Classifications

• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B73/00—Devices for locking portable objects against unauthorised removal; Miscellaneous locking devices
  • E05B73/0017—Anti-theft devices, e.g. tags or monitors, fixed to articles, e.g. clothes, and to be removed at the check-out of shops
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B67/00—Padlocks; Details thereof
  • E05B67/06—Shackles; Arrangement of the shackle
  • E05B67/08—Padlocks with shackles hinged on the case
  • E05B67/10—Padlocks with shackles hinged on the case with devices for securing the free end of the shackle
• • G—PHYSICS
  • G08—SIGNALLING
  • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
  • G08B13/00—Burglar, theft or intruder alarms
  • G08B13/22—Electrical actuation
  • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
  • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
  • G08B13/2428—Tag details
  • G08B13/2434—Tag housing and attachment details
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
  • E05B2047/0093—Operating or controlling locks or other fastening devices by electric or magnetic means including means for preventing manipulation by external shocks, blows or the like
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B73/00—Devices for locking portable objects against unauthorised removal; Miscellaneous locking devices
  • E05B73/0017—Anti-theft devices, e.g. tags or monitors, fixed to articles, e.g. clothes, and to be removed at the check-out of shops
  • E05B73/0047—Unlocking tools; Decouplers
  • E05B73/0052—Unlocking tools; Decouplers of the magnetic type

