EP0872614A1 - Cylinder lock with multiple combinations - Google Patents

Cylinder lock with multiple combinations Download PDF

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Publication number
EP0872614A1
EP0872614A1 EP98420067A EP98420067A EP0872614A1 EP 0872614 A1 EP0872614 A1 EP 0872614A1 EP 98420067 A EP98420067 A EP 98420067A EP 98420067 A EP98420067 A EP 98420067A EP 0872614 A1 EP0872614 A1 EP 0872614A1
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EP
European Patent Office
Prior art keywords
rotor
key
cylinder according
propellers
housings
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.)
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Application number
EP98420067A
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German (de)
French (fr)
Inventor
André Merle
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.)
JPM S.A
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JPM Chauvat SA
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Publication date
Application filed by JPM Chauvat SA filed Critical JPM Chauvat SA
Publication of EP0872614A1 publication Critical patent/EP0872614A1/en
Withdrawn legal-status Critical Current

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    • 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
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in

Definitions

  • the present invention relates to lock cylinders, of the type European or not, composed of a body, forming a stator or not, of a rotor with a key slot and latches, arranged in housings, respectively, the stator and the rotor, each lock being composed of a feeler, with or without intermediate piston, counter piston and spring pushing the counter-piston, the possible piston, and the probe in the direction of the rotor slot.
  • the lock receiving housings are distributed in rectilinear rows, comprising 5 to 6 housings having positions different longitudinal lines and the rows are angularly offset around the longitudinal axis of the cylinder, so that the axes of the locks are substantially perpendicular to one of the 4 flat faces of the key, having a flattened rectangular cross section.
  • the combination depends on the number of rows of locks, the number of locks per row, position of the locks in a row and of the probe travel in the key, this travel can have from 3 to 6 different levels.
  • the document CH 390 178 describes a cylinder in which the lock slots are distributed locally on a propeller fragment, and arranged radially.
  • the openings in the flat key are distributed around it and weaken its resistant section less and that, when the key is engaged, each of the feelers comes into contact with friction on a longitudinal area of the key distinct from that of the others feelers, thereby reducing wear.
  • the housings distributed in a helix are located in the lower half of the cylinder, which limits the combinatorial possibilities, themselves halved due to the reversibility of the key.
  • this fragile key does not limit break-ins with a soft key.
  • the object of the present invention is to remedy these disadvantages, providing a cylinder to increase the number combinations, reducing friction wear, improving resistance of the key and increasing the fracturing difficulties.
  • the housings formed in the body and the rotor for the locks are distributed over at least three propellers, each making at least one turn in the active part of the cylinder, while the key, on the one hand, has a generally rectangular section which fits in a circle whose diameter is around half the diameter of the rotor and, on the other hand, has protruding at least each of its large faces, at least three longitudinal ribs, some of which are cut by hollows.
  • the number of combinations depends on the same parameters as those retained in cylinders with rectilinear rows of locks, but also of new parameters, namely the winding direction of the distribution propellers housings and locks, the starting point of the propellers and the pitch of the propellers, so this number is larger than in a cylinder traditional.
  • the ribs combine with the position in space of the locks, on the one hand, to complicate the realization of the hollows, by making this more difficult operation for a burglar, and on the other hand, for oppose any break-in with a soft key.
  • the reference numeral 2 designates the envelope of the cylinder composed of a stator 3, a rotor 4 with a slot 5 for the key 1 and of latches 6 arranged in the housings respectively 7 of the stator and 8 of the rotor.
  • Each lock is composed of a probe 10, possibly associated with one or more pistons 11, and a counter-piston 12. The pushing spring each lock in the direction of the slot 5 is not shown.
  • the housings 7 and 8 formed in the stator 3 and the rotor 4 for the latches 6 are distributed along three propellers, respectively H1, H2, H3 in Figure 1, which here are not the same and have the same direction, but which, in variants, may be of different steps, and of different meanings with intersection on a housing.
  • These three propellers, which each make a full turn in the active part of the cylinder, are angularly offset by 120 ° relative to each other, as shown by the letter A, E, I on the Figure 5, but this angular offset may be different.
  • the housings 7 and 8 are distributed with a pitch which, here, is constant, but which can to be different.
  • the housings 7 and 8 have longitudinal axes which are radial, as shown in Figure 5, by the dashed lines A to L.
  • the rotor 4 has three rows of seven housings, while the stator has six rows of seven housing.
  • the seventh slot in each row and the three rows additional stator are intended to perform functions complementary such as additional security detection, or participation in a combination modification function.
  • the pitch of the housing distribution propellers is chosen by relation to the pitch of the housings 7 and 8 and so that over the length of the useful part of the key 1, the two extreme housings are diametrically opposite, as shown by locks 6a, 6g, but it is obvious that any other distribution can be considered.
  • the propellers which, in this embodiment, roll up on the right, can also roll up on the left, or present angular offsets with respect to others, of equal or different values, and have a different starting point on the rotor.
  • FIG. 4 shows that the recesses 13, made in the key 1, are conical in shape and correspond to the tip 10a of the probes 10. From in known manner, the length of these probes can take different values. In the case of the cylinder shown, these values are five in number, as shown in T0 to T4 in Figure 4. Each probe size corresponds to a recess 13 whose depth S0 to S4 is adapted. Feelers can also have other shapes: round, square, triangular, oval, rectangular or other.
  • Figure 5 which shows the cross section of key 1, puts in evidence that it is part of a rectangle R whose ratio of width R1 on the height R2 is between 3/5 and 9/10 and for example 8/10.
  • Figure 6 shows that the cross section of the key fits in a circle 20 whose diameter is of the order of half that of the rotor 4.
  • FIG. 5 shows that, in the event that the recess 13 performed in position A is of maximum size S4, the presence in the sections transverse neighbors of hollows 13, also having maximum sizes, as shown for positions E, H and J, the core of the one-section key sufficient to withstand the forces received, i.e. preventing the rupture of that key.
  • Figures 7 and 8 show, respectively, a non-key reversible 1a and a reversible key 1b, show that even with recesses 13 of maximum depth, eighteen for Figure 7, and thirty six for FIG. 8, the material constituting the key is little affected and that, by however, the key is very difficult for a locksmith who does not have precise machining means, such as a numerically controlled machine.
  • each of the recesses 13 comes into contact with only one or two feelers, which considerably limits the wear of key 1, but also that of feelers, and by reaction, those of housings 7 and 8.
  • the cylinder according to the invention allows significantly increase the number of combinations, while improving resistance of the key and reducing the risk of break-ins.
  • the axes of the housings 7 and 8 receiving a lock and, which are necessarily coaxial, may, while remaining in a transverse plane of the body and of the rotor, not pass through the axis of rotation of the rotor, either by angular offset, or by transverse offset, either by these two offsets.
  • This shift which can concern at least one accommodation per propeller, one propeller or all propellers, further increases the number of combinations but, above all, makes it very difficult the break-in.

