EP3868988B1 - Improved locking device - Google Patents

Improved locking device Download PDF

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Publication number
EP3868988B1
EP3868988B1 EP21157315.9A EP21157315A EP3868988B1 EP 3868988 B1 EP3868988 B1 EP 3868988B1 EP 21157315 A EP21157315 A EP 21157315A EP 3868988 B1 EP3868988 B1 EP 3868988B1
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EP
European Patent Office
Prior art keywords
locking device
proximity sensor
lock
striker
striker plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP21157315.9A
Other languages
German (de)
French (fr)
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EP3868988A1 (en
Inventor
Fabrice CHARBONNEL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SpeedInnov SAS
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SpeedInnov SAS
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Publication date
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Publication of EP3868988A1 publication Critical patent/EP3868988A1/en
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Publication of EP3868988B1 publication Critical patent/EP3868988B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C3/00—Fastening devices with bolts moving pivotally or rotatively
    • E05C3/12—Fastening devices with bolts moving pivotally or rotatively with latching action
    • E05C3/16—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch
    • E05C3/22—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled
    • E05C3/24—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled in the form of a bifurcated member
    • E05C3/26—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled in the form of a bifurcated member engaging a stud-like keeper
    • E05C3/28—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled in the form of a bifurcated member engaging a stud-like keeper with simultaneously operating double bolts
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/02—Striking-plates; Keepers; Bolt staples; Escutcheons
    • E05B15/0205—Striking-plates, keepers, staples
    • E05B15/0295—Striking-plates, keepers, staples specially adapted for forked or bifurcated bolts
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B45/00—Alarm locks
    • E05B45/06—Electric alarm locks
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C3/00—Fastening devices with bolts moving pivotally or rotatively
    • E05C3/12—Fastening devices with bolts moving pivotally or rotatively with latching action
    • E05C3/16—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch
    • E05C3/22—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled
    • E05C3/30—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled in the form of a hook
    • E05C3/34—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled in the form of a hook with simultaneously operating double bolts
    • 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
    • E05B2047/0048—Circuits, feeding, monitoring
    • E05B2047/0067—Monitoring
    • E05B2047/0068—Door closed
    • 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
    • E05B2047/0048—Circuits, feeding, monitoring
    • E05B2047/0067—Monitoring
    • E05B2047/0069—Monitoring bolt position

