METHOD FOR SECURING A BUILDING ELEMENT FRAME TO A BUILDING LINE INSIDE USING AN ANCHOR PLATE AND USE OF AN ANCHOR PLATE TO SECURE A BUILDING ELEMENT FRAME TO A BUILDING LINE INSIDE.

Description

[0001] The invention relates to a securing device for a building element, such as a window or a door, on a building structure, as well as to a system using such a securing device for securing a building element, for example a window equipped with a fall protection device, on a building structure, wherein the securing device can be inserted between the building element and the building structure reveal.

[0002] Fasteners are known that can be used to mount structural elements to a building structure with fall protection and / or burglar-proofing features. Such structural elements can be, for example, windows or doors, over whose frames glass or metal fall protection devices are attached in front of the window or door. An example of fastening a fall protection device to a window or door frame is described in DE 20 2016 101 243 U1. According to DIN 18008-4, this fastening must be capable of withstanding a force of 2.8 kN.

[0003] The force acting on the fall protection device must ultimately be absorbed by the connection between the building structure and the building element. If the fastening is made in concrete or sand-lime brick, a single conventional safety bolt anchored in a building element frame on the one hand and in the building structure reveal on the other hand may be sufficient to absorb the securing force. However, for some materials, such as lightweight materials, brittle plaster or other unfavorable installation situations, such as when the edge distance of the safety bolt to the outer edge of the building reveal is too small, additional anchoring lugs are required. These provide additional attachment points in the window or door reveal to support the force acting on the safety bolt. An example of such an anchoring lug is described in the document DE 10 2015 224 314 A1.

[0004] The known anchoring lug has a bushing movably connected to the lug with a through-hole for receiving the securing bolt. The support point is thus formed by the bushing. Furthermore, the lug has a plurality of offset openings in the form of round holes and a slotted hole through which fastening screws can be screwed for additional anchoring in the structure. Thanks to the movable bushing, the lug can be adjusted in the building reveal in order to position the fastening screws at suitable locations depending on the installation situation. This ensures what is known as a joint-variable attachment. However, this known securing device has the disadvantage in terms of installation that the lug with bushing must be mounted in the building reveal before the building element frame is fixed, which complicates the installation of the building element, such as a window or door.

[0005] Further prior art is known from Anonymous: "Bed Rail Hook Fasteners - Bed Hooks - Paxton Hardware," May 15, 2016, XP055405572. This prior art discloses a possibility for assembling individual parts of a bed frame, but does not provide any suggestions for possible solutions to the problems mentioned above.

[0006] The invention is therefore based on the object of finding a possibility for securing a building element, for example a window or a door, to a building structure, with which it is possible to reliably absorb even large forces acting on the building element frame with simplified assembly and for a wide variety of installation situations, ie with a wide variety of building material and with a wide variety of space conditions, ie with a wide variety of positions of the building element in the building structure reveal.

[0007] This object is achieved by a method having the features of claim 1.

[0008] According to the invention, the support point is formed by the base of a slot-like opening in a tension leg of the anchor plate, which preferably receives the securing bolt in a form-fitting manner, so that the anchor plate can be hooked into the securing bolt when the building element frame has already been inserted into the building reveal. After hooking, the anchor plate can still be freely pivoted so that the openings for receiving the additional fastening screws can be placed in the most suitable positions depending on the installation situation. This allows for maximum safety with simple installation. This has the additional advantage that the anchor plate can be used in an identical design for fastening the building element on both sides of the building reveal, resulting in more economical production.

[0009] The anchor plate preferably has a plurality of openings for receiving the at least one additional fastening screw, which openings are located at different distances and / or angles to the support point. A hole pattern is therefore provided in the anchor plate that can be freely pivoted during installation of the anchor plate, so that in every installation situation, sufficient fastening points can be found for the additional anchoring of the anchor plate that are optimally positioned in terms of strength, resistance to breakouts, and accessibility. This design has the particular advantage that the force can be introduced into the wall over a larger area, with the additional benefit that load peaks in the masonry can be easily avoided by using a so-called "staggered dowel pattern," i.e., a selection of fastening points that are offset from the main force direction.This design is particularly advantageous in the case of brittle masonry.

[0010] In principle, the location of the openings can be varied within wide limits. However, it has been found that if staggered distances between the openings and the support point are provided, ranging between 40 and 120 mm, almost all common building elements can be reliably secured.

[0011] In its simplest form, the anchor plate can be designed as a rectangular plate. However, if the holes for the fastening screws are located in different tension legs of the anchor plate, considerable weight savings can be achieved.

[0012] A particularly simple design of the anchor plate is achieved when the anchor plate has two tension legs that are at an angle to each other, with the slot-like opening for hooking into the securing bolt being located in the connecting area of ​​the two tension legs.