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  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

The security lock cylinder has a body (3) and a rotor (4) with a lengthwise slot (5) to receive a key (1). Its locking mechanism comprises a series of pins (6), each with a feeler (10) to interact with a recess (13) in the key bit, an intermediate piston (11), a counter-piston (12) and a spring. The holes (7,8) in the body and rotor of the lock which receive the pins lie in at least three spiral lines (H1,H2,H3), each making at least one full turn in the active portion of the cylinder. The key bit is basically rectangular in section, inscribed within a circle with a diameter about half that of the rotor and having at least three lengthwise ribs along each of its broad faces, some of the ribs having recesses for the pins.

Description

La présente invention est relative aux cylindres de serrure, de type européen ou non, composés d'un corps, formant stator ou non, d'un rotor avec une fente pour la clé et de verrous, disposés dans des logements, respectivement, du stator et du rotor, chaque verrou étant composé d'un palpeur, avec ou sans piston intermédiaire, d'un contre-piston et d'un ressort poussant le contre-piston, le piston éventuel, et le palpeur en direction de la fente du rotor.The present invention relates to lock cylinders, of the type European or not, composed of a body, forming a stator or not, of a rotor with a key slot and latches, arranged in housings, respectively, the stator and the rotor, each lock being composed of a feeler, with or without intermediate piston, counter piston and spring pushing the counter-piston, the possible piston, and the probe in the direction of the rotor slot.

Dans ce type de cylindre à pistons, lorsque le palpeur de chaque verrou pénètre dans une creusure ménagée dans la clé et adaptée à sa course, la zone de contact entre le contre-piston et le piston, ou le palpeur, vient dans ce qu'il est convenu d'appeler le cercle de cisaillement, correspondant à la face cylindrique du rotor. Il en résulte que, aucun des éléments contre-piston, piston ou palpeur ne s'oppose à la rotation du rotor par la clé.In this type of piston cylinder, when the probe of each lock enters a recess in the key and adapted to its stroke, the contact zone between the counter-piston and the piston, or the probe, comes in what is known as the shear circle, corresponding to the face cylindrical rotor. As a result, none of the counter piston elements, piston or probe does not oppose the rotation of the rotor by the key.

En pratique, les logements de réception des verrous sont répartis en rangées rectilignes, comprenant 5 à 6 logements ayant des positions longitudinales différentes et les rangées sont décalées angulairement autour de l'axe longitudinal du cylindre, de manière que les axes des verrous soient sensiblement perpendiculaires à l'une des 4 faces planes de la clé, présentant une section transversale rectangulaire aplatie.In practice, the lock receiving housings are distributed in rectilinear rows, comprising 5 to 6 housings having positions different longitudinal lines and the rows are angularly offset around the longitudinal axis of the cylinder, so that the axes of the locks are substantially perpendicular to one of the 4 flat faces of the key, having a flattened rectangular cross section.