Definitions

  • the field of the invention is that of locking devices of the type comprising, on the one hand, a striker support, provided with a striker, and, on the other hand, a lock case incorporating a bolt consisting of two jaws normally open and arranged to close on the keeper when they encounter it with a certain force.
  • the document FR 1 149 157 discloses a locking device of the aforementioned type.
  • the object of the invention is therefore to overcome the aforementioned problem.
  • the subject of the invention is a locking device of the type comprising, on the one hand, a striker support, provided with a striker, and, on the other hand, a lock box incorporating a lock suitable for closing.
  • the bolt is constituted by a pair of jaws normally open and arranged to close on the striker plate, characterized in that the locking device further comprises a proximity sensor of the inductive type fixed to the striker support and capable of detecting, within the operating range of the proximity sensor, the presence of a reference surface of the lock case, a correctly locked state of the locking device being certified when the distance between the proximity sensor and the reference surface is within the operating range of the proximity sensor.
  • the invention also relates to a vehicle access hatch, comprising an opening suitable for closing off an opening delimited by a frame, and a locking device in accordance with the preceding device, the opening being mounted so as to move relative to the frame between a position open and a closed position.
  • an access hatch comprising an opening 4, such as a cover 4.
  • the opening is delimited by a substantially rectangular frame.
  • the cover 4 is pivotally mounted on an axis parallel to one of the uprights of the frame.
  • At least one locking device is provided to maintain the cover on the frame in a correctly locked state.
  • the locking device 6 comprises, on the one hand, a striker support 10 and, on the other hand, a lock case 20.
  • the striker support 10 is mounted on the field of an upright of the frame 2, said upright being opposite to that on which the cover 4 is pivotally mounted.
  • the lock case 20 is mounted on an edge of the cover 4 so as to be able to cooperate with the striker support 10.
  • An XYZ marker is associated with the locking device 6.
  • the Y axis is parallel to the pivot axis of the cover, the Z axis, called vertical, is oriented towards the center of the opening (the YZ plane corresponding to the plane of the opening to be closed), and the X axis, orthogonal to the Y and Z axes, corresponds to the axis of movement of the lock case 20 during the locking itself on the striker support.
  • the striker support 10 is for example made up of a shaped plate so as to have a “U” shape.
  • the free ends of the wings 11 and 12 of this "U" shaped plate are folded outwards to form flats allowing the fixing of the striker support 10, for example by welding, on the frame 2.
  • the U-shaped plate is shaped so that its intermediate portion has a first flat wall 13, connecting the flanges together, and a second flat wall 15 bent at right angles to the first flat wall 13.
  • the plane of the first flat wall 13 is parallel to the YZ plane, that is to say has a normal parallel to the X axis; the plane of the second flat wall 15 is parallel to the XY plane, that is to say has a normal parallel to the Z axis.
  • the second flat wall 15 is provided with a keeper 16.
  • This preferably takes the form of a cylindrical dowel, the axis B of which is parallel with the axis Z.
  • the first flat wall 13 is pierced with a hole allowing the insertion of a proximity sensor 30.
  • the proximity sensor 30 is of the inductive type.
  • the proximity sensor 30 is of substantially cylindrical shape along an axis C. It comprises a distal end 31, a body 32 and a proximal end 33.
  • the first flat wall 13 is drilled for the passage of the threaded body 32 of the proximity sensor 30.
  • two nuts 34 are provided either side of the wall 13. They are screwed onto the threaded body 32 of the sensor and ensure that it is held in position.
  • the proximity sensor 30 is mounted so that the C axis is parallel to the X axis.
  • the proximal end 33 is oriented towards the lock case 20, and the distal end 31 is away from the lock case 20.
  • An electric cable connects the distal end 31 of the proximity sensor 30 to an electronic device able to analyze at each instant the information on the locking state which is delivered by the proximity sensor 30.
  • This electronic device is not shown in the figure.
  • the lock case 20 consists of a bottom plate 23, on which are mounted the various members forming the lock.
  • a cover 24 covers the bottom plate 23 to close the lock box 20 and protect the various organs.
  • a bolt consisting of a pair of jaws, 21 and 22, articulated so as to be able to pivot, respectively around axes A1 and A2, towards or away from each other.
  • the A1 and A2 axes are parallel to the Z axis.
  • the jaws 21 and 22 are each provided with a spring so as to keep them in the open position.
  • the bottom plate 23 and the cover 24 are provided with a flared indentation intended for the passage of the keeper 16.
  • the jaws 21 and 22 are provided with a notch suitable for cooperating with the striker 16.
  • an additional lever system makes it possible to block the jaws 21 and 22 on the striker 16 in the closed position.
  • the locking device 6 is then in the correctly locked state.
  • the proximity sensor 30 probes (detects) at each instant the presence or absence of the metal face 25 within an operating range, which is characteristic of the proximity sensor.
  • the face 25 is within the operating range of the proximity sensor 30. It is therefore detected by the latter.
  • the face 25 thus constitutes a reference surface whose distance from the proximity sensor 30 (for example at the proximal end 33 of the distance sensor 30) must at most be equal (taking account of a certain tolerance interval) to the upper limit of the operating range of the sensor 30 so that the state correctly locked of the locking device 6 is certified.
  • This upper bound defines a reference distance D.
  • the correctly locked state of the cover on the frame is confirmed.
  • the electronic device is able to emit an alarm as to the correctly locked state of the cover on the frame, for example to help an operator to identify that the technical room is not properly closed.
  • the electronic device is capable of controlling the switching from the open state to the closed state and vice versa of a power supply circuit of a lamp of a dashboard, for example located in a center of railway control.
  • the electronic device maintains the closed state of the switch so that the lamp is powered. It therefore remains lit so as to indicate to the operator that the bonnet is not properly locked.
  • the electronic device switches the switch to its open state so as to interrupt the power supply to the lamp and consequently to turn it off.
  • the invention therefore makes it possible to probe the relative position of the lock case 20 with respect to the striker support 10 using a proximity sensor of the inductive type calibrated to the side of a correct locking of the locking device, of so as to determine the correctly locked state or not of the locking device.
  • an inductive proximity sensor has a detection range of the order of a few millimeters, for example 12 mm. It is therefore capable of detecting the reference surface of the lock case as soon as it is within 12 mm of the latter.
  • the screw-nut type coupling of the proximity sensor on the striker bracket makes it easy to position the proximal end of the proximity sensor with respect to the reference surface given the detection range and the correctly locked state at certify.
  • the detection of the correctly locked state by means of an inductive type proximity sensor is greatly improved compared to the implementation of a mechanical detector, in particular by dissociating the locking function from that of locking detection.
  • This offers the possibility of implementing different types of lock, provided that the lock case enclosing the lock has a suitable reference surface, that is to say whose position relative to the complementary element of the lock (the striker support) is correlated to the correctly locked state of the lock and therefore of the locking device.
  • the striker support 10 is mounted on the cover 4 and the lock box 20 is mounted on the upright of the frame 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)

