EP0260330A1 - Protection antivol pour objets - Google Patents

Protection antivol pour objets Download PDF

Info

Publication number
EP0260330A1
EP0260330A1 EP86112698A EP86112698A EP0260330A1 EP 0260330 A1 EP0260330 A1 EP 0260330A1 EP 86112698 A EP86112698 A EP 86112698A EP 86112698 A EP86112698 A EP 86112698A EP 0260330 A1 EP0260330 A1 EP 0260330A1
Authority
EP
European Patent Office
Prior art keywords
electrical
film
theft device
conductors
bridge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP86112698A
Other languages
German (de)
English (en)
Inventor
Armin Bonack
Friedrich Karl Fey
Horst D. Wilde
Wilhelm Jank
Karl Schneider
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tele-Security-Foto Ueberwachungsanlagen GmbH
Wilde Membran Impuls Technik GmbH
Original Assignee
Tele-Security-Foto Ueberwachungsanlagen GmbH
Wilde Membran Impuls Technik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tele-Security-Foto Ueberwachungsanlagen GmbH, Wilde Membran Impuls Technik GmbH filed Critical Tele-Security-Foto Ueberwachungsanlagen GmbH
Priority to EP86112698A priority Critical patent/EP0260330A1/fr
Publication of EP0260330A1 publication Critical patent/EP0260330A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/14—Mechanical actuation by lifting or attempted removal of hand-portable articles
    • G08B13/1445—Mechanical actuation by lifting or attempted removal of hand-portable articles with detection of interference with a cable tethering an article, e.g. alarm activated by detecting detachment of article, breaking or stretching of cable

