EP0807724B1 - Security device for skylight openings - Google Patents

Abstract

The safety device has safety tubes or rods or steel fabric matting fixable on the side walls of the opening. Profiled support sections (1) are mechanically fixed on the inner side walls of the roof opening and can engage with cover sections (6) which cover the mechanical fixing once engaged. The profiled cover sections are provided with sockets for securely holding the safety rods, tubes etc. The profiled support sections are flat longitudinal sections and the cover sections are similar length contoured sections with both sections having hanging and detent engagement devices (3,7,8,9,10) running in the upper and lower longitudinal edge area.

Description

The invention relates to a safety device for a Roof opening, which according to the genus by the generic term of claim 1 is described.

Roof openings must be secured against falling through. Such safety devices prescribed by standards on the one hand to the fall of objects To prevent roof breaks and fall injuries from on the Avoid people working on the roof. On the other hand, should be open Roof openings are closed in such a way that burglar resistance is guaranteed.

From German utility models G 91 05 567 and G 91 10 266 are kits for safety devices for roof openings known in which the opening cross-section of the roof opening secured against falling through with a plank frame and a grid becomes. The plank frame is under an upstand arranged and laid from the outside around the roof opening. A disadvantage of these so-called "under-construction solutions" for securing a roof opening is, however, the first caused by the additional installation of the plank frame constructional enlargement. This can also give the visual impression Suffer. Furthermore, there is an additional installation element additional weaknesses. For example, Leakage problems with the rest of the roof skin, which make additional sealing work necessary.

A safety device is from the German utility model G 91 02 620 known, in which in a separate Fasteners are provided on the inside of the roof frame to which a fall protection can be attached. This The type of securing roof openings also brings Disadvantage of tightness problems compared to the rest of the roof skin with yourself. Furthermore, this type of security device offers only a very limited protection against burglary since the Blocking of the roof opening from the outside relatively is easy to disassemble.

In general, wooden planks have frames because of their material adverse fire properties. Another disadvantage, of the known fall-through devices, affects the The fact that they are usually only as kits for new buildings are provided. Because it is often necessary to manufacture in already Roof breakthroughs against collapse and To secure burglary, the technology exists in this regard a deficit that retrofittable safety devices for roof openings, which are both fall-proof and burglar-proof are and adapted to the respective dimensional situation to be found cannot be proposed or offered yet.

In the German utility model no. 92 10 122 a special grill for Building openings described, the features of the preamble of claim 1 shows. The bars are placed between two base profiles using two cover profiles attached. Here, the base profiles have a U-shape with one facing inwards Grid on both legs. The cover profiles also have a U-shape, but with an outward-facing grid on the legs. The cover profiles are in the Base profiles hammered in to engage.

This type of fastening for bars now has some serious problems when installed horizontally Disadvantages. As can be seen from utility model no. 92 10 122 U1 as a whole, is such a fastening for bars probably best suited for window locks. If you apply this grid horizontally and pull a shock-like load on the Considering bars from above, it becomes clear that the load only from the lower U-legs the base profiles and the cover profiles can be added. A Load distribution on the upper legs of these profiles is also not possible. To the To improve the load capacity, the profiles would have to be made relatively thick-walled, but what the function of the locking principle does not allow, since here a flexibility of Thigh is required.

A further limitation of the system becomes apparent. It cannot be horizontal larger opening cross-sections can be used because the relatively high dead weight of the heavy bars with roller cores can not be carried. A break or deflection only one of the lower legs, the base profile of the cover profile has the above In the event of a load, the entire bracket collapses immediately.

Another disadvantage of the grating device shown in German utility model 92 10 122 U1 is their very low adaptability to different Angular positions of the boundary walls of the roof opening. The inside or outside profiling of the different profile parts causes a rigid locking, due to the rigidity of the material (hammering in) hardly any room for installation Breakthrough limits that are not parallel to each other.

DE-91 04 661 U1 again describes a grille for a window. The profiles of the Fastening devices for the grille are similar to those from the one discussed above Utility model No. 92 10 122 U1 designed, but the cover profile has one double-walled design with grids. Here again there are concerns raised above. Otherwise, this grid is only for the Installation in a window thought; particularly advantageous configurations as Roof penetration protection is not recognizable.

