EP3792441A1 - Burglar protection device for a door - Google Patents

Abstract

A burglar protection device for a door has a security strip (3) for arrangement on or in a door leaf (F) of the door and for closing a gap between the door leaf (F) and a door underside (6). The safety bar (3) can be moved from a raised position to a safety position in which it closes the gap when the door is closed. The fuse strip (3) has a defensive element (32, 31, 33), the shape of which prevents the fuse strip (3) from reaching under and between the fuse strip (3) and the underside of the door (6). This burglar protection device enables optimal burglary protection, even when using a goat foot or a wire loop as a burglary tool.

Description

TECHNICAL AREA

The present invention relates to an anti-intruder device for a door.

STATE OF THE ART

In order to prevent break-ins, external doors are usually provided with a mechanical break-in protection. This is often limited to the use of several locking points, whereby when the door lock is closed, not only a lock bolt is actuated, but several bolts distributed over the height of the door are extended. The underside of the door is hardly taken into account when it comes to burglar protection.

On the underside of the door, however, access to the interior of the building can be created in a relatively simple manner, even if the lowering seal is present. For example, a wire can be pushed up through the gap between the door leaf and the floor to the door handle, or a camera pushed through the gap can provide a view of the inside of the building. Any drop-down seal that may be present can be easily lifted beforehand using a suitable lever tool, e.g. a screwdriver or a goat foot, also known as a cow foot. In addition, a door can be broken open with the help of a lever tool.

Furthermore, sealing devices which can be automatically lowered mechanically are known. They are generally used for doors in order to seal the lower gap between the door leaf and the floor against drafts, sound and light penetration. A seal such as that shown, for example, in EP 0 338 974 is revealed. It has a housing rail, one arranged therein and one that can be raised and lowered relative to this Sealing strip with a soft sealing profile and an actuating mechanism for automatically raising and lowering the sealing strip. When lowered, the soft sealing profile rests on the floor and thus seals the gap between the door leaf and the floor. Examples of corresponding lowering mechanisms are in EP 0 509 961 , DE 3 526 720 , DE 3 418 438 and DE 3 427 938 disclosed.

The drop-down seals described have proven themselves in practice. However, if they are used on exterior doors or on doors that have to be specially secured, they have the above-mentioned disadvantages of poor burglary protection. The lowered sealing strip can be easily lifted or a wire can easily be pushed under it.

Hardly any attention is paid to the thresholds with regard to burglary protection. Rather, they should run as flat as possible and should not be an obstacle for the disabled, wheelchairs, walkers, prams and the like.

EP 3 432 694 A1 discloses an automatic door gap seal with increased protection against break-ins. The sealing profile has an inclined lip which is received in a sloping pocket of the threshold when the door seal is lowered and the door is closed. This is to prevent objects from being pushed through between the door threshold and the door leaf. However, this device has the disadvantage that it can still be lifted by means of a goat foot. In addition, the bag can fill up with bugs, leaves and other rubbish. In addition, increased precision is required when assembling the device so that the bevel lip can be optimally accommodated in the pocket. The angled lip is also exposed to increased forces when the door is opened and closed and must be replaced accordingly on a regular basis.

DISCLOSURE OF THE INVENTION

It is therefore an object of the invention to create a mechanical burglar protection which optimally protects the underside of a door.

This object is achieved by a burglar protection device with the features of claims 1 and 16, respectively.

The burglar protection device according to the invention for a door has a fuse strip for arrangement on or in a door leaf of the door and for closing a gap between the door leaf and a door underside. The safety bar can be moved from a raised position into a safety position in which it closes the gap when the door is closed. The fuse strip has a defense element, the shape of which prevents the fuse strip from reaching underneath and prevents it from penetrating between the fuse strip and the underside of the door.

The shape of the defense element prevents a goat's foot or other break-in tool from being pushed under the protective device into the interior of the building. Depending on the embodiment, only reaching under and penetrating between the fuse strip and the underside of the door is prevented. In other embodiments, the tool, in particular the goat foot, is deflected and guided into an intermediate space within the safety bar. In this position, no further effective force can then be exerted on the fuse strip and thus on the door leaf.

In a preferred embodiment, the fuse strip has an extension which extends obliquely downward at least in the fuse position and which forms the defense element. The extension is arranged at a lower end of the fuse strip extending in a longitudinal direction. It protrudes at least in the securing position of the rest of the securing strip in a transverse direction running transversely to the longitudinal direction and prevents reaching under and penetration. This is a simple and inexpensive, but also an extremely effective design of the fuse strip.

As an alternative or in addition, in preferred embodiments the fuse strip has a lower floor which runs horizontally at least in the fuse position and is directed downward, the lower floor approximating in a longitudinal direction extends over the entire length of the fuse strip.

In some embodiments, the lower floor has an underside on which a spacer is arranged.

The above-mentioned extension is preferably arranged on the lower floor. In preferred embodiments, the extension is a downward sloping rib which extends over the entire length of the lower floor. The rib is disposed at a longitudinally extending end of the lower tray and extends obliquely downward from the end of the lower tray from the lower tray. It forms an extension of the lower floor in the horizontal direction.