La combinaison dépend du nombre de rangées de verrous, du nombre de verrous par rangées, de la position des verrous dans une rangée et de la course des palpeurs dans la clé, cette course pouvant présenter de 3 à 6 niveaux différents.The combination depends on the number of rows of locks, the number of locks per row, position of the locks in a row and of the probe travel in the key, this travel can have from 3 to 6 different levels.

Ce type du cylindre présente les inconvénients suivants :

  • pour certaine combinaison, la juxtaposition dans une même section ou dans des sections voisines, de creusures de profondeurs maximales, affaiblit la clé et peut favoriser la rupture de celle-ci,
  • le frottement des palpeurs sur une même zone longitudinale de la clé, entraíne dans le temps, l'usure de la clé et des palpeurs, des contre-pistons et des pistons éventuels, et par réaction, celle des logements du rotor et du stator.
  • il peut être actionné par une clé molle, c'est à dire par une clé comportant de la cire, ou équivalent, disposée dans des rainures longitudinales correspondant aux zones d'appui des palpeurs.
This type of cylinder has the following disadvantages:
  • for some combination, the juxtaposition in the same section or in adjacent sections, of recesses of maximum depths, weakens the key and can favor the breaking of it,
  • the friction of the probes on the same longitudinal area of the key, causes over time, the wear of the key and of the probes, of the counter-pistons and of the pistons, and by reaction, that of the housings of the rotor and the stator.
  • it can be actuated by a soft key, that is to say by a key comprising wax, or equivalent, arranged in longitudinal grooves corresponding to the contact zones of the feelers.

Le document CH 390 178 décrit un cylindre dans lequel les logements pour les verrous sont répartis localement sur un fragment d'hélice, et disposés radialement. Il en résulte que les creusures de la clé plate sont réparties autour de celle-ci et affaiblissent moins sa section résistante et que, lors de l'engagement de la clé, chacun des palpeurs vient en contact de frottement sur une zone longitudinale de la clé distincte de celle des autres palpeurs, en réduisant ainsi les usures. Toutefois, en raison du montage excentré du rotor dans le corps, les logements répartis en hélice sont localisés dans la moitié inférieure du cylindre, ce qui limite les possibilités combinatoires, elles-mêmes divisées par deux en raison de la réversibilité de la clé. De plus, cette clé fragile ne limite pas les effractions par une clé molle.The document CH 390 178 describes a cylinder in which the lock slots are distributed locally on a propeller fragment, and arranged radially. As a result, the openings in the flat key are distributed around it and weaken its resistant section less and that, when the key is engaged, each of the feelers comes into contact with friction on a longitudinal area of the key distinct from that of the others feelers, thereby reducing wear. However, due to the mounting eccentric of the rotor in the body, the housings distributed in a helix are located in the lower half of the cylinder, which limits the combinatorial possibilities, themselves halved due to the reversibility of the key. Moreover, this fragile key does not limit break-ins with a soft key.

Dans le document AU 485 117, les logements sont répartis sur des fragments d'hélices opposées et débouchent dans la fente pour la clé qui est également en hélice. Une telle solution, qui présente l'avantage de s'opposer à toute ouverture par une clé droite, n'apporte aucune augmentation de la combinaison et aucune réduction des usures, puisque tous les palpeurs frottent sur la même zone hélicoïdale de la clé.In document AU 485 117, the dwellings are distributed over fragments of opposite propellers and open into the key slot which is also in a helix. Such a solution, which has the advantage of oppose any opening with a straight key, does not increase of the suit and no reduction in wear, since all probes rub on the same helical area of the key.

La présente invention a pour objet de remédier à ces inconvénients, en fournissant un cylindre permettant d'augmenter le nombre des combinaisons, réduisant les usures par frottement, améliorant la résistance de la clé et augmentant les difficultés de fracturation.The object of the present invention is to remedy these disadvantages, providing a cylinder to increase the number combinations, reducing friction wear, improving resistance of the key and increasing the fracturing difficulties.

A cet effet, dans le cylindre selon l'invention, les logements ménagés dans le corps et le rotor pour les verrous sont répartis sur au moins trois hélices, faisant chacune au moins un tour dans la partie active du cylindre, tandis que la clé, d'une part, a une section générale rectangulaire qui s'inscrit dans un cercle dont le diamètre est de l'ordre de la moitié du diamètre du rotor et, d'autre part, présente en saillie d'au moins chacune de ses grandes faces, au moins trois nervures longitudinales dont certaines sont entaillées par des creusures.To this end, in the cylinder according to the invention, the housings formed in the body and the rotor for the locks are distributed over at least three propellers, each making at least one turn in the active part of the cylinder, while the key, on the one hand, has a generally rectangular section which fits in a circle whose diameter is around half the diameter of the rotor and, on the other hand, has protruding at least each of its large faces, at least three longitudinal ribs, some of which are cut by hollows.

