EP2754792A1 - Locking key and cylinder lock assembly corresponding to such a key - Google Patents

Locking key and cylinder lock assembly corresponding to such a key Download PDF

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Publication number
EP2754792A1
EP2754792A1 EP14000142.1A EP14000142A EP2754792A1 EP 2754792 A1 EP2754792 A1 EP 2754792A1 EP 14000142 A EP14000142 A EP 14000142A EP 2754792 A1 EP2754792 A1 EP 2754792A1
Authority
EP
European Patent Office
Prior art keywords
key
accueillage
pins
rollers
roller
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.)
Granted
Application number
EP14000142.1A
Other languages
German (de)
French (fr)
Other versions
EP2754792B1 (en
Inventor
Massimo Valente
Marco Migliasso
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.)
Groupe Valente
Original Assignee
Valente Massimo
Migliasso Marco
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valente Massimo, Migliasso Marco filed Critical Valente Massimo
Priority to US14/331,887 priority Critical patent/US9151077B2/en
Publication of EP2754792A1 publication Critical patent/EP2754792A1/en
Application granted granted Critical
Publication of EP2754792B1 publication Critical patent/EP2754792B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B19/00—Keys; Accessories therefor
    • E05B19/0017—Key profiles
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B35/00—Locks for use with special keys or a plurality of keys ; keys therefor
    • E05B35/003—Locks for use with special keys or a plurality of keys ; keys therefor for keys with movable bits
    • E05B35/004—Locks for use with special keys or a plurality of keys ; keys therefor for keys with movable bits pivoting about an axis perpendicular to the main key axis
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/007—Devices for reducing friction between lock parts

