EP3475500A1

EP3475500A1 - Fire protection device for hung back-ventilated facades

Info

Publication number: EP3475500A1
Application number: EP17732365.6A
Authority: EP
Inventors: Ewald Lammer-Klupazek; Klaus HOLESINSKY; Michael Hellwig
Original assignee: Ejot Baubefestigungen GmbH
Current assignee: Ejot Baubefestigungen GmbH
Priority date: 2016-06-28
Filing date: 2017-06-16
Publication date: 2019-05-01
Anticipated expiration: 2037-06-16
Also published as: WO2018001755A1; US20190127973A1; CA3027599A1; PL3475500T3; EP3475500B1; US10570613B2; DE102016111850A1

Abstract

The invention relates to a fire protection device (10) for hung back-ventilated facades, comprising a closure element (14) which is designed to close a gap in a hung back-ventilated facade in the event of a fire, and which can be moved between an open position and a closed position, wherein a tension element (48) is provided which impinges the closure element into the closed position and which can be moved between a pretensioned position and a closing position, wherein the closure element (14) is retained in the pretensioned position by means of a securing element (50), wherein the securing element is designed in such a way that it releases the closure element when a temperature threshold value is exceeded.

Description

Title:

FIRE PROTECTION DEVICE FOR SUSPENDED REFILLED FACADES

Besehreibung

The invention relates to a fire protection device for ventilated ventilated facades, with a

Closing element, which in case of fire for closing a gap in a curtain ventilated facade

is designed and which is displaceable between an open position and a closed position, wherein a

Clamping element is provided which acts on the closing element in the closed position and between a

Biasing position and a closed position is displaceable, wherein the closing element is held by means of a securing element in the biasing position, wherein the securing element is designed such that it is the closing element at

Exceeding a temperature limit releases. Curtain ventilated facades are increasingly being used to protect buildings, especially large ones

Office buildings to generate an attractive exterior. For this purpose, the curtain-back ventilated facades of a building wall are mounted in such a way that is arranged between the building wall and the curtain-ventilated facade or between one on the building wall

Thermal insulation layer and the rear ventilated

Facade forms a gap. This so-called

Ventilation gap can often over several

Floors extend. In case of fire there is the

Possibility of getting a fire over the

Ventilation gap spreads from one floor to another floor. In case of fire one

Extending the flame and thus preventing the fire from spreading when a flame enters the ventilation gap are known in the art

Fire protection devices according to the preamble of claim 1 known.

DE 20 2014 102 196 Ul shows such

Fire protection device according to the preamble of claim 1. The closing element is formed in DE 20 2014 102 196 Ul as a flap, which is arranged on the curtain wall. This flap is secured in an open position either by a cord attachment designed as a cord or alternatively by an additional biasing element, wherein the flap attachment at a

predetermined temperature melts, so that the flap is released.

It has now been found to be detrimental to the device known from DE 20 2014 102 196 Ul that the fire protection device on the one hand only complicated Way can be attached to the curtain wall and that the fire protection device on the other hand has a complicated structure due to the flap structure. Furthermore, it is not possible for the fire protection device in a arranged on a building wall thermal barrier coating

integrate, so that from this overall a larger and more complicated structure of the entire curtain wall

results.

The invention is therefore based on the object, a

Fire protection device for ventilated rear air

Facades provide, on the one hand, easy to

mount and integrate into a thermal barrier coating and on the other hand has a simple structure and is inexpensive to produce.

This object is achieved by a fire protection device for ventilated ventilated facades with the features of claim 1. Such a fire protection device is characterized in that a fastening element is provided, which is designed for attachment to a building wall, and that the closing element is designed for fastening an insulating element to the building wall, wherein the fastening element and the closing element coaxial with a central longitudinal axis of the

Fire protection device are arranged, wherein the

Closing element is axially displaceable between the open position and the closed position. By means of such a fire protection device, an insulation element,

In particular, a fire-retardant and / or non-combustible insulation element are fastened to a building wall, wherein the closing element when a

Temperature limit can be moved to the closed position and so attached to the closing element fire-retardant and / or non-combustible insulation element is also moved into the closed position such that a so-called ventilation gap of a curtain ventilated facade can be closed. It is particularly preferred if an elongated insulating element on a full width of a

Building wall by means of a plurality of

Fire protection devices is attached so that when

Relocating the fire protection devices can be closed in their respective closed position of the ventilation gap on the entire width of the building wall. Thus, a fire protection device can be provided which is simple and inexpensive to produce and which is easy to assemble and integrate into a thermal barrier coating.

