WO2018188743A1

WO2018188743A1 - Ceiling assembly having an automatically releasing retaining device

Info

Publication number: WO2018188743A1
Application number: PCT/EP2017/058833
Authority: WO
Inventors: Michael Backhaus
Original assignee: Emka Beschlagteile Gmbh & Co. Kg
Priority date: 2017-04-12
Filing date: 2017-04-12
Publication date: 2018-10-18
Also published as: EP3405621A1; ES2928204T3; PL3405621T3; EP3405621B1

Abstract

The invention relates to a ceiling or wall assembly (1) having a ceiling or wall structure with at least one opening (2), wherein the opening (2) is covered by a panel (3), which is retained at least by at least one retaining device (4) in the position covering the opening (2), characterised in that the retaining device (4) comprises a retaining element (5), which can be transferred from a retaining position retaining the panel (3) into a release position releasing the panel (3), wherein the retaining device (4) comprises a temperature-sensitive control element (6) which moves automatically from a first state into a second state as a result of at least one critical temperature change, and which induces the transfer of the retaining element (5) from the retaining position into the release position when a critical temperature is exceeded.

Description

Ceiling arrangement with an automatically triggering holding device

description

The present invention relates to a ceiling or wall arrangement with a ceiling or wall construction having at least one opening, wherein the opening is covered by a panel, which is held in the opening covering position at least by means of at least one holding device.

The invention particularly relates to a ceiling arrangement in a dream space. In such a dream room, a plurality of server cabinets are juxtaposed in rows, with adjacent rows of rovers forming corridors between them. More and more frequently, these passages are enclosed with a housing for better climatic control and more efficient cooling. This enclosure includes a suspended ceiling above the corridor and doors at the beginning and end of the corridor. The false ceiling comprises a ceiling construction whose openings are covered by ceiling panels.

The sprinkler systems usually installed in the boiler rooms, on the other hand, are located on the ceiling above the false ceiling and thus outside the enclosure. If there is a fire inside the enclosure, the false ceiling must be opened automatically so that the sprinkler system has access to the fire. For example, motors are used to move the panels. However, the motors must be supplied with energy and the necessary monitoring and control technology is complex and expensive and must also be regularly maintained. Object of the present invention is to eliminate the disadvantages described with respect to the prior art and in particular to provide a ceiling or wall arrangement with which the release of the openings can be made easier, cheaper and less expensive. In particular, a kit, a use and a corresponding method should be specified.

The object is achieved in particular by a ceiling or wall arrangement, a kit, a use and a method having the features of the present independent claim. Advantageous developments are specified in the dependent claims and in the description, wherein individual features of the advantageous developments in a technically meaningful manner are combined with each other as desired.

The object is achieved in particular by a ceiling or wall arrangement with the features mentioned, in which the holding device comprises a holding element, which can be transferred from a holding position holding the panel in a release position releasing the panel, wherein the holding device comprises a temperature-sensitive adjusting element, which due to at least one critical temperature change automatically passes from a first state to a second state and which conditionally when exceeding a critical temperature, the transfer of the retaining element from the holding position to the release position.

It is thus provided in particular that, when a preferably predeterminable critical temperature is exceeded, the actuating element, without an external control signal of a control device, triggers the movement of the holding element out of the holding position into the release position or carries it out himself. Thus, the holding device could independently and independently of a higher-level control device cause the opening of the ceiling or wall construction. Since the holding devices are simple in construction, can be triggered without current and also need not be networked with each other is the installation easier and cheaper. Such a holding device is also low maintenance.

The ceiling or wall arrangement is realized in particular in the form of an intermediate ceiling, which is arranged below a ceiling, to which a sprinkler system is attached. The assembly is configured to hold the respective panel in the covering position by a holding device in the holding position, while after the transfer of the holding device to the release position, the opening is released by the panel automatically moving away from the covering position , For example, the panel could rest on or on the holding element of the holding device in such a way that the panel falls out of the covering position after the transferring of the holding device into the release position.

However, it is preferred that the panel is held on the one hand by the holding device on the ceiling or wall construction and on the other hand with at least one charnier S is attached to the ceiling or wall construction, so that the panel after transferring the holding element in the release position to a S charnierachse of Hinge swings open. Thus, the panel is still attached to the ceiling or wall construction even after its automatic release of the opening and could possibly later easily swung back to its covering position. However, this also has the advantage that the panel does not fall into the corridor covered by the ceiling arrangement. It would also be conceivable that the panel is biased by a biased hinge in a position releasing the opening and held by the holding member of the holding device in the covering position.

