EP1365089B1 - Security device for emergency exits - Google Patents

Abstract

The system incorporates a normal door lock with a handle (1). The handle may be moved downward to open the door. There is a rectangular cover or box (2) containing an alarm mechanism. It has a baseplate (4) which moves on a slider (3) attached to the door by screws (6).The handle touches the box as it is turned and pushes it downward, sounding the alarm. There is an aperture (5) in the front of the box with a catch.

Description

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

From DE 89 14 737 U1 a device according to the preamble of claim 1 is known.

The housing of this known device, which is also referred to as "vertical door guard", is designed as a hood-shaped slide, which is held with a press fit on the mounting plate, which is referred to there as the base plate, and can be moved downwards, if over the door handle a corresponding downward force is exerted. In the housing, a locking pin is arranged, which is displaceable against the force of a compression spring perpendicular to the direction of movement of the housing to a positive fit in the alarm position, which is taken when the door handle was moved down into an opening in the mounting plate. From this position, in which the door can be opened, the locking pin can be removed only with the help of a key from the outside. The fact that the housing is held on the mounting plate with a clamping fit, there is a risk that this clamping force is too large and the door can not be opened in an emergency, as the Force that exerts the person on the door handle is insufficient to move the housing down.

The invention is an object of the invention to provide a device according to the preamble of claim 1, wherein it is ensured that in an emergency the corresponding person can safely open the door, i. moves the device into the alarm position and thereby allows unhindered opening of the door.

This object is achieved in principle by the characterizing part of claim 1.

According to the standing under bias of the compression spring locking pin has two tasks. One is to hold the housing, which is easily and unobstructedly movable downwardly on the mounting plate, in the home position and to move it downwardly as the door handle moves. In an emergency, to counteract a precisely defined, but not really inhibiting force of this movement and at the same time to ensure that after a certain movement of the door handle down the case falls by itself in the alarm position in which the housing safely releases the door handle to open the door. This alarm position is positively secured by the locking pin by the corresponding engagement in the opening in the mounting plate.

Advantageously, the device is designed as stated in claim 2. The interaction of the standing under bias of the compression spring locking pin and the detent recess ensures that the basic position is maintained that the force is required to leave this basic position with the help of the door handle, well defined and definitely not on the one hand is too large and on the other hand prevents unwanted slipping into the alarm position. The formation of the opening for the positive reception of the locking bolt as in the direction of elongated track ensures that the housing performs a correspondingly large stroke in the movement from the basic position in the alarm position, the sufficient Movement of the door handle ensures safe release of the door.

If locking pin and detent recess are designed as specified in claim 3, then the defined force for holding in the normal position, but also set to the task of this basic position accordingly well.

Advantageously, a pre-alarm position can be taken between the basic position and alarm position. If a person presses the door handle lightly downwards by mistake or without thinking carefully, the pre-alarm position is set, in which the person is alerted by an acoustic or other signal that an alarm is now triggered. If the person then refrains from the final operation of the door handle it is ensured that the device resumes the basic position and an alarm is not triggered. In this resumed basic position then the door can not be opened. To determine this Voralarmstellung different configurations are possible, as defined in the claims 4 to 6.

If the training is done as provided in claim 6 under protection, then the Voralarmstellung is easy and less complicated to achieve. The bellows is placed on the housing as a separate component. Its resilient feature ensures that the door handle is moved back to the normal position when the pressure exerted on him decreases again, without the actual alarm position was taken. At the same time, it can contain electrical contacts that trigger the pre-alarm.

Advantageously, the device is designed as specified in claim 8. The existing cover and base housing carries all the essential components, in particular the locking pin and this biasing compression spring.

