WO2011154214A1 - Fire door - Google Patents

Abstract

The invention relates to a fire door (10) comprising a fire door leaf (16), a closing device (20) for moving the fire door leaf (16) from an open position into a closed position, and a warning device (22), preferably electrically operated, for emitting at least one warning signal during a movement of the fire door leaf (16). In order to reduce the maintenance requirement for the warning function and to increase the operational reliability of the warning function, it is proposed (a) that the warning device (22) can be operated by means of mechanical movement energy occurring during the movement of the fire door leaf (16) in order to emit the warning signal and/or b) that a conversion device (24) is provided for converting movement energy occurring during the movement of the fire door leaf (16) into electrical energy and that the warning device (22) is connected to the conversion device (24) so that it can be supplied with the electrical energy produced by means of the conversion device (24) from the movement energy in order to emit the warning signal.

Description

 Brandschutztor

The invention relates to a fire protection door with a fire protection door leaf, a closing device for moving the fire protection door leaf from a

Open position in a closed position and a preferably electrically operated warning device for dispensing at least one warning signal during a movement of the fire protection door leaf.

Such fire doors are known, for example, from EP 1 748 140 A1, EP 1 748 135 A2 and EP 1 589 175 A2.

The term "fire protection gate" usually refers to a building closure for closing building openings in the form of passages or driveways which are suitable for the passage of two-lane vehicles

Multi-storey car parks in order to separate so different fire compartments of the underground car park or parking garage in the event of fire. Fire doors can be found, for example, in other larger buildings for separation

different fire sections such that there can drive two-lane vehicles through there. Most fire doors are used so that they are open during normal operation and held by a retaining device in the open position. The retaining device can be solved in major accidents such as in particular in case of fire or power failure. The fire door has a fire door and a locking device. The locking device is designed such that it can drive the fire protection door leaf, in particular in case of fire, from an open position into a closed position and thus can close for securing the fire protection function. For fire doors or fire doors is required that they can be closed even in case of failure of a mains power supply and that in certain types of closing movement is accompanied by audible and visual warning signals.

For the actual movement through the locking device are often battery-buffered or battery-backed electric drive systems or

mechanical energy storage, such as prestressed springs, or gravity used. In particular, closing devices with mechanical energy stores work without any problems even if the mains power supply fails. Therefore, for example, those from the above

Patent Documents EP 1 748 140 A1, EP 1 748 135 A2 or EP 1 589 175 A2 known fire doors - which are designed as sliding gates with a sliding gate - provided with power stores in the form of weights that move the fire protection gate in the closing direction upon release of a retaining device.

Is now required in such fire doors that the closing movement is accompanied by audible and visual warning signals, so far seen in commercially available fire protection doors for generating the audible and visual warning signals during motion battery-buffered or battery-backed warning signal delivery devices as warning devices. For example, a flashing lamp and a loudspeaker is provided, so that a flashing light and an audible warning signal - for example buzzing, beeping or honking - is generated during the closing movement of the fire protection door leaf.

Even if now the movement is done by mechanical energy storage such as biased springs or gravity, an additional maintenance is necessary for the generation of the audible and visual warning, since at regular intervals, this function must be checked and renewed the energy storage (battery or battery) prophylactic Need to become. The object of the invention is to provide a fire door of the type mentioned, which is less expensive to maintain and still provides a higher reliability for the warning device.

This object is achieved by a fire door with the features of the attached claim 1.

Advantageous embodiments of the invention are the subject of the dependent claims.

The invention provides a fire door with a fire door, a locking device for moving the fire door panel from a

Open position in a closed position and a preferably electrically operated warning device for dispensing at least one warning signal during a movement of the fire door wing,

wherein the warning device is operable by means of mechanical kinetic energy to deliver the warning signal.

In particular, the invention provides a fire door with a

Fire door, a locking device for moving the

Fire protection door leaf from an open position to a closed position and a warning device for dispensing at least one warning signal during a movement of the fire door wing, wherein a conversion device is provided for converting kinetic energy occurring during the movement of the fire door wing into electrical energy and wherein the warning device is connected to the conversion device to with the means of

Conversion means to be supplied from the kinetic energy generated electrical energy for issuing the warning signal.