Description

L'invention a pour domaine celui des dispositifs de verrouillage du type comportant, d'une part, un support de gâche, muni d'une gâche, et, d'autre part, un boîtier de serrure intégrant un verrou constitué de deux mâchoires normalement ouvertes et agencées pour se refermer sur la gâche lorsqu'elles rencontrent celle-ci avec une certaine force.The field of the invention is that of locking devices of the type comprising, on the one hand, a striker support, provided with a striker, and, on the other hand, a lock case incorporating a bolt consisting of two jaws normally open and arranged to close on the keeper when they encounter it with a certain force.

Le document FR 1 149 157 divulgue un dispositif de verrouillage du type précité.The document FR 1 149 157 discloses a locking device of the aforementioned type.

Il y a cependant un besoin pour pouvoir s'assurer de l'état correctement verrouillé d'un tel dispositif de verrouillage.There is however a need to be able to ensure the correctly locked state of such a locking device.

On connaît pour ce faire des systèmes mécaniques associés au verrou et propres à détecter, par contact direct avec la gâche, l'état correctement verrouillé du dispositif de verrouillage.To do this, mechanical systems associated with the lock and capable of detecting, by direct contact with the striker, the correctly locked state of the locking device are known.

Cependant, de tels systèmes mécaniques restent difficiles à intégrer à l'intérieur du boîtier de serrure. Ils sont complexes à réaliser et de maintenance compliquée.However, such mechanical systems remain difficult to integrate inside the lock case. They are complex to make and complicated to maintain.

L'invention a donc pour but de pallier le problème précité.The object of the invention is therefore to overcome the aforementioned problem.

Pour cela l'invention a pour objet un dispositif de verrouillage du type comportant, d'une part, un support de gâche, muni d'une gâche, et, d'autre part, un boîtier de serrure intégrant un verrou propre à se refermer sur la gâche, le verrou est constitué par une paire de mâchoires normalement ouvertes et agencées pour se refermer sur la gâche, caractérisé en ce que le dispositif de verrouillage comporte, en outre, un capteur de proximité du type inductif fixé au support de gâche et propre à détecter, dans la plage de fonctionnement du capteur de proximité, la présence d'une surface de référence du boitier de serrure, un état correctement verrouillé du dispositif de verrouillage étant certifié lorsque la distance entre le capteur de proximité et la surface de référence est à l'intérieur de la plage de fonctionnement du capteur de proximité.For this, the subject of the invention is a locking device of the type comprising, on the one hand, a striker support, provided with a striker, and, on the other hand, a lock box incorporating a lock suitable for closing. on the striker plate, the bolt is constituted by a pair of jaws normally open and arranged to close on the striker plate, characterized in that the locking device further comprises a proximity sensor of the inductive type fixed to the striker support and capable of detecting, within the operating range of the proximity sensor, the presence of a reference surface of the lock case, a correctly locked state of the locking device being certified when the distance between the proximity sensor and the reference surface is within the operating range of the proximity sensor.

Suivant des modes particuliers de réalisation, le dispositif de verrouillage comporte une ou plusieurs des caractéristiques suivantes:

  • la gâche présente une forme de goujon cylindrique monté sur le support de gâche ;
  • le boîtier de serrure est constitué d'une plaque de fond de support des composants du verrou et d'un couvercle d'obturation du boîtier de serrure, la plaque de fond et le couvercle présentant une échancrure pour recevoir la gâche ;
  • le boîtier de serrure est muni d'un moyen de blocage du verrou dans l'état correctement verrouillé ;
  • le support de gâche est conformé de manière à présenter une première paroi plane destinée à être parallèle à la surface de référence du boîtier de serrure, la première paroi de référence portant le capteur de proximité ;
  • le capteur de proximité est connecté électriquement à un dispositif électronique propre à transmettre une information correspondant à l'état du dispositif de verrouillage tel qu'indiqué par le capteur de proximité ;
  • lorsque l'état du dispositif de verrouillage n'est pas l'état correctement verrouillé, le dispositif électronique est propre à émettre une alerte et, lorsque l'état du dispositif de verrouillage est l'état correctement verrouillé, le dispositif électronique est propre à suspendre l'émission de l'alerte ; et
  • l'alerte consiste à placer dans un état fermé un circuit d'alimentation d'une lampe.
According to particular embodiments, the locking device comprises one or more of the following characteristics:
  • the striker has the shape of a cylindrical pin mounted on the striker support;
  • the lock box is made up of a bottom plate supporting the components of the lock and of a closing cover of the lock box, the bottom plate and the cover having an indentation to receive the keeper;
  • the lock case is provided with a locking means of the lock in the correctly locked state;
  • the striker support is shaped so as to have a first flat wall intended to be parallel to the reference surface of the lock case, the first reference wall carrying the proximity sensor;
  • the proximity sensor is electrically connected to an electronic device capable of transmitting information corresponding to the state of the locking device as indicated by the proximity sensor;
  • when the state of the locking device is not the correctly locked state, the electronic device is capable of issuing an alert and, when the state of the locking device is the correctly locked state, the electronic device is capable of suspend the issuance of the alert; And
  • the alert consists of placing a lamp supply circuit in a closed state.

L'invention porte également sur une trappe d'accès de véhicule, comprenant un ouvrant propre à obturer une ouverture délimitée par un cadre, et un dispositif de verrouillage conforme au dispositif précédent, l'ouvrant étant monté mobile par rapport au cadre entre une position ouverte et une position fermée.The invention also relates to a vehicle access hatch, comprising an opening suitable for closing off an opening delimited by a frame, and a locking device in accordance with the preceding device, the opening being mounted so as to move relative to the frame between a position open and a closed position.

L'invention et ses avantages seront mieux compris à la lecture de la description détaillée qui va suivre d'un mode de réalisation particulier, qui est donné uniquement à titre d'exemple illustratif et non limitatif. Cette description est faite en se référant à l'unique figure annexée, sur laquelle est représenté, en perspective, un mode de réalisation préférentiel du dispositif de verrouillage selon l'invention.The invention and its advantages will be better understood on reading the following detailed description of a particular embodiment, which is given solely by way of illustrative and non-limiting example. This description is given with reference to the single appended figure, in which is shown, in perspective, a preferred embodiment of the locking device according to the invention.

La présente description sera faite plus particulièrement dans le cas de l'obturation d'une ouverture, par exemple d'accès à un local technique ferroviaire, par une trappe d'accès comprenant un ouvrant 4, tel qu'un capot 4.The present description will be made more particularly in the case of the closing of an opening, for example of access to a railway technical room, by an access hatch comprising an opening 4, such as a cover 4.

L'ouverture est délimitée par un cadre sensiblement rectangulaire.The opening is delimited by a substantially rectangular frame.

Le capot 4 est monté pivotant sur un axe parallèle à l'un des montants du cadre.The cover 4 is pivotally mounted on an axis parallel to one of the uprights of the frame.

Au moins un dispositif de verrouillage selon l'invention est prévu pour maintenir le capot sur le cadre dans un état correctement verrouillé.At least one locking device according to the invention is provided to maintain the cover on the frame in a correctly locked state.

Comme représenté sur la figure annexée, le dispositif de verrouillage 6 comporte, d'une part, un support de gâche 10 et, d'autre part, un boîtier de serrure 20.As shown in the appended figure, the locking device 6 comprises, on the one hand, a striker support 10 and, on the other hand, a lock case 20.

Le support de gâche 10 est monté sur le champ d'un montant du cadre 2, ledit montant étant opposé à celui sur lequel est monté pivotant le capot 4.The striker support 10 is mounted on the field of an upright of the frame 2, said upright being opposite to that on which the cover 4 is pivotally mounted.

Le boîtier de serrure 20 est monté sur un bord du capot 4 de manière à pouvoir coopérer avec le support de gâche 10.The lock case 20 is mounted on an edge of the cover 4 so as to be able to cooperate with the striker support 10.

Un repère XYZ est associé au dispositif de verrouillage 6. L'axe Y est parallèle à l'axe de pivotement du capot, l'axe Z, dit vertical, est orienté vers le centre de l'ouvrant (le plan YZ correspondant au plan de l'ouverture à obturer), et l'axe X, orthogonal aux axes Y et Z, correspond à l'axe de déplacement du boîtier de serrure 20 lors du verrouillage proprement dit sur le support de gâche.An XYZ marker is associated with the locking device 6. The Y axis is parallel to the pivot axis of the cover, the Z axis, called vertical, is oriented towards the center of the opening (the YZ plane corresponding to the plane of the opening to be closed), and the X axis, orthogonal to the Y and Z axes, corresponds to the axis of movement of the lock case 20 during the locking itself on the striker support.

