EP3786395B1 - Lock with cylinder - Google Patents

Lock with cylinder Download PDF

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Publication number
EP3786395B1
EP3786395B1 EP20189761.8A EP20189761A EP3786395B1 EP 3786395 B1 EP3786395 B1 EP 3786395B1 EP 20189761 A EP20189761 A EP 20189761A EP 3786395 B1 EP3786395 B1 EP 3786395B1
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EP
European Patent Office
Prior art keywords
rotor
key
elastic leaf
lock according
stator
Prior art date
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EP20189761.8A
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German (de)
French (fr)
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EP3786395A1 (en
Inventor
Romain FERREIRA
Hervé JULIEN
Alexandre Gossiaux
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.)
Assa Abloy France SAS
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Assa Abloy France SAS
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Publication of EP3786395A1 publication Critical patent/EP3786395A1/en
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E05B27/0042—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with additional key identifying function, e.g. with use of additional key operated rotor-blocking elements, not of split pin tumbler type

Definitions

  • the invention relates to a cylinder lock, with a control key, comprising a stator, safety pins, a rotor and a key, the rotor rotating in the stator under the action of the key, and, as an additional means of authorization of the rotation of the rotor, an elastic blade, the median plane of which contains the axis of the rotor, one end of which is fixed in the rotor and the other end of which is free in radial displacement, the free end of the elastic blade being movable between an unconstrained position, where it is fully housed in the rotor and where it allows rotation of the rotor, and a constrained position where it protrudes from the rotor and where it cooperates with a slot in the stator to prevent the rotation of the rotor.
  • the document FR 595 730 describes a lock in which an elastic blade ensures locking of the rotor in the absence of a key, and another elastic blade carries a lug ensuring the locking of the rotor in the presence of a key that does not have a notch corresponding to the profile of the lug .
  • the document FR 2 185 096 describes a lock in which elastic slats with ends bent towards the axis of the rotor provide locking of the rotor when the key does not have the notches corresponding to the ends of the slats.
  • the document FR 2 868 803 describes a cylinder lock in which the stator and the rotor have a radial housing.
  • the rotor comprises a stop piece, elastically articulated, which, in the absence of a key, partly occupies the two radial housings and prevents rotation of the rotor.
  • the stopper In the presence of the good key, the stopper is pulled into retraction in the radial housing of the rotor and allows rotation.
  • the stop piece remains in retraction under constraint as long as the key is in position in the lock
  • the document OF 32 16481 describes a cylinder lock in which the stator comprises a radial housing, and the rotor has, on its periphery, a leaf spring arranged in an arc of a circle perpendicular to the axis of the rotor.
  • the document US 3,881,333 describes a cylinder lock in which the rotor carries a leaf spring, arranged perpendicular to the axis of the rotor, one end of which is free to move, and the other end of which is secured to the outer part of the rotor.
  • the free end of the blade is, at rest, inserted into the stator, and the introduction of the correct key ensures its release from the stator and the possible rotation of the rotor.
  • the blade is stressed as long as the key is in position.
  • the free end of the key is, at rest, housed in the rotor and the introduction of the correct key does not modify its position, and ensures the rotation of the rotor, whereas the introduction of a higher key moves the free end of the blade towards a cavity of the stator to prevent the rotation of the rotor.
  • An object of the present invention is to propose a cylinder lock comprising an additional means for authorizing the rotation of the rotor, linked to the introduction of the key.
  • the subject of the invention is a cylinder lock with a control key, comprising a stator, safety pins, a rotor and a key, the rotor rotating in the stator under the action of the key, and, as an additional means of authorization of the rotation of the rotor, an elastic blade, the median plane of which contains the axis of the rotor, one end of which is fixed in the rotor and the other end of which is free in radial displacement, the free end of the blade elastic being movable between an unconstrained position, where it is fully housed in the rotor and where it allows rotation of the rotor, and a constrained position where it protrudes from the rotor and where it cooperates with a slot in the stator to prevent the rotation of the rotor, characterized in that the elastic blade consists of a first part parallel to the axis of the rotor and fixed to the rotor, of an intermediate part with a curved profile, extending towards the axis of the rotor, and of
  • the intermediate part comprises, between the first part of the blade and the end part, an oblique part inclined towards the axis of the rotor, and an elbow.
  • the rotor has a longitudinal housing to receive the elastic blade and a spacer for holding the first part of the elastic blade.
  • the spacer seals the housing except for a space allowing the free end of the elastic strip to pass.
  • the elbow of the elastic blade projects towards the inside of the rotor and the free end of the elastic blade is in the retracted position, housed in the thickness of the rotor.
