in such a way that a metal bar, preferably made of solid material, is preferably flush at one end, Fitting in parallel, a shorter metal tube is attached, the free inside diameter of which is dimensioned such that the outside diameter of the adjacent and attached, preferably solid metal rod is slightly smaller and two of these individual elements are inserted into one another such that the metal rod, which is preferably made of solid metal, is inserted into the attached metal tube of the other individual element is inserted so that the metal rod of the other individual element, which is preferably made of solid metal, is inserted into the metal tube of the other individual element ( Fig. 1, 2). 2. Lattice bar according to claim 1, characterized in that the metal tube body is replaced by a U-shaped long profile, the straight end faces of which form the contact surface on the preferably solid metal bar ( Fig. 3). 3. Lattice bar according to claim 1 and 2, characterized in that the free ends of the individual elements, preferably made of solid metal, have an incision following the diameter, the remaining half diameters being spread apart ( Fig. 8). 4. Lattice bar according to claim 1, characterized in that the free ends of the individual elements preferably made of solid metal are flat and widened ( Fig. 7). 5. Lattice bar according to claim 1 and 2, characterized in that the free ends of the preferably made of solid metal individual elements are enlarged with a metal disc ( Fig. 9). 6. Lattice bar according to claim 1 and 2, characterized in that the free Ends of the individual elements, preferably made of solid metal by changing the cross-section, such as depressions in places Show profile. 7. Lattice bar according to claim 1, 2, 3, 4, 5, 6, characterized in that the free ends of the preferably made of solid metal individual elements are bent at an angle of 90 degrees in the same direction ( Fig. 4). 8. Lattice bar according to claim 1, 2, 3, 4, 5, 6, 7, characterized in that a single element of the two of a lattice bar, which is preferably made of solid metal, is deformed in a bulbous shape ( Fig. 5). 9. Lattice bar according to claim 1, 2, 3, 4, 5, 6, 7, 8, characterized in that the individual elements are each locally occupied in the same place with decorative elements and these are designed so that the decorative elements consist of hook profiles ( Fig . 11 and 6).