In a preferred embodiment, the spacer and the length or the angle of the rib are selected to match one another, so that they can be used on a flat underside of the door. In other embodiments, in particular those without spacers, the shape of the threshold is preferably adapted. For example, it has a step or edge over which the extension runs when the door is closed.

The fuse strip can be designed in a simple manner if the lower base and the extension are designed together in one piece.

In a preferred embodiment, the fuse strip has a first side wall, wherein the first side wall extends upwards over the lower floor and wherein the lower floor and the first side wall are formed separately from one another. This arrangement forms a defense element. This embodiment can be designed with or without the extension mentioned above. In a variant of this embodiment, the fuse strip has a first angle profile, the first side wall forming a first leg of the first angle profile and a second leg of the first angle profile running approximately parallel above and adjacent to the lower floor. This embodiment is used to derive the force used or the deflection of the goat's foot or another break-in tool.

The fuse strip preferably has a second side wall, the second Side wall is connected to the lower floor and they together form a second angle profile.

Depending on the embodiment, the fuse strip can be brought into the fuse position in different ways. For example, it can be swiveled into this position. However, it is preferably held in a housing rail so that it can be raised and lowered. The anti-burglary protection device preferably has a mechanical lowering mechanism for lowering and raising the security strip, as well as a mechanical actuating element which can be activated automatically when the door is closed and which acts on the lowering mechanism. These elements preferably correspond to the mechanisms used in known drop-down seals. The burglar protection device can thus be used like a drop-down seal and built into the door. It preferably not only takes on the protective function against burglary, but also the sealing functions of the known drop-down seals.

Based on the known drop-down seals, the fuse strip can be at least partially made of a flexible material, in particular silicone or rubber. In one embodiment, the fuse strip has a sealing profile and it is designed as a sealing strip with a support rail.

In other embodiments, however, the entire fuse strip or at least approximately the entire fuse strip is designed to be rigid, i.e. stable. It is preferably wholly or at least partially made of a metal, in particular steel. If the fuse strip has the angle profiles mentioned above, these are preferably made of a metal, in particular steel. The fuse strip preferably has an essentially rectangular cross section. As a result, it does not offer any zones for applying leverage. It is preferably designed to be open at the top so that it can be connected to the lowering mechanism in a simple manner and in a space-saving manner.

In some embodiments, the anti-intrusion device has the known lowering mechanisms of the known lowering seals. In these variants, protection against burglary is partially provided by the shape of the fuse strip described here supported by the choice of material, or by the choice of material described here, partially supported by the shape.

In other embodiments, further means are also present which ensure protection against burglary, such as further locking elements which prevent the fuse strip from being moved out of the secured position by the action of external force. These locking members can act, for example, on the lowering mechanism or on the pivoting mechanism of the device, but also on the safety bar. Or they can be a stop that holds the fuse strip in its secured position and that can only be removed again when the door is opened.

In preferred embodiments, the burglar protection device comprises a threshold, the security strip closing the gap between the threshold and the door leaf in the security position and wherein the threshold has at least one step. The step can, for example, lead down to the outside of the building. However, it can also be an increase, which is located below the fuse strip when the door is closed.

In a further embodiment according to the invention, seen from the attack side, there is an elastic safety strip before or after the first safety strip. Depending on the variant, this can be raised and lowered into a securing position, pivoted into this position or it is always at the same height. In the latter case, their distance from the floor or from the threshold is preferably adjustable. It is preferably arranged at a slight distance from the threshold, the resulting gap being so small that no burglar tool can be pushed through the gap.

In one embodiment, the burglar protection device has a security strip which has an elastic evasive body which, after elastic deformation, assumes its original shape again.

The elastic safety strip is designed to be elastic at least in its lower region facing the threshold. At least this area preferably consists of an elastically deformable plastic, for example a foam or a rubber. Materials that have a high level of force absorption and high resilience are particularly suitable.

The fuse strip extends in its longitudinal direction preferably approximately over the entire width of the door leaf. Depending on the variant, it is formed in one piece in its longitudinal direction or it has individual partial areas which are separate from one another, but which preferably adjoin one another.

This elastic safety bar can be lifted by a goat foot, but if the goat foot is withdrawn, it returns to its original shape. This means that no permanent passages can be created underneath the door through which other break-in tools, such as cameras, could be pushed.

If the elastic fuse strip is located in front of the first fuse strip, as seen from the attack side, the view of this first fuse strip is also blocked and cannot be created.

These measures increase the time it takes to break open a door. Since burglary protection is better the longer it takes an intruder to open the door, this elastic safety strip increases the burglar protection noticeably.

This elastic safety strip can also be used as burglar protection in doors without a first safety strip, preferably in doors whose permanently deformable underside is only arranged after the elastic safety strip and which cannot be deformed without visual contact or open access.

The elastic fuse strip can be combined with a wide variety of first fuse strips. It can also be arranged between two first fuse strips or between a classic drop-down seal and a first fuse strip or between two classic drop-down seals.

The obstacle, which prevents reaching under the first fuse strip, preferably follows the elastic fuse strip as seen from the attack side. The obstacle is preferably part of the threshold and / or the first safety strip.

Further embodiments are given in the dependent claims.

