WO2011067024A1

WO2011067024A1 - Fire alarm and/or warning device

Info

Publication number: WO2011067024A1
Application number: PCT/EP2010/065243
Authority: WO
Inventors: Thomas Hanses; Joerg Tuermer; Manfred Schneid
Original assignee: Robert Bosch Gmbh
Priority date: 2009-12-01
Filing date: 2010-10-12
Publication date: 2011-06-09
Also published as: DE102009047358A1

Abstract

The invention relates to a fire alarm and/or warning device (1) for mounting on a mounting surface, in particular to a ceiling surface (2) having a socket section (3) which is designed to connect to the mounting surface (2) and having a functional section (4) which has a sensor (5) for detecting a fire signal and/or a signal apparatus for outputting a warning signal, wherein the functional section (5) is placed on the socket section (3) and having fastening mechanics so that the functional section (4) can be arranged in a plurality of rotational positions relative to the socket section (3).

Description

Description title

Fire alarm and / or warning device prior art

The invention relates to a fire alarm and / or warning device for mounting on a mounting surface, in particular on a ceiling surface, with a base portion, which is designed for connection to the mounting surface, and with a functional portion which has a sensor for detecting a fire signal and / or a signaling device for outputting a warning signal, wherein the functional portion is placed on the base portion.

Fire detectors are sensor units that detect primary or secondary emissions of a fire and can initiate an alarm process. Depending on the embodiment, the fire detectors register a temperature or a luminous appearance as a primary signal or a smoke density as one

Secondary signal of the fire.

It can be provided, for example, that after exceeding a certain limit temperature or smoke density an alarm is triggered. The alarm can be triggered locally by the fire detector, for example as a warning tone, or decentralized via a higher level fire alarm system

Operations, such as a fire emergency, combination of a visual alarm and an audible alarm, etc. implemented. The fire detectors are typically distributed decentrally so that several

Fire detectors are placed in the monitored areas or rooms. Often, these fire detectors wireless or wired communicate with each other and possibly with the fire alarm system. In the initial installation, it is often the case that the individual fire detectors first a pedestal is attached to the ceiling and a later

Time the actual fire alarm sensors or warning devices and the electronics are used.

The document DE 10 2004 002 592 A1 describes, for example, a

Fire detector with a base and with a connectable to the base fire detector insert, wherein the fire detector insert is connected by an axial movement with the base and detachable by a subsequent axial movement of the base again. This one - too

Ballpoint pen mechanism - attachment mechanism allows a particularly simple and quick installation of the fire detector insert.

For example, in the initial installation of the base and the wiring is mounted and snapped in a second installation step, the fire detector insert by a simple movement in the axial direction.

The document DE 198 088 72 A1, which probably forms the closest prior art, also deals with a detector, for example a fire detector, for ceiling mounting, which visible from the outside

Indicates light indicators for status or alarm message. In this document, the problem was recognized that the base must be installed in such correct position on the ceiling during the initial installation, so that a

Illuminated display after placing the detector head in the direction of the room entrance. After the installation work of the socket partially from

Subcontractors is running and these often do not pay attention to the mounting direction, it is for the fitter who will ultimately put only the detector head, considerable extra effort when the wiring of the socket dissolved again, the socket removed, new mounting holes drilled in the correct position and the socket new must be mounted and rewired. The well-known

Reference solves this problem by the fact that for the detector on the im

Operation visible detector surface part one or more annularly arranged and radiating in different directions lighting surfaces are provided. With this solution, the orientation of the detector head is therefore immaterial, since it radiates in all spatial directions.

Disclosure of the invention In the context of the invention, a fire detector and / or -warnvornchtung with the features of claim 1 is proposed. Preferred or advantageous embodiments of the invention will become apparent from the dependent claims, the following description and the accompanying drawings.

According to the invention, a fire alarm and / or warning device, in particular a fire alarm and / or a fire alarm, is described which is suitable and / or designed for mounting on a mounting surface, in particular on a ceiling surface, for example a ceiling surface. Of the

Fire detector can be used in particular as a fire gas or flue gas detector, as a heat detector, a smoke detector, in particular optical or

Photoelectric construction or ionization smoke detector, flame detector, multi-criteria detector, linear smoke detector, which consists of a transmitting unit and a receiving unit for light, in particular infrared light, which responds to a smoke-induced attenuation of the light beam between transmitter and receiver similar to a light barrier, be formed. The fire alarm can be used as an optical fire alarm, such as a signal lamp, be formed.