Definitions

  • the present invention is in the field of security locksmithing, in which it seeks to control the reproduction of keys.
  • the invention relates to a security key and a lock assembly formed by such a key and a lock cylinder with which the key is intended to cooperate.
  • the lock assembly comprises a key and a lock cylinder comprising a rotor and a stator, and a set of pins and counter-pins allowing by their respective positioning the locking or unlocking of the rotation of the lock. rotor in the stator.
  • the key according to the invention conventionally comprises a key head and a receiver adapted to be inserted into a slot of the lock cylinder.
  • Point system keys are preferably used, in which the receiver carries impressions in its thickness to cooperate, when the receiver is inserted in the lock cylinder, with the pins of the lock cylinder.
  • the pins are arranged in bores arranged radially in the cylinder, said pins being movable in translation in their respective bores under the effect of a spring tending to push it towards the center of the lock cylinder and in the opposite direction under the effect of the presence of the key when it is in place in its cylinder.
  • each of the pins enters the footprint associated with it respectively.
  • the pins are positioned in an open position in which they allow rotation of the rotor in the stator of the cylinder and thus the opening of the lock.
  • the URIlage of the key comprises axially a window which forms an opening traversing the thickness of the reception from one face to the other, and at least one roller which is mounted on a axis arranged transversely to the window.
  • the diameter of the roller is determined so that when the key is in abutment in the slot of the lock cylinder, the surface of the roller cooperates with the end of a pin arranged radially in the lock cylinder. It may be provided to arrange in the window one or more rollers arranged successively one after the other in the axis of the langlage of the key, and it can be provided that these different rollers have different diameters.
  • the diameter of the roller may be greater than the thickness of the langlage of the key, so that the roller, rotatably mounted about an axis arranged fixed in the median plane of the key, protrudes beyond the sides of the langlage.
  • a roller as a means of cooperation with the pins makes it possible to easily produce a symmetrical key, that is to say a key whose URIlage can be inserted in the slot of the lock cylinder in any meaning.
  • a roller When making impressions by digging the face of the reception, it is necessary to make identical impressions on the opposite face, symmetrically with respect to a point of the median axis of the key located at this height. slot.
  • a roller By using a roller, one can easily bend to this symmetrical configuration constraint since the roller is positioned centered on the median axis so that it presents on both sides of the key an identical prominence.
  • roller is rotatably mounted about its axis, so that it promotes sliding on the pins that are on the path of the key when inserted into the slot. It will be understood that this easier sliding operates as well in the direction of insertion of the key as in the direction of removal thereof.
  • the invention also proposes a lock assembly comprising a key according to the invention and a lock cylinder comprising a rotor and a stator, as well as a set of pins and counter-pins allowing their respective positioning to be locked or unlocked. the rotation of the rotor in the stator.
  • pins are specially arranged sliding radially in the rotor to each correspond with a roller of the security key when the key is in its abutment position in the lock cylinder.
  • the pins will be more or less embedded inside the rotor as they must match when the key is in its abutment position with a roller of greater or lesser diameter.
  • the slot made in the lock cylinder for the passage of the key has two grooves arranged symmetrically on both sides. other of the slot to allow the passage of the rollers of larger diameter than the thickness of the langlage, and which thus extend in projection of this langlage.
  • the two grooves disposed on either side of the slot thus form a guide path in which roll the peripheries of the rollers.
  • the key comprises a key head 2, visible in part, and a host 4 adapted to be inserted into a lock cylinder.
  • An intermediate neck 6 is formed between the head and the langlage and has at its junction with the reception two shoulders forming a stop for stopping in position of the key when it is inserted into the lock cylinder.
  • the reception 4 has a flat shape, here of rectangular section, and it has a free front end 8 arranged axially opposite the neck, here cut to a point.
  • the reception comprises two slices 10 and 12 and two main faces 14 and 16.
  • the reception comprises a window 18 which forms an opening passing through the key from one face to the other and extending axially along the langlage in a centered manner, that is to say at equidistance of the slices. It is understood that in this arrangement, the median axis of the window coincides with the median axis of the langlage.
  • Rollers 20 are arranged in the window. They are mounted around an axis 22 disposed transversely to the window. They are in the example illustrated in number of four, arranged successively along the window.
  • Each of the axes of rotation is mounted in a blind hole, which extends transversely from one of the slices of equidistant reception of the two faces.
  • the axis of rotation is threaded into the blind hole by this slice, until it is in abutment at the bottom of the blind hole. This has a depth such that the bottom of the blind hole is located transversely beyond the window, so that the axis threaded into this hole through the window.
  • each roller is rotatably mounted about its axis which is arranged transversely to the median axis of the langlage, so that each roller is adapted to rotate in a direction parallel to this median axis of the langlage, which corresponds to the direction of insertion of the langlage in the lock cylinder.
  • this facilitates the insertion and release of the key relative to the lock cylinder.
  • the key according to the invention may comprise rollers locked in rotation on their respective axis.
  • the roller here takes the form of a roller in the right cylinder, it being understood that it may alternatively take other forms as soon as it fulfills its role of cooperation with the associated pin of the lock cylinder, and that allows the passage of the pins during the insertion of the key.
  • the right cylindrical shape is the most adapted to cooperate with the end of the pins when they are oriented radially in the rotor, obliquely to the generatrix of the cylindrical periphery of the roller.
  • the rollers may be of different diameters. According to their diameters, the rollers exceed or not on both sides of the langlage. Thus, the roller exceeds the plastlage when its diameter is greater than the thickness of the langlage, while it is entirely contained in the thickness of the plastlage when its diameter is smaller than that of the langlage. It is understood that since the axis of rotation is threaded into a blind hole which extends equidistant from the faces of the langlage, the roller exceeds the same distance relative to each of the faces of the langlage.
  • the distance between two adjacent pebbles remains the same all along the window. It is understood that without departing from the context of the invention, the values of these distances may be distinct. We have referenced on the figure 2 the distances between d1, d2 and d3 respectively and it is understood that they can take an arbitrary value chosen by the locksmith, since these values make it possible to ensure that two rollers can be arranged side by side without touching each other, whatever their diameters.
  • the number of rollers here equal to four, can vary and this variable number, combined with the different available sizes of each of them, generates a multiplicity of possible combinations, which offers a large choice of signature of this type of key.
  • the reception may also include impressions made in the thickness of the URIlage, so as to form depressions of different dimensions and depth, as may be known in previous achievements.
  • these fingerprints are advantageously provided (some of which have been illustrated by way of example on figures 1 , 3 or 5 ) comprise first indentations 24 dug more or less deep relative to the plane of the faces of the URIlage, and second indentations 25 made by erosion of the edges formed between a face and a slice of the key.
  • the imprints are distributed symmetrically with respect to the central axis of the key passing through the center of the rollers so as to provide a reversibility of the key is that is to say to allow the insertion of the URIlage of the key indifferently in one direction or in the other. It is understood that these fingerprints are positioned to take into consideration the presence of the window on the faces and the presence of the blind holes on the slices.
  • the second indentations disposed on the edges are offset axially relative to the blind holes associated with the rollers so as not to interfere with the axes housed in these holes.
  • This method comprises three distinctive successive steps, namely a first machining step in which one seeks to obtain the basic elements of the key, a second assembly step in which the signature of the key according to the invention is created, specific in that it corresponds to a lock cylinder, by assembling in a given configuration the different components of the specific key, and a last machining step in which additional fingerprinting operations are performed on the receiver.
  • the first step is machining on the key of the window and blind holes. This results in a standard key model, different from conventional keys by the presence of the particular window, but which can be used for different key models according to the invention.
  • the axes are also manufactured, adapted to be threaded into the blind holes during assembly, and each of the axes is machined in a standard manner, to have a diameter and a given length.
  • rollers which have different diameters to adapt to the specific needs for each key.
  • the variure of the key is obtained in the second step by mounting at least one roller of specific diameter in the window.
  • the number of rollers, their respective diameters, their spacing and their arrangement from one end to the other of the window offers a multitude of possible signatures that gives the key its authenticity and traceability.
  • the roller For each of the rollers to be mounted, the roller is held in place in the window at one of the blind holes while threading an axis of rotation in the blind hole so that this axis passes into the bore of the roller.
  • the axis When the axis is in abutment against the bottom of the blind hole, it blocks the position of the axis by crushing the edge of the blind hole receiving the axis to reduce the opening diameter of the hole and immobilize the axis.
  • This attachment crushing edges has the advantage in the case considered to prohibit any subsequent disassembly of the key.
  • the signature which is unique to this key and which makes it unique, and which thus contributes to the security of the lock assembly of which it forms part, is furthermore obtained by machining impressions in the third step.
  • the positioning scheme of these fingerprints is specific to the key, and it corresponds to a specific arrangement of the cooperating elements that comprises the lock cylinder to which the key corresponds.
  • a plurality of first impressions is made on the faces around the window and a plurality of second impressions is made on the edges.
  • the first and second indentations are axially offset to allow the arrangement of the corresponding pins in the cylinder. All of these impressions and the interchangeability of the rollers makes it possible to obtain a large number of possible signatures.
  • a key according to the invention is provided to cooperate with a specific lock cylinder 26 in particular that it comprises a series of pins adapted to cooperate with the series of rollers.
  • the cylinder comprises a rotor 28 adapted to rotate inside a stator 30.
  • the rotor has a slot 45 in which the key is adapted to be inserted.
  • This slot has two grooves 46, arranged symmetrically on both sides of the slot, substantially in the center thereof.
  • the slot is also offset with respect to the axis of the cylinder on a diameter of the cylinder, as can be seen on the figure 3 .
  • First bores 32 are made in the cylinder, extending radially from outside the stator to the slot of the rotor, having two parts respectively machined in the rotor and in the stator.
  • An assembly formed by a pin 34 and a counter-pin 36, independent of each other, is installed in each of the radial bores, pushed towards the inside of the cylinder by a spring 38, resting on the counterbore. pin.
  • the first bore has at its bottom a shoulder that allows passage to a pin head so that it can come into contact with the key and which forms a stop for the body of the pin against the thrust of the spring.
  • This pin head, opposite the pin against has a rounded tip, substantially shaped spherical cap. This shape is particularly well suited for pins that come to face the periphery of the rollers mounted in the axis of the key.
  • the proximal bore formed in the rotor is angularly positioned in the cylinder. extending the distal bore formed in the stator, so that the pin and its associated cotter pin can slide along the bore formed by these two parts together.
  • the pin is pushed into the rotor under the action of the spring resting on the counter-pin, so that, in the rest position, without a key inserted into the cylinder, the counter-pin extends into part in the rotor and partly in the stator, thereby blocking the rotation of the rotor relative to the stator.
  • the pin and the cotter pin are two separable elements, which have one convex contact face 40 complementary to the concave contact face 42 of the other. These faces have a radius of curvature substantially equal to the radius of the rotor.
  • the rotor is thus adapted to rotate inside the stator when the faces of pin and counter-pin contact are positioned at the junction between the rotor and the stator.
  • the movement of the rotor in the stator can be achieved only when all the pins have been placed at the correct height in their radial bore, so that only the pins are in the rotor and that only the counter-pins are in the stator.
  • the langlage acts on the pin mainly by pushing the pin heads to the stator, and thus compressing the spring through the counter-pin.
  • the different pins are pushed by the counter-pins to the bottom of the corresponding impressions, and if the imprint has the right place and the right dimensions, the assembly formed by the pin and the counter-pin s adjusts in radial position so that their facing faces are at the junction between the rotor and the stator, which can freely rotate.
  • Fingerprints of different depths and rollers of different diameters will be made to obtain a unique key that corresponds to the dimensions of the pins arranged uniquely in the lock cylinder.
  • first pins 34 housed in first bores 32, are arranged to be actuated by the first indentations 24 made on one side and that other pins, second pins housed in second bores 35 and not shown on the figure 5 to clarify the reading of this figure, are arranged to be actuated by the second imprints 25 made on an edge.
  • the invention also extends to an embodiment not shown, wherein at least some of the rollers has an annular groove dug around the periphery of the roller.
  • This groove can be advantageously asymmetrical hollow profile like other fingerprints of the key to cooperate better with pins penetrating diagonally in. It is noted that such a groove is fully compatible with the role of rolling guide such a roller to facilitate insertion of the key to its position cooperating with the cylinder. All that is needed for this is that the groove is hollowed out in a central part of the roller leaving on both sides the original cylindrical profile.
  • the lock cylinder comprises a specific series of pins, in which each of the pins is adapted to cooperate with one of the rollers carried by the key described above.
  • the second bores 33 corresponding to this specific series extend along an axis inclined relative to the normal to the axis of rotation of the rollers so as to point on the axis of rotation of the rotor (as visible on the figure 5 ).
  • the pins and cotter pins adapted to slide in these bores can be disposed on either side of the curved junction plane between the rotor and the stator.
  • the arrangement of the lock assembly according to the invention thus makes it possible to dispose in a reduced space of five distinct sets of pins axially aligned, each of these pins pointing to the axis of rotation of the rotor to facilitate the cooperation of the pins and the cylinder for locking and unlocking the rotor and the stator.
  • the set of pins associated with the rollers is arranged in the lower half of the roll, so that four sets of pins can advantageously be concentrated in the upper half of the roll and the number of possible combinations for unlocking the rotor and the roll can be increased.
  • stator in the cylinder for this purpose, the two sets of pins associated with the first impressions made on the faces of the langlage are offset axially with respect to the two sets of pins associated with the second imprints made on the edges of the langlage.
  • a number of rollers mounted on the key at least equivalent to the number of pins arranged in series in the cylinder are specifically provided to be actuated by these rollers.
  • the sizes of the rollers are chosen in correspondence with the shape and the dimension of the pins so that they are correctly retracted when the key is inserted in abutment in the slot of the cylinder, in order to allow rotation of the rotor.
  • the diameter of the rollers is chosen in correspondence with the dimension of the pins.
  • some pins may be arranged to protrude further into the slot than other pins, and these pins are made to be smaller diameter rollers than the others.
  • the fact that each of the rollers is mounted free to rotate about its axis allows easy insertion of the key without abutting the pin heads protruding into the slot.
  • a large-diameter roller radially pushes these pin heads without difficulty until it is in contact with the corresponding one when the key is in abutment in the lock cylinder, and pin heads pushed radially to the passage of the key are replaced in their original position under the effect of the spring when the large diameter roller has passed.
  • the large diameter rollers protruding from either side of the receiver slide in the grooves arranged symmetrically to on both sides of the slot.
  • These grooves are sized to allow the passage of the larger diameter roller, and they serve as a centering means and guide to the insertion of the key.
  • the insert has a cylindrical or spherical shape, rotatably mounted, and this has the advantage of minimizing friction against the pins which protrude into the slot on the passage of the key when inserted into the lock cylinder. .
  • Each roller is arranged to rotate in a direction parallel to the direction of insertion of the host in the lock cylinder which facilitates the movement of the key in the lock cylinder, both insertion and release since the key is free in rotation.
  • This cylindrical or spherical shape further facilitates the design of a reversible key.
  • the fact that the signature of the key is obtained in particular through the combination of reported elements allows a standardization of production of the basic elements of the key while allowing a control of the reproduction of the keys, by the unalterable side of the factory assembly of the rollers in the key, and by the multitude of possible combinations of these elements.

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  • Lock And Its Accessories (AREA)

Abstract

The key has a reception unit (4) axially comprising a window (18) which forms an opening crossing a thickness of the reception unit from a main face (14) to another main face (16) of the reception unit. Rollers (20) are mounted on a fixed axle (22) that is placed transversely to the window in the thickness of the key. The reception unit includes a set of recesses (24, 25) formed in the thickness of the key. One of the recesses is formed on the former face and another recess is formed on an edge of the reception unit between the face and a section (10) of the key. An independent claim is also included for a locking assembly.

Description

La présente invention se situe dans le domaine de la serrurerie de sécurité, dans lequel on recherche à contrôler la reproduction des clés. Dans ce contexte, l'invention concerne une clé de sécurité ainsi qu'un ensemble de serrurerie formé par une telle clé et par un cylindre de serrure avec laquelle la clé est destinée à coopérer.The present invention is in the field of security locksmithing, in which it seeks to control the reproduction of keys. In this context, the invention relates to a security key and a lock assembly formed by such a key and a lock cylinder with which the key is intended to cooperate.

