DE102020103399B4 - Inclinable roof duct - Google Patents

Abstract

Tilt-adjustable roof duct (1) for leading a pipeline (10, 19, 22, 23, 24, 25, 34) through a roof construction so that it is windproof and rainproof, with a roof-side fixing plate (2) which can be fastened to the roof construction and has a recess ( 4) for the passage of the pipeline (10, 19, 22, 23, 24, 25, 34), with a passage pipe (10) which is fixed to the roof in the installed state and with a section (19, 22) of the pipeline which is arranged above the roof and is adjustable in inclination displaceable relative to the fixing plate (2) and can be fixed in its aligned position in an adjustable tilt manner by fastening means (13, 14, 16, 17, 18) and can be connected to the lead-through tube (10) and is connected in the installed state, characterized in that for connection to the section (19, 22) of the pipeline, which is arranged above the roof and can be adjusted in inclination, in the lead-through pipe (10) there are at least two opposing bending shackles (13, 14) which are plastically bendable, and of which at least one bending shackle (14) extends in its longitudinal direction is designed to be displaceable and lockable in relation to the other bending strap (13).

Description

The invention relates to a pitch-adjustable roof duct according to the preamble of patent claim 1.

With the subject of DE 90 04 653 U1 an outlet pipe ventilation device has become known in which the outlet pipe sitting above the roof surface is designed to be adjustable in inclination in relation to the plane of the roof surface.

The inclination is adjusted in that the vent pipe sitting above the roof surface has an extension at its foot end which is spherically curved and is seated on a cylindrical pipe which is fixed to the roof.

This results in a swivel bearing between the upper blow-out pipe and the lower, roof-mounted attachment pipe, which allows the inclination to be adjusted. The disadvantage of this known inclination adjustment is, however, that only small inclination angles can be achieved because only maximum inclination angles in the range of 15° are possible due to the spherical bulge at the foot end of the pipe sitting above the roof surface.

The two pipe parts touching each other accordingly form an inclined plane, one pipe being designed to be pivotable about a pivot axis to the other, roof-fixed, lower pipe.

The DE 295 12 647 U1 shows another inclination adjustment device for roof outlets, in which the upper, roof-distant tube is sealed with a spherical cap, the lower open end of which covers an oppositely directed upper spherical cap, so that the upper roof-distant tube with its sealed spherical cap is free on the lower, roof-mounted spherical cap can be pivoted and can be fixed in certain selected pivot positions.

Disadvantage of the known tilt adjustment is, however, that only a limited tilt adjustment is possible and that two interlocking spherical caps, the surfaces of which must be pivotable and slidable relative to one another, are associated with high manufacturing and assembly costs and high maintenance costs.

The angle of inclination to the roof surface is severely restricted because the interlocking spherical caps only have a limited inclination up to a maximum angle of inclination of approx. 30° to 40°.

In the case of steeper roofs, it is possible with this type of inclination setting to rotate the spherical caps by 180° in relation to one another, in order to enable adaptation to pitched roofs and to different pitches of pitched roofs. However, it remains the case that there is only a very limited inclination adjustment with relatively complicated assembly means.

Also the AT 502 483 B1 is limited to the seating of two spherical caps whose curvature is matched to one another, with the inclination being determined using a locking screw which engages through a curved elongated hole in one of the spherical caps.

In the going back to the same applicant DE 20 2013 003 254 U1 , from which the features of the preamble of the patent claim are known, describes an adjustment shoe provided with slats, which is fixed at one end to the roof surface and at its other end via flexible slats, which can be displaced relative to one another, at the opposite end of the roof surface is fixed. This results in a flexible adjustment shoe that can be adjusted in inclination and through the interior of which the pipe bushing is guided.

Also the DE 10 2011 000 944 A1 discloses two spherical caps seated on top of one another, which in turn have the disadvantage that there are only small angles of inclination.

The EP 2 956 598 B1 discloses a seal for a pipe penetration, the seal having a collar with a stiffener, and the stiffener having fastening tabs for fastening it to the collar.

U.S. 3,075,451A discloses a tilt-adjustable pipe leadthrough with a roof-fixed, conical lower part and a cylindrical upper part, which can be connected to the lower part by means of flexible straps.

