EP0633375B1 - Magnetically controlled locking device - Google Patents
Magnetically controlled locking device Download PDFInfo
- Publication number
- EP0633375B1 EP0633375B1 EP94490031A EP94490031A EP0633375B1 EP 0633375 B1 EP0633375 B1 EP 0633375B1 EP 94490031 A EP94490031 A EP 94490031A EP 94490031 A EP94490031 A EP 94490031A EP 0633375 B1 EP0633375 B1 EP 0633375B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- magnets
- rotor
- key
- stator
- cylinder
- 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.)
- Expired - Lifetime
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Classifications
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- 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
- E05B47/0038—Operating or controlling locks or other fastening devices by electric or magnetic means using permanent magnets
- E05B47/0044—Cylinder locks with magnetic tumblers
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
- E05B27/02—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in operated by the edge of the key
- E05B27/08—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in operated by the edge of the key arranged axially
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
- E05B27/0057—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with increased picking resistance
- E05B27/0075—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with increased picking resistance by movable rotor elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7051—Using a powered device [e.g., motor]
- Y10T70/7057—Permanent magnet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/70—Operating mechanism
- Y10T70/7441—Key
- Y10T70/778—Operating elements
- Y10T70/7791—Keys
- Y10T70/7904—Magnetic features
Definitions
- the present invention relates to a magnetic control locking device; more precisely, it relates to a barrel and key locking device in which magnets provided at the level of the key cooperate with other movable magnets in the barrel.
- a conventional barrel locking device is generally installed in the amount of the door to be locked, that the barrel consists of a fixed stator and a rotor which can be rotated by a key around the axis of the barrel, that the different positions of the rotor with respect to the stator - controlled by the key - correspond to the locked or unlocked states of the device, and that the rotor is equipped with a mechanical member actuating the locking or unlocking system proper Door.
- the object of the present invention is to provide a magnetic control locking device which overcomes the aforementioned drawbacks by reducing the influence of mutual magnetic interactions between magnets.
- Another object of the present invention is to provide a magnetic control locking device which makes it possible to increase the precision of the coding in order to avoid any risk of infringement.
- the device according to the invention provides numerous advantages: it allows blocking and unblocking on both sides of the door, that is to say both from the inside and from the outside; on the other hand, the machining and assembly of these various elements are simple - and therefore can be expensive - because it makes it possible to carry out all the operations, in particular, parallel to the axis of the barrel; the number of codes, that is to say of possible combinations of the magnets and of their implementation, is considerable (several hundreds of millions); finally, the device is waterproof.
- the magnetic control locking device consisting of a key and a barrel, said barrel having a longitudinal axis and comprising a stator and a rotor defining between them an interface, said rotor being able to be rotated by the key around said longitudinal axis of the barrel, said device comprising magnets provided at the level of the key cooperating with other movable magnets in the barrel, is characterized in that on the one hand said magnets of the key and said magnets of the barrel are enclosed in ferromagnetic metal sockets and, on the other hand, said barrel magnets are provided sliding at the interface, in holes made in the stator and / or in holes made in the rotor, so as to lock the rotation of said rotor, said barrel magnets and those of the key being arranged with the same geometric distribution and being magnetically identical two by two.
- Figure 1 is a sectional view in a plane perpendicular to that of the door, showing a particular embodiment of the locking device.
- FIG. 2 is a partial sectional view according to FIG. 1 in a plane parallel to that of the door according to FIG. 1.
- FIGS. 3a and 3b are diagrams illustrating the role of the sockets.
- Figure 4 is a sectional view of the key.
- FIG. 5 is a partial section view of the barrel according to the particular embodiment shown in FIGS. 1 and 2.
- Figures 6 to 10 are simplified front views of the particular embodiment shown in Figures 1 and 2, which more particularly illustrate the relative position of the stator and the rotor in different cases.
- Figure 11 shows, in a radial section a second particular embodiment of the locking device.
- Figure 12 shows, in a side section, details of an embodiment of a part of the locking device shown in Figure 11 above.
- the magnetic control locking device consists of a key 14,114 and a barrel 1,101.
- This barrel has a longitudinal axis 40,140 and comprises a stator 11,111 and a rotor 12,112 which define between them an interface 41,141.
- the rotor 12,112 can be rotated by the key 14,114 around the longitudinal axis 40,140 of the barrel. By turning, the locked rotor unlocks the opening and closing device of the element in which the device according to the invention is installed.
- the latter also includes magnets 16,116 provided at the key 14,114 which cooperate with other magnets 21,121 movable in the barrel 1,101.
- the magnets 16,116 of the key and the magnets 21,121 of the barrel are enclosed in sockets 22,122 made of ferro-magnetic metal whose role is developed below. They are in particular capable of concentrating the magnetic flux lines.
- the magnets 21,121 of the barrel are slidably provided at the interface 41,141. They are movable in holes 20,120 made in the stator 11,111 and / or in holes 26,126 made in the rotor 12,112.
- the magnets 21, 121 and 16, 116 of the barrel and of the key are arranged with the same geometric distribution and are magnetically identical two by two.
- the geometrical dimensions, the magnetic characteristics and the relative arrangements of said magnets of the barrel and of the key are strictly identical.
- the north-south magnetic orientations of the magnets 21,121 and those of the magnets 16,116 can be identical, and in this case, they attract when they are face to face.
- their north-south magnetic orientations can also be reversed, and then they repel each other when they are face to face; it is this latter arrangement which will generally be preferred since it produces more effective forces for the displacement of the mobile elements.
- hole diameters 20,120, 26,126 stator and rotor are also strictly identical and said holes are arranged in the same geometric distribution.
- the key 14,114 it consists of a body of non-magnetic material, such as aluminum for example.
- the magnets 16,116 are placed inside this body in holes 15,115 whose diameter and geometric distribution are identical to those of the barrel 1,101. They are, for example perpendicular to the front face 10,110 of the key; the magnets 16,116 being, for example of small size and of elongated shape.
- the sockets 22,122 made of ferro-magnetic metal consist of a non-magnetic sleeve 42,142 and a cylinder head 43,143 made of ferro-magnetic material. They are thus able to concentrate the magnetic flux released by the magnets 16,116 and 21,121 in a given direction to increase the accuracy of the coding.
- the two magnets are enclosed in their socket, where they are fixed for example by araldite. They are placed exactly face to face, the poles of the same name facing each other. Thanks to the 43,143 ferro-magnetic yokes, the field lines are very concentrated and rigorously symmetrical.
- This identity requirement also relates to the respective diameter, for each of the magnets of the barrel and of the key, of the cylinder head, of the sleeve and of the magnets.
- Another advantage of ferromagnetic sockets 22,122 is to reduce interactions, thanks to the concentration of the flux lines, and thus make it possible to increase the number of magnets and to reach an almost unlimited number of different codes.
- the magnets 16,116 of the key 14,114 and the magnets 21,121 of the barrel 1,101 have magnetic axes 44,144 whose directions are parallel to the axis 40,140 of the barrel during the operations of the device.
- This arrangement makes it possible to carry out all the operations parallel to the axis of the barrel, which simplifies its operation and thus facilitates the machining and the assembly of its various elements.
- the holes 20,120 of the stator are, for example, provided with compression springs 24,124, capable of pushing the magnets 21,121 of the barrel 1,101 into the locked position.
- the holes 16,116 of the rotor 12,112 are, for example, closed on the side facing the key, either by constituting blind holes, or by means of a plate attached to the external facade of the rotor.
- the ferromagnetic metal sockets 22, 122 in which the magnets are clamped are, in particular, open on the side of the front face of the key for the magnets 16, 116 of the key, and, in particular, of the side of the bottom of the rotor for the magnets 21,121 of the barrel.
- Their axis is, for example, parallel to the axis of the barrel 1,101.
- mechanical coupling means of any known type, are provided in the external face of the bottom of the rotor 12,112 and on the front face of the key 14,114.
- the key 14,114 is provided, for example, with a gripping element of any known type, such as, in particular, a bar 18,118.