Definitions

  • the invention relates to an anti-theft device according to the preamble of patent claims 1 and 2.
  • the invention has for its object to provide an anti-theft device of the type mentioned that does not require an electrical switch, has a simple structure and is therefore extremely inexpensive and adheres better to the objects to be protected.
  • a component should have a low overall height and a low weight.
  • the electrical organ that is attached to the objects is a flexible film part that is simply glued on. If an illegal attempt is made to detach the film part from the object, the carrier film tears, as a result of which the conductor track or bridge attached to it is interrupted, so that no quiescent current can flow through the two connected conductors. This is recognized by the monitoring device, which then generates an alarm.
  • Adhesive films that cannot be removed non-destructively are known. Such an adhesive film is offered, for example, by Fasson, Dortmund, under the name "FasCal 2920". The strength of this film is less than the adhesive strength of its adhesive layer, so that the film tears when attempting to detach it from the object.
  • Another possibility is to use a film with pre-made predetermined tear lines.
  • the quiescent current through the conductor tracks is interrupted by the tearing of the film.
  • the electrical element contains a bridge which is formed between two carrier films by two contact elements, each of which is connected to one of the carrier films. In the idle state, both contact elements abut one another, so that a current flow through the bridge is possible. If an attempt is made to detach the electrical element consisting of a foil package from the object to be secured, then the contact elements forming the bridge are separated from one another at least for a short time, and the current interruption caused by this is recognized by the monitoring device. In the second variant of the invention, it is not necessary for a film to tear when the electrical organ is removed from the secured object. Therefore, the electrical organ can be reused after being detached from the object by being glued to another object, only the adhesive layer possibly having to be renewed. On the other hand, according to the second variant, the electrical element can also be designed such that it is destroyed by the object to be secured when it is removed by authorized or unauthorized persons.
  • an important advantage of the invention is that the electrical element consisting of a film part has a simple structure, a low weight and an extremely small volume.
  • the electrical organ can be manufactured at a low cost and thus used as a disposable part that is discarded after one use, e.g. when the item to be protected is sold and the anti-theft device is removed.
  • the invention also has the advantage that the electrical element is flexible and can also be glued to uneven surfaces, e.g. on curves.
  • the cover film which is glued or welded to the top of the carrier film, also consists of a slightly tearing material, so that the composite film of carrier film and cover film cannot be detached from the object without being destroyed.
  • the conductors with which the electrical organ is connected to the monitoring device consist of conductor tracks which are arranged on a film strip.
  • an electrical flat cable is produced, which is produced at low cost, simply by printing a conductive paste onto the film strip.
  • the electrical contacts between the conductor tracks of the film strip and the conductor tracks of the carrier film are expediently carried out with the features of claim 4.
  • the conductor tracks to be connected are between two films of the composite materials pressed together so that no soldering is required and electrical contact terminals are not required.
  • the film strip is an integral part of a film of the electrical organ. It therefore forms an integral extension of the electrical organ, which eliminates the need to connect the electrical organ to the electrical conductors.
  • a carrier film or a cover film which covers the conductor tracks from the outside is preferably opaque, so that the course of the conductor tracks and the current bridge cannot be recognized from the outside.
  • the anti-theft device shown has an electrical element 10 which contains a carrier film 11 made of non-conductive plastic. On the carrier film 11, three conductor tracks 12, 13, 14 are attached, which are printed, for example, with conductive paste.
  • the figures 2 and 3 show the foils and conductor tracks only schematically, but do not represent a scale illustration. Both the foils and the conductor tracks are much thinner than shown in the drawing.
  • the carrier film 11 has on its underside facing away from the conductor tracks 12, 13, 14 an adhesive layer 15 with which it can be attached to the object to be protected.
  • the upper side of the carrier film 10 is covered with the cover film 16, which has an adhesive layer 17 on its underside and corresponds exactly in shape and size to the carrier film 11.
  • the opaque cover film 16 covers the carrier film including the conductor tracks 12, 13, 14.
  • the three conductor tracks 12, 13, 14 run parallel to one another and at short intervals.
  • the two outer conductor tracks 12 and 14 are connected to one another by a current bridge 18, which also consists of a conductor track.
  • the current bridge 18 extends to the vicinity of the parallel side edges of the foils 11, 16 and to the vicinity of the edge opposite the connection area. In this way it is achieved that in an attempt to detach the electrical element 10 from its edge from the object, the current bridge 18 is very soon interrupted.
  • the electrical organ is connected to the monitoring device (not shown) by means of a film strip 19, one end of which is glued between the films 11 and 16.
  • the film strip 19 carries three longitudinal conductors 20, 21, 22, which are printed, for example, on its underside. As shown in FIG. 2, the conductors 20, 21, 22 are congruent in the connection area with the conductor tracks 12, 13, 14, so that in the connection area the conductor tracks 12 and 20, the conductor tracks 13 and 21 and the conductor tracks 14 and 22 are in direct contact with each other and make electrical contact.
  • the end of the film strip 19 covers only a small part of the carrier film 11. In this overlap area, the film strip 19 adheres to the adhesive layer 17 of the cover film 16.
  • a tab 23 is attached, the contacts of which are connected to the conductors 20, 21 and 22 and which is connected to the monitoring device.
  • Figs. 2 and 3 the different foils are shown with mutual spacings in order to clarify the structure of the electrical organ 10. In reality, the foils are laid flat on top of one another to form a composite foil.
  • the monitoring device sends a quiescent current through the conductors 20 and 22, which are connected to one another by the current bridge 18. If the current bridge 18 is interrupted when trying to remove the organ 10 from the object to be protected, the quiescent current can no longer flow, which is detected by the monitoring device. The monitoring device then issues an alarm.
  • the middle conductor 21 connected to the conductor track 13 serves to detect a short circuit of this conductor with one of the conductors 20 or 22. If a thief tries to short-circuit the outer conductors 20 and 22 in order to subsequently remove the electrical member 10 unnoticed, this is detected via the conductor 21.
  • FIGS. 4 and 5 largely correspond to the first embodiment, so that the following explanation can be limited to the differences.
  • the conductor track 13 has a wider conductor layer 13 a in the area enclosed by the bridge 18, the edge of which has a relatively small, substantially constant distance from the bridge 18. This ensures that any attempt at external influence on the electrical member 10 with electrically conductive parts causes the conductor surface 13a to come into contact with the bridge 18.
  • Another difference from the first exemplary embodiment is that the conductors 20, 22 run on one side of the film strip 19, while the third conductor 21, which is likewise designed as a conductor track, is arranged on the opposite side of the film strip.
  • the third conductor 21 has a width such that it extends over the two conductors 20, 22 located on the other side.
  • the ends 21a and 21b of the third conductor 21 are tapered and passed through the film strip 19 so that they are arranged on the same side of this film strip as the conductors 20, 22.
  • two carrier foils 30 and 31 are provided, which are connected peripherally along their seam along a seam 32, e.g. are firmly welded or glued.
  • the carrier foils 30, 31 form a round electrical organ.
  • the carrier foils 31 and 30 form a pocket and the cavity 35 enclosed by them contains two contact elements 36, 37.
  • the contact element 36 consists of a thin metal layer which is fastened on the inside of the lower carrier foil 30 and the contact element 37 also consists of a thin one Metal layer which is attached to the inside of the upper carrier film 31.
  • Both contact elements 36 and 37 are in electrical contact with one another when the carrier foils are folded flat.
  • the areas of the contact elements are relatively small in relation to the areas of the carrier foils.
  • the contact elements 36 and 37 are located in the central region of the electrical organ 10, that is to say they are at a distance from the connecting seam 32.
  • a conductor 38 or 39 extends laterally out of the foil package 30, 31 through the connecting seam 32.
  • the conductors 38 and 39 are separated from one another by an insulating layer 40.
  • the insulating layer 40 forms a film strip 19 on the outside of the electrical organ 10, on which the strips designed as conductor tracks Conductors 38 and 39 either run on the same side or on different sides. The associated third conductor is not shown for reasons of clarity.
  • the insulating film 40 extends up to one of the contact elements, so that normally no direct electrical contact can occur between the conductors 38 and 39.
  • the loosely opposed contact elements 36 and 37 form a bridge which is normally closed, that is to say when the electrical member 10 is glued flat onto the object 34, so that the electrical conductors 38 and 39 are connected to one another via the contact elements 36 and 37.
  • the adhesive film 33 has an area 42 delimited by a line of weakness 41 below the contact elements 36 and 37.
  • the adhesive film 33 need not extend over the entire underside of the carrier film 30. It is only important that the area of the carrier film 30 which is exactly under the contact element 36 is held on the object.
  • the contact elements 36 and 37 have contact surfaces of different sizes in order to compensate for manufacturing tolerances and to create a contact area which is as small as possible and which interrupts the electrical current when there is the slightest attempt to detach the film from the object.
  • the area 44 of the lower carrier film 30, on which the contact element 36 lies can be delimited from the rest of the carrier film 30 by a weakening line 45, so that the area 44 of the carrier film 30 together with the area 42 of the adhesive film 33 and together with the In any case, contact element 36 remains on object 34 when electrical element 10 is removed from the object.
  • the contact bridge 36, 37 is of course opened.
EP86112698A 1986-09-13 1986-09-13 Protection antivol pour objets Withdrawn EP0260330A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP86112698A EP0260330A1 (fr) 1986-09-13 1986-09-13 Protection antivol pour objets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP86112698A EP0260330A1 (fr) 1986-09-13 1986-09-13 Protection antivol pour objets