The term “locked” is understood in this text to mean that the safety strip rests on the threshold or ends at such a minimal distance from the threshold that this distance cannot be penetrated by conventional burglary tools. The same applies to the term "applied". Here, too, there can be a minimal gap, which, however, prevents reaching through.

The term "reaching under" is understood on the one hand to mean that a lever tool cannot be pushed under the fuse strip enough to generate a lever effect. On the other hand, the term is understood to mean that a thin object such as a wire cannot be pushed onto the opposite side of the door leaf.

The "attack side" is the side from which unauthorized access to a building or a building interior is to be created. Usually the "attack side" is the outside of the building. The opposite side of the door is thus the "non-attack side", which usually corresponds to the inside of the building. In the text below, the terms “outside of the building”, “outside”, “outside”, “inside of the building”, “inside”, “inside” and the like are also used. They are to be understood broadly in this text, so that they are not limited to outside and inside, but generally include "attack side" and "non-attack side".

The term “door” also includes windows and gates and similar means for closing building openings.

BRIEF DESCRIPTION OF THE DRAWINGS

Figur 1

eine Ansicht eines unteren Bereichs eines Türflügels mit einer erfindungsgemässen Einbruchschutzvorrichtung in einer Sicherungsposition gemäss einer ersten Ausführungsform;

Figur 2

eine perspektivische Darstellung der Einheit gemäss Figur 1 in einer angehobenen Position;

Figur 3

eine perspektivische Darstellung der Einheit gemäss Figur 1 in der Sicherungsposition;

Figur 4

eine Ansicht eines unteren Bereichs eines Türflügels mit einer erfindungsgemässen Einbruchschutzvorrichtung in einer Sicherungsposition gemäss einer zweiten Ausführungsform;

Figur 5a

eine schematische perspektivische Darstellung einer Einheit einer erfindungsgemässen Schutzvorrichtung gemäss Figur 1 mit abgesenkter Sicherungsleiste;

Figur 5b

einen Teilschnitt durch die Einheit gemäss Figur 5a mit angehobener Sicherungsleiste;

Figur 5c

einen Teilschnitt durch die Einheit gemäss Figur 5a mit abgesenkter Sicherungsleiste;

Figur 6a

einen Längsschnitt durch einen Teil der Schutzvorrichtung gemäss Figur 1 im angehobenen Zustand;

Figur 6b

den Längsschnitt gemäss Figur 6a im abgesenkten Zustand;

Figur 7a

einen Längsschnitt durch einen Teil einer Vorrichtung gemäss Figur 1 in einer Variante im angehobenen Zustand;

Figur 7b

den Längsschnitt gemäss Figur 7a in einem teilweise abgesenkten Zustand;

Figur 7c

den Längsschnitt gemäss Figur 7a in einem noch weiter abgesenkten Zustand;

Figur 7d

den Längsschnitt gemäss Figur 7a im vollständig abgesenkten Zustand;

Figur 8a

einen Längsschnitt durch einen Teil einer Vorrichtung gemäss Figur 1 in einer zweiten Variante im angehobenen Zustand;

Figur 8b

den Längsschnitt gemäss Figur 8a in einem teilweise abgesenkten Zustand;

Figur 8c

den Längsschnitt gemäss Figur 8a in einem noch weiter abgesenkten Zustand;

Figur 8d

den Längsschnitt gemäss Figur 8a im vollständig abgesenkten Zustand;

Figur 9

eine Ansicht eines unteren Bereichs eines Türflügels mit einer erfindungsgemässen Einbruchschutzvorrichtung in einer Sicherungsposition gemäss einer dritten Ausführungsform.

Figur 10

eine Ansicht eines unteren Bereichs eines Türflügels mit einer erfindungsgemässen Einbruchschutzvorrichtung in einer Sicherungsposition gemäss einer vierten Ausführungsform,

Figur 11

eine Ansicht eines unteren Bereichs eines Türflügels mit einer erfindungsgemässen Einbruchschutzvorrichtung in einer Sicherungsposition gemäss einer fünften Ausführungsform und

Figur 12

eine perspektivische Darstellung eines Teils der Einbruchschutzvorrichtung gemäss Figur 11 in einer Variante der fünften Ausführungsform.

Preferred embodiments of the invention are described below with reference to the drawings, which are only used for explanation and are not to be interpreted as restrictive. In the drawings show:

Figure 1

a view of a lower area of a door leaf with a burglar protection device according to the invention in a secured position according to a first embodiment;

Figure 2

a perspective view of the unit according to Figure 1 in a raised position;

Figure 3

a perspective view of the unit according to Figure 1 in the secured position;

Figure 4

a view of a lower area of a door leaf with a burglar protection device according to the invention in a secured position according to a second embodiment;

Figure 5a

a schematic perspective illustration of a unit of a protective device according to the invention according to FIG Figure 1 with lowered fuse strip;

Figure 5b

a partial section through the unit according to Figure 5a with raised fuse strip;

Figure 5c

a partial section through the unit according to Figure 5a with lowered fuse strip;

Figure 6a

a longitudinal section through part of the protective device according to Figure 1 when raised;

Figure 6b

the longitudinal section according to Figure 6a when lowered;

Figure 7a

a longitudinal section through part of a device according to Figure 1 in a variant in the raised state;

Figure 7b

the longitudinal section according to Figure 7a in a partially lowered state;

Figure 7c

the longitudinal section according to Figure 7a in an even further lowered state;

Figure 7d

the longitudinal section according to Figure 7a when fully lowered;

Figure 8a

a longitudinal section through part of a device according to Figure 1 in a second variant in the raised state;

Figure 8b

the longitudinal section according to Figure 8a in a partially lowered state;

Figure 8c

the longitudinal section according to Figure 8a in an even further lowered state;

Figure 8d

the longitudinal section according to Figure 8a when fully lowered;

Figure 9

a view of a lower area of a door leaf with a burglar protection device according to the invention in a secured position according to a third embodiment.