[0013] If the anchor plate has several tension legs that essentially diverge in a fan-like manner, with openings for the fastening screws at each end, this results in increased flexibility in use with minimal material requirements.

[0014] A particularly advantageous embodiment in terms of stability and ease of assembly is obtained when, according to claim 1, two tension legs are located on different sides of a central tension leg having the slot-like opening and are inclined to it at different angles, preferably by 50 to 60 degrees, such as 54 degrees, or 70 to 80, such as 75 degrees.

[0015] A further improvement in functionality is achieved if the anchor plate is equipped with several slot-like openings for hooking into the securing bolt. The slot-like openings are preferably aligned parallel to one another.

[0016] If the slot-like opening is oriented to the longitudinal extension of the tension leg in such a way that it has an extension component in the direction of the external force to be absorbed, this results in the particular advantage that the force acting from the securing bolt on the anchor plate can be used to press the securing bolt against the slot base and thus provide additional security for the anchorage.

[0017] In order to be able to reliably absorb the required securing forces, which are 2.8 kN according to DIN 18008-4, it is sufficient to equip the drawbar with a width of 25 to 35 mm when using conventional materials such as steel, glass fiber reinforced plastic (GRP) or carbon fiber reinforced plastic (CFRP).

[0018] With an anchor plate made of tensile material, such as steel, the thickness can be reduced to a range between 1.5 and 3.5 mm, preferably to 3 mm, so that the anchor plate can be used with the smallest installation gaps.

[0019] If at least one slot-like opening in the tension leg ends in the area of ​​the center line of the tension leg, there is the particular advantage that the anchor plate remains securely positioned due to the effect of gravity after it has been temporarily suspended during assembly.

[0020] The invention further relates to the use of an anchor plate claimed in claim 14 for securing a building element frame, for example for a window equipped with a fall protection device, to a building reveal.

[0021] Several embodiments of the invention are described in more detail below with reference to schematic drawings. They show: Figure 1a scale view of a first embodiment of an anchor plate of the fuse Figures 2 and 3 schematic perspective views to illustrate the installation options for the fuse Figure 4 one of the Figure 1 corresponding, true-to-scale view of another embodiment of an anchor plate of the fuse Figures 5 and 6 schematic perspective views to illustrate the installation options for the fuse according to the further embodiment; Figure 7 one of the Figure 1 similar view of a slightly modified embodiment of the anchor plate; Figure 8 the view of the anchor plate according to Figure 7 with dimensions; Figure 9 one of the Figure 1 similar view of another modified anchor plate; and Figure 10 a sectional view illustrating the installation situation of a window equipped with a fall protection device in a window reveal.

[0022] First, the Figure 10Reference is made to FIG. 1, which shows a horizontal section through a door or window reveal 10 with an inserted door or window frame 12. A glass fall protection device 14 is attached to the window frame. The window frame 12 is anchored laterally by means of a securing bolt 16 in the building structure reveal 10 using dowels.

[0023] F denotes a force that must be absorbed by the fall protection device 14. This force must be transferred to the structure 10 via the safety bolts 16. According to DIN 18008-4, the safety bolts 16 must be able to safely absorb a force of at least 2.8 kN.

[0024] In order to be able to meet the DIN specifications in unfavorable installation situations, such as when the building is made of weaker materials, such as lightweight materials, or brittle plaster, or when the edge distance RA of the securing bolt 16 to the outer edge 18 of the building reveal 10 is too small, an anchor plate 20 is inserted between the window frame 12 and the window reveal 10, which forms a support point 22 for the securing bolt 16. Depending on the installation situation, the anchor plate can be fixed to the building structure or, in this case, the window reveal 10 by means of at least one further fastening screw 24.

[0025] Figure 1 shows a first embodiment of an anchor plate 20, which can be formed, for example, from a steel plate with a thickness in the range between 1.5 and 3.5 mm. It was demonstrated that the required tensile strengths could be readily achieved with a steel plate with a thickness of 3.0 mm.

[0026] Here, the support point 22 (two support points 22-1 and 22-2 are shown) is formed by the base of a slot-like opening 26 (shown as two parallel slots 26-1 and 26-2, one behind the other) in a tension leg 28 of the anchor plate 20, which preferably receives the securing bolt 16 (indicated by a dot-dash line). The width WS of the slot 26-1, 26-2 is therefore essentially as large as the diameter DS of the securing bolt 16. This makes it possible to insert the anchor plate 20 into the securing bolt 16 when the window frame 12 is already inserted into the window reveal 10 when it is pushed into the assembly gap 30 (see Figure 7 ) in the direction of arrow E.

