AT14869U1 - Intrusion detection system - Google Patents

Abstract

An object of the subject invention is to realize an anti-burglary protection system which does not automatically or accidentally locked when closing the window or door leaf (8), inexpensive retrofit, easy to use and lockable for additional protection. The invention therefore relates to an anti-burglar alarm system for blocking or releasing the opening movement of a window or door leaf (8) which can be tilted and / or pivoted on a window or door frame (9), with one on a window or door frame (10) of the window - Or door (8) fastened locking element (1), as well as one on the window or door frame (9) arranged retaining element (2), wherein the blocking element (1) can be brought into a release position or a blocking position to the release or blockage effect, wherein a spring element (3) is provided, which exerts a force on the locking element (1) in the direction of the release position.

Description

description

BURGLAR PROTECTION SYSTEM FIELD OF THE INVENTION

The present invention relates to an anti-burglar alarm system for blocking or releasing the opening movement of a tiltable on a window or door frame and / or pivotally arranged window or door leaf, with a fixed to a window or door frame of the window or door wing blocking element, and a retaining element arranged on the window or door frame, wherein the blocking element can be brought into a release position or a blocking position to effect the release or blockage.

STATE OF THE ART

Burglar alarm systems for windows or doors are available in various designs. Some of these systems are already integrated in the windows or doors during manufacture, others can be retrofitted to already installed windows or doors.

The operation of such burglar alarm systems can be very different. For example, systems are available which use a movable, anchored next to the window or door frame locking element, and prevent the opening movement of the window or the door. Although such systems are inexpensive, but are usually easy to overcome and prevent tilting of the window or the door with activated burglar protection function completely. In addition, there is a risk that the door or window frame is damaged in contact with the locking element.

From AT 513699 B1, a system is known which makes it possible to maintain the tilting function of the windows and doors despite the protective device being activated. In addition, this device aims to be retrofittable, as easy to use, and to be automatically activated when closing the window or door leaf.

However, especially the automatic activation of the burglar alarm system when closing the (window or) door leaf is often problematic in practice, since the door (or window) is locked immediately, as soon as a certain spacing to the (window or) door frame below. This can lead to unintentional Selbstaussperren the user from a house or apartment, which in the repeated case can be associated with considerable costs.

OBJECT OF THE INVENTION

Therefore, it is an object of the subject invention to realize a burglar alarm system, which does not automatically or accidentally locked when closing the door or window sash, inexpensive retrofit, easy to use and lockable for additional protection.

PRESENTATION OF THE INVENTION

This is according to the invention in a burglar alarm system for blocking or releasing the opening movement of a window or door frame tiltable and / or pivotally mounted window or door leaf, with a fixed to a window or door frame of the window or door wing blocking element, and a retaining element arranged on the window or door frame, wherein the blocking element can be brought into a release position or a blocking position to effect the release or blockage, achieved by providing a spring element which exerts a force on the blocking element in the direction of the release position , By the spring element, the blocking element is basically held in the release position, in which it releases the opening movement of the window or door leaf.

A preferred embodiment of the device according to the invention provides a fixing element and / or a locking element in order to block the blocking element in the blocking position. If the blocking element has been brought into the blocking position, it must be blocked there in order to prevent it being forced back into the release position by the spring element. This can be achieved by the fixing element and / or the locking element. As will be explained further below, the use of each of these elements (or both together) brings with it special advantages.

According to a further preferred embodiment of the burglar alarm system according to the invention, it is provided that the blocking element is substantially L-shaped and comprises a first leg and a second leg, wherein the first leg is arranged projecting in the direction of an interior and forms an actuating portion , And the second leg is arranged to extend parallel to the door or window frame. Such an embodiment of the blocking element is favorable because it saves space on the one hand and on the other hand simplifies subsequent assembly. In this way, it is also ensured that the first leg of the locking element is easy to grip and therefore easy to operate.

