EP3489449B1 - Grille de protection d'objets destinée à l'installation ultérieure dans les ouvertures murales - Google Patents

Grille de protection d'objets destinée à l'installation ultérieure dans les ouvertures murales Download PDF

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Publication number
EP3489449B1
EP3489449B1 EP18199692.7A EP18199692A EP3489449B1 EP 3489449 B1 EP3489449 B1 EP 3489449B1 EP 18199692 A EP18199692 A EP 18199692A EP 3489449 B1 EP3489449 B1 EP 3489449B1
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EP
European Patent Office
Prior art keywords
plug
lamella
recess
wall
object protection
Prior art date
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EP18199692.7A
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German (de)
English (en)
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EP3489449A1 (fr
Inventor
Oliver Sommer
Jürgen Hofmann
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Sommer Fassadensysteme Stahlbau Sicherheitstechnik GmbH and Co KG
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Sommer Fassadensysteme Stahlbau Sicherheitstechnik GmbH and Co KG
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/01—Grilles fixed to walls, doors, or windows; Grilles moving with doors or windows; Walls formed as grilles, e.g. claustra
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/01—Grilles fixed to walls, doors, or windows; Grilles moving with doors or windows; Walls formed as grilles, e.g. claustra
    • E06B2009/015—Mounting details

Definitions

  • the present invention relates to an object protection grille for subsequent installation in wall openings
  • Safety grilles for wall openings exist in a wide variety of designs.
  • a security grid for such requirements is in the DE 10 2009 045 984 A1 described. Accordingly, pipes running transversely are provided within a building opening, which have through-openings for receiving a threaded rod crossing the respective pipe in the vertical direction. The threaded rod is locked relative to the pipe by a large number of nuts provided on the threaded rods. Furthermore, slats are placed on the threaded rods and also held in place by means of nuts provided on the threaded rods. However, due to the large number of loose parts or parts that have to be screwed together, this safety grille is associated with a high level of assembly work.
  • the DE 10 2015 211 702 A1 addresses this problem by using several frame profiles with multiple angles and a large number of recesses, into which the tubes can be inserted and secured in a form-fitting manner.
  • this construction requires the individual parts to be custom-made.
  • the AU 19951 83A describes an object protection grille for retrofitting in wall openings, in particular for securing a remaining cross-section of a wall opening with cable bushing, with a first slat, with a second slat, which is arranged in a common plane at an angle to the first slat, with the first
  • the slat has a first plug-in recess and the second slat has a second plug-in recess aligned opposite the first plug-in recess, so that the first and second slats can be plugged into one another, with a third plug-in recess being provided on at least one section of the slats, and with a wall connection element which has a plug-in section and a mounting portion attachable to a wall, wherein the mating portion includes a fourth mating recess.
  • the AU 19951 83A thus describes a kit for forming a safety grille with two mutually orthogonal slats and a frame arranged all around.
  • the slats are inserted into the frame via recesses.
  • the frame can have holes so that the frame can be screwed to a wall.
  • the U.S. 2,991,707 A describes a ventilation grille with mutually orthogonal slats and a frame.
  • the slats can be clamped into the frame and attached using other spring-loaded brackets.
  • the present invention is based on the object of specifying an object protection grid that can be flexibly assembled from individual parts and easily retrofitted.
  • this object is achieved by a protective object grating with the features of claim 1.
  • a security grille for retrofitting in wall openings in particular for securing a residual cross-section of a wall opening with a cable bushing, with a first slat, with a second slat, which is arranged in a common plane at an angle to the first slat, with the first slats have a first plug-in recess and the second slat has a second plug-in recess aligned opposite to the first plug-in recess, so that the first and second slats can be plugged into one another, with a third plug-in recess being provided on at least one end section of the slats, and with a wall connection element which has a plug-in section that can be inserted into the third plug-in recess and a fastening section that can be fastened to a wall, the plug-in section having a fourth plug-in recess and being designed in such a way that the lamellae are firmly fixed
  • the idea on which the present invention is based is to design a protective grating for objects with a plurality of individual slats that can be plugged together and wall connection elements that can be plugged into them at the ends.
  • the geometry of plug-in recesses provided for plugging together is used for stiffening the grid itself.