- the operation of the device, object of the invention is as follows: when the key is presented correctly facing the barrel, that is to say the lugs 19,119 engaged in holes 27,127 formed in the external face of the bottom of the rotor, the magnets 16,116 of the key push the magnets 21,121 of the barrel against the action of the springs 24,124; these small displacements release the interface 41,141 and thus release the rotation of the rotor 12,112 which is obtained by turning the key.
- the magnetic repulsion force must correspond to the stiffness of the springs 24,124 without which the small displacements of the magnets 21,121 are either too large or too limited and the interface 41,141 remains blocked. This feature further enhances the security of the device.
- the sockets 22 have a shear strength such that it is impossible to rotate the rotor with a tool capable of engaging in the key housing and in the case where the 'we would use a key having the same arrangement of the lugs but a different magnetic code, so without being able to repel the magnets 21,121, if we wanted to force the rotation of the rotor, the lugs would be sheared but not the sockets 22,122.
- the first embodiment is developed more particularly, as shown in FIGS. 1 and 2.
- the entire device is installed in the upright 2 of the door to be locked.
- a handle 3 passing through the upright 2 is provided with a comb 4 which can penetrate into a keeper 5 fixed in the frame 6 of the door.
- the rotation of the handle around its axis, which allows the opening or closing of the door, can be locked by the barrel device in various ways: in the system shown, a slide 7 actuated by an eccentric 8 of the rotor of the barrel cooperates with a milling 9 in the handle 3.
- the rotor 12 has the shape of a cylindrical cup which surrounds the stator 11.
- the magnets 21 of the barrel 1 are slidably mounted in said stator 11.
- the sockets 22 comprise an axial appendage, such as 23, around which is mounted the compression spring 24 which bears on the rear of the stator 11.
- the appendages are fixed to a plate 25 parallel to the door which allows control of the device inside.
- the magnets 121 of the barrel 101 are slidably mounted in the rotor 112.
- the orifices 127 allowing the mechanical coupling of the rotor 112 and the key 114 consist of a small return spring 150 and a piston 151, movable under the action of the spring 150 and / or the key 114. In the absence of the key, the outer face of the bottom of the rotor thus remains watertight.
- the barrel is provided, on the side of the key, with a groove 152 opening towards the rotor on a groove 153, the groove 152 and the groove 153 cooperating with a key 173 placed on the key 114 in order to guide the introduction of the latter then to allow its rotation to be free after unlocking.
- the rotor has an axis 154 opening, on the side opposite the key, through the barrel 101 where it cooperates with a plate 155 constituting a control actuator.
- the connection between the axis 154 of the rotor and the plate 155 of the control actuator can be made, for example, using a key.
- the control actuator has a radial light 156.
- the control actuator is driven in translation, as will be developed later, and the light 156 is able to cooperate with locking-unlocking means, such as a bolt, which could be driven during the rotation of the rotor 112.
- An orifice 157 may be provided inside the barrel 101 in order to allow the installation of the locking device according to the invention in, in particular, doors where it is to be used.
- the magnetic control locking device comprises a washer 28,128, thin metal, between the rotor 12,112 and the stator 11,111.
- This washer has openings 31,131 in exact correspondence with the holes 20,120 of the stator and / or the holes 26,126 of the rotor. It is capable of being subjected to an angular offset around the longitudinal axis of the barrel 1,101 so as to prevent the magnets 21,121 of the said barrel from falling back into one of the holes 20,120 or 26,126 during the rotation of the rotor 12,112.
- FIG. 4 is a simplified sectional view, that the rotation of the key and therefore of the rotor can cause different magnets to pass in front of the stator in the same relative positions, which would have the effect of disturbing the operation of the device which would not recognize the magnetic code thus presented.
- the present washer makes it possible to avoid this drawback and thus to further increase the already very high number of possible codes of the device by using, for each existing combination of magnets, different angular positions of the rotor thanks to this additional part.
- the angular offset of the washer 28 is ensured in the following manner.
- the metal washer comprises a central pivot 29 journalling in an axial hole 30 of the stator 11, in the bottom of which it is placed; the openings 31 of the washer being in exact correspondence with the holes 20 of the stator 11.
- this washer has a radial projection 32 formed by two peripheral cutouts 33 and 34, this projection being able to cooperate with two lugs 35 and 36 respectively integral with the stator and the rotor; these pins are arranged at an angular distance less than that of two contiguous holes of the same orbit.
- the axial hole 30, closed by a base 37 contains a torsion spring 38 exerting its torque between the base 37 and the pivot 29 of the washer 28.
- FIG. 6 is a simplified front view of the stator 11: there are four holes, such as 20 containing magnets 21 (not shown), the hole axial 30, as well as the lug 35.
- FIG. 7 we see the washer 28 placed in front of the invisible stator, four holes such as 31 corresponding to the holes 20 of the stator, the radial projection 32 between the two peripheral cutouts 33 and 34, and the lug 35.
- FIG. 8 represents the bottom 13 of the rotor 12 placed in front of the washer 28, the four holes such as 26 corresponding to the previous ones, the lug 35 of the stator, and the lug 36 fixed in the bottom of the rotor, inner side, as well as the eccentric 8 which controls the actual locking of the lock.
- Figures 6, 7 and 8 show the different bodies in the rest position, that is to say, blocked device.
- the sequence of opening or unlocking operations is as follows: the key 14 having been correctly inserted (the pins 19 in the holes 27), the magnets 16 of the key repel those 21 of the stator, thus releasing the rotation of the rotor 11 and the washer 28.
- the torsion spring 38 then rotates the washer 28 until it comes into abutment against the lug 35 of the stator; this position, shown in FIG. 9, is that of a slight angular offset between the stator and the washer which thus masks the holes 20 of the stator, preventing the magnets of the latter from returning to their initial positions, which would cause the blocking of any rotation.
- the key is turned in the opposite direction, which first causes the rotation of the rotor also in the opposite direction, until the lug 36 of the rotor comes to push the radial projection 32 of the washer 28 to return it to its initial position; then, the stator magnets pushed by the compression springs 24 pass through the holes 31 of the washer 28 and those 26 of the rotor, which has the effect of locking the latter.
- a second embodiment proposes a device according to the invention having the advantage of being provided with a rotor which can perform several turns.
- the stator 111 consists of a first fixed part 158 having a longitudinal rod 159.
- a second part 160 of the rotor 111 is movable in translation, marked 170, relative to the first fixed part 158.
- the rod 159 is able to open out through the second movable part 160. It can thus cooperate with a stop 161, secured to the washer 128 to impart an angular offset to the latter.
- the rod 159 and the stop 161 have, opposite, two rounded ends which slide against one another during the introduction of the key 114.
- the angular offset of the washer 128 is then provided just before the rotation of the rotor 112 and the magnets 121 therefore do not risk falling back into holes 120 which are not their housing.
- the mobile part 160 has guide pads 162 cooperating with orifices 163 formed in the fixed part 158.
- the rod 159 opens out through the movable part 160 through a corresponding tubular orifice 164.
- the fixed part 158 it is provided with grooves 165 capable of receiving return means such as, in particular, springs 166, capable of spreading the movable part 160 of the fixed part 158 after removal of the key 114.
- a tubular casing 167 allows cohesion of the entire barrel 101, namely the fixed part of the stator 158, the mobile part of the stator 160, the washer 128 and the rotor 112.
- the key 114 To allow the light 156 to be released and then to be rotated, the key 114 must first be introduced and the movable part 160 of the stator moved in translation, under the action of the rotor 112 itself displaced in translation by the key 114.
- the control actuator is released from the studs 167 and can then be moved in rotation.
- the second part 160, movable in translation, of the stator 111 comprises a housing 168 in which is secured a return spring 169, able to return the thin washer 128 to its initial position.
- the precision of reading the code is extremely fine thanks to the ferromagnetic sockets.
- the mechanism is simple and effective allowing an easy and inexpensive industrial realization.
- the key can have any shape, it can be surrounded by an anti-magnetic cover.
