FR2868459A1 - Panel/drawer locking device for showcase door, has electronic module to trigger time interval and to signal imminence of triggering of alarm device when finger`s presence is not detected so that user closes panel or reads electronic medium - Google Patents

Abstract

The device has a sensor (23) to detect closure of a panel/drawer and presence of a finger. An electronic module (20) triggers a time interval and signals imminence of triggering of an alarm device (24) by a buzzer (32) when the finger`s presence is not detected so that a user reacts, either by closing the panel or by reading an electronic medium (22). The module triggers the alarm device if the user has not reacted. The electronic module triggers the alarm when the time interval is completed. The electronic medium is for example a chip card, electronic key, barcode or a magnetic card. An independent claim is also included for a showcase.

Description

The technical sector of the present invention is that of

  closing and locking panels or drawers, especially for showcase doors.

  Many devices for closing a window door are already known. Most of these devices are made using a key lock for locking the door of the window associated with a force sensor actuated by the door of the window. Although simple to implement, these devices have many disadvantages.

  A first drawback lies in the fact that a key lock is never completely reliable. In addition, when you have a key, it is easy to duplicate it and when a key has been lost or stolen, -15 the enclosure is no longer secure and we are obliged to equip it with a new lock.

  Another disadvantage lies in the fact that these devices do not allow to know when and by whom a speaker has been opened.

  Another drawback, related to the use of the force sensor, lies in the fact that this type of sensor detects the presence of a body in the bolt housing but can not verify whether it is the bolt of panel lock.

  The purpose of the present invention is to provide a secure closure device for panels or drawers to simply manage the opening rights and establish a history of the openings of the enclosure and having effective alarm means for detecting a violation of the enclosure or simply a bad closure of it.

  The invention therefore relates to a device for securely locking an element movable in translation or in rotation with respect to a frame, such as a panel or a drawer, characterized in that it comprises at least one electronic locking means. mechanical means of the movable member relative to the frame and a control means, the locking means being in the form of a finger engaged in a bore of a support and locked in the bore 2868459 2 by a piston, the means control unit cooperating, by means of an electrical or electronic module, with the locking means to control the unlocking of the finger relative to the support.

  According to one characteristic of the invention, the device comprises a means for detecting closure of the panel, constituted by a sensor disposed in the support in the vicinity of the bore receiving the finger, and cooperating with a magnet disposed inside the finger.

  According to one embodiment, the piston is actuated by a motor.

  According to another embodiment, the piston is actuated by an electromagnet.

  According to one embodiment of the invention, the finger is integral with the panel and the support is secured to the frame.

  According to another embodiment of the invention, the finger is secured to the frame and the support is secured to the panel.

  According to another characteristic of the invention, the control means is a reader for reading an electronic medium, magnetic or bearing a specific identification, with or without contact, such as a smart card, an electronic key, a bar code or a magnetic card, and to operate or not the locking device according to the identity associated with the support.

  According to yet another characteristic of the invention, the. device comprises a storage module cooperating with the reader and the electronic module so as to record the events that affected said device.

  According to another characteristic of the invention, the device comprises a connection enabling it to be connected to a computer in order to reset the memory of said device, to control said device and any peripherals by a control software. access or perform maintenance tasks such as setting up the electronic module, programming the reader or retrieving the data recorded by the storage module.

  The invention also relates to an exhibition window implementing a secure locking device, characterized in that it comprises peripherals such as a camera, a light indicator or a lighting ramp actuated by the electronic module during the opening of the window.

  A first advantage of the device according to the invention lies in its ease of implementation and simplicity of assembly.

  Another advantage lies in the fact that the locking and the alarming are carried out automatically at the closing of the showcase.

  Another advantage lies in its ability to manage opening rights, making it possible to create profiles and rights specific to each user.

  Another advantage lies in the highly secure nature of the opening system and the panel closure detection means.

  Other characteristics, details and advantages of the invention will emerge more clearly from the description given below as an indication in relation to drawings in which: FIG. 1 represents a general diagram of the device according to the invention; Figures 2a to 2c are sectional views of the locking device according to the invention, and - Figure 3 is a sectional view of the closing sensor according to the plane AA of Figure 2c.

  Figure 1 shows schematically an exemplary embodiment of the invention with the most complete features. The locking device comprises an electronic module 20 acting in connection with a control means 21 such as a reader allowing the reading of an electronic medium, magnetic or carrying a specific identification, with or without contact (for example a smart card, a badge with a magnetic strip or a bar code, an electronic key or a badge containing a contactless chip), a detection means 23 such as a sensor, an alarm device 24, peripherals such as a camera 25, a warning light 30; , a lighting ramp 31, a memory 26, a clock 27, a buzzer 32 and a locking means 1 whose operation will be explained later. The device also comprises a connection 28, for example of the USB type, making it possible to connect it to a computer in order to reset the device, to control the device and the peripherals by means of access control software or to realize maintenance tasks such as setting the electronic module 20, programming the card reader 21 or the recovery of the data recorded by the memory module 26. Such a device makes it possible to provide the user with all the possibilities of controlling his showcase or his drawer.

