EP3312358A1 - Installation frame for a trapezoidal sheet metal roof, assembly of a roof passage, and a method for mounting the installation frame - Google Patents

Abstract

In a mounting frame for a roof opening in a trapezoidal sheet roof, with two longitudinal changes and two cross bars, which create a rectangular frame, the invention proposes that the longitudinal changes are symmetrically aligned and designed as a metal profile and have a substantially Z-shaped cross-sectional profile, with a upper and a lower, lying leg and a middle, upright leg between the lying legs, wherein the longitudinal changes and the crossbars are interconnected by means of connecting angles, which each have a longitudinal change fitting surface and a voltage applied to the cross bar surface, and which each with the Longitudinal change and the crossbar are connected by separate connecting elements. Furthermore, the invention proposes a method for mounting the mounting frame and an arrangement using the mounting frame.

Description

The invention relates to a mounting frame according to the preamble of claim 1. Furthermore, the invention relates to an arrangement consisting of a trapezoidal sheet metal roof and the mounting frame, and finally the invention relates to a method for mounting the mounting frame in a trapezoidal sheet metal roof.

A generic mounting frame is known in practice. A wooden frame is placed over the trapezoidal sheets. Partly Z-shaped metal profiles were used as static longitudinal changes, which are screwed to both the timber frame and the underlying trapezoidal sheet and thus create a thermal or cold bridge. Installation requires access from above and below to the trapezoidal roof.

The invention has for its object to improve a generic mounting frame to the effect that this allows mounting exclusively from above the trapezoidal sheet metal roof. Furthermore, the invention has for its object to provide a corresponding assembly method and a advantageous arrangement of the trapezoidal roof and the mounting frame attached thereto.

This object is achieved by a mounting frame according to claim 1 an arrangement according to claim 8 and a method according to claim 15.

In other words, the invention proposes designing the longitudinal changes and the transverse bars of the mounting frame as metal profiles, the longitudinal changes having a substantially Z-shaped cross-sectional profile. In contrast to the Z-shaped profiles mentioned above, therefore, the two upper and lower, each lying leg extend to different sides of the middle, upright leg. These metallic longitudinal changes are therefore not intended to overlap the trapezoidal sheet and an additional frame or the trapezoidal sheet and a thermal barrier coating. Rather, the height of the upright leg in adaptation to the respective geometry of the trapezoidal sheet is dimensioned so high that the upper leg lying of the longitudinal change can be placed on a rib of the trapezoidal sheet and the lower leg of the longitudinal change rests on a bead of the trapezoidal sheet. The crossbars, which are also configured as metal profiles, are connected by means of connecting angles with the longitudinal changes, this connection being made by means of connecting angles, which can be provided as prefabricated, standardized elements. The connecting angles each have a surface which abuts the longitudinal change and is accordingly designated as a change surface and a surface which abuts the transverse bolt and is therefore designated as a locking surface. The attachment of a connection angle to the longitudinal change or on the crossbar is carried out according to the proposal in each case by separate connecting elements, such as screws or rivets.

The proposed installation frame allows mounting exclusively from the top of the trapezoidal sheet metal roof, so that, for example, the operation can continue unhindered in a hall roofed with such a roof. It is only necessary to select longitudinal changes previously, the height of which is adapted to the rib height of the existing in the roof trapezoidal sheet. On site, the longitudinal changes are then delivered with such a degree that they can be supported in the region of their two ends on trusses of the roof construction, so that a stable support for the mounting frame can be ensured. In adaptation to the respective desired size of the mounting frame, the crossbars are then cut to length at the construction site, so that they fit exactly between the two parallel and spaced apart longitudinal changes. Further processing of the cross bar is not required, they only need to be bolted to the longitudinal changes.

The connection of the longitudinal change and crossbar to a mounting frame takes place on the construction site by attaching the connection angle, for example made of sheet steel existing sheet metal angle, on the one hand abut the upright leg of the longitudinal angle and on the other hand, the crossbar, the crossbar designed, for example, as existing steel U-profile can be.

By means of the proposed mounting frame above the ribs of the trapezoidal sheet a minimal height is effected, namely only the material thickness of the upper leg of the longitudinal change corresponds, so that for example a resting on the trapezoidal sheet thermal barrier layer can pass unhindered over the mounting frame.