L'ensemble de serrurerie selon l'invention comporte une clé et un cylindre de serrure comportant un rotor et un stator, ainsi qu'un jeu de goupilles et de contre-goupilles permettant par leur positionnement respectif le verrouillage ou le déverrouillage de la rotation du rotor dans le stator.The lock assembly according to the invention comprises a key and a lock cylinder comprising a rotor and a stator, and a set of pins and counter-pins allowing by their respective positioning the locking or unlocking of the rotation of the lock. rotor in the stator.

La clé selon l'invention comporte classiquement une tête de clé et un accueillage adapté à être inséré dans une fente du cylindre de serrure. On utilise de préférence des clés de systèmes à points, dans lequel l'accueillage porte dans son épaisseur des empreintes pour coopérer, lorsque l'accueillage est inséré dans le cylindre de serrure, avec les goupilles du cylindre de serrure. Les goupilles sont disposées dans des alésages agencés radialement dans le cylindre, lesdites goupilles étant mobiles en translation dans leurs alésages respectifs sous l'effet d'un ressort tendant à la pousser vers le centre du cylindre de serrure et dans le sens inverse sous l'effet de la présence de la clé lorsque celle-ci est en place dans son cylindre.The key according to the invention conventionally comprises a key head and a receiver adapted to be inserted into a slot of the lock cylinder. Point system keys are preferably used, in which the receiver carries impressions in its thickness to cooperate, when the receiver is inserted in the lock cylinder, with the pins of the lock cylinder. The pins are arranged in bores arranged radially in the cylinder, said pins being movable in translation in their respective bores under the effect of a spring tending to push it towards the center of the lock cylinder and in the opposite direction under the effect of the presence of the key when it is in place in its cylinder.

Lorsque la clé adéquate est insérée, c'est-à-dire la clé dont les empreintes présentent les bonnes dimensions et sont correctement placées sur l'accueillage, chacune des goupilles pénètre dans l'empreinte qui lui est respectivement associée. Les goupilles sont positionnées dans une position d'ouverture dans laquelle elles permettent la rotation du rotor dans le stator du cylindre et donc l'ouverture de la serrure.When the appropriate key is inserted, that is to say the key whose fingerprints have the right dimensions and are correctly placed on the accueillage, each of the pins enters the footprint associated with it respectively. The pins are positioned in an open position in which they allow rotation of the rotor in the stator of the cylinder and thus the opening of the lock.

La multiplication des empreintes, ainsi que leur positionnement sur les faces des clés notamment rend plus difficile la duplication de ces clés, ce qui favorise la sécurité de l'ensemble de verrouillage.The multiplication of fingerprints, as well as their positioning on the faces of the keys in particular makes it more difficult to duplicate these keys, which promotes the security of the locking assembly.

La présente invention propose des moyens pour réaliser différemment la signature de clés de sécurité. Selon une caractéristique avantageuse de l'invention, l'accueillage de la clé comporte axialement une fenêtre qui forme une ouverture traversant l'épaisseur de l'accueillage d'une face à l'autre, et au moins un galet qui est monté sur un axe disposé transversalement à la fenêtre. Le diamètre du galet est déterminé pour que lorsque la clé est en butée dans la fente du cylindre de serrure, la surface du galet coopère avec l'extrémité d'une goupille disposée radialement dans le cylindre de serrure. On pourra prévoir de disposer dans la fenêtre un ou plusieurs galets disposés successivement les uns après les autres dans l'axe de l'accueillage de la clé, et l'on pourra prévoir que ces différents galets présentent des diamètres distincts. Ainsi, on propose une clé qui devient impossible à reproduire par usinage en duplication, notamment pour ce qui est de la partie de signature qui est déterminée par les galets. Les combinaisons des différents positionnements de galets de diamètres différents apportent de nombreuses possibilités d'obtention d'une signature unique de clé.The present invention proposes means for realizing the signature of security keys differently. According to an advantageous characteristic of the invention, the accueillage of the key comprises axially a window which forms an opening traversing the thickness of the reception from one face to the other, and at least one roller which is mounted on a axis arranged transversely to the window. The diameter of the roller is determined so that when the key is in abutment in the slot of the lock cylinder, the surface of the roller cooperates with the end of a pin arranged radially in the lock cylinder. It may be provided to arrange in the window one or more rollers arranged successively one after the other in the axis of the accueillage of the key, and it can be provided that these different rollers have different diameters. Thus, it is proposed a key that becomes impossible to reproduce by machining in duplication, especially with regard to the signature part which is determined by the rollers. The combinations of different roller positions of different diameters provide many possibilities for obtaining a unique key signature.

Selon une caractéristique de l'invention, le diamètre du galet peut être supérieur à l'épaisseur de l'accueillage de la clé, de sorte que le galet, monté rotatif autour d'un axe disposé fixe dans le plan médian de la clé, dépasse en saillie de part et d'autre des faces de l'accueillage. Ainsi, on propose une clé de sécurité comportant des éléments en saillie des faces de l'accueillage, différents des aménagements connus d'empreintes creusées dans l'accueillage dans le cas de clés de systèmes à points, sans que cela implique pour autant un usinage complexe.According to a characteristic of the invention, the diameter of the roller may be greater than the thickness of the accueillage of the key, so that the roller, rotatably mounted about an axis arranged fixed in the median plane of the key, protrudes beyond the sides of the accueillage. Thus, there is provided a security key comprising elements protruding from the faces of the host, different from known arrangements of cavities dug in the host in the case of dots system keys, without implying for all that a machining complex.

L'utilisation d'un galet comme moyen de coopération avec les goupilles permet de réaliser facilement une clé symétrique, c'est-à-dire une clé dont l'accueillage peut être inséré dans la fente du cylindre de serrure dans n'importe quel sens. Lorsque l'on réalise des empreintes en creusant la face de l'accueillage, il est nécessaire de réaliser des empreintes identiques sur la face opposée, de façon symétrique par rapport à un point de l'axe médian de la clé située à hauteur de cette fente. En utilisant un galet, on peut sans difficulté se plier à cette contrainte de configuration symétrique puisque le galet est positionné centré sur l'axe médian de sorte qu'il présente de part et d'autre de la clé une proéminence identique.The use of a roller as a means of cooperation with the pins makes it possible to easily produce a symmetrical key, that is to say a key whose accueillage can be inserted in the slot of the lock cylinder in any meaning. When making impressions by digging the face of the reception, it is necessary to make identical impressions on the opposite face, symmetrically with respect to a point of the median axis of the key located at this height. slot. By using a roller, one can easily bend to this symmetrical configuration constraint since the roller is positioned centered on the median axis so that it presents on both sides of the key an identical prominence.

Un autre avantage de l'utilisation d'un galet se trouve dans la facilité de coulissement de la clé dans la fente du cylindre de serrure. Le galet est monté libre en rotation autour de son axe, de sorte qu'il favorise le glissement sur les goupilles qui se trouvent sur le chemin de la clé lors de son insertion dans la fente. On comprendra que ce glissement plus facile s'opère aussi bien dans le sens de l'insertion de la clé que dans le sens du retrait de celle-ci.Another advantage of using a roller is in the ease of sliding of the key into the slot of the lock cylinder. The roller is rotatably mounted about its axis, so that it promotes sliding on the pins that are on the path of the key when inserted into the slot. It will be understood that this easier sliding operates as well in the direction of insertion of the key as in the direction of removal thereof.

L'invention propose également un ensemble de serrurerie comportant une clé selon l'invention et un cylindre de serrure comportant un rotor et un stator, ainsi qu'un jeu de goupille et de contre-goupille permettant par leur positionnement respectif le verrouillage ou le déverrouillage de la rotation du rotor dans le stator.The invention also proposes a lock assembly comprising a key according to the invention and a lock cylinder comprising a rotor and a stator, as well as a set of pins and counter-pins allowing their respective positioning to be locked or unlocked. the rotation of the rotor in the stator.

Selon une caractéristique avantageuse de l'invention, des goupilles sont spécialement disposées coulissantes radialement dans le rotor pour correspondre chacune avec un galet de la clé de sécurité lorsque cette clé est dans sa position de butée dans le cylindre de serrure.According to an advantageous characteristic of the invention, pins are specially arranged sliding radially in the rotor to each correspond with a roller of the security key when the key is in its abutment position in the lock cylinder.

Dans un mode de réalisation préférée de l'invention, on pourra prévoir un jeu de galets disposés axialement en série dans la fenêtre réalisée dans l'épaisseur de l'accueillage de la clé, et on prévoit un jeu de goupilles correspondant dans le cylindre de serrure, le nombre de ces goupilles étant équivalent au nombre de galets, et l'espacement entre chaque goupille dans leur arrangement axial étant équivalent à l'espacement entre chacun des galets.In a preferred embodiment of the invention, it is possible to provide a set of rollers arranged axially in series in the window made in the thickness of the keyway, and a corresponding set of pins is provided in the cylinder of FIG. lock, the number of these pins being equivalent to the number of rollers, and the spacing between each pin in their axial arrangement being equivalent to the spacing between each of the rollers.