According to the invention, the kinetic energy of the fire protection door leaf, in particular during the closing movement, can be used to generate warning signals, e.g. optical or acoustic type, use. Electrical energy storage for the

Warning device are thus unnecessary. This lowers the maintenance of the warning device and increases their reliability. According to a preferred embodiment of the invention, it is provided that the closing device has a force accumulator for storing mechanical energy, by means of which the fire protection door leaf can be driven from the open position to the closed position in case of fire.

According to another preferred embodiment of the invention, it is provided that the closing device has a traction means for connecting the force accumulator to the fire protection door leaf.

According to a further preferred embodiment of the invention it is provided that the conversion means comprise a dynamo e.g. comprising a rotor and a stator, wherein the rotor is drivable by the movement of the fire damper gate and / or by a movement of an element of the closing device.

According to a further preferred embodiment of the invention it is provided that the rotor by the traction means, e.g. by a wheel acting on the traction means, can be driven, in particular by being connected to a deflection roller for the traction means. This can be a simple and secure way for the

Conversion of kinetic energy directly from the energy storage create.

According to a further preferred embodiment of the invention it is provided that the warning device is connected to the dynamo at

Power supply through the dynamo to give at least a warning signal. Therefore, no other switching device or the like is needed for the warning device. If the dynamo provides enough electrical energy, which will be the case during the closing movement with appropriate training, then the warning signal is emitted, otherwise not.

The conversion device could be designed such that it is active only in one direction of movement, in particular in the closing direction, but not in the other direction of movement, in particular opening direction. this could be accomplished for example by a mechanical freewheel on the dynamo.

According to a further preferred embodiment of the invention it is provided that no accumulator and no battery is provided. In particular, no such energy storage is provided for the electrically operated warning device.

According to a further preferred embodiment of the invention, it is provided that the preferably electrically operated warning device is designed to deliver an optical and an acoustic warning signal. This allows specifications for certain types of fire doors in terms of

meet required warning signals uncomplicated and secure without a significant maintenance effort for the warning device arises.

According to a further preferred embodiment of the invention, it is provided that the fire door is designed as a sliding gate such that the inherently rigid fire door leaf along a rectilinear substantially

horizontal movement path between an opening end position and a closing end position is movable. This type of sliding gate is the preferred type of fire doors, as this is particularly safe the

Fire completion function can be fulfilled. The sliding door can be finished with relatively few joints and designed to be safe and easy to move.

According to another preferred embodiment of the invention are a

Locking mechanism for holding the fire door in one

Opening position and a release device for releasing the hold in case of failure, such as fire and / or power failure, provided.

An embodiment of the invention will be explained in more detail with reference to the accompanying drawings. It shows:

Fig. 1 is a schematic representation of a fire door according to a

Embodiment of the invention. The fire protection gate 10 shown schematically in the figure is used to close a passage 12 between two fire sections of a building not shown in case of fire. The fire door 10 is designed such that it in the closed state of a one-sided fire for a

specified period of time, which must be fulfilled for a construction supervisory approval as a fire protection door.

The fire protection door 10 is designed as a sliding gate 14.

The fire door 10 has a fire door 16, a guide 18 for the fire door, a closing device 20 for closing the

Fire protection door leaf, in particular in case of fire and an electrically operated warning device 22 for emitting an optical and / or acoustic warning signal during a closing movement of the fire protection door leaf 16.

To power the warning device 22 is further a

Conversion device 24 provided for converting occurring during the closing movement of the fire damper gate mechanical momentum into electrical energy.

In the exemplary embodiment of the fire protection door 10 shown here, the fire protection door leaf 18 is closed by gravity. For this purpose, the

Locking device 20 is a mechanical energy storage in the form of a

Counterweight 26, which is connected via a traction means in the form of a traction cable 28 to the fire protection gate 16. For this purpose, a first end 30 of

Pulling cable 28 fixed within a housing 32 for the counterweight 26 fixed. The traction cable 28 is then guided around a mounted on the counterweight 26 movable first guide roller 34 and a here in the upper region of the housing 32 rotatably mounted stationary second guide roller 36 and with its second end 38 on the guide 18 slidably guided in the fire door 16

connected. The conversion device 24 has a dynamo 40 connected here to the second deflection roller 36. A line 42 leaving the dynamo 40 is connected to a rectifier 44 of the warning device 22. To the

Rectifier 44 are signalers 46 connected for visual and audible warning signals.

