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
  • G09F3/0329—Forms or constructions of security seals characterised by the type of seal used having electronic sealing means
  • G09F3/0335—Forms or constructions of security seals characterised by the type of seal used having electronic sealing means using RFID tags
• • 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
  • G09F3/0291—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
  • G09F3/0292—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time tamper indicating labels
• • 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
  • G09F3/04—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps to be fastened or secured by the material of the label itself, e.g. by thermo-adhesion
• • 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
  • G09F3/08—Fastening or securing by means not forming part of the material of the label itself
  • G09F3/14—Fastening or securing by means not forming part of the material of the label itself by strings, straps, chains, or wires

Definitions

• the padlock is predominantly known as a strong metal mechanical lock. It is a lock that essentially connects two eyes by inserting a shackle through said eyes. By anchoring the shackle to a housing connected to the shackle the connection can be secured and unlocked with lock and key.
• the padlock in its classic shape has two functions.
• the first function is that of a mechanical lock for the connection of the two eyes.
• the generally metal housing with metal shackle is so strong that the connection of the two eyes cannot be broken with bare hands.
• the second function is that of visualizing the presence of a lock.
• the shackle which is inserted through the eyes, makes it visually easy to recognize. Also from a distance it is visible that the connection is present and intact. This second aspect is often overlooked.
• the padlock is often used by mechanics for this reason to demonstrably secure the switches that disable a production machine.
• the invention consists of a stacked assembly of very thin and mostly flexible parts, which essentially has the function of a padlock.
• the shackle consists of a flexible strip elongate material (1). This material can be folded or bent into a loop which will function as the shackle of the padlock.
• the strip material is inserted through two eyes (C) to form the closure of the lock.
• the housing (2) of the padlock consist, inter alia, of a to an end of the elongate trip attached self-adhesive surface (3) to which the other free end of the flexible strip is fixed.
• the self-adhesive surface (3) is folded back on itself to adhere the placement of the elongated strip on the two sides.
• the adhesive strength of the self-adhesive zone is so high that the loop consisting of the folded elongated strip (1) can only be broken by tearing through the material of the elongated strip (1).
• the force required to break the connection can be determined. As such it can be determined whether the connection can be broken manually or whether a tool, such as pliers, should be used in case it is desired. Additionally a lower limit for the tearing strength can be set in order to prevent unintentional tearing.
• the possibilities for determining the tearing strength of a plastic film are: the choice of the plastic and consequently its basic strength properties, the thickness of the film, chain stretching and thus direction-dependent tear strength of the film, the orientation of that stretching, weakening by perforation, notching effect of cuts or other types of mechanical interventions.
• the elongated strip (1) consists essentially of a laminate of two amorphous PET films with a thickness between 50 and 90 microns and a low chain orientation in the longitudinal direction of the elongated strip.
• a tearing strength between 50 and 150 Newton is obtained which is both a tearing strength that can be applied manually as well as a tearing strength that prevents unintentional tearing.
• the elongated strip (1) consists of the merger of two oriented films of HDPE, PP, or PET whose chain orientations doe not coincide or are parallel, but are at an angle with respect to each other. Such a configuration is cannot be torn manually and will require a tool in order to be broken.
• an electrical circuit (4) is arranged in the shape of a long and minimally wide loop, which essentially covers the entire length of the elongated strip (1).
• the electrical circuit (4) preferably is mechanically weak with respect to the mechanical strength of the elongated strip (1).
• the housing (2) Connected to the elongated strip (1) with its electrical circuit (4) is a zone located in the same planar plane as the elongated strip (1) and is hereinafter referred to as the housing (2).