It has proved to be particularly advantageous when the clamping element axially urges the closing element in the closed position. When the clamping element the

Closing member axially acted upon in its closed position can thus be moved to its closed position, the closing element when the fuse element releases when a temperature limit, eg. In case of fire, the closing element.

An advantageous development of the fire protection device provides that the closing element surrounds the fastening element radially at least in sections. It has proved to be particularly advantageous if the

Fixing element in the region where the closing element is arranged on the fastening element, is formed circular cylindrical. Thus, the closing element on

Fastener be guided axially movable in a simple manner. According to a further embodiment of the

Fire protection device can be provided that the fuse element is designed as a fuse or KunstStoffschnür that when exceeding the

Temperature limit melts or that the

Secured element is designed as a liquid-filled glass ampoule containing an air bubble and at

Exceeding the temperature limit bursts, or that the fuse element is designed as a fusible link. If the fuse element is designed as a liquid-filled glass ampoule can due to the corrosion resistance of the glass ampoule a particularly long operability of the fire protection device, even of over 50 years,

be guaranteed.

Advantageously, it is provided that the closing element has a helical spiral attachment section which is designed for screwing into a fire-retardant and / or non-combustible insulation element.

It is particularly preferred if the helical

Spiralbefestigungsabschnitt has a helical pitch, wherein the fastening element is provided with a thread having a pitch that corresponds to the helical pitch. Thus, first the fire-retardant and / or non-combustible insulation element can be arranged on a building wall and then the fire protection device by means of a rotary movement simultaneously by means of

Fastening element on the one hand with the building wall

be connected and by means of the helical

On the other hand, in the spiral attachment section

fire retardant and / or non-combustible insulation element are introduced. A further advantageous embodiment of

Fire protection device provides that

Fastening element has a stop, wherein the clamping element between the stop and the closing element is arranged. Thus, the clamping element can be supported on the one hand on the stop of the fastener and on the other hand on the closing element and this axially into the

Apply closed position.

In order to easily attach the fire protection device to a building wall, it has proven to be advantageous if the fastener has a mounting portion and a shaft portion, wherein the

Attachment section is designed for arrangement in a building wall. The attachment section can thereby

For example, be embodied as a cementable anchor in a building wall anchor, as a thread or the like.

It is particularly advantageous if the

Fastener in the region of the shaft portion

is formed circular cylindrical.

In order to provide the largest possible contact surface for the clamping element, it has also proven to be advantageous if the stopper is designed as a flange-like annular collar, which is arranged between the fastening portion and the shank portion of the fastening element.

It is particularly advantageous if the stopper is designed as a nut, wherein the

Fastening element has an external thread, wherein the nut is screwed onto the external thread. Thus, the stop or the nut can be special be easily and inexpensively connected to the fastener.

To the fastener as easy as possible on a

Assemble building wall or fasten it has proven to be advantageous if the fastener at its end facing away from the mounting portion on

Shank portion has a torque drive section. About this torque drive section can then, for example. By means of a screw or impact tool a

Drive torque can be introduced into the fastener, so that it can be set in rotation, with an example. On the attachment portion provided thread, for example. In a building wall, for example.

arranged dowel and / or borehole can be screwed or hammered.

Another particularly advantageous embodiment of

Fire protection device provides that the shaft portion in the direction of the central longitudinal axis of the fire protection device has a length and that the closing element in the direction of the central longitudinal axis of the fire protection device has a length, wherein the length of the shaft portion is greater than the length of the closing element.