Le support de gâche 10 est par exemple constitué d'une plaque conformée de manière à présenter une forme en « U ». Les extrémités libres des ailes 11 et 12 de cette plaque en « U » sont repliées vers l'extérieur pour constituer des méplats permettant la fixation du support de gâche 10, par exemple par soudure, sur le cadre 2.The striker support 10 is for example made up of a shaped plate so as to have a “U” shape. The free ends of the wings 11 and 12 of this "U" shaped plate are folded outwards to form flats allowing the fixing of the striker support 10, for example by welding, on the frame 2.

La plaque en « U » est conformée pour que sa portion intermédiaire présente une première paroi plane 13, connectant les ailes entre elles, et une seconde paroi plane 15 repliée à angle droit par rapport à la première paroi plane 13.The U-shaped plate is shaped so that its intermediate portion has a first flat wall 13, connecting the flanges together, and a second flat wall 15 bent at right angles to the first flat wall 13.

Une fois le support de gâche 10 monté, le plan de la première paroi plane 13 est parallèle au plan YZ, c'est-à-dire présente une normale parallèle à l'axe X ; le plan de la seconde paroi plane 15 est parallèle au plan XY, c'est-à-dire présente une normale parallèle à l'axe Z.Once the striker support 10 is mounted, the plane of the first flat wall 13 is parallel to the YZ plane, that is to say has a normal parallel to the X axis; the plane of the second flat wall 15 is parallel to the XY plane, that is to say has a normal parallel to the Z axis.

La seconde paroi plane 15 est munie d'une gâche 16. Celle-ci prend de préférence la forme d'un goujon cylindrique, dont l'axe B est parallèle avec l'axe Z.The second flat wall 15 is provided with a keeper 16. This preferably takes the form of a cylindrical dowel, the axis B of which is parallel with the axis Z.

La première paroi plane 13 est percée d'un trou permettant l'insertion d'un capteur de proximité 30. Le capteur de proximité 30 est du type inductif.The first flat wall 13 is pierced with a hole allowing the insertion of a proximity sensor 30. The proximity sensor 30 is of the inductive type.

Le capteur de proximité 30 est de forme sensiblement cylindrique selon un axe C. Il comporte une extrémité distale 31, un corps 32 et une extrémité proximale 33.The proximity sensor 30 is of substantially cylindrical shape along an axis C. It comprises a distal end 31, a body 32 and a proximal end 33.

Pour le montage du capteur de proximité 30 sur le support de gâche 10, la première paroi plane 13 est percée pour le passage du corps fileté 32 du capteur de proximité 30. Pour bloquer le capteur de proximité 30 en position deux écrous 34 sont prévus de part et d'autre de la paroi 13. Ils se vissent sur le corps fileté 32 du capteur et viennent assurer son maintien en position.For mounting the proximity sensor 30 on the striker support 10, the first flat wall 13 is drilled for the passage of the threaded body 32 of the proximity sensor 30. To lock the proximity sensor 30 in position two nuts 34 are provided either side of the wall 13. They are screwed onto the threaded body 32 of the sensor and ensure that it is held in position.

Le capteur de proximité 30 est monté de manière à ce que l'axe C soit parallèle à l'axe X. L'extrémité proximale 33 est orientée vers le boîtier de serrure 20, et l'extrémité distale 31 est à l'écart du boîtier de serrure 20.The proximity sensor 30 is mounted so that the C axis is parallel to the X axis. The proximal end 33 is oriented towards the lock case 20, and the distal end 31 is away from the lock case 20.

Un câble électrique relie l'extrémité distale 31 du capteur de proximité 30 à un dispositif électronique propre à analyser à chaque instant l'information sur l'état de verrouillage qui est délivrée par le capteur de proximité 30. Ce dispositif électronique n'est pas représenté sur la figure.An electric cable connects the distal end 31 of the proximity sensor 30 to an electronic device able to analyze at each instant the information on the locking state which is delivered by the proximity sensor 30. This electronic device is not shown in the figure.

Le boîtier de serrure 20 est constitué d'une plaque de fond 23, sur laquelle sont montés les différents organes formant le verrou. Un couvercle 24 recouvre la plaque de fond 23 pour fermer le boîtier de serrure 20 et protéger les différents organes.The lock case 20 consists of a bottom plate 23, on which are mounted the various members forming the lock. A cover 24 covers the bottom plate 23 to close the lock box 20 and protect the various organs.