On comprend que dans le jeu de goupilles, les goupilles seront plus ou moins enfoncées à l'intérieur du rotor selon qu'elles doivent correspondre lorsque la clé est dans sa position de butée avec un galet de plus ou moins grand diamètre.It is understood that in the set of pins, the pins will be more or less embedded inside the rotor as they must match when the key is in its abutment position with a roller of greater or lesser diameter.

La fente réalisée dans le cylindre de serrure pour le passage de la clé comporte deux rainures disposées symétriquement de part et d'autre de la fente pour permettre le passage des galets de plus grand diamètre que l'épaisseur de l'accueillage, et qui s'étendent donc en saillie de cet accueillage. Les deux rainures disposées de part et d'autres de la fente forment ainsi un chemin de guidage dans lequel roulent les périphéries des galets.The slot made in the lock cylinder for the passage of the key has two grooves arranged symmetrically on both sides. other of the slot to allow the passage of the rollers of larger diameter than the thickness of the accueillage, and which thus extend in projection of this accueillage. The two grooves disposed on either side of the slot thus form a guide path in which roll the peripheries of the rollers.

L'invention sera maintenant plus complètement décrite dans le cadre de caractéristiques préférées et de leurs avantages, en faisant référence aux figures 1 à 5 parmi lesquelles :

  • la figure 1 est une vue de face d'une clé selon un mode de réalisation de l'invention, qui comporte quatre galets disposés axialement dans une fenêtre aménagée au centre de l'accueillage de la clé;
  • la figure 2 est une vue de dessous de la clé de la figure 1;
  • la figure 3 est une représentation schématique de principe illustrant la coopération d'une clé selon l'invention avec un cylindre de sécurité associé, ce cylindre étant représenté partiellement ;
  • la figure 4 est une vue en coupe de l'ensemble formé par la clé et le cylindre illustré sur la figure 3, dans le plan défini par l'axe de la clé et par la perpendiculaire aux galets de la clé ;
  • et la figure 5 est une vue en coupe du cylindre de sécurité et de la clé associée selon la ligne de coupe représentée sur la figure 3, de manière à apercevoir dans une même figure la disposition angulaire avantageuse des goupilles logées dans le cylindre et décalées axialement.
The invention will now be more fully described in the context of preferred features and their advantages, with reference to Figures 1 to 5 among :
  • the figure 1 is a front view of a key according to one embodiment of the invention, which comprises four rollers axially disposed in a window arranged in the center of the accueillage of the key;
  • the figure 2 is a bottom view of the key to the figure 1 ;
  • the figure 3 is a schematic representation of principle illustrating the cooperation of a key according to the invention with an associated safety cylinder, this cylinder being partially represented;
  • the figure 4 is a sectional view of the assembly formed by the key and the cylinder illustrated on the figure 3 , in the plane defined by the axis of the key and by the perpendicular to the rollers of the key;
  • and the figure 5 is a sectional view of the safety cylinder and the associated key according to the section line shown in FIG. figure 3 , so as to see in the same figure the advantageous angular arrangement of the pins housed in the cylinder and axially offset.

Tel qu'illustré sur la figure 1, la clé comporte une tête de clé 2, visible en partie, et un accueillage 4 adapté à être inséré dans un cylindre de serrure. Un col intermédiaire 6 est formé entre la tête et l'accueillage et il présente à sa jonction avec l'accueillage deux épaulements formant butée pour l'arrêt en position de la clé lorsqu'elle est insérée dans le cylindre de serrure.As illustrated on the figure 1 , the key comprises a key head 2, visible in part, and a host 4 adapted to be inserted into a lock cylinder. An intermediate neck 6 is formed between the head and the accueillage and has at its junction with the reception two shoulders forming a stop for stopping in position of the key when it is inserted into the lock cylinder.

L'accueillage 4 présente une forme plate, ici de section rectangulaire, et elle comporte une extrémité avant libre 8 disposée axialement à l'opposé du col, ici taillée en pointe. L'accueillage comporte deux tranches 10 et 12 et deux faces principales 14 et 16.The reception 4 has a flat shape, here of rectangular section, and it has a free front end 8 arranged axially opposite the neck, here cut to a point. The reception comprises two slices 10 and 12 and two main faces 14 and 16.

Selon l'invention, l'accueillage comporte une fenêtre 18 qui forme une ouverture traversant la clé d'une face à l'autre et s'étendant axialement le long de l'accueillage de manière centrée, c'est-à-dire à équidistance des tranches. On comprend que dans cet agencement, l'axe médian de la fenêtre est confondu avec l'axe médian de l'accueillage.According to the invention, the reception comprises a window 18 which forms an opening passing through the key from one face to the other and extending axially along the accueillage in a centered manner, that is to say at equidistance of the slices. It is understood that in this arrangement, the median axis of the window coincides with the median axis of the accueillage.

Des galets 20 sont disposés dans la fenêtre. Ils sont montés autour d'un axe 22 disposé transversalement à la fenêtre. Ils sont dans l'exemple illustré au nombre de quatre, disposés successivement le long de la fenêtre.Rollers 20 are arranged in the window. They are mounted around an axis 22 disposed transversely to the window. They are in the example illustrated in number of four, arranged successively along the window.

Chacun des axes de rotation est monté dans un trou borgne, qui s'étend transversalement depuis l'une des tranches de l'accueillage à équidistance des deux faces. L'axe de rotation est enfilé dans le trou borgne par cette tranche, jusqu'à se trouver en butée au fond du trou borgne. Celui-ci présente une profondeur telle que le fond du trou borgne est situé transversalement au-delà de la fenêtre, de telle sorte que l'axe enfilé dans ce trou traverse la fenêtre.Each of the axes of rotation is mounted in a blind hole, which extends transversely from one of the slices of equidistant reception of the two faces. The axis of rotation is threaded into the blind hole by this slice, until it is in abutment at the bottom of the blind hole. This has a depth such that the bottom of the blind hole is located transversely beyond the window, so that the axis threaded into this hole through the window.

Dans un mode de réalisation, chaque galet est monté libre en rotation autour de son axe qui est disposé transversalement à l'axe médian de l'accueillage, de telle sorte que chaque galet est adapté à tourner dans une direction parallèle à cet axe médian de l'accueillage, qui correspond à la direction d'insertion de l'accueillage dans le cylindre de serrure. Tel que cela sera décrit ci-après, cela facilite ainsi l'insertion et le dégagement de la clé par rapport au cylindre de serrure. On comprend toutefois que la clé selon l'invention peut comporter des galets bloqués en rotation sur leur axe respectif. Le galet prend ici la forme d'un rouleau en cylindre droit, étant entendu qu'il pourra en variante prendre d'autres formes dès lors qu'il remplit son rôle de coopération avec la goupille associée du cylindre de serrure, et qu'il permet le passage des goupilles lors de l'insertion de la clé. La forme cylindrique droite est la plus adaptée pour coopérer avec l'extrémité des goupilles lorsque celles-ci sont orientées radialement dans le rotor, en biais par rapport à la génératrice du pourtour cylindrique du galet.In one embodiment, each roller is rotatably mounted about its axis which is arranged transversely to the median axis of the accueillage, so that each roller is adapted to rotate in a direction parallel to this median axis of the accueillage, which corresponds to the direction of insertion of the accueillage in the lock cylinder. As will be described below, this facilitates the insertion and release of the key relative to the lock cylinder. However, it is understood that the key according to the invention may comprise rollers locked in rotation on their respective axis. The roller here takes the form of a roller in the right cylinder, it being understood that it may alternatively take other forms as soon as it fulfills its role of cooperation with the associated pin of the lock cylinder, and that allows the passage of the pins during the insertion of the key. The right cylindrical shape is the most adapted to cooperate with the end of the pins when they are oriented radially in the rotor, obliquely to the generatrix of the cylindrical periphery of the roller.

Les galets peuvent être de diamètres différents. Selon leurs diamètres, les galets dépassent ou non de part et d'autre de l'accueillage. Ainsi, le galet dépasse de l'accueillage lorsque son diamètre est supérieur à l'épaisseur de l'accueillage, alors qu'il est entièrement contenu dans l'épaisseur de l'accueillage lorsque son diamètre est inférieur à celui de l'accueillage. On comprend que puisque l'axe de rotation est enfilé dans un trou borgne qui s'étend à équidistance des faces de l'accueillage, le galet dépasse de la même distance par rapport à chacune des faces de l'accueillage.The rollers may be of different diameters. According to their diameters, the rollers exceed or not on both sides of the accueillage. Thus, the roller exceeds the accueillage when its diameter is greater than the thickness of the accueillage, while it is entirely contained in the thickness of the accueillage when its diameter is smaller than that of the accueillage. It is understood that since the axis of rotation is threaded into a blind hole which extends equidistant from the faces of the accueillage, the roller exceeds the same distance relative to each of the faces of the accueillage.