Definitions

• the present invention relates to the field of anti-theft devices intended to secure articles in free distribution. These devices are provided with a means interacting with a gantry equipping the exit areas outside the boxes, and triggering an alarm when a barge tries to leave the place of sale without paying the item to which the antitheft device is attached.
• the cashier has an unlocker to remove the device of the article during the checkout.
• the anti-theft devices are configured according to the geometry and nature of the article to be protected.
• the present invention relates more particularly to anti-theft devices for protecting clothing articles such as shoes, articles having one or more holes in which part of the anti-theft device can be introduced. These include, for example, shoes, leather goods, fashion accessories, underwear, etc.
• the device is then fixed in one of the eyelets of the article.
• It relates to a lock and includes an actuated spring-driven rod that operates in a housing which is adapted to engage one end of a pivoting stirrup when inserted through an opening in the housing.
• a key is provided for threaded engagement with the rod so that the rod is retracted to an inactive position when the key is rotated in a given direction.
• Patent EP0615041 is also known, describing an anti-theft device for spectacles, of the type using an element capable of being fixed to the object to be protected, stall being carried out with a specific tool released by authorized persons, said member being constituted by a plate equipped with attachment means on a presentation support, and by a reinforced link, one end of which is fixed to said plate, said cross member forming, in the locking position, a closed loop of the clamping bridge of the frame of glasses.
• the patents US2004 / 237267, US953556 and US1766784 present other solutions belonging to the technological background.
• the lock mechanism is constituted by a magnetic latch from blocking or release a notch formed on the metal ring, as was already proposed in several previous solutions.
• a thief can remove the device and thus counter the alarm devices provided in the store.
• the present invention relates, in its most general sense, to an antitheft device according to claim 1.
• the body is extended on one side of a median plane passing through the insertion cavity of the free end by a means for actuating said needle, and has on the opposite side a housing for receiving said end of said needle, the housing having locking means configured to allow a movement between a position in which said needle (14) is engaged in said light of the free end of the ring and a release position in which said needle (14) is disengaged from said free end to allow removal of the free end of the ring.
• the housing comprises locking means configured to allow the release of said needle with the aid of an unlocker, to allow a movement between a position in which said needle is engaged in said light of the free end of the ring and a release position in which said needle is disengaged from said free end to allow removal of the free end of the ring.
• said actuating means has at least one cage allowing the displacement of said needle between a retracted position where the tip of said needle does not exceed the inner surface of the receiving cavity of the free end, and an exit position where said needle is engaged in the complementary housing and passes through the complementary light provided in the free end of the ring.
• the actuating means comprises a plurality of nested cages and a spring means for driving the needle into the retracted position at rest.
• the said cages have a cylindrical shape, with a shoulder interacting with a complementary shoulder provided on the consecutive cage to limit movement to the retracted position.
• the locking means is constituted by at least one ball driven by a spring towards the bottom of the housing for receiving the needle, said housing having a frustoconical shape intended to cause a jamming of the ball against the needle, said bile being able to interact with an unlocking means to oppose the action of said spring.
• the needle has a bulge and in that the light provided in the free end has a section of "keyhole" for.
• the body comprises means for pushing the ring in the open position.
• said second portion is extended in the axis of the needle by a damper.
• this damper is constituted by a piece (30) elastically deformable.
• said damper is constituted by a movable part axially and damped by a spring.
• FIG. 1 represents a front view of a device according to the invention in an open position
• FIGS. 2 and 3 show sectional views of the closed device respectively in the unlocked position and in the locked position
• Figure 1 shows a front view of a device according to the invention in the open position.
• the device has the general shape of a padlock, with a body (1) and a ring (2) shaped "U", with two parallel branches (3, 4) connected by an arcuate zone (5).
• the ring (2) can be formed by a metal rod with an oval or rectangular section, or preferably of round section.
• the branch (3) is of round section and slides in a longitudinal cavity of complementary section to the section of the branch (3) and opening on one face (6) of the body (1) through an opening (7).
• the body (1) contains, in a known manner, a means of interaction with an associated detector, for example a tuned antenna, an RFID tag, a transponder or any other equivalent means capable of interacting electromagnetically with complementary equipment. It can also contain an activated sound source in case of fraudulent passage in front of complementary equipment or remote activation by detection of attempted fraud.
• the branch (3) is movable in translation and in rotation relative to the body (1), by sliding between the closed position and the retracted position of opening, represented in FIG. 1.
• the ring (2) is pivotable relative to the longitudinal axis of the leg (3) and the body cavity (1), in a known manner, to provide a large insertion area on an object to protect.
• the branch (4) is configured to penetrate into a complementary cavity provided in the body (1), parallel to the cavity in which the branch (3) moves.
• the ring (2) can also interact with the body (1) by pivoting with respect to a transverse pivot or by a displacement along a circular arc in a curved cavity.
• the free end of the leg (4) has a keyhole-shaped slot (8).
• This light (8) has a first inner section (9) of width less than the width of a second outer section
• the body still has a locking system
• Figures 2 and 3 show sectional views of the device respectively in the unlocked position and in the locked position.
• the locking system (11) comprises a needle (14) having, in the example described, a bulge (15).
• the section of the needle (14) substantially corresponds to the first inner section (9) of the hole formed at the free end of the ring (2).
• the section of the bulge (15) substantially corresponds to the first outer section (10) of the hole formed at the free end of the ring (2).
• the needle (14) is pushed into the retracted position by a spring (16) shown in Figure 2 partially only.
• This spring (16) abuts against an annular shoulder (17) provided at the head (18) of the needle (14).
• This spring is supported on the opposite side on the bottom (19) of the locking system, and opening with an opening allowing the tip of the needle (14) to pass through the hole (8) passing through the free end of the branch (4) of the ring.
• the needle (14) is enclosed in a set of three retractable and nested cages (22, 23, 24).
• the first frustoconical cage (22) has the largest section. It is fixed and integral with the flange (19). It has an inner shoulder (25) reducing the section and delimiting a passage for the second frustoconical cage (23) having an outer shoulder (26) limiting the displacement and preventing the withdrawal of the second cage relative to the first cage (22) .
• the second cage (23) also has an inner shoulder (27) reducing the section and defining a passage for a third frustoconical cage (24) having an outer shoulder (28) limiting the displacement and preventing the withdrawal of the third cage by compared to the second cage (23).
• the bottom of the third cage (24) is closed by a bottom (30) constituting an inner abutment against which the head of the needle (14) abuts, and whose outer surface forms a bearing zone allowing the user to push the needle back to the locked position.
• This receptacle (31) has a frustoconical housing (31) containing two balls (32, 33). These balls (32, 33) are pushed towards the bottom (36) of this conical housing (31) by a spring (35) bearing on the bottom of the receptacle (29). These balls come to block the displacement of the needle (14) by the jamming effect resulting from the radial component of the action of the balls (32, 33) on the inner wall of the frustoconical housing (31).
• the balls (32, 33) are metallic and possibly magnetic.
• an unlocker has a strong magnet or an electromagnet is brought near the bottom of the receptacle (29)
• the magnetic force opposes the effect of the spring (35), which reduces the jamming effect of the needle (14) and allows to release the needle, and thus to unlock and open the device.
• different solutions are proposed.
• the first is to orient the longitudinal axis defined by the needle (14) and the receptacle (29) at an angle relative to the transverse plane of the device, for example an angle of 10 to 35 degrees relative to the perpendicular, so that a frontal impact does not intervene in the axis of movement of the balls (32, 33).
• the bottom of the receptacle (29) is extended by a damped area.
• This is, in the example illustrated in Figure 5, an additional piece elastically deformable, for example a rubber half-sphere (40).
• FIG. 6 An alternative illustrated in Figure 6 is to provide in the bottom of the receptacle (29) a closed cage (41) in which rests the spring (35).
• the needle (14) passes through the hole (8) passing through the free end of the branch (4) of the ring, it prevents the displacement of the ring relative to the body (1) of the device.
• the ring (2) thus forms with the body (1) a closed loop preventing the withdrawal of the protected object.
• the keyhole shape prevents the withdrawal of the needle in the rest position.
• the bulge (15) has a section greater than that of the inner section of the keyhole.
• the outer section (10) is in the axis of the needle (14). This section (10) allows the passage of the bulge (15) and thus the removal of the needle.
• the position of the keyhole relative to the end of the free leg (4) is determined so that the outer section (10) is coaxial with the needle (14) when the ring (2) is completely pushed back into the body (1), and for the effect of an ejection spring branch (3) then pushes the ring so that the needle come into contact with the side of the keyhole lying on the side the free end of the branch (4).

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• Physics & Mathematics (AREA)
• Engineering & Computer Science (AREA)
• Automation & Control Theory (AREA)
• Computer Security & Cryptography (AREA)
• Electromagnetism (AREA)
• General Physics & Mathematics (AREA)
• Burglar Alarm Systems (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=51726585

Family Applications (1)

Country Status (3)

Families Citing this family (3)

Family Cites Families (8)

• 2014
  • 2014-02-04 FR FR1450836A patent/FR3017152B1/fr not_active Expired - Fee Related
• 2015
  • 2015-02-02 WO PCT/FR2015/050231 patent/WO2015118251A1/fr active Application Filing
  • 2015-02-02 EP EP15705677.1A patent/EP3102760B1/de active Active

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