  • an object protection grille can be flexibly assembled from individual slats that can be selected and/or cut to length, possibly only at the installation site, with the slats being flexibly fastenable, in particular individually, to a wall having the wall opening.
  • the wall can serve as a rear stop for the slats at the edge of the wall opening.
  • both the first and the second slat or, in the case of several slats, both the first and the second slat are fastened to the wall with a wall connection element.
  • a wall connection element is provided on both end sections of a slat. Due to the preferably individual attachment to the wall, the slats are set individually. However, a grouped attachment is also conceivable, for example two or more slats with a common wall connection element. However, no surrounding frame is provided.
  • the slats also hold each other in the respective crossing area, so that despite the comparatively simple mechanical structure, a very high burglary-inhibiting effect, for example in accordance with resistance class RC5, can advantageously be provided.
  • a lamella is to be understood, for example, as a flat profile. However, lamellae that are bent or curved once or multiple times are also conceivable.
  • An insertion recess is to be understood in particular as a recess running in the transverse direction or at least obliquely to the longitudinal direction of the lamella, which extends continuously from one edge of the lamella, preferably over the entire thickness, but not over the entire width of the lamella.
  • the plug-in recess can extend over half the width to a middle of the lamella. A first and a second lamella can thus be plugged into one another without protruding.
  • the third plug-in recess can be designed differently. In particular, it is designed to be adapted to the wall connection element or matched to it. In particular, the third plug-in recess has a smaller depth in comparison to the first or second plug-in recess.
  • first and second slats or all crossing slats can be arranged, at least essentially, perpendicularly to one another.
  • other configurations are also possible, so that, for example, slats running obliquely or also, at least in sections, roundly are possible.
  • Such an object protection grille according to the present invention can be produced, for example, with a method for the subsequent installation of an object protection grille, with the following steps: arranging a first slat, which has a first plug-in recess, and a second slat, which has a second plug-in recess, in a common plane crosswise, the first and second plug-in recesses being plugged into one another in a crossing area; Inserting a plug-in section of a wall connection element into a third plug-in recess provided on at least one end section of at least one of the first and second slats; and fastening a fastening section of the wall connection element to a wall in such a way that the slats are thus fixed in a form-fitting manner on the wall.
  • An object protection grid according to the invention is particularly suitable for subsequent installation in wall openings due to its flexible mountability. Above all, it is suitable for flexible adaptation to the conditions at the installation site, for example even if there are already through lines there and the remaining cross-section is to be secured against unauthorized entry or objects being thrown in.
  • the wall connection element is preferably connected to concrete walls, although other wall materials are also possible.
  • the wall connection elements are, for example, doweled and/or screwed to the wall.
  • the slats can be prefabricated in different lengths with corresponding plug-in recesses provided therein. However, it would also be conceivable to provide the slats as endless products or goods that can be individually shortened. In both cases, the slats can be adapted to the installation situation, especially the individual routing of lines and/or the individual size and shape of a wall opening can be selected during installation.
  • first and second slats can be provided as vertical and horizontal slats.
  • the vertical slats have, for example, plug-in recesses in the form of slots for the insertion of horizontal slats, and vice versa.
  • the object protection grid is preferably mounted on a protected inside of the wall.
  • the plug-in section of the wall connection elements is designed with a further fourth plug-in recess.
  • a wall connection element designed as a wall connection bracket can have a partially continuous slot on the plug-in section on one side.
  • the slot can in particular also extend over a corner or edge of the wall connection bracket, so that the slat can be received in the slot in both dimensions of the wall connection bracket.
  • Such a wall connection element is inserted into the second slat at the end section and then fastened to the wall.
  • this can, for example, be pushed over the slat into the third plug-in recess at the end and then screwed into a concrete wall with steel dowels.
  • the same can also be provided on an end section of the first lamella and/or on the respective second end sections of the first and/or second lamella.
  • both end sections of the second slat protrude beyond the wall opening, both end sections are preferably fastened with wall connection elements.
  • the first slats can also be attached to the wall in the same way as the second slats with wall connection elements.