In particular, the panel can be biased, for example, by means of a gas spring against gravity, so that the panel is pivoted away after the transfer of the retaining element in the release position of the space limited by the arrangement. Thus, the open panel does not protrude in the confined space of the arrangement, whereby a limitation of the escape routes is avoided.

The hinge may comprise at least a first hinge part and a second hinge part, which are coupled together to form a S-axis of articulation.

Alternatively, the hinge may be formed by at least one angle, wherein in the panel at least one hole, in particular at least one elongated hole is formed, with which the panel is placed on the free leg of the S at least one angle. As a result, a suspension with hinge function is realized in a simple manner.

It can be provided that the holding element and the adjusting element are realized by a single component. In this case, the change in state at a critical temperature would immediately mean the transfer from the hold position to the release position. The arrangement would thus be designed such that the panel is released, for example, by a change in the shape or dimension of the holding element at the critical temperature.

In particular, in this context it can be provided that the panel in the opening-covering position on or on the holding element up or rests, wherein the panel and the holding element overlap so that at a temperature change below the critical temperature, a relative movement between the holding element and Panel is possible without the panel being released.

However, it is preferred that the holding element and the temperature-sensitive actuating element are different components of the holding device. In this case, for example, the holding element in the release position

be biased (spring), wherein a locking element holds the holding element in the holding position and the locking element by means of the actuating element in Über- Stepping the critical temperature is released, so that the holding element comes into its release position. The locking element could in this case also be formed integrally with the actuating element as a component.

Alternatively, the actuating element can be mechanically coupled to the holding element, so that the holding element is moved indirectly or directly by the adjusting element in a change in state of the adjusting element at the critical temperature in the release position.

In an embodiment, it may be provided that the state of the actuating element changes continuously from a first state to a second state with a temperature change. Such a continuous, in particular mechanical change can be achieved, for example, with a bimetallic component. In this case, the holding device is set up such that, at a state corresponding to the critical temperature, the transfer of the holding element from the holding position to the release position is triggered.

Alternatively, however, it can also be provided that a state of the actuating element changes abruptly during a temperature change exactly at the critical temperature. Such a sudden mechanical change in particular from a first state to a second state can be achieved, for example, by a shape memory alloy as the material of the actuating element. Suitable shape memory alloys and their conditioning are well known in the art.

Preferably, the actuator changes from its first state to its second state its shape and / or its dimensions. The actuator thus has a different shape in the first state than in the second state. Alternatively, the actuator may have a different length or width in the first state than in the second state. Such a state change can take place continuously or suddenly at the critical temperature. The mechanical change of the actuating element at least at the critical temperature has to Result that the transfer of the retaining element from the holding position is mechanically conditioned in the release position. However, it can also be provided that at the critical temperature, a further parameter of the adjusting element, for example a magnetic parameter, changes, so that thereby a transfer of the retaining element from the holding position is triggered in the release position.

In a preferred embodiment, an extension of the actuating element in at least one direction of extent is shortened at least when the critical temperature is exceeded.

In a particularly preferred embodiment, the adjusting element is formed by a wire consisting in particular of a shape memory alloy which, in particular, abruptly shorts when the critical temperature is exceeded and, due to its shortening, transfers the holding element directly from the holding position to the release position. The wire is mounted with its ends in particular in a housing of the holding device and fastened with a central region on the holding element. The wire is conditioned so that it has an initial length at room temperature, which shortens when the critical temperature is exceeded, for example in the range of 70 ° Celsius to an end length. The holding element in the form of an armature movably mounted, in particular perpendicularly to the direction of extent of the wire, is linearly moved by the change in length of the wire, the armature being brought into its release position by the movement. The anchor may be biased by a spring.

The holding device is preferably set up such that the critical temperature is in the range between 40 ° Celsius and 90 ° Celsius, preferably in the range between 50 ° Celsius and 80 ° Celsius. Due to the present during the fire high temperature, the actuator is heated to the extent that it exceeds the critical temperature, whereby the transfer of the retaining element from the holding position is triggered in the release position. The control element is preferably reversible and, after cooling, returns to its first state.

In order to monitor the condition of the actuator, the actuator may be connected to electronics. For example, a resistance of the actuating element can be measured. About this the temperature of the actuator can be estimated. When using a shape memory alloy, the resistance also changes abruptly when the critical temperature is exceeded, so that the second state of the actuating element can be reliably detected. By incorporating the control element in an electronics, the control element thus also serves as a sensor.