  • the elastic blade in the presence of a key rod without indentation, is subjected to a stress and its free end protrudes from the rotor and enters the crenel of the stator to prevent the rotation of the rotor.
  • the housing receiving the elastic blade is placed in a rotor zone not provided with pin housings.
  • the elastic blade is divided, along its median plane containing the axis of the rotor, into two asymmetrical strips, the end parts of which cooperate with separate slots of the stator.
  • the key comprises at its end an inclined ramp to constrain the end part of the elastic blade outwards during the introduction of the key.
  • the notch of the key ensures the removal of the stress on the elastic blade and the release of the rotor by the free end of the elastic blade.
  • the key shank carrying the indentation is of any type: flat, round, or of polygonal contour.
  • the key shank has two notches axially offset and located on either side of its median plane.
  • the cylinder lock according to Fig. 1 to Figs. 6 essentially comprises a stator 1, a rotor 2, and a key 3.
  • the rotor 2 comprises an oblong longitudinal housing 4 to receive an elastic blade 5.
  • the elastic blade 5 consists of a first part 6, a second part 7 oblique with respect to the first part 6, an elbow 8 and an end part 9 substantially perpendicular to the first part 6.
  • the housing 4 is entirely open towards the outside of the rotor 2.
  • the housing 4 is partially open, and it has a support tablet 10 to receive the first part 6 of the elastic blade 5.
  • the tablet 10 is for example cylindrical and coaxial with the rotor, or flat and parallel to the axis of the rotor.
  • the elastic blade 5 is fixed on the tablet 10 by means of a spacer 11 carrying a finger 12.
  • the first part 6 of the elastic blade 5 comprises an orifice 13, and the tablet 10 comprises a corresponding orifice 14.
  • the elastic blade 5 is placed in the housing 4 with its first part 6 resting on the tablet 10, its orifice 13 above the orifice 14 of the tablet, its second part 7 and its elbow 8 projecting towards the interior of the rotor 2, and its end part 9 facing the outside of the rotor 2.
  • the maintenance of the first part 6 of the elastic blade 5 on the shelf 10 is ensured by means of the spacer 11 whose finger 12 is inserted into the orifices 13 of the first part 6 of the elastic blade 5, and 14 of the tablet 10.
  • the spacer 11 ensures that the first part 6 of the elastic blade 5 is held in a fixed position on the tablet 10, leaving free movement of the rest of the elastic blade.
  • the spacer 11 closes off the housing 4 on the outer surface of the rotor 2, with the exception of a slot-shaped space 15 perpendicular to the axis of the rotor, and corresponding to the passage of the end part 9 of the elastic blade 5.
  • the spacer 11 seals the housing 4 so that, when the rotor rotates, the variation pins arranged in the stator are held in position and do not prevent the rotation of the rotor.
  • the stator 1 and the rotor 2 are equipped with several sets of pins (three in the example shown).
  • the housing 4 in the rotor 2 is arranged in a zone not provided with pin housings to avoid any interaction between the pin system and the elastic blade 5.
  • the oblong housing 4 is placed near the face 16 of access to the rotor 2, with the slot 15 on the side of the face 16.
  • the key 3 has a key stem of any shape, flat, round or of polygonal contour as in the example shown.
  • the tip of the the key rod has an inclined ramp 19 intended to cooperate with the elastic blade 5 during the introduction of the key 3 into the rotor 2. Indeed, in the absence of a key, the elastic blade 5 protrudes at the inside the rotor 2, and the end part 9 of the elastic blade 5 does not come out of the slot 15.
  • the rotation of the rotor is allowed. It is advantageous that the profile of the notch 18 of the key 3 and the profile of the elastic blade 5, in particular of its second oblique part 7 and of its elbow 8, are concordant, so that their movements relative to the insertion and exit of the key are continuous and smooth.
  • the role of the elastic blade is not to provide additional locking of the lock. Essentially, the elastic blade prevents the rotation of the rotor by means of a key not having the notch 18 making it possible to release the blade from any constraint.
  • the elastic blade 5 comprises a first part 6 with its orifice 13 for fixing to the shelf 10 of the rotor. Beyond the first part 6, the elastic blade 5 is divided, along its median plane containing the axis of the rotor, into two asymmetrical blades 21 and 22.
  • the two blades have the same general shape as the elastic blade 5, but different dimensions, and their end parts cooperate with two separate stator slots.
  • the oblique part and the end part of the lamella 21 are larger than those of the lamella 22.
  • the stator has two slots, such as the slot 17, axially offset and located on either side, from its median plane, and the key shank has two notches, such as the notch 18, axially offset and located on either side of its median plane.
  • the elastic blade 5 comprises a first part 6 fixed to the rotor and substantially parallel to the axis of the rotor 2, and an end part 9 substantially perpendicular to the first part, that is to say say to the axis of the rotor. Between these two parts 6 and 9, the blade 5 comprises an intermediate part 20 described in the form of an oblique part 7 and an elbow 8. This shape is not imperative and this intermediate part 20 is advantageously with a curved profile , and extending towards the axis of the rotor with respect to the first fixed part.

