EP0506784B1 - Siegel zur feststellung des zugangs zu einem gegenstand - Google Patents

Siegel zur feststellung des zugangs zu einem gegenstand Download PDF

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Publication number
EP0506784B1
EP0506784B1 EP19910901608 EP91901608A EP0506784B1 EP 0506784 B1 EP0506784 B1 EP 0506784B1 EP 19910901608 EP19910901608 EP 19910901608 EP 91901608 A EP91901608 A EP 91901608A EP 0506784 B1 EP0506784 B1 EP 0506784B1
Authority
EP
European Patent Office
Prior art keywords
seal
envelope
seal according
towards
configuration
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.)
Expired - Lifetime
Application number
EP19910901608
Other languages
English (en)
French (fr)
Other versions
EP0506784A1 (de
Inventor
Emile Droche
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT91901608T priority Critical patent/ATE101937T1/de
Publication of EP0506784A1 publication Critical patent/EP0506784A1/de
Application granted granted Critical
Publication of EP0506784B1 publication Critical patent/EP0506784B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F3/03—Forms or constructions of security seals
    • G09F3/0305—Forms or constructions of security seals characterised by the type of seal used
    • G09F3/0317—Forms or constructions of security seals characterised by the type of seal used having bolt like sealing means
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F3/03—Forms or constructions of security seals
    • G09F3/0305—Forms or constructions of security seals characterised by the type of seal used
    • G09F3/0341—Forms or constructions of security seals characterised by the type of seal used having label sealing means