Figure 10

a view of a lower area of a door leaf with a burglar protection device according to the invention in a secured position according to a fourth embodiment,

Figure 11

a view of a lower area of a door leaf with a burglar protection device according to the invention in a secured position according to a fifth embodiment and

Figure 12

a perspective view of part of the burglar protection device according to Figure 11 in a variant of the fifth embodiment.

DESCRIPTION OF PREFERRED EMBODIMENTS

In the Figures 1 to 3 a first embodiment of the inventive burglar protection device is shown. It has a fuse strip 3, which is in a is arranged downwardly open groove of a door leaf F of a door. It is preferably a wing door and the door wing F is designed to be pivotable. The burglar protection device has a housing rail 1 which is fastened to the door leaf F on the front side by known means, for example with a fastening bracket each. The housing rail 1 is preferably a metal profile, preferably made of aluminum. It preferably extends approximately over the entire width of the door leaf. The fuse strip 3 is held in the housing rail 1 so that it can be raised and lowered relative to the housing rail 1. The associated lowering mechanism is not shown here.

The lowering mechanism is preferably a mechanism which is automatically actuated when the door leaf F is closed and which lowers the safety strip 3. When the door leaf F is opened, the lowering mechanism, usually due to return springs, automatically and automatically raises the safety strip 3 again. For this purpose, there is preferably an actuating element, here in the form of a release button 2, which protrudes from the housing rail 1 and the door leaf F at the front.

In a simple embodiment, a lowering mechanism is used, as is used for lowering seals. These are known in the prior art and are manufactured and sold by the applicant himself, for example. For example, the release button is connected to a slide to which one end of at least one leaf spring is attached. The middle area of the leaf spring is attached to a sealing strip, in this case to the fuse strip, and the second end of the leaf spring is pivotably mounted on the housing rail. The leaf spring is preferably attached to the inner underside of the fuse strip. If the release button is pressed in when the door is closed, the slide moves in the longitudinal direction of the seal, the at least one leaf spring is tensioned and the safety bar is lowered.

Instead of these well-known lowering mechanisms, mechanisms can also be used which ensure additional protection against break-ins. Examples of this are given later in the text using the Figures 5a to 8d described.

In this exemplary embodiment, the fuse strip 3 has two angle profiles, both of which preferably extend over the entire length of the housing rail 1. they are each preferably formed in one piece. However, they can also be made slightly longer or shorter, for example. The angle profiles are preferably stable or stiff, in particular made of metal. They are preferably made of steel. They preferably each form a right angle. The cross section of the fuse strip is preferably essentially rectangular. The fuse strip is preferably designed to be open at the top.

A first angle profile has a first and a second leg. The first leg forms a first vertical side wall 33. The second leg 34 forms a horizontally extending upper floor.

The second angle profile has a first and a second leg and an extension. The first leg forms a second vertical side wall 30, the second leg a lower base 31. The extension is integrally formed on the lower base 31 and forms a downwardly sloping rib 32.

The first angle profile is placed over the second angle profile so that the upper floor 34 comes to lie above the lower floor 31. There can be a distance between them or the upper floor 34 can rest on the lower floor 31. Preferably, however, the two floors are not connected to one another. The two angle profiles are preferably not connected directly to one another. They are preferably only connected to one another via the lowering mechanism, not shown here.

The two side walls 30, 33 preferably run at a distance, but parallel to one another. The lower floor 31 is preferably made wider than the upper floor 34 and protrudes from this and the first side wall in a direction transverse to the longitudinal direction. The cross section of the elements of the fuse strip described here is preferably constant over the entire length of the device, with the exception of possible fastening openings and other fastening elements.

The burglar protection device also has a threshold 6 which is arranged on or in the building floor. When the door is closed, the safety strip closes a gap between the underside of the door leaf F and the threshold 6. Is none If there is a threshold, it seals the gap between the door leaf F and another underside of the door, for example the floor of the building itself.

The threshold 6 is preferably adapted to the shape of the fuse strip 3. In this example, it therefore has a horizontally running support surface 60 for supporting the fuse strip 3. This support surface 60 extends into the inside of the building or the non-attack side I.

Towards the attack side A, usually to the outside of the building, the threshold 6 has a step, here in the form of an edge 61. This edge 61 merges into a horizontally extending outer threshold area 63 via an outwardly rising inclined surface 62.

The extension, here the rib 32, is directed towards the attack side A and protrudes from the other parts of the fuse strip 3 on this side. When the door is closed, the downward sloping rib 32 is located above the edge 61.