Publications (1)

Publication Number Publication Date
EP0260330A1 true EP0260330A1 (fr) 1988-03-23

Family

ID=8195413

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86112698A Withdrawn EP0260330A1 (fr) 1986-09-13 1986-09-13 Protection antivol pour objets

Country Status (1)

Country Link
EP (1) EP0260330A1 (fr)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2639743A1 (fr) * 1988-11-25 1990-06-01 Gall Rita Dispositif anti-vol a plaquer sur surfaces lisses et rigides par ventouse
GB2256958A (en) * 1991-06-21 1992-12-23 Gore & Ass Security enclosures
WO1994014142A1 (fr) * 1992-12-08 1994-06-23 David Lussey Detecteur d'intervention non autorisee
DE4310809A1 (de) * 1993-04-02 1994-10-06 Sel Alcatel Ag Meldeeinrichtung für eine Warensicherungseinrichtung
NL9301305A (nl) * 1993-07-23 1995-02-16 Tech Bureau Van Der Arend Behe Werkwijze voor het van een beveiligingslus voorzien van een te beveiligen voorwerp.
DE4438091A1 (de) * 1993-10-26 1995-04-27 Alps Electric Co Ltd Diebstahl-Schutzeinrichtung
EP0663656A1 (fr) * 1994-01-18 1995-07-19 OTT, Reinhold Capteur de surveillance
GB2287339A (en) * 1994-03-08 1995-09-13 Ies Integrated Electronic Syst Security sensors
WO1996007996A2 (fr) * 1994-09-05 1996-03-14 Permasign Limited Dispositif de securite
DE19512567C1 (de) * 1995-04-04 1996-07-11 Reinhold Ott Diebstahlsicherungsvorrichtung
WO1996031852A1 (fr) * 1995-04-04 1996-10-10 Reinhold Ott Dispositif antivol
FR2752636A1 (fr) * 1996-08-23 1998-02-27 Saaa Systemes D Automatismes D Dispositif de protection antivol
US5910768A (en) * 1995-04-04 1999-06-08 Ott; Reinhold Anti-theft device
DE10210299A1 (de) * 2002-03-08 2003-10-02 Reinhold Ott Sensorelement für eine Überwachungsvorrichtung
US7186356B2 (en) 2001-06-07 2007-03-06 Peratech Ltd. Analytical device
EP2083412A1 (fr) * 2008-01-25 2009-07-29 SmTAG international AG Dispositif de surveillance
US10713910B2 (en) 2013-10-30 2020-07-14 Invue Security Products Inc. Flexible sensor for a portable electronic device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000488A (en) * 1974-04-19 1976-12-28 Bernard Ephraim Label alarm system
GB1475006A (en) * 1975-12-02 1977-06-01 Carrick Smith A Anti-theft device
FR2405526A1 (fr) * 1977-10-07 1979-05-04 Etelac Procede et dispositif de protection d'objets et materiels
DE3223882A1 (de) * 1982-06-26 1983-12-29 Nicolaj 2000 Hamburg Swirin Etikett zur sicherung von in verkaufsraeumen, ausstellungen u.dgl. ausgelegten gegenstaenden gegen unrechtmaessiges entwenden