According to a further preferred embodiment of the burglar alarm system according to the invention, it is provided that the retaining element is attached to a horizontally extending floor portion of the window or door frame and mounted the locking element on a corresponding portion to this frame portion of the door or window frame in a frame is, wherein the blocking element is slidably disposed from the release position to the blocking position. By this arrangement of locking and retaining element, it is possible to make their meshing in the blocking position simple and stable. In addition, the arrangement on the respective lower frame or floor section, especially in doors, inconspicuous. Also, the frame leading the blocking element - as well as the retaining element - basically anywhere easily (and subsequently) attachable.

According to another preferred embodiment of the burglar alarm system according to the invention, it is provided that the spring element is integrated into the frame. As a result, the power transmission to the held in the guide blocking element can be done in a simple manner. In addition, frame and spring element are available as a set later.

A further preferred embodiment of the burglar alarm system according to the invention provides that between the blocking element in the blocking position and the overlying frame a space for receiving the fixing element is formed to block the blocking element in the blocking position. By inserting the matched in terms of its dimensions fixing into the space prevents the locking element can be brought back into the release position.

A further preferred embodiment of the burglar alarm system according to the invention provides that the retaining element is formed inwardly projecting in the direction of the window or door and has a stop with which the blocking element is in blockage position in contact. By this stop the blocking element is prevented in blocking position from completing the opening movement of the open-wanting window or door leaf.

A further preferred embodiment of the burglar alarm system according to the invention provides that the dimensions of the free space are so matched to the dimensions of the fixing, that the height of a remaining with inserted fixing free space is less than the height of the stop of the retaining element. This ensures that the blocking element blocked by the fixing element does not have enough play to release the opening movement of the window or door leaf.

[0015] According to another preferred embodiment of the burglary

Securing system is provided that the first leg of the locking element is provided with a first bore and the fixing element with a second bore. These holes offer the possibility to connect the first leg of the locking element (by means of a suitable securing element) stationary with the fixing element.

A further preferred embodiment of the burglar alarm system according to the invention provides that the fixing element can be inserted into the free space such that the first bore is arranged in alignment with the second bore. This makes it possible to connect the blocking element in blockade position stationary with the inserted into the free space fixing.

A particularly preferred embodiment of the burglar alarm system according to the invention provides that a securing element, preferably in the form of a padlock, is provided, which can be carried out through the first bore of the first leg of the blocking element in the blocking position and through the second bore of the inserted into the free space fixing element is to prevent slipping or removing the fixing from the free space. This ensures that the fixing element - even with tilted door or window sash - can not slip out of the free space. A security element in the form of a padlock has the additional advantage that it represents an additional obstacle even in the case of a broken window, the removal of which costs time.

A further preferred embodiment of the burglar alarm system according to the invention provides that the locking element is biased by spring force against the locking element. As a result, the locking element exerts a force on the blocking element and is thus in principle suitable for fixing the blocking element in a specific position.

According to another preferred embodiment of the burglar alarm system according to the invention, it is provided that the locking element is held in the frame. While the securing of the separate fixing element by a (lockable) security element is particularly suitable for a long-term burglar alarm, offers a variant of the burglar alarm system with integrated locking comfortable protection for everyday use, but is not lockable.

According to another preferred embodiment of the burglar alarm system according to the invention, a retaining notch is provided on the blocking element to fix the blocking element by latching of the locking element in the retaining notch in the blocking position. This makes it - with a suitable locking force of the locking element - despite the locking element in the release position pushing spring force possible to fix the locking element without the inserted into the free space fixing in the blocking position.

According to a further preferred embodiment of the burglar alarm system according to the invention it is provided that the locking element by means of an actuating element either in a locking position in which it can engage in the retaining notch, or in a rest position can be brought, in which it has no contact with the blocking element , Thus, the locking function can optionally be switched on or off.

When the locking function is activated, the blocking element is blocked by the locking element in the blocking position as soon as it reaches this position. This blockage can be solved either manually by the blocking element is brought back by actuation section back to the release position, or by switching off the locking function by means of actuating element, whereby the blocking element is urged by the spring element back into the release position.

However, it is also possible to block the blocked by the locking element in the blocking position blocking element by inserting the fixing in the space and security by means of padlock in addition to obstruct.

[0024] According to another preferred embodiment of the anti-theft system according to the invention, it is provided that the retaining element has a receptacle in order to be able to receive another securing element. Although this recording does not affect the functionality of the retaining element itself, but provides an additional means of protection against unauthorized intrusion into the interior.