  • Steel for example S 235 or S 335, preferably galvanized or painted, is particularly suitable as the material for the object protection grid, in particular for the slats and/or wall connection elements. Depending on the required resistance class, other materials can of course also be used.
  • the wall connection elements are, for example, far away from the wall opening and therefore cannot be attacked from the outside, they can optionally also be made from a material of lower strength, for example brass, cast iron, aluminum or plastic.
  • the first and second plug-in recess are each designed as a straight slot partially penetrating a lamella cross-section.
  • the width of the slot essentially corresponds to the thickness of the slats.
  • the adjustment of the width of the slot to the thickness of the lamella is possible with a predetermined fit, preferably with a clearance or transition fit.
  • the third plug-in recess is aligned in the opposite direction to the second plug-in recess. This ensures easy insertion. Furthermore, a form fit is possible in this way. If necessary, the orientation can also be only partially opposite or oblique.
  • the plug-in section is designed in such a way that a lamella can be fixed with it in all directions or spatial directions.
  • the plug section thus preferably forms a stop in all three translatory degrees of freedom.
  • An at least partial definition of rotational degrees of freedom is also possible.
  • the wall connection element is designed as a wall connection angle, with the plug-in section being provided on a first angle arm and the fastening section on a second angle arm.
  • processed standard angles can also be used advantageously as wall connection elements.
  • the plug-in section has a fourth plug-in recess made in the first angle arm, which is oriented opposite to the third plug-in recess.
  • the fourth plug-in recess can be milled into a standard angle.
  • the third plug-in recess is designed as a straight slot that partially penetrates a lamella cross-section.
  • the width of the slit essentially corresponds to the angular strength, with different adjustments to the fit being possible, for example as a clearance or transition fit.
  • the fourth plug-in recess is designed as a straight slot that partially penetrates a cross section of the plug-in section.
  • the width of the slot essentially corresponds to the thickness of the lamella, with different adjustments to the fit also being possible, preferably as a clearance or transition fit.
  • a securing element for securing the plug connection is provided in the crossing area. In this way, the plug connection is secured against undesired or unauthorized loosening.
  • the securing element has a flat connector.
  • the flat connector can be fastened to the first slat in such a way that it extends parallel to the first slat over the second slat in the crossing area and thus secures the second slat in a form-fitting manner in the first plug-in recess.
  • the flat connector is, for example, a U-shaped flat bar with through-holes for attachment in the area of the U-legs.
  • the securing element has two flat connectors arranged opposite one another in the crossing area on both sides of the first lamella.
  • At least one of the two flat connectors can have at least one threaded hole, so that the two flat connectors can be connected and fastened with a screw.
  • a hole is also provided in the first slat for attachment, a screw being inserted on a first side into a hole in the first flat connector, passed through the hole in the slat and screwed into a threaded hole in a second flat connector on the second side.
  • a tool attachment provided for fastening the flat connector is provided with a fuse insert which is driven in with a non-positive fit in the assembled state.
  • a fuse insert which is driven in with a non-positive fit in the assembled state.
  • an Allen key or Torx key can be secured with a steel ball that is driven or driven into it with a press fit.
  • the securing element has a clip holder, which includes a U-shaped clip that fastens the first lamella and a clip that covers the crossing area.
  • the bracket holder has a first and a second U-shaped bracket.
  • the U-shaped brackets are provided on both sides of the crossing area. For example, they are each guided through a through-opening in the first slat and fastened to the clamp with both bracket ends. It is also conceivable to run the brackets around the entire depth of the first slat so that they encompass the slat. In this way, a form fit of the U-shaped bracket with the first slat is produced.
  • the U-shaped bracket can be attached to the clip, for example by screwing or welding.
  • the legs of the U-shaped bracket have an external thread, for example.
  • the nuts used for the screw connection are provided on the protected or the inside of the object protection grille, so that they are covered by the clamp on the outside.
  • a cover of the nuts may be provided, which is fastened in the clamp with a suitable fastening means, for example with a countersunk screw.
  • a tool attachment of the fastening means is or is preferably provided with a safety insert after assembly, for example in the form of a steel ball driven in with a press fit.
  • FIG. 1 shows a schematic representation of a section of an object protection grid 1.
  • the object protection grille 1 is a grille which is intended for subsequent installation in a wall opening 20 and has a first slat 2 and a second slat 3 .