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Description
La présente invention a pour objet un dispositif de verrouillage à commande magnétique ; plus précisément, elle concerne un dispositif de verrouillage à barillet et à clé dans lequel des aimants prévus au niveau de la clé coopèrent avec d'autres aimants mobiles dans le barillet.The present invention relates to a magnetic control locking device; more precisely, it relates to a barrel and key locking device in which magnets provided at the level of the key cooperate with other movable magnets in the barrel.
On sait qu'un dispositif de verrouillage à barillet classique est généralement installé dans le montant de la porte à verrouiller, que le barillet est constitué d'un stator fixe et d'un rotor pouvant être mis en rotation par une clé autour de l'axe du barillet, que les différentes positions du rotor par rapport au stator - commandées par la clé - correspondent aux états bloqués ou débloqués du dispositif, et que le rotor est équipé d'un organe mécanique actionnant le système de verrouillage ou de déverrouillage proprement dit de la porte.It is known that a conventional barrel locking device is generally installed in the amount of the door to be locked, that the barrel consists of a fixed stator and a rotor which can be rotated by a key around the axis of the barrel, that the different positions of the rotor with respect to the stator - controlled by the key - correspond to the locked or unlocked states of the device, and that the rotor is equipped with a mechanical member actuating the locking or unlocking system proper Door.
On sait aussi que la "combinaison" caractéristique de la clé peut être mécanique : c'est le cas le plus fréquent où le "code" est obtenu par des découpes plus ou moins complexes ; mais ce code peut être aussi magnétique. De tels dispositifs sont déjà connus, par exemple par la description du brevet français N° 2.541.345: dans ce brevet, le rotor du barillet est percé d'ouvertures radiales à travers lesquelles peuvent basculer des pièces chevauchant l'interface rotor-stator pour assurer le blocage ou le déblocage du dispositif ; le basculement de ces pièces est obtenu par les actions mutuelles de petits aimants disposés transversalement sur la clé et sur lesdites pièces.We also know that the "combination" characteristic of the key can be mechanical: this is the most frequent case where the "code" is obtained by more or less complex cuts; but this code can also be magnetic. Such devices are already known, for example by the description of French patent N ° 2,541,345: in this patent, the barrel rotor is pierced with radial openings through which parts tilting can overlap the rotor-stator interface for block or unblock the device; the tilting of these parts is obtained by the mutual actions of small magnets arranged transversely on the key and on said parts.
Cependant, la construction et l'assemblage de ces systèmes sont souvent compliqués, et donc fragiles et d'un coût élevé.However, the construction and assembly of these systems is often complicated, and therefore fragile and of high cost.
D'autre part, les risques d'intéraction magnétique obligent à éloigner les aimants les uns des autres et en diminuent donc, pour une même taille de clé et de barillet, le nombre et par là même la quantité de combinaisons possibles.On the other hand, the risks of magnetic interaction force the magnets to be moved away from one another and therefore reduce the number and therefore the number of possible combinations for the same size of key and barrel.
Le but de la présente invention est de proposer un dispositif de verrouillage à commande magnétique qui permette de pallier les inconvénients précités en diminuant l'influence des intéractions magnétiques mutuelles entre aimants.The object of the present invention is to provide a magnetic control locking device which overcomes the aforementioned drawbacks by reducing the influence of mutual magnetic interactions between magnets.
Un autre but de la présente invention est de proposer un dispositif de verrouillage à commande magnétique qui permette d'augmenter la précision du codage afin d'éviter tout risque d'infraction.Another object of the present invention is to provide a magnetic control locking device which makes it possible to increase the precision of the coding in order to avoid any risk of infringement.
De plus, le dispositif suivant l'invention apporte de nombreux avantages : il permet le blocage et le déblocage des deux côtés de la porte, c'est-à-dire aussi bien de l'intérieur que de l'extérieur ; d'autre part, l'usinage et le montage de ces divers éléments sont simples - et donc peut coûteux - car il permet d'effectuer toutes les opérations, notamment, parallèlement à l'axe du barillet ; le nombre de codes, c'est-à-dire de combinaisons possibles des aimants et de leur mise en oeuvre, est considérable (plusieurs centaines de millions) ; enfin, le dispositif est étanche.In addition, the device according to the invention provides numerous advantages: it allows blocking and unblocking on both sides of the door, that is to say both from the inside and from the outside; on the other hand, the machining and assembly of these various elements are simple - and therefore can be expensive - because it makes it possible to carry out all the operations, in particular, parallel to the axis of the barrel; the number of codes, that is to say of possible combinations of the magnets and of their implementation, is considerable (several hundreds of millions); finally, the device is waterproof.
D'autres buts et avantages de la présente invention apparaîtront au cours de la description qui va suivre qui n'est donnée qu'à titre indicatif et qui n'a pas pour but de la limiter.Other objects and advantages of the present invention will appear during the description which follows which is given only for information and which is not intended to limit it.
Selon la présente invention, le dispositif de verrouillage à commande magnétique, constitué d'une clé et d'un barillet, ledit barillet présentant un axe longitudinal et comportant un stator et un rotor définissant entre eux une interface, ledit rotor pouvant être mis en rotation par la clé autour dudit axe longitudinal du barillet, ledit dispositif comprenant des aimants prévus au niveau de la clé coopérant avec d'autres aimants mobiles dans le barillet, est caractérisé par le fait que d'une part lesdits aimants de la clé et lesdits aimants du barillet sont enserrés dans des douilles en métal ferro-magnétique et que, d'autre part, lesdits aimants du barillet sont prévus coulissants au niveau de l'interface, dans des trous ménagés dans le stator et/ou dans des trous ménagés dans le rotor, de manière à verrouiller la rotation dudit rotor, lesdits aimants du barillet et ceux de la clé étant disposés avec la même répartition géométrique et étant identiques magnétiquement deux par deux.According to the present invention, the magnetic control locking device, consisting of a key and a barrel, said barrel having a longitudinal axis and comprising a stator and a rotor defining between them an interface, said rotor being able to be rotated by the key around said longitudinal axis of the barrel, said device comprising magnets provided at the level of the key cooperating with other movable magnets in the barrel, is characterized in that on the one hand said magnets of the key and said magnets of the barrel are enclosed in ferromagnetic metal sockets and, on the other hand, said barrel magnets are provided sliding at the interface, in holes made in the stator and / or in holes made in the rotor, so as to lock the rotation of said rotor, said barrel magnets and those of the key being arranged with the same geometric distribution and being magnetically identical two by two.
L'invention sera mieux comprise si l'on se réfère à la description suivante ainsi qu'aux dessins en annexe qui en font partie intégrante.The invention will be better understood if reference is made to the following description and to the accompanying drawings which form an integral part thereof.
La figure 1 est une vue en coupe dans un plan perpendiculaire à celui de la porte, montrant un mode particulier de réalisation du dispositif de verrouillage.Figure 1 is a sectional view in a plane perpendicular to that of the door, showing a particular embodiment of the locking device.
La figure 2 est une vue en coupe partielle d'après la figure 1 dans un plan parallèle à celui de la porte d'après la figure 1.FIG. 2 is a partial sectional view according to FIG. 1 in a plane parallel to that of the door according to FIG. 1.
Les figures 3a et 3b sont des schémas illustrant le rôle des douilles.Figures 3a and 3b are diagrams illustrating the role of the sockets.
La figure 4 est une vue en coupe de la clé.Figure 4 is a sectional view of the key.
La figure 5 est une vue en coupe partielle du barillet d'après le mode particulier de réalisation représenté aux figures 1 et 2.FIG. 5 is a partial section view of the barrel according to the particular embodiment shown in FIGS. 1 and 2.
Les figures 6 à 10 sont des vues de face simplifiées du mode particulier de réalisation représenté aux figures 1 et 2, qui illustrent plus particulièrement la position relative du stator et du rotor dans différents cas de figures.Figures 6 to 10 are simplified front views of the particular embodiment shown in Figures 1 and 2, which more particularly illustrate the relative position of the stator and the rotor in different cases.
La figure 11 montre, suivant une coupe radiale un second mode particulier de réalisation du dispositif de verrouillage.Figure 11 shows, in a radial section a second particular embodiment of the locking device.