Based on Figures 2 and 3 it can be seen how the safety strip moves towards the edge 61 when the door F is closed. In Figure 2 the fuse strip 3 is still raised. If it is now lowered when the door F is closed, it reaches the in Figure 3 position shown.

Thus, as in Figure 1 it can be seen that a goat foot G cannot be pushed under this rib 32. The fuse strip 3 cannot be lifted below the rib 32 by the action of an external force. Rather, the goat foot G is deflected and slides between the first side wall 33 or the lower floor 34 and the upper floor 31 into an intermediate space in the safety strip 3. In this gap, he can bend the lower floor 34 at most. Thanks to the shape of the fuse strip, it is also not possible, even when reaching into the space, to lift the fuse strip 3 in order to gain access to the inside of the building.

However, it is not absolutely necessary to adapt the shape of the threshold 6 to the fuse strip 6. The fuse strip 6 already described can also be used in differently shaped thresholds 6 are used. An example of this is in Figure 4 shown. A spacer 5 is attached to the underside of the lower base 31. This spacer 5 is preferably made of a soft, elastic material. For example, it consists of silicone or rubber. The underside of the spacer 5 is preferably aligned with the free end of the extension 32 in a common plane. The threshold 6 can be formed in this way without elevations and depressions.

In the Figures 5a to 8d three embodiments are shown with lowering mechanisms, which ensure additional protection against burglary. The figures show a fuse strip with the reference numeral 400. This fuse strip is made in one piece from a metal, in particular from steel. Variants are possible in all of the embodiments described in this text, for example the upper base and / or the lower base and / or the extension can be omitted.

In the following, the fuse strip is sometimes referred to as a lowering strip.

In the Figures 5a to 5c a first embodiment is shown with an extended lowering mechanism. As in Figure 5a As can be seen, this embodiment has the housing rail 1, a lowering strip 400 held therein such that it can be raised and lowered, the release button 2, a lowering mechanism 900 and mounting bracket 10.

The housing rail 1 is preferably a U-shaped profile that is open at the bottom. The housing rail 1 can be fastened to a lower end face of a window or door sash or in a groove arranged therein by means of the fastening bracket 10. Other types of fastening and other types of fastening means are known from the prior art and can also be used here.

The lowering bar 400 is preferably also a U-shaped profile, but which is designed to be open at the top. The lowering bar 400 is preferably made of aluminum or steel or of another rigid or rigid material. It has two parallel legs and a web connecting these two legs, which in the lowered state on the threshold 1 rests. In order to avoid rattling, the web can be provided with a soft material, for example with a silicone coating or with a rubber, foam or felt pad. Rattling can also be avoided if the lowering bar can only be lowered to a minimal distance from the threshold. This is a preferred option.

The lowering strip 400 is preferably designed in such a way that, in the lowered state, it forms a rigid barrier over the entire width of the door and cannot be pressed in by external forces. In addition, it preferably does not have any through holes that are exposed outside the housing rail 1 in the lowered state.

The release button 2 protrudes from the housing rail 1. It is connected to the lowering mechanism 900. The lowering mechanism preferably comprises a slide, not shown here, which is connected to the operating button 2 via an operating rod 930. The slide extends approximately over the length of the housing rail 1 and thus the device.

The lowering mechanism 400 also has at least one leaf spring 910. Two or more leaf springs 910 are preferably arranged one behind the other in the longitudinal direction L of the device. Each leaf spring 910 is preferably connected with a first end on the slide, with a second end on the housing rail 1 and in a central area with the lowering strip 400. In these examples, a fastening block 920, preferably made of plastic or aluminum, is fastened in the interior of the lowering strip 400 for the last-mentioned connection. The lowering mechanism thus corresponds to the known lowering mechanisms mentioned at the beginning. However, other lowering mechanisms can also be used with the locking means according to the invention.

In the Figures 5b and 6a the lowering bar is shown in the raised position. The actuation button 2 protrudes, ie the door leaf is open. In the Figures 5a , 5c and 6b a situation is shown as it arises when the door leaf is closed. The actuation button 2 rests on the door frame and is pressed into the housing rail 1 by this. The leaf springs 910 are tensioned, as shown in FIG Figure 5c is shown. As a result, the lowering bar 400 is lowered so that it closes the gap between Underside of door leaf and threshold 1 closed or minimized. It is preferably designed in such a way that, as mentioned above, a minimal gap remains.

As in the Figures 5b to 6b As can be clearly seen, the device according to the invention comprises at least one, here four, simple locking supports 800. These simple locking supports 800 each have a swivel arm 801 which protrudes into the interior of the lowering strip 400. In the Figures 5b and 5c the lowering bar 400 is only partially shown so that its interior can be seen. In the Figures 6a and 6b the cutting plane runs through this interior.

The pivot arm 801 is held pivotably on a bearing, here called pivot axis 805. The pivot axis 805 is attached to the housing rail 1 and runs horizontally and transversely to the longitudinal direction L of the device. The pivot axis 805 is held in a bearing block 940, which is firmly connected to the slide. As a result, the bearing or the pivot axis 805 can be displaced in the longitudinal direction L of the device by means of the actuating button 2.