If the device is designed as defined in claim 9, then there is a cylinder lock which performs various tasks. This cylinder lock is located in the lid and can be actuated by a corresponding key. On the one hand, the cylinder lock is used to secure and hold the lid to the base plate. Only when the lock cylinder occupies a certain position, the lid can be removed so that the base plate is accessible with the components arranged on it. Furthermore, the lock cylinder but also the raising of the locking pin, since with the help of the key, the various positions can be taken. It is therefore possible to move the key to a certain position and thereby move the lid with the base plate in one of the three positions. It is also possible to solve the permanent open position again and move the cover with the base plate back to the normal position.

The use of an electric motor as stated in claim 10 ensures that the device can also be actuated from a remote point. If it is recognized at another point that there is an emergency, the door handle of the corresponding emergency exit door can be released by a central alarm.

In the following the invention with reference to the drawings using exemplary embodiments will be explained in more detail.

Fig. 1

eine schematische Ansicht einer Ausführungsform der Vorrichtung nach der Erfindung in der Grundstellung;

Fig. 2

eine der Fig. 1 entsprechende Ansicht in der Voralarmstellung;

Fig. 3

eine den Figuren 1 und 2 entsprechende Ansicht in der Alarmstellung;

Fig. 4

eine den Figuren 1 bis 3 entsprechende Ansicht in der Daueroffenstellung;

Fig. 5

einen Schnitt durch die Vorrichtung der Figuren 1 bis 4 mit abgenommenen Deckel in der Grundstellung;

Fig. 6

einen der Fig. 5 entsprechenden Schnitt in der Voralarmstellung;

Fig. 7

einen den Figuren 5 und 6 entsprechenden Schnitt in der Alarmstellung;

Fig. 8

einen den Figuren 5 bis 7 entsprechenden Schnitt in der Daueroffenstellung;

Fig. 9

eine Draufsicht auf die Montageplatte mit abgenommenem Deckel und abgenommener Grundplatte in der Grundstellung;

Fig. 10

eine Draufsicht auf die Darstellung der Fig. 9 in der Voralarmstellung;

Fig. 11

eine Draufsicht auf die Darstellung der Figuren 9 und 10 in der Alarmstellung;

Fig. 12

eine Draufsicht auf die Figur 9 bis 11 in der Daueroffenstellung;

Fig. 13

eine weitere Draufsicht auf die Grundplatte in der Grundstellung;

Fig. 14

einen Schnitt gemäß der Linie A - A der Fig. 13;

Fig. 15

einen Schnitt gemäß der Linie B - B der Fig. 13;

Fig. 16

einen Längsschnitt durch die Grundplatte ohne Deckel mit den wesentlichen auf ihr angeordneten Bauteilen;

Fig. 17

eine Draufsicht auf die Darstellung der Fig. 16;

Fig. 18

eine Draufsicht auf die Grundplatte;

Fig. 19

einen Schnitt durch die Grundplatte beim Aufsetzen des Deckels zur Veranschaulichung der Befestigung und Sicherung des Deckels;

Fig. 20

einen Schnitt gemäß der Linie B - B der Fig. 23 durch eine Vorrichtung mit Profilzylinder;

Fig. 21

einen der Fig. 20 entsprechenden Schnitt gemäß der Linie B - B der Fig. 24;

Fig. 22

einen denen Figuren 20 und 21 entsprechenden Schnitt gemäß der Linie B - B der Fig. 25;

Fig. 23

einen Schnitt gemäß der Linie A - A der Fig. 20;

Fig. 24

einen Schnitt gemäß der Linie A - A der Fig. 21;

Fig. 25

einen Schnitt gemäß der Linie A - A der Fig. 22;

Fig. 26

eine Draufsicht auf die dargestellte Ausführungsform ohne Deckel mit einem Reedrelais;

Fig. 27

eine Seitenansicht der Darstellung nach Fig. 26;

Fig. 28

eine schematische perspektivische Ansicht, die derjenigen nach Fig. 1 entspricht, jedoch einer weiteren Ausführungsform der Vorrichtung nach der Erfindung in der Grundstellung;

Fig. 29

eine der Fig. 28 entsprechende Ansicht in der Voralarmstellung;