Advantageously, the change and locking surfaces of the connecting angle holes have, which serve to receive a connecting element, that is arranged accordingly and are measured. As a result, not only the construction site assembly time is shortened, because such holes do not need to be specifically introduced into the connection angle, but these holes can for example also serve as a template or as guides for a drill, if rivets are to be used as separate fasteners and holes in the longitudinal changes and crossbars are to be introduced.

Particularly advantageous, however, self-tapping self-drilling screws can be used as connecting elements, so that neither the longitudinal changes nor the crossbars need to be pre-drilled. This not only prevents metal chips fall during installation of the mounting frame down, but overall, the assembly time can be shortened because prior to introduction of the connecting element no preparatory work, such as the creation of holes in the longitudinal changes and cross bars is required.

Advantageously, the opening enclosed by the mounting opening can be secured against falling hazards when later the roof is committed. Therefore, a grid may be advantageously arranged in this opening, which has a plurality of lattice struts.

The free spaces between adjacent grid struts can advantageously have a width of at most 15 cm, advantageously a width of about 10 to 12 cm, so that both a fall through the grid is prevented and the possibility is avoided, stuck with one foot in the grid to stay, so that associated accident hazards are excluded.

Advantageously, a particularly stable embodiment of the grid can be ensured by the fact that the majority of the grid struts runs parallel to the shorter side of the mounting frame, if the mounting frame is not square, but designed as an elongated rectangle.

Furthermore, the lattice can be made particularly stable as diarrhea or fall protection by having intersecting lattice struts.

The mentioned grid can be configured, for example, as a separately made frame, the four outer frame elements are configured for example in the form of an L-shaped metal profile, so that this frame having the grid can be inserted from above into the mounting frame. Since the lattice struts thus need not be attached directly to the longitudinal changes or cross bars of the mounting frame, it is again avoided that chips fall from the mounting frame down and can interfere with the operation below the roof section. Rather, the grid frame can be made at a distance from the roof cutout and then hung or inserted into the mounting frame.

The arrangement provided on the roof provides, according to proposal, that the mounting frame is arranged on the trapezoidal sheet of the roof, that the upper legs of the longitudinal changes each rest on a rib of the trapezoidal sheet and rest the lower legs of the longitudinal changes each on a bead of the trapezoidal sheet. The height of the middle leg of a longitudinal change is dimensioned accordingly in adaptation to the trapezoidal sheet, so that the two lying legs lie in such a way on a bead or on a rib of the trapezoidal sheet that they can be connected to the trapezoidal sheet, for example glued or also using self-drilling screws, rivets or similar fasteners. In this case, a direct contact of the longitudinal change with the rib or bead of the trapezoidal sheet may be provided, but it may also be provided, an intermediate layer between a lying leg of the longitudinal change and to arrange the bead and / or the rib of the trapezoidal sheet. For example, it may be a sound-insulating or heat-insulating intermediate layer made of an elastomeric material or a plastic, or a compensating strip of metal, plastic or the like for possible height adjustment of the longitudinal change to the geometry of the respective trapezoidal sheet.

The roof opening is created for various reasons, for example, to allow a passage for a fireplace, or to install a flue gas vent for fire protection reasons, or to install a dome light. During such installation work, the opening enclosed by the mounting frame can advantageously be secured by means of a bolt or a grille, so that persons are protected against falling, since they can not fall through the opening. Particularly advantageous, the opening by means of a correspondingly stable tarp or a plate, for. B. a wood-based panel, so that on the one hand also the desired fall protection for the staff is created, on the other hand, however, in addition the falling through of small parts, tools u. Like. Is safely excluded and thus optimal safety is guaranteed for people who are below this roof opening. By means of the above-mentioned plate or a sufficiently close-meshed grid, for example, unimpeded use of the space below the roof cut-out is still possible during the aforementioned installation work.

If the trapezoidal sheet metal roof is configured as a warm roof and a heat insulation layer extends above the trapezoidal sheet, it may be provided, as already indicated above, that this thermal insulation layer extends beyond the installation frame and the installation frame is thus located in the warm area of the roof construction. Adverse heat or cold bridges can be avoided in this way.