Definitions

  • the invention relates to a seal intended to detect access to an object or a relative movement between several juxtaposed objects.
  • the document FR-A-1,213,931 also discloses such an envelope further presenting well-localized initiations of rupture.
  • document US-A-3 935 960 discloses a sealing film for a container, the handling of which is demonstrated by its color change.
  • the film includes cells filled with a liquid chemically reacting with the film when, after handling, the cells have been ruptured.
  • the problem which the invention aims to solve is therefore to propose a seal which can be easily brought to the object and which, moreover, applies intimately to it.
  • the invention relates to a seal intended to detect access to an object or a relative movement between several juxtaposed objects, consisting of an envelope arranged to cover at least a part of said object (s) and having zones of weakness such that an attempt to manipulate this seal produces its rupture, characterized in that the envelope is of such a material and has dimensions such that it is capable of being expanded, from '' a dimensionally stable configuration, towards a dimensionally unstable configuration in which it has determined dimensions, greater than those of said parts of the object to be covered, so that it can be brought around said parts while leaving a clearance between it and these parts, then retract towards said stable configuration in which it is applied by force to said parts, the fragility of said zones of weakness being increased by the retraction.
  • the envelope in its dimensionally unstable configuration, has dimensions which are greater than those of the object, which facilitates its positioning. Once returned to its dimensionally stable configuration, it applies intimately to the object. This return to the stable configuration is moreover used to increase the fragility of the zones of weakness, since it causes stresses in the envelope.
  • the envelope is made of a heat-shrinkable material, and it optionally includes a product capable of reacting exothermically.
  • the envelope is made of an elastic material and the seal includes means arranged to maintain the envelope in its dimensionally unstable configuration, these means being able to be removed to allow it to retract towards its stable configuration.
  • the zones of weakness result from the presence of recesses in the envelope, which delimit envelope regions of small width.
  • the zones of weakness result from the presence of recesses in the envelope, which delimit envelope regions of small width.
  • the envelope comprises a central region disposed between two terminal regions, said recesses being located in the central region and delimiting several strips each connecting the two terminal regions.
  • the seal includes regions of initiation of rupture, the presence of which increases the embrittlement of the envelope.
  • each strip is connected to the terminal regions by a portion of reduced section.
  • Another problem which the invention aims to solve is to be able to detect the unauthorized removal of a seal.
  • the seal comprises means arranged to leave a mark on the object after its removal.
  • said means comprise a product contained in the seal and capable of marking the object.
  • said means comprise an adhesive interposed between the seal and the object.
  • Another problem which the invention aims to solve is, in the case of the recovery of objects capable of being moved in one of two opposite directions, to detect fraudulent manipulation both in one direction and in the other.
  • each strip is connected to one of the end regions by a portion of reduced section arranged near a first edge of the strip, and it is connected to the other end region by a portion of reduced section arranged near a second edge of the strip opposite the first.
  • the invention also relates to a method for applying the aforementioned seal, consisting in bringing the previously expanded seal to its dimensionally unstable configuration, around said parts of the object to be covered, causing the seal to retract to its stable configuration, and subjecting said audit sealed, after retraction, a treatment designed to increase the fragility of said zones of weakness.
  • This process contributes even more to obtain a seal which is especially fragile once assembled, and which therefore has an even greater resistance before assembly, for its manufacture and its installation.
  • the seal shown in Figures 1 to 4 is a dimensional recovery sleeve which comprises two rings 2,3 having the same axis 5 and spaced from each other, which are connected together by a plurality of bands or straps 4 extending parallel to axis 5 and distributed around it.
  • Each strap 4 extends in width over a portion of the periphery of the sleeve and has two ends by which it is connected respectively to two edges 6,7 of the rings, turned towards one another.
  • a slot 10,11 partially separates the strap from the edge 6,7 of the adjacent ring.
  • the slot 10 extends from a first edge 12 of the strap towards the inside of the latter, over a distance corresponding to a half-width of the strap.
  • the other slot 11 extends from a second edge 13 of the strap towards the inside thereof, over the same distance as the slot 10.
  • the thickness of the article with dimensional recovery is small so that it is fragile and significant lesions appear at the slightest attempt to set in motion one of the pieces of the fitting relative to the other, or access to the protected object.
  • the presence of an adhesive is not obligatory but further amplifies the extent of the destruction of the object with thermal recovery.
  • the materials used for the heat recovery objects will preferably be polymers (polyolefins - modified or not -, PA, PVC) and may be crosslinked.