It can also be provided that the actuating element is connected to an electronic device which triggers a change in the state of the actuating element by energizing the actuating element. Thus, the actuator reaches automatically from the first state to the second state with an increase in the room temperature, wherein in addition a state change can be brought about by energizing the control element. The transfer of the holding element in the release position can thus be triggered independently of the ambient temperature of a higher-level control of the holding position in the release position.

When using several holding devices in the cover of one or more openings can also be provided that the detected with the electronics change of state of a holding device triggers energization of an actuating element of another holding device. Thus, for example, a change in state of the control element of the fire closest to the arranged holding device can be detected, whereupon all the holding devices are triggered, so that the holding elements of all holding devices are brought into the release position. Thus, even such panels can be released, which are a little further away from the fire. The object mentioned at the outset is also achieved by a kit for a release device of a ceiling or wall arrangement comprising at least one holding device and at least one hinge, the holding device comprising a holding element which can be transferred from a holding position into a release position, wherein the holding device is a temperature-sensitive one Actuator comprises, which automatically passes from a first state to a second state due to at least one critical temperature change and which, when a critical temperature is exceeded, causes the transfer of the retaining element from the holding position to the release position.

The kit also includes a panel.

The kit may also include a biasing element, with which the panel against the S chwerkraft biased in the mounted position or can be prestressed.

The hinge of the kit comprises at least a first hinge part and a second hinge part, which can be coupled or coupled together to form a hinge axis.

Alternatively, the hinge may be formed by an angle, wherein in the panel at least one hole, in particular at least one elongated hole is formed, with which the panel is placed on the free leg of the angle. As a result, a suspension with hinge function is realized.

The present invention also relates to a use of a holding device for a ceiling or wall assembly for releasing a panel, wherein the holding device comprises a holding element, which can be transferred from a holding position holding the panel in a release position releasing the panel, wherein the holding device comprises a temperature-sensitive adjusting element , which due to at least one critical temperature automatically changes from a first state to a second state and which, when a critical temperature is exceeded, causes the transfer of the holding element from the holding position into the release position.

The above-mentioned embodiments of the holding device of the ceiling or wall arrangement are in each case individually or jointly transferable to the holding device of the kit and the use. In particular, the holding device of the kit and the use of the features of the dependent claims 4 to 9 can be developed.

The object mentioned at the outset is also achieved by a method for releasing a panel-covered opening in a wall or ceiling construction comprising at least the following steps:

Attaching a panel covering the opening in the wall or ceiling construction,

Holding the panel in the covering position by means of a retaining device located in a holding position,

Release of the panel by transferring the holding device from the holding position into a release position, wherein

the holding device automatically and de-energized passes from the holding position to the release position when a critical temperature is exceeded.

The statements on the ceiling or wall arrangement are transferable and applicable to the method and vice versa.

The invention and the technical environment will be explained by way of example with reference to FIGS. It show schematically

1 is a side view of a ceiling arrangement,

Fig. 2: a plan view of a holding device and 3 shows a detail view of a hinge with the panel swiveling up.

The ceiling assembly 1 shown in Figure 1 comprises two frames 8, which form an opening 2 between them. The opening 2 is covered by a panel 3, which is coupled on the right side with a characterizer 7, which is connected to the frame 8.

On the left side, the panel 3 rests on a holding element 5 of a holding device 4. The holding device 4 is in the position shown in FIG. 1 in a holding position.

As is apparent from Figure 2, the holding device 4 comprises a housing 9 in which the holding element 5 is mounted linearly movable. The holding device 4 further comprises an adjusting element 6 in the form of a wire, which is fastened with its two ends to the housing 9. In a middle region, the wire is coupled to the holding element 5.

The solid line shows the state of the wire at room temperature. The wire consists of a shape memory alloy, whereby the wire shortens when a critical temperature is exceeded. This shortened state is shown by the dashed line.

Since the wire is firmly connected to the holding element 5 in the middle region, the holding element 5 is drawn linearly into the housing 10 when the state of the adjusting element 6 changes, as a result of which the supporting surface for the panel 3 is displaced so that the panel 3 shown in FIG can swing up.

In Fig. 3 is a detail view of a ceiling assembly 1 during the pivoting of the panel 3 is shown. The S 7 is charnier formed by an angle 1 1, which engages with its free leg in a slot 10 in the panel 3. In the covering position of the panel 3, the panel 3 is on the one hand on the Fig. 3, not shown holding device 4 and on the other on the angle 1 1 on. After the transfer of the holding device 4 in the release position, the panel 3 pivots and is held by the angle 1 1 the frame 8 of the ceiling assembly 1.

