(11) EP 1 734 490 B1


(45) Mention of the grant of the patent:
01.12.2010 Bulletin 2010/48

(21) Application number: 06405250.9

(22) Date of filing: 06.06.2006
(51) International Patent Classification (IPC): 
G08B 13/12(2006.01)
G08B 13/16(2006.01)


Dismountable anti-intrusion device for enclosures

Demontierbare Einbruchsicherungseinrichtung für Einzäunungen

Dispositif anti-intrusion démontable pour enceintes

(84) Designated Contracting States:

(30) Priority: 08.06.2005 CH 9782005

(43) Date of publication of application:
20.12.2006 Bulletin 2006/51

(73) Proprietor: F.lli Albertolli S.A.
6807 Taverne (CH)

(72) Inventor:
  • Albertolli, Daniele
    6929 Gravesano (CH)

(74) Representative: Fiammenghi-Domenighetti, Delfina 
Fiammenghi-Fiammenghi Via San Gottardo 15
6900 Lugano
6900 Lugano (CH)

(56) References cited: : 
DE-A1- 3 641 327
GB-A- 2 033 122
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).


    [0001] The present invention relates to the sector of anti-intrusion devices and, more particularly, to the sector relating to anti-intrusion devices installed along enclosures such as meshwork fences and the like.
    At present the most widely known devices of this type emit an alarm signal when they detect an intrusion which results in the interruption of one or more wires of a current-conveying electric circuit suitably arranged along the said enclosure (in the case of metal meshwork fences the meshes themselves may be used as conductors to form the abovementioned circuit). The main disadvantage of this type of anti-intrusion device consists in the fact that it may be easily breached by specialists who are able to create bridges or bypasses at the point where they intend to cut the enclosure, so as to maintain the continuity of the circuit even when its conductors have been cut. Alternatively there exist fixed installations which create a rigid and impenetrable cage around the building to be protected, which, if touched, transmits the contact pulse to sensors which, however, take into account only certain well-defined predetermined frequencies. The limitation of these installations consists in the total lack of flexibility and extendibility, being designed from a conceptual point of view to be fixed, irremovable and without the possibility of adjustment.

    [0002] Installations of this type are known from GB-2 033 122 and DE-3 641 327.

    [0003] The inventor of the present patent application has thought to provide a highly flexible system which does not damage the wall on which it is installed when removed or repositioned and which can also be easily adjusted in terms of its dimensions and extension. Owing to these characteristic features of being modular and flexible in terms of use, the present device may be readily extended when there is a change in requirements of the location to be protected, preventing an intruder who intends breaching the enclosure by cutting it or passing over it, from being able to penetrate inside it unnoticed. The intruder must, in fact, necessarily make contact physically with the enclosure according to the present patent application in order to overcome it, exerting on it a force which, even though minimal, is nevertheless sufficient to cause it to vibrate with oscillations having an amplitude and frequency dependent on the characteristics of the physical parameters at play.
    The present patent application therefore intends describing an anti-intrusion device which is efficient, highly flexible, dismountable and easily adjustable according to the changes in requirements. Said system ensures a removable and adjustable enclosure, on which an apparatus with a sensitivity able to detect vibrations even with a minimum amplitude may be installed, detecting the abovementioned oscillations immediately and emitting a consequent alarm signal, sending it via radio or by similar means to whoever is monitoring the enclosure.

    [0004] The device according to the present invention is formed so as to be able to be simply incorporated in the concrete support kerb on which the said enclosure is fixed in an entirely removable manner, using simple fixing screws which allow the installation of the system without further additional building work. The present method therefore allows the removal or the disassembly of the entire enclosure, without having to act on in any way or damage the concrete support. By means of the locating member 10 containing adjusting screws situated at the base of the removable post 3, it is also possible to adjust suitably the vertical position of the said removable support post, so as to functionally adapt it for correct installation of the anti-intrusion meshwork. This possibility of adjusting the post also speeds up considerably the installation of the said meshwork. The present system is provided with a housing which, in addition to containing the alarm apparatus with the associated vibration sensors, terminates at the top in a vertical tubular element inside which a removable support post of the enclosure may be inserted and which is positioned so as to be integral, directly or indirectly, with the said sensors and, generally, with the part of the apparatus containing them. The entire assembly, in order to meet changing requirements, is therefore able to be easily dismounted by simply removing the support post from the housing without damaging in any way either the support part of the kerb or the meshwork itself.
    The device according to the invention, if applied to each removable support post of an enclosure, forms an unbreachable protective barrier: moreover, even if somebody should attempt to remove or neutralise the device, the said sensors of the already described apparatus would detect this immediately, neutralising the attempted intrusion.