Dans l'exemple illustré, et tel que cela est visible sur la figure 2, l'entraxe entre deux galets voisins reste le même tout le long de la fenêtre. On comprend que sans sortir du contexte de l'invention, les valeurs de ces entraxes peuvent être distinctes. On a ainsi référencé sur la figure 2 les entraxes respectivement d1, d2 et d3 et on comprend qu'ils peuvent prendre une valeur arbitraire choisie par le serrurier, dès lors que ces valeurs permettent d'assurer que deux galets puissent être disposés côte à côte sans se toucher, quels que soient leurs diamètres.In the illustrated example, and as it is visible on the figure 2 , the distance between two adjacent pebbles remains the same all along the window. It is understood that without departing from the context of the invention, the values of these distances may be distinct. We have referenced on the figure 2 the distances between d1, d2 and d3 respectively and it is understood that they can take an arbitrary value chosen by the locksmith, since these values make it possible to ensure that two rollers can be arranged side by side without touching each other, whatever their diameters.

Le nombre de galets, ici égale à quatre, peut varier et ce nombre variable, combiné aux différentes tailles disponibles de chacun d'entre eux, génère une multiplicité de combinaisons possibles, ce qui offre un grand choix de signature de ce type de clé.The number of rollers, here equal to four, can vary and this variable number, combined with the different available sizes of each of them, generates a multiplicity of possible combinations, which offers a large choice of signature of this type of key.

L'accueillage peut également comporter des empreintes réalisées dans l'épaisseur de l'accueillage, de manière à former des dépressions de différentes dimensions et profondeur, tel que cela peut être connu dans les réalisations antérieures. Selon l'invention, on prévoit avantageusement que ces empreintes (dont certaines ont été illustrées à titre d'exemple sur les figures 1, 3 ou 5) comportent des premières empreintes 24 creusées plus ou moins profondément par rapport au plan des faces de l'accueillage, et des deuxièmes empreintes 25 réalisées par érosion des arêtes formées entre une face et une tranche de la clé. Dans le cas particulier décrit, et ce même si la figure 3 n'illustre que les empreintes réalisées d'un côté de la clé par rapport au galets, les empreintes sont distribuées de façon symétrique par rapport à l'axe médian de la clé passant par le centre des galets de manière à offrir une réversibilité de la clé, c'est-à-dire de permettre l'insertion de l'accueillage de la clé indifféremment dans un sens ou dans l'autre. On comprend que ces empreintes sont positionnées de manière à prendre en considération la présence de la fenêtre sur les faces et la présence des trous borgnes sur les tranches.The reception may also include impressions made in the thickness of the accueillage, so as to form depressions of different dimensions and depth, as may be known in previous achievements. According to the invention, these fingerprints are advantageously provided (some of which have been illustrated by way of example on figures 1 , 3 or 5 ) comprise first indentations 24 dug more or less deep relative to the plane of the faces of the accueillage, and second indentations 25 made by erosion of the edges formed between a face and a slice of the key. In the particular case described, even if the figure 3 only illustrates the fingerprints made on one side of the key relative to the rollers, the imprints are distributed symmetrically with respect to the central axis of the key passing through the center of the rollers so as to provide a reversibility of the key is that is to say to allow the insertion of the accueillage of the key indifferently in one direction or in the other. It is understood that these fingerprints are positioned to take into consideration the presence of the window on the faces and the presence of the blind holes on the slices.

Les deuxièmes empreintes 25 disposées sur les arêtes sont décalées axialement par rapport aux trous borgnes associés aux galets de manière à ne pas interférer avec les axes logés dans ces trous.The second indentations disposed on the edges are offset axially relative to the blind holes associated with the rollers so as not to interfere with the axes housed in these holes.

On va maintenant décrire un procédé de fabrication d'une clé telle qu'elle vient d'être décrite précédemment. Ce procédé comporte trois étapes successives distinctives, à savoir une première étape d'usinage dans laquelle on cherche à obtenir les éléments de base de la clé, une seconde étape de montage dans laquelle on crée la signature de la clé suivant l'invention, spécifique en ce qu'elle correspond à un cylindre de serrure, en assemblant dans une configuration donnée les différents composants de la clé spécifique, et une dernière étape d'usinage dans laquelle on réalise des opérations complémentaires de formation d'empreintes sur l'accueillage.We will now describe a method of manufacturing a key as just described above. This method comprises three distinctive successive steps, namely a first machining step in which one seeks to obtain the basic elements of the key, a second assembly step in which the signature of the key according to the invention is created, specific in that it corresponds to a lock cylinder, by assembling in a given configuration the different components of the specific key, and a last machining step in which additional fingerprinting operations are performed on the receiver.

La première étape consiste en l'usinage sur la clé de la fenêtre et des trous borgnes. Il en résulte un modèle standard de clé, différent des clés classiques par la présence notamment de la fenêtre, mais qui pourra être utilisé pour différents modèles de clés selon l'invention.The first step is machining on the key of the window and blind holes. This results in a standard key model, different from conventional keys by the presence of the particular window, but which can be used for different key models according to the invention.

Lors de cette première étape, on fabrique également les axes, adaptés à être enfilés dans les trous borgnes lors du montage, et chacun des axes est usiné de manière standard, pour présenter un diamètre et une longueur donnée. Enfin, on fabrique des galets, qui présentent eux des diamètres différents pour s'adapter aux besoins spécifiques pour chacune des clés.In this first step, the axes are also manufactured, adapted to be threaded into the blind holes during assembly, and each of the axes is machined in a standard manner, to have a diameter and a given length. Finally, we make rollers, which have different diameters to adapt to the specific needs for each key.

La variure de la clé est obtenue dans la deuxième étape par le montage d'au moins un galet de diamètre spécifique dans la fenêtre. Le nombre de galets, leurs diamètres respectifs, leur écartement et leur agencement d'une extrémité à l'autre de la fenêtre offre une multitude de signatures possibles qui confère à la clé son authenticité et sa traçabilité.The variure of the key is obtained in the second step by mounting at least one roller of specific diameter in the window. The number of rollers, their respective diameters, their spacing and their arrangement from one end to the other of the window offers a multitude of possible signatures that gives the key its authenticity and traceability.

Pour chacun des galets à monter, on maintient en place le galet dans la fenêtre au niveau de l'un des trous borgnes tout en enfilant un axe de rotation dans ce trou borgne pour que cet axe passe dans l'alésage du galet. Lorsque l'axe est en butée contre le fond du trou borgne, on bloque la position de l'axe en écrasant le bord du trou borgne récepteur de l'axe pour réduire le diamètre d'ouverture du trou et immobiliser l'axe. Cette fixation par écrasement des bords a l'avantage dans le cas considéré d'interdire tout démontage ultérieur de la clé.For each of the rollers to be mounted, the roller is held in place in the window at one of the blind holes while threading an axis of rotation in the blind hole so that this axis passes into the bore of the roller. When the axis is in abutment against the bottom of the blind hole, it blocks the position of the axis by crushing the edge of the blind hole receiving the axis to reduce the opening diameter of the hole and immobilize the axis. This attachment crushing edges has the advantage in the case considered to prohibit any subsequent disassembly of the key.

La signature, qui est propre à cette clé et qui la rend unique, et qui participe donc à la sécurité de l'ensemble de serrurerie dont elle fait partie, est en outre obtenue par l'usinage d'empreintes dans la troisième étape. Selon l'invention, on réalise l'usinage de ces empreintes après avoir réalisé la fenêtre et les trous pour former les empreintes autour. Le schéma de positionnement de ces empreintes est propre à la clé, et il correspond à une disposition spécifique des éléments coopérants que comporte le cylindre de serrure à laquelle la clé correspond.The signature, which is unique to this key and which makes it unique, and which thus contributes to the security of the lock assembly of which it forms part, is furthermore obtained by machining impressions in the third step. According to the invention, machining of these fingerprints after making the window and holes to form the footprints around. The positioning scheme of these fingerprints is specific to the key, and it corresponds to a specific arrangement of the cooperating elements that comprises the lock cylinder to which the key corresponds.

Une pluralité de premières empreintes est réalisée sur les faces autour de la fenêtre et une pluralité de deuxièmes empreintes est réalisée sur les arêtes. On décale axialement les premières et les deuxièmes empreintes pour permettre la disposition des goupilles correspondantes dans le cylindre. L'ensemble de ces empreintes et l'interchangeabilité des galets permet d'obtenir un grand nombre de signatures possibles.A plurality of first impressions is made on the faces around the window and a plurality of second impressions is made on the edges. The first and second indentations are axially offset to allow the arrangement of the corresponding pins in the cylinder. All of these impressions and the interchangeability of the rollers makes it possible to obtain a large number of possible signatures.

Tel qu'illustré sur les figures 3 à 5, une clé selon l'invention est prévue pour coopérer avec un cylindre de serrure 26 spécifique notamment en ce qu'il comporte une série de goupilles adaptées à coopérer avec la série de galets.As illustrated on Figures 3 to 5 a key according to the invention is provided to cooperate with a specific lock cylinder 26 in particular that it comprises a series of pins adapted to cooperate with the series of rollers.