La figure 12 montre, suivant une coupe latérale, des détails de réalisation d'une partie du dispositif de verrouillage représenté à la figure 11 précédente.Figure 12 shows, in a side section, details of an embodiment of a part of the locking device shown in Figure 11 above.
Comme on le voit sur les figures 1 et 11, le dispositif de verrouillage à commande magnétique conforme à l'invention est constitué d'une clé 14,114 et d'un barillet 1,101. Ce barillet présente un axe longitudinal 40,140 et comporte un stator 11,111 et un rotor 12,112 qui définissent entre eux une interface 41,141.As seen in Figures 1 and 11, the magnetic control locking device according to the invention consists of a key 14,114 and a barrel 1,101. This barrel has a longitudinal axis 40,140 and comprises a stator 11,111 and a rotor 12,112 which define between them an interface 41,141.
Le rotor 12,112 peut être mis en rotation par la clé 14,114 autour de l'axe 40,140 longitudinal du barillet. En tournant, le rotor verrouille déverrouille le dispositif d'ouverture fermeture de l'élément dans lequel le dispositif conforme à l'invention est installé.The rotor 12,112 can be rotated by the key 14,114 around the longitudinal axis 40,140 of the barrel. By turning, the locked rotor unlocks the opening and closing device of the element in which the device according to the invention is installed.
D'autre part, ce dernier comprend également des aimants 16,116 prévus au niveau de la clé 14,114 qui coopèrent avec d'autres aimants 21,121 mobiles dans le barillet 1,101.On the other hand, the latter also includes magnets 16,116 provided at the key 14,114 which cooperate with other magnets 21,121 movable in the barrel 1,101.
Selon l'invention, les aimants 16,116 de la clé et les aimants 21,121 du barillet sont enserrés dans des douilles 22,122 en métal ferro-magnétique dont le rôle est développé ci-dessous. Elles sont notamment aptes à concentrer les lignes de flux magnétique.According to the invention, the magnets 16,116 of the key and the magnets 21,121 of the barrel are enclosed in sockets 22,122 made of ferro-magnetic metal whose role is developed below. They are in particular capable of concentrating the magnetic flux lines.
D'autre part, pour permettre de verrouiller la rotation du rotor 12,112, les aimants 21,121 du barillet sont prévus coulissants au niveau de l'interface 41,141. Ils sont mobiles dans des trous 20,120 ménagés dans le stator 11,111 et/ou dans des trous 26,126 ménagés dans le rotor 12,112.On the other hand, to allow the rotation of the rotor 12,112 to be locked, the magnets 21,121 of the barrel are slidably provided at the interface 41,141. They are movable in holes 20,120 made in the stator 11,111 and / or in holes 26,126 made in the rotor 12,112.
Ainsi, quand ces éléments mobiles chevauchent l'interface 41,141, ils empêchent tout mouvement de rotation autour de l'axe du barillet et verrouillent ainsi le dispositif. Par contre, quant ils sont placés d'un côté ou de l'autre de ladite interface, la rotation est libre et le dispositif est déverrouillé.Thus, when these mobile elements overlap the
Toujours selon l'invention, les aimants 21,121 et 16,116 du barillet et de la clé sont disposés avec la même répartition géométrique et sont identiques magnétiquement deux par deux. Ainsi, les dimensions géométriques, les caractéristiques magnétiques et les dispositions relatives desdits aimants du barillet et de la clé sont rigoureusement identiques.Still according to the invention, the
Suivant un premier cas de figure, les orientations magnétiques nord-sud des aimants 21,121 et celles des aimants 16,116 peuvent être identiques, et dans ce cas, ils s'attirent lorsqu'ils sont face à face. Dans un second cas de figure, leurs orientations magnétiques nord-sud peuvent aussi être inversés, et alors ils se repoussent lorsqu'ils sont face à face ; c'est ce dernier montage qui sera généralement préféré car il produit des forces plus efficaces pour le déplacement des éléments mobiles.According to a first case, the north-south magnetic orientations of the magnets 21,121 and those of the magnets 16,116 can be identical, and in this case, they attract when they are face to face. In a second case, their north-south magnetic orientations can also be reversed, and then they repel each other when they are face to face; it is this latter arrangement which will generally be preferred since it produces more effective forces for the displacement of the mobile elements.
De plus, les diamètres des trous 20,120, 26,126 du stator et du rotor sont également rigoureusement identiques et lesdits trous sont disposés suivant la même répartition géométrique.In addition, the hole diameters 20,120, 26,126 stator and rotor are also strictly identical and said holes are arranged in the same geometric distribution.
Suivant un mode avantageux de réalisation de la clé 14,114, celle-ci est constitué d'un corps en matériau amagnétique, comme de l'aluminium par exemple. Les aimants 16,116 sont placés à l'intérieur de ce corps dans des trous 15,115 dont le diamètre et la répartition géométrique sont identiques à ceux du barillet 1,101. Ils sont, par exemple perpendiculaires à la face frontale 10,110 de la clé ; les aimants 16,116 étant, par exemple de petite taille et de forme allongée.According to an advantageous embodiment of the key 14,114, it consists of a body of non-magnetic material, such as aluminum for example. The magnets 16,116 are placed inside this body in holes 15,115 whose diameter and geometric distribution are identical to those of the barrel 1,101. They are, for example perpendicular to the front face 10,110 of the key; the magnets 16,116 being, for example of small size and of elongated shape.
Suivant les figures 3a et 3b, les douilles 22,122 en métal ferro-magnétique sont constituées d'un manchon amagnétique 42,142 et d'une culasse 43,143 en matériau ferro-magnétique. Ils sont ainsi aptes à concentrer le flux magnétique dégagé par les aimants 16,116 et 21,121 suivant une direction donnée pour augmenter la précision du codage.According to Figures 3a and 3b, the sockets 22,122 made of ferro-magnetic metal consist of a non-magnetic sleeve 42,142 and a cylinder head 43,143 made of ferro-magnetic material. They are thus able to concentrate the magnetic flux released by the magnets 16,116 and 21,121 in a given direction to increase the accuracy of the coding.
Les deux aimants sont enserrés dans leur douille, où ils sont fixés par exemple par de l'araldite. Ils sont placés exactement face à face, les pôles de même nom se faisant face. Grâce aux culasses ferro-magnétiques 43,143, les lignes de champ sont très concentrées et rigoureusement symétriques.The two magnets are enclosed in their socket, where they are fixed for example by araldite. They are placed exactly face to face, the poles of the same name facing each other. Thanks to the 43,143 ferro-magnetic yokes, the field lines are very concentrated and rigorously symmetrical.
Ainsi, dans le cas de la figure 3a, elles produisent une force de répulsion mutuelle maximale. Par contre, dans le cas de la figure 3b, les deux aimants sont légèrement décalés et l'effet est totalement inversé : les deux aimants s'attirent.Thus, in the case of FIG. 3a, they produce a maximum mutual repelling force. On the other hand, in the case of FIG. 3b, the two magnets are slightly offset and the effect is completely reversed: the two magnets attract each other.
Cela revient à dire que la définition du code magnétique est considérablement augmentée par cette disposition de la présente invention.This amounts to saying that the definition of the magnetic code is considerably increased by this arrangement of the present invention.
En effet, grâce à la combinaison du manchon amagnétique 42,142 et de la douille ferro-magnétique 43,143, le pôle de l'aimant se trouvant en fond de culasse est ramené en face avant. On passe donc d'un aimant à polarité simple à un aimant à polarité multiple d'où une augmentation de l'exigence d'identicité entre les aimants 21,121 du barillet et les aimants 16,116 de la clé.Indeed, thanks to the combination of the non-magnetic sleeve 42,142 and the ferromagnetic socket 43,143, the pole of the magnet located at the bottom of the cylinder head is brought back to the front face. We therefore go from a magnet with a single polarity to a magnet with multiple polarity, hence an increase in the requirement of identity between the magnets. 21.121 from the barrel and magnets 16.116 from the key.