  • Thermal recovery can be obtained by heating by hot air, flame or immersion in a liquid at the appropriate temperature.
  • the heat source can also be incorporated into the polymer used for the manufacture of the object with thermal recovery, for example in the form of a product distributed on the external face of the object and reacting exothermically with water.
  • FIG. 3 illustrates a use of the seal according to the invention with a view to detecting an unauthorized disassembly of a connection between two fluid lines 21, 22, one of them being for example directly connected to a reservoir, the connection between the two conduits being produced by means of a nut 23.
  • the sleeve 1 of FIG. 1 Before closing the connector, the sleeve 1 of FIG. 1 is slid over one of the pipes 21, 22. After closure of the connector, the sleeve 1 is disposed opposite it, so that its straps 4 are opposite the nut 23, preferably facing the sides 25, 26 of the nut.
  • the rings 2,3 are preferably retracted first on the pipes 21,22, then that of the straps 4 on the nut 23.
  • the regions of the straps comprising the slots 10, 11 are the seat of particularly high stresses, such as an attempt at unauthorized manipulation of the sleeve or the nut will lead to rapid rupture of the straps 4.
  • the sleeve has a brittleness especially after its retraction, while before it its resistance is sufficient not to tear during the manufacturing process and during assembly.
  • the particular arrangement of the slots 10, 11 on the sleeve promotes the rupture of the straps regardless of the direction in which the nut 23 is rotated and regardless of the direction of mounting of the sleeve thus, when the latter is rotated in the direction of the arrow 24 (FIG. 2), it is the end of the straps 4 carrying the slot 11 which will have the best chance of detaching from the sleeve, because the direction of the force tends to open the breach produced more by the presence of the slot.
  • FIG. 4 Another advantage of the sleeve according to the invention appears in FIG. 4, in the case where the space available on either side of the connector is limited to a length less than that of the sleeve. Due to the presence of the straps 4, the rings 2,3 can be brought closer to each other, which causes the straps to fold back on themselves and therefore a reduction in the length of the sleeve.
  • all kinds of recess shapes may lead to the areas of weakness of the seal being obtained.
  • these recesses may consist of a large number of juxtaposed holes of small dimensions.
  • the recesses will be such that, when viewed in projection in a plane perpendicular to the axis of the sleeve, they produce a reduction in section of the sleeve at least equal to 1% relative to a section of the sleeve which would be devoid of recesses.
  • the reduction in section will be greater than 50%; it reaches 95% in the above example, measured in the region of the straps 4.
  • suspenders are particularly advantageous since these give the seal a fragile appearance which dissuades the unauthorized third party from handling the covered object.
  • the seal according to the invention may have weaknesses resulting, not from the presence of recesses on its surface, but from the very nature of the material constituting the seal or its weakness. thickness.
  • the fragility of the zones of weakness may be increased, after shrinking, by a special treatment (heating, projection of an agent attacking the material, etc.), for example by making the material brittle or weakly resistant to traction.
  • the seal In the case where the seal is intended to be threaded on one end of the object (s), it may take the form of a cap.
  • the seal shown in a variant in FIGS. 5 to 7 is a ring-shaped belt 30 having zones of weakness distributed around the periphery and formed on the one hand by zones of reduced thickness 31, and on the other hand by slots 32.
  • zones of reduced thickness 31, which extend peripherally over a very short length the thickness of the belt 30 is reduced by 60% in this example.
  • the slots 32 extend in this example over 40% of the width of the belt, from any edge thereof towards the inside.
  • the slots 32 are grouped peripherally in pairs, in the sense that each slot extending from one edge of the belt 30 faces another slot extending from the other edge of the belt.
  • the belt 30 has been arranged by dimensional recovery on a box 33 having a cover 34.
  • the box 33 may in particular contain connections between two pipes or cables, or serve to store and transport dangerous or precious substances.
  • the belt 30 is arranged so as to overlap the cover 34. Due to the dimensional recovery, the zones of reduced thickness 31 have been stretched peripherally and the slots 32 have been opened.
  • the first is to interpose an adhesive between the belt and the box.
  • the second consists in using a box 35 having a groove 36 completely surrounding it, arranged to receive the belt 30.
  • an improvement of the invention consists in that the seal leaves traces of its installation on the substrate. , even after its total withdrawal.
  • the effect is obtained by the presence of a substance, at least on the inner face of the seal in contact with the substrate, such that, once the seal has been removed, the parts of the surface of the substrate having been in contact with the seal look different from other parts of the substrate surface.
  • the invention finds its application in particular in the covering of fluid conduit fittings, or of electrical or optical cable fittings, of threaded ends of compressed gas bottles (medical gas for example) and in the covering of boxes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Gasket Seals (AREA)
  • Sealing Material Composition (AREA)