Fig. 30

eine den Figuren 28 und 29 entsprechende Ansicht in der Alarmstellung;

Fig. 31

eine den Figuren 1 bis 3 entsprechende Ansicht in der Daueroffenstellung;

Fig. 32

einen Schnitt durch die Vorrichtung der Figuren 28 bis 31 in der Grundstellung;

Fig. 33

einen der Fig. 32 entsprechenden Schnitt in der Voralarmstellung;

Fig. 34

einen den Figuren 32 und 33 entsprechenden Schnitt in der Alarmstellung;

Fig. 35

einen den Figuren 32 bis 34 entsprechenden Schnitt in der Daueroffenstellung;

Fig. 36

einen Längsschnitt durch die Grundplatte der Ausführungsform der Figuren 28 bis 31 mit den wesentlichen auf ihr angeordneten Bauteilen, jedoch ohne Deckel;

Fig. 37

eine Draufsicht auf die Darstellung der Fig. 36;

Fig. 38

einen Schnitt gemäß der Linie C - C der Fig. 39;

Fig. 39

eine Draufsicht auf die Grundplatte der Ausführungsform der Figuren 28 bis 31; und

Fig. 40

einen Schnitt gemäß der Linie D - D der Fig. 39.

It shows:

Fig. 1

a schematic view of an embodiment of the device according to the invention in the basic position;

Fig. 2

a view corresponding to Figure 1 in the Voralarmstellung.

Fig. 3

a view corresponding to Figures 1 and 2 in the alarm position;

Fig. 4

a view corresponding to Figures 1 to 3 in the continuous open position;

Fig. 5

a section through the device of Figures 1 to 4 with removed cover in the basic position;

Fig. 6

one of Figure 5 corresponding section in the Voralarmstellung.

Fig. 7

a section corresponding to Figures 5 and 6 in the alarm position;

Fig. 8

a section corresponding to Figures 5 to 7 in the continuous open position;

Fig. 9

a plan view of the mounting plate with the cover removed and removed base plate in the basic position;

Fig. 10

a plan view of the representation of Figure 9 in the Voralarmstellung.

Fig. 11

a plan view of the representation of Figures 9 and 10 in the alarm position;

Fig. 12

a plan view of the figure 9 to 11 in the continuous open position;

Fig. 13

a further plan view of the base plate in the basic position;

Fig. 14

a section along the line A - A of Fig. 13;

Fig. 15

a section along the line B - B of FIG. 13;

Fig. 16

a longitudinal section through the base plate without cover with the essential components arranged thereon;

Fig. 17

a plan view of the illustration of FIG. 16;

Fig. 18

a plan view of the base plate;

Fig. 19

a section through the base plate when placing the lid to illustrate the attachment and securing of the lid;

Fig. 20

a section along the line B - B of Figure 23 by a device with profile cylinder.

Fig. 21

a section corresponding to Figure 20 along the line B - B of Fig. 24;

Fig. 22

a section corresponding to Figures 20 and 21 along the line B - B of Fig. 25;

Fig. 23

a section along the line A - A of Fig. 20;

Fig. 24

a section along the line A - A of Fig. 21;

Fig. 25

a section along the line A - A of Fig. 22;

Fig. 26

a plan view of the illustrated embodiment without a lid with a reed relay;

Fig. 27

a side view of the illustration of FIG. 26;

Fig. 28

a schematic perspective view corresponding to that of Figure 1, but a further embodiment of the device according to the invention in the basic position.

