FR2794777A1 - DEVICE FOR LOCKING / UNLOCKING AN ACCESS CONTROL OBSTACLE AND OBSTACLE PROVIDED WITH SAID DEVICE - Google Patents

Abstract

Locking/unlocking device (1) has : supply source (6) for drive (3). Code input unit (5) and supply source are located in portable case (7) including two parts (8, 9) that can be interconnected by fixed connection, so that they can be connected to control housing (4). Connection system has number of contacts used as second coding system. Some contacts route electrical supply to motor and others code, composed on code input unit (5), via control housing.

Description

i The invention relates to a locking / unlocking device

of a

obstacle controlling access.

  It also relates to the obstacle provided with said locking / unlocking device. To control access to traffic lanes, parking lots or similar areas,

  is known to make use of bollards or barriers controlling free movement.

  The least expensive of these bollards is the simple block of concrete or rock that is available, for example around a parking lot so as to leave only a passage that can be controlled by a barrier or a gantry low enough to prevent the intrusion of vehicles higher than

  the height of the gantry crossbar.

  Unfortunately, these concrete blocks can be moved relatively

  easily by one or more motorized vehicles.

  There are known metal terminals in the form of posts

which retract into the ground.

  Such a terminal therefore comprises: - a liner housed vertically in the ground, - a terminal slidably mounted inside the liner between a so-called open position o this terminal is housed in the liner and a closed position o said terminal protrudes from the top edge of the shirt and

  - a means of locking this terminal.

  For the operation of this terminal, it often includes a means

  motor powered by an electric cable.

  For its locking, interposed between the electric current source and the electric motor, it is known to use a control box actuated by a

key or using a code.

  Unfortunately, this locking device is often bypassed by

derivation of electric current.

  The invention proposes to remedy this problem in particular.

  To this end, the invention relates to a device for locking / unlocking an obstacle controlling an access, which obstacle is movable between an active position preventing access and an inactive position authorizing this access, this locking / unlocking device. comprising an electric motor means and a control unit which, in response to the reception of a code composed on a dialing means, actuates the motor means, this device being characterized in that: - the source of electrical supply of the means electric motor and the code composition means are housed in a portable suitcase, which suitcase comprises a so-called mobile fraction of the two fractions of a means of connection of the above-mentioned means with the other fraction of the connection means of the so-called fixed fraction, electrically connected as for the control unit and - in addition to the fact that the connection means comprises more connection pads than necessary to constitute in s or a second coding means, some of these pads convey the electrical supply to the motor and the control unit and others the code composed on the composition means and interpreted

by the control box.

  The invention also relates to the obstacle provided with said locking / unlocking system.

  The invention will be better understood using the description below made to

  by way of nonlimiting example with regard to the appended drawing which diagrammatically represents: FIG. 1: the locking / unlocking device, FIG. 2: an example of obstacle provided with the device

locking / unlocking.

  Referring to the drawing, we see a device 1 for locking / unlocking an obstacle 2 controlling an access, which obstacle is movable between an active position preventing access and an inactive position authorizing this access, this unlocking device comprising a means 3 electric motor and a control unit 4 which, in response to the reception of a

  code composed on a means of composition 5, activates the driving means.

  This obstacle can be in the form of a door driven by a jack.

  or a terminal which can retract into the ground.

  The drive means can either move the terminal, or move a lock immobilizing the terminal in a position, or activate several movements chronologically. According to a characteristic of this device: - the source 6 of electrical power for the electric motor means and the code composition means 5 are housed in a portable suitcase 7, which suitcase comprises a fraction 8 called mobile of the two fractions 8, 9 d 'means for connecting the aforementioned means with the other fraction of the connection means called the fixed fraction, electrically connected to the control unit 4 and - besides that the connection means comprises more connection pads 10 than necessary to constitute as a second coding means, some of these pads convey the electrical supply to the motor and the control unit and others the code composed on the composition means and

  interpreted by the control unit.

  Thus, we cannot by a simple derivation of the electric current activate

locking / unlocking.

  The multiplicity of terminals of the connection means constitutes a first key.

  Then, it is necessary to emit a second code which constitutes a second key.

  The drive means can be an electric actuator which, in the absence of current, does not

can retract or expand.

  The suitcase includes a means for modifying the code stored in the

control box.

  The obstacle is, for example, constituted by a terminal whose emerging part, in the active position, is conical or frustoconical so that it is

  difficult to grasp unless you have special means.

  The advantage of this solution is that even by tearing off the fraction of the connection means located near the terminal to update the cables

  conductors, it is impossible to unlock it.

  The electrical mounting of the locking / unlocking device may include a so-called insulation mounting such as the measurement of the resistance between two conductive cables connecting the fraction of the connection means located at

  proximity to the obstacle and the control means is always the same.

  Advantageously, at least some of the connection pads will

  retractable and will therefore be housed in a folder.

  The displacement of these pads can be achieved for example by

  magnets carried by the pads of the other fraction of the connection means.

  This provision limits the risks associated with acts of vandalism.

Claims (5)

  1. A device for locking / unlocking an obstacle controlling an access, which obstacle is movable between an active position preventing access and an inactive position allowing this access, this unlocking device (1) comprising an electric motor (3) and a control unit (4) which, in response to the reception of a code composed on a composition means (5), actuates the motor means, this device being CHARACTERIZED in that: - the source (6) of electrical supply of the electric motor means and the code composition means (5) are housed in a portable suitcase (7), which suitcase comprises a fraction (8) said to be mobile of the two fractions (8, 9) of a connection means aforementioned means with the other fraction of the connection means known as the fixed fraction, which is electrically connected to the control unit (4) and - in addition to the fact that the connection means comprises more connection pads (10) than necessary to constitute either u n second coding means, some of these pads convey the electrical supply to the motor and the control unit and others the code composed on the composition means and   interpreted by the control unit.   2. Device according to claim 1 characterized in that the electrical mounting of the locking / unlocking device comprises a so-called insulation mounting such as the measurement of the resistance between two conductive cables connecting the fraction of the connection means located near the obstacle and the   2 5 control means is always the same.   3. Device according to claim 1 characterized in that the means of   connection includes a multiplicity of terminals constituting a first key.   4. Device according to claim 1 characterized in that the drive means is an electric actuator which, in the absence of current, cannot retract or 3 0 expand.   5. Device according to claim 1 characterized in that at least   some of the connection pads are retractable.