Monté sur la plaque de fond 23, à l'intérieur du boîtier de serrure 20, est prévu un verrou constitué d'une paire de mâchoires, 21 et 22, articulées de manière à pouvoir pivoter, respectivement autour d'axes A1 et A2, vers ou à l'écart l'une de l'autre. Les axes A1 et A2 sont parallèles à l'axe Z.Mounted on the bottom plate 23, inside the lock case 20, there is provided a bolt consisting of a pair of jaws, 21 and 22, articulated so as to be able to pivot, respectively around axes A1 and A2, towards or away from each other. The A1 and A2 axes are parallel to the Z axis.

Les mâchoires 21 et 22 sont chacune munies d'un ressort de manière à les maintenir en position ouverte.The jaws 21 and 22 are each provided with a spring so as to keep them in the open position.

La plaque de fond 23 et le couvercle 24 sont munis d'une échancrure évasée destinée au passage de la gâche 16.The bottom plate 23 and the cover 24 are provided with a flared indentation intended for the passage of the keeper 16.

Les mâchoires 21 et 22 sont munies d'une encoche propre à coopérer avec la gâche 16.The jaws 21 and 22 are provided with a notch suitable for cooperating with the striker 16.

Plus précisément, lorsque l'on referme le capot 4 sur le cadre 2, le choc de la gâche 16 sur les talons des encoches des mâchoires 21 et 22 force ces dernières à se refermer sur la gâche 16.More precisely, when the cover 4 is closed on the frame 2, the shock of the striker 16 on the heels of the notches of the jaws 21 and 22 forces the latter to close on the striker 16.

De préférence, mais ceci n'est pas représenté sur la figure, un système de levier annexe permet de bloquer en position refermée les mâchoires 21 et 22 sur la gâche 16. Le dispositif de verrouillage 6 est alors dans l'état correctement verrouillé.Preferably, but this is not shown in the figure, an additional lever system makes it possible to block the jaws 21 and 22 on the striker 16 in the closed position. The locking device 6 is then in the correctly locked state.

Lorsque le capot 4 est rabattu sur le cadre 2, une face 25 du rebord tombé du couvercle 24 du boîtier de serrure 20 est placé en vis-à-vis de la face proximale 33 du capteur de proximité 30.When the cover 4 is folded down on the frame 2, a face 25 of the fallen edge of the cover 24 of the lock box 20 is placed opposite the proximal face 33 of the proximity sensor 30.

Le capteur de proximité 30 sonde (détecte) à chaque instant la présence ou l'absence de la face métallique 25 à l'intérieur d'une plage de fonctionnement, qui est caractéristique du capteur de proximité.The proximity sensor 30 probes (detects) at each instant the presence or absence of the metal face 25 within an operating range, which is characteristic of the proximity sensor.

Dans l'état correctement verrouillée, la face 25 se trouve à l'intérieur de plage de fonctionnement du capteur de proximité 30. Elle est donc détectée par ce dernier.In the correctly locked state, the face 25 is within the operating range of the proximity sensor 30. It is therefore detected by the latter.

La face 25 constitue ainsi une surface de référence dont la distance au capteur de proximité 30 (par exemple à l'extrémité proximale 33 du capteur de distance 30) doit au maximum être égale (en tenant compte d'un certain intervalle de tolérance) à la borne supérieure de la plage de fonctionnement du capteur 30 pour que l'état correctement verrouillée du dispositif de verrouillage 6 soit certifié. Cette borne supérieure définit une distance de référence D.The face 25 thus constitutes a reference surface whose distance from the proximity sensor 30 (for example at the proximal end 33 of the distance sensor 30) must at most be equal (taking account of a certain tolerance interval) to the upper limit of the operating range of the sensor 30 so that the state correctly locked of the locking device 6 is certified. This upper bound defines a reference distance D.

Si la distance entre la face 25 et le capteur de proximité 30 est égale ou inférieure à la distance de référence D, l'état correctement verrouillé du capot sur le cadre est confirmé.If the distance between the face 25 and the proximity sensor 30 is equal to or less than the reference distance D, the correctly locked state of the cover on the frame is confirmed.

Si, au contraire, cette distance est supérieure à la distance de référence D, l'état correctement verrouillé du capot sur le cadre n'est pas confirmé.If, on the contrary, this distance is greater than the reference distance D, the correctly locked state of the cover on the frame is not confirmed.

C'est cette information qui est transmise du capteur de proximité au dispositif électronique.It is this information which is transmitted from the proximity sensor to the electronic device.