LIST OF REFERENCE NUMBERS

ceiling arrangement

opening

panel

holder

retaining element

actuator

hinge

frame

casing

Long hole

angle

Claims

claims

1 . Ceiling or wall arrangement (1) with a ceiling or wall construction having at least one opening (2), wherein the opening (2) is covered by a panel (3) which in the position covering the opening (2) at least by means of at least one Holding device (4) is held, characterized in that the holding device (4) comprises a holding element (5) which can be transferred from a holding position holding the panel (3) in a release position releasing the panel (3), wherein the holding device (4 ) comprises a temperature-sensitive actuating element (6), which automatically passes from a first state to a second state due to at least one critical temperature change and which, when a critical temperature is exceeded, causes the transfer of the holding element (5) from the holding position to the release position.

2. Arrangement (1) according to claim 1, wherein the panel (3) on the one hand by the holding device (4) on the ceiling or wall construction (1) is held and on the other hand with at least one S charnier (7) on the ceiling or wall construction (1) is fixed, so that the panel (3) after transferring the holding element (5) in the release position about a hinge axis of the S charniers (7) swings open.

3. Arrangement (1) according to claim 2, wherein the panel (3) is biased against gravity, so that the panel (3) after transferring tion of the holding element (5) in the release position of the space of the arrangement (1) pivots away.

4. Arrangement (1) according to one of the preceding claims, wherein the adjusting element (6) between its first state and its second state changes its shape and / or dimensions.

5. Arrangement (1) according to one of the preceding claims, wherein an extension of the actuating element (6) in at least one extension direction at least when the critical temperature is exceeded.

6. Arrangement (1) according to one of the preceding claims, wherein the adjusting element (6) is formed by a wire which shortens when the critical temperature is exceeded and transferred due to its shortening the holding element (6) from the holding position to the release position.

7. Arrangement (1) according to one of the preceding claims, wherein the adjusting element (6) consists of a shape memory alloy.

8. Arrangement (1) according to any one of the preceding claims, wherein the adjusting element (6) is connected to an electronics which monitors the state of the adjusting element (6).

9. Arrangement (1) according to one of the preceding claims, wherein the adjusting element (6) is connected to an electronics, which triggers a change in the state of the adjusting element (6) by energizing the adjusting element (6).

10. Arrangement (1) according to claim 8 and 9, wherein detected with the electronics change of state of a holding device (4) energizes a control element (6) of another holding device (4) triggers.

1 1. Arrangement (1) according to one of the preceding claims, wherein the panel (3) rests on the holding element (5) in the position covering the opening (2), with the panel (3) and the holding element (5) overlapping one another a relative movement between the holding element (5) and panel (3) is possible with a temperature change below the critical temperature without the panel (3) being released.

12. Kit for a release device of a ceiling or wall assembly (1), comprising at least one holding device (4) and at least one charnier (7), wherein the holding device (4) comprises a holding element (5), which from a holding position in a Release position can be transferred, wherein the holding device (4) comprises a temperature-sensitive control element (6), which automatically passes from a first state to a second state due to at least one critical temperature change and which at exceeding a critical temperature, the transfer of the holding element (5) the holding position in the release condition conditionally.

13. Kit according to claim 1 1, wherein the hinge (7) comprises at least a first hinge part and a second S-shaped part, which are coupled together or coupled to form a hinge axis.

14. Use of a holding device (4) for a ceiling or

Wall arrangement (1) for releasing a panel (3), wherein the holding device (4) comprises a holding element (5), which can be transferred from a holding position holding the panel (3) in a release position releasing the panel (3), wherein the holding device (4) comprises a temperature-sensitive adjusting element (6), which automatically passes from a first state to a second state due to at least one critical temperature change and at Exceeding a critical temperature conditionally the transfer of the holding element (5) from the holding position to the release position.

Method for releasing an opening (2) covered by a panel (3) in a wall or ceiling construction, comprising at least the following steps:

Attaching a panel (3) covering the opening (2) in the wall or ceiling construction,

Holding the panel (3) in the covering position by means of a holding device (4) located in a holding position, releasing the panel (3) by transferring the holding device (4) from the holding position to a release position, wherein the holding device (4) automatically and de-energized from the holding position to the release position when a critical temperature is exceeded.