Claims (13)

  1. Siegel zum Feststellen des Zugangs zu einem Gegenstand oder einer Relativbewegung zwischen mehreren nebeneinander angeordneten Gegenständen (21, 22), bestehend aus einer Hülle (1), die wenigstens einen Teil des oder der Gegenstände bedeckt und geschwächte Zonen besitzt, so daß das Siegel bei einem Manipulationsversuch reißt, dadurch gekennzeichnet, daß die Hülle aus einem solchen Wirkstoff besteht und solche Abmessungen besitzt, daß sie aus einer bezüglich der Abmessungen stabilen Konfiguration in eine bezüglich der Abmessungen instabile Konfiguration gedehnt werden kann, in der sie bestimmte Abmessungen besitzt, die größer als die der Teile des zu bedeckenden Gegenstands sind, so daß sie um diese Teile herumgelegt werden kann, indem zwischen ihr und diesen Teilen ein Spiel bestehen bleibt, und sich dann in diese stabile Konfiguration zusammenziehen kann, in der sie auf diese Teile aufgepreßt ist, wobei die Zerreißbarkeit dieser geschwächten Zonen durch das Zusammenziehen erhöht wird.
  2. Siegel nach Anspruch 1, bei dem die Hülle (1) aus einem wärmeschrumpfenden Werkstoff besteht.
  3. Siegel nach Anspruch 2, bei dem die Hülle (1) ein Produkt enthält, das exotherm reagieren kann.
  4. Siegel nach Anspruch 1, bei dem die Hülle (1) aus einem elastischen Werkstoff besteht und das Siegel Mittel umfaßt, die die Hülle (1) in ihrer bezüglich der Abmessungen instabilen Konfiguration halten können und herausgezogen werden können, damit die Hülle sich in ihre stabile Konfiguration zusammenziehen kann.
  5. Siegel nach einem der vorhergehenden Ansprüche, bei dem die Hülle (1) Aussparungen umfaßt, die Hüllenbereiche (4) geringer Breite abgrenzen.
  6. Siegel nach Anspruch 5, bei dem die Hülle einen zwischen zwei Endbereichen (2, 3) angeordneten Mittelbereich besitzt, wobei die Aussparungen im Mittelbereich angeordnet sind und mehrere Bänder (4) abgrenzen, die jeweils die beiden Endbereiche (2, 3) miteinander verbinden.
  7. Siegel nach einem der vorhergehenden Ansprüche, das Anrisse (10, 11; 31, 32) aufweist.
  8. Siegel nach den Ansprüchen 6 und 7 zusammen, bei dem jedes Band (4) mit den Endbereichen (2, 3) durch eine Zone mit vermindertem Querschnitt verbunden ist.
  9. Siegel nach Anspruch 8, bei dem jedes Band (4) mit einem (2) dieser Endbereiche durch eine Zone mit vermindertem Querschnitt verbunden ist, die in Nähe eines ersten Rands (12) des Bandes angeordnet ist, und mit dem anderen Endbereich (3) durch eine Zone mit vermindertem Querschnitt verbunden ist, die in Nähe eines zweiten, dem ersten entgegengesetzten Rands (13) des Bandes angeordnet ist.
  10. Siegel nach einem der vorhergehenden Ansprüche, das Mittel umfaßt, die nach seiner Abnahme auf dem Gegenstand Spuren hinterlassen.
  11. Siegel nach Anspruch 10, bei dem diese Mittel aus einem in dem Siegel enthaltenen Produkt bestehen, das den Gegenstand markieren kann.
  12. Siegel nach Anspruch 10, bei dem diese Mittel aus einem zwischen das Siegel und dem Gegenstand eingebrachten Klebstoff bestehen.
  13. Verfahren zum Aufbringen des Siegels nach einem der vorhergehenden Ansprüche auf den oder die zu bedeckenden Gegenstände, dadurch gekennzeichnet, daß
    - das zuvor in seine bezüglich der Abmessungen instabile Konfiguration gedehnte Siegel um die Teile des oder der zu bedeckenden Gegenstände herumgelegt wird,
    - das Zusammenziehen des Siegels in seine stabile Konfiguration bewirkt wird und
    - das Siegel nach dem Zusammenziehen einer Behandlung unterzogen wird, durch die die Zerreißbarkeit der geschwächten Zonen (4, 10, 11) erhöht wird.
EP19910901608 1989-12-14 1991-07-12 Siegel zur feststellung des zugangs zu einem gegenstand Expired - Lifetime EP0506784B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91901608T ATE101937T1 (de) 1989-12-14 1991-07-12 Siegel zur feststellung des zugangs zu einem gegenstand.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8916539 1989-12-14
FR8916539A FR2656132B1 (fr) 1989-12-14 1989-12-14 Scelle destine a detecter l'acces a un objet ou un mouvement relatif entre plusieurs objets juxtaposes.

Publications (2)

Publication Number Publication Date
EP0506784A1 EP0506784A1 (de) 1992-10-07
EP0506784B1 true EP0506784B1 (de) 1994-02-23

Family

ID=9388499

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910901608 Expired - Lifetime EP0506784B1 (de) 1989-12-14 1991-07-12 Siegel zur feststellung des zugangs zu einem gegenstand

Country Status (5)

Country Link
EP (1) EP0506784B1 (de)
AU (1) AU7031991A (de)
DE (1) DE69006857D1 (de)
FR (1) FR2656132B1 (de)
WO (1) WO1991009393A1 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1213931A (fr) * 1957-11-13 1960-04-05 Fapex Trust Registered Dispositif de capsulage pour fermeture inviolable, particulièrement pour garantir contre la violation de la fermeture de contenants, bouteilles et similaires
US3149869A (en) * 1962-11-21 1964-09-22 Coleman R Chamberlin One-time use plastic lock
US3935960A (en) * 1973-09-17 1976-02-03 Minnesota Mining And Manufacturing Company Tamper indicator tape
US4372593A (en) * 1981-06-17 1983-02-08 Kesselman David A Tamper indicator
MX157606A (es) * 1982-01-19 1988-12-05 Marcelo Chiquiar Arias Mejoras a conjunto de envase y tapa de plastico desechable para productos esteriles medicinales

Also Published As

Publication number Publication date
DE69006857D1 (de) 1994-03-31
WO1991009393A1 (fr) 1991-06-27
AU7031991A (en) 1991-07-18
EP0506784A1 (de) 1992-10-07
FR2656132B1 (fr) 1994-02-04
FR2656132A1 (fr) 1991-06-21

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