Le nombre de combinaisons dépend des mêmes paramètres que ceux retenus dans les cylindres à rangées rectilignes de verrous, mais aussi de nouveaux paramètres, à savoir, le sens d'enroulement des hélices de répartition des logements et des verrous, le point de départ des hélices et le pas des hélices, de sorte que ce nombre est plus important que dans un cylindre traditionnel.The number of combinations depends on the same parameters as those retained in cylinders with rectilinear rows of locks, but also of new parameters, namely the winding direction of the distribution propellers housings and locks, the starting point of the propellers and the pitch of the propellers, so this number is larger than in a cylinder traditional.

Avec la répartition en hélices et la forte section de la clé, des creusures de profondeur maximale réalisées dans une même section ou dans des sections voisines de la clé, laissent toujours une section résistante centrale suffisante pour s'opposer à la rupture de la clé. En outre, lors de l'introduction d'une clé dans le cylindre, le nombre de palpeurs en ligne venant en contact avec les premières creusures, n'est plus de 5 ou 6 comme dans les cylindres actuels, mais de seulement 2 ou 3, ce qui limite les usures.With the helix distribution and the large section of the key, maximum depth burrows made in the same section or in sections close to the key, always leave a central resistant section sufficient to oppose the breaking of the key. In addition, during the introduction a key in the cylinder, the number of probes in line coming into contact with the first indentations, no more than 5 or 6 as in the cylinders current, but only 2 or 3, which limits wear.

Les nervures se combinent avec la position dans l'espace des verrous, d'une part, pour compliquer la réalisation des creusures, en rendant cette opération plus difficile pour un cambrioleur, et d'autre part, pour s'opposer à toute effraction par une clé molle.The ribs combine with the position in space of the locks, on the one hand, to complicate the realization of the hollows, by making this more difficult operation for a burglar, and on the other hand, for oppose any break-in with a soft key.

D'autres caractéristiques et avantages ressortiront de la description qui suit en référence au dessin schématique annexé représentant à titre d'exemple une forme d'exécution du cylindre selon l'invention.

  • Figure 1 est une vue en perspective éclatée montrant les différents éléments du cylindre selon l'invention,
  • Figure 2 est une vue partielle de côté en élévation d'une clé avec une rangée de pistons en hélice,
  • Figure 3 est une vue en perspective de la clé de figure 2,
  • Figure 4 est un schéma représentant les différentes tailles de palpeurs associées à différentes profondeurs de creusures,
  • Figure 5 est une vue en coupe transversale montrant, à échelle agrandie, la forme de la section transversale de la clé dans les diverses positions pouvant être occupées par les pistons,
  • Figure 6 est une vue en coupe brisée du cylindre faisant apparaítre différents verrous juxtaposés au plan de coupe,
  • Figures 7 et 8 sont des vues partielles en perspective d'une clé, respectivement non réversible et réversible, destinée à coopérer avec dix huit verrous répartis sur trois rangées hélicoïdales.
    • Other characteristics and advantages will emerge from the description which follows with reference to the appended schematic drawing showing by way of example an embodiment of the cylinder according to the invention.
  • FIG. 1 is an exploded perspective view showing the different elements of the cylinder according to the invention,
  • FIG. 2 is a partial side view in elevation of a wrench with a row of helical pistons,
  • FIG. 3 is a perspective view of the key of FIG. 2,
  • FIG. 4 is a diagram representing the different sizes of feelers associated with different depths of the trenches,
  • FIG. 5 is a cross-sectional view showing, on an enlarged scale, the shape of the cross section of the key in the various positions which can be occupied by the pistons,
  • FIG. 6 is a broken sectional view of the cylinder showing different locks juxtaposed on the cutting plane,
  • Figures 7 and 8 are partial perspective views of a key, respectively non-reversible and reversible, intended to cooperate with eighteen locks distributed over three helical rows.

    • A la figure 1, la référence numérique 2 désigne l'enveloppe du cylindre composée d'un stator 3, d'un rotor 4 avec une fente 5 pour la clé 1 et de verrous 6 disposés dans les logements respectivement 7 du stator et 8 du rotor. Chaque verrou est composé d'un palpeur 10, éventuellement associé à un ou plusieurs pistons 11, et d'un contre-piston 12. Le ressort poussant chaque verrou en direction de la fente 5 n'est pas représenté.In FIG. 1, the reference numeral 2 designates the envelope of the cylinder composed of a stator 3, a rotor 4 with a slot 5 for the key 1 and of latches 6 arranged in the housings respectively 7 of the stator and 8 of the rotor. Each lock is composed of a probe 10, possibly associated with one or more pistons 11, and a counter-piston 12. The pushing spring each lock in the direction of the slot 5 is not shown.

