Classifications

• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05G—SAFES OR STRONG-ROOMS FOR VALUABLES; BANK PROTECTION DEVICES; SAFETY TRANSACTION PARTITIONS
  • E05G1/00—Safes or strong-rooms for valuables
  • E05G1/14—Safes or strong-rooms for valuables with means for masking or destroying the valuables, e.g. in case of theft

Definitions

• the present invention relates to the field of devices for protection against break-ins or attempted break-ins of a secure container containing valuables and / or valuables.
• the invention relates more particularly to a device combining two principles of value protection, on the one hand by thermal etching and on the other hand by smearing.
• the evoked values and / or valuables consist of at least one base material, most often coated with an outer protective layer, for example in the form of a varnish.
• an outer protective layer makes it possible to ensure the durability of the values and / or documents, in particular by guaranteeing good resistance to water and dirt.
• the values that we seek to protect are fiduciary values (paper money, banknotes) that can be of the "paper”, “polymer” or “hybrid” type, or official documents such as certificates. Their appearance is therefore that of leaves.
• the evoked values consist of a stack of layers: base layer, opacifying layer, security layer, printed ink, etc.
• Other devices use substances that can durably mark the values and / or objects targeted, leaving at least one primary deposit (the substance is absorbed or binds directly to the object, without modification of its nature) or secondary (the substance reacts on contact with the object to be stained, and smearing is done through the product of the reaction). In all cases, it is important that the values and / or objects to be stained have a sufficient capacity for absorption of said smearing substances.
• the protection techniques mentioned earlier are usually used separately, since it is for example not useful to stain burnt and / or fragmented residues.
• a protective layer and / or polymer affects the use of staining substances to protect said values and / or objects.
• said protective layer confers inter alia a smoother finish on the surface of the values and / or objects, as well as, most often, properties of hydrophobicity and / or lipophobicity.
• the smearing substances are less effective, or at least the time required for their satisfactory effect to be lengthened. This is a real disadvantage when one seeks to protect values and / or objects effectively and quickly against external aggression.
• the document is known WO2013127715A2 concerning security documents partially covered with a protective varnish and comprising one or more untreated areas.
• a smearing substance can easily be introduced into the document at the level of the unglazed areas.
• the varnishing step of such documents is complex, which can cause manufacturing defects, and necessarily implies an additional cost to the production.
• the present invention aims to overcome the aforementioned drawbacks by proposing a device associating different means for protecting values and / or valuable objects. These are placed in a container which is then closed. The protection against possible aggressions (attempted break-in, theft) is ensured by the combined action of a smearing substance and a thermal attack.
• the invention thus relates to a device for the protection against theft or attempted theft of valuables and / or valuables, consisting of a container provided with protection means comprising at least one means for thermal attack of said values. and / or objects, at least one maculation means thereof, and at least one means for triggering said thermal etching and staining means capable of initiating a procedure for securing said values and / or objects when an attack of the container is detected, remarkable in that said thermal drive means is capable of generating a reversible alteration of at least one constituent of each of said values by causing an increase in the internal temperature of said container to an attack temperature T is between 50 ° C and 150 ° C, said means for staining being capable of interacting with at least said altered component, said device for the protection of values being set, during its manufacture, in order to better adapt the protection conditions of the values and / or objects to be protected and that its means of protection generate an alteration that preserves the means of identification of said values a posteriori.
• state transition temperature means the temperature from which at least one layer constituting said values and / or objects has its physico-chemical properties (elasticity, permeability, solubility / sensitivity to solvents, etc.) significantly modified. , reversibly, said layer being able to retain its shape, its appearance beyond said state transition temperature in the absence of mechanical stresses and to recover its original properties once the temperature at which it is exposed will be lowered below said state transition temperature.
• the term "irreversible degradation temperature” the temperature from which at least one layer constituting said values and / or objects sees its physico-chemical properties irremediably changed and / or is itself visibly irremediably changed, for example because it is melted, dislocated or calcined and therefore will not regain its original shape and / or properties simply by cooling once the thermal attack is complete.
• Said smearing substance may, depending on the variant used, be independent (means separate from the means dedicated to the thermal attack, and acting simultaneously or not to the latter), or combined with said thermal attack means (single means ensuring the two functions : thermal attack and smearing). In all cases, there is synergy between the two means, the means at the origin of the thermal attack allowing a better marking of the values by the means of maculation.
• the mode of action and / or the course of said thermal attack and / or smearing are provided in such a way as not to cause difficulties in identifying values and / or valuables afterwards when they are found. by the authorities or by their owner, that is to say once the implementation of said means of protection is completed and the values and / or objects are again at room temperature.
• the thermal attack is controlled so as to weaken at least one of the constituent layers of each of the values to be protected.
• the one or more compounds are initially contained in one or more separate tanks, the contents of which are expelled, simultaneously or not, into the container via the triggering means, following the detection of a breaking in.
• the triggering means comprise at least one means for detecting a possible attempted break-in.
• reversible alteration is meant that the values are subjected to a rise in temperature during a given time interval t m during which the properties of at least one of the constituent layers are modified (chemical, mechanical, permeability, intramolecular ...), then during cooling said values resume their initial properties.
• said staining means is chosen so as to avoid or limit its release by the values once these are returned to ambient temperature.