Le cylindre comporte un rotor 28 adapté à tourner à l'intérieur d'un stator 30. Le rotor présente une fente 45 dans laquelle la clé est adaptée à être insérée. Cette fente présente deux rainures 46, disposées symétriquement de part et d'autre de la fente, sensiblement au centre de celle-ci. La fente est par ailleurs décalée par rapport à l'axe du cylindre sur un diamètre du cylindre, comme cela est visible sur la figure 3.The cylinder comprises a rotor 28 adapted to rotate inside a stator 30. The rotor has a slot 45 in which the key is adapted to be inserted. This slot has two grooves 46, arranged symmetrically on both sides of the slot, substantially in the center thereof. The slot is also offset with respect to the axis of the cylinder on a diameter of the cylinder, as can be seen on the figure 3 .

Des premiers alésages 32 sont réalisés dans le cylindre, en s'étendant radialement depuis l'extérieur du stator vers la fente du rotor, en comportant deux parties respectivement usinées dans le rotor et dans le stator. Un ensemble formé par une goupille 34 et par une contre-goupille 36, indépendantes l'une de l'autre, est installé dans chacun des alésages radiaux, poussé vers l'intérieur du cylindre par un ressort 38, en appui sur la contre-goupille. Le premier alésage comporte en son fond un épaulement qui laisse passage à une tête de goupille pour que celle-ci puisse entrer en contact avec la clé et qui forme butée pour le corps de la goupille, contre la poussée du ressort. Cette tête de goupille, à l'opposé de la contre-goupille, présente un bout arrondi, sensiblement en forme de calotte sphérique. Cette forme est particulièrement bien adaptée pour les goupilles qui viennent se placer face au pourtour des galets montés dans l'axe de la clé.First bores 32 are made in the cylinder, extending radially from outside the stator to the slot of the rotor, having two parts respectively machined in the rotor and in the stator. An assembly formed by a pin 34 and a counter-pin 36, independent of each other, is installed in each of the radial bores, pushed towards the inside of the cylinder by a spring 38, resting on the counterbore. pin. The first bore has at its bottom a shoulder that allows passage to a pin head so that it can come into contact with the key and which forms a stop for the body of the pin against the thrust of the spring. This pin head, opposite the pin against, has a rounded tip, substantially shaped spherical cap. This shape is particularly well suited for pins that come to face the periphery of the rollers mounted in the axis of the key.

Dans la position de repos du cylindre, c'est-à-dire dans la position qu'il prend naturellement lorsque la clé n'est pas insérée dans le cylindre de serrure, l'alésage proximal formé dans le rotor est positionné angulairement dans le prolongement de l'alésage distal formé dans le stator, de sorte que la goupille et sa contre-goupille associée peuvent glisser le long de l'alésage formé par ces deux parties réunies. En outre, la goupille est poussée dans le rotor sous l'action du ressort en appui sur la contre-goupille, de telle sorte que, dans la position de repos, sans clé introduite dans le cylindre, la contre-goupille s'étend en partie dans le rotor et en partie dans le stator, bloquant ainsi la rotation du rotor par rapport au stator.In the rest position of the cylinder, that is to say in the position it naturally takes when the key is not inserted into the lock cylinder, the proximal bore formed in the rotor is angularly positioned in the cylinder. extending the distal bore formed in the stator, so that the pin and its associated cotter pin can slide along the bore formed by these two parts together. In addition, the pin is pushed into the rotor under the action of the spring resting on the counter-pin, so that, in the rest position, without a key inserted into the cylinder, the counter-pin extends into part in the rotor and partly in the stator, thereby blocking the rotation of the rotor relative to the stator.

Tel qu'illustré, la goupille et la contre-goupille sont deux éléments dissociables, qui présentent l'un une face de contact convexe 40 complémentaire de la face de contact concave 42 de l'autre. Ces faces ont un rayon de courbure sensiblement égal au rayon du rotor. Le rotor est ainsi adapté à tourner à l'intérieur du stator lorsque les faces de contact de la goupille et de la contre-goupille sont positionnées au niveau de la jonction entre le rotor et le stator.As illustrated, the pin and the cotter pin are two separable elements, which have one convex contact face 40 complementary to the concave contact face 42 of the other. These faces have a radius of curvature substantially equal to the radius of the rotor. The rotor is thus adapted to rotate inside the stator when the faces of pin and counter-pin contact are positioned at the junction between the rotor and the stator.

On comprend que le mouvement du rotor dans le stator ne pourra être réalisé que lorsque l'on aura placé l'ensemble des goupilles à la bonne hauteur dans leur alésage radial, de manière à ce que seules les goupilles soient dans le rotor et que seules les contre-goupilles soient dans le stator.It is understood that the movement of the rotor in the stator can be achieved only when all the pins have been placed at the correct height in their radial bore, so that only the pins are in the rotor and that only the counter-pins are in the stator.

Pour ce faire, il convient d'utiliser la bonne clé, c'est-à-dire celle qui présente les empreintes et les galets de bonnes dimensions et correctement placées sur l'accueillage, et de l'engager de façon correcte jusqu'à butée du col 6 contre le cylindre.To do this, use the correct key, that is to say the one that has the imprints and the rollers of good dimensions and correctly placed on the accueillage, and to engage it in a correct way until stop collar 6 against the cylinder.

Lors de l'insertion, l'accueillage agit sur la goupille principalement en repoussant les têtes de goupilles vers le stator, et donc en comprimant le ressort par l'intermédiaire de la contre-goupille. Lorsque la clé est en place, les différentes goupilles sont poussées par les contre-goupilles au fond des empreintes correspondantes, et si l'empreinte présente la bonne place et les bonnes dimensions, l'ensemble formé par la goupille et la contre-goupille s'ajuste en position radiale de manière à ce que leurs faces en regard se situent au niveau de la jonction entre le rotor et le stator, qui peuvent librement tourner.During insertion, the accueillage acts on the pin mainly by pushing the pin heads to the stator, and thus compressing the spring through the counter-pin. When the key is in place, the different pins are pushed by the counter-pins to the bottom of the corresponding impressions, and if the imprint has the right place and the right dimensions, the assembly formed by the pin and the counter-pin s adjusts in radial position so that their facing faces are at the junction between the rotor and the stator, which can freely rotate.

On réalisera des empreintes de différentes profondeurs et des galets de différents diamètres pour obtenir une clé unique qui corresponde aux dimensions des goupilles disposées de façon unique dans le cylindre de serrure.Fingerprints of different depths and rollers of different diameters will be made to obtain a unique key that corresponds to the dimensions of the pins arranged uniquely in the lock cylinder.

On observe que des premières goupilles 34, logées dans des premiers alésages 32, sont disposées pour être actionnées par les premières empreintes 24 réalisées sur une des faces et que d'autres goupilles, des deuxièmes goupilles logées dans des deuxièmes alésages 35 et non représentées sur la figure 5 pour clarifier la lecture de cette figure, sont disposées pour être actionnées par les deuxièmes empreintes 25 réalisées sur une arête.It is observed that first pins 34, housed in first bores 32, are arranged to be actuated by the first indentations 24 made on one side and that other pins, second pins housed in second bores 35 and not shown on the figure 5 to clarify the reading of this figure, are arranged to be actuated by the second imprints 25 made on an edge.

A titre d'exemple sur la figure 3, et ce uniquement pour les goupilles associées aux empreintes réalisées sur une face de l'accueillage afin de faciliter la lecture de la figure, on a représenté en pointillés la forme des empreintes qui permettraient l'ouverture de la serrure et en trait plein la forme réelle de la clé. Tel qu'illustré, selon qu'une empreinte est trop profonde ou qu'elle est absente à l'endroit prévu, l'ensemble formé par une goupille et une contre-goupille est plus ou moins enfoncé dans l'alésage et la goupille ou la contre-goupille bloque alors la rotation du rotor.As an example on the figure 3 , and only for the pins associated with fingerprints made on one side of the accueillage to facilitate the reading of the figure, it is shown in dashed form of fingerprints that would allow the opening of the lock and solid line form real key. As illustrated, depending on whether an impression is too deep or missing at the intended location, the pin and counter-pin assembly is more or less depressed into the bore and pin or the counter-pin then blocks the rotation of the rotor.

L'invention s'étend également à un mode de réalisation non représenté, dans lequel au moins certains des galets présente une gorge annulaire creusée autour de la périphérie du galet. Cette gorge peut être avantageusement à profil creusé dissymétrique comme les autres empreintes de la clé pour coopérer au mieux avec des goupilles pénétrant en biais dedans. On note qu'une telle gorge est parfaitement compatible avec le rôle de guidage roulant d'un tel galet pour faciliter l'insertion de la clé jusqu'à sa position coopérant avec le cylindre. Il suffit pour cela que la gorge soit creusée dans une partie centrale du galet en laissant de part et d'autre le profil cylindrique d'origine.The invention also extends to an embodiment not shown, wherein at least some of the rollers has an annular groove dug around the periphery of the roller. This groove can be advantageously asymmetrical hollow profile like other fingerprints of the key to cooperate better with pins penetrating diagonally in. It is noted that such a groove is fully compatible with the role of rolling guide such a roller to facilitate insertion of the key to its position cooperating with the cylinder. All that is needed for this is that the groove is hollowed out in a central part of the roller leaving on both sides the original cylindrical profile.