Avantageusement, le dispositif électronique est propre à émettre une alarme quant à l'état correctement verrouillé du capot sur le cadre, par exemple pour aider un opérateur à identifier que le local technique n'est pas proprement fermé.Advantageously, the electronic device is able to emit an alarm as to the correctly locked state of the cover on the frame, for example to help an operator to identify that the technical room is not properly closed.

Ainsi par exemple, le dispositif électronique est propre à commander le basculement de l'état ouvert vers l'état fermé et inversement d'un circuit d'alimentation d'une lampe d'un tableau de bord, par exemple situé dans un centre de contrôle ferroviaire.Thus, for example, the electronic device is capable of controlling the switching from the open state to the closed state and vice versa of a power supply circuit of a lamp of a dashboard, for example located in a center of railway control.

Si l'état correctement verrouillé n'est pas confirmé, le dispositif électronique maintient l'état fermé de l'interrupteur pour que la lampe soit alimentée. Elle reste donc allumée de manière à indiquer à l'opérateur que le capot n'est pas convenablement verrouillé.If the correctly locked state is not confirmed, the electronic device maintains the closed state of the switch so that the lamp is powered. It therefore remains lit so as to indicate to the operator that the bonnet is not properly locked.

En revanche, lorsque l'état correctement verrouillé est confirmé, le dispositif électronique bascule l'interrupteur dans son état ouvert de manière à interrompre l'alimentation de la lampe et par conséquent à l'éteindre.On the other hand, when the correctly locked state is confirmed, the electronic device switches the switch to its open state so as to interrupt the power supply to the lamp and consequently to turn it off.

L'invention permet donc de sonder la position relative du boîtier de serrure 20 par rapport au support de gâche 10 à l'aide d'un capteur de proximité du type inductif taré à la côte d'un verrouillage correct du dispositif de verrouillage, de manière à déterminer l'état correctement verrouillé ou non du dispositif de verrouillage.The invention therefore makes it possible to probe the relative position of the lock case 20 with respect to the striker support 10 using a proximity sensor of the inductive type calibrated to the side of a correct locking of the locking device, of so as to determine the correctly locked state or not of the locking device.

L'avantage d'un capteur inductif de proximité est qu'il présente une gamme de détection de l'ordre de quelques millimètres, par exemple 12 mm. Il est donc capable de détecter la surface de référence du boîtier de serrure dès qu'il se trouve à moins de 12 mm de ce dernier. Le couplage du type vis-écrou du capteur de proximité sur le support de gâche permet de facilement positionner l'extrémité proximale du capteur de proximité par rapport à la surface de référence compte tenu de la gamme de détection et de l'état correctement verrouillé à certifier.The advantage of an inductive proximity sensor is that it has a detection range of the order of a few millimeters, for example 12 mm. It is therefore capable of detecting the reference surface of the lock case as soon as it is within 12 mm of the latter. The screw-nut type coupling of the proximity sensor on the striker bracket makes it easy to position the proximal end of the proximity sensor with respect to the reference surface given the detection range and the correctly locked state at certify.

La détection de l'état correctement verrouillé au moyen d'un capteur de proximité du type inductif est fortement améliorée par rapport à la mise en oeuvre d'un détecteur mécanique, notamment par la dissociation de la fonction de verrouillage de celle de détection du verrouillage. Cela offre la possibilité d'implémenter différents types de verrou, sous réserve que le boîtier de serrure renfermant le verrou présente une surface de référence adaptée, c'est-à-dire dont la position relativement à l'élément complémentaire de la serrure (le support de gâche) soit corrélée à l'état correctement verrouillé du verrou et par conséquent du dispositif de verrouillage.The detection of the correctly locked state by means of an inductive type proximity sensor is greatly improved compared to the implementation of a mechanical detector, in particular by dissociating the locking function from that of locking detection. This offers the possibility of implementing different types of lock, provided that the lock case enclosing the lock has a suitable reference surface, that is to say whose position relative to the complementary element of the lock (the striker support) is correlated to the correctly locked state of the lock and therefore of the locking device.

En variante non représentée, le support de gâche 10 est monté sur le capot 4 et le boîtier de serrure 20 est monté sur le montant du cadre 2.In a variant not shown, the striker support 10 is mounted on the cover 4 and the lock box 20 is mounted on the upright of the frame 2.