A control pin 804 is held in a fixed position in the housing rail 1 at a distance from and laterally offset from the pivot axis 805. It also extends horizontally and transversely to the longitudinal direction L of the device. In the lower area of the lowering bar 400 there is also a locking pin 806, which is aligned in the same way as the control pin 804. The lowering bar 400 has a recess 803 in the upper area on both sides, ie in both legs, which the control pin 804 at least in raised state enforced. This is in Figure 6a good to see.

The pivot arm 801 has a first end which is penetrated by the pivot axis 805, and a second end which is freely formed. The end face of this second end forms a contact face 802 which, in the lowered state, contacts the inside of the lowering strip 400, more precisely the inside of the closed web.

In the area of the free second end there is also a recess 803 which receives the locking pin 806 in the lowered state.

Like looking at the Figures 6a and 6b As can be clearly seen, the pivot arm 801 is in an upwardly pivoted position when the door leaf is open and the lowering strip 400 is raised. The control pin 804 penetrates the recess 803 of the lowering strip 400 and supports the swivel arm 801.

If the door leaf is closed, the actuating button 2 is pressed in and the slide moves together with the pivot axis along the longitudinal direction of the housing rail 1. The pivot arm 801 moves around the control pin 804 until its lower end engages around the locking pin 806. This is in Figure 6b shown.

In Figure 6b the contact surface 802 ends at a distance from the inner surface of the lowering bar 400. However, the stroke of the device is preferably set such that the contact surface 802 touches the surface or only a minimal distance is present which prevents the lowering bar from being raised sufficiently by means of a break-in tool.

If the door leaf is opened again, the slide pushes the pivot axis 805 again in the other direction and the pivot arm 801 is raised again thanks to the control pin 804.

The mode of operation was explained above using a single swivel arm. Of course, all swivel arms move synchronously with one another, since they are individually attached to the slide via their respective swivel axes.

In the Figures 7a to 7d a first variant of this unit according to the invention is shown. The lowering mechanism is the same as described above. The other components are also the same. Instead of the simple locking bracket, however, a single-toothed locking bracket 810 is provided here. In this embodiment, too, several such locking supports 810 can be arranged one behind the other in the longitudinal direction L.

The single-toothed locking support 810 has a swivel arm 811 with a first end and a free second end. The swivel arm 811 can be swiveled about a swivel axis 816. The pivot axis 816 is, however, arranged in a stationary manner and fastened to the housing rail 1.

There is an upper rack 814, which is arranged on the slide and can be moved together with it in the longitudinal direction L of the device. The upper end of the swivel arm 811 is designed as a partial toothed ring 813. The tooth part ring 813 unwinds when the slide is longitudinally displaced along the teeth 815 of the upper rack 814 and thereby pivots the pivot arm 811 about the pivot axis 816. The free second end of the pivot arm 811 is designed as a curved contact surface 812, which is located on the inner surface of the Lowering bar 400 rolls off, depending on the variant, resting against the inner surface or being at a minimal distance therefrom. This embodiment does not require any control or locking pins.

In the embodiment according to the Figures 8a to 8d there is not only a first upper toothing, which forms a drive described above, but it also has a lower toothing, which represents a safeguard against slipping. The device in turn comprises the components already described, with a double-toothed locking support 820 being present. A pivot arm 821 has an upper ring gear 823 and a lower ring gear 822, which forms the contact surface. The swivel arm 821 can in turn swivel about a swivel axis 826 which is arranged in a stationary manner in the housing rail 1. An upper rack 824 with teeth 825 is arranged on the slide and a lower rack 827 is arranged on the lowering bar, more precisely on the inner surface of the web. As can be seen by looking at these figures together, no control pin or locking pin is necessary here either. Depending on the setting of the stroke, the swivel arm 821 is swiveled to a greater or lesser extent, ie the involute formed by the lower tooth part ring 822 does not always unwind on the lower toothed rack 827 to the same extent. In spite of this, burglary protection is always guaranteed, since this arrangement prevents the sealing strip from being displaced horizontally by the burglary tool and thus from displacing horizontally, that is to say from slipping, of the locking support.

In Figure 9 is a further embodiment of the invention Burglar protection device shown. The fuse strip 3 is designed as a sealing strip in this case. It has a rigid support rail 35, for example made of aluminum or steel, which preferably extends over the entire length of the housing rail 1. It can also be made longer or shorter. A sealing profile is arranged on the support rail 35. The sealing profile is made of a soft material, preferably silicone or rubber.

The sealing profile has the first and the second side wall 33, 30, the lower base 31 and the extension 32. The sealing profile can be formed in several pieces. However, it is preferably in one piece, as shown here. The lower floor 31 connects the two side walls 33, 30 to one another and forms a lower web. The bottom is relatively thick compared to the side walls. Preferably it is relatively stiff. For example, it can have a greater Shore hardness than the side walls. The extension is in turn designed as a protruding rib 32 directed obliquely downward. This rib 32 is also relatively thick, but thins towards the free end. It can also be relatively stiff, i.e. designed with a greater or greater Shore hardness.

This sealing strip 3 can be used on different thresholds and door bottoms. However, the threshold 6 preferably has a step in the form of an elevation 64 in the area of the safety strip 3, which step corresponds to the angle of inclination of the extension 32. If the angle of inclination of the extension 32 is slightly larger than the inclination of the elevation 64, the extension 32 rests on with pretension. Reaching under with a goat foot or with a wire is made even more difficult.