The invention is based on the object of further developing an inclination-adjustable roof duct of the type mentioned at the outset in such a way that a simple and reliable inclination adjustment is possible with a significantly smaller number of parts, which has significantly larger adjustment ranges.

The invention is characterized by the technical teaching of claim 1 in order to solve the task at hand.

An advantageous feature of the present invention is that in a roof-mounted lead-through pipe, which is connected to the tilt-adjustable section of the pipeline arranged above the roof, at least two opposing bending straps are arranged, which are plastically bendable and of which at least one bending strap is displaceable in its longitudinal extent and is designed to be lockable in relation to the other bending strap.

At least one flexible shackle is designed to be displaceable and lockable in relation to the other fixed flexible shackle, with the tilt-adjustable roof duct formed thereby being sealed and covered by a flexible tube.

With the technical teaching given, there is the advantage over the prior art that a very simple, tilt-adjustable roof duct is now proposed, in which at least two opposite sheet metal lugs are arranged in a roof-mounted duct, of which at least one plastically bendable bending lug in the direction of its Longitudinal extension is slidably and lockably fixed in the roof-mounted bushing tube. The bending lugs form a frictional connection with the attached flexible tube and determine the bending direction of the flexible tube.

In a development of the invention, it can be provided that the opposite flexible shackle, which is firmly attached to the roof-mounted lead-through tube, is also designed to be displaceable and lockable in the direction of its longitudinal extent.

However, the invention only describes the embodiment in the following description, in which at least one of two opposing bending straps is connected in the direction of its longitudinal extension in the manner of a longitudinal guide so that it can be displaced and locked in the lead-through tube fixed to the roof. In a preferred embodiment, this longitudinal guide is designed as a longitudinal slot, to which a clamp attachment is assigned, which preferably consists of two detachable and lockable clamping screws arranged at a mutual distance from one another.

Instead of the longitudinal guide with an elongated hole and a clamping screw that crosses the elongated hole and rests against a clamping plate that rests on the back of the bending strap, it is possible in another embodiment to design the longitudinal guide as a toothed elongated hole and in the teeth of the elongated hole a spring-loaded engagement element to engage, which then engages according to the shift in different tooth locations of the slot guide and can be fixed there.

It is a particularly simple design principle based on the knowledge that if the upper ends of the spaced-apart flexible tabs are connected to parts of the blow-out head, e.g two upper spaced opposite bending shackles is present, the lower attachment point of a bending shackle is firmly attached to the roof-mounted lead-through tube, while the opposite end of the bending shackle arranged there is designed to be displaceable and lockable.

If, in this constellation, the displaceable bending shackle is now released in its clamping attachment and shifted in the direction of its longitudinal extent, then the entire arrangement bends by exactly the distance by which the displaceable bending shackle was displaced in relation to the fixed bending shackle, whereby - if a plastic bending is present - the mutual deflection of the flexure tabs is maintained in relation to the fixed hood receiving tube or other parts of the blowout head.

It is therefore a particularly simple inclination adjustment that takes place automatically, so to speak, without the need for a bending tool, because the required inclination adjustment is achieved simply by shifting one bending strap in relation to the other, fixed bending strap.

It goes without saying that instead of two opposing bending straps, more than two opposing bending straps can also be used, e.g. two fixed bending straps arranged at a mutual circumferential distance from one another, opposite which the bending strap that can be displaced and fixed in its longitudinal direction is opposite.

Generally speaking, it is a clampable sliding guide that results in an inclination setting when the one movable and lockable bending strap is moved.

Of course, in another embodiment it is also possible to provide more than one movable flexible clip with a corresponding elongated hole guide instead of the one movable flexible clip. Although this leads to increased effort during assembly, it results in superior strength when arranging the entire blow-out device.

The invention is therefore not limited to the juxtaposition of two opposing bending straps.