  Such an embodiment of the invention is obviously given by way of illustration. In particular, the invention may be carried out in a more restricted manner, for example by implementing a key-controlled locking means 1 performing the function of control means, and an electrical contactor performing the function of an electrical module which, when actuated by the key, triggers unlocking of the locking means.

  FIG. 2a represents, in section, the locking means 1. In this embodiment, the secure closure of a showcase 100 is performed by a secure locking device according to the invention. The window 100 has substantially the shape of a rectangular parallelepiped whose lower face 13 is a wooden plate or any other sufficiently rigid material and the other five sides are glass panels. The figure shows two adjacent glass panels 3 and 14. It will be considered that the panel 3 is movable and bears against the fixed panel 14. For reasons of construction, the panel 3 will be in the form of two half-panels , only one of which is shown in this figure, moving laterally on a slide 12 in order to produce a sliding door. The lower plate 13 and the other fixed panels of the window 100 form the frame 2.

  The panel 3 is lockable by the locking means 1. The locking means 1 is in the form of a finger 4 and a housing 6 fixed to the frame 2. The finger has a groove 40 extended by one end hemispherical 41 and is fixed to the panel 3 by means of a bracket 5. The housing 6 is of substantially parallelepipedal shape and consists of a tube 9, of square section, closed at its ends by plugs 90 and 91. The tube has at one of its ends a radial bore 11 with a diameter substantially greater than the diameter of the finger 4. The bore 11 can extend through the corresponding plug as shown in the figure. Inside the housing 6, an electromagnet 8 and a piston 7 are arranged. The piston is subjected to the action of the electromagnet 8 and a spring 70. The use of an electromagnet as an actuator of the piston 7 is given by way of example, but it will also be possible to realize the device according to the invention by replacing the electromagnet with another actuator, for example a servomotor.

  FIG. 2b illustrates the phase preceding the locking of the finger 4 and FIG. 2c the blocking of the finger by the piston 7. The casing 6 and the finger 4 are arranged in such a way that the finger and the bore 11 are screwed to -vis and that when the panel 3 is at the end of the race and closes the window, the finger 4 fits into the bore 11. The hemispherical end 41 of the finger then bears against the end of the piston 7. The force F along the axis X generates a resultant F 'along the axis Z which pushes the piston 7 towards the electromagnet 8, as shown in FIG. 2b.

  When the groove 40 of the finger 4 is facing the piston 7, the latter, under the action of the spring 70 (Figure 2a), is housed in the groove 40, as shown in Figure 2c. The finger 4 is then locked in the housing 6, which realizes the locking of the finger and the panel 3 is then fixedly held against the panel 14. The unlocking is effected by electrically feeding the electromagnet 8. The latter transforming the electrical energy creates a Laplacian force releasing the piston 7 of the finger 4.

  Such an embodiment also applies to a swing panel. In this case, the finger 4 may be fixed perpendicularly to the panel 3 at the end of the panel opposite the pivot.

  Other embodiments of the invention may be envisaged, for example by replacing the groove 40 of the finger 4 with a flat or with a groove. We can also replace the electromagnet 8 by a motor. It will also be possible to realize the invention by fixing the finger 4 on the frame 2 and fixing the support 6 on the movable member.

  Figure 3 is a sectional view of the end of the housing 6 and the finger 4 along the plane AA of Figure 2c. The finger 4 has in its central part a cavity 43 in which a bipolar magnet 18 is placed. A closure sensor 19 is disposed at the end of the housing 6, in the plug 91. When the finger 4 is present in the bore 11, the bipolar magnet 18 is sufficiently close to the sensor 19 to be detected. In this figure, we see that the opening end of the cavity 43 has a thread 44 for fixing the finger 4 on the bracket 5 (not shown in this figure) by means of a fixing screw (not shown).

  Unlike the force sensors usually used in this type of device, such a sensor not only detects the presence of the finger 4 in the bore 11 but also that it is the finger 4 therein and not a decoy which would mislead the sensor.

  The operation of the device according to the invention is carried out as follows.

  The persons authorized to open the window equipped with the device according to the invention have a badge card 22 of proximity. Such a map is already widely known. It comprises a chip and an antenna arranged inside the card so that it can be read remotely by the proximity reader 21. When the card 22 is placed in front of the reader 21 (the reading distance is approximately 5 to 11 cm), the latter reads the identification data of the card and transmits them to the electronic module 20.