In particular, the fire alarm and / or warning device is realized as a structural unit, which is optionally designed for coupling to a voltage supply and / or for the transmission of signals, in particular alarm signals or control signals. For example, the fire detector and / or warning device in the maximum diameter in any direction is less than 30 cm, preferably less than 20 cm.

The fire alarm and / or warning device has a base section, which is designed to be rigid in particular, in some embodiments to be non-rotatable and / or non-displaceable on the mounting surface. Of the

Pedestal portion can as mechanical interfaces, for example, recordings, in particular through holes, have, are guided by the screws or similar mounting means and introduced into the mounting surface to secure the base portion. Thus, the base portion is screwed to the mounting surface, for example. Furthermore, the fire alarm device comprises a functional section which has a sensor for detecting a fire signal and / or a signal device for outputting a warning signal, wherein the functional section is placed on the base section. The term "mounted" preferably includes any mechanical coupling between base portion and

Function section. The sensor is z. B. as a temperature sensor, an optical sensor, a flue gas detector, etc., the signal device may be formed as an LED device, a stroboscope, etc .. Optionally, the functional section comprises further electrical and / or electronic

Function units, such as. B. optical displays, transmitting and receiving modules.

In the context of the invention it is proposed that a fastening mechanism is designed so that the functional portion can be arranged in a plurality of rotational positions relative to the base portion. In particular, the fastening mechanism allows the setting of several

Rotational positions of the functional portion on or relative to the base portion. Preferably, more than 5, in particular more than 10 and in particular more than 20 discrete and spaced from each other arranged rotational positions can be adjusted.

In particular, with the present invention, a possibility is opened to attach the functional portion of the fire detection device on the base portion of the mounting surface and align during and / or after the attachment by a rotational and / or pivoting movement.

Advantageously, it is thus possible, for example, "not

For example, the receive direction of the sensor can be aligned to fire-critical points, such as room walls, Alternatively or additionally, the orientation of the functional section can be used to create a

Optimize communication over an optional radio interface of the functional section by the antenna of the radio interface, which in the

Functional section is aligned, aligned in the direction of optimal reception. Another possible application is given when the

Function section has a visual display, in particular a display LED, which indicates the operating state and / or the alarm state of Functional section or the fire alarm device indicates by the optical display in a preferred viewing direction, in particular such that the optical display faces to an input, is aligned. Another advantage of the adjustable recording of the functional section is that in non-rotationally symmetrical designed functional sections or

Fire alarm devices, such as with square or rectangular base, to make them visually pleasing in the room. For example, if one were to hang a square fire detection device in a rectangular space, a non-parallel arrangement would

Disturb the overall picture. Due to the adjustable rotational positions of the

Function section can be aligned in retrospect, the functional section and thus the fire alarm device pleasant for the viewer to the walls.

In one possible embodiment, the multiple rotational positions are distributed over an angular range greater than 25 °, preferably greater than 80 °, in particular greater than 170 ° and in particular greater than 360 °. The rotational positions can be stepless or stepped in the angular range adjustable. Thus, it is possible that the functional section only in a limited

Angular section, for example, up to 35 ° or up to 50 ° or up to 100 ° is adjustable or that - with an angular range greater than or equal to 360 °, the angular range freely selectable or even by endless rotation is adjustable. In a first possible alternative embodiment of the functional portion can be placed on the base portion in a plurality of rotational positions. The adjustment of the rotational position occurs e.g. through a forced operation, for example one

Gearing between functional section and base section. In this alternative embodiment, the definition of the rotational position takes place during the placement of the functional section on the base section.