In particular, if a Aufsatzkrranz connects to the mounting frame upwards, for example, to carry a flue gas outlet flap or a dome light above the thermal barrier, may advantageously extend outside around this curb around a thermal insulation in such a way that this thermal insulation also on the on the Trapezoidal sheet located thermal barrier layer connects, so that overall ensures optimum thermal insulation and cold bridges can be avoided.

• Zunächst werden die Längswechsel am Rand der zu schaffenden Dachdurchbrechung auf das Trapezblechdach aufgelegt, so dass die Längswechsel jeweils auf zwei Trägern der vorhandenen Dach-Unterkonstruktion abgestützt sind. Dabei werden die unteren Schenkel der Längswechsel in die Sicken des Trapezblechs gelegt und die oberen Schenkel der Längswechsel auf die jeweils benachbarte Rippe des Trapezblechs.

The installation made possible by the proposed installation frame offers, as mentioned, the advantage of requiring access to the roof structure exclusively from the top of the trapezoidal sheet metal roof. The procedure for mounting the mounting frame can therefore proceed as follows:

• First, the longitudinal changes are placed on the edge of the roof opening to be created on the trapezoidal sheet metal roof, so that the longitudinal changes are supported in each case on two carriers of the existing roof substructure. The lower legs of the longitudinal changes are placed in the beads of the trapezoidal sheet and the upper leg of the longitudinal changes to the respective adjacent rib of the trapezoidal sheet.

The two longitudinal changes are bolted from support point to support point with the existing roof substructure, and then the lower beads of the trapezoidal sheets are bolted to the two longitudinal changes. Instead of a screw the two longitudinal changes can be attached to the trapezoidal sheet either by gluing or riveting.

In these two beads first cuts are introduced along the longitudinal change, so that the trapezoidal sheet roof skin cuts through these cuts and the size of the roof opening - For example, adapted to the size of a dome to be mounted - is determined. The beads each have a certain width, and the cuts are introduced into the beads in such a way that from each bead a strip of material remains outside the first two cuts.

To handle the roof opening to be created, a holding grid or holding bar is screwed onto the trapezoidal sheet metal. Subsequently, the two mentioned first sections are connected to each other by two transverse second cuts, so that in this way a rectangular cutout is created in the trapezoidal sheet, which is referred to as a roof opening.

Adapted to the now fixed, actual distance between the two longitudinal changes, the crossbars are cut to size on site and connected using the connection angle with the longitudinal changes, so that in this way the mounting frame is created.

All mentioned working sections are listed from the top of the trapezoidal sheet roof ago. Should continue to be used under the roof of the local space during work, so a tarpaulin, a dense mesh o. The like. Below the roof to be installed where the roof opening is to be created. When making the rectangular cutout in the trapezoidal sheet a rectangular, cut-out roof part is produced. Also this cut-out roof part can advantageously be removed at the top, for which purpose, for example, the aforementioned holding grid or the mentioned holding bar can be used, so that the space located below the roof can continue to be used during this time.

The method described above ensures to a very high degree that the installation frame is perfectly adapted to the respective geometric dimensions of the trapezoidal sheet.

Deviating from the described procedure, however, it may also be provided to first produce the mounting frame by connecting the longitudinal changes and the crossbars using the connection angle, and then inserting this prefabricated mounting frame into the previously provided roof opening and securing it to the trapezoidal sheet.

Since the dimensions of the mounting frame must be based on the geometry of the trapezoidal sheet, namely after the distance of the individual beads to each other, can advantageously be provided following the mounting of the mounting frame, the mounting of the already mentioned Aufsetzrahmens, which acts as a kind of adapter and below connects to the mounting frame, while above, for example, the flue gas outlet flap or the dome lights absorbs whose length and / or width dimensions may differ from those of the mounting frame.