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  • Lock And Its Accessories (AREA)

Description

L'invention concerne une serrure à cylindre, à clé de commande, comportant un stator, des goupilles de sécurité, un rotor et une clé, le rotor tournant dans le stator sous l'action de la clé, et, comme moyen supplémentaire d'autorisation de la rotation du rotor, une lame élastique, dont le plan médian contient l'axe du rotor, dont une extrémité est fixée dans le rotor et dont l'autre extrémité est libre en déplacement radial, l'extrémité libre de la lame élastique étant déplaçable entre une position sans contrainte, où elle est entièrement logée dans le rotor et où elle autorise la rotation du rotor, et une position avec contrainte où elle fait saillie du rotor et où elle coopère avec un créneau du stator pour empêcher la rotation du rotor.The invention relates to a cylinder lock, with a control key, comprising a stator, safety pins, a rotor and a key, the rotor rotating in the stator under the action of the key, and, as an additional means of authorization of the rotation of the rotor, an elastic blade, the median plane of which contains the axis of the rotor, one end of which is fixed in the rotor and the other end of which is free in radial displacement, the free end of the elastic blade being movable between an unconstrained position, where it is fully housed in the rotor and where it allows rotation of the rotor, and a constrained position where it protrudes from the rotor and where it cooperates with a slot in the stator to prevent the rotation of the rotor.

Le document FR 595 730 décrit une serrure dans laquelle une lame élastique assure un blocage du rotor en l'absence de clé, et une autre lame élastique porte un taquet assurant le blocage du rotor en présence d'une clé ne présentant pas d'encoche correspondant au profil du taquet.The document FR 595 730 describes a lock in which an elastic blade ensures locking of the rotor in the absence of a key, and another elastic blade carries a lug ensuring the locking of the rotor in the presence of a key that does not have a notch corresponding to the profile of the lug .