But it is more preferable if the functional section on the

Base portion is adjustable after placement in the multiple rotational positions. In this preferred alternative embodiment, the installer can adjust this with respect to the rotational position by simply turning the functional section. In a preferred constructive implementation, the plurality of rotational positions can be achieved by an imaginary or an actual rotation of the functional section about an imaginary axis of rotation or an imaginary rotational range. The axis of rotation is angled, preferably perpendicular to the mounting surface,

aligned. With an imaginary rotation reference is made to the alternative embodiment, in which the adjustment between the functional section and the base section before the functional section is placed on the

Base section is implemented. This is then just an imaginary rotation, since an actual rotation is not possible. The

actual rotation refers in particular to the embodiment according to claim 4. It is possible that the functional portion is rotated about an actual axis of rotation, but alternatively it is also possible that the axis of rotation is not clearly defined or angle-dependent, the

Functional section thus at a rotational adjustment about the axis of rotation or a

Turning area is precise, unstable or otherwise not exact

is rotated rotationally symmetrically. However, it is preferred that the rotation of a plane parallel or at least rectified with the plane of

Mounting surface takes place.

In a possible structural embodiment, the fastening mechanism shows a bolt, in particular a bolt portion, which may be formed in cross-section perpendicular to its longitudinal extent in said longitudinal extent with a constant cross-sectional area or even varying, in particular cone-shaped. The functional portion is adapted to be placed on the bolt and rotatable about and / or pivotable about it to reach the plurality of rotational positions.

In a further development of the invention, the fire alarm device on a clamping and / or locking device, wherein the clamping and / or

Locking device in fixing position the functional portion on the base portion clamped and / or locking fixed and in the free position rotation or pivoting of the functional section allows to reach the multiple rotational positions. The clamping and / or

Locking device may, for example, as a clip or as a

Clamp portion may be formed, which defined in the functional section is and the bolt clasping and / or clamping and / or locking engages.

In a further development of the invention, the fire alarm device shows a contact device, which enables an electrical contacting of the functional section via the base section optionally with serial interposition of the clamping and / or locking device. The clamping and / or

Locking device in this optional embodiment a double function, wherein on the one hand the clamping / locking of the functional section and on the other the transmission or passage of

Supply voltage and / or signals implemented.

In a particularly preferred embodiment, the

Contact device an endless rotation between the functional portion and base portion. For example, shows the previously described bolt

encircling, open pathways, by the clamping and / or

Locking device can be tapped by clamping. after the

Conduits are formed completely circumferentially, the

Function section are rotated together with the clamping device endlessly around the bolt, without losing the electrical contact.

In another constructive implementation of the fastening mechanism, the base portion elongated holes and the functional portion guide portions, such as guide pins, which engage in the elongated holes. The

Slotted holes are formed as circular sections about the axis of rotation, resulting from the assumption of the various rotational positions. By the

Fixing mechanism is a pivoting of the functional section to the angle defined by the slots angular range possible. Alternatively, the slots may also be integrated in the functional section and the guide sections in the base section. Also other mechanical

Coupling organs, which implement the same function, are conceivable.

It is particularly preferred if the functional section has at least one electrical and / or electronic functional unit which can be adjusted by selecting the rotational position in a transmitting and / or receiving direction.

The functional unit can on the one hand the sensor itself, a sensor antenna, an optical display, a transmitting and / or receiving device for

Be communication signals, etc.

Further features, advantages and effects of the invention will become apparent from the following description of preferred embodiments of the invention. Showing:

Figure 1 is a schematic cross-sectional view of a fire detection device as a first embodiment of the invention;

Figure 2 is a schematic plan view of the fire alarm device in Figure 1;

Figure 3 is a sectional view through the fire alarm device of

previous figures along the section line A-A;

Figure 4 shows an alternative to the embodiment of Figure 3 in the same

Presentation;

Figure 5 is a schematic representation of an example of use for the

Fire alarm device of the preceding figures;

FIG. 6 shows a further example of application in the same representation as in FIG. 5;

Figure 7 is a three-dimensional view of another embodiment of the invention in the form of a fire alarm device.

Corresponding or identical parts are each with each other

corresponding or the same reference numerals.

FIG. 1 shows a schematic side view of a

Fire alarm device 1 as a first embodiment of the invention, which is attached to a mounting surface formed as a ceiling surface 2. The fire alarm device 1 comprises a base portion 3, which permanently, for example, by a Versch robbery, with the ceiling surface of the second is connected and a sensor section 4 as a functional section, which is placed on the base portion 3. In possible embodiments, the base portion 3 is formed free of electronic and / or electrical components. In other embodiments, the pedestal portion 3 is connected to a lead, which provides electrical control signals and / or a voltage supply.