Fig. 1

eine Draufsicht auf einen vereinfacht dargestellten Einbaurahmen,

Fig. 2

eine Draufsicht auf ein Sicherheitsgitter,

Fig. 3

das Sicherheitsgitter von Fig. 2 in dem Einbaurahmen von Fig. 1,

Fig. 4

einen Längsschnitt durch eine Lichtkuppel einschließlich des benachbarten Dachbereiches,

Fig. 5

eine Ansicht ähnlich Fig. 4 jedoch mit eingesetztem Sicherungsgitter,

Fig. 6

einen Querschnitt durch die Lichtkuppel von Fig. 5

Fig. 7

einen Querschnitt durch einen Längswechsel

Fig. 8

einen Querschnitt durch einen Querriegel,

Fig. 9-11

unterschiedliche Ansichten auf einen Verbindungswinkel,

Fig. 12

eine Ansicht auf einen Eckbereich eines Einbaurahmens mit Blick auf einen Längswechsel, und

Fig. 13

eine Ansicht auf einen Eckbereich eines Einbaurahmens mit Blick auf einen Querriegel.

The invention will be explained in more detail below with reference to the purely schematic illustrations. It shows

Fig. 1

a plan view of a simplified illustrated mounting frame,

Fig. 2

a top view of a security grid,

Fig. 3

the security grid of Fig. 2 in the mounting frame of Fig. 1 .

Fig. 4

a longitudinal section through a dome light including the adjacent roof area,

Fig. 5

a view similar Fig. 4 but with inserted safety grid,

Fig. 6

a cross section through the dome of Fig. 5

Fig. 7

a cross section through a longitudinal change

Fig. 8

a cross section through a cross bar,

Fig. 9-11

different views on a connection angle,

Fig. 12

a view of a corner region of a mounting frame with a view to a longitudinal change, and

Fig. 13

a view of a corner of a mounting frame overlooking a cross bar.

In Fig. 1 is generally designated 1 mounting frame, of which only the larger elements are shown, namely two longitudinal changes 2 and two cross bar 3. The two longitudinal changes 2 are each with their ends on a binder 4 of the support structure of a trapezoidal sheet metal roof, and the connection between the Cross bars 3 and the longitudinal changes 2 is for clarity in Fig. 1 not shown, it will be later based on the Fig. 9 to 13 explained in more detail.

The longitudinal changes 2 have a substantially Z-shaped cross-sectional profile, namely lower leg 5, which are aligned facing each other and each have an upper leg 6, which are facing away from each other in the mounting frame 1 and wherein the lower and upper leg lying fifth and 6 are interconnected by a middle, upright leg 7. The cross bar 3 are also designed as metallic profiles; they have a U-resp. C-shaped cross-sectional profile on.

In Fig. 2 a grid 8 is shown, which has an outer, circumferential grid frame 9 and a plurality of grid struts 10 which extend parallel to the shorter side of the grid 8, and which are configured in the illustrated embodiment as steel tubes. A central lattice strut 11 runs parallel to the longitudinal side of the lattice 8 and is designed as a rectangular hollow profile made of steel. It supports the shorter lattice struts 11, which are arranged at a distance of 12 cm to each other.

Fig. 3 shows the mounting frame 1. The dimensions of the mounting frame 1, in particular the length of the longitudinal change 2 directed according to the supporting structure of the roof to ensure that the binder 4 can be used as a support for the mounting frame 1. The actually to be created roof opening, however, depends, for example, on the dimensions, which has a light dome available on the market, so that accordingly adapted to the dimensions of the dome light, a roof opening in the roof is created, which is dimensioned correspondingly smaller than the entire mounting frame 1. At this roof opening the grid 8 is adjusted. It serves as burglary protection in two respects: on the one hand in the sense of accident prevention and on the other hand with regard to the prevention of unauthorized access to the building. The grid frame 9 rests on the upper legs 6 and on the cross bar 3 of the mounting frame 1.

Fig. 4 shows the mounting frame 1 as part of an arrangement which has a Aufsatzkranz 12 above the mounting frame 1, which carries a dome light 14. In this case, both the mounting frame 1 and the top ring 12 are provided to the outside with a thermal barrier coating 15 and a thermal insulation 16.

Furthermore, it is off Fig. 4 It can be seen that the longitudinal changes 2 are connected to the crossbars 3 via connecting angles 17. These have a change of surface 18 adjacent to the longitudinal change 2 as well as a locking surface 19 oriented at right angles thereto, which rests against the transverse bar 3. The connection angle 17 are determined by means of separate connecting elements, which are designed as self-tapping screws 20, at the longitudinal changes 2 and 3 crossbars.