It is the object of the present invention, a specially for roof openings in essential horizontal arrangement to propose suitable safety device that the no longer has the above disadvantages. In particular, such a safety device be provided, the optimized load distribution in the event of impacts, as well as a good one Offers angular adaptability.

The above object is achieved in that the cover profiles to the Support profiles by hanging the cover profiles on the upper longitudinal area and through Snap to their lower longitudinal area to be fastened. By hanging the Cover profiles on the upper longitudinal area and locking on the lower longitudinal edge Bearing points arise on both longitudinal edges of the profiles, which impact from above be able to record. The impact force, for example upon impact with the bars, is increased therefore divided into two positions and therefore each position (hanging area / rest area) reduced by about half: This opens up the possibility of reducing the profiles Manufacture of materials and still a breakthrough-proof device for To make available.

Furthermore, the configuration according to the invention has an advantageous effect in that the hooking and locking process when attaching the cover profiles to the support profiles easily can be done in very different angular positions. The scope of the Roof penetration protection according to the invention is therefore not on such roof openings limited with parallel walls as parallel as possible.

According to a preferred embodiment, the support profiles are the safety device according to the invention flat longitudinal profiles, while the cover profiles are essentially of the same length are. Both profiles show both in the upper and in lower hooks and latching devices on.

The advantage of such profiles is their relative simple and inexpensive to manufacture and continue in that a by the hanging and locking devices easy assembly is guaranteed. Furthermore, such Longitudinal profiles simply at the factory, but also when installing to the specified ones Adjusted lengths and on essentially all inner Side walls of roof openings are attached. The attachment by hanging the cover profiles on the upper longitudinal edge area of the support profiles and locking on their lower longitudinal edge creates a wide range of applications, whatever the angular situation on the inside wall of the roof opening. Such inner side walls are not regularly vertical to the roof surface. Rather, there are often varying angular situations given, especially when attached to breakthroughs Curbs can exist. It must therefore Problem can be solved, the retrofittable safety device at the angle between that through the security tubes or rods or the steel mesh mat predetermined level and the support profile attachment level to give sufficient scope. Hooking the cover profiles onto the upper longitudinal edge of the support profiles and locking these two profiles at the bottom Longitudinal edge creates a very large scope for varying Angular situations. This retrofits the invention Securing device largely independent of the construction situation encountered.

One possibility, the hanging or locking devices described above to design is the one at the top Longitudinal hanging device on the support profile an upward open longitudinal groove and on the cover profile from one Train hook ledge while at the bottom longitudinal edge running locking device on the support profile from a locking groove with upper and lower snap extensions and on the cover profile a locking bar that can be brought into engagement with the locking extensions consists.

The design of the upper hanging device as a longitudinal groove and hook bar creates a weight pressure distribution on the whole Profile length. So that even at relatively low Dimensions and material thicknesses of the profiles are relatively large loads be included. The mechanical fastenings are completely covered by the cover strip after snapping into place. The Burglar resistance is given because the mechanical fastenings, for example from screws, rivets or all similar fasteners may not exist are more accessible from the outside. If special tightness requirements are of course also possible the support bar without damaging the roof opening add, e.g. by gluing or similar acting Joining measures.

The above-mentioned invention has a particularly advantageous effect Design of the locking devices at the bottom Long edge of the profiles. The locking device is on the support profile from a notch with upper and lower notches. If the safety device is unloaded in the upper Hook-in device hooked in and locked at the lower longitudinal edge the upper latching extension on the support profile comes with a upper undercut of the locking bar engages and secures so insoluble the cover profile on the support profile. At a Weight load if for example a person or a heavy object on the safety tubes or rods or the steel mesh mat falls, experiences the cover profile and in particular whose lower section with the locking bar a movement down with a lower undercut engages with the lower catch extension of the cover profile is coming. This will also cause the locking connection to slip a weight load prevented. The pair of profile strips also carries now the weight of both the upper hanging device as well as on the lower locking device. As this also with the lower locking device over the entire length of the Profiles happening can accommodate relatively large loads become.

The cover profile is preferably angled in the central region Contour profile. This configuration of the cover profile is mounted between this and the support profile in the Condition enough space for housing the mechanical Fastening the support profile and those protruding into this room Safety tubes or rods or the rod ends of the Steel mesh mat and its brackets created.