Cette exigence d'identicité porte également sur le diamètre respectif, pour chacun des aimants du barillet et de la clé, de la culasse, du manchon et des aimants.This identity requirement also relates to the respective diameter, for each of the magnets of the barrel and of the key, of the cylinder head, of the sleeve and of the magnets.
D'autre part, on peut également jouer, pour augmenter sur la précision du codage, sur l'intensité du pouvoir d'aimantation des différents aimants.On the other hand, one can also play, to increase on the precision of the coding, on the intensity of the power of magnetization of the various magnets.
Un autre avantage des douilles ferromagnétiques 22,122 est de diminuer les intéractions, grâce à la concentration des lignes de flux, et de permettre ainsi d'augmenter le nombre d'aimants et d'atteindre un nombre quasiment illimité de codes différents.Another advantage of ferromagnetic sockets 22,122 is to reduce interactions, thanks to the concentration of the flux lines, and thus make it possible to increase the number of magnets and to reach an almost unlimited number of different codes.
D'après les figures 1 et 11, selon un mode préférentiel de réalisation de l'invention, les aimants 16,116 de la clé 14,114 et les aimants 21,121 du barillet 1,101 présentent des axes magnétiques 44,144 dont les directions sont parallèles à l'axe 40,140 du barillet au cours des manoeuvres du dispositif.According to FIGS. 1 and 11, according to a preferred embodiment of the invention, the magnets 16,116 of the key 14,114 and the magnets 21,121 of the barrel 1,101 have magnetic axes 44,144 whose directions are parallel to the axis 40,140 of the barrel during the operations of the device.
Cette disposition permet d'effectuer toutes les opérations parallèlement à l'axe du barillet, ce qui simplifie son fonctionnement et facilite ainsi l'usinage et le montage de ses divers éléments.This arrangement makes it possible to carry out all the operations parallel to the axis of the barrel, which simplifies its operation and thus facilitates the machining and the assembly of its various elements.
Les trous 20,120 du stator sont, par exemple, munis de ressorts de compression 24,124, aptes à repousser les aimants 21,121 du barillet 1,101 en position de verrouillage. Les trous 16,116 du rotor 12,112 sont, par exemple, fermés du côté faisant face à la clé, soit en constituant des trous borgnes, soit au moyen d'une plaquette rapportée sur la façade externe du rotor.The holes 20,120 of the stator are, for example, provided with compression springs 24,124, capable of pushing the magnets 21,121 of the barrel 1,101 into the locked position. The holes 16,116 of the rotor 12,112 are, for example, closed on the side facing the key, either by constituting blind holes, or by means of a plate attached to the external facade of the rotor.
Toujours suivant les figures 1 et 11, les douilles en métal ferro-magnétiques 22,122 dans lesquelles les aimants sont enserrés, sont, notamment, ouvertes du côté de la face frontale de la clé pour les aimants 16,116 de la clé, et, notamment, du côté du fond du rotor pour les aimants 21,121 du barillet. Leur axe est, par exemple, parallèle à l'axe du barillet 1,101.Still according to FIGS. 1 and 11, the
D'autre part, des moyens de couplage mécaniques, de tout type connu, sont prévus dans la face externe du fond du rotor 12,112 et sur la face frontale de la clé 14,114.On the other hand, mechanical coupling means, of any known type, are provided in the external face of the bottom of the rotor 12,112 and on the front face of the key 14,114.
Il peut s'agir, par exemple, de deux ergots, tels que 19,119 dont le rôle est d'une part d'assurer le positionnement correct de la clé par rapport au barillet, et d'autre part, d'entraîner le rotor 12,112 en rotation après son déblocage. Il permet également de limiter le couple de rotation imposé au dispositif. Pour commander et faciliter cette rotation, la clé 14,114 est munie, par exemple, d'un élément de préhension de tout type connu, tel que, notamment, une barrette 18,118.It can be, for example, two pins, such as 19,119 whose role is on the one hand to ensure the correct positioning of the key relative to the barrel, and on the other hand, to drive the rotor 12,112 in rotation after its release. It also makes it possible to limit the torque imposed on the device. To control and facilitate this rotation, the key 14,114 is provided, for example, with a gripping element of any known type, such as, in particular, a bar 18,118.
Le fonctionnement du dispositif, objet de l'invention est le suivant : lorsque la clé est présentée correctement face au barillet, c'est-à-dire les ergots 19,119 engagés dans des trous 27,127 ménagés dans la face externe du fond du rotor, les aimants 16,116 de la clé repoussent les aimants 21,121 du barillet contre l'action des ressorts 24,124 ; ces petits déplacements dégagent l'interface 41,141 et libèrent ainsi la rotation du rotor 12,112 que l'on obtient en tournant la clé.The operation of the device, object of the invention is as follows: when the key is presented correctly facing the barrel, that is to say the lugs 19,119 engaged in holes 27,127 formed in the external face of the bottom of the rotor, the magnets 16,116 of the key push the magnets 21,121 of the barrel against the action of the springs 24,124; these small displacements release the interface 41,141 and thus release the rotation of the rotor 12,112 which is obtained by turning the key.
A ce sujet, on remarque que la force de répulsion magnétique doit correspondre à la raideur des ressorts 24,124 sans quoi les petits déplacements des aimants 21,121 sont soit trop amples, soit trop limités et l'interface 41,141 reste bloquée. Cette caractéristique renforce encore la sécurité du dispositif.In this regard, it is noted that the magnetic repulsion force must correspond to the stiffness of the springs 24,124 without which the small displacements of the magnets 21,121 are either too large or too limited and the interface 41,141 remains blocked. This feature further enhances the security of the device.
De plus, étant donné leur matériau et leur nombre, les douilles 22 présentent une résistance au cisaillement tel qu'il est impossible de faire tourner le rotor avec un outil susceptible de s'engager dans le logement de la clé et dans le cas où l'on utiliserait une clé ayant la même disposition des ergots mais un code magnétique différent, donc sans pouvoir repousser les aimants 21,121, si l'on voulait forcer la rotation du rotor, les ergots seraient cisaillés mais pas les douilles 22,122.In addition, given their material and their number, the
Enfin, suivant l'invention, on peut toujours réduire la profondeur du logement de la clé dans le dispositif pour rendre impossible même une tentative d'effraction.Finally, according to the invention, it is always possible to reduce the depth of the key housing in the device to make it impossible even to attempt to break in.