According to a further preferred embodiment of the burglar alarm system according to the invention it is provided that the other securing element, preferably another padlock, is feasible by the inclusion in order to block the opening movement of the window or door leaf.

Such a performance of the other padlock by the inclusion of the retaining element in itself already constitutes a method to block the opening movement of the window or door leaf - even if the blocking element is not (more) in blocking position.

In accordance with the invention use of the fixing or use of the locking element for the blockage of the blocking element in the blocking position is carried out by the recording other security element is a means of additional protection and offers an intruder - even with the window pane - another obstacle whose removal Time costs.

BRIEF DESCRIPTION OF THE FIGURES

The invention will now be explained in more detail with reference to several embodiments. The drawings are exemplary and are intended to illustrate the inventive idea, but in no way restrict it or even reproduce it.

1 a shows a sectional view of an anti-burglar alarm system according to the invention with closed window / door leaf and blocking element in blockage position along the section line AA from FIG. 6b. FIG. 1b the sectional view from FIG. 1a with tilted window. [0030] FIG Fig. 2 shows a sectional view of an anti-burglar alarm system according to the invention with closed window / door leaf and blocking element in the release position along the section line BB from Fig. 6a. Fig. 3 shows a sectional view of an anti-burglar alarm system according to the invention with closed window / door leaf and blocking element in blocking position along the section line AA of FIG. 6b FIG. 4 shows an anti-burglary protection system according to the invention as shown in FIG. 3, but additionally with inserted fixing element and aligned bores FIG. 5 shows an anti-burglary protection system according to the invention as shown in FIG. but additionally with fuse in the form of a padlock Fig. 6a shows a view of the guide of the burglary protection system according to the invention together with the blocking element in the release position, according to the section line CC from Fig. 2. Fig. 6b shows a view of the guide of the burglary protection system according to the invention as in Fig. 6a, but with the blocking element in the blocking position FIG. 7a is a view of the guide of a second embodiment with Arretierele element of the burglar alarm system according to the invention together with blocking element in the release position, according to the section line CC of Fig. 2 Fig. 7b is a view of 7a, but with the blocking element in blocking position and inserted fixing element FIG. 8a is a sectional view along the section line AA of FIG. 6b of a third embodiment variant of the burglarproof system according to the invention with accommodation in the retaining element 8b shows a sectional view along the section line A-A from FIG. 6b of a third embodiment variant of the burglar alarm system according to the invention with accommodation in the retaining element and securing element in the form of a padlock

WAYS OF CARRYING OUT THE INVENTION FIRST EMBODIMENT

Fig. 1a shows a sectional view of a window or a patio door in the closed state, consisting of a window or door leaf 8 (comprising a door or window frame 10 in which a glass pane 11 is inserted) and a window or door 9th including activated burglar alarm system.

Basically, it should be noted at this point that it may be in the windows or doors mentioned in the present invention either those whose wings can be rotated only about a vertical axis, or to turn-tilt windows or can act around doors whose wings are rotatable about both a vertical and a horizontal axis. It is referred to as the "opening" the rotation of the door or window sash 8 to the vertical and as "tilting" the rotation of the door or window sash 8 about the horizontal axis.

At the interior 13 facing sides of the door or window frame 10 and the window or door frame 9, the burglar alarm system is attached.

The burglar alarm system comprises in the illustrated embodiment, a blocking element 1 and a retaining element 2, wherein in the embodiment shown, both elements attached to lower horizontally extending frame and floor sections 14 and 15 of the door or window frame 10 and the door or window frame 9 are. However, it would also be conceivable that they are attached to corresponding portions of the vertically extending of the door or window frame 10 and the door or window stock 9.

The blocking element 1 can basically occupy two positions. In a blocking position, a part of the blocking element 1 is in direct contact with a stop 5 of the retaining element 2, whereby an opening movement of the window or door leaf 8 is blocked. In a release position (see FIG. 2), however, the blocking element 1 is in contact with a frame 19.