Le document FR 2 185 096 décrit une serrure dans laquelle des lamelles élastiques à extrémités coudées vers l'axe du rotor assurent un blocage du rotor lorsque la clé ne présente pas les encoches correspondant aux extrémités des lamelles.The document FR 2 185 096 describes a lock in which elastic slats with ends bent towards the axis of the rotor provide locking of the rotor when the key does not have the notches corresponding to the ends of the slats.

Le document US 3 621 682 décrit une serrure dans laquelle une lame élastique a une extrémité fixée dans le rotor et une extrémité libre rabattue vers l'axe du rotor et assurant le blocage du rotor en l'absence de clé. A l'introduction d'une clé, la lame élastique a son extrémité libre sollicitée perpendiculairement à l'axe du rotor. En présence de la bonne clé, la lame élastique est tout entière logée dans le volume du rotor et la rotation est autorisée. Cependant, tant que la clé est en position, la lame est contrainte hors de sa position de repos.The document US 3,621,682 describes a lock in which an elastic blade has one end fixed in the rotor and a free end folded down towards the axis of the rotor and ensuring the locking of the rotor in the absence of a key. When a key is inserted, the elastic blade has its free end stressed perpendicularly to the axis of the rotor. In the presence of the correct key, the elastic blade is completely housed in the volume of the rotor and rotation is authorized. However, as long as the key is in position, the blade is forced out of its rest position.

Le document FR 2 868 803 décrit une serrure à cylindre dans laquelle le stator et le rotor présentent un logement radial. Le rotor comporte une pièce d'arrêt, articulée élastiquement, qui, en l'absence de clé, occupe en partie les deux logements radiaux et empêche la rotation du rotor. En présence de la bonne clé, la pièce d'arrêt est entraînée en rétraction dans le logement radial du rotor et autorise la rotation. La pièce d'arrêt reste en retraction sous contrainte tant que la clé est en position dans la serrureThe document FR 2 868 803 describes a cylinder lock in which the stator and the rotor have a radial housing. The rotor comprises a stop piece, elastically articulated, which, in the absence of a key, partly occupies the two radial housings and prevents rotation of the rotor. In the presence of the good key, the stopper is pulled into retraction in the radial housing of the rotor and allows rotation. The stop piece remains in retraction under constraint as long as the key is in position in the lock

Le document DE 32 16481 décrit une serrure à cylindre dans laquelle le stator comporte un logement radial, et le rotor présente, sur sa périphérie, une lame de ressort disposée en arc de cercle perpendiculairement à l'axe du rotor. Lorsque la bonne clé est introduite, elle passe sous la lame sans la déformer et la rotation du rotor est possible. Lorsqu'une clé plus haute est introduite, elle soulève la lame de ressort, qui fait saillie dans le logement radial du stator et interdit la rotation du rotorThe document OF 32 16481 describes a cylinder lock in which the stator comprises a radial housing, and the rotor has, on its periphery, a leaf spring arranged in an arc of a circle perpendicular to the axis of the rotor. When the correct key is inserted, it passes under the blade without deforming it and rotation of the rotor is possible. When a higher key is introduced, it lifts the leaf spring, which protrudes into the radial housing of the stator and prevents rotation of the rotor

Le document US 3 881 333 décrit une serrure à cylindre dans laquelle le rotor porte une lame de ressort, disposée perpendiculairement à l'axe du rotor, dont une extrémité est libre de mouvement, et dont l'autre extrémité est solidaire de la partie extérieure du rotor. Dans un cas, l'extrémité libre de la lame est, au repos, insérée dans le stator, et l'introduction de la bonne clé assure sa libération du stator et la rotation possible du rotor. La lame est sollicitée tant que la clé est en position. Dans un autre cas, l'extrémité libre de la clé est, au repos, logée dans le rotor et l'introduction de la bonne clé ne modifie pas sa position, et assure la rotation du rotor, alors que l'introduction d'une clé plus haute déplace l'extrémité libre de la lame vers une cavité du stator pour interdire la rotation du rotor.The document US 3,881,333 describes a cylinder lock in which the rotor carries a leaf spring, arranged perpendicular to the axis of the rotor, one end of which is free to move, and the other end of which is secured to the outer part of the rotor. In one case, the free end of the blade is, at rest, inserted into the stator, and the introduction of the correct key ensures its release from the stator and the possible rotation of the rotor. The blade is stressed as long as the key is in position. In another case, the free end of the key is, at rest, housed in the rotor and the introduction of the correct key does not modify its position, and ensures the rotation of the rotor, whereas the introduction of a higher key moves the free end of the blade towards a cavity of the stator to prevent the rotation of the rotor.