Dans les paragraphes suivants, on développe plus particulièrement le premier mode de réalisation, comme représenté aux figures 1 et 2. L'ensemble du dispositif est installé dans le montant 2 de la porte à verrouiller. De manière connue, une poignée 3 traversant le montant 2, est munie d'un peigne 4 pouvant pénétrer dans une gache 5 fixée dans le dormant 6 de la porte. La rotation de la poignée autour de son axe, qui permet l'ouverture ou la fermeture de la porte, peut être verrouillée par le dispositif à barillet de diverses manières : dans le système représenté, un coulisseau 7 actionné par un excentrique 8 du rotor du barillet coopère avec un fraisage 9 dans la poignée 3.In the following paragraphs, the first embodiment is developed more particularly, as shown in FIGS. 1 and 2. The entire device is installed in the upright 2 of the door to be locked. In known manner, a
Le rotor 12 présente la forme d'une cuvette cylindrique qui entoure le stator 11. Les aimants 21 du barillet 1 sont montés coulissants dans ledit stator 11.The
Les douilles 22 comportent un appendice axial, tel que 23, autour duquel est monté le ressort de compression 24 qui prend appui à l'arrière du stator 11. Les appendices sont fixés à une platine 25 parallèle à la porte qui permet une commande du dispositif de l'intérieur.The
En effet, il suffit de la tirer en arrière pour faire reculer l'ensemble des aimants 21 et débloquer ainsi le rotor pour neutraliser le présent dispositif. A l'inverse pour la mise en service du dispositif de l'intérieur, il suffit de repousser la platine 25 et de la bloquer dans cette position par tout moyen connu de l'homme de l'art.Indeed, it suffices to pull it back to make all the
Suivant le second mode de réalisation détaillé à la figure 11, on remarque que les aimants 121 du barillet 101 sont montés coulissants dans le rotor 112.According to the second embodiment detailed in FIG. 11, it is noted that the
D'autre part, les orifices 127 permettant le couplage mécanique du rotor 112 et de la clé 114 sont constitués d'un petit ressort de rappel 150 et d'un piston 151, mobile sous l'action du ressort 150 et/ou de la clé 114. En l'absence de la clé, la face externe du fond du rotor reste ainsi étanche.On the other hand, the
Toujours selon ce second mode de réalisation, le barillet est muni, du côté de la clé, d'une rainure 152 débouchant en direction du rotor sur une gorge 153, la rainure 152 et la gorge 153 coopérant avec une clavette 173 placée sur la clé 114 afin de guider l'introduction de cette dernière puis de laisser libre sa rotation après déverrouillage.Still according to this second embodiment, the barrel is provided, on the side of the key, with a
Dans ce second mode de réalisation, le rotor présente un axe 154 débouchant, du côté opposé à la clé, à travers le barillet 101 où il coopère avec une plaquette 155 constituant un actionneur de commande. La liaison entre l'axe 154 du rotor et la plaquette 155 de l'actionneur de commande peut être réalisée, par exemple, à l'aide d'une clavette.In this second embodiment, the rotor has an
L'actionneur de commande présente une lumière 156 radiale. Lors de l'introduction de la clé 114, l'actionneur de commande est entraîné en translation, comme il sera développé plus loin, et la lumière 156 est apte à coopérer avec des moyens de verrouillage-déverrouillage, tels qu'un pène, qui pourra être entraîné lors de la rotation du rotor 112.The control actuator has a
En ce qui concerne le verrouillage en rotation du rotor 12,112, celui-ci est réalisé à l'aide de pistons 174 disposés entre les ressorts de compression 24,124 et les aimants 21,121. Ceci permet de diminuer le risque d'endommagement desdits aimants ou de leur culasse ferro-magnétique.As regards the locking in rotation of the rotor 12,112, this is achieved by means of
Un orifice 157 par exemple fileté, peut être prévu à l'intérieur du barillet 101 afin de permettre l'installation du dispositif de verrouillage conforme à l'invention dans, notamment, des portes où il doit être utilisé.An
Suivant un mode préférentiel de réalisation de l'invention, représenté aux figures 5 et 12, le dispositif de verrouillage à commande magnétique comprend une rondelle 28,128, métallique mince, entre le rotor 12,112 et le stator 11,111. Cette rondelle présente des ouvertures 31,131 en correspondance exacte avec les trous 20,120 du stator et/ou les trous 26,126 du rotor. Elle est apte à être soumise à un décalage angulaire autour de l'axe longitudinal du barillet 1,101 de manière à empêcher les aimants 21,121 dudit barillet de retomber dans un des trous 20,120 ou 26,126 lors de la rotation du rotor 12,112.According to a preferred embodiment of the invention, shown in Figures 5 and 12, the magnetic control locking device comprises a washer 28,128, thin metal, between the rotor 12,112 and the stator 11,111. This washer has openings 31,131 in exact correspondence with the holes 20,120 of the stator and / or the holes 26,126 of the rotor. It is capable of being subjected to an angular offset around the longitudinal axis of the barrel 1,101 so as to prevent the magnets 21,121 of the said barrel from falling back into one of the holes 20,120 or 26,126 during the rotation of the rotor 12,112.
En effet, on voit sur la figure 4, qui est une vue en coupe simplifiée, que la rotation de la clé et donc du rotor peut faire passer devant le stator des aimants différents dans les mêmes positions relatives, ce qui aurait pour effet de perturber le fonctionnement du dispositif qui ne reconnaitrait pas le code magnétique ainsi présenté. La présente rondelle permet d'éviter cet inconvénient et ainsi d'augmenter encore le nombre, déjà très élevé, de codes possibles du dispositif en utilisant pour chaque combinaison existante des aimants, des positions angulaires différentes du rotor grâce à cette pièce supplémentaire.In fact, it can be seen in FIG. 4, which is a simplified sectional view, that the rotation of the key and therefore of the rotor can cause different magnets to pass in front of the stator in the same relative positions, which would have the effect of disturbing the operation of the device which would not recognize the magnetic code thus presented. The present washer makes it possible to avoid this drawback and thus to further increase the already very high number of possible codes of the device by using, for each existing combination of magnets, different angular positions of the rotor thanks to this additional part.
Suivant un premier mode de réalisation, détaillé aux figures 5 à 10, le décalage angulaire de la rondelle 28 est assuré de la manière suivante.According to a first embodiment, detailed in FIGS. 5 to 10, the angular offset of the
La rondelle métallique comporte un pivot central 29 tourillonnant dans un trou axial 30 du stator 11, dans le fond duquel elle est placée ; les ouvertures 31 de la rondelle étant en correspondance exacte avec les trous 20 du stator 11. D'autre part, cette rondelle comporte une saillie radiale 32 formée par deux découpes périphériques 33 et 34, cette saillie pouvant coopérer avec deux ergots 35 et 36 respectivement solidaires du stator et du rotor ; ces ergots sont disposés à une distance angulaire inférieure à celle de deux trous contigus d'une même orbite. Enfin, le trou axial 30, fermé par un culot 37, contient un ressort de torsion 38 exerçant son couple entre le culot 37 et le pivot 29 de la rondelle 28.The metal washer comprises a
Le fonctionnement de cette rondelle 28 est détaillé en se référant aux figures 6 à 10. La figure 6 est une vue de face simplifiée du stator 11 : on y voit quatre trous, tels que 20 contenant des aimants 21 (non représentés), le trou axial 30, ainsi que l'ergot 35. Sur la figure 7, on voit la rondelle 28 placée devant le stator non visible, quatre trous tels que 31 correspondant aux trous 20 du stator, la saillie radiale 32 entre les deux découpes périphériques 33 et 34, et l'ergot 35. La figure 8 représente le fond 13 du rotor 12 placé devant la rondelle 28, les quatre trous tels que 26 correspondant aux précédents, l'ergot 35 du stator, et l'ergot 36 fixés dans le fond du rotor, côté intérieur, ainsi que l'excentrique 8 qui commande le verrouillage proprement dit de la serrure. Les figures 6, 7 et 8 représentent les différents organes en position de repos, c'est-à-dire dispositif bloqué.The operation of this
La séquence des opérations d'ouverture ou de déblocage est la suivante : la clé 14 ayant été correctement mise en place (les ergots 19 dans les trous 27), les aimants 16 de la clé repoussent ceux 21 du stator, libérant ainsi la rotation du rotor 11 et de la rondelle 28. Le ressort de torsion 38 fait alors tourner la rondelle 28 jusqu'à l'amener en butée contre l'ergot 35 du stator ; cette position, représentée sur la figure 9, est celle d'un léger décalage angulaire entre le stator et la rondelle qui masque ainsi les trous 20 du stator, empêchant les aimants de ce dernier de reprendre leurs positions initiales, ce qui provoquerait le blocage de toute rotation.The sequence of opening or unlocking operations is as follows: the key 14 having been correctly inserted (the
A partir de cette position, la poursuite de la rotation de la clé entraîne celle du rotor sans entraîner celle de la rondelle 28 qui continue à masquer les aimants du stator ; cette rotation clé-rotor s'arrête en butée lorsque le déverrouillage est obtenu, par exemple lorsque l'excentrique 8 a fini de dégager le coulisseau 7, par tout moyen connu. Dans cet état final, les éléments précédents ont les positions représentées sur la figure 10.From this position, the continued rotation of the key causes that of the rotor without causing that of the
Pour refermer ou rebloquer le dispositif, on fait tourner la clé en sens inverse, ce qui provoque d'abord la rotation du rotor également en sens inverse, jusqu'à ce que l'ergot 36 du rotor vienne repousser la saillie radiale 32 de la rondelle 28 pour la ramener à sa position initiale ; alors, les aimants du stator poussés par les ressorts de compression 24 repassent dans les trous 31 de la rondelle 28 et ceux 26 du rotor, ce qui a pour effet de rebloquer ce dernier.To close or re-lock the device, the key is turned in the opposite direction, which first causes the rotation of the rotor also in the opposite direction, until the
Grâce à ce premier mode de réalisation, il est possible d'exploiter une rotation de 0 à 250 degrés du rotor, ce qui permet d'actionner plusieurs pênes.With this first embodiment, it is possible to exploit a rotation of 0 to 250 degrees of the rotor, which allows to actuate several bolts.