Fig. 1b shows a sectional view of a window or a patio door in the tilted state with activated burglar alarm system. In this case, the door or window frame 10 together with the glass pane 11 is tilted at an angle 12 from its position in the closed state in the direction of the interior 13. By the selected in the embodiment shown form of the retaining element 2, it is possible to ensure the blockage position even in the tilted state of the window or door leaf 8. At this point, reference is again made to the already mentioned AT 513.699 B1, which discusses various locking and retaining elements which are suitable for blocking the opening movement of tilted window and door leaves. In the present embodiment, however, a shape of the locking 1 and retaining element 2 would be conceivable, which does not allow to tilt the window or door 8 in the locked state.

Fig. 2 shows the lower horizontally extending door or window frame portion 14 mounted locking element 1 in the release position. In this position, the blocking element 1 is not in contact with the retaining element 2 and thus does not hinder the opening movement of the window or door leaf 8.

In contrast, in Fig. 3, the blocking element 1 is in the blocking position. This position is achieved by moving the blocking element 1 out of the release position along the lower door or window frame section 14 in the direction of the retaining element 2 (displacement direction 6). It stands with the window closed or with the door directly with the stop 5 of the retaining element 2 in contact and thereby blocks the opening movement of the window or door leaf. 8

4 shows a fixing element 4, which is inserted into a free space 20 (see FIG. 3) along an insertion direction 21, which is normal to the displacement direction 6 of the blocking element 1. The inserted fixing element 4 has a second bore 23 which is arranged in alignment with a first bore 22 in a first leg 16 of the locking element 1 and allows the fixing element 4 by means of a suitable securing element 7 (see FIG. 5) with the first leg 16 of the retaining element 1 to connect stationary.

Fig. 5 shows, in addition to all elements contained in Fig. 4, the securing element 7 in the form of a padlock 24th

Fig. 6a shows a locking element 1 movably holding frame 19 together with a located in the interior of the frame 19 guide 18 in a sectional view along the section line CC of Fig. 2. A spring element 3 is fixedly connected to the frame 19 and presses one second leg 17 of the locking element 1, which is in the release position, upwards. Between the second leg 17 of the blocking element 1 and a lower portion of the frame 19, the retaining element 2 extends together with stop 5.

Fig. 6b shows the same elements as Fig. 6a, wherein the locking element 1 is now in the blocking position, but is not blocked by the inserted into the free space 20 fixing member 4 in the blocking position.

FUNCTIONING OF THE INVENTION ACCORDING TO FIRST EMBODIMENT

In a closed state of the window or door leaf 8, the blocking element 1 is initially in the release position, since it is pushed upwards by the spring element 3 (see FIG 2). In this position, the opening movement of the window or door leaf 8 is released. The closing of an open or tilted window or door leaf 8 is possible at any time and does not automatically lead to the blockage of the opening movement of the window or door leaf. 8

The mounted in the guide 18 spring element 3 exerts a force on the locking element 1, specifically on the second leg 17 of the locking element 1, from, whereby this is held in the release position. In order to move the blocking element 1 along the displacement direction 6 from the release position to the blocking position, deformation work on the spring 3 must be performed. In other words, the blocking element 1 must be pushed against the spring force of the spring element 3 in the blocking position (see Fig. 1 and 3). This can be done in a particularly user-friendly manner by means of its first leg 16, which forms an actuating section.

In order to prevent the blocking element 1, which has now been brought into the blocking position, is moved by the spring element 3 back into the release position, the blocking of the blocking element 1 is required. This can be achieved by inserting the fixing element 4 in the space 20. This fixing element 4 is inserted so far along the insertion direction 21 in the space 20 between the locking element 1 and frame 19 until it is present at the lower door or window frame portion 14, and thus blocks the blocking element 1 in the blocking position.

In this case, the height of the fixing element 4 may meaningfully correspond substantially to the height of the free space 20 (see FIG. 6b), but at least its height and the height of the free space 20 must be selected such that the height of a fixing element 4 is inserted remaining clearance 29 (see Fig. 7b) is less than the height of the Rückhalteelemen-tes (2). This ensures that the blocking element 1 can be brought into a position in which it can overcome the retaining element 2 when the fixing element 4 is inserted into the free space 20. The width of the fixing element 4 basically does not matter, but for the sake of simplicity it may correspond to that of the first leg 16 of the blocking element 1.