  • the two slats 2, 3 are arranged in a common plane of the wall opening 20 at an angle to one another.
  • the first slat 2 has a first plug-in recess 5 and the second slat 3 has a second plug-in recess 6 aligned opposite to the first plug-in recess 5.
  • the plug-in recesses 5, 6, the two slats 2.3, as shown, can be plugged into one another.
  • the first plug-in recess 5 of the first lamella 2 is arranged on a longitudinal side of the first lamella 2 protruding into the plane of the drawing.
  • the second plug-in recess 6 of the second lamella is arranged on the longitudinal edge of the second lamella 3 lying in the plane of the drawing.
  • the first and second slats 2, 3 also each have a third plug-in recess 7 on one end section.
  • the end section and the third plug-in recess 7 are at the upper end of the second slat 3
  • Paragraph 21 of the second lamella 3 is provided, which is provided and designed to rest against the edge of the wall opening 20 .
  • a shoulder 21' is also provided on the end section of the first slat.
  • a wall connection element 8 which has a plug-in section 9 and a fastening section 10 .
  • the plug-in section 9 is designed so that it can be plugged into the third plug-in recess 7 .
  • the fastening section 10 is also designed so that it can be fastened to a wall.
  • the Figures 2A - 2D show the steps for installing an object protection grille. With the steps shown for installation, the object protection grille can be installed or manufactured at the installation site. Of course, additional assembly steps for other elements not shown here can be provided.
  • Figure 2A illustrates a step of arranging a plurality of first slats 2 in a wall opening 20.
  • the first slats 2 are designed as flat profiles which have recesses in the form of plug-in recesses 5 and shoulders 21 at the ends.
  • the assembly takes place on a protected side of the wall opposite to an attack side
  • the first slats are introduced here, for example, vertically into the wall opening 20 .
  • the orientation of the first and second slats 2, 3 is therefore opposite here 1 reversed.
  • the first slats 2 are arranged at a distance from one another which corresponds to a distance between the second plug-in recesses 6 in the second slats 3 .
  • this spacing is regular. In further embodiments, however, irregular or non-uniform distances would also be conceivable.
  • the first slats 2 are aligned plumb and flush to the desired distance and temporarily fixed (e.g. with wooden wedges) so that the ends of the slats rest against the protected wall side with the end sections of the slats.
  • first and second plug-in recesses 5, 6 are each designed as a straight slot that partially penetrates the first and second plug-in recess 5, 6.
  • a width of the slot essentially corresponds, ie with a predetermined fit, in particular a loose fit, to a lamella thickness of the first and second lamellae.
  • the wall opening 20 is of approximately square design, purely by way of example.
  • the second lamellae are therefore designed essentially the same as the first lamellae.
  • the first and second slats 2, 3 can also be individually cut to length or adjusted in length to suit the size of the wall opening 20.
  • Both the first slats 2 and the second slats 3 each have a shoulder in their end sections, which is located at the edge of the wall opening 20 is supported, so that by positioning and plugging into one another, on the one hand a rear or wall-side stop is formed and on the other hand the vertical and horizontal position of the slats 2, 3 in the wall opening 20 is largely predetermined.
  • a double fit should be avoided so that sufficient play is provided in practice.
  • Figure 2C shows a further step of the assembly, the wall connection elements 8 with the plug-in section 9 being plugged into third plug-in recesses 7 provided on one end section of the slats 2,3.
  • the third plug-in recesses 7 are aligned opposite to the second plug-in recesses 6 .
  • the wall connection elements 8 can, as in the embodiment shown here (see also 2D ) are provided both on the first and on the second slats 2, 3.
  • wall connection elements 8 are provided here partly as double elements for two slats and partly as individual wall connection elements 8 for a single slat.
  • three or multiple elements for three or more slats would of course also be conceivable.
  • the wall connection elements 8 are each fastened to the wall with their fastening section 10 beyond the wall opening 20, for example by dowelling with suitable bores, dowels and screws.
  • the wall connection element 8 is designed here as a wall connection angle, with the plug-in section 9 being provided on a first angle arm and the fastening section 10 on a second angle arm.
  • the plug-in section 9 has a fourth plug-in recess 11 made in the first angle arm, which is oriented opposite to the third plug-in recess 7 .
  • the fourth plug-in recess 11 is designed as a straight slot that partially penetrates a cross-section of the plug-in section 9, the width of which essentially corresponds to the thickness of the lamella.
  • the third plug-in recess 7 in the lamella is also designed as a straight slot that partially penetrates a lamella cross-section, the width of which essentially corresponds to the angular strength.