Dans les serrures à cylindre, la manœuvre du rotor au moyen de la clé est en général assurée après la mise en position d'ouverture de goupilles autorisant la rotation du rotor.In cylinder locks, the operation of the rotor by means of the key is generally ensured after the placing in the open position of pins authorizing the rotation of the rotor.

Un but de la présente invention est de proposer une serrure à cylindre comportant un moyen supplémentaire d'autorisation de la rotation du rotor, lié à l'introduction de la clé.An object of the present invention is to propose a cylinder lock comprising an additional means for authorizing the rotation of the rotor, linked to the introduction of the key.

L'invention a pour objet une serrure à cylindre à clé de commande, comportant un stator, des goupilles de sécurité, un rotor et une clé, le rotor tournant dans le stator sous l'action de la clé, et, comme moyen supplémentaire d'autorisation de la rotation du rotor, une lame élastique, dont le plan médian contient l'axe du rotor, dont une extrémité est fixée dans le rotor et dont l'autre extrémité est libre en déplacement radial, l'extrémité libre de la lame élastique étant déplaçable entre une position sans contrainte, où elle est entièrement logée dans le rotor et où elle autorise la rotation du rotor, et une position avec contrainte où elle fait saillie du rotor et où elle coopère avec un créneau du stator pour empêcher la rotation du rotor, caractérisée en ce que la lame élastique est constituée d'une première partie parallèle à l'axe du rotor et fixée au rotor, d'une partie intermédiaire à profil courbe, s'étendant vers l'axe du rotor, et d'une partie d'extrémité sensiblement perpendiculaire à l'axe du rotor et s'étendant vers l'extérieur du rotor ; et en ce que la clé comporte, sur sa tige, une échancrure dont le profil englobe celui de la partie intermédiaire et de la partie d'extrémité de la lame élastique, de sorte que, après introduction de la clé, la lame élastique, logée dans ladite échancrure, n'est soumise à aucune contrainte.The subject of the invention is a cylinder lock with a control key, comprising a stator, safety pins, a rotor and a key, the rotor rotating in the stator under the action of the key, and, as an additional means of authorization of the rotation of the rotor, an elastic blade, the median plane of which contains the axis of the rotor, one end of which is fixed in the rotor and the other end of which is free in radial displacement, the free end of the blade elastic being movable between an unconstrained position, where it is fully housed in the rotor and where it allows rotation of the rotor, and a constrained position where it protrudes from the rotor and where it cooperates with a slot in the stator to prevent the rotation of the rotor, characterized in that the elastic blade consists of a first part parallel to the axis of the rotor and fixed to the rotor, of an intermediate part with a curved profile, extending towards the axis of the rotor, and of an end part substantially perpendicular to the axis of the rotor and extending towards the outside of the rotor; and in that the key comprises, on its stem, a notch whose profile encompasses that of the intermediate part and of the end part of the elastic blade, so that, after introduction of the key, the elastic blade, housed in said notch, is not subject to any constraint.

Selon un mode de réalisation, la partie intermédiaire comprend, entre la première partie de la lame et la partie d'extrémité, une partie oblique inclinée vers l'axe du rotor, et un coude.According to one embodiment, the intermediate part comprises, between the first part of the blade and the end part, an oblique part inclined towards the axis of the rotor, and an elbow.