The blocking of a pivoting movement of the window or door leaf 8 when opening now comes about by the fact that in blocking position located blocking element 1 is in contact with the stop 5 of the retaining element 2 and thereby prevented from the pivoting movement with the open wool window or door 8 with accomplish.

On the detailed geometric shape of the locking element 1, as well as the retaining element 2, this is not important, as long as it is ensured that the two can be brought into a position relative to each other, in which they block each other. The easiest way to achieve a mutual blockage by the blocking element 1, which is brought into contact with a stop 5 of the retaining element 2 (see Retaining element in Fig. 1a). In this case, the area of the retaining element 2 is referred to as a stop 5, which comes into contact with the blocking element 1 in the blocking position. This type of blockade has the advantage that it is not absolutely necessary that the blocking element 1 is arranged at a certain angle relative to the retaining element 2. An equally conceivable embodiment of the burglar alarm system, on the other hand, would be one in which a part of the blocking element 1 is sunk in an opening in the retaining element 2 in order to block it. Then, the position which the blocking element 1 can assume relative to the retaining element 2 would depend on the width and height of the opening and the penetration depth of the blocking element 1 into the opening.

If the blockage position can be maintained, even though the door or window sash 8 is in the tilted position, it is ensured that the pivoting movement continues to be prevented. In a particularly simple manner, this retention of the blockage position is ensured when both the locking 1 and the retaining element 2 are immovably attached to the door or window frame 10 or to the window or door frame 9. For the opening movement of the window or door leaf 8, however, it is essential to be able to solve the blockage position. It therefore makes sense to mount only one of the two elements (in this case, the blocking element 1) in its position variable and to equip the device therefor with the fixing element 4, which fixes the blocking element 1 in the blocking position.

So it is - with a suitable design of locking 1 and retaining element 2 - even in the tilted state of the window or door leaf 8 possible that the in contact with the stop 5 of the retaining element 2 located blocking element 1 in the blocking position a pivoting movement a vertical axis inclined by the tilting angle 12 (see Fig. 1b) is prevented when the locking member 1 is blocked by the fixing member 4 in the blocking position.

In this case, a possible slipping out of the fixing element 4 in the direction of the inner space 13 can be prevented by a suitable securing element 7. The securing element 7 is thereby performed by an aligned with a second bore 23 first bore 22 and through the second bore 23, whereby the arrangement of fixing element 4 and first leg 16 of the locking element 1 is permanently fixed to each other permanently. In this way, the slipping out of the fixing element 4 from the free space 20 can be prevented even with tilted window or door leaf 8.

To the safety of burglar alarm system, especially in the case of tilted

Window and door wings 8, in addition to increase, it is advisable to use a lockable securing element 7, preferably the padlock 24.

In order to remove the blockade, it is necessary to remove the securing element 7 and remove the fixing element 4 from the free space 20, whereupon the spring element 3 moves the second leg 17 of the blocking element 1 and thus the entire blocking element 1 back into the release position.

SECOND EMBODIMENT

Fig. 7a shows a sectional view along the section line C-C of Fig. 2 of the locking element 1 movably holding frame 19 of a second embodiment of the device according to the invention. The spring element 3 is fixedly connected to the guide 18 and the locking element 1 is in the release position. A locking member 25 is brought by an actuator 28 in the locking position and presses under spring force (spring not shown) against a side surface 27 of the locking element 1, but is not engaged in a retaining notch 26 in the side surface 27.

Fig. 7b shows the same elements as Fig. 7a, wherein the blocking element 1 is now in the blocking position. Consequently, the spring element 3 is in a compressed state. The locking element 25 is in the locking position and is locked in the retaining notch 26 and thus fixes the locking element 1 in the blocking position.

FUNCTIONING OF THE INVENTION ACCORDING TO SECOND EMBODIMENT

The embodiment variant of the burglar alarm system according to the invention shown in Figures 7a and 7b, in addition to the spring element 3, the locking member 25 in the locking position, which has the purpose to fix the locking element 1, specifically the second leg 17, in the blocking position, as soon as he is in this. In addition, the actuating element 28, which is designed in the concrete embodiment as a lever, shown. This lever serves to bring the locking element 25 either in the locking position, in which it can engage in the retaining notch 26, or in a rest position, in which it has no contact with the blocking element 1.