It is of particular advantage that the roof guide tube that is fixed to the roof has a press-in bead onto which the aforementioned flexible tube is pressed. This press-in bead also serves at the same time to press the roof lead-through pipe into a recess of a fixing plate fixed to the roof. This achieves the advantage that the entire adjustment device for the at least one movable and lockable bending strap lies below the roof level, i.e. it is not visible from the outside. It can be operated from inside the roof surface and does not result in a raised structure above the roof surface that is exposed to the weather.

Accordingly, a seal is achieved between the roof lead-through pipe and the fixing plate fixed to the roof in the area of this circumferential press-in bead, with a lower foot-side press-in surface of the flexible tube also being pressed into this press-in bead.

A further advantage is that a flexible socket exposed to the weather can also be placed on the roof-mounted fixing plate and this flexible socket also has a recess that is aligned with the recess in the fixing plate below, so that the press-in bead running all the way around in the area of the pipe jacket of the Lead-through tube also connects the flexible socket and the underlying fixing plate to one another and seals the two alignments and recesses against one another. The invention is not limited to the arrangement of a flexible pan forming the water-conducting surface. In a development, it can be provided that the flexible pantile is at least partially or completely covered by suitable pantiles, with the roof guide tube then protruding with its upper end beyond the press-in bead from an opening in the pantile layer.

The subject matter of the present invention results not only from the subject matter of the individual patent claims, but also from the combination of the individual patent claims with one another.

Insofar as individual items are designated as "essential to the invention" or "important", this does not mean that these items must necessarily form the subject of an independent claim. This is determined solely by the applicable version of the independent patent claim.

In the following, the invention is explained in more detail with reference to drawings showing only one embodiment. Further features and advantages of the invention that are essential to the invention emerge from the drawings and their description.

• 1: Perspektivische Ansicht einer Dachdurchführung in explosionsartig auseinander gezogenen Darstellung.
• 2: Eine Detaildarstellung einer Klemmbefestigung gemäß dem Kreis in 1.
• 3: Schnitt durch die Dachdurchführung im zusammengebauten Zustand.
• 4: Schnitt durch die Klemmbefestigung Dachfigur 2.
• 5: Eine perspektivische Ansicht der Dachdurchführung in zusammengebautem Zustand in einer Ansicht gemäß der Pfeilrichtung X in 8.
• 7: Eine schematisierte Darstellung des Zusammenbaus der Teile der Dachdurchführung.
• 8: Das Funktionsprinzip der Neigungseinstellung Dachdurchführung im zusammengebauten Zustand.
• 9: Eine vergrößerte Darstellung der beiden einander gegenüber liegenden Klemmeinrichtungen.
• 10: Vertikalschnitt durch die zusammengebaute Dachdurchführung in Richtung des Pfeiles X in 8.
• 11: Eine vertikale Schnittdarstellung der zusammengebauten Dachdurchführung in Richtung des Pfeiles XI in 8.
• 12: Eine schematisierte abgewandelte Darstellung mit drei einander gegenüber liegenden Biegelaschen.
• 13: Schematisiert das Verstellprinzip der Neigungseinstellung im Grundzustand.
• 14: Die Endsituation der Neigungseinstellung, wenn aus 13 ausgehend die Neigungseinstellung vorgenommen wird.

Show it:

• 1 : Perspective view of a roof duct exploded.
• 2 : A detailed representation of a clamp attachment according to the circle in 1 .
• 3 : Section through the roof duct when assembled.
• 4 : Section through the clamp attachment roof figure 2.
• 5 : A perspective view of the roof duct in the assembled state in a view according to the direction of the arrow X in 8th .
• 7 : A schematic representation of the assembly of the parts of the roof duct.
• 8th : The principle of operation of the pitch adjustment roof bushing in the assembled state.
• 9 : An enlarged representation of the two opposite clamping devices.
• 10 : Vertical section through the assembled roof duct in the direction of the arrow X in 8th .
• 11 : A vertical sectional view of the assembled roof duct in the direction of arrow XI in 8th .
• 12 : A schematized, modified representation with three opposing bending straps.
• 13 : Schematic of the adjustment principle of the inclination setting in the basic state.
• 14 : The final situation of tilt adjustment when off 13 starting from which the incline adjustment is made.