The sensor section 4 comprises at least one sensor 5, which for

Detection of a fire is suitable and / or trained.

The base section 3 shows a fastening bolt 6, which is located in the

Substantially extends perpendicular to the ceiling surface 2 and forms a receiving member for the sensor section 4. At its free end shows the

Fixing bolts 6 a groove-like, circumferential recess. 7

On the fastening bolt 6, the sensor section 4, which has a correspondingly formed receiving area, which is arranged centrally, placed. To fix the sensor section 4 to the base section 3, a fastening tab 8 is provided, which is held in the axial direction of the fastening bolt 6 in the sensor section 4 positively, for example, inserted into a receiving channel, and which engages in such a way in the recess 7, so that this is also held positively in the recess 7 in the axial direction of the mounting bolt 6. The

Fastening tab 8 may be made for example of a plastic.

As can be seen in particular from FIG. 2, which shows a schematic top view or bottom view of the fire alarm device in FIG. 1, the fastening tab 8 is in the form of an O-ring in an approximately rectangular shape

educated. The fastening tab 8 is realized in particular rigid, wherein this engages in a resting state in the recess 7 positively locking and bulges so bulging at a pressure exerted in the direction of the arrows 9 on the narrow sides of the fastening tab 8 on the long sides, so that the fastening tab. 8 arranged outside of the recess 7 and the positive connection is canceled. 3 shows the fire alarm device 1 in a schematic

Sectional view parallel to the longitudinal extent of the fastening bolt 6 and along the section line A - A in Figure 2, wherein the fastening tab 8 in the undeformed state a, which engages in the recess 7 and, marked with b, arced, so that the Tab sections of the fastening tab 8 in axial projection in the longitudinal extension of the

Fixing bolt 6 is disposed outside of the recess 7. By doing

State a, the fastening tab 8 clamps the fastening bolt 6 so that a rotation of the sensor section 4 is blocked or at least made more difficult in some embodiments. In the state b, the

Sensor section both rotated and withdrawn from the mounting bolt 6, since the positive connection is canceled.

FIG. 4 shows a further version of the fire detection device 1 as a further embodiment of the invention. Compared to the

Previous figures, this shows a contact device 10, which for transmitting the power supply and / or control or

Alarm signals is formed. In the recess 7 of the fastening bolt 6 6 circumferential power supply contacts 1 1 are arranged on the fastening bolt. In the embodiment shown are 2

Power supply contacts 1 1 shown, but it can also be provided more or less power supply contacts. As a customer, further power supply contacts 12 are arranged on the inside of the fastening tab 8, so that the contact device 10 is conductive as soon as the

Mounting tab 8 is immersed in the recess 7. Especially

Emphasize that the power supply contacts 1 1 are circumferentially continuous on the mounting bolt 6, so that the sensor section 4 can be endlessly rotated about the base portion 3, in particular about the fastening bolt 6, as a rotation axis.

Figure 5 time the fire alarm device 1 of the preceding figures in a space 13 which is bounded by walls 14 arranged rectangular. The fire alarm device is mounted on the ceiling of the room 13.

Due to the rotatable mounting of the sensor section 4 on the base section 3, it is now possible, the sensor section 4 even after attachment to the Base section 3 to pivot about the fastening bolt 6 as a rotation axis or to rotate. This is advantageously used, for example, if the sensor section 4 is not oriented parallel to the walls in a first position I, as shown by dashed lines in FIG. In this case, by a simple pivoting movement about a pivot angle α of

Sensor section 4 shapely aligned rectified to the walls 14, without loosening the attachment of the base portion 3 on the ceiling surface 2 again. FIG. 6 shows a second application example, wherein an antenna 15, which is used for the wireless transmission of signals between the

Fire detector device 1 and a radio receiver 16 is formed, is adjusted by means of a rotary motion so that the transmission and reception power is optimally adjusted.

Instead of the antenna 15, another electronic / electrical functional unit, such as an optical display, e.g. Alarm display and / or operation indicator, be positioned, which is adjusted by the rotational movement so that it is visible from a door in the room 13. Such adjustment is particularly useful if the visual display or more generally the

electronic / electrical functional unit does not transmit and / or receive circumferentially about the axis of rotation but to an angular range of e.g. is less than 90 ° for the radiation and / or reception is limited. The angle α is in the embodiment shown due to the. By the

Mounting bolt 6, mounting tab 8 and sensor section 4 formed endless rotational axis greater than 360 °.