    Selon l'invention, les logements 7 et 8 ménagés dans le stator 3 et le rotor 4 pour les verrous 6 sont répartis suivant trois hélices, respectivement H1, H2, H3 à la figure 1, qui, ici, sont de même pas et de même sens, mais qui, dans des variantes, peuvent être de pas différents, et de sens différents avec entrecroisement sur un logement. Ces trois hélices, qui font chacune un tour complet dans la partie active du cylindre, sont décalées angulairement de 120 ° les unes par rapport aux autres, comme montré par la lettre A, E, I à la figure 5, mais ce décalage angulaire peut être différent. Sur chaque hélice, les logements 7 et 8 sont répartis avec un pas qui, ici, est constant, mais qui peut être différent. Les logements 7 et 8 ont des axes longitudinaux qui sont radiaux, comme représenté à la figure 5, par les traits mixtes A à L.According to the invention, the housings 7 and 8 formed in the stator 3 and the rotor 4 for the latches 6 are distributed along three propellers, respectively H1, H2, H3 in Figure 1, which here are not the same and have the same direction, but which, in variants, may be of different steps, and of different meanings with intersection on a housing. These three propellers, which each make a full turn in the active part of the cylinder, are angularly offset by 120 ° relative to each other, as shown by the letter A, E, I on the Figure 5, but this angular offset may be different. On each propeller, the housings 7 and 8 are distributed with a pitch which, here, is constant, but which can to be different. The housings 7 and 8 have longitudinal axes which are radial, as shown in Figure 5, by the dashed lines A to L.

    Dans la forme d'exécution représentée, le rotor 4 comporte trois rangées de sept logements, tandis que le stator comporte six rangées de sept logements. Le septième logement de chaque rangée et les trois rangées supplémentaires du stator sont destinées à assurer des fonctions complémentaires telles que détection de sécurité supplémentaire, ou participation à une fonction de modification de la combinaison.In the embodiment shown, the rotor 4 has three rows of seven housings, while the stator has six rows of seven housing. The seventh slot in each row and the three rows additional stator are intended to perform functions complementary such as additional security detection, or participation in a combination modification function.

    Dans la forme d'exécution représentée et comme le montrent les figures 2 et 3, le pas des hélices de répartition des logements est choisi en rapport avec le pas des logements 7 et 8 et de manière que, sur la longueur de la partie utile de la clé 1, les deux logements extrêmes soient diamétralement opposés, comme représenté par les verrous 6a, 6g, mais il est évident que toute autre répartition peut être envisagée. De même, les hélices qui, dans cette forme d'exécution, s'enroulent à droite, peuvent également s'enrouler sur la gauche, ou présenter des décalages angulaires les unes par rapport aux autres, de valeurs égales ou différentes, et avoir un point de départ différent sur le rotor. Ces divers paramètres se combinent avec le nombre de verrous par rangées, le nombre de rangées, la position des verrous dans chaque rangée, et la course des palpeurs pour augmenter les combinaisons pouvant être obtenues.In the embodiment shown and as shown by Figures 2 and 3, the pitch of the housing distribution propellers is chosen by relation to the pitch of the housings 7 and 8 and so that over the length of the useful part of the key 1, the two extreme housings are diametrically opposite, as shown by locks 6a, 6g, but it is obvious that any other distribution can be considered. Similarly, the propellers which, in this embodiment, roll up on the right, can also roll up on the left, or present angular offsets with respect to others, of equal or different values, and have a different starting point on the rotor. These various parameters are combined with the number of locks per rows, number of rows, position of locks in each row, and the probe stroke to increase the combinations that can be obtained.

    La figure 4 montre que les creusures 13, réalisées dans la clé 1, sont de forme conique et correspondent à l'embout 10a des palpeurs 10. De façon connue, la longueur de ces palpeurs peut prendre différentes valeurs. Dans le cas du cylindre représenté, ces valeurs sont au nombre de cinq, comme montré en T0 à T4 à la figure 4. A chaque taille de palpeur correspond une creusure 13 dont la profondeur S0 à S4 est adaptée. Les palpeurs peuvent aussi présenter d'autres formes: rondes, carrées, triangulaires, ovales, rectangulaires ou autres.FIG. 4 shows that the recesses 13, made in the key 1, are conical in shape and correspond to the tip 10a of the probes 10. From in known manner, the length of these probes can take different values. In the case of the cylinder shown, these values are five in number, as shown in T0 to T4 in Figure 4. Each probe size corresponds to a recess 13 whose depth S0 to S4 is adapted. Feelers can also have other shapes: round, square, triangular, oval, rectangular or other.

    La figure 5, qui représente la section transversale de la clé 1, met en évidence qu'elle s'inscrit dans un rectangle R dont le rapport de la largeur R1 sur la hauteur R2 est compris entre 3/5 et 9/10 et par exemple de 8/10. Par ailleurs, des rainures 14, ménagées longitudinalement et parallèlement dans chacune des grandes faces de la clé, délimitent, avec des chanfreins 16, trois nervures longitudinales 15 qui rigidifient la clé et contribuent également à l'inviolabilité du cylindre.Figure 5, which shows the cross section of key 1, puts in evidence that it is part of a rectangle R whose ratio of width R1 on the height R2 is between 3/5 and 9/10 and for example 8/10. By elsewhere, grooves 14, formed longitudinally and parallel in each of the large faces of the key, delimit, with chamfers 16, three longitudinal ribs 15 which stiffen the key and also contribute to the inviolability of the cylinder.