Selon un mode de réalisation, le rotor présente un logement longitudinal pour recevoir la lame élastique et une entretoise de maintien de la première partie de la lame élastique.According to one embodiment, the rotor has a longitudinal housing to receive the elastic blade and a spacer for holding the first part of the elastic blade.

Selon un mode de réalisation, l'entretoise assure l'obturation du logement à l'exception d'un espace autorisant le passage de l'extrémité libre de la lame élastique.According to one embodiment, the spacer seals the housing except for a space allowing the free end of the elastic strip to pass.

Selon un mode de réalisation, en l'absence de contrainte, le coude de la lame élastique est en saillie vers l'intérieur du rotor et l'extrémité libre de la lame élastique est en position rentrée, logée dans l'épaisseur du rotor.According to one embodiment, in the absence of constraint, the elbow of the elastic blade projects towards the inside of the rotor and the free end of the elastic blade is in the retracted position, housed in the thickness of the rotor.

Selon un mode de réalisation, en présence d'une tige de clé sans échancrure, la lame élastique est soumise à une contrainte et son extrémité libre fait saillie du rotor et entre dans le créneau du stator pour empêcher la rotation du rotor.According to one embodiment, in the presence of a key rod without indentation, the elastic blade is subjected to a stress and its free end protrudes from the rotor and enters the crenel of the stator to prevent the rotation of the rotor.

Selon un mode de réalisation, le logement recevant la lame élastique est placé dans une zone de rotor non pourvue de logements de goupilles.According to one embodiment, the housing receiving the elastic blade is placed in a rotor zone not provided with pin housings.

Selon un mode de réalisation, au-delà de la première partie, la lame élastique est divisée, selon son plan médian contenant l'axe du rotor, en deux lamelles dissymétriques, dont les parties d'extrémité coopèrent avec des créneaux distincts du stator.According to one embodiment, beyond the first part, the elastic blade is divided, along its median plane containing the axis of the rotor, into two asymmetrical strips, the end parts of which cooperate with separate slots of the stator.

Selon un mode de réalisation, la clé comporte à son extrémité une rampe inclinée pour contraindre la partie d'extrémité de la lame élastique vers l'extérieur lors de l'introduction de la clé.According to one embodiment, the key comprises at its end an inclined ramp to constrain the end part of the elastic blade outwards during the introduction of the key.

Selon un mode de réalisation, en fin d'introduction de la clé, l'échancrure de la clé assure la suppression de la contrainte sur la lame élastique et la libération du rotor par l'extrémité libre de la lame élastique.According to one embodiment, at the end of the introduction of the key, the notch of the key ensures the removal of the stress on the elastic blade and the release of the rotor by the free end of the elastic blade.

Selon un mode de réalisation, la tige de clé portant l'échancrure est de tout type : plate, ronde, ou de contour polygonal.According to one embodiment, the key shank carrying the indentation is of any type: flat, round, or of polygonal contour.

Selon un mode de réalisation, la tige de clé comporte deux échancrures décalées axialement et situées de part et d'autre de son plan médian.According to one embodiment, the key shank has two notches axially offset and located on either side of its median plane.

L'invention est décrite avec référence aux dessins annexés dans lesquels :