This embodiment has the advantage that an optimal sealing function is combined with simultaneous burglary protection in the same component. This saves space and costs.

In the Figures 10 and 11 two further embodiments according to the invention are shown. The same elements are provided with the same reference symbols as above. A door leaf F is shown. A metal door is shown in the figures. The door leaf F can, however, also be a plastic construction or a wooden door. It is preferably an outside door of a building.

On the underside of the door, preferably in a corresponding groove or receptacle, a first door seal D1, which is well known in the prior art, can be automatically and mechanically lowered. It faces the attack side A, i.e. it is usually arranged towards the outside of the building.

This first lowering seal D1 has the housing rail 1 and the sealing strip 3 'held therein such that it can be lowered and raised. It has the support rail 35 'and an elastomeric sealing profile with a first side wall 30', a second side wall 33 'and a lower base 31' connecting the two side walls 30 ', 33'.

An elastic safety strip 7 is held in the door leaf F behind this first lowering seal D1. It is preferably fastened to the door leaf F by means of a fastening bracket 72. The distance to the floor or to the threshold 6 can be set by means of spacer elements 73. The spacer element 73 is preferably a washer or a washer. The use of spacer elements 73 enables a simple height adjustment, although large forces can be absorbed. Other types of height adjustment are also possible, in particular stepless height adjustment.

The elastic securing strip 7 extends like the first and the second lowering seal D1, D2 described below, preferably over the entire width of the door leaf F and thereby defines a longitudinal direction. The cross section of the elastic safety strip 7 and preferably also of the first and second lowering seals D1, D2 is preferably approximately constant over their entire length.

The elastic fuse strip 7 preferably has a rectangular cross section at least in its lower region. At least one lower area of the elastic securing strip 7 facing the threshold 6 is designed to be elastically deformable. Preferably, at least this area consists of an elastically deformable plastic, for example a foam or rubber.

The elastic fuse strip 7 preferably has a rigid base body 70, preferably made of metal or a hard plastic. The fastening bracket 72 can be connected to this base body 70. The lower area in the form of an escape body 71 is arranged on the base body 70. It is preferably molded on. However, it can also be connected to it in other ways. In Figure 10 the avoidance body 71 has a downwardly open U-shaped cross section. It is held in a groove in the base body 70 and protrudes from it on the lower end face. In the embodiment according to Figure 11 it is cuboid and fastened or molded onto the lower end face of the base body 70.

Depending on the embodiment, the evasive body 71 has a flat lower end face or it is itself provided with depressions and / or elevations. It preferably ends at a small distance from the threshold, so that it does not contact the threshold or the floor when the door leaf F is opened and closed. However, the gap between the evasive body 71 and the threshold 6 is preferably so small that a break-in tool cannot be pushed through the gap without deforming the evasive body 71.

In one embodiment, the deflecting body 71 extends in one piece over the entire length of the elastic securing strip 7. In other embodiments, the deflecting body 71 comprises a plurality of partial bodies 710 which are joined together in the longitudinal direction but are independent of one another. This is shown in FIG Figure 12 recognizable.

Behind the elastic fuse strip 7 is already based on Figure 9 Fuse strip described with the elastic sealing profile 3 is arranged. Reference is made to the description there. It forms the second drop-down seal D2.

The threshold 6 preferably extends at least over the distance from the first lowering seal D1 to the second lowering seal D2. It can be designed in one piece or in several pieces in its surface over this area. In these examples it is made in one piece. It is preferably connected to a base body 6 'and rests on it. The base body 6 'is preferably attached to the building floor.

Below the second drop-down seal D2 is already based Figure 9 described increase 64 of the threshold 6 available. In the area of the first lowering seal D1 and the soft, elastic safety strip 7, it is preferably designed to be flat. However, it can also have elevations and / or steps and / or depressions in this area.

If an intruder tries to push a goat's foot under the door leaf, he may be able to push the first drop-down seal upwards and thus create a passage.

The goat's foot or another break-in tool may possibly subsequently get under the elastic safety strip 7. However, the burglary tool cannot permanently deform the fuse strip. If the avoidance body 71 consists of a plurality of subsections loosely lined up one behind the other, this does not succeed even with two tools introduced next to one another. This prevents the view of the following, second drop-down seal D2. In addition, no leverage can be applied to the second drop-down seal D2. This protection is further enhanced by the fact that the second drop-down seal has the defensive element in the form of the extension 32.

The devices according to Figures 10 and 11 thus offer the combination of a double seal, thanks to the two drop-down seals D1 and D2, and optimal burglary protection, whereby the burglar protection can definitely meet the requirements of the standardized resistance class RC3 or a higher resistance class.

The elastic fuse strip can preferably also be combined with other fuse strips, in particular with the fuse strips according to FIGS Figures 1 to 8d .