Fig. 29

a view corresponding to FIG. 28 in the pre-alarm position;

Fig. 30

a view corresponding to Figures 28 and 29 in the alarm position;

Fig. 31

a view corresponding to Figures 1 to 3 in the continuous open position;

Fig. 32

a section through the device of Figures 28 to 31 in the basic position;

Fig. 33

one of the Figure 32 corresponding section in the pre-alarm position;

Fig. 34

a section corresponding to the figures 32 and 33 in the alarm position;

Fig. 35

a section corresponding to Figures 32 to 34 in the continuous open position;

Fig. 36

a longitudinal section through the base plate of the embodiment of Figures 28 to 31 with the essential components arranged thereon, but without a lid;

Fig. 37

a plan view of the illustration of FIG. 36;

Fig. 38

a section along the line C - C of Fig. 39;

Fig. 39

a plan view of the base plate of the embodiment of Figures 28 to 31; and

Fig. 40

a section along the line D - D of Fig. 39.

The device shown in the drawing is a so-called vertical door guard, in which the components which block the movement of the door handle 1 through this, i. be moved down with it's movement. It is only one movement, namely the depression of the door handle required to open the door and trigger the alarm case.

In the figures 1 to 4 three different positions are shown. In the position in Fig. 1 is the normal backup or home position. In Fig. 2, the door handle has been moved approximately 15 ° to a pre-alarm position. In this position, the two main components, namely the cover 2 and the base plate 4 have already been slightly moved. But they are under tension of a return spring, so that upon release of the door handle 1 again the basic position is taken.

In the alarm position shown in Fig. 3, the door handle has been moved approximately 30 ° in an alarm position. In this position, the cover 2 and the base plate fall under gravity after they have left the Voralarmstellung, ie force of the return spring has been overcome.

Figure 4 shows the permanent open position in which the door handle has been moved approximately 35 °.

In the figures 5 to 8 essential components are shown, which are arranged on the base plate 4 and ensure the receipt and fixing of the various positions.

A locking pin 8, which is designed conically and conically on its front end face, engages in the basic position in a likewise beveled locking recess 11 a. This detent recess is formed in a slide 9 which is biased by return springs 10, which are compressed upon movement from the basic position to the pre-alarm position.

The locking pin 8 is attached to a toggle lever, which is formed by a bolt lever 12 and a lever arm 14. The toggle lever is pivotable about a pivot axis 13. On the lever arm 14 engages a compression spring 15, which biases the pin lever 12 with the locking pin 8 in the direction of the base plate 4. The slider 9 and the return springs 10 are arranged in the mounting plate 3 and protected by a cover 16 and guided.

When viewing Figs. 5 to 8 it is clear that upon movement of the door handle down the lid (not shown in Figures 5 to 8) with the base plate is moved. First, the return springs 10 are compressed and the pre-alarm position (Fig. 6) is taken. This position is unstable, ie when the door handle is released, all parts move back to the normal position. Only when the locking pin 8 is also due to the inclined surfaces against the force of the compression spring 15 moves up and out of the detent recess 11 and enters the track 18 of the mounting plate 3, all parts fall down and take the alarm position (Fig. 7) one. From this position, the cover 2 and arranged on the base plate 4 parts together with this can not be pushed back into the basic position. This main alarm position can be changed again only by qualified personnel and in particular as described later with the help of a key.

The permanent open position shown in Figs. 4 and 8 can only be taken when the compression spring 15 is compressed by means of the cylinder lock described below, so that the locking pin 8 is raised and the base plate 4 moves with the lid in the continuous open position shown in Fig. 8 can be. This position can only be left again when it is acted upon by the outside by qualified personnel with the help of the profile cylinder lock according to the device.

In Figs. 9 to 12, the various positions of the components are shown, which are located in the mounting plate 3.

FIGS. 16 and 17 illustrate an electric motor 20 which drives a rack-and-pinion drive 21 with a wedge surface 22. When the electric motor 20 is turned on by remote control, the wedge surface 22 is moved under the bolt lever 12 and raises it. In this way, the lid 2 and the components mounted on the base plate leave the basic position, so that the door handle is released, without any actuation by a person. The corresponding parts fall down under gravity.