  • [Fig. 1] est une vue éclatée des éléments essentiels d'une serrure à lame élastique selon l'invention ;
  • [Fig. 2] est une vue en perspective d'un exemple de réalisation de la lame élastique ;
  • [Fig. 3] est une vue en coupe axiale de l'insertion initiale de la clé dans le rotor ;
  • [Fig. 4] est une vue en coupe axiale de l'insertion partielle dans le rotor d'une clé à échancrure selon l'invention ;
  • [Fig. 5] est une vue après insertion totale de la clé à échancrure selon l'invention ;
  • [Fig. 6] est une vue de côté montrant les positions extrêmes de la lame élastique au cours de l'insertion de la clé selon l'invention.
  • [Fig. 7] est une vue de côté d'un mode de réalisation de la lame élastique ;
  • [Fig. 8] est une vue en perspective de la lame élastique de la Fig. 7.
The invention is described with reference to the accompanying drawings in which:
  • [ Fig. 1 ] is an exploded view of the essential elements of an elastic blade lock according to the invention;
  • [ Fig. 2 ] is a perspective view of an embodiment of the elastic blade;
  • [ Fig. 3 ] is an axial sectional view of the initial insertion of the key into the rotor;
  • [ Fig. 4 ] is a view in axial section of the partial insertion into the rotor of a notch key according to the invention;
  • [ Fig. 5 ] is a view after full insertion of the notch key according to the invention;
  • [ Fig. 6 ] is a side view showing the extreme positions of the elastic blade during the insertion of the key according to the invention.
  • [ Fig. 7 ] is a side view of one embodiment of the elastic blade;
  • [ Fig. 8 ] is a perspective view of the elastic blade of the Fig. 7 .

La serrure à cylindre selon les Fig. 1 à Fig. 6 comporte essentiellement un stator 1, un rotor 2, et une clé 3. Le rotor 2 comporte un logement 4 longitudinal oblong pour recevoir une lame élastique 5. La lame élastique 5 est constituée d'une première partie 6, d'une deuxième partie 7 oblique par rapport à la première partie 6, d'un coude 8 et d'une partie 9 d'extrémité sensiblement perpendiculaire à la première partie 6. Le logement 4 est entièrement ouvert vers l'extérieur du rotor 2.The cylinder lock according to Fig. 1 to Figs. 6 essentially comprises a stator 1, a rotor 2, and a key 3. The rotor 2 comprises an oblong longitudinal housing 4 to receive an elastic blade 5. The elastic blade 5 consists of a first part 6, a second part 7 oblique with respect to the first part 6, an elbow 8 and an end part 9 substantially perpendicular to the first part 6. The housing 4 is entirely open towards the outside of the rotor 2.

Vers l'intérieur du rotor 2, le logement 4 est partiellement ouvert, et il présente une tablette 10 d'appui pour recevoir la première partie 6 de la lame élastique 5. La tablette 10 est par exemple cylindrique et coaxiale au rotor, ou plane et parallèle à l'axe du rotor. La lame élastique 5 est fixée sur la tablette 10 au moyen d'une entretoise 11 portant un doigt 12. La première partie 6 de la lame élastique 5 comporte un orifice 13, et la tablette 10 comporte un orifice 14 correspondant. La lame élastique 5 est placée dans le logement 4 avec sa première partie 6 en appui sur la tablette 10, son orifice 13 au-dessus de l'orifice 14 de la tablette, sa deuxième partie 7 et son coude 8 en saillie vers l'intérieur du rotor 2, et sa partie d'extrémité 9 orientée vers l'extérieur du rotor 2. Le maintien de la première partie 6 de la lame élastique 5 sur la tablette 10 est assuré au moyen de l'entretoise 11 dont le doigt 12 est inséré dans les orifices 13 de la première partie 6 de la lame élastique 5, et 14 de la tablette 10. L'entretoise 11 assure le maintien en position fixe sur la tablette 10 de la première partie 6 de la lame élastique 5 en laissant libre de mouvement le reste de la lame élastique. L'entretoise 11 assure l'obturation du logement 4 sur la surface extérieure du rotor 2, à l'exception d'un espace en forme de fente 15 perpendiculaire à l'axe du rotor, et correspondant au passage de la partie d'extrémité 9 de la lame élastique 5. L'entretoise 11 assure l'obturation du logement 4 de sorte que, à la rotation du rotor, les goupilles de variations disposées dans le stator soient maintenues en position et n'empêchent pas la rotation du rotor.Towards the inside of the rotor 2, the housing 4 is partially open, and it has a support tablet 10 to receive the first part 6 of the elastic blade 5. The tablet 10 is for example cylindrical and coaxial with the rotor, or flat and parallel to the axis of the rotor. The elastic blade 5 is fixed on the tablet 10 by means of a spacer 11 carrying a finger 12. The first part 6 of the elastic blade 5 comprises an orifice 13, and the tablet 10 comprises a corresponding orifice 14. The elastic blade 5 is placed in the housing 4 with its first part 6 resting on the tablet 10, its orifice 13 above the orifice 14 of the tablet, its second part 7 and its elbow 8 projecting towards the interior of the rotor 2, and its end part 9 facing the outside of the rotor 2. The maintenance of the first part 6 of the elastic blade 5 on the shelf 10 is ensured by means of the spacer 11 whose finger 12 is inserted into the orifices 13 of the first part 6 of the elastic blade 5, and 14 of the tablet 10. The spacer 11 ensures that the first part 6 of the elastic blade 5 is held in a fixed position on the tablet 10, leaving free movement of the rest of the elastic blade. The spacer 11 closes off the housing 4 on the outer surface of the rotor 2, with the exception of a slot-shaped space 15 perpendicular to the axis of the rotor, and corresponding to the passage of the end part 9 of the elastic blade 5. The spacer 11 seals the housing 4 so that, when the rotor rotates, the variation pins arranged in the stator are held in position and do not prevent the rotation of the rotor.