In 1 the roof duct 1 according to the invention is shown in an exploded view, with a first roof-mounted fixing plate 2 with associated rows of holes 3 being attached directly to the roof structure. A recess 4 is provided in the area of the fixing plate 2 . Alignment with this recess 4 is another recess 6 in a darü Formed over lying flexible pan 5, wherein this flexible pan can preferably consist of a weatherproof, water-repellent flexible material, such as a plastic material, which allows a plastic bending of the flexible pan 5 to any roof conditions.

Thus, this flexible pan 5 can be adapted to any roof shape and the water-carrying surface 7 is suitable for discharging the rainwater that hits it with a suitable draining agent from the roof structure.

In a further development of the invention, it can additionally be provided that the flexible pan 5, which is sufficient per se, is at least partially or also completely covered on its surface by additional roof pantiles 8, in which case in the drawing 1 these tiles 8 are shown only partially and in reality they can cover the entire surface or only parts of the surface of the flexible tile 5.

In this case - if roofing tiles 8 are present - then the roofing tile level 21 rests on the water-bearing surface 7 of the flexible tile 5 . The weather side 9 is then formed by the top of the additional roof tiles 8.

According to the invention, a preferably cylindrical feed-through tube 10 made of a plastic or metal material is provided, which penetrates the roof structure and has a circumferential press-in bead 11 at its upper end, which serves to seal in the area of the two aligned recesses 4, 6 and into which a lower circumferential press-in surface 20 of a flexible pipe 19 engages, so that the feed-through pipe 10 together with the flexible pipe 19 and the two plates 2, 5 is pressed watertight with a suitable pressure tool.

It is advantageous if the in 2 shown clamp 16 for the clamp of the longer bending strap 14 below the roof surface, ie below the fixing plate 2, comes to rest, because then the entire inclination adjustment of the part of the clamp 16 can be made below the roof level. Accordingly, the clamping screws 18 assigned to the clamping attachment 16 are also below the fixing plate 2.

The lead-through tube 10 is preferably designed as a cylindrical tube and consists of a plastic or metal material. It can also have any other shape, such as an elliptical, triangular or polygonal shape, provided that this shape can be pressed into the associated recesses 4, 6 with a suitable pressure tool with at least one or more press-in beads 11 in a sealing manner.

The element leading out over the roof surface is now passed through the inner side 12 of the lead-through tube 10 . In the exemplary embodiment shown, the roof duct serves to attach a blow-out head 23, the blow-out head being connected to the upper end of the flexible pipe 19 and a hood receiving pipe 22 arranged thereon in a manner to be described in more detail below.

In the 1 It is also shown that one bending lug 14 has a slot 15 in the direction of its longitudinal extent, which can be fixed by the clamp attachment 16 using two clamping screws 18, while a fixed bending lug 13 is preferably arranged opposite, which is also plastically bendable.

Both bending straps 13, 14 have associated pressure joining points 30 at their upper ends, with which they are firmly connected to the inside, for example of a hood receiving tube 22, which in 6 is shown. Instead of the arrangement of such pressure joining points 30, other fastening measures can also be used, such as adhesive fastening, screw fastening or welding fastening.

The invention is not limited to the displacement guidance of a plastically bendable bending strap 14; In another embodiment, not shown in detail, it can be provided that the other, inherently fixed and non-displaceable bending strap 13 is also designed to be displaceable in the direction of its longitudinal extension.

However, for the sake of simplicity of description, only the clamping attachment of the one plastically bendable bending strap 14 will be described below. Instead of arranging a blow-out head 23, as shown in 3 is shown, any other elements could also be guided through the feed-through tube, such as electrical lines, which are provided in particular for solar systems, water-carrying lines and the like.

Here shows the 2 a detailed representation of such a possible clamp attachment, with two spaced-apart clamping screws 18 passing through the slot 15 of the flexible strap 14 and on the back of the flexible strap a clamping plate 17 is arranged, from which the clamping bolts emanate. Through the festival hung of the clamping nuts is thus an adjustable attachment of the displacement of the flexible plate 14 in the area of the bushing tube 10 is achieved.

3 shows the possible tilt adjustments, where the same parts are given the same reference numbers. It can be seen that the pipe angle 29 that predetermines the inclination can be set at a very wide angle of inclination 28 in relation to a vertical 27 .