In this case, it is possible, in particular, for the shank section to project axially beyond the closing element and to have a transverse bore in the region of its end facing away from the fastening section, which has the purpose of arranging the securing element

is designed. Thus, in the transverse bore a

Fuse element are arranged such that the

Closing element can be secured in the open position, wherein when a temperature limit is exceeded, the fuse element, for example, melts and the closing element releases accordingly, so that the closing element of

Clamping element is displaced in the closed position. It is conceivable that the securing element is designed as a fuse or as Kunststoffschnür, which melts at a corresponding temperature limit.

In order to be able to easily move a fire-retardant and / or non-combustible insulation element fastened to the closing element into the closed position, it has become known as

proven advantageous when the closing element has a disk-like pressure plate at a first end and when the closing element at a second end of a

Compression sleeve, wherein the pressure sleeve at the second end of the closing element has a first cylindrical

Sleeve portion and wherein between the first end and the second end of the closing element, a second

Sleeve section is provided, with the

Closing element radially widening in the region of the second sleeve portion and wherein the pressure plate with the

Pressure sleeve at the first end in the area of the second

Sleeve section is connected. The pressure plate is advantageously formed circular.

It is particularly advantageous if the clamping element is arranged in the region of the second sleeve portion at least partially within the pressure sleeve. Thus, the clamping element from external influences such as. Before the

Ingress of moisture to be protected.

In a cost-effective and reliable development of the fire protection device, it has as

proved advantageous when the clamping element as

A helical compression spring is formed. It is, however conceivable that the clamping element is designed as a plate spring package or resilient clamping element.

The above-mentioned object is further achieved by a fire protection device with the features of claim 17. Such a fire protection device comprises at least one fire protection device according to at least one of

Claims 1 to 16 and at least one fire retardant and / or non-combustible insulation element.

In order to arrange the fuse element outside of the fire-retardant and / or non-combustible insulation element, it is advantageous if the pressure sleeve in the direction of the central longitudinal axis of the fire protection device has a length which is greater than a thickness of

Insulation element. Thus, the pressure sleeve protrudes beyond an insulating element, even if this on the

Locking element is attached.

Advantageously, a plurality of

Fire protection devices provided, wherein the

Fire protection devices have a common fuse element. Thus, when crossing the

Temperature limit all shooting elements of the

Fire protection devices simultaneously or almost

be moved simultaneously into the closed position.

The object mentioned above is also achieved by a fire protection method for curtains

ventilated facades having the features of claim 20. Such a method comprises the following steps: horizontally arranging at least one fire-retardant and / or non-combustible insulation element by means of a fire protection device according to at least one of the claims 1 to 16. Advantageously, the insulation elements are arranged with the respective fire protection devices on a horizontal line, so that a

Ventilation gap on a whole width of a

Building wall can be closed in case of fire.

It has been special for easy installation

proved advantageous when first the

Fire protection device on the building wall and then the fire retardant and / or non-combustible insulation element is attached.

Further details and advantageous embodiments of the invention will become apparent from the following description, with reference to which shown in the figures

Embodiment of the invention described in more detail and

is explained.

Figure 1 is a side view of an inventive

Fire protection device in an open position;

FIG. 2 shows a section through the fire protection device according to FIG. 1 along the line A-A; a fire protection device according to FIGS. 1 and 2 arranged in the open position as part of a fire protection device on a ventilated rear facade; and

Figure 4 shows the fire protection device according to Figure 3 with the

Fire protection device according to Figures 1 and 2 in a closed position. In the figures 1 and 2 a total of a fire protection device 10 according to the invention is shown, wherein the

Fire protection device 10 is shown in Figure 1 in an open position. Figure 2 shows the fire protection device 10 according to Figure 1 in section along the line A-A.

In Figures 3 and 4, the fire protection device 10 is shown as part of a fire protection device 12, wherein the fire protection device 10 is shown in Figure 3 in the open position and in Figure 4 in a closed position.

The fire protection device 10 is as

Fire protection device 10 designed for rear ventilated facades 13 and has a closing element 14, which in case of fire for closing a gap 16 shown in Figures 3 and 4 in a curtain

ventilated facade is designed and which is displaceable between an open position and a closed position. The closing element 14 is for fastening a

Insulating element 18 on a building wall 20 (see Fig. 3 and 4) designed.