The receptacle for the security rods or tubes or the Steel mesh mat in the cover profile are preferred according to one Design of the securing device formed like a slot. The elongated holes extend perpendicular to the Longitudinal axis of the cover profile. Through this training is a Secured implementation of the security rods or tubes or the rod ends of the steel mesh mat possible through the cover profile, depending on the length of the holes, a margin for the angular arrangement of the cover profile with respect to the securing rods or pipes remains. Such a configuration bears significantly contribute to the installation on roof openings with different Flexible design of side wall angles.

To attach the support bar to the inner side walls of the Roof openings are, for example, with screws or rivets are fastened in the support bar holes for Perform these fasteners provided.

The safety bars or tubes or the ends of the steel mesh mat must be behind their mounting holes in the cover profile secured against being pulled out. This is advantageously done by securing means, preferably clamping rings, Nuts, notched rivets or grooved pins and especially at the steel mesh mat by bending the rod ends and the Use of anti-slip devices. The rods or tubes can already be factory-made with the aforementioned securing devices be attached to the cover profile. After locking the cover profile the securing means are located with the rods on the support profile in the interior between the profiles and are from no longer accessible outside. In this regard, too Burglar security guaranteed.

According to an advantageous embodiment of the invention at least one across the securing rods or tubes Support web through which the rods or tubes pass.

From a certain length, such as from 1.5 to 2 m, there is a risk that, because of the elasticity and flexibility of the rod or. Pipe material striking the safety device Body causes an instantaneous or permanent deformation and falls through the grate. It is also at Large lengths of the rods or tubes are much easier to do to bend apart violently, including of course burglar resistance suffers. To solve these problems, a Support web mentioned above, the holes for the rods or Has tubes, applied in the transverse direction over the rods or tubes. The bars go through the mounting holes in the support web through; if, for example, a support bridge in the middle the bars are attached and attached is a bend apart the rods or tubes are no longer possible. Depending on the length the rods or tubes can of course also have several supporting webs be used.

An important task of the support bridge is its function as Load balancer. The load that occurs when an object hits acts on, for example, only one or two rods or tubes, is distributed to all rods or tubes through the support web; breakthrough security is increased.

Different types of support bars can be used. On Flat bar with through holes for the bars or tubes for example as a simple embodiment of the support web conceivable. Furthermore, the support web can have a hollow cross section, in particular a U-shaped cross section and through holes for the rods or tubes.

The support web is advantageously so on the rods or Tubes locked so that it can no longer be moved sideways. There are also various design options for such a fastening. Welding is a simple variant of the support web on two rods or tubes, namely preferably on the two outermost, although the free one Rotation of these rods or tubes is no longer possible however, a secure hold of the support web is guaranteed.

There is also the possibility of some rods or pipes Places that are next to the through holes in the support web to deform mechanically in such a way that a bulge arises Prevent the web from moving sideways. With the flat bar For example, the pipe can be squeezed to the left and right of the web be, while at a U-shaped cross section of the A pinch point within the web profile is sufficient can.

Also attached to the bars or tubes and immovable there attached clamps or clamps can be used when securing of the web are used.

A particularly high level of security against burglary guarantees Embodiment according to the invention, in which in the securing rods or pipes and / or a roller bar in the hollow support web is introduced. The rods or tubes as well as the support web are hollow inside, the roller bar is simply in this Cavity inserted. Such a roller bar can, for example are made of a very hard metal. The effect of Rollstick is the following: Is someone trying the sticks or To saw through pipes or the support web, this is the case with the outside Hollow body just barely possible because it is held on the outside can be and therefore sufficient resistance for the saw movement forms. Once the bars or the support webs sawed through, the saw blade hits the roller bar, the is freely rotatable in the cavity. The rolling stick will be everyone Execute longitudinal movement of the saw blade as a rotary movement, and the saw blade cannot be held because the stick is practical always rolling along it. This is a saw through this Construction has become practically impossible. Even during use a hand angle grinder is cutting the safety tubes made considerably more difficult by the effect described above.