    [0005] The object of the present invention therefore consists in a removable and adjustable device for detecting and signalling attempts at breaching any continuous enclosure in accordance with that described in the accompanying Claim 1. The external structure of the support post may have any desired height, shape and form, ensuring broad and specific flexibility of use.
    A detailed description of a preferred example of embodiment of the device according to the present invention will now be provided, with reference also to the accompanying drawings in which:
    • Figure 1 is a longitudinal cross-section through the said example of embodiment of the device according to the invention applied to a concrete support kerb;
    • Figure 2 is a perspective view of the device alone according to Figure 1;
    • Figure 3 is an illustration of the rapid engagement system, showing the removable support post 3 ready for insertion inside the housing 6 which contains the detection apparatus 5;
    • Figure 4 is a longitudinally sectioned view in which the removable support post 3 completely inserted inside the housing 6 can be seen;
    • Figure 5 is a longitudinally sectioned illustration of the lateral movement which the removable support post 3 manages to perform owing to the action of the locating member 10 containing at least two base adjusters.

    [0006] If we consider Figure 1, in this figure it can be seen how a device 1 according to the present invention is applied to a continuous removable enclosure 2 fixed onto removable support posts 3 secured to a concrete support kerb 4.
    As shown in the Figure, the device 1 may be "embedded" for the most part in the concrete of the kerb 4, being incorporated therein during casting, or may be simply fixed to the latter using any known technique, also employing, to ensure correct positioning thereof, a locating member 10 which has at least two adjusters and is rested horizontally against the upper side 4s of the kerb 4. Said locating member 10 has two or more common adjusters which allow the inclination of the support post 3 to be modified, as shown in Figure 5.

    [0007] The device 1 is provided with a housing 6 which accommodates internally an apparatus 5 which detects the vibrations of the enclosure 2 by means of one or more sensors 8 integral therewith.
    This housing 6 extends upwards in the form of a tubular element 7 with a vertical axis T-T, designed so as to contain internally, without play, the bottom end 3i of a removable support post 3 of the enclosure 2 (only schematically shown in the drawing) positioned so as to be directly or indirectly in contact with the abovementioned one or more sensors 8. In the example shown, the contact is indirect and is performed by means of a push-rod 9 which is integral with the apparatus 5 and is kept, using known methods (resilient parts, springs, etc.), in contact with the said bottom end 3i of the support post 3. In the case in question, this push-rod 9 penetrates inside a recess 11 formed in the abovementioned bottom end 3i and also acts as a stopping and locking member.

    [0008] Figure 2 show the same device according to Figure 1, not yet applied to an enclosure.

    [0009] The different features and their component parts have been indicated using the same reference numbers as in Figure 1, for which reason the description provided hitherto may be applied without variation also to Figure 2.

    [0010] Any vibration affecting the enclosure 2 and consequently the removable post 3 and its bottom end 3i is detected (if necessary by means of an amplification system of the known type) and signalled to the person or to the organisation responsible for monitoring the enclosure.

    [0011] This signalling operation may be performed preferably via radio or by means of analog signals conveyed by a suitable circuit which reaches all the devices arranged along the enclosure. The housing 6 may be inserted inside a masonry support or fixed to the latter using ordinary securing means so that it may subsequently be easily removed after the alarm system has been deactivated.

    [0012] An anti-intrusion device which cannot be breached, is dismountable, is adjustable as regards its inclination and is easy to apply is thus provided, thereby achieving the predefined object of the inventor.


    1. Device (1) for detecting and signalling attempts at breaching a continuously inclinable enclosure (2) fixed onto removable support posts (3) secured to a concrete support kerb (4), characterized in that it comprises:

    a) an apparatus (5) able to detect and signal by means of one or more sensors (8) the vibrations which are transmitted to it by a body with which the said sensors (8) are in contact;

    b) a housing (6) containing the said apparatus (5) and terminating towards the top in a tubular element (7) with a vertical axis (T-T) able to contain internally without play the bottom end (3i) of a removable support post (3), the inclination of which may be adjusted owing to a locating member (10) containing at least two adjusters capable of modifying the inclination of the removable support post (3), the removable support post (3) being arranged so as to be in contact directly or indirectly with at least one sensor (8) of the said apparatus (5), said housing (6) and the associated tubular element (7) being incorporated in or simply fixed to the concrete of said kerb (4) with the opening of the housing (6) directed upwards.