The guide 18 has a guide rail 50, within which the

Fire door 16 with multiple idlers 52 (only one shown)

slidably guided.

Further, a detent mechanism 54 with integrated release means 56 for holding the fire damper gate 16 in the open position during the

Normal operation and to solve this sticking in case of failure, such as provided in case of fire or power failure.

Accordingly, according to one embodiment of a fire protection door 10, a dynamo 40 is installed on a deflection roller 36 for a pulling means of the closing device 20. By the movement of the traction means, generated by a mechanical energy storage - here the counterweight 26 -, the rotor of the dynamo 40 is set in rotation. The dynamo 40 thereby generates an electrical voltage. This electrical voltage is continued through the line 42 and

possibly still processed. For example, electronic components for raising and rectifying the voltage are provided. The electrical voltage generated by the mechanical movement of the locking device 20 then feeds the signal generator 46 for the audible and visual warning signals, which of course can also be combined.

Thus, an energy storage for the optical and acoustic is unnecessary

Warning signals, which reduces the maintenance effort for it. Next is the

Operational safety for the warning function increased. By suitable design, the principle can of course be transferred to gates, not by gravity, but by others

Close drive mechanisms.

For example, the dynamo can also be connected to the carrying roller 52 instead of the deflection roller 36, in order thus to supply electrical energy for the warning device 22, which then preferably rides along the fire protection gate 16.

LIST OF REFERENCES: Fire protection gate

passage

Sliding

Brandschutztorflügel

guide

closing device

warning device

converting means

counterweight

rope

first end

casing

first pulley

second deflection roller

second end

dynamo

management

rectifier

signaler

guide rail

supporting role

Retention mechanism

release device

Claims

claims 1 . Fire door (10) with a fire door (16), one Closing device (20) for moving the fire protection door leaf (16) from an open position into a closed position and a preferably electrically operated warning device (22) for emitting at least one warning signal during a movement of the fire protection door leaf (16), characterized, a) that the warning device (22) is operable by means of mechanical kinetic energy occurring during the movement of the fire protection door leaf (16) to the To give warning signal and or b) that a conversion device (24) for converting kinetic energy occurring during the movement of the fire protection door leaf (16) into electrical Energy is provided and that the warning device (22) to the Conversion device (24) is connected to the means of the Conversion means (24) to be supplied from the kinetic energy generated electrical energy to deliver the warning signal. 2. fire protection door (10) according to claim 1, characterized, in that the closing device (20) has a force accumulator for storing mechanical energy, by means of which the fire protection door leaf (16) can be driven from the open position into the closed position in case of fire. 3. fire protection door (10) according to one of the preceding claims, characterized, the closing device (20) has a traction means for connecting the energy accumulator to the fire protection door leaf (16). 4. fire protection door (10) according to one of the preceding claims, characterized, in that the conversion device (24) has a dynamo (40) which can be driven by the movement of the fire protection door leaf (16) and / or by a movement of an element of the closure device (20). 5. fire door (10) according to claim 3 and claim 4, characterized, that the dynamo (40) is connected to a deflection roller (36) for the traction means. 6. fire door (10) according to any one of claims 4 or 5, characterized, in that the warning device (22) is connected to the dynamo (40) in order to deliver the at least one warning signal when the dynamo (40) is supplied with power. 7. fire protection door (10) according to one of the preceding claims, characterized, that no accumulator and no battery is provided. 8. fire protection door (10) according to one of the preceding claims, characterized, in that the warning device (22) is designed to deliver an optical and an acoustic warning signal. 9. fire protection door (10) according to one of the preceding claims, formed as a sliding gate (14) such that the inherently rigid fire protection door leaf (16) along a rectilinear substantially horizontal trajectory between an opening end position and a closing end position is movable. 10. fire protection door (10) according to one of the preceding claims, characterized by a retaining mechanism (54) for retaining the firestop gate (16) in an open position and by a release device (56) for releasing the arrest in case of failure, such as a fire and / or power failure.