  • the wall connection elements 8 embodied as wall connection brackets are plugged into the third plug-in recesses 7 provided for this purpose on the protected side of the wall over all the slat ends.
  • Bolt-through anchors of dimension M1O with countersunk head are provided as fastening means for wall fastening, for example in a wall made of concrete. Drillings in the wall are carried out according to the dowel specifications (diameter, drilling depth). the dowels are then inserted through the holes provided for this purpose in the fastening section into the wall connection bracket, preferably with washers, and the dowel is tightened according to the permissible tightening torque.
  • FIG. 2D shows the final assembled state of the object protection grille 1, wall connection elements 8 being provided on all slats 2, 3 at the end, purely by way of example.
  • individual slats can also only partially protrude beyond the wall opening 20, so that the slats can sometimes only be attached to a wall connection element 8 on one side.
  • a T-connection with a second cut to length or shortened end produce intersecting lamella, which in relation to 6 will be dealt with in more detail.
  • a step of attaching securing elements 12 in the crossing areas 4 is also provided. These are used to secure the plug connection, so that a form fit is also produced in the crossing areas 4 .
  • the securing elements 12 are provided at all crossing areas on the vertical slats 2 in the form of two flat connectors, which are each screwed on with two Allen countersunk screws. Finally, steel balls are pressed or driven into the hexagon socket of all screws using a pressing or driving tool.
  • the object protection grille 1 is designed for subsequent installation in wall openings, preferably if there are already through lines there and the remaining cross-section is to be secured against unauthorized entry or objects thrown in.
  • the lattice construction is mainly attached to concrete walls and there either by means of suitable frame parts or short parts as wall connection elements 8, which are dowelled to the adjacent wall.
  • the frame or short parts are formed with milled slots as a fourth plug-in recess 11, into which the first slats 2 can be used in the form of vertical flat slats.
  • the vertical slats 2 have first plug-in recesses 5 in the form of slots for inserting horizontal second slats 3.
  • the slats are secured in such a way that the wall connection elements are not continuously slotted on at least one side of the angle designed as a plug-in section. Rather, the slots are closed at the end of the male portion.
  • the brackets are pushed over the slats and then screwed to the steel dowels provided in the wall.
  • a peripheral frame is dispensed with.
  • the horizontal slats 3 are pushed into the prepared slots 5 of the vertical slats 2.
  • the individual wall connection elements 8 or angles pushed over the respective ends of the slats 2, 3 and screwed with wall plugs.
  • flat connectors 13 in the form of slotted flat pieces or flat bars are screwed to the vertical slats and the slats are thus secured against one another.
  • the material used for the slats 2, 3 and/or wall connection elements 8 is, for example, predominantly steel S 235 or S 335, in particular galvanized or painted.
  • the adjoining wall is a solid wall made of concrete or brickwork in accordance with the requirements for the surrounding wall according to DIN EN 1627:2011-09: Masonry wall according to DIN 1053-1 Reinforced concrete wall according to DIN 1045-2 resistance class nominal thickness compressive strength of the stones mortar group (min) nominal thickness strength class RC5 ⁇ 240mm ⁇ 20 DM ⁇ 140mm C12/C15
  • the wall opening 20 Before assembly, the wall opening 20 must be checked for damage that could affect the general strength.
  • fasteners are made taking into account the forces to be transmitted, the strength of the adjacent component (masonry, concrete) and the movements occurring in the connection joint, e.g. B. by thermal expansion made.
  • FIG. 3 shows a perspective detail view of crossing areas 4 according to an embodiment of an object protection grid 1.
  • a securing element 12 for securing the plug connection of the first and second slats 2, 3 is provided.
  • the securing element 12 is a flat connector 13, which with respect to FIG figure 5 will be dealt with in more detail.
  • Such a flat connector 13 can be fastened to the first lamella 2 in such a way that it extends parallel to the first lamella 2 over the second lamella 3 in the crossing region 4 and thus secures the second lamella in the first plug-in recess 5 in a form-fitting manner. In this way, the first and second slats 2, 3 are firmly coupled to one another in their plug-in connections.
  • the securing element 12 has two flat connectors 13 arranged opposite one another in the crossing region 4 on both sides of the first lamella 2 . These can thus be screwed together for assembly.
  • Such an object protection grid thus has resistance class RC 5 according to DIN EN 1627, for example.
  • FIG. 4 shows a plan view with a cross section and a longitudinal section of an object protection grid 1 according to a further embodiment.
  • first and second slats 2, 3, wall connection elements 8 and securing elements 12 are shown as examples.