Selon l'invention, le cylindre de serrure comporte une série de goupilles spécifique, dans laquelle chacune des goupilles est adaptée à coopérer avec l'un des galets portés par la clé décrite précédemment. Les deuxièmes alésages 33 correspondant à cette série spécifique s'étendent selon un axe incliné par rapport à la normale à l'axe de rotation des galets de manière à pointer sur l'axe de rotation du rotor (tel que cela est visible sur la figure 5). De la sorte, les goupilles et contre-goupilles adaptées à coulisser dans ces alésages peuvent être disposées de part et d'autre du plan de jonction courbe entre le rotor et le stator. Pour la détermination de la bonne inclinaison des deuxièmes alésages 33, on tient en outre compte du fait que la goupille puisse être en contact avec le galet quel que soit le diamètre de celui-ci.According to the invention, the lock cylinder comprises a specific series of pins, in which each of the pins is adapted to cooperate with one of the rollers carried by the key described above. The second bores 33 corresponding to this specific series extend along an axis inclined relative to the normal to the axis of rotation of the rollers so as to point on the axis of rotation of the rotor (as visible on the figure 5 ). In this way, the pins and cotter pins adapted to slide in these bores can be disposed on either side of the curved junction plane between the rotor and the stator. For the determination of the good inclination of the second bores 33, it is furthermore taken into account that the pin can be in contact with the roller regardless of the diameter thereof.

L'agencement de l'ensemble de serrurerie selon l'invention permet ainsi de disposer dans un espace réduit de cinq jeux distincts de goupilles alignées axialement, chacune de ces goupilles pointant sur l'axe de rotation du rotor pour faciliter la coopération des goupilles et du cylindre pour le verrouillage et le déverrouillage du rotor et du stator. Le jeu de goupilles associées aux galets est agencé dans la moitié inférieure du cylindre, de manière à ce qu'on puisse concentrer avantageusement quatre jeux de goupilles dans la moitié supérieure du cylindre et augmenter le nombre de combinaisons possibles pour le déverrouillage du rotor et du stator dans le cylindre. A cet effet, les deux jeux de goupilles associées aux premières empreintes réalisées sur les faces de l'accueillage sont décalés axialement par rapport aux deux jeux de goupilles associées aux deuxièmes empreintes réalisées sur les arêtes de l'accueillage.The arrangement of the lock assembly according to the invention thus makes it possible to dispose in a reduced space of five distinct sets of pins axially aligned, each of these pins pointing to the axis of rotation of the rotor to facilitate the cooperation of the pins and the cylinder for locking and unlocking the rotor and the stator. The set of pins associated with the rollers is arranged in the lower half of the roll, so that four sets of pins can advantageously be concentrated in the upper half of the roll and the number of possible combinations for unlocking the rotor and the roll can be increased. stator in the cylinder. For this purpose, the two sets of pins associated with the first impressions made on the faces of the accueillage are offset axially with respect to the two sets of pins associated with the second imprints made on the edges of the accueillage.

Tel que cela est visible sur les figures 4 et 5, on prévoit un nombre de galets montés sur la clé au moins équivalent au nombre de goupilles disposées en série dans le cylindre spécifiquement pour être actionnées par ces galets. Les tailles des galets sont choisies en correspondance avec la forme et la dimension des goupilles pour que celles-ci soient correctement escamotées lorsque la clé est introduite en butée dans la fente du cylindre, afin de permettre la rotation du rotor.As it is visible on the figures 4 and 5 , a number of rollers mounted on the key at least equivalent to the number of pins arranged in series in the cylinder are specifically provided to be actuated by these rollers. The sizes of the rollers are chosen in correspondence with the shape and the dimension of the pins so that they are correctly retracted when the key is inserted in abutment in the slot of the cylinder, in order to allow rotation of the rotor.

On comprend que le diamètre des galets est choisi en correspondance avec la dimension des goupilles. En position de repos du cylindre de serrure, certaines goupilles peuvent être agencées de manière à dépasser plus loin dans la fente que d'autres goupilles, et on fait correspondre à ces goupilles des galets au diamètre plus petit que les autres. Avantageusement, le fait que chacun des galets soit monté libre en rotation autour de son axe permet l'insertion facile de la clé sans buter sur les têtes de goupille dépassant dans la fente. Un galet de grand diamètre repousse radialement ces têtes de goupilles sans difficulté jusqu'à être au contact de celle qui lui correspond lorsque la clé est en butée dans le cylindre de serrure, et les têtes de goupille repoussées radialement au passage de la clé se replacent dans leur position d'origine sous l'effet du ressort lorsque le galet de grand diamètre est passé.It is understood that the diameter of the rollers is chosen in correspondence with the dimension of the pins. In the rest position of the lock cylinder, some pins may be arranged to protrude further into the slot than other pins, and these pins are made to be smaller diameter rollers than the others. Advantageously, the fact that each of the rollers is mounted free to rotate about its axis allows easy insertion of the key without abutting the pin heads protruding into the slot. A large-diameter roller radially pushes these pin heads without difficulty until it is in contact with the corresponding one when the key is in abutment in the lock cylinder, and pin heads pushed radially to the passage of the key are replaced in their original position under the effect of the spring when the large diameter roller has passed.

Lors de l'insertion de la clé dans la fente du cylindre de serrure, les galets de grand diamètre qui dépassent de part et d'autre de l'accueillage coulissent dans les rainures disposées symétriquement de part et d'autre de la fente. Ces rainures sont dimensionnées pour permettre le passage du galet de plus grand diamètre, et elles servent de moyen de centrage et de guidage à l'insertion de la clé.When inserting the key in the slot of the lock cylinder, the large diameter rollers protruding from either side of the receiver slide in the grooves arranged symmetrically to on both sides of the slot. These grooves are sized to allow the passage of the larger diameter roller, and they serve as a centering means and guide to the insertion of the key.

La description qui précède explique clairement comment l'invention permet d'atteindre les objectifs qu'elle s'est fixés et notamment des objectifs de sécurité en proposant une clé dont la duplication est impossible sans la possession d'une ébauche de clé avec les galets. On s'inscrit ici dans un contexte de clé de sécurité où l'on vise à donner une signature à la clé. Selon l'invention, cette signature est obtenue par un élément rapporté qui peut former selon les cas reliefs ou creux, là où les clés antérieures tendent uniquement à varier les profondeurs des creux. La disposition en saillie de l'accueillage de certains de ces éléments rapportés permet en outre un guidage de la clé lors de son insertion dans le cylindre de serrure. L'élément rapporté présente une forme cylindrique ou sphérique, monté en rotation, et cela présente l'avantage de minimiser les frottements contre les goupilles qui sont en saillie dans la fente sur le passage de la clé lors de son insertion dans le cylindre de serrure. Chaque galet est agencé pour pouvoir tourner dans une direction parallèle à la direction d'insertion de l'accueillage dans le cylindre de serrure ce qui facilite les mouvements de la clé dans le cylindre de serrure, aussi bien à l'insertion qu'au dégagement puisque la clé est libre en rotation. Cette forme cylindrique ou sphérique facilite de plus la conception d'une clé réversible.The foregoing description clearly explains how the invention makes it possible to achieve the objectives that it has set itself and in particular safety objectives by proposing a key whose duplication is impossible without the possession of a key blank with the rollers. . Here we enter a security key context where we aim to give a signature to the key. According to the invention, this signature is obtained by an added element which can form reliefs or hollow cases, where the prior keys tend only to vary the depths of the hollows. The projecting arrangement of the accueillage of some of these added elements also allows a guide of the key during its insertion into the lock cylinder. The insert has a cylindrical or spherical shape, rotatably mounted, and this has the advantage of minimizing friction against the pins which protrude into the slot on the passage of the key when inserted into the lock cylinder. . Each roller is arranged to rotate in a direction parallel to the direction of insertion of the host in the lock cylinder which facilitates the movement of the key in the lock cylinder, both insertion and release since the key is free in rotation. This cylindrical or spherical shape further facilitates the design of a reversible key.

En outre, le fait que la signature de la clé soit obtenue notamment grâce à la combinaison d'éléments rapportés permet une standardisation de production des éléments de base de la clé tout en permettant un contrôle de la reproduction des clés, par le côté inaltérable de l'assemblage en usine des galets dans la clé, et par la multitude de combinaisons possibles de ces éléments.In addition, the fact that the signature of the key is obtained in particular through the combination of reported elements allows a standardization of production of the basic elements of the key while allowing a control of the reproduction of the keys, by the unalterable side of the factory assembly of the rollers in the key, and by the multitude of possible combinations of these elements.