Un second mode de réalisation, détaillé à la figure 12, propose un dispositif conforme à l'invention présentant l'avantage d'être muni d'un rotor pouvant effectuer plusieurs tours.A second embodiment, detailed in Figure 12, proposes a device according to the invention having the advantage of being provided with a rotor which can perform several turns.
Pour permettre le décalage angulaire, repéré 171, de la rondelle 128, le stator 111 est constitué d'une première partie fixe 158 présentant une tige longitudinale 159. Une seconde partie 160 du rotor 111 est mobile en translation, repéré 170, par rapport à la première partie fixe 158.To allow the angular offset, marked 171, of the
La tige 159 est apte à déboucher à travers la seconde partie mobile 160. Elle peut ainsi coopérer avec une butée 161, assujettie à la rondelle 128 pour imprimer un décalage angulaire à cette dernière. Pour cela, la tige 159 et la butée 161 présentent, en regard, deux extrémités arrondies qui viennent coulisser l'une contre l'autre lors de l'introduction de la clé 114. Le décalage angulaire de la rondelle 128 est alors assuré juste avant la mise en rotation du rotor 112 et les aimants 121 ne risquent donc pas de retomber dans des trous 120 qui ne sont pas leur logement.The
Pour assurer un guidage correct de la translation de la partie mobile 160 du stator par rapport à sa partie fixe 158, la partie mobile 160 présente des plots de guidage 162 coopérant avec des orifices 163 ménagés dans la partie fixe 158.To ensure correct guiding of the translation of the
La tige 159 débouche à travers la partie mobile 160 à travers un orifice tubulaire correspondant 164. Quant à elle, la partie fixe 158 est munie de gorges 165 aptes à recevoir des moyens de rappel comme, notamment, des ressorts 166, aptes à écarter la partie mobile 160 de la partie fixe 158 après retrait de la clé 114.The
Une enveloppe tubulaire 167 permet la cohésion de l'ensemble du barillet 101, à savoir partie fixe du stator 158, partie mobile du stator 160, rondelle 128 et rotor 112.A
On remarque également, du côté du barillet opposé à la clé, des plots 167 coopérant avec l'actionneur de commande 155 de manière à renforcer le blocage en rotation du rotor 112.It is also noted, on the side of the barrel opposite the key,
Ainsi, pour permettre le dégagement de la lumière 156 puis sa rotation, on doit tout d'abord introduire la clé 114 et déplacer la partie mobile 160 du stator en translation, sous l'action du rotor 112 lui-même déplacé en translation par la clé 114. L'actionneur de commande est dégagé des plots 167 et peut alors être déplacé en rotation.Thus, to allow the light 156 to be released and then to be rotated, the key 114 must first be introduced and the
Pour revenir en position initiale, c'est-à-dire celle où les ouvertures 131 de la rondelle 128 et les trous 130 du stator correspondent exactement, la seconde partie 160, mobile en translation, du stator 111 comprend un logement 168 dans lequel est assujetti un ressort de rappel 169, apte à ramener la rondelle mince 128 dans sa position initiale.To return to the initial position, that is to say that where the
Comme représenté à la figure 12, lorsque la tige 159 coopère avec la butée 161, cette dernière comprime le ressort et se trouve dans une position représentée en petits pointillés. Après retrait de la clé, le ressort de rappel 169 repousse la butée 161 dans sa position initiale, représenté par des grands pointillés.As shown in Figure 12, when the
En conclusion, on voit que les avantages apportés par la présente invention sont très nombreux et très intéressants. D'abord, on dispose d'un nombre considérable de possibilités : avec une clé cylindrique d'un diamètre de 20 mm ayant 14 logements pour les aimants, on peut obtenir plus de sept millions de combinaisons, avec seulement 8 aimants ; un programme informatique permettant de gérer toutes ces combinaisons est également disponible.In conclusion, it can be seen that the advantages provided by the present invention are very numerous and very interesting. First, there are a considerable number of possibilities: with a 20 mm diameter cylindrical key having 14 slots for the magnets, one can obtain more than seven million combinations, with only 8 magnets; a computer program to manage all these combinations is also available.
La précision de lecture du code est extrêmement fine grâce aux douilles ferro-magnétiques.The precision of reading the code is extremely fine thanks to the ferromagnetic sockets.
Le mécanisme est simple et efficace permettant une réalisation industrielle aisée et peu coûteuse.The mechanism is simple and effective allowing an easy and inexpensive industrial realization.
Toute tentative d'effraction détruit le rotor supprimant ainsi le seul moyen d'ouverture du dispositif.Any attempted break-in destroys the rotor, thereby eliminating the only means of opening the device.
La clé peut avoir une forme quelconque, elle peut être entourée d'un cache anti-magnétique.The key can have any shape, it can be surrounded by an anti-magnetic cover.
Bien entendu, un certain nombre de variantes peut être apporté au dispositif tel qu'il vient d'être décrit sans pour autant sortir du cadre de l'invention. C'est ainsi, par exemple, que l'on pourra augmenter encore le nombre de codes possibles en modifiant les formes des éléments tels que les aimants (cylindriques, tubulaires ou autres), des douilles, ou du champ magnétique au voisinage de ces éléments.Of course, a number of variants can be made to the device as just described without departing from the scope of the invention. Thus, for example, we can further increase the number of possible codes by modifying the shapes of elements such as magnets (cylindrical, tubular or other), sockets, or the magnetic field in the vicinity of these elements .
Claims (13)
- Magnetically operated locking device, constituted by a key (14, 114) and a cylinder (1, 101), the said cylinder (1, 101) having a longitudinal axis (40, 140) and comprising a stator (11, 111) and a rotor (12, 112) defining between them an interface (41, 141), the said rotor (12, 112) being able to be rotated by the key (14, 114) about the said longitudinal axis (40, 140) of the cylinder, the said device including magnets (16, 116) provided at the key (14, 114) co-operating with other magnets (21, 121) mobile in the cylinder, characterised by the fact that, on one hand, the said magnets (16, 116) of the key (14, 114) and the said magnets (21, 121) of the cylinder (1, 101) are enclosed in sockets (22, 122) of ferromagnetic material and that, on the other hand, the said magnets (21, 121) of the cylinder are designed so as to slide at the interface (41, 141), in holes (20, 120) provided in the stator (11, 111) and/or in holes (26, 126) provided in the rotor (12, 112), in such a way as to lock the said rotor (12, 112) rotationally, the said magnets (21, 121) of the cylinder and those of the key being arranged with the same geometrical distribution and being magnetically identical two by two.
- Device according to claim 1, characterised by the fact that the sockets (22, 122) of ferromagnetic metal are constituted by a non-magnetic sleeve (42, 142) and a yoke (43, 143) of ferromagnetic material, capable of concentrating the magnetic flux in a given direction to increase the precision of the coding.
- Device according to claim 2, characterised by the fact that the said magnets (16, 116) of the key (14, 114) and the said magnets (21, 121) of the cylinder (1, 101) have magnetic axes (44, 144) the directions of which are parallel to the axis (40, 140) of the cylinder when the device is being manipulated.
- Device according to claim 3, characterised by the fact that the holes (20, 120) in the stator are provided with compression springs (24, 124) on the side opposite from the key (14, 114), capable of pushing back the magnets (21, 121) of the cylinder (1, 101) in locked position, while the holes (26, 126) of the rotor are closed on the side facing the key (14, 114).
- Device according to claim 3, characterised by the fact that the sockets of ferromagnetic metal (22, 122) in which the magnets are enclosed are open on the front face side of the key (14, 114), in the case of the magnets (16, 116) of the key, and on the rear end side of the rotor (12, 112), in that of the magnets (21, 121) of the cylinder (1, 101).