The fire protection device 10 further includes

Fixing element 22, which is designed for attachment to a building wall 20 (see Fig. 3 and 4). The

Fastener 22 and the closure member 14 are coaxial with a central longitudinal axis 24 of the

Fire protection device 10 is arranged, wherein the

Closing element 14 axially, i. in the direction of

Central longitudinal axis 24 is displaceable between the open position and the closed position.

The closing element 14 surrounds the fastening element 22 radially (ie perpendicular to the central longitudinal axis 24) at least sections. The fastening element 22 has a fastening section 26 and a shaft section 28, wherein the fastening section 26 is designed for arrangement in a building wall 20 (compare FIGS. 3 and 4). Of the

Attachment portion 26 may be formed, for example, as a cementable in a building wall 20 anchor, as a thread or the like. That's it

Fastener 22 in the area where the

Closing element 14 is arranged on the fastening element 22, i. on the shaft portion 28, circular cylindrical. Thus, the closure member 14 on the fastener 22 and the shaft portion 28 are guided in a simple manner axially movable.

The fastening element 22 has a stop 30 which is designed as a flange-like annular collar and is arranged between the fastening section 26 and the shaft section 28 of the fastening element 22. In the present case, the stopper 30 is a nut 32

formed, wherein the fastening element 22 has an external thread, not shown in the figures, wherein the nut 32 is screwed onto the external thread. Thus, the stopper 30 and the nut 32 is particularly easy and inexpensive with the

Fastener 22 are connected.

In order to mount or fasten the fastening element 22 as simply as possible on a building wall 20, the fastening element 22 has a shaft section 28 at its end remote from the fastening section 26

Torque drive section 34 on. About this

Torque drive section 34 may then, for example, by means of a drill or a cordless screwdriver

Drive torque in the fastener 22nd be initiated, so this in a rotation

can be added, wherein a provided on the attachment portion 26 thread, for example, can be screwed into a wall 20 arranged in the dowel for fixing the fastener 22 in the building wall 20.

The closing element 14 has a disk-like pressure plate 38 at a first end 36. Furthermore, the

Closing element 14 at a second end 40 a pressure sleeve 42. The pressure sleeve 42 has at the second end 40 of the closing element 14 on a first cylindrical, in particular circular cylindrical sleeve portion 44. In addition, the pressure sleeve 42 has a second one between the first end 36 and the second end 40 of the closing element 14

Sleeve portion 46, wherein the closing member 14 in the region of the second sleeve portion 46 radially, i.

expands perpendicular to the central longitudinal axis 24. The

Pressure plate 38 is connected to the pressure sleeve 42 at the first end 36 in the region of the second sleeve portion 46. The pressure plate 38 is circular and has a diameter in the range of about 20mm to about 100mm.

The fire protection device 10 further includes a

A helical compression spring formed clamping element 48, which acts on the closing element 14 in the closed position and is displaceable between a biasing position and a closed position, wherein the closing element 48 is held by a securing element 50 in the biasing position, wherein the securing element 50 is designed such that it is the closing element 14 at

Exceeding a temperature limit releases. The clamping element 48 acts on the closing element 14 in the closed position axially. For this purpose, the clamping element 48 is between the stopper 30 and the nut 32 and the

Closing element 14 is arranged. Thus, the clamping element 48 can be supported on the one hand on the stop 30 of the fastening element 22 and on the other hand on the closing element 14 and act on this axially in the closed position.

The clamping element 48 is in the region of the second

Sleeve portion 46 at least partially within the

Pressure sleeve 42 is arranged. Thus, the clamping element 48 can be protected from external influences such as. From the ingress of moisture.