  • the different variants are used in particular for individual adaptation, for example to the needs of cable routing that passes through the wall opening.
  • the lattice spacings can thus be set more closely, while recesses in the lattice for line routing are locally possible in the most varied of sizes.
  • the distances between the first and second slats 2, 3 can be set with one another by means of wall connection elements 8 that are different or have different widths.
  • the position of the first and second plug-in recesses 5, 6 is adjusted accordingly.
  • the design of the wall connection elements 8 can be seen in section. These are designed here as 90° angle connectors, with the plug-in section 9 having the fourth plug-in recess 11 . This fourth plug-in recess extends beyond the 90° bend of the angle connector and thus also partially into the wall connection section 10.
  • the second slat 3 shown from the side in the illustration A-A extends in the drawing shown at one end section (upper in the illustration) in the height direction up to an end of the fourth plug-in recess 11 lying in the fastening section 10 of the wall connection element 8.
  • the fastening section 10 is already flat against the wall in this area. Beyond the fourth plug-in recess 11, the fastening section 10 is connected to the wall.
  • connection of the fastening element 10 to the wall is provided here with a screw which is screwed into a profile 22 defining an edge of the wall opening 20 .
  • the profile 22 shown represents part of the wall containing the wall opening 20.
  • the fourth plug-in recess 11 extends approximately to the middle of the plug-in section 9.
  • the height of the remaining material of the plug-in section 9 corresponds to a height of the third plug-in recess in the second lamella 3 shown laterally in section AA
  • the paragraph 21 of the second lamella 3 also rests on the wall, or here the profile 22, in this state.
  • the slat 3 is thus fixed to the wall (or here the profile 22) by the crossed plug-in connection with the wall connection element 8 and its fixing via the fixing section 10.
  • connection of the first slat 2 to the wall (or profiles) via wall connection elements 8 is provided in the same way on both end sections of the first slat 2.
  • securing elements 12 are also provided.
  • the different securing elements 12 serve, on the one hand, to adapt to different local spatial conditions and, on the other hand, to vary the alignment of the fastening means used to fasten the securing elements 12 .
  • the 3 Flat connectors 13 shown are provided as securing elements 12 . In some cases, these are at points where a single horizontal slat, for example for cable bushings, is locally excepted, by a reference to 6 T-connector explained in more detail below.
  • bracket holders 16 for connecting the slats 2 , 3 are provided in an upper half of the object protection grid 1 . These are related to 7 explained in more detail.
  • figure 5 shows a plan view with cross and longitudinal section of a connecting element.
  • This connecting element is formed here with U-shaped flat connectors 13 provided on both sides of a lamella 2 .
  • a flat connector 13 is in the form of a flat bar with a recess entering at one edge and extending approximately to the middle designed in lamella thickness with clearance fit. The recess is milled, for example, so that a U-shape of the flat connector 13 is created.
  • a mounting hole is provided in the area of the resulting U-legs.
  • a first flat connector 13A has a countersunk attachment for countersinking a countersunk screw head.
  • a countersunk screw used for this purpose can be an M10 countersunk screw according to DIN 7991.
  • the fastening hole is provided with an internal thread for screwing in the countersunk screw.
  • the lateral flanks of the flat bar are beveled, for example by means of flame cutting. In particular, this makes it more difficult for a lever tool to be applied to the flat connector 13 .
  • FIG. 6 shows a connecting element 12 after figure 5 with fuse insert.
  • a tool attachment 14 of a fastener provided for attachment of the flat connector 13 is provided with a fuse link 15 driven into the tool attachment 14 with a force fit.
  • a fuse link 15 driven into the tool attachment 14 with a force fit.
  • it may also be a safety attachment.
  • a steel ball can be driven in as a fuse insert 15 with a hexagon socket as the tool attachment 14 .
  • FIG. 7 12 shows a top view and a front view of a connecting element according to a further embodiment.
  • FIG. 8 12 shows a top view with cross-section and longitudinal section of a connecting element according to yet another embodiment.
  • the securing element 12 is designed here as a clip holder 16 which comprises a U-shaped clip 17 which fastens the first lamella 2 and a clip 18 which covers the crossing region 4 .
  • the bracket 17 can, for example, be a round steel bracket according to DIN 3570, for example with the dimension M10.
  • the bracket holder 16 has a first and a second U-shaped bracket 17, 17', which are fastened to the clamp 18 on both sides of the crossing region 4 with the first slat 2 and with the two bracket ends 19, 19'.
  • the clip 18 For fastening the bracket ends 19, 19', the clip 18 has through-holes, behind which a nut is placed on the bracket ends 19, 19'.
  • a C-shaped cover plate is provided to cover the nuts, which is fastened to the clamp 18 with a countersunk screw.