• the housing (2) consists of a self-adhesive surface (3) to which the end of the flexible strip (1) is positioned and anchored and a surface on which an RFID (5) is mounted.
• the RFID (5) consists of a programmable logic processing unit (7), an antenna (6) and an input for the electrical circuit (8).
• the electrical circuit in (4) the elongated strip (1) and the RFID (5) are interconnected.
• the logic processing unit (7) of the RFID is set in a different state.
• the state of the RFID (5) can be read remotely. Thereby it is possible to inspect the status of the padlock: intact or broken, even if the padlock is out of sight.
• the antenna of the RFID is capable of using more than one frequency for its communication with the outside world.
• the antenna (6) is shaped to have reduce resonance in order to process a broader spectrum of frequencies. This makes it possible to deploy the padlock in multiple domains while using different communication frequencies.
• the electrical circuit (4) and the RFID with antenna (5) are mounted between two coverings layers (9 and 12), each with its own inwardly facing adhesive layer (10 and 12).
• Elongated strip (1) and housing (2) thus are both part of the same sandwich construction, which allows to further process the semi-finished product as a roll in a later stage of production.
• the sandwich makes it possible to enclose the electrical circuit (4) and RFID with antenna (5) in three dimensions (top, bottom, and sideways) with adhesive and thus isolate it from the outside world.
• the nature and extent of the insulation can be determined by selecting the material properties of the adhesive.
• the adhesive is water-repellent and the adhesive protects thus protects the components against the effects of, for example, rain or splash water.
• the adhesive also has a barrier for water vapor and thus protects the adhesive from corrosion.
• the adhesive has electrically insulating properties and the adhesive thus protects the RFID (5) against unintentional leakage currents.
• the adhesive has thermal insulating properties and thus protects the RFID (5) against unintentional temperature shocks.
• adhesives having a base material styrene-butadiene block polymer which insulates both electrically and thermally, as well as being water- repellent.
• the electrical circuit (4) and the RFID (5) are pre-mounted on a plastic film that is mounted between two plastic films, each with its own inward-facing adhesive layer.
• the thickness of the RFID is also between the 30 and 50 microns.
• the elongated strip (1) and housing (2) consist of a sandwich of a wide (13) and a narrow strip of covering (9), both provided with an adhesive.
• a part of the wide strip with adhesive (12) is not covered by the narrow strip (9).
• Said wide strip (13) has a permanent sticky adhesive (12).
• the sandwich with elongated strip (1), RFID (5) and anchoring zone (3) thereon is formed into a practical geometric shape by means of punching out.
• the electrical circuit (4) and RFID (5) are punched out with a contour that is larger than the outer dimensions of electrical circuit (4) and RFID (5).
• said components are, in all three dimensions, surrounded by adhesive and are isolated from the outside world.
• the elongated strip (1) is punched to a width that is compatible with the size of the eyes (C) that will connect the elongated strip (1) in its function as a shackle.
• i is an elongated strip
• i is the housing and 3 a self-adhesive surface.
• 1 is the elongated strip
• 2 is the housing
• 3 is a self-adhesive surface
• C are two eyes.
• 1 is an elongated strip
• 2 is the housing
• 3 is an adhesive pad
• 4 is an electrical circuit
• 5 is an RFID
• 6 is an antenna of the RFID
• 7 is the logic processing unit
• 8 is the input for the electrical circuit
• the line AB is a line along which the cross-section of Figure 4 is drawn.
• 9 is a top covering, 10 an adhesive layer of the top covering, 11 the layer containing the electronic components, 12 the adhesive layer of the underlying covering, 13 the underlying covering and 14 a protective sheet.

Landscapes

• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Theoretical Computer Science (AREA)
• Computer Security & Cryptography (AREA)
• Burglar Alarm Systems (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=72644501

Family Applications (1)

Country Status (3)

Families Citing this family (2)

Family Cites Families (4)

• 2019
  • 2019-09-04 NL NL1043370A patent/NL1043370B1/nl active
• 2020
  • 2020-09-03 EP EP20780340.4A patent/EP4026113A1/en active Pending
  • 2020-09-03 WO PCT/IB2020/058208 patent/WO2021044337A1/en unknown

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