The shank portion 28 points in the direction of

Central longitudinal axis 24 of the fire protection device 10 has a length 52, wherein the closing element 14 in the direction of the central longitudinal axis 24 of the fire protection device 10 has a length 54. The length 52 of the shaft portion 28 is greater than the length 54 of the closing element 14, so that the shaft portion 28 projects axially beyond the closing element 14 when the closing element 14 is arranged on the shaft portion 28. The shaft portion 28 has in the region of its end facing away from the attachment portion 26 a transverse bore 56, which is arranged to the arrangement of

Fuse element 50 is designed. Thus, a securing element 50 can be arranged in the transverse bore 56 such that the closing element 14 can be secured in the open position, wherein when crossing a

Temperature limit, the fuse element 50, for example.

melts and the closing element 14 accordingly

releases, so that the closing element 14 is displaced from the clamping element 48 in the closed position. That's it

conceivable that the securing element 50 is formed as a fuse or as Kunststoffschnür that at a

corresponding temperature limit melts. The fire protection device 14 shown in Figures 3 and 4 comprises at least one fire protection device 10 and at least one fire retardant and / or non-combustible insulation element 18. On the building wall 20 is a

Thermal barrier layer 58 is arranged, wherein between the

Thermal insulation layer 58 an elongated trained

fire retardant and / or non-combustible insulation element 18 is secured by a plurality of fire protection devices 10.

In this case, the pressure sleeve 42 in the direction of

Center longitudinal axis 24 of the fire protection device 10 has a length 60 which is greater than a thickness 62 of the

Insulating element 18 and der Wärmedämmschicht 58. Thus, the pressure sleeve 42 projects beyond the insulating element 18 even if this on the closing element 14 of

Fire protection device 10 is attached. Thus, the fuse element 50 can be disposed outside the fire-retardant and / or non-combustible insulation element 18.

When a temperature limit value is exceeded, the securing element 50 can then, for example, be melted, so that the closing element 14 is moved from the tensioning element 48 into the

Closed position is moved and so attached to the closing element 14 fire retardant and / or non-combustible

Insulation element 18 also in the

Closed position is moved, that a so-called

Ventilation gap 16 a curtain ventilated facade 13 can be closed. Thus, by the elongated fire-retardant and / or non-combustible

Insulating element 18 of the ventilation gap 16 can be closed on a total width of the building wall 20. In case of fire can therefore be prevented that a fire on the ventilation gap 16 of a

Floor of a building to another floor of the building.

Thus, a fire protection device 10 may be provided that is simple and inexpensive to manufacture and that is easy to assemble and integrate into a thermal barrier coating 58.

Claims

claims

1. Fire protection device (10) for suspended

ventilated facades, with a closing element (14) which is designed in case of fire for closing a gap (16) in a ventilated ventilated facade and which is displaceable between an open position and a closed position, wherein a

Clamping element (48) is provided which the

Closing element (14) in the closed position

acted upon and is displaceable between a biasing position and a closed position, wherein the closing element (14) by means of a securing element (50) is held in the biasing position, wherein the

Secured element (50) is designed such that it, the closing element (14) when a

Temperature limit releases, thereby

characterized in that a fastening element (22) is provided, which is for attachment to a

Building wall (20) is designed, and that the

Closing element (14) for fixing a

Insulating element (18) on the building wall (20) is designed, wherein the fastening element (22) and the closing element (14) coaxial with a

Center longitudinal axis (24) of the fire protection device (10) are arranged, wherein the closing element (14) is axially displaceable between the open position and the closed position.

2. Fire protection device (10) for suspended

ventilated facades according to claim 1, wherein the clamping element (48) the closing element (14) in the

Closing position acted upon axially.

3. fire protection device (10) for ventilated ventilated facades according to claim 1 or 2, wherein the closing element (14) surrounds the fastening element (22) radially at least in sections.

4. Fire protection device (10) for suspended

ventilated facades according to at least one of the preceding claims, wherein the securing element (50) is designed as a fuse or KunstStoffschnür that melts when exceeding a temperature limit or wherein the fuse element is formed as a liquid-filled glass ampoule containing an air bubble and bursts when a temperature limit is exceeded, or where that

Secured element is designed as a fusible link.

5. Fire protection device (10) for suspended

ventilated facades according to at least one of the preceding claims, wherein the closing element (14) has a helical spiral fastening section which is designed for screwing into a fire-retardant and / or non-combustible insulation element.