Fig. 1

eine perspektivische Ansicht eines Abschnitts einer erfindungsgemäßen Sicherungsvorrichtung für einen Dachdurchbruch, die in einem Aufsetzkranz montiert ist;

Fig. 2

einen Querschnitt durch ein Trageprofil und ein Abdeckprofil einer Darstellung des Einrastvorgangs; und

Fig. 3

ein mit einem Trageprofil verrastetes Abdeckprofil, wobei eine Last auf die Halterung wirkt.

The invention is explained in more detail below using an exemplary embodiment with reference to the accompanying figures. Show it:

Fig. 1

a perspective view of a portion of a security device for a roof opening, which is mounted in a curb;

Fig. 2

a cross section through a support profile and a cover profile of a representation of the locking process; and

Fig. 3

a cover profile locked with a support profile, a load acting on the holder.

1 shows a perspective view of one in one Unmarked upstand mounted safety device according to the present invention. The safety device consists of an angled area of the curb attached support profile 1, in the shown in Condition a cover profile 6 is hooked and locked. The Cover profile 6 takes safety tubes 2 at their ends. The Safety tubes 2 run across the roof opening and go through at a distance from the support or support profile 1, 6 a support web 11 running over them. This Support web 11 increases the stability on the one hand as a load distributor the arrangement and on the other hand prevents bending apart of tubes 2. The tubes 2 are fixed except for those for locking connected to the support bar, freely rotatable in their recordings stored in the cover profile 6 and in the support web 11, as by the Arrows is indicated on the front tube shown.

1 that both the pipes 2 and the support web 5 are hollow on the inside and roller bars 5 record, which, as previously described, the burglar resistance increase because they saw through the pipes 2 and Prevent support web 11. The roller bar 5 is located in the support web 11 freely rotatable on the tubes 2. Also in the pipes 2 Roll rod 5 inserted freely rotatable.

An alternative embodiment is at the bottom left in FIG of a support web 4 shown in sections. This support bridge 4 is a flat bar with through holes for pipes educated.

It is also clear in Fig. 1 that the cover profile 6 with his in the middle angled outer contour the support profile 1 and located on this mechanical, not shown Fastening devices completely covered and inaccessible from the outside makes. Easy removal of the safety device from the outside is therefore no longer possible.

In Fig. 2 is the representation of a cross section through the Wear and cover profile 1, 6 clearly as the bracket of the Safety device is designed according to the invention. In solid Lines are a support profile 1 and one snapped into it Cover profile 6 can be seen. The broken line of the cover profile illustrates the state of the connection shortly before locking, in which the lower part, i.e. the locking bar 8 introduced into the locking groove 9, 10 in the direction of the arrow is, while with the hook bar 7 in the longitudinal groove 3 of the Carrying profile 1 is suspended. Through an opening in the cover profile 6 goes through a safety tube 2, which in the Cover profile 6 and support profiles 1 trained interior a clamping ring 12 is secured against being pulled out.

The upper hanging device consists of the one open at the top Longitudinal groove 3 on the support profile and the one protruding downwards Hook bar 7 on the cover profile. The attachment takes place on this Just put in the hook bar 7 of the Cover profile 6 in the longitudinal groove 3 from above.

In the locked, unloaded state of the safety device is the lower locking device 8, 9, 10 in the in Fig. 2 state shown. The locking bar 8 is located with their upper undercut behind the latching extension 9 of the Carrying profile 1 and is thus secured against being pulled out. Adequate tension is ensured by the elasticity of the respective components ensured. The dead weight of the safety device is in this state by the upper hanging device, i.e. the hook bar 7 and the longitudinal groove 3 held.

FIG. 3 shows the arrangement from FIG. 2 in the state in a load on the pipe structure of the safety device works. Such a load is particularly caused by a heavy object or person exercised by the Safety device against falling through the roof opening is prevented.

Of particular interest in the illustration in FIG. 3 the state of the lower locking device. Because of the load the locking bar 8 pressed down in the direction of the arrow, so that the latching described in FIG. 2 with the upper latching extension 9 of the support profile releases. When releasing this locking However, the locking bar 8 comes with its lower undercut engages with the latching extension 10, which in turn the cover profile 6 slipping out of the support profile 1 is prevented. There is also a safer one here Stop the hook-in or snap-in connection.