In the release position of the blocking element 1, the locking element 25 exerts a force in the locking position on the blocking element 1, specifically on the side surface 27 of its second leg 17, from. However, this locking force acts normally on the displacement direction. 6

As soon as the blocking element 1 has been brought into the blocking position, the locking element 25, whose end facing the blocking element 1 is convexly rounded, locks in the retaining notch 26 and fixes the blocking element 1 in the blocking position in this way.

The retaining notch 26 is expediently arranged on the locking surface 25 facing side surface 27 of the locking element 1 and is formed such that it can receive the locking element 1 opposite end of the locking element 25. In the embodiment shown in Fig. 7a and 7b, the retaining groove 26 is concave.

This locking of the blocking element 1 in the blocking position can be terminated by a manual return of the blocking element 1 in the release position. In this case, sufficient force must be expended to move the locking member 25 out of the retaining notch 26 against a run-on slope.

It is also possible to cancel the locking of the locking element 1 in the blocking position by actuating the mounted on the frame 19 of the guide 18 actuating element 28, specifically by operating the lever. As a result, the locking element 25 is moved from the locking position into a rest position in which it is no longer in contact with the blocking element 1. Thus, the lever is used to turn on and off the locking function.

THIRD VERSION OF OPTION

Fig. 8a shows a third embodiment of the burglar alarm system according to the invention, which is characterized in that the retaining element 2 is provided with a receptacle 30. The blocking element 1 is in the blocking position - however, this variant also provides protection when the blocking element 1 has been moved out of the blocking position. Therefore, the blocking element 1 is shown schematically in this illustration also in the release position.

In addition to all the elements shown in FIG. 8a, FIG. 8b shows another securing element 31, specifically another padlock 32, which is performed by the receptacle 30.

FUNCTIONING OF THE INVENTION ACCORDING TO THIRD EMBODIMENT

In addition to all measures provided in the previous design variants for blocking the opening movement of the window or door leaf 8, the embodiment shown in FIGS. 8 a and 8 b provides for the use of another securing element 31. In the specific embodiment, this other fuse element 31 is realized by another padlock 32, although other implementations are conceivable. The burglar alarm system according to the third variant of the invention functions as follows: The blocking element 1 is basically in the release position since it is held in this position by the spring element 3. In order to activate the anti-burglary protection system, the blocking element 1 (with the window or door 8 closed) must be brought into the blocking position and blocked in this. For this purpose, either the fixing element 4 can be optionally inserted into the free space 20, or the locking element 25 described above can be brought into the locking position.

Now blocks the blocking element 1 in conjunction with the retaining element 2 any opening movement of the window or door leaf 8. To maintain this blockade permanently (even with tilted window or door leaf 8) and safely up, the fuse element 7 is provided which can be performed by the inserted into the free space 20 fixing element 4, as well as by the blocking element 1 itself, and so the slipping out or removing the fixing element 4 from the space 20 is prevented.

For additional protection against unauthorized intrusion into the interior 13, this third embodiment provides for the other securing element 31, which can be passed through the receptacle 30 of the retaining element 2. If an intruder now succeeds in bringing the blocking element 1 out of the blocking position into the release position, then the opening movement of the window or door leaf 8 is still blocked by the frame 19 surrounding the retaining element 2 and fastened to the door or window frame 10 the other securing element 31 is blocked and thus an opening movement of the window or door leaf 8 is prevented. Only after the intruder has removed this fuse element, he can open the window or door 8.