[0027] The anchor plate 20 has holes 32, 34 and 36 at staggered intervals, ie at different distances A32, A34 and A36, for the preferably precise fitting of fastening screws 24 (see Figure 7 ). As further shown by the Figure 1As can be seen, the bores 32, 34 and 36 are located at the respective outer ends of different tension legs 38, 28 and 40 of the anchor plate 20. In detail, the anchor plate 20 therefore has a plurality of tension legs 38, 28 and 40 which essentially extend apart in a fan-like manner, the width B of which is in the range between 25 and 35 mm and at whose respective ends the openings 32, 34 and 36 for the fastening screws 24 are located. This results in distances A32, A34 and A36 in the range between 40 and 120 mm.

[0028] In other words, two tension legs 38 and 40 are located on different sides of a central tension leg 28 having the slot-like opening and are inclined to it at different angles (between 50 and 60, such as 54 degrees, and between 60 and 70, such as 75 degrees).

[0029] Due to the arrangement of the tension legs 38, 28 and 40, the holes 32, 34 and 36 are also located at different angles to the respective support point 22, so that a hole pattern is provided in the anchor plate 20, which can be used extremely flexibly to select suitable additional anchoring points in the window reveal 10. This flexibility is explained below using the Figures 2 and 3 described: It can be seen from these figures that the anchor plate 20 can be used not only in different swivel positions, but also reversed, ie hooked into the securing bolt 16. After hooking into one of the two slots 22-1, 22-2, the anchor plate 20 can be inserted into the assembly gap 30 (see Figure 7 ), which is indicated by the dot-dash lines, until at least one hole or a correspondingly sufficient number of holes 32, 34 and 36 are located at the optimal positions for the installation situation.

[0030] As in the Figure 1 As indicated, the force to be absorbed acts in the direction of the arrow F. It can be seen that the slot-like openings 26-1, 26-2 are oriented to the longitudinal extent of the tension leg 28 in such a way that - starting from the leg edge 48 - they have an extension component in the direction of the external force F to be absorbed. When the external force acts on the securing bolt 16, the latter is thus always pulled into the slot 26-1 or 26-2.

[0031] Tests have shown that when using a steel anchor plate with a thickness of 3.0 mm, the tensile forces required by the DIN 18008-4 standard could be reliably transmitted across all tension legs 28, 40 and 38.

[0032] With reference to the Figures 4 to 6A modified embodiment of the anchor plate 20 or the fuse is described. To simplify the description, those components that correspond to the components of the first embodiment are provided with the same reference numerals, but preceded by a "1".

[0033] The anchor plate 120 here has two tension legs 128 and 138 arranged at an angle of approximately 60° to each other, with a slot-like opening 126 for hooking into the securing bolt 16 located in the connecting area 150 of the two tension legs 128, 138. In this variant, too, several consecutive slot-like openings 126 can be provided for hooking into the securing bolt 16.

[0034] Otherwise, the dimensions and materials can be as in the embodiment according to Figures 1 to 3The anchor plate 120 can again be formed from a steel plate with a thickness in the range between 1.5 and 3.5 mm, preferably 3 mm.

[0035] From the Figures 5 and 6 The flexibility with which the anchor plate 120 can be used is once again evident. It can be used not only in various pivoting positions, but also reversed, ie, hooked into the securing bolt 16.

[0036] Figure 7 shows a slightly modified embodiment of the anchor plate 20 according to Figure 1 To simplify the description, those components that correspond to the components of the first embodiment are again provided with the same reference numerals, but preceded by a "2".

[0037] In contrast to the embodiment according to Figure 1The slot-like openings 226-1 and 226-2 in the tension leg 228 are designed to be slightly less deep, so that they end slightly in front of the center line LM of the tension leg 228, allowing the anchor plate 220 to absorb even greater tensile forces. The anchor plate 220 is again made of 3 mm thick steel.

[0038] In this embodiment, too, two tension legs 238, 240 are located on different sides of a central tension leg 228 having the slot-like opening and are inclined to it at different angles of, for example, 54 and 75 degrees, respectively.

[0039] After extensive tests it has been found that an anchor plate 220 with the dimensions according to Figure 8 offers the best compromise between flexibility in use and installation, and strength. Steel is used as the material here as well. The anchor plate is 3 mm thick.

[0040] Finally, Figure 9 a further modification of the anchor plate 320. To simplify the description, those components that correspond to the components of the first embodiment are again provided with the same reference numerals, but preceded by a "3". The anchor plate 320 corresponds to the embodiment according to Figure 7 and 8 , with the difference that the tension legs 238 and 240 have been omitted. The anchor plate 320 therefore has only a single tension leg 328, in which the two longitudinally staggered slot-like openings 226-1 and 226-2 are formed on one side and an opening 334 for a fastening screw on the other side. However, a pattern of several openings 334 can also be provided.