    La figure 6 montre que la section transversale de la clé s'inscrit dans un cercle 20 dont le diamètre est de l'ordre de la moitié de celui du rotor 4. Ces différents rapports dimensionnels permettent d'obtenir une clé résistante pouvant recevoir des creusures 13 de différentes tailles, tout en donnant aux palpeurs 10 plusieurs longueurs dont les plus faibles n'altèrent pas leur guidage en translation dans les logements 7 et 8.Figure 6 shows that the cross section of the key fits in a circle 20 whose diameter is of the order of half that of the rotor 4. These different dimensional ratios make it possible to obtain a resistant key can accommodate recesses 13 of different sizes, while giving the probes 10 several lengths, the shortest of which do not alter their guidance in translation in the housings 7 and 8.

    Les positions référencées A à L à la figure 5, délimitées par les traits mixtes décalés angulairement de 30 ° les uns par rapport aux autres, correspondent aux diverses positions pouvant être prises par les logements et les verrous sur les trois hélices de répartition.The positions referenced A to L in FIG. 5, delimited by the mixed lines angularly offset by 30 ° relative to each other, correspond to the various positions that can be taken by the housings and the locks on the three distribution propellers.

    La figure 5 montre que, dans l'hypothèse où la creusure 13 réalisée en position A est de taille maximale S4, la présence dans les sections transversales voisines de creusures 13, ayant également des tailles maximales, comme montré pour les positions E, H et J, le noyau de la clé à une section suffisante pour résister aux efforts reçus, c'est à dire empêchant la rupture de cette clé.FIG. 5 shows that, in the event that the recess 13 performed in position A is of maximum size S4, the presence in the sections transverse neighbors of hollows 13, also having maximum sizes, as shown for positions E, H and J, the core of the one-section key sufficient to withstand the forces received, i.e. preventing the rupture of that key.

    Les figures 7 et 8 représentant, respectivement, une clé non réversible 1a et une clé réversible 1b, montrent que, même avec des creusures 13 de profondeur maximale, au nombre de dix huit pour la figure 7, et de trente six pour la figure 8, la matière constitutive de la clé est peu affectée et que, par contre, la clé est très difficile à réaliser par un serrurier ne disposant pas de moyen d'usinage précis, tel qu'une machine à commande numérique.Figures 7 and 8 show, respectively, a non-key reversible 1a and a reversible key 1b, show that even with recesses 13 of maximum depth, eighteen for Figure 7, and thirty six for FIG. 8, the material constituting the key is little affected and that, by however, the key is very difficult for a locksmith who does not have precise machining means, such as a numerically controlled machine.

    Grâce à la répartition en hélice des verrous, lorsque, l'une quelconque des deux clés représentées à ces figures est engagée dans la fente 5 du rotor, chacune des creusures 13 ne vient en contact qu'avec un ou deux palpeurs, ce qui limite considérablement l'usure de la clé 1, mais aussi celle des palpeurs, et par réaction, celles des logements 7 et 8. Thanks to the helix distribution of the locks, when one any of the two keys shown in these figures is engaged in the slot 5 of the rotor, each of the recesses 13 comes into contact with only one or two feelers, which considerably limits the wear of key 1, but also that of feelers, and by reaction, those of housings 7 and 8.

    Enfin, ces figures montrent aussi que, en raison de la répartition en hélice des creusures 13 et de la présence des nervures 15, le remplacement de la clé par une clé molle n'est pas possible, ce qui améliore considérablement l'inviolabilité du cylindre.Finally, these figures also show that, due to the distribution in propeller of the recesses 13 and the presence of the ribs 15, the replacement of the key by a soft key is not possible, which considerably improves the inviolability of the cylinder.

    Il ressort de ce qui précède que le cylindre selon l'invention permet d'augmenter considérablement le nombre de combinaisons, tout en améliorant la résistance de la clé et en réduisant les risques d'effraction.It appears from the above that the cylinder according to the invention allows significantly increase the number of combinations, while improving resistance of the key and reducing the risk of break-ins.

    Dans une variante de réalisation non représentée, les axes des logements 7 et 8 accueillant un verrou et, qui sont nécessairement coaxiaux, peuvent, tout en restant dans un plan transversal du corps et du rotor, ne pas passer par l'axe de rotation du rotor, soit par décalage angulaire, soit par décalage transversal, soit par ces deux décalages. Ce décalage, qui peut concerner au moins un logement par hélice, une hélice ou toutes les hélices, augmente encore le nombre de combinaison mais, surtout, rend très difficile l'effraction.In an alternative embodiment not shown, the axes of the housings 7 and 8 receiving a lock and, which are necessarily coaxial, may, while remaining in a transverse plane of the body and of the rotor, not pass through the axis of rotation of the rotor, either by angular offset, or by transverse offset, either by these two offsets. This shift, which can concern at least one accommodation per propeller, one propeller or all propellers, further increases the number of combinations but, above all, makes it very difficult the break-in.