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  • Civil Engineering (AREA)
  • Connection Of Plates (AREA)
  • Details Of Indoor Wiring (AREA)

Claims (15)

  1. Grille de protection d'objets (1) destinée à un montage ultérieur dans des ouvertures murales, en particulier pour bloquer une section transversale restante d'une ouverture murale avec passage de conduite,
    comportant une première lamelle (2),
    comportant une seconde lamelle (3) qui est agencée dans un plan commun à un certain angle par rapport à la première lamelle (2), dans laquelle, dans une zone de croisement (4), la première lamelle (2) présente un premier évidement d'emboîtement (5) et la seconde lamelle (3) présente un deuxième évidement d'emboîtement (6) dirigé de manière opposée au premier évidement d'emboîtement (5), de sorte que les première et seconde lamelles peuvent être emboîtées l'une dans l'autre, dans laquelle un troisième évidement d'emboîtement (7) est prévu respectivement sur au moins une partie d'extrémité des lamelles (2, 3), et
    comportant un élément de raccordement mural (8) qui comporte une partie d'emboîtement (9) pouvant être emboîtée dans le troisième évidement d'emboîtement (7) et pouvant être fixée à un mur, dans laquelle la partie d'emboîtement (9) présente un quatrième évidement d'emboîtement (11) et est réalisée de telle sorte que les lamelles (2, 3) peuvent ainsi être fixées au mur par complémentarité de formes.
  2. Grille de protection d'objets selon l'une des revendications précédentes, caractérisée en ce
    que les premier et deuxième évidements d'emboîtement (5, 6) sont respectivement réalisés sous forme d'encoche droite traversant en partie une section transversale de lamelle.
  3. Grille de protection d'objets selon la revendication 2, caractérisée en ce
    qu'une largeur de l'encoche correspond sensiblement à une épaisseur de lamelle.
  4. Grille de protection d'objets selon l'une des revendications précédentes, caractérisée en ce que le troisième évidement d'emboîtement (7) est dirigé de manière opposée au deuxième évidement d'emboîtement (6).
  5. Grille de protection d'objets selon l'une des revendications précédentes,
    caractérisée en ce
    que la partie d'emboîtement (9) est réalisée de telle sorte qu'une lamelle (2, 3) peut ainsi être fixée dans toutes les directions de l'espace.
  6. Grille de protection d'objets selon l'une des revendications précédentes, caractérisée en ce que l'élément de raccordement mural (8) est réalisé sous forme d'équerre de raccordement mural, dans laquelle la partie d'emboîtement (9) est prévue sur une première aile d'équerre et la partie de fixation (10) est prévue sur une seconde aile d'équerre.
  7. Grille de protection d'objets selon la revendication 6, caractérisée en ce
    que le quatrième évidement d'emboîtement (11) est inséré dans la première aile d'équerre de la partie d'emboîtement (9), et le troisième évidement d'emboîtement (7) est dirigé de manière opposée.
  8. Grille de protection d'objets selon la revendication 7, caractérisée en ce
    que le troisième évidement d'emboîtement (7) est réalisé sous forme d'encoche droite traversant en partie une section transversale de lamelle, dont la largeur correspond sensiblement à une épaisseur d'équerre.
  9. Grille de protection d'objets selon la revendication 7 ou 8,
    caractérisée en ce
    que le quatrième évidement d'emboîtement (11) est réalisé sous forme d'encoche droite traversant en partie une section transversale de la partie d'emboîtement (9), dont la largeur correspond sensiblement à l'épaisseur de lamelle.
  10. Grille de protection d'objets selon l'une des revendications précédentes, caractérisée en ce que dans la zone de croisement (4) est prévu un élément de blocage (12) destiné à bloquer la liaison par emboîtement.
  11. Grille de protection d'objets selon la revendication 10, caractérisée en ce
    que l'élément de blocage (12) présente un élément de raccordement plat (13) qui est destiné à être fixé avec la première lamelle (2) de telle sorte qu'il s'étend au-dessus de la seconde lamelle dans la zone de croisement parallèlement à la première lamelle et qu'il bloque ainsi la seconde lamelle dans le premier évidement d'emboîtement par complémentarité de formes.
  12. Grille de protection d'objets selon la revendication 11, caractérisée en ce
    que l'élément de blocage (12) présente deux éléments de raccordement plats (12) agencés dans la zone de croisement (4) de manière opposée aux deux côtés de la première lamelle (2) .
  13. Grille de protection d'objets selon la revendication 11 ou 12,
    caractérisée en ce
    qu'un embout d'outil (14) destiné à fixer l'élément de raccordement plat est muni, à l'état monté, d'un embout de blocage (12) entraîné de manière forcée.
  14. Grille de protection d'objets selon la revendication 10, caractérisée en ce
    que l'élément de blocage (12) présente un support d'étrier (16) qui comprend un étrier en forme de U (17) fixant la première lamelle (2) et un collier (18) recouvrant la zone de croisement (4).
  15. Grille de protection d'objets selon la revendication 14, caractérisée en ce
    que le support d'étrier présente un premier et un second étrier en forme de U (17, 17') qui sont fixés des deux côtés de la zone de croisement (4) avec la première lamelle (2) et avec le collier (18) avec chacune des deux extrémités d'étrier (19, 19').
EP18199692.7A 2017-11-22 2018-10-10 Grille de protection d'objets destinée à l'installation ultérieure dans les ouvertures murales Active EP3489449B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202017006046.9U DE202017006046U1 (de) 2017-11-22 2017-11-22 Objektschutzgitter zum nachträglichen Einbau in Wandöffnungen