Claims (9)

  1. Locking device (6) of the type comprising, on the one hand, a striker plate mounting
    (10), provided with a striker plate (16), and, on the other hand, a lock casing (20) incorporating a latch (21, 22) capable of closing on the striker plate, the latch being constituted by a pair of jaws (21, 22) normally open and arranged to close on the striker plate (16), characterised in that
    the locking device further comprises a proximity sensor (30) of the inductive type attached to the striker bracket (10) and adapted to detect, within the operating range of the proximity sensor, the presence of a reference surface (25) of the lock casing (20), a correctly locked state of the locking device (6) being certified when the distance between the proximity sensor and the reference surface is within the operating range of the proximity sensor.
  2. Locking device (6) according to claim 1, wherein the striker plate (16) has a cylindrical pin shape mounted on the striker plate mounting (10).
  3. Locking device (6) according to any one of claims 1 to 2, wherein the lock casing (20) consists of a base plate (23) for supporting the lock components and a cover (24) for closing the lock housing, wherein the base plate and the cover have a cut-out for receiving the striker plate (16).
  4. Locking device (6) according to any of the preceding claims, wherein the lock housing (20) is provided with means for blocking the lock in the correctly locked state.
  5. Locking device (6) according to any one of the preceding claims, wherein the striker bracket (10) is shaped so as to have a first flat wall (13) intended to be parallel to the reference surface (25) of the lock casing (20), the first reference wall carrying the proximity sensor (30).
  6. Locking device (6) according to any one of the preceding claims, wherein the proximity sensor (30) is electrically connected to an electronic device adapted to transmit information corresponding to the state of the locking device as indicated by the proximity sensor (30).
  7. A locking device (6) according to claim 6, wherein, when the state of the locking device is not the correctly locked state, the electronic device is adapted to issue an alert and in which, when the state of the locking device is the correctly locked state, the electronic device is adapted to suspend the issuing of the alert.
  8. Locking device (6) according to claim 7, wherein the alerting consists of placing a lamp supply circuit in the closed state.
  9. Vehicle access hatch comprising:
    - an opening (4) suitable for closing an opening defined by a frame, and
    - a locking device (6) according to any of the preceding claims,
    the window or door being mounted so as to be movable relative to the frame between an open position and a closed position.
EP21157315.9A 2020-02-18 2021-02-16 Improved locking device Active EP3868988B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2001600A FR3107293B1 (en) 2020-02-18 2020-02-18 Improved locking device

Publications (2)

Publication Number Publication Date
EP3868988A1 EP3868988A1 (en) 2021-08-25
EP3868988B1 true EP3868988B1 (en) 2023-07-05

Family

ID=70614134

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21157315.9A Active EP3868988B1 (en) 2020-02-18 2021-02-16 Improved locking device

Country Status (5)

Country Link
EP (1) EP3868988B1 (en)
CN (1) CN113338730A (en)
ES (1) ES2956951T3 (en)
FR (1) FR3107293B1 (en)
PL (1) PL3868988T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3128930B1 (en) * 2021-11-08 2023-11-10 Speedinnov Hatch for a public transport vehicle, car and associated vehicle

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1149157A (en) 1955-12-21 1957-12-20 Agrafes Francaises Et D Articl Locking device
GB2409877B (en) * 2004-01-08 2007-06-13 Tri Mark Corp Latch assembly
DE102009041101A1 (en) * 2009-09-14 2011-03-24 K.A. Schmersal Holding Gmbh & Co. Kg Guard for a component for closing an opening
US20120167644A1 (en) * 2010-12-31 2012-07-05 Berger Mark J Delayed egress paddle alarm door lock
FR2973057B1 (en) * 2011-03-25 2013-12-27 Peugeot Citroen Automobiles Sa DEVICE FOR LOCKING AN OPENING DEVICE WITH AN INSTRUMENTED GACHE AND MOTOR VEHICLE EQUIPPED WITH SUCH A DEVICE.
FR3007390B1 (en) * 2013-06-19 2015-07-17 Airbus Operations Sas LOCKING MECHANISM OF AN AIRCRAFT HOOD INTEGRATING A SENSOR FOR DETECTING THE UNLOCKED HOOD CONDITION
US11021892B2 (en) * 2016-08-17 2021-06-01 Amesbury Group, Inc. Locking system having an electronic keeper

Also Published As

Publication number Publication date
ES2956951T3 (en) 2024-01-05
FR3107293B1 (en) 2022-03-18
EP3868988A1 (en) 2021-08-25
FR3107293A1 (en) 2021-08-20
PL3868988T3 (en) 2024-01-15
CN113338730A (en) 2021-09-03

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