Claims (11)

Clé de serrurerie dont l'accueillage (4) comporte d'une part axialement une fenêtre (18) qui forme une ouverture traversant l'épaisseur de l'accueillage d'une face à l'autre et dans laquelle au moins un galet (20) est monté sur un axe fixe (22) disposé transversalement à la fenêtre dans l'épaisseur de la clé, et d'autre part une pluralités d'empreintes (24, 25) réalisées dans l'épaisseur de la clé.Key locksmith whose accueillage (4) comprises on the one hand axially a window (18) which forms an opening through the thickness of the accueillage from one face to the other and in which at least one roller (20 ) is mounted on a fixed axis (22) disposed transversely to the window in the thickness of the key, and on the other hand a plurality of impressions (24, 25) made in the thickness of the key. Clé selon la revendication 1, caractérisée en ce que les empreintes comportent au moins une première empreinte (24) réalisée sur une face de l'accueillage et au moins une deuxième empreinte (25) réalisée sur une arête de l'accueillage entre ladite face et la tranche de clé.Key according to claim 1, characterized in that the indentations comprise at least a first indentation (24) made on one face of the accueillage and at least one second indentation (25) made on an edge of the reception between said face and the key slice. Clé selon la revendication 1 ou 2, caractérisée en ce que plusieurs galets (20) sont disposés successivement les uns après les autres dans la fenêtre (18), dans l'axe de l'accueillage (4) de la clé.Key according to claim 1 or 2, characterized in that several rollers (20) are successively arranged one after the other in the window (18), in the axis of the accueillage (4) of the key. Clé selon la revendication 3, caractérisée en ce que lesdits galets (20) présentent des diamètres distincts.Key according to claim 3, characterized in that said rollers (20) have different diameters. Clé selon la revendication 4, caractérisée en ce que le diamètre du galet (20) est supérieur à l'épaisseur de l'accueillage (4), de sorte que le galet, monté par rotation autour d'un axe (22) disposé dans le plan médian de la clé, dépasse en saillie de part et d'autre des faces (14, 16) de l'accueillage.Key according to claim 4, characterized in that the diameter of the roller (20) is greater than the thickness of the accueillage (4), so that the roller, mounted by rotation about an axis (22) arranged in the median plane of the key protrudes projecting from both sides (14, 16) of the accueillage. Ensemble de serrurerie comportant une clé selon l'une des revendications 1 à 5 et un cylindre de serrure (26) comportant un rotor (28) et un stator (30), ainsi qu'un jeu de goupille (34) et de contre-goupille (36) permettant par leur positionnement respectif le verrouillage ou le déverrouillage de la rotation du rotor dans le stator, caractérisé en ce qu'une goupille est spécialement disposée coulissante radialement dans le rotor pour correspondre avec un galet (20) lorsque la clé est insérée dans le cylindre de serrure.Locksmith assembly comprising a wrench according to one of claims 1 to 5 and a lock cylinder (26) having a rotor (28) and a stator (30) and a set of pins (34) and counter pin (36) for positioning respective locking or unlocking of rotation of the rotor in the stator, characterized in that a pin is specially arranged to slide radially in the rotor to correspond with a roller (20) when the key is inserted into the lock cylinder. Ensemble de serrurerie selon la revendication 6, caractérisée en ce que le diamètre du galet (20) est déterminé pour que lorsque la clé est en position dans le cylindre de serrure (26), la surface du galet coopère avec l'extrémité d'une goupille (34).Locksmith assembly according to claim 6, characterized in that the diameter of the roller (20) is determined so that when the key is in position in the lock cylinder (26), the roller surface cooperates with the end of a pin (34). Ensemble de serrurerie selon la revendication 7, caractérisé en ce que des galets (20) sont disposés axialement en série dans la fenêtre (18) réalisée dans l'épaisseur de l'accueillage (4), et en ce que des goupilles (34) sont disposées de façon correspondante dans le cylindre de serrure (26), de telle sorte que le nombre de ces goupilles est équivalent au nombre de galets, et que l'espacement entre chaque goupille dans leur arrangement axial est équivalent à l'espacement entre chacun des galets.Locksmith assembly according to Claim 7, characterized in that rollers (20) are arranged axially in series in the window (18) formed in the thickness of the receiving space (4), and in that pins (34) are arranged correspondingly in the lock cylinder (26), so that the number of these pins is equivalent to the number of rollers, and that the spacing between each pin in their axial arrangement is equivalent to the spacing between each shingles. Ensemble de serrurerie selon la revendication 7 ou 8, caractérisé en ce que le cylindre de serrure (26) comporte une fente (45) pour le passage de la clé, ladite fente comportant deux rainures (46) disposées symétriquement de part et d'autre de la fente pour permettre le passage des galets (20) de plus grand diamètre que l'épaisseur de l'accueillage (4).Locksmith assembly according to claim 7 or 8, characterized in that the lock cylinder (26) has a slot (45) for the passage of the key, said slot having two grooves (46) arranged symmetrically on both sides the slot to allow the passage of the rollers (20) of larger diameter than the thickness of the accueillage (4). Ensemble de serrurerie selon l'une des revendications 6 à 9, caractérisé en ce qu'au moins un galet (20) présente une gorge annulaire creusée autour de sa périphérie pour coopérer avec l'extrémité d'une goupille.Locksmith assembly according to one of claims 6 to 9, characterized in that at least one roller (20) has an annular groove dug around its periphery to cooperate with the end of a pin. Ensemble de serrurerie selon l'une des revendications 6 à 10, caractérisé en ce que le cylindre de serrure (26) comporte cinq jeux de goupilles alignées axialement parmi lesquels, lorsque la clé est insérée dans le cylindre de serrure, un jeu de goupilles disposé dans une première moitié du cylindre est apte à correspondre avec la pluralité de galets (20), tandis que les quatre autres jeux de goupilles sont disposés dans la deuxième moitié du cylindre de manière à ce que deux premiers jeux correspondent avec des premières empreintes réalisées sur les faces de l'accueillage de la clé, et que deux autres jeux, décalés axialement par rapport aux deux premiers jeux, correspondent avec des deuxièmes empreintes réalisées sur les arêtes de l'accueillage.Locksmith assembly according to one of claims 6 to 10, characterized in that the lock cylinder (26) has five sets of axially aligned pins, among which, when the key is inserted into the lock cylinder, a set of pins arranged in a first half of the cylinder is adapted to correspond with the plurality of rollers (20), while the other four sets of pins are arranged in the second half of the cylinder so that two first sets correspond with first impressions made on the faces of the accueillage of the key, and two other games, offset axially with respect to the first two games, correspond with second impressions made on the edges of the accueillage.
EP14000142.1A 2013-01-15 2014-01-15 Locking key and cylinder lock assembly corresponding to such a key Active EP2754792B1 (en)

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FR1300072A FR3000982B1 (en) 2013-01-15 2013-01-15 LOCK KEY AND LOCK SET WITH CYLINDER CORRESPONDING TO SUCH A KEY

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DE202016003806U1 (en) 2015-07-22 2016-07-27 Dom Sicherheitstechnik Gmbh & Co. Kg Key for a lock cylinder and lock
EP3354826A1 (en) 2017-01-30 2018-08-01 DOM-Sicherheitstechnik GmbH & Co. KG Improved key for a lock cylinder, closing device and method
CN113665340A (en) * 2021-08-25 2021-11-19 湖南牛顺科技有限公司 Locking mechanism, battery box bracket and electric heavy truck

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FR2759406A1 (en) * 1997-02-13 1998-08-14 Silca France Sa Safety device formed by flat key and cylinder
WO1999064703A1 (en) * 1998-06-05 1999-12-16 Mottura Serrature Di Sicurezza S.P.A. Cylinder lock
WO2002042582A1 (en) * 2000-11-25 2002-05-30 Dom Sicherheitstechnik Gmbh & Co Kg Key and associated lock cylinder
EP1662077A1 (en) * 2004-11-30 2006-05-31 Titan Tovarna kovinskih izdelkov in livarna d.d., Kamnik A flat key with an additional security element
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DE102014010707A1 (en) * 2014-07-17 2016-01-21 Assa Abloy Sicherheitstechnik Gmbh Lock and key system
DE102014010707B4 (en) * 2014-07-17 2021-06-10 Assa Abloy Sicherheitstechnik Gmbh Lock and key system
DE202016003806U1 (en) 2015-07-22 2016-07-27 Dom Sicherheitstechnik Gmbh & Co. Kg Key for a lock cylinder and lock
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EP3301248A1 (en) 2015-07-22 2018-04-04 DOM-Sicherheitstechnik GmbH & Co. KG Key for a lock cylinder and locking device
EP3354826A1 (en) 2017-01-30 2018-08-01 DOM-Sicherheitstechnik GmbH & Co. KG Improved key for a lock cylinder, closing device and method
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CN113665340A (en) * 2021-08-25 2021-11-19 湖南牛顺科技有限公司 Locking mechanism, battery box bracket and electric heavy truck
CN113665340B (en) * 2021-08-25 2023-12-01 湖南牛顺科技有限公司 Locking mechanism, battery box bracket and electric heavy truck

Also Published As

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FR3000982B1 (en) 2021-01-08
EP2754792B1 (en) 2020-01-15
CA2839892C (en) 2020-07-14
FR3000982A1 (en) 2014-07-18

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