As far as the load distribution is concerned, the 2 and 3 embodiments shown are particularly advantageous from that with a load (see Fig. 3) this both through the hanging device 3, 7 as well as through the locking device 8, 10 is added. The load is divided accordingly and because they run the length of the profiles on two Places is included, it is possible to handle larger loads to prevent falling.

In addition, the manufacturing process for assembly is now and installation of a safety device according to the invention in Roof openings described. The wearing profile 1 is in the Roof opening, e.g. in the skylight skylight curb two opposite sides at the same height and the same attached horizontally. The pre-assembled fall-through or burglar alarm, equipped with security tubes 3, cover profile 6, roller bars 5, the ends with special fuses are provided, furthermore with support bars 11 in which roller bars can also be used, is through the roof opening from above or from the room side, So from below, the one already installed in the roof opening Carrying profile 1 introduced such that the cover profile with the Hook bar 7 hooked into the longitudinal groove 3 of the support profile can be. The cover profile 6 is then pivoted in and so pressed against the support profile 1 that it between the locking bar 8 and the locking extension 9 to an inseparable Closure comes in a place inaccessible from the outside.

The latching extension 10 supports the cover profile 6 when initiated Load for the safety tubes 2 at the bottom as it has already been described above. Furthermore, the cover profile is blocked 6 additionally access when trying to lock using a tool.

Claims (12)

1. A security device for a roof opening, comprising:

   a) security tubes or rods (2) or a welded wire mesh, which may be fastened to the side walls of a roof opening, in particular of a tubbing ring;

   b) bearing profiles (1) mechanically fastened to said side walls of said roof opening;

   c) and covering profiles (6) provided with receptacles for holding the security rods or tubes (2) or welded wire mesh securely, and which once they are locked to the bearing profiles (1) cover the mechanical fastening;
   charcterised in that:

   d) the covering profiles (6) are to be fastened to the bearing profiles (1) by hanging the covering profiles (6) on the upper longitudinal section, and by locking them at their lower longitudinal edge.
2. The security device as set forth in claim 1, characterised in that the bearing profiles (1) are flat, longitudinal profiles, and the covering profiles (6) are contoured profiles of substantially the same length, wherein both profiles comprise both hanging and/or locking means (3, 7, 8, 9, 10) running along both the upper and lower longitudinal edge sections.
3. The security device as set forth in one of claims 1 or 2, characterised in that the hanging means (3, 7) running along the upper edge consists of a longitudinal groove (3) on the bearing profile (1), opening upwards, and a hooked ledge (7) on the covering profile (6), while the locking means (8, 9, 10) running along the lower logitudinal edge consists of a locking groove (9, 10) on the bearing profile (1), comprising upper and lower locking protrusions (9, 10), and on the covering profile (6) of a locking ledge (8) which may be engaged with the locking protrusions (9, 10).
4. The security device as set forth in any one of claims 1 to 3, characterised in that the covering profile (6) is a contoured profile, angled in the middle section.
5. The security device as set forth in any one of claims 1 to 4, characterised in that the receptacles for the security rods or tubes (2), or for the rod ends of the welded wire mesh, are formed in the covering profile (6) as elongated holes.
6. The security device as set forth in any one of claims 1 to 5, characterised in that the bearing ledge (1) is provided with bores for passing through fastening means, in particular screws or rivets.
7. The security device as set forth in any one of claims 1 to 6, characterised in that the bearing ledge (1) is fastened to the inner side walls of the roof opening by adhesion or other similar assembly methods.
8. The security device as set forth in any one of claims 1 to 7, characterised in that the rods or tubes (2) are secured behind their point of entry through the covering profile (6) against pulling out of the receptacles by securing means (12), preferably locking rings, nuts, grooved rivets, or the like.
9. The security device as set forth in any one of claims 1 to 8, characterised in that at least one support rail (11) runs transversely to the security rods or tubes (2), the rods or tubes (2) passing through said rail (11).
10. The security device as set forth in claim 9, characterised in that the support rail (11) is a flat bar comprising through-bores for the rods or tubes (2).
11. The security device as set forth in claim 9, characterised in that the support rail (11) comprises a hollow cross-section, in particular a U-shaped cross-section, and through-bores for the rods or tubes (2).
12. The security device as set forth in any one of claims 1 to 11, characterised in that a roll bar (5) is introduced into the security tubes or rods (2) and/or into the hollow support rail (11).

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