• said maculation means is capable of interacting with at least one constituent material of said values, that is to say that it is capable of penetrating, binding and / or reacting at least in and or with said constituent material.
• said staining means is able to interact with at least the material constitutive altered (with at least the altered layers) of said values, that is to say that it is able to penetrate, bind and / or react at least in and / or with the altered constituent material (s) ( with at least the weathered layer (s)).
• said staining means is able to interact with at least the altered constituent material of said values during the time interval t m .
• a maculation means capable of interacting at any time (before and / or during and / or after the thermal attack occurring during the time interval t m ) with at least one constitutive material (altered or not) of said values is possible.
• Said thermal etching means and said maculation means are selected so as to act synergistically, i.e., the thermal etching facilitates the permeation of the staining means in said altered layer and / or allows the means maculation to cross or at least partially eliminate the barrier that is the altered layer to reach and smudge the more internal layers or values.
• the maculation means has, for example, kinetics of action (penetration into the values, chemical reaction, etc.) improved compared with its isolated action, and / or its action is controllable because of the synergy that it maintains with said means. thermal attack.
• controllable kinetics means that the choice of an attack temperature T has given, for example by the election of a particular ratio between the chemical compounds involved in the thermal attack means, or by the selection of a particular intensity / voltage pair in the physical heat-etching means enables the prediction and control of the kinetics of action of the staining means. There is thus a control and / or regulation of the staining means by the thermal attack means.
• the state transition temperature advantageously corresponds to the glass transition temperature
• the irreversible degradation temperature advantageously corresponds, if relevant (eg in the case of semi-crystalline polymers), at the melting temperature (liquid flow).
• a polymer At such a temperature (or in such a temperature range) a polymer is in its rubbery state, in which its chains appear flexible (local mobility) but the flow is prohibited. In this state, the properties of the polymer (for example its permeability, its sorption capacity) are modified, compared with the vitreous state. The transition from the vitreous state to the rubbery state is reversible, especially in the absence of external mechanical stresses.
• said thermal drive means makes it possible to bring the internal temperature of said attack temperature container T to within a range of 50 ° C. to 150 ° C., and preferably 80 ° to 130 ° C.
• At least one layer of said values and / or objects becomes more sensitive to the action of the staining means and / or sees its chemical properties and / or physical evolve (reversibly) under the influence of temperature rise.
• the device is parameterized during its manufacture, before its use or can be parameterized via a parameterization device.
• the user can set one or more variables among which: the attack temperature, the quantity of products released in the container, in order to better adapt the protection conditions of the values and / or objects to be protected .
• the target temperature range can be adjusted to selectively affect one or more particular layers of said values and / or objects.
• said protection means generate an alteration which preserves the identification means of said values such as: inscriptions, serial numbers, transparency zones, etc.
• said maculation means is in the liquid state, and chosen for example (in a non-limiting manner) from the group comprising indelible dyes, the solutions comprising odorous, biological, fluorescent markers or nanoparticles.
• said maculation means is in the gaseous state, and consists for example of a suspension of markers in an oxygenated gas mixture.
• the thermal attack means is a physical means and comprises for example at least one element driver, capable of generating heat, connected to at least one power source.
• said thermal etching means is of a chemical nature, and comprises at least one reagent capable of being involved in an exothermic chemical reaction.
• the exothermic reaction occurs when said heat etching means is contacted with said staining means.
• a polymerization reaction when there is an exothermic reaction, this is the result of a polymerization reaction. It may be a polycondensation or preferably a chain polymerization.
• a particularly preferred example of a polymerase chain reaction is to react one or more polyols with one or more isocyanates to obtain a polyurethane foam.
• such a polymerization reaction is advantageously employed in a device according to the invention, not only by its exothermic nature, but also because the obtained product forms a coherent medium able to solidify around the values (in contact with them or not) and constitutes an additional means (in addition to thermal etching and staining) for protecting said values and / or objects.
• an aqueous compound can be used in combination with oxides, strong acids or bases, or an alcohol / acid combination such as than methanol / nitric acid.
• Another possibility is the use of a cyanoacrylate / activator combination.
• said heat attack means or the product resulting from a reaction implementing it, can be kept apart, for example in a specific compartment in the case of liquid products or gaseous, or separated from a safety distance in the case of a physical medium, so that on the one hand it does not come into contact with the values to be protected and on the other hand the values are subject to the thermal radiation released.
• the device may have a distribution circuit of the staining means.
• a first quantity of said staining means can be brought into contact with the values on the one hand, and a second quantity can be brought into contact with said thermal attack means independently.
• the opposite option is also conceivable.
• the means for triggering the thermal etching and staining means are activated when an attempted burglary is detected at the container.
• the use of a single trigger means or an individual trigger means for each means of protection values is possible.
• the one or more means for triggering said thermal etching and staining means can synchronize the release in said container of the means of protection. values, or delay the successive release of said means.
• the thermal etching means is advantageously released first.
• the device according to the invention makes it possible to protect values and / or objects against burglary and guarantees the preservation of an identification a posteriori.

Landscapes

• Burglar Alarm Systems (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=56990496

Family Applications (1)

Country Status (2)

Cited By (1)

Citations (6)

• 2016
  • 2016-05-02 FR FR1653958A patent/FR3050754B1/fr not_active Expired - Fee Related
• 2017
  • 2017-05-02 EP EP17169147.0A patent/EP3241970A1/de not_active Withdrawn

Patent Citations (6)

Non-Patent Citations (1)

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