Fig. 5 shows the situation of Fig. 4 , but with the grid 8, which is inserted into the mounting frame 1. It can be seen that the lattice frame 9 consists of metallic profiles, which have an approximately C-shaped cross-section, wherein, however, the two parallel legs of the C-shaped Profiles are designed very different lengths, so that as a result, the metallic profiles have an almost L-shaped cross-section.

Fig. 6 shows a cross section through the situation of Fig. 5 , It can be seen that the lower leg 5 of the longitudinal changes 2 rest by means of self-drilling screws 20 on a bead 21 of a trapezoidal sheet 22, while the upper leg 6 of the longitudinal changes 2 each rest on a rib 23 and there are also fixed with self-drilling screws 20.

Fig. 7 shows a cross section through a longitudinal change 2. The substantially Z-shaped cross-sectional geometry of this steel profile, with the lower leg 5 lying, the upper leg 6 lying and connecting these two middle upright leg 7 is made Fig. 7 The concrete dimensions of the longitudinal change 2, in particular the height of the central portion 7 and the width of the upper and the lower leg 5 and 6 respectively depend on that for the roof construction used trapezoidal sheet.

Fig. 8 shows a cross section through a cross bar 3 with its substantially U- or C-shaped cross-sectional profile and with self-tapping screws 20, for example, serve to set the grid frame 9 of a grid 8 on the mounting frame 1.

Fig. 9 shows a connection angle 17 with its alternating surface 18 and the angled thereto aligned locking surface 19. The alternating surface 18 is provided with four holes 25 which serve to receive self-tapping screws 20, and similar holes 25 are also provided in the locking surface 19, wherein Fig. 9 the drilling screws 20 therein are shown.

For better pressure distribution, the connection angle 17 in addition to the change surface 18 and the locking surface 19 on a pedestal 24 which is designed as a solid steel square bar and with both the change surface 18 and the locking surface 19 is welded.

Fig. 10 shows the view of the locking surface 19 of the connecting angle 17, wherein in this view, the self-drilling screws 20 are shown, which extend through the holes 25 of the exchange surface 18, while the holes 25 are shown screwless in the locking surface 19.

Fig. 11 shows a plan view of the connection angle 17, in which case all holes 25 are shown equipped with self-drilling screws 20.

The FIGS. 12 and 13 show the connection angle 17 in its installation situation within the corner of a mounting frame. 1

Reference numerals:

1

mounting frame

2

End removal

3

crossbars

4

binder

5

Lower, lying thigh

6

Upper, lying thigh

7

Middle, upright thigh

8th

grid

9

lattice frame

10

grid pursuit

11

Medium lattice strut

12

Curbs

14

dome light

15

thermal barrier

16

thermal insulation

17

connecting brackets

18

exchange area

19

locking face

20

Bohrschraube

21

Beading

22

trapezoidal sheet

23

rib

24

base

25

drilling

Claims (20)