- Device according to claim 3, characterised by the fact that mechanical coupling means, of any known type, are provided in the outer face of the rear end of the rotor (12, 112) and on the front face of the key (14, 114).
- Device according to claim 3, characterised by the fact that it includes a disc (28, 128), between the rotor (12, 112) and the stator (11, 111), having openings (31, 131) coinciding precisely with the holes (20, 120) of the stator and/or the holes (26, 126) of the rotor, the said disc (28, 18) being able to be subjected to angular shifting about the longitudinal axis (40, 140) of the cylinder so as to prevent the magnets (21, 121) of the said cylinder from dropping back into one of the said holes during rotation of the rotor (12, 112).
- Device according to claim 3, characterised by the fact that the rotor (12) takes the form of a cylindrical cup which surrounds the stator (11) and that the magnets (21) of the cylinder (1) are mounted so as to slide in the said stator (11).
- Device according to claim 3, characterised by the fact that the magnets (121) of the cylinder (101) are mounted so as to slide in the rotor (112).
- Device according to claim 7, characterised by the fact that the disc (28) is placed in the rear end of the stator (11) and comprises a radial projection (32) capable of co-operating with two pins (35, 36) integral, respectively, with the stator (11) and the rotor (12) at an angular distance less than that of two contiguous holes (20).
- Locking device according to claim 10, characterised by the fact that the disc (28) can rotate about a pivot which joumals in an axial hole (30) in the stator under the effect of a torsion spring (38) housed in the said axial hole (30).
- Device according to claim 7, characterised by the fact that the stator (111) is constituted by a first, fixed portion (158), having a longitudinal rod (159), and by a second portion (160) which is mobile in translation in relation to the said first, fixed portion (158), the said rod being capable of emerging through the said second, mobile portion so as to co-operate with a stop (161), secured to the disc (128) to impart an angular shift to the latter.
- Device according to claim 12, characterised by the fact that the second portion (160), mobile in translation, of the stator (111) includes a housing (168) in which is secured a retum spring (169), capable of retuming the disc (128) to the position in which the openings (131) in the said disc (128) and the holes (120) in the said stator (111) coincide precisely.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9308351A FR2707323B1 (en) | 1993-07-07 | 1993-07-07 | Magnetically controlled locking device. |
FR9308351 | 1993-07-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0633375A1 EP0633375A1 (en) | 1995-01-11 |
EP0633375B1 true EP0633375B1 (en) | 1997-11-05 |
Family
ID=9449021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94490031A Expired - Lifetime EP0633375B1 (en) | 1993-07-07 | 1994-07-07 | Magnetically controlled locking device |
Country Status (6)
Country | Link |
---|---|
US (1) | US5605065A (en) |
EP (1) | EP0633375B1 (en) |
CA (1) | CA2127480C (en) |
DE (1) | DE69406597T2 (en) |
ES (1) | ES2111885T3 (en) |
FR (1) | FR2707323B1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6550298B1 (en) * | 2001-10-09 | 2003-04-22 | Liang-Chin Su | Lockset keyway cover-up mechanism |
US20070113605A1 (en) * | 2003-02-17 | 2007-05-24 | Jesus Lopez | Magnetically controlled locking device |
FR2863296B1 (en) * | 2003-12-05 | 2006-03-03 | Thyssenkrupp Elevator Mfg F | BARREL FOR LOCK |
US8397546B2 (en) * | 2010-09-21 | 2013-03-19 | Cosco Management, Inc. | Cabinet security system |
AU2016265050B2 (en) | 2015-05-20 | 2021-09-30 | Hamish CONNAN | A magnetic lock mechanism |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3420077A (en) * | 1966-12-16 | 1969-01-07 | George E Drazin | Pick-proof locks |
DE1800106A1 (en) * | 1968-10-01 | 1970-04-23 | Fujisash Ind Ltd | Key-lock combination with magnetic locking |
JPS497468B1 (en) * | 1969-01-20 | 1974-02-20 | ||
DE1911413C3 (en) * | 1969-03-06 | 1974-02-14 | Fa. Carl Sievers, 5628 Heiligenhaus | Locking device in a solenoid operated lock |
DE2206332C2 (en) * | 1972-02-10 | 1974-03-07 | Mrt Magnet-Regeltechnik Gmbh, 2000 Hamburg | Magnetic locking and control device |
DE2238560A1 (en) * | 1972-08-04 | 1974-02-21 | Mrt Magnet Regeltechnik Gmbh | STEERING LOCK FOR MOTOR VEHICLES |
US3837195A (en) * | 1973-02-08 | 1974-09-24 | E Pelto | Magnetic pin lock |
DE2330014A1 (en) * | 1973-06-13 | 1975-01-09 | Georg Dr Heimann | Cylinder lock with magnetic key - actuated by pressing or turning key adjustable magnetic lock |
US3967480A (en) * | 1975-03-19 | 1976-07-06 | American Locker Company, Inc. | Rotary release magnetically operated lock |
NL7604725A (en) * | 1976-05-04 | 1977-11-08 | Lips Slotenfab | Key for cylinder locks - has bar magnets in recesses working with magnetic lock pins |
DE2621036C3 (en) * | 1976-05-12 | 1979-07-19 | Eduard 8011 Landsham Knabl | Magnetic key operated rotary cylinder lockB |
JPS5617646Y2 (en) * | 1977-12-29 | 1981-04-24 | ||
DE2807520A1 (en) * | 1978-02-22 | 1979-08-23 | Pastor Rudolf | Magnetic vehicle door locking mechanism - has groove guide pins and deflections, and angular hole for key magnet holder |
GB2116244B (en) * | 1982-03-06 | 1985-08-14 | Lowe & Fletcher Ltd | Lock |
DE3209946A1 (en) * | 1982-03-18 | 1983-09-22 | Slavko 7452 Haigerloch Pavlovic | Rotary cylinder lock |
FR2541345A1 (en) * | 1983-02-21 | 1984-08-24 | Ramblier Yves | LOCKING, CONTROL AND CONTROL DEVICE ACTIVATED BY MAGNETIC MEANS, IN PARTICULAR A FERROMAGNETIC LOCK, OF THE BARREL TYPE |
GB8704765D0 (en) * | 1987-02-28 | 1987-04-01 | Instrumentation & Microelectro | Security system |
DE4002092A1 (en) * | 1990-01-25 | 1991-08-01 | Schulte Schlagbaum Ag | LOCK WITH INSERTING A KEY CARD TO BE RELEASED BY INSERTING A AREA MAGNETIZED |
KR940002628B1 (en) * | 1990-02-17 | 1994-03-26 | 가부시끼가이샤 도시바 | Fan |
EP0521854A1 (en) * | 1990-03-19 | 1993-01-13 | LEE, David G. | Improved high security axial pin tumbler lock |
DE4041094A1 (en) * | 1990-12-21 | 1992-06-25 | Dreyer Kurt R | Magnetically operated security lock - has integral magnets to slide bolts into lock, release magnets being in key |
-
1993
- 1993-07-07 FR FR9308351A patent/FR2707323B1/en not_active Expired - Fee Related
-
1994
- 1994-07-06 US US08/271,284 patent/US5605065A/en not_active Expired - Fee Related
- 1994-07-06 CA CA002127480A patent/CA2127480C/en not_active Expired - Fee Related
- 1994-07-07 DE DE69406597T patent/DE69406597T2/en not_active Expired - Fee Related
- 1994-07-07 ES ES94490031T patent/ES2111885T3/en not_active Expired - Lifetime
- 1994-07-07 EP EP94490031A patent/EP0633375B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2127480C (en) | 2000-02-15 |
DE69406597D1 (en) | 1997-12-11 |
FR2707323B1 (en) | 1995-09-08 |
CA2127480A1 (en) | 1995-01-08 |
EP0633375A1 (en) | 1995-01-11 |
DE69406597T2 (en) | 1998-06-04 |
FR2707323A1 (en) | 1995-01-13 |
US5605065A (en) | 1997-02-25 |
ES2111885T3 (en) | 1998-03-16 |
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