In preferred configurations, this angle of inclination can even result in the angular position 0, i.e. parallel to the plane of the fixing plate 2, or also result in an angle of 90°, as a result of which the pipe angle 29 is then aligned with the vertical 27.

In 3 further details of a blow-out head 23 are shown, where it can be seen that the above-mentioned hood receiving pipe 22 is surrounded from its outside by a hood pipe 24 in a sealed manner and the hood pipe 24 is inserted into the hood head 25, which is in its upper side in a manner known per se by a Rain cover 26 is covered.

In this way, a blow-off air flow is guided into the blow-off head 23 and is protected against intrusion of rain and can be freely blown out into the atmosphere.

for the inside 4 shown clamp 16 apply the same reference numerals as with reference to FIG 2 was described. It can also be seen here that the press-in surface 20 of the flexible tube 19 extends into the press-in bead 11 and the two plates 2 , 5 are pressed together with the lead-through tube 10 .

5 shows a perspective view of the assembled arrangement, while the 6 and 7 show different details.

The 6 shows that the elongated hole 15 advantageously extends over the entire length of the flexible shackle 14 and that the length of the flexible shackle 14 is selected to be significantly greater than the length of the opposite, preferably fixed but plastically flexible flexible shackle 13 . Furthermore, the 6 that the bending strap 14 associated clamp 16 is below the fixing plate 2 and can therefore be easily operated from the underside of the roof level.

This representation results from 7 .

The 8th shows that when the right-hand clamping attachment 16a, which is assigned to the bending strap 14, is released, with the left-hand clamping attachment 16b remaining unresolved, it is now possible to shift the bending strap in the direction of arrow 33, which automatically results in the change in length between the shorter bending strap 13 and the longer bending strap 14 changed, so that the tube angle 29 is continuously adjustable in the directions of the arrows 31, 32.

After the required roof pitch has been set, the clamp attachment 16a is thus re-established, as a result of which the pipe angle 29 remains fixed.

The two opposite clamp mounts are also in 9 shown.

The 10 and 11 each show a longitudinal section through the assembled arrangement of the roof duct, wherein the 11 the view in the direction of the arrow X in 8th shows while the 10 the sectional view in the direction of the arrow XI in 8th represents. The same reference numbers have been used for the same parts.

The 12 shows a modification of the design of two opposing flexible straps 13, 14, where it can be seen that the length-adjustable flexible strap 14 can now also be assigned two fixed flexible straps 13a, 13b.

In a non-drawing illustration, it can also be provided that there can be two adjustable flexible straps 14a, 14b arranged parallel to one another and lying next to one another, which either have a single flexible strap 13 opposite them or two fixed flexible straps 13a, 13b.

The 13 and 14 now show the adjustment principle according to the invention, where in 13 shows that, starting from a vertical mounting position, the left-hand bending lug 13 and is slidably fixed in the clamp attachment, which is symbolized by a grounding symbol.

The 13 also shows that when loosening the clamp attachment for the flexible shackle 14 (not shown in more detail) a shift in the direction of the arrow 33 is now possible and with this shift the flexible tube, which is firmly connected to the upper end of the two flexible shackles, automatically bends (see the pressure joining points 30) , so that the flex tube bends in the bending direction 36.

This bending state is in 14 shown, starting from the default setting 13 Now the required bending has been achieved by the plastically bendable bending strap 14' now being fixed in its final displacement position is set and at the same time the fixed bending lug 13 'was also plastically bent, so as to allow a fixed inclination setting in the bending direction 36. The flexible tube 19' is now also bent.

The 10 and 11 also show that the upper edge of the lead-through tube 10 is denoted as the tube edge 35, while the upper edge of the hood receiving tube 22 is denoted by the reference numeral 34 as the tube edge. In the formation of the bending tabs 13, 14 is advantageous if they are plastically bendable. They can consist of a plastically bendable metal material or a plastic material or a plastic-metal composite material. They can also be glass fiber reinforced.