    2. Device according to Claim 1, in which the said bottom end (3i) of the removable support post (3) connected thereto can be easily removed and, when inserted completely inside the tubular element (7), is in contact with a push-rod (9) which is arranged inside the apparatus (5) which detects and signals the vibrations and which is integral therewith, the push-rod (9) performing the contact between said one or more sensors (8) and said bottom end (3i) of said removable support post (3).


    1. Vorrichtung (1) zum Detektieren und Melden von Versuchen des Durchbrechens einer kontinuierlich neigbaren Umschließung (2), die an entnehmbaren Tragstützen (3) befestigt ist, die an einem Beton-Haltebegrenzungsstein (4) befestigt sind, dadurch gekennzeichnet, dass sie umfasst:

    (a) eine Einrichtung (5), die mittels eines oder mehrerer Sensoren (8) die Schwingungen, die an sie von einem Körper übertragen werden, mit dem die Sensoren (8) in Kontakt sind, detektieren und melden kann;

    (b) ein Gehäuse (6), das die Einrichtung (5) enthält und an der Oberseite in einem rohrförmigen Element (7) endet, das eine vertikale Achse (T-T) besitzt und innen ohne Spiel das untere Ende (3i) einer entnehmbaren Tragstütze (3) enthalten kann, deren Neigung mittels eines Lokalisierungselements (10) eingestellt werden kann, das wenigstens zwei Einsteller aufweist, die die Neigung der entnehmbaren Haltestütze (3) verändern kann, wobei die entnehmbare Haltestütze (3) dazu ausgelegt ist, dass sie mit wenigstens einem Sensor (8) der Vorrichtung (5) direkt oder indirekt in Kontakt gelangen kann, wobei das Gehäuse (6) und das zugehörige rohrförmige Element (7) in den Beton des Begrenzungssteins (4) eingebaut oder einfach daran befestigt ist, wobei die Öffnung des Gehäuses (6) nach oben weist.

    2. Vorrichtung nach Anspruch 1, wobei das untere Ende (3i) der entnehmbaren Tragstütze (3), das mit ihr verbunden ist, einfach entfernt werden kann und, wenn es vollständig in das rohrförmige Element (7) eingesetzt ist, mit einer Schubstange (9) in Kontakt ist, die in der Einrichtung (5) angeordnet ist, die die Schwingungen detektiert und meldet und die einteilig damit ausgebildet ist, wobei die Schubstange (9) den Kontakt zwischen dem einen oder den mehreren Sensoren (8) und dem unteren Ende (3i) der entnehmbaren Tragstütze (3) herstellt.


    1. Dispositif (1) pour détecter et signaler des tentatives de forcement d'une enceinte (2) apte à être inclinée de manière continue qui est fixée sur des poteaux amovibles (3) fixés à une bordure de support en béton (4), caractérisé en ce qu'il comprend :

    a) un appareil (5) apte à détecter et à signaler à l'aide d'un ou plusieurs capteurs (8) les vibrations qui lui sont transmises par un corps avec lequel lesdits capteurs (8) sont en contact ;

    b) un boîtier (6) qui contient l'appareil (5) et qui se termine en direction du haut par un élément tubulaire (7) présentant un axe vertical (T-T) et apte à contenir sans jeu l'extrémité inférieure (3i) d'un poteau amovible (3) dont l'inclinaison peut être réglée grâce à un élément de positionnement (10) contenant au moins deux éléments de réglage aptes à modifier l'inclinaison du poteau amovible (3), ledit poteau amovible (3) étant disposé de manière à être en contact direct ou indirect avec au moins un capteur (8) de l'appareil (5), le boîtier (6) et l'élément tubulaire (7) associé étant intégrés dans le béton de la bordure (4) ou simplement fixés à celui-ci avec l'ouverture du boîtier (6) dirigée vers le haut.

    2. Dispositif selon la revendication 1, dans lequel l'extrémité inférieure (3i) du poteau amovible (3) reliée au dispositif peut être facilement enlevée et, quand elle est complètement introduite dans l'élément tubulaire (7), est en contact avec une tige-poussoir (9) qui est disposée à l'intérieur de l'appareil (5) qui détecte et signale les vibrations, et qui est formée d'une seule pièce avec celui-ci, la tige-poussoir (9) réalisant le contact entre le ou les capteurs (8) et l'extrémité inférieure (3i) du poteau amovible (3).


    Cited references


    This list of references cited by the applicant is for the reader's convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard.

    Patent documents cited in the description