DE9314870U1 - Security device for at least one door, preferably in escape and rescue routes - Google Patents

Description

G 1379/GM

Safety device for at least one door, preferably in escape and rescue routes

The invention relates to a safety device according to the preamble of claim 1.

Such security devices are known as so-called escape route security devices, so-called RWS systems. They are used to secure emergency exits. The application and basic structure of these systems are described, for example, in a magazine article "Schloß und Beschlagmarkt November 1989, page 382". The aim of the RWS systems is to secure escape and rescue routes, e.g. at emergency exit doors, in such a way that the doors are normally closed and cannot be opened from the outside, at least not by unauthorized persons, but can be opened easily from the inside in an emergency or open automatically in an emergency. As soon as the door is opened in an emergency, a visual or acoustic signal is given via a flashing light or siren.

Postal address:

GEZE GmbH S Co.

Postfach 1363,

Siemensstrasse 21-29

W-7250 Leonberg

Federal Republic of Germany

Telephone: (07152) 203-0

Telex: 7 24147 ge d

Fax: (07152) 20 3310

Telegrams: GEZE-Leonberg/Würlt.

Postgirokonlen:

Stuttgart 85-703 (bank code 600 10070), Zurich 80-38698

Bank accounts:

14/10083 Deutsche Bank, Stuttgart, bank code 600 70070

912 Stuttgarter Bank. Stuttgart, bank code 600901 00

2458612 Landesgirokasse, Stuttgart, bank code 60050! 01

8620035 District Savings Bank, Leonberg, bank code 603501 30

6004386 Sparkasse, Tauberbischofsheim, bank code 67352565

17-90179 Credilans ^l ,- ¹ lt-Bonk"erein, Vienna

Limited partnership, registered office in Leonberg, Register Court Leonberg HRA 4044 Personally liable partner:

GEZE Verwaltungsgesellschaft mbH, registered office in Leonberg, Register Court Leonberg HRB 1453 Management:

Brigitte Vöster-Alber (Chair),

Hermann Alber,

Rainer Kranz

The exact structure of known RWS systems is described, for example, in DE-PS 38 34 538 and DE-OS 37 16 021. There, a holding magnet or electromagnetically operated locking bolt arranged on the upper edge of the door, between the door frame and the door leaf, is provided as a door lock. An emergency button for releasing the lock and unlocking the door is installed next to the door. Alarm devices are provided above the door to indicate when the door is open. The electronic control unit intended to control these door security and monitoring elements is housed in a separate housing.

Control units with microcomputers are already being used to control RWS systems. The microcomputer is connected to the various door security and door monitoring elements via a complex computer circuit.

In practice, the control unit can be designed as a single-door control center or a multi-door control center. The well-known multi-door control centers have a particularly complex structure.

The invention is based on the object of simplifying a security device of the type mentioned at the beginning. The invention solves this problem with the subject matter of claim 1. By using the multiplexer, it is possible to control a large number of stations via the microprocessor, e.g. several door security and door monitoring elements, such as door locks, door open-close sensors, danger detectors, display devices, etc. and, if the microprocessor is designed accordingly, also one or more door drives. Designs as single-door systems or multi-door systems are possible. The multiplexer can be connected to the microprocessor on the one hand and to one or more door security or door monitoring elements on the other hand and/or to one or more electrically controllable door drives. In this case, the electronic control unit with microcomputer and multiplexer is preferably part of a control center for one door and/or part of a control center for several doors.

The control unit is advantageously arranged externally of a drive unit and/or externally of a door monitoring element. This provides high flexibility and assembly advantages. A particularly simple and cost-effective structure of an RWS system with an electrically controllable door drive is achieved if the door drive unit is connected to the electrical control unit of the RWS system and the door drive unit does not have its own control unit. A conventional electronic control unit of a door drive can be used as the electrical control unit of the RWS system. It is coupled to the multiplexer.

An embodiment of the invention is described in more detail below using the figures.

Figure 1 a front view of an emergency exit with escape door,

equipped with RWS system, door view from inside;

Figure 2 shows a block diagram of the RWS system control.

The door 1 shown is an escape door that is normally closed. It is designed as a hinged door that opens outwards. It is only opened in an emergency. A locking device 2 is attached to the upper edge of the door, which normally keeps the door in the closed position and is unlocked in an emergency via an emergency button 3 installed next to the door or a sensor handle 4 arranged on the door leaf, so that the door can be opened in an emergency. When the door is open, an optical and/or acoustic signal is emitted via a flashing light 5 or an alarm siren 6, which are installed above the door. In addition, a fire detector 7 is installed in the area above the door, which also releases the door lock in the event of a fire. The fire detector 7 can, for example, be designed as a so-called fire alarm system, consisting of a fire sensor and detector electronics.

The structure and function of the door lock 2 is known per se. It can be a holding magnet or an electric locking bolt, as described in DE-PS 38 34 538 or DE-OS 37 16 021. Alternatively or additionally, an electric door lock or an electric door opener in the area of the door handle 8 can be provided as a door lock.