Reference List

1.

roof duct

2.

fixing plate

3.

row of holes

4.

recess (of 2)

5.

flexible pan

6.

recess (of 5)

7.

water-bearing surface

8th.

roof tiles

9.

weather side

10

bushing tube

11.

Press-in bead (to 19)

12.

pipe inside

13.

bending strap 13'

14

Bending lug (with elongated hole) 14`

15

Long hole

16

Clamp attachment a, b

17

clamp plate

18

clamping screw

19

flexible pipe 19'

20

Press-in area (to 11)

21

pantile level

22

hood pick-up tube

23

blowout head

24

hood pipe

25

hood head

26

rain cover

27

vertical

28

tilt angle

29

pipe angle

30

compression point

31

arrow direction

32

arrow direction

33

arrow direction

34

pipe edge (of 22)

35

pipe edge (of 10)

36

bending direction

Claims (10)

Tilt-adjustable roof duct (1) for leading a pipeline (10, 19, 22, 23, 24, 25, 34) through a roof structure so that it is windproof and rainproof, with a roof-side fixing plate (2) which can be fastened to the roof structure and has a recess ( 4) for the passage of the pipeline (10, 19, 22, 23, 24, 25, 34), with a passage pipe (10) which is fixed to the roof in the installed state and with an inclination-adjustable section (19, 22) of the pipeline which is arranged above the roof and which displaceable relative to the fixing plate (2) and can be fixed in its aligned position with an adjustable inclination by fastening means (13, 14, 16, 17, 18) and can be connected to the lead-through tube (10) and is connected in the installed state, characterized in that for connection to the section (19, 22) of the pipeline, which is arranged above the roof and can be adjusted in inclination, in the lead-through pipe (10) there are at least two mutually opposite bending shackles (13, 14) which are plastically bendable, and of which at least one bending shackle (14) extends in its longitudinal direction is designed to be displaceable and lockable in relation to the other bending strap (13). Roof duct (1) after claim 1 , characterized in that the tilt-adjustable section (19, 22) of the pipeline arranged above the roof comprises a flexible pipe (19) and a hood receiving pipe (22) arranged thereon, the upper ends of the flexible brackets (13, 14) arranged at a distance from one another being connected to the Hood receiving tube (22) are connected. Roof duct (1) according to one of Claims 1 or 2 , characterized in that a lower attachment point of one bending shackle (13) is firmly attached to the lead-through tube (10) fixed to the roof, while the lower end of the opposite bending shackle (14) is designed to be displaceable and lockable on the lead-through tube (10). Roof duct (1) according to one of Claims 1 until 3 , characterized in that the movable and lockable Biegela cal (14) has a longitudinal guide, which is designed as a slot (15), which is associated with a clamp attachment (16a, b), which preferably consists of two detachable and lockable clamping screws (18) arranged at a mutual distance from one another. Roof duct (1) according to one of Claims 1 until 3 , characterized in that the displaceable and lockable bending strap (14) has a longitudinal guide which is designed as a toothed slot (15) and a spring-loaded engagement element engages in the toothing of the slot (15) which, depending on the displacement, moves into different tooth positions of the slot guide intervenes and is detectable there. Roof duct according to one of Claims 4 or 5 , characterized in that an adjustment device for the at least one displaceable and lockable bending strap (14) is below the fixing plate (2) and can be actuated from below a roof plane. Roof duct (1) according to one of Claims 1 until 6 , characterized in that on the roof-mounted fixing plate (2) a weather-exposed flexible socket (5) is placed, which also has a recess (6) which is aligned with the recess (4) in the underlying fixing plate (2). Roof duct (1) according to one of claims 2 until 7 , characterized in that the roof lead-through pipe (10) and the flexible brackets (13, 14) are covered and sealed by the flexible pipe (19), the hood receiving pipe (22) being sealingly connectable to a blow-out head (23). Roof duct (1) after claim 8 , characterized in that the roof-fixed cylindrical lead-through tube (10) is formed from a plastic or metal material and has an annular press-in bead (11) at the upper end, onto which the flexible tube (19) is pressed. Roof duct (1) after claim 9 , characterized in that the lead-through tube (10) is pressed by means of the press-in bead (11) in the recess (4) of the roof-mounted fixing plate (2).

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