DE8810173U1 - Guide rail for roller shutter - Google Patents

Description

Guide rail for roller shutter

The innovation concerns a guide rail for roller shutters with an essentially hollow U-shaped cross-section. Such guide rails are known and may contain connecting webs inside the hollow space, which are formed in one piece with the rest of the plastic profile and connect two pairs of opposite inner walls of the guide rail to each other in order to reinforce the profile against warping.

Such known guide rails for roller shutters have the disadvantage that they can only be glued to the window reveal and the window frame, as the thin-walled profiles do not provide sufficient support for screwing. This often results in the guide rails coming loose and breaking down if the glue is incorrect or if the glue breaks down.

Another disadvantage of the known guide rails is that they can be easily cut open, especially if the guide rail is made of a plastic material, so that the roller shutter curtain can be pulled out of the guide rail , which offers the possibility of burglaries.

The task underlying the innovation was therefore to obtain a guide rail for roller shutters of the type mentioned above, which offers increased security against burglary and better fastening options.

The guide rail for roller shutters according to the invention with a substantially hollow U-shaped cross-section is characterized in that it contains a metal rail inserted into the hollow space over at least part of its length.

The innovation is particularly applicable to guide rails made of a plastic profile, although the innovation concept is also conceivable for thin-walled metal profiles, such as aluminum profiles.

By inserting a metal rail, which preferably extends over the entire length of the guide rail, the outward-facing U-leg cannot be sawed or cut open in order to pull out the roller shutter curtain, so that such guide rails offer increased security against burglary.

The inserted metal rail can be in the form of a plate that only fills the outward-facing U-leg of the guide rail. However, a metal rail offers increased safety and the possibility of additional fastenings if it is L-shaped and thus at least partially fills the U-bridge in addition to one of the U-legs, or if it is U-shaped in cross-section and thus at least partially fills the U-bridge and both U-legs. In the latter case in particular, with

U-shaped metal rail/ it is impossible to remove the metal rail and pull out the roller shutter curtain when cutting open the outer U-leg of the guide rail.

In order to achieve this, especially with flat or L-shaped metal rails, these can be glued into the hollow guide rail profile. In the case of metal rails with an L- or U-shaped cross-section, pulling out can also be prevented by additional screwing to the window reveal and/or the window frame.

It is not necessary that the metal rail completely fills the cavity of the guide rail, but it is preferred that this is at least substantially the case.

To further increase safety and improve fastening to the window reveal and/or window frame, it is preferable to provide additional fastening options.

For this purpose, according to a preferred embodiment of the innovation, the U-shaped web of the guide rail and the metal rail have aligned through holes for receiving a fastening screw, which is inserted from the inside of the roller shutter guide, passed through the holes in the guide rail and the metal rail and screwed into the window reveal.

According to another preferred embodiment, which can be used together with or without the preferred embodiment just described , one of the U-legs of the guide rail, namely the one that lies behind the roller shutter after installation, is provided with through holes for fastening screws and the metal rail is provided with aligned threaded holes with internal threads. These devices serve to guide a screw through the window frame through the outer wall of the guide rail and screw it into the internal thread in the metal rail. All these measures serve to increase the security of the guide rail against burglary >3T-

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heights and improve the stability and secure attachment of the guide rail to the window reveal or window frame.

If, in accordance with the innovation, a metal rail with a U-shaped cross-section is used, the interior of the hollow space of the guide rail must be kept free of crossbars. However, if metal rails with an L-shaped cross-section or plate-shaped metal rails are used that are only located in one of the U-legs and, if necessary, in addition to the U-web, it is advisable to provide at least one reinforcing web along the guide rail in the other U-leg or also in the U-web not filled by the metal rail, which connects two opposing inner walls of the guide rail to each other.

The drawing further explains the innovation. In it,

Figure 1 shows a cross-section through the embodiment of a guide rail according to the innovation with an inserted screw for fastening to the window reveal and Figure 2 shows a cross-section through another embodiment

After the innovation, also with an inserted screw for fastening to the window reveal.

The guide rail 1 or 2 shown in figures "rind 2"

1' each has a substantially hollow U-shaped .*- cross section, which is only penetrated by a reinforcing web 2 in the case of the embodiment according to f 30 Figure 1. In the t cross section, the guide rail has a U-web 3 or 3 ¹ , a narrower U-leg 4 or 4 ¹ , which lies on the outside of the roller shutter curtain, and e*.-^ jfei-

£ teren U-leg 5 or 5 · , which is behind the roller shutter curtain all s

should rest against the window frame.

&iacgr;§ In the guide cavity, the guide rail has projections ff 6 or 6", which support the roller shutter curtain after installation when opening and closing.

-δ-sliding Jm distance from the surface of the guide rail .

In the embodiment shown in Figure 1, the guide rail 1 contains a metal rail 7 with a substantially L-shaped cross-section, which fills the narrower U-leg 4 and the U-web 3.

Both walls of the U-shaped web 3 have through holes that are aligned with one another, which are distributed over the length of the guide rail at even or uneven intervals. The metal rail 7 also has through holes that are aligned with them. A screw 8 is passed through these holes, which allows the guide rail to be attached to certain points on the window reveal.

The guide rail shown in Figure 1 has through holes 9 on the wider U-leg 5, which are arranged at equal or uneven distances from one another over the length of the guide rail. At the corresponding points, the metal rail 7 has blind holes 10 with internal threads , into which screws can be screwed through the window frame.

The metal rail 11 inserted in the embodiment according to Figure 2 has a substantially U-shaped cross-section and completely fills only the narrower U-leg, while it only partially fills the U-web and the wider U-leg.

SO Again, the U-web 3 of the guide rail has through holes 12 and the U-web of the metal rail 11 has aligned through holes through which screws are passed for screwing into the window reveal.

The outer wall of the wider U-leg S* also has through holes 14 at intervals along the guide rail and there are the Mstalisshien* 11 flush-mounted holes with internal thread 15, so that screws can be inserted through the window frame.

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1 can be screwed into the metal rail.

The features described work together to ensure a durable attachment of the guide rails to the window reveal and the window frame and to provide increased security against burglary.

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Claims (7)

Il•«••hUt ·t ·* · I9 ·••üChe•• ■ «*-7-CtZa &eegr; sPrS 1. Guide rail for roller shutters with a substantially hollow U-shaped cross-section, characterized in that it contains a metal rail (7, 11) inserted into the hollow space over at least part of its length. 2. Guide rail according to claim 1, characterized in that -the
owns. that -the metal rail (7, 11) has an L- or U-shaped cross-section 3. Guide rail according to claim 1 or 2, characterized in that the U-shaped section (3, 3') of the guide rail (1, 1") and the metal rail (7, 11) are penetrated by aligned through-bores for receiving a fastening screw (8, 16). { ■ 4. Guide rail according to one of claims 1 to 3, characterized in that one of the U-legs (5, 5') of the guide rail ( ^1/11 ) has through openings (9, 14) for fastening screws and the metal rail (7, 11) has a threaded bore (10, 15) with an internal thread aligned therewith. 5. Guide rail according to one of claims 1 to 4/ characterized in that the cross section of the guide rail in the case of a metal rail which only fills one U-leg (4/ 4') has at least one reinforcing web (2) which penetrates the cavity and connects two opposite inner walls of the guide rail. 6. Guide rail according to one of claims 1 to 5, characterized in that it is made of a plastic material stands. 7. Guide rail according to one of claims 1 to 6, characterized in that the metal rail has at least one &PSgr;''-'" ^--■■■■■■:-- -■- -■■ ; _: -;-, . ,&ngr; ^ >-&tgr;;
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