FIG. 7 shows a schematic, three-dimensional representation of a

Base portion 3, which is formed approximately or completely circular, as a second embodiment of the invention. The base portion 3 has keyhole-like openings 17, which for receiving

Fixing screws are formed so that the base portion 3 in a known manner to the mounting surface, in particular the ceiling surface 2, can be fixed. In addition, the base portion 3 shows slots 18 which in

Longitudinal extent along a pitch circle 19 with a radius R run. Also, these slots 18 each have at one end a widened portion 20 for performing a screw or bolt head. In this embodiment, the sensor portion 4 shows guide portions which are formed, for example, as a bolt with a widened bolt head and which are inserted through the regions 20 and subsequently along the

Subcircuit 19 can be performed. The elongated holes 18 each extend through an angular range a, so that the sensor portion 4 can be adjusted freely after mounting on the base portion 3 by this angular range α. The angle range α is, for example, 30 °. Particularly preferred is the embodiment shown in Figure 7 in conjunction with a battery-powered

Sensor section 4 used, since no electrical and / or electronic contact means are provided here.

Claims

claims

1 . Fire alarm and / or warning device (1) for mounting on a

Mounting surface, in particular on a ceiling surface (2), with a base portion (3), which for connection to the

Mounting surface (2) is formed, and with a functional portion (4), which has a sensor (5) for detecting a fire signal and / or a signal device for outputting a warning signal, wherein the functional portion (5) on the

Base portion (3) is mounted, characterized by a fastening mechanism, so that the functional portion (4) in a plurality of rotational positions relative to the base portion (3) can be arranged.

2. fire detector and / or warning device (1) according to claim 1, characterized in that the plurality of rotational positions, in particular stepless or stepped, over an angular range greater than 25 °, preferably greater than 80 °, in particular greater than 170 ° and in special larger than 360 °.

3. fire detection and / or warning device (1) according to claim 1 or 2, characterized in that the functional portion (4) on the

Base section (3) in the plurality of rotational positions can be placed.

4. fire alarm and / or -warnvorrichtung (1) according to one of

preceding claims, characterized in that the

Function section (4) on the base portion (3) after placement in the plurality of rotational positions is adjustable.

5. fire detector and / or warning device (1) according to one of

previous claims, characterized in that the plurality of rotational positions by an imaginary or an actual rotation of the Functional section (4) about an imaginary axis of rotation or an imaginary range of rotation can be achieved, wherein the axis of rotation is angled, preferably normal and / or perpendicular to the mounting surface (2) aligned.

Fire alarm and / or warning device (1) according to one of

preceding claims, characterized in that the

Fixing mechanism comprises a bolt (6) on which the

Function section (4) is placed and around which the functional portion (4) can be rotated to reach the multiple rotational positions.

Fire alarm and / or warning device (1) according to one of

preceding claims, characterized by a clamping and / or locking device (8), which fixes the functional portion on the base portion in locking position and / or locking and in free position rotation or pivoting of the functional portion allows to reach the plurality of rotational positions.

Fire alarm and / or warning device according to one of the preceding claims, characterized by a contact device (10) which allows electrical contacting of the functional section (4) via the clamping and / or locking device and / or via the base section (3).

Fire alarm and / or warning device (1) according to claim 8, characterized in that the contact device (20) permits an endless rotation between the functional section (4) and the base section (3). Fire alarm and / or warning device (1) according to one of

preceding claims, characterized in that the

Fixing mechanism by elongated holes (18) in the base portion (3) and / or in the functional portion (4) and by guide portions of the functional portion (4) and of the base portion (3), which engage in the slots (18) implemented wherein the guide portions are guided by the elongated holes (18) such that a rotation between the functional portion (4) and base portion (3) is made possible, so that the plurality of rotational positions are adjustable. Fire alarm and / or warning device (1) according to one of

preceding claims, characterized in that the

Function section (4) has at least one functional unit (15) which can be adjusted by selecting the rotational position in a transmitting and / or receiving direction.