With appropriate operation of the cylinder lock, this acts on the actuating lever 24 and shifts this and shown in phantom in Fig. 19. The pivot point is designated 25. A detent 23 is slidably attached to the operating lever 24. This latch usually holds the lid by snapping behind the projection 28 firmly. Only when the latch is retracted, the projection 28 is released. Stops 29 are the attachment for the corresponding wall of the lid 2. On the opposite side there is a projection 26 and a hook 27 for holding the lid. Usually the Cover 2 securely held by the fact that the projection 26 is securely held by the hook 27. The locking lug 23 secures the lid by attacking the projection 28 on the other side. Only when the operating lever 24 is pivoted, the latch is retracted and the lid can be removed.

FIGS. 26 and 27 show an embodiment in which a reed relay 34 is provided on an electrical circuit board 35. This reed relay works with a magnet that lies in a recess of the mounting plate and is permanently attached to the door to be secured. When the device is forcibly torn off the door, the magnetic field in the area of the reed relay 34 is changed, i. this relay is activated and an alarm is triggered.

FIGS. 20 to 25 show how the profile cylinder 30 is arranged and how it is used with its closing nose 31. The profile cylinder 30 is mounted in a holder 32 and usually secured by a screw 33. When the lock cylinder is with its locking lug 31 in the position shown in Figs. 20 and 23, the basic position is taken. The locking pin 8 is located in the locking recess eleventh

When the locking lug 31 is rotated clockwise from the position shown in FIGS. 20 and 23 to the position shown in FIGS. 21 and 24, the locking lug 31 slides on a rising inclined surface of the lever arm 14 and pushes it against the force of the compression spring 15 below. As a result, the locking pin 8 is raised and it is possible to move him from the alarm position in the permanent open position. This is not possible without lifting the locking bolt by means of the lock cylinder. The movement from the basic position to the alarm position takes place as described above without the action of the lock cylinder. However, once this alarm is taken, only an authorized person using a key, this alarm position cancel, ie a movement in the Make basic position or perform a movement in the permanent exposure.

FIGS. 22 and 25 show how the removal of the cover 2 is made possible with the aid of the lock cylinder. Reference is also made to FIG. 19. In this the profile cylinder is not shown.

When the locking lug 31 is rotated in the counterclockwise direction, as shown in Fig. 25, this acts on an actuating lever 24, and shifts this and shown in phantom in Fig. 19 and indicated by the arrows in Fig. 22. The pivot point of the actuating lever 24 is designated 25. A detent 23 is provided on the actuating lever 24 and displaced accordingly. This latch 23 normally holds the lid 2 by snapping behind a projection 28 firmly. Only when the detent 23 is retracted (see Fig. 22), the projection 28 is released. Stops 29 are used for the system for the corresponding wall of the lid 2. On the opposite side there is a projection 26 and a hook 27 for holding the lid. Normally, the lid 2 is securely held by holding the projection 26 by the hook 27. The locking lug secures the lid 2 by attacking the projection 28 on the other side. Only when the operating lever 24 is pivoted by the locking lug 31, the locking lug 23 is withdrawn and the lid 2 can be removed.

In various figures mounting holes 6 are shown in the mounting plate 3. These take the mounting screws for attaching the device to the door. The mounting holes 6 are covered by the base plate, they are therefore not accessible in the normal position and in the pre-alarm position.

FIGS. 28 to 40 show a further embodiment of the device according to the invention, which is fundamentally constructed as the embodiment described above, but with regard to fixing and taking the Voralarmstellung and the components required for this purpose is designed differently. Basically, the same parts are designated by the same reference numerals.

In the second embodiment according to FIGS. 28 to 40, the slide 9 which is under tension of the return spring 10 and in which the detent recess 11 is provided for receiving the locking pin 8 in the basic position is missing. In the second embodiment, the detent recess 11 is not displaceable, i. it is provided fixed in the mounting plate 3.