In addition, the door shown has an electrically controllable door drive 10. This can be an automatic electromechanical revolving door drive, as described in DE-OS 32 02 930, for example, or an electrohydraulic drive, as described in DE-OS 32 02 966, for example. The drive 10" opens the door automatically in an emergency using a motor and then closes again automatically.

An electronic control unit 20 with a microprocessor is provided for controlling and monitoring the entire device. In the embodiment shown, the control unit 20 with the microprocessor and a power supply is housed next to the door in a common housing 9 with the emergency button 3. The same housing also contains an LED status display 11 and a key switch 12. The LED status display 11 shows whether the door is in the open or closed position. The housing 9 with the devices integrated therein forms a so-called door terminal.

The key switch 12 can be used by an authorized person to unlock the door using a key. The door lock 2 is then unlocked and the alarm devices 5 and 6 are switched off, so that the door can be opened easily by the authorized person and no alarm is triggered. The key switch 12 is also used to reset the alarm devices 5 and 6 after an emergency and, if necessary, to switch the locking device 2 back on.

As shown in Figure 1, the control unit 20 is connected via electrical lines to the door lock 2, the door drive 10, the flashing light 5, the alarm siren 6, the fire detector 7 and via lines not shown to the handle bar 4, the emergency button 3 and the key switch 12 as well as the status indicators 11. The corresponding circuit is shown in Figure 2. The circuit uses a multiplexer 22, which is connected on one side to the microprocessor 21 of the control unit 20 and on the other side to the inputs and outputs of the various door security and door monitoring elements, such as the door lock 2, flashing light 5, alarm siren 6, fire detector 7, handle bar 4, emergency button 3, LED status indicators 11 and key switch 12. The multiplexer 22 is an address-controlled switch with n data connections that are assigned to the door security and door monitoring elements shown and a data connection to the microprocessor. The data is transmitted sequentially via the data connection between the multiplexer and the microprocessor.

The embodiment shown is a single-door control unit. The use of the multiplexer 22 already brings a significant simplification of the circuit. A particular advantage arises if the drive 20 is also controlled via the control unit 20 with the microprocessor 21 and the drive 20 is connected to the microprocessor 21 via the multiplexer 22. In the embodiment, it is provided that the control unit that is used as standard in the drive 10 is used as the control unit 20 with microprocessor 21. This can then be omitted from the drive 10 in its drive housing and only be used in the control unit 20 of the RWS system, preferably externally, in a door terminal with housing 9, as shown in Figure 1.

Embodiments of multi-door control centers can be constructed in a similar way to the single-door control center shown in the figures. In this case, a common control unit 20 can be used for several doors in one terminal, also with a microprocessor 21 and a multiplexer 22, which now works together in a corresponding way with the door security and door monitoring elements of the various doors and the door drives. If the microprocessor is designed accordingly, all elements, including the door drives, can be controlled with a common control unit 20. No separate control units are then required for the individual drives of the various doors.

In special embodiments, a connection to a central control system is also implemented via the multiplexer in multi-door control centers.

Claims (9)

G 1379/GM Claims: 1. Safety device for at least one door, preferably in escape and rescue routes with electrical door security or door monitoring element, such as door lock, emergency button, sensor handle, hazard, smoke or fire detector, door position sensor, display device or the like, if necessary with door drive, such as door closer or automatic door drive, with electronic control unit with microprocessor, characterized in that the microprocessor (21) is connected to a multiplexer (22). 2. Security device according to claim 1, characterized in that the multiplexer (22) is connected on the one hand to the microprocessor (21) and on the other hand to one or more door security or door monitoring elements (2, 3, 4, 5, 6, 7) and/or to one or more electrically controllable door drives (10). 3. Security device according to claim 1 or 2, characterized in that the electronic control unit has a common control unit (20) with microprocessor (21) and multiplexer for controlling one or more door security or door monitoring elements (2, 3,""4, 5, 6, 7) for one or more doors (1) and/or for controlling one or more door drives (10) for one or more doors (1). 4. Security device according to one of the preceding claims, characterized in that the electronic control unit (20) with microprocessor (21) and multiplexer (22) is designed as part of a control center (20) for one door (1) and/or a control center (20) for several doors (1). 5. Security device according to one of the preceding claims, characterized in that the control unit (20) is arranged externally of a drive unit (10) and/or externally of a door monitoring element (2, 3, 4, 5, 6, 7). 6. Safety device according to one of the preceding claims, characterized in that the drive unit (10) is connected to the electronic control unit (20) of the safety device and the drive unit (10) does not have its own additional control unit. 7. Security device according to one of the preceding claims, characterized in that a conventional electronic control unit (20) with a microprocessor (21) of a door drive (10) is provided as the electronic control unit (20), which is connected to the multiplexer (22). 8. Safety device according to one of the preceding claims, characterized in that the control unit (20) is arranged in a separate housing in which a power supply and preferably additional devices such as display device (11), operating elements, e.g. emergency button (3), key switch (12) are also arranged. 9. Security device according to claim 8, characterized in that the common housing is designed as a door terminal, which is preferably installed "fixed" next to the door.