The burglar protection device according to the invention enables optimal burglary protection, even when using a goat foot or a wire loop as a burglary tool. REFERENCE LIST 1 Housing rail 7th elastic fuse strip 10 mounting brackets 70 Base body 71 Evasive body 2 Release button 710 Partial body 72 mounting brackets 3 Fuse strip 73 Spacer element 3 ' Sealing strip 30, 30 ' second side wall 800 simple locking support 31, 31 ' lower bottom 801 Swivel arm 32 Appendix / rib 802 Contact area 33, 33 ' first side wall 803 Recess 34 second leg of the second angle profile 804 Control pin 805 Swivel axis 35, 35 ' Support rail 806 Locking pin 810 toothed locking support 5 Spacers 811 Swivel arm 812 Contact area 400 Lowering bar 813 Gear rim 401 Recess 814 upper rack 815 tooth 5 Height adjustment element 816 Swivel axis 820 double-toothed locking support 6th speed bump 6 ' Base body 821 Swivel arm 60 Support surface 822 lower gear 61 Edge 823 upper tooth ring 62 Bevel 824 upper rack 63 outer threshold area 825 tooth 64 increase 826 Swivel axis 65 second support surface 827 lower rack 900 Lowering mechanism 910 Leaf spring 920 Mounting block 930 Operating rod 940 Bearing block A. Attack side I. Non-attack side F. Door leaf G Geissfuss L. Longitudinal direction D1 first drop-down seal D2 second drop-down seal

Claims (20)

Burglar protection device for a door, the burglar protection device having a safety strip (3) for arrangement on or in a door leaf (F) of the door and for closing a gap between the door leaf (F) and a door underside (6), the safety strip (3) can be moved from a raised position to a securing position in which it closes the gap when the door is closed, characterized in that the securing strip (3) has a defensive element (32, 31, 33), the shape of which engages under the securing strip (3) and prevents penetration between the fuse strip (3) and the underside of the door (6). Burglar protection device according to claim 1, wherein the security bar (3) has an extension (32) which extends obliquely downward at least in the security position, the extension being arranged at a lower end of the security bar (3) extending in a longitudinal direction, the extension (32) protrudes at least in the securing position of the remaining securing strip (3) in a transverse direction running transversely to the longitudinal direction and prevents reaching under and penetration. Burglar protection device according to one of claims 1 or 2, wherein the securing strip (3) has a lower base (31) which runs horizontally at least in the secured position and is directed downward, the lower base (31) extending approximately over the in a longitudinal direction entire length of the fuse strip (3) extends. Burglar protection device according to claim 3, wherein the lower base (31) has an underside and wherein a spacer (5) is arranged on the underside. Burglar protection device according to one of Claims 3 or 4, the extension (32) being arranged on the lower base (31). Burglar protection device according to claim 5, wherein the extension is a sloping downwardly running rib (32) which extends over the entire length of the lower base (31), the rib (32) at one end of the longitudinal direction (L) lower floor (31) is arranged and wherein the rib (32) extends from the end of the lower floor (31) from the lower floor (31) obliquely downward and forms an extension of the lower floor (31) in the horizontal direction. Burglar protection device according to one of Claims 5 or 6, the lower base (31) and the extension (32) being formed together in one piece. Burglar protection device according to one of claims 3 to 7, wherein the security strip (3) has a first side wall (33), wherein the first side wall (33) extends upwards over the lower floor (31) and wherein the lower floor (31) and the first side wall (33) are formed separately from one another. Burglar protection device according to claim 8, wherein the security strip (3) has a first angle profile, wherein the first side wall (33) forms a first leg of the first angle profile and wherein a second leg (34) of the first angle profile is approximately parallel above and adjacent to the lower floor ( 31) runs. Burglar protection device according to one of claims 1 to 9, wherein the security strip (3) has a second side wall (30), the second side wall (30) being connected to the lower floor (31) and they together form a second angle profile. Burglar protection device according to one of Claims 1 to 10, the fuse strip (3) being held in a housing rail (1) so that it can be raised and lowered. Burglar protection device according to claim 11, wherein it is a mechanical Has lowering mechanism (900) for lowering and raising the safety bar and that the burglar protection device also has a mechanical actuating element (2) which can be activated automatically when the door is closed and which acts on the lowering mechanism (900). Burglar protection device according to one of Claims 1 to 12, the fuse strip (3) being rigid. Burglar protection device according to one of Claims 1 to 12, the security strip (3) having a sealing profile and being at least partially made of a flexible material. Burglar protection device according to one of claims 1 to 14, wherein it further comprises a threshold (6), wherein the safety strip (3) in the secured position closes the gap between the threshold (6) and the door leaf (F) and wherein the threshold (6) has at least one step (61, 64). Burglar protection device for a door, the burglar protection device having a safety strip (7) for arrangement on or in a door leaf (F) of the door and for at least partially closing a gap between the door leaf (F) and a door underside (6), characterized in that the fuse strip (7) has an elastic deflecting body (71) which, after elastic deformation, assumes its original shape again. Burglar protection device according to claim 16, wherein the elastic evasive body (71) extends at least approximately over the entire length of the device. Burglar protection device according to one of claims 16 or 17, wherein the evasive body (71) consists of a plurality of partial bodies which are arranged next to and adjacent to one another along the length of the device. Burglar protection unit with a burglar protection device according to one of the Claims 1 to 15 in combination with a burglar protection device according to one of Claims 16 to 18. Burglar protection unit according to claim 19, wherein the burglar protection device according to one of claims 16 to 18 is arranged in front of the burglar protection device according to one of claims 1 to 15 in the direction of attack.

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