The Voralarmstellung is set and taken with the help of a bellows 40 which is disposed on the lid (2) below the door handle 1. This bellows is resilient, so that the door handle 1, as it becomes clear when looking at the figures 28 and 29, can be moved slightly up and down without the alarm position is already taken. In the pre-alarm position contacts are closed in the bellows 40 and trigger a pre-alarm, which possibly prevents the person from further pushing the door handle down, but let him go, so that he resumes the basic position by the spring force of the bellows, without that the alarm position shown in FIG. 30 was taken.

In this embodiment according to FIGS. 28 to 40, fewer components are mounted on the base plate 4, i. arranged in the lid 2. This makes the device simpler, less expensive and more robust.

In both embodiments described above, the basic position is taken and fixed by the non-positive interaction of the locking bolt with the detent recess. In one embodiment, the detent recess is slightly movable with the slider to define the pre-alarm position. In the other second embodiment, the detent recess 11 is fixed in the mounting plate 3. When a certain force is exceeded, which is determined by the interaction of the end face of the locking pin and the detent recess, the basic position leave and formed by the cover 2 and the base plate 4 housing falls into the alarm position in which the locking pin is positively in the track rail 18 and can perform a stroke that is determined by the length of the track. The embodiment with regard to the assumption of the pre-alarm position differs in the two embodiments.

Claims (10)

1. Device for securing emergency exit doors or the like, which can be placed below the door handle (1) in the movement range thereof and having a housing (2, 4), which is vertically displaceable in the mounted state on a device mounting plate (3) fixable to the door from a normal position into an alarm position in which the door is released, a locking bolt (8) biased by a compression spring (15) positively engaging in an opening (18) of the mounting plate (3) in the alarm position, characterized in that the housing is held in the normal position by the biased locking bolt (8) by frictional connection to the mounting plate (3) and in the mounted state, after leaving the normal position, drops into the alarm position automatically under the action of gravity.
2. Device according to claim 1, characterized in that in the normal position the locking bolt (8) is located in a locking depression (11) of mounting plate (3) and on pressing down the door handle (1) through compression of compression spring (15) is moved out of the same and passes into an opening in the mounting plate (3) forming a guide rail (18) so as to occupy the alarm position.
3. Device according to claim 2, characterized in that the locking depression (11) and/or the face of the locking bolt (8) are designed conically and in tapered form.
4. Device according to one or more of the preceding claims, characterized in that, prior to occupying the alarm position, the door handle (1) can be moved into a prealarm position and from the latter by the spring tension of the device back into the normal position.
5. Device according to claim 4, to the extent that it is directly or indirectly dependent on claim 2, characterized in that, for fixing the prealarm position, the locking depression (11) is constructed in a slide (9), which is mounted in the mounting plate (3) and is displaceable to a limited extent against a return spring (10).
6. Device according to claim 4, characterized in that on the housing (2, 4) below the door handle (1) is formed a flexible bellows (40) for fixing the prealarm position and contains electrical contacts for triggering the prealarm.
7. Device according to one or more of the preceding claims, characterized in that the housing (2, 4) drops from the alarm position into a permanently open position through a key insertable from the outside and as a result of which the locking bolt (8) can be moved out of the positive engagement with opening (18) .
8. Device according to one or more of the preceding claims, characterized in that the housing is formed by a lid (2) and a base plate (4), which carries the locking bolt (8) and the compression spring (15) biasing the latter and is slidingly guided in the gravity direction on the mounting plate (3).
9. Device according to claim 8, characterized in that the lid (2) contains a combination lock (30), which secures the lid (2) on base plate (4) and which by means of a toggle lever (12, 14) raises the locking bolt (8) counter to compression spring (15) for an unhindered movement of lid (2) with base plate (40 out of and into the different positions.
10. Device according to one of the claims 8 or 9, characterized in that a remotely controlled electric motor (20) is provided which, by means of a rack and pinion drive (21), raises the locking bolt (8) counter to the tension of compression spring (15), so that the lid (2) and base plate (4) move under gravity action into the alarm position.

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