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000488A (en) * 1974-04-19 1976-12-28 Bernard Ephraim Label alarm system
GB1475006A (en) * 1975-12-02 1977-06-01 Carrick Smith A Anti-theft device
FR2405526A1 (fr) * 1977-10-07 1979-05-04 Etelac Procede et dispositif de protection d'objets et materiels
DE3223882A1 (de) * 1982-06-26 1983-12-29 Nicolaj 2000 Hamburg Swirin Etikett zur sicherung von in verkaufsraeumen, ausstellungen u.dgl. ausgelegten gegenstaenden gegen unrechtmaessiges entwenden

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2639743A1 (fr) * 1988-11-25 1990-06-01 Gall Rita Dispositif anti-vol a plaquer sur surfaces lisses et rigides par ventouse
GB2256958A (en) * 1991-06-21 1992-12-23 Gore & Ass Security enclosures
GB2256958B (en) * 1991-06-21 1994-11-16 Gore & Ass Improvements in security enclosures
WO1994014142A1 (fr) * 1992-12-08 1994-06-23 David Lussey Detecteur d'intervention non autorisee
DE4310809A1 (de) * 1993-04-02 1994-10-06 Sel Alcatel Ag Meldeeinrichtung für eine Warensicherungseinrichtung
NL9301305A (nl) * 1993-07-23 1995-02-16 Tech Bureau Van Der Arend Behe Werkwijze voor het van een beveiligingslus voorzien van een te beveiligen voorwerp.
DE4438091A1 (de) * 1993-10-26 1995-04-27 Alps Electric Co Ltd Diebstahl-Schutzeinrichtung
EP0663656A1 (fr) * 1994-01-18 1995-07-19 OTT, Reinhold Capteur de surveillance
US5574430A (en) * 1994-01-18 1996-11-12 Reinhold Ott Monitoring sensor
GB2287339A (en) * 1994-03-08 1995-09-13 Ies Integrated Electronic Syst Security sensors
WO1996007996A3 (fr) * 1994-09-05 1996-05-30 Permasign Ltd Dispositif de securite
WO1996007996A2 (fr) * 1994-09-05 1996-03-14 Permasign Limited Dispositif de securite
US5644295A (en) * 1994-09-05 1997-07-01 Permasign Limited Security device
DE19512567C1 (de) * 1995-04-04 1996-07-11 Reinhold Ott Diebstahlsicherungsvorrichtung
WO1996031852A1 (fr) * 1995-04-04 1996-10-10 Reinhold Ott Dispositif antivol
US5910768A (en) * 1995-04-04 1999-06-08 Ott; Reinhold Anti-theft device
FR2752636A1 (fr) * 1996-08-23 1998-02-27 Saaa Systemes D Automatismes D Dispositif de protection antivol
US7186356B2 (en) 2001-06-07 2007-03-06 Peratech Ltd. Analytical device
DE10210299A1 (de) * 2002-03-08 2003-10-02 Reinhold Ott Sensorelement für eine Überwachungsvorrichtung
US7079031B2 (en) 2002-03-08 2006-07-18 Reinhold Ott Sensor element for a monitoring device
EP2083412A1 (fr) * 2008-01-25 2009-07-29 SmTAG international AG Dispositif de surveillance
US10713910B2 (en) 2013-10-30 2020-07-14 Invue Security Products Inc. Flexible sensor for a portable electronic device

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Inventor name: WILDE, HORST D.

Inventor name: BONACK, ARMIN

Inventor name: FEY, FRIEDRICH KARL

Inventor name: JANK, WILHELM