  The electronic module compares the signature of the card with the authorized signatures for the opening of the showcase 100 and compares the time and the day indicated by the clock 27 with the authorizations granted to the card 22. If the card is not identified , or if the permissions that are granted are not valid at this time, the module triggers no opening and the event is stored in the memory 26. If the electronic module recognizes the card 22 and has the necessary permissions at the opening of the window at this time, it controls the electromagnet 8 which triggers the opening of the locking means 1, lights the lighting ramp 31 and the indicator 30 directs the camera 25 to the window 100 and triggers a first timer t1 by means of the clock 27. When the first timer t1 comes to term, the electronic module 20 verifies, by means of the closing sensor 23 that the panel 3 has been closed. If the panel 3 has been closed again, the action is over, the devices 25, 30 and 31 are off and the electronic module waits for a new action.

  If the sensor 23 does not detect the presence of the finger 4, the electronic module 20 triggers a second delay by means of the clock 27 and signals the imminence of the triggering of the alarm by means of the buzzer 32. The user must then quickly react, or by closing the panel 3, the action is then complete, the devices 25, 30 and 31 are off and the electronic module waits for a new action, or by performing a new reading of the card 22, the action returns in its initial stage and a new timer t1 is started. If the user has not reacted, when the timer t2 is complete, the electronic module 20 triggers the alarm 24 which can be stopped only by reading a card 22 and closing the panel 3.

  At each card reading or triggering of the alarm, the memory 26 performs a recording of the action. This registration includes the identity of the card at the origin of the action and the time and date of the action.

  The memory 26 can conventionally be an electronic memory which allows a sufficient storage of the data.

  In the case where it is desired to increase the capacity of the memory 26 (for example in the case where the images recorded by the camera 25 are stored in the memory 26), the electronic memory can be replaced or supplemented by another storage medium such as a hard disk or a tape record.

  The advantage of using such a system lies in the fact that the electronic module can be programmed to dispense provisional authorizations. For example, it will be possible to program the electronic module 20 in order to authorize the opening of a window by an employee only for the days and working hours of the latter. In addition, such a device. allows you to know exactly when a showcase was opened and the people who opened it.

  The cable 28 makes it possible to connect the device to a portable computer and thus to modify simply and quickly the rights related to a card. It also makes it possible to draw up the history of the events (opening, alarm) recorded by the memory 26.

  In order to overcome a possible cutoff of the supply current of the device, it may include an electrical capacitor 29, such as an electric battery.

  If one wishes to realize the device according to the invention in a simpler way, one can replace the reader 21 by a numeric keypad, but the use of an arte remains simpler and the card is not duplicable, whereas It is easy for an unauthorized person to open a shop window by identifying the alpha-numeric code dialed by the seller and then redialing it.

  Other modes of identification can be envisaged, such as fingerprint identification, which has the same advantages as a card reader but at a much higher cost.

2868459 9

Claims (10)

  1. Secure locking device of an element (3) movable in translation or in rotation with respect to a frame (2), such as a panel or a drawer, characterized in that it comprises at least one locking means (1 ) electromechanical of the movable element (3) relative to the frame (2) and a control means (21), the means (1) for locking being in the form of a finger (4) engaged in a bore ( 11) of a support (6) and locked in this bore by a piston (7), the control means (21) cooperating, by means of an electrical or electronic module (20), with the means (1) of locking to control the unlocking of the finger (4) relative to the support (6).   2. Secure locking device according to claim 1, characterized in that it comprises a detection means (23) for closing the panel, consisting of a sensor (12) disposed in the support (6) in the vicinity of the bore (11). ) receiving the finger (4), and cooperating with a magnet (13) disposed within the finger (4).   Secure locking device according to claim 1 or 2, characterized in that the piston (7) is actuated by a motor.   4. Secure locking device according to claim 1 or 2, characterized in that the piston (7) is actuated by an electromagnet (8).   5. Secure locking device according to one of claims 1 to 4, characterized in that the finger (4) is integral with the panel (3) and in that the support (6) is integral with the frame (2).   6. Secure locking device according to one of claims 1 to 4, characterized in that the finger (4) is integral with the frame (2) and in that the support (6) is integral with the panel (3).   7. Secure locking device according to one of the preceding claims, characterized in that the control means (21) is a reader for reading a support (22) electronic, magnetic or carrying a specific identification, with or without contact, such as a smart card, an electronic key, a bar code or a magnetic card, and whether to activate the locking device according to the identity associated with the support (22) - 8. Secure locking device according to claim 7, characterized in that it comprises a storage module (26) cooperating with the reader (21) and the electronic module (20) so as to record the events having affected said device.   9. Secure locking device according to one of the preceding claims, characterized in that it comprises a connector (28) for connecting to a computer in order to reset the memory (26) of said device, to control said device and any peripherals by access control software or to carry out maintenance tasks such as the parameterization of the electronic module (20), the programming of the reader (21) or the recovery of the data recorded by the memory module (26).   10. Exposure showcase implementing a secure locking device according to any one of the preceding claims, characterized in that it comprises peripherals such as a camera, a light or a light bar operated by the electronic module when opening the showcase.