    Claims (11)

    Cylindre de serrure de sécurité, comprenant un corps (3), un rotor (4) avec une fente longitudinale (5) pour l'introduction de la clé (1), et des verrous (6) composés chacun d'un palpeur (10) apte à coopérer avec une creusure (13) de la clé, éventuellement d'un ou de plusieurs pistons intermédiaires (11), d'un contre-piston (12) et d'un ressort poussant le piston et le palpeur en direction de la fente du rotor, ces verrous (6) étant disposés dans au moins quelques logements (7, 8) de rangées hélicoïdales de logements ménagées dans le rotor (4) et dans le stator (3), caractérisé en ce que les logements (7 et 8) ménagés dans le corps (3) et le rotor (4) pour les verrous sont répartis sur au moins trois hélices (H1, H2 et H3), faisant chacune au moins un tour dans la partie active du cylindre, tandis que la clé (1), d'une part, a une section générale rectangulaire qui s'inscrit dans un cercle (20) dont le diamètre est de l'ordre de la moitié du diamètre du rotor (4) et, d'autre part, présente en saillie d'au moins chacune de ses grandes faces, au moins trois nervures longitudinales (15), dont certaines sont entaillées par des creusures (13).Security lock cylinder, comprising a body (3), a rotor (4) with a longitudinal slot (5) for the introduction of the key (1), and latches (6) each composed of a feeler (10) capable of cooperating with a recess (13) of the key, possibly of one or more pistons intermediate (11), a counter-piston (12) and a spring pushing the piston and the probe in the direction of the rotor slot, these latches (6) being arranged in at least some housings (7, 8) of helical rows of housings formed in the rotor (4) and in the stator (3), characterized in that the housings (7 and 8) formed in the body (3) and the rotor (4) for the latches are distributed over at least three propellers (H1, H2 and H3), each making minus one turn in the active part of the cylinder, while the key (1), on the one hand, has a general rectangular section which is inscribed in a circle (20) whose diameter is of the order of half the diameter of the rotor (4) and, on the other hand, has at least three of its major faces protruding, at least three longitudinal ribs (15), some of which are cut by hollows (13). Cylindre de serrure selon la revendication 1, caractérisé en ce que les hélices de répartition des logements (7 et 8) ont le même pas.Lock cylinder according to claim 1, characterized in that the housing distribution propellers (7 and 8) have the same pitch. Cylindre de serrure selon la revendication 1, caractérisé en ce que les hélices de répartition des logements (7 et 8) ont des pas différents.Lock cylinder according to claim 1, characterized in that the housing distribution propellers (7 and 8) have different pitches. Cylindre selon la revendication 1, caractérisé en ce que les hélices de répartition des logements (7 et 8) ont le même sens.Cylinder according to claim 1, characterized in that the housing distribution propellers (7 and 8) have the same direction. Cylindre selon la revendication 1, caractérisé en ce que, au moins l'une des hélices de répartition des logements (7 et 8) a un sens d'enroulement opposé au sens d'enroulement des deux autres.Cylinder according to claim 1, characterized in that, at the at least one of the housing distribution propellers (7 and 8) makes sense of winding opposite to the winding direction of the other two. Cylindre selon la revendication 1, caractérisé en ce que les points de départ des hélices sur le corps (3) et le rotor (4) sont séparés par des angles de même valeur. Cylinder according to claim 1, characterized in that the starting points of the propellers on the body (3) and the rotor (4) are separated by angles of the same value. Cylindre selon la revendication 1, caractérisé en ce que les points de départ des hélices sur le corps (3) et le rotor (4) sont séparés par des angles de valeurs différentes.Cylinder according to claim 1, characterized in that the starting points of the propellers on the body (3) and the rotor (4) are separated by angles of different values. Cylindre selon la revendication 1, caractérisé en ce que le pas d'espacement des logements (7 et 8) sur une hélice de répartition est constant.Cylinder according to claim 1, characterized in that the pitch spacing of the housings (7 and 8) on a distribution propeller is constant. Cylindre selon la revendication 1, caractérisé en ce que la valeur du pas de répartition des logements (7 et 8) sur une même hélice est variable.Cylinder according to claim 1, characterized in that the value the pitch of the housing distribution (7 and 8) on the same propeller is variable. Cylindre selon la revendication 1, caractérisé en ce que l'axe commun d'au moins deux logements 7 et 8 pour un même verrou est disposé dans un plan transversal du rotor mais ne passe par l'axe de rotation de ce rotor, soit par décalage angulaire, soit par décalage transversal, soit par ces deux décalages.Cylinder according to claim 1, characterized in that the axis common of at least two housings 7 and 8 for the same lock is arranged in a transverse plane of the rotor but does not pass through the axis of rotation of this rotor, either by angular offset, or by transverse offset, or by these two shifts. Cylindre selon la revendication 1, caractérisé en ce que le rapport largeur R1/hauteur R2 de la section transversale de la clé (1) est compris entre 3/5 et 9/10.Cylinder according to claim 1, characterized in that the ratio width R1 / height R2 of the cross section of the key (1) is between 3/5 and 9/10.
    EP98420067A 1997-04-18 1998-04-15 Cylinder lock with multiple combinations Withdrawn EP0872614A1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR9705046 1997-04-18
    FR9705046A FR2762346B1 (en) 1997-04-18 1997-04-18 MULTI-COMBINATION LOCK CYLINDER