REFERENCE LIST 1 Blocking element 2 Retaining element 3 Spring element 4 Fixing element 5 Stop 6 Displacement 7 Securing element 8 Window or door leaf 9 Window or door frame 10 Door or window frame of window or door leaf 8 11 Glass pane of window or door leaf 8 12 Tilt angle 13 Interior 14 Horizontal Door or window frame portion 15 horizontal window or door frame portion 16 first leg 17 second leg 18 guide 19 frame 20 space 21 insertion direction 22 first bore 23 second bore 24 padlock 25 locking member 26 retaining notch 27 side surface 28 actuator 29 remaining space 30 receptacle 31 other fuse element 32 other padlock

Claims (17)

claims 1. Burglar alarm system for blocking or releasing the opening movement of a window or door frame (9) tiltable and / or pivotally arranged window o the door leaf (8), with a window or door frame (10) of the window or door leaf (8) fastened locking element (1), as well as a on the window or door frame (9) arranged retaining element (2), wherein the blocking element (1) can be brought into a release position or a blocking position to effect the release or blockage , characterized in that a spring element (3) is provided, which exerts a force on the blocking element (1) in the direction of the release position. 2. Burglar alarm system according to claim 1, characterized in that a fixing element (4) and / or a locking element (25) is provided to block the blocking element (1) in the blocking position. 3. burglar alarm system according to claim 1 or 2, characterized in that the blocking element (1) is formed substantially L-shaped and comprises a first leg (16) and a second leg (17), wherein the first leg (16) in the direction an inner space (13) is arranged projecting and an actuating portion is formed, and the second leg (17) parallel to the door or window frame (10) is arranged to extend. 4. burglar alarm system according to one of claims 1 to 3, characterized in that the retaining element (2) on a horizontally extending floor portion (15) of the window or door frame (9) is fixed and the blocking element (1) at a corresponding to this section Frame portion (14) of the door or window frame (10) in a frame (19) is mounted guided, wherein the blocking element (1) from the release position to the blocking position is slidably disposed. 5. burglar alarm system according to claim 4, characterized in that the spring element (3) in the frame (19) is integrated. 6. burglar alarm system according to claim 4 or 5, characterized in that between the blocking element (1) in the blocking position and the overlying frame (19) has a free space (20) for receiving the fixing element (4) to the blocking element (1) to block in the blockage position. 7. burglar alarm system according to one of claims 1 to 6, characterized in that the retaining element (2) inwardly projecting in the direction of window or door (8) and a stop (5), with which the blocking element (1) is in blockade position in contact. 8. burglar alarm system according to claim 7, characterized in that the dimensions of the free space (20) are so matched to the dimensions of the fixing element (4) that the height of a in-set fixing element (4) remaining free space (29) is less than that Height of the stop (5) of the retaining element (2). 9. burglar alarm system according to one of claims 3 to 8, characterized in that the first leg (16) of the blocking element (1) with a first bore (22) and the fixing element (4) with a second bore (23) is provided. 10. burglar alarm system according to claim 9, characterized in that the fixing element (4) in such a way in the free space (20) can be inserted, that the first bore (22) with the second bore (23) is arranged in alignment. 11. burglar alarm system according to claim 10, characterized in that a securing element (7), preferably in the form of a padlock (24) is provided, which through the first bore (22) of the first leg (16) of the blocking element (1) in the blocking position and by the second bore (23) of the in the free space (20) inserted fixing element (4) can be performed to prevent slipping out or removal of the fixing element (4) from the free space (20). 12. burglar alarm system according to one of claims 2 to 11, characterized in that the locking element (25) is biased by spring force against the blocking element (1). 13. burglar alarm system according to one of claims 2 to 12, characterized in that the locking element (25) is held in the frame (19). 14. burglar alarm system according to one of claims 2 to 13, characterized in that on the blocking element (1) has a retaining notch (26) is provided to the locking element (1) by engagement of the locking element (25) in the retaining notch (26) in the Fix blockage position. 15. burglar alarm system according to claim 14, characterized in that the locking element (25) by means of an actuating element (28) either in a locking position in which it can engage in the retaining notch (26), or in a rest position can be brought, in which there is no Contact with the blocking element (1) has. 16. Burglar alarm system according to one of the preceding claims, characterized in that the retaining element (2) has a receptacle (30) to accommodate another securing element (31) can. 17. Burglar alarm system according to claim 16, characterized in that the other securing element (31), preferably another padlock (32), through the receptacle (30) is feasible to block the opening movement of the window or door leaf (8). For this 8 sheets of drawings