[0041] Of course, modifications to the described embodiments are possible without departing from the basic concept of the invention. The anchor plate 20, 120, 220, 320 can also be used to anchor a fall protection device directly in the window reveal 10. Variations are also possible with regard to the material for the anchor plate 20, 120, 220, 320. It is crucial that a suitable tensile strength is provided with a flat design, which is possible, for example, with a GRP or CFRP material. The device can also be used as an anti-burglary device.

Claims

1. Method for securing a structural element frame (12), for example for a window (12) equipped with a fall-protection means (14), on a structural body reveal (10), <b>characterized - in that the securing takes place using an anchor plate (20; 120; 220; 320), wherein the anchor plate forms a support point (22-1, 22-2; 122) for a securing bolt (16), which is anchored on one side in the structural element frame (12) and on the other side in the structural body reveal (10), and can be fixed to the structural body reveal (10) by means of at least one fastening screw (24), wherein the support point (22-1, 22-2; 122), from the base of a slot-like opening (26-1, 26-2; 126; 226-1, 226-2; 326-1, 326-2), which preferably receives the securing bolt (16) in a form-fitting manner, is formed in a tension arm (28; 128; 228; 328) of the anchor plate, so that the anchor plate (20; 120; 220; 320) can be hooked onto the securing bolt (16) when the structural element frame has been inserted, and - in that the anchor plate (20; 120; 220; 320) is inserted between the structural element frame (12) and the structural body reveal (10) in such a manner that a securing bolt (16), which is anchored on one side in the structural element frame (12) and on the other side in the structural body reveal (10), comes to rest on the support point (22-1, 22-2; 122), and the anchor plate is fixed in this state to the structural body reveal (10) by means of the at least one fastening screw (24).

2. Method according to Claim 1, characterized in that the anchor plate (20; 120; 220) has, in order to receive the at least one fastening screw (24), a plurality of apertures (32, 34, 36; 132, 134), which are located at different distances (A32, A34, A36) and / or angles to the support point (22-1, 22-2; 122).

3. Method according to Claim 2, characterized in that the staggered distances (A32, A34, A36) of the apertures (32, 34, 36) to the support point (22-1, 22-2; 122) are in the range between 40 and 120 mm.

4. Method according to Claim 2 or 3, characterized in that the apertures (32, 34, 36; 132, 134) are located in different tension arms (38, 28, 40; 128, 138; 228, 238, 240) of the anchor plate (20; 120; 220; 320).

5. Method according to one of Claims 1 to 4, characterized in that the anchor plate (120) has two tension arms (128, 138) positioned at an angle to one another, wherein the slot-like opening (126) for hooking onto the securing bolt (16) is located in the connecting region (150) of the two tension arms (128, 138).

6. Method according to one of Claims 1 to 4, characterized in that the anchor plate (20; 220) has a plurality of tension arms (38, 28, 40; 238, 228, 240) that diverge in a substantially fan-like manner, the respective ends of which contain the apertures (34, 32, 36) for the fastening screws (24).

7. Method according to Claim 6, characterized in that two tension arms (238, 240) are located on different sides of a central tension arm (228) having the slot-like opening and are inclined at different angles (54 degrees, 75 degrees) with respect to said central tension arm.

8. Method according to one of Claims 1 to 7, characterized in that the anchor plate (20; 220; 320) has a plurality of slot-like openings (26-1, 26-2) for hooking onto the securing bolt (16).

9. Method according to Claim 8, characterized in that the slot-like openings are located one behind the other in parallel alignment.

10. Method according to Claim 8 or 9, characterized in that the slot-like opening (26-1, 26-2; 126; 226-1, 226-2; 326-1, 326-2) is oriented with respect to the longitudinal extent of the tension arm (28; 128; 228; 328) in such a manner that it has an extent component in the direction of the external force (F) to be absorbed.

11. Method according to one of Claims 1 to 10, characterized in that the tension arm (28; 128; 228; 328) has a width of 25 to 35 mm.

12. Method according to one of Claims 1 to 11, characterized in that the anchor plate (20; 120; 220; 320) is formed by a steel plate having a thickness in the range between 1.5 and 3.5 mm, preferably 3 mm.

13. Method according to one of Claims 1 to 12, characterized in that the at least one slot-like opening (26-1, 26-2) in the tension arm (28) ends in the region of the centre line (LM) of the tension arm (28).

14. Use of an anchor plate (20; 120; 220; 320), - which has a slot-like opening (26-1, 26-2; 126; 226-1, 226-2; 326-1, 326-2), which is formed in a tension arm of the anchor plate and has a support point (22-1, 22-2; 122) for a securing bolt (16), wherein the support point is formed from the base of the slot-like opening, so that the anchor plate can be hooked onto the securing bolt when a structural element frame has already been inserted into a structural reveal, and - which can be fixed to a structural body reveal (10) by means of at least one fastening screw (24), to secure the structural element frame (12), for example for a window (12) equipped with a fall-protection means (14), on the structural body reveal (10).