    Publications (1)

    Publication Number Publication Date
    EP0872614A1 true EP0872614A1 (en) 1998-10-21

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    ID=9506252

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP98420067A Withdrawn EP0872614A1 (en) 1997-04-18 1998-04-15 Cylinder lock with multiple combinations

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    EP (1) EP0872614A1 (en)
    FR (1) FR2762346B1 (en)

    Cited By (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP1132551A3 (en) * 2000-03-09 2003-02-05 Aug. Winkhaus GmbH & Co. KG Reversible key
    CN103075050A (en) * 2013-02-05 2013-05-01 徐平 Spiral anti-theft lock
    CN103790441A (en) * 2014-01-07 2014-05-14 瑞安市正全锁业有限公司 Anti-theft lock
    CN104110170A (en) * 2014-03-13 2014-10-22 徐发煌 Spiral convex-concave-wall positioning anti-drilling antitheft lock
    CN104110171A (en) * 2014-03-13 2014-10-22 徐发煌 Spiral acute angle interval positioning anti-drilling antitheft lock

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    CH390178A (en) 1960-04-26 1965-03-31 Strake Maschf Nv loom
    CH390718A (en) * 1960-01-13 1965-04-15 Doppler Wilhelm Security lock with key
    AU485117B2 (en) 1973-06-12 1975-12-18 Ogden Industries Pty. Limited Cylinder lock and key for same
    FR2484000A1 (en) * 1980-06-04 1981-12-11 Schulte C E Gmbh NON-STRETCHED CYLINDER LOCK
    US5176015A (en) * 1991-04-10 1993-01-05 Sussina Stan J Restricted key system
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    WO1996021786A1 (en) * 1995-01-09 1996-07-18 I.M.S. Technologies A.S. Lock insert

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    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CH390718A (en) * 1960-01-13 1965-04-15 Doppler Wilhelm Security lock with key
    CH390178A (en) 1960-04-26 1965-03-31 Strake Maschf Nv loom
    AU485117B2 (en) 1973-06-12 1975-12-18 Ogden Industries Pty. Limited Cylinder lock and key for same
    FR2484000A1 (en) * 1980-06-04 1981-12-11 Schulte C E Gmbh NON-STRETCHED CYLINDER LOCK
    US5176015A (en) * 1991-04-10 1993-01-05 Sussina Stan J Restricted key system
    DE4125017A1 (en) * 1991-07-27 1993-01-28 Dom Sicherheitstechnik LOCKING DEVICE MADE OF KEY AND LOCKING CYLINDER
    WO1996021786A1 (en) * 1995-01-09 1996-07-18 I.M.S. Technologies A.S. Lock insert

    Cited By (10)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP1132551A3 (en) * 2000-03-09 2003-02-05 Aug. Winkhaus GmbH & Co. KG Reversible key
    CN103075050A (en) * 2013-02-05 2013-05-01 徐平 Spiral anti-theft lock
    CN103075050B (en) * 2013-02-05 2015-04-01 徐平 Spiral anti-theft lock
    CN103790441A (en) * 2014-01-07 2014-05-14 瑞安市正全锁业有限公司 Anti-theft lock
    WO2015103896A1 (en) * 2014-01-07 2015-07-16 瑞安市正全锁业有限公司 Anti-theft lockset
    CN103790441B (en) * 2014-01-07 2016-01-13 瑞安市正全锁业有限公司 Lock
    CN104110170A (en) * 2014-03-13 2014-10-22 徐发煌 Spiral convex-concave-wall positioning anti-drilling antitheft lock
    CN104110171A (en) * 2014-03-13 2014-10-22 徐发煌 Spiral acute angle interval positioning anti-drilling antitheft lock
    CN105863381A (en) * 2014-03-13 2016-08-17 徐发煌 Manufacturing method of drilling-resistant anti-theft lock provided with spiral acute-angle grooves and adopting spaced positioning
    CN105863381B (en) * 2014-03-13 2018-09-11 徐发煌 Spiral acute angle positioned at intervals drill-preventive anti-theft lock

    Also Published As

    Publication number Publication date
    FR2762346B1 (en) 1999-07-09
    FR2762346A1 (en) 1998-10-23

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