6. Fire protection device (10) for suspended

ventilated facades according to claim 5, wherein the helical spiral attachment portion a

Has helical pitch, wherein the fastening element (22) is provided a thread, which is a

Has thread pitch that corresponds to the helical pitch.

7. Fire protection device (10) for suspended

ventilated facades after at least one of

Claims 1 to 5, wherein the fastening element (22) a stop (30), wherein the clamping element (48) between the stop (30) and the closing element (14) is arranged.

8. Fire protection device (10) for suspended

ventilated facades according to at least one of the preceding claims, wherein the fastening element (22) has a fastening section (26) and a

Shaft portion (28), wherein the

Attachment portion (26) is designed for placement in a building wall (20).

9. Fire protection device (10) for suspended

back-ventilated compartments according to claim 7 and 8, wherein the stop (30) is formed as a flange-like annular collar which is arranged between the fastening portion (26) and the shank portion (28) of the fastening element (22).

10. Fire protection device (10) for suspended

ventilated facades after at least one of

Claims 7 to 9, wherein the stop (30) as

Nut (32) is formed, wherein the

Fastener (22) has an external thread, wherein the nut (32) is screwed onto the external thread.

11. Fire protection device (10) for suspended

ventilated facades after at least one of

Claims 7 to 10, wherein the fastening element (22) at its the fastening portion (26) facing away from the end of the shaft portion (28)

Torque drive section (34).

12. Fire protection device (10) for ventilated ventilated facades after at least one of

Claims 7 to 11, wherein the shaft portion (28) in the direction of the central longitudinal axis (24) of the

Fire protection device (10) has a length (52) and wherein the closing element (14) in the direction of the central longitudinal axis (24) of the fire protection device (10) has a length (54), wherein the length (52) of the shaft portion (28) is greater than the length (54) of the closing element (14).

13. Fire protection device (10) for suspended

ventilated facades after at least one of

Claims 7 to 12, wherein the shank portion (28) axially projects beyond the closing element (14) and has a transverse bore (56) in the region of its end facing away from the fastening section (26)

Arrangement of the fuse element (50) is designed.

14. Fire protection device (10) for suspended

ventilated facades according to at least one of the preceding claims, wherein the closing element (14) has a disk-like pressure plate (38) at a first end (36) and wherein the closing element (14) has a pressure sleeve (42) at a second end (40), wherein the pressure sleeve (42) at the second end (40) of the closing element (14) has a first cylindrical

Sleeve portion (44) and wherein between the first end (36) and the second end (40) of the

Closing element (14) a second sleeve portion (46) is provided, wherein the closing element (14) in the region of the second sleeve portion (46) radially expands and wherein the pressure plate (38) with the Pressure sleeve (42) at the first end (36) in the region of the second sleeve portion (46) is connected.

15. Fire protection device (10) for suspended

ventilated facades according to claim 14, wherein the clamping element (48) in the region of the second

Sleeve portion (46) at least partially within the pressure sleeve (42) is arranged.

16. Fire protection device (10) for suspended

ventilated facades according to at least one of the preceding claims, wherein the clamping element (48) is designed as a helical compression spring.

17. Fire protection device (12), comprising at least one fire protection device (10) according to at least one of the preceding claims and at least one fire retardant and / or non-combustible insulation element (18).

18. Fire protection device (12) according to claim 17, wherein the pressure sleeve (42) in the direction of the central longitudinal axis (24) of the fire protection device (10) has a length (60) which is greater than a thickness (62) of the

Insulating element (18).

19. Fire protection device (12) according to claim 17 or 18, wherein a plurality of fire protection devices (10) is provided, wherein the fire protection devices (10) have a common securing element (50).

20. Fire protection method for ventilated rear-ventilated

Facades, comprising the following steps:

Horizontal arrangement of at least one fire-retardant and / or non-combustible insulation element (18) on a building wall (20) by means of a Fire protection device (10) according to at least one of claims 1 to 16.

A fire protection method for ventilated ventilated facades according to claim 20, wherein first the

Fire protection device (10) on the building wall (20) and then the fire retardant and / or non-combustible insulation element (18) is attached.