Publications (2)

Publication Number Publication Date
EP3489449A1 EP3489449A1 (fr) 2019-05-29
EP3489449B1 true EP3489449B1 (fr) 2022-12-07

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Application Number Title Priority Date Filing Date
EP18199692.7A Active EP3489449B1 (fr) 2017-11-22 2018-10-10 Grille de protection d'objets destinée à l'installation ultérieure dans les ouvertures murales

Country Status (2)

Country Link
EP (1) EP3489449B1 (fr)
DE (1) DE202017006046U1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2991707A (en) * 1957-08-20 1961-07-11 Mc Graw Edison Co Air directing louver device
AU1995183A (en) * 1982-11-04 1984-05-10 Comil Pty. Ltd. Security screen
DE102009045984B4 (de) 2009-10-26 2021-09-02 Sommer Metallbau-Stahlbau Gmbh & Co. Kg Gitter zur Sicherung einer Öffnung in einem Gebäude
DE102015211702A1 (de) 2015-06-24 2016-12-29 Sommer Fassadensysteme-Stahlbau Sicherheitstechnik Gmbh & Co. Kg Rahmenprofilteil, Sicherungsgitter und Verfahren zum Herstellen

Also Published As

Publication number Publication date
DE202017006046U1 (de) 2017-12-01
EP3489449A1 (fr) 2019-05-29

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