Mounting frame (1) for a roof opening in a trapezoidal sheet metal roof,
with two longitudinal changes (2) which are arranged parallel to one another and at a distance from each other,
and with two transverse bars (3), which are likewise arranged parallel to one another and at a distance from one another, and connect the two longitudinal changes (2), creating a rectangular frame,
characterized,
that the longitudinal changes (2) are aligned symmetrically to each other
and are each designed as a metal profile and have a substantially Z-shaped cross-sectional profile, • with an upper, lying leg (6), A lower, lying leg (5), • and having a middle, upright leg (7) which runs upright between the lying legs (5, 6), wherein the longitudinal changes (2) and the transverse bars (3), which are likewise designed as metal profiles, are connected to one another by means of connecting angles (17),
wherein the connecting angles (17) each have a change surface (18) which bears against the longitudinal change (2) and also a locking surface (19) which bears against the transverse bolt (3),
and wherein the connecting angles (17) are each connected to the longitudinal change (2) and the transverse bar (3) by separate connecting elements. Mounting frame according to claim 1,
characterized,
that the exchange surface (18) and the locking surface (19) of a connecting angle (17) bores (23), which are each arranged and sized to receive a connecting element. Mounting frame according to claim 1 or 2,
marked by
self-tapping self-drilling screws (20) as connecting elements. Mounting frame according to one of the preceding claims,
characterized,
in that a grid (8) having a plurality of lattice struts (10, 11) is arranged in the opening enclosed by the mounting frame (1). Mounting frame according to claim 4,
characterized,
that free spaces between adjacent grid struts (10) have a width of at most 15 cm. Mounting frame according to claim 4 or 5,
characterized,
in that the installation frame (1) has two sides of different lengths and the majority of the lattice struts (10) extend parallel to the shorter side. Mounting frame according to one of claims 4 to 6,
characterized,
in that the grid (8) has intersecting grid struts (10, 11). Arrangement of a roof opening in a trapezoidal sheet roof,
with a trapezoidal sheet (22),
which has ribs (23) and beads (21),
and which is supported on a support structure, the transversely to the ribs (23) and beads (21) extending binder (4),
and which has a roof opening in the form of a rectangular cutout,
and with a mounting frame (1), which is designed according to one of the preceding claims,
the longitudinal changes (2) being supported on the binders (4),
the upper, lying legs (6) of the longitudinal changes (2) in each case rest on a rib (23) of the trapezoidal sheet (22),
the middle, upright legs (7) of the longitudinal changes (2) extend downwards over the height of the rib (23), and the lower, lying legs (5) of the longitudinal changes (2) in each case on a bead (21) of the trapezoidal sheet ( 22) rest. Arrangement according to claim 8,
characterized,
in that the opening enclosed by the mounting frame (1) is covered by a plate which is detachably held on the mounting frame (1). Arrangement according to claim 8 or 9,
characterized,
that of the mounting frame (1) bounded opening from a light dome (14) is covered. Arrangement according to claim 8 or 9,
characterized,
that of the mounting frame (1) bounded opening is covered by a flue gas discharge valve. Arrangement according to claim 8 or 9,
characterized,
that by the of the mounting frame (1) enclosed Opening a fireplace extends. Arrangement according to one of claims 8 to 12,
characterized,
that above the trapezoidal sheet (22) a thermal barrier coating (15) is arranged, which extends beyond the mounting frame (1). Arrangement according to one of claims 8 to 12,
characterized,
that above the trapezoidal sheet (22) a thermal barrier coating (15) is arranged,
and that of the mounting frame (1) a curb (12) extends upward
and outside of the curb (12) has a thermal insulation (16), which connects to the thermal barrier coating (15). Method for mounting a mounting frame (1), which is designed according to one of claims 1 to 7, in a roof opening of a ribbed (23) and corrugations (21) having trapezoidal sheet metal roof, with the following steps: a) in two spaced-apart beads (21) of the trapezoidal sheet (22) extending in the longitudinal direction of first cuts are introduced in such a way that at least one strip of the respective bead (21) remains outside the first two sections, b) the two first cuts are connected together by two transverse second cuts, so that a rectangular roof opening is created, c) the lower legs (5) of the two longitudinal changes (2) are placed on the remaining strips of the beads (21) and the upper legs (6) of the two longitudinal changes (2) on the respective adjacent ribs (23) d) the two longitudinal changes (2) are attached to the surfaces of the trapezoidal sheet (22), which they rest e) the cross bars (3) are connected by means of the connecting angle (17) with the longitudinal changes (2), so that the mounting frame (1) is created, wherein said operations are all performed from the top of the trapezoidal sheet (22). Method according to claim 15,
characterized,
that after the introduction of the cuts in the trapezoidal sheet (22) of the cut rectangular roof part is removed and also this step is performed from the top of the trapezoidal sheet (22) ago. Method according to claim 15 or 16,
characterized,
that the step e) is carried out first and then the mounting frame (1) by means of the working steps c) and d) on the trapezoidal sheet (22) is attached. Method according to one of claims 15 to 17,
characterized,
that after the creation of the mounting frame (1) in the of the mounting frame (1) enclosed opening a fall arrest is arranged. Method according to one of claims 15 to 18,
characterized,
that after the creation of the mounting frame (1), the opening enclosed by the mounting frame (1) is covered by means of a fail-safe. Method according to claim 19,
characterized,
that the opening is covered by a fail-safe is designed as a tarpaulin, plate, grid or latch by this fail-safe with the mounting frame (1) is screwed.

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