Le stator 1 et le rotor 2 sont équipés de plusieurs jeux de goupilles (trois dans l'exemple représenté). Le logement 4 dans le rotor 2, est disposé dans une zone non pourvue de logements de goupilles pour éviter toute interaction entre le système de goupilles et la lame élastique 5. Le logement 4 oblong est placé près de la face 16 d'accès au rotor 2, avec la fente 15 du côté de la face 16. Dans le stator 1, en regard de la fente 15 du rotor, est disposé un créneau 17 apte à recevoir l'extrémité de la lame élastique en cas de déplacement vers l'extérieur de la partie d'extrémité 9 de la lame 5 élastique.The stator 1 and the rotor 2 are equipped with several sets of pins (three in the example shown). The housing 4 in the rotor 2, is arranged in a zone not provided with pin housings to avoid any interaction between the pin system and the elastic blade 5. The oblong housing 4 is placed near the face 16 of access to the rotor 2, with the slot 15 on the side of the face 16. In the stator 1, facing the slot 15 of the rotor, there is a slot 17 capable of receiving the end of the elastic blade in the event of movement towards the outside. of the end portion 9 of the elastic blade 5.

La clé 3 présente une tige de clé de forme quelconque, plate, ronde ou de contour polygonal comme dans l'exemple représenté. Sur la partie de la tige de clé destinée à se trouver en face du logement 4 oblong et de la lame élastique 5, est prévue une échancrure 18 dont le profil englobe celui de la deuxième partie 7 oblique et du coude 8 de la lame élastique 5. Par ailleurs, la pointe de la tige de clé présente une rampe inclinée 19 destinée à coopérer avec la lame élastique 5 lors de l'introduction de la clé 3 dans le rotor 2. En effet, en l'absence de clé, la lame élastique 5 fait saillie à l'intérieur du rotor 2, et la partie d'extrémité 9 de la lame élastique 5 ne sort pas de la fente 15. Lors de l'introduction de la clé 3, la rampe inclinée 19 arrive au contact du coude 8 de la lame élastique 5. La progression de la clé 3 dans le rotor 2 fait remonter le coude 8 en contraignant la lame élastique (5a, Fig. 6), et la partie d'extrémité 9 de la lame 5 fait saillie hors de la fente 15 et s'insère dans le créneau 17 du stator 1 (Fig. 4). En fin de progression de la clé 3, l'échancrure 18 est placée sous la lame élastique 5 qui peut reprendre sa position initiale (5, Fig. 6). Dans cette position sans contrainte, la lame élastique 5 est de nouveau rentrée à l'intérieur du rotor 2 et sa partie d'extrémité 9 est sortie du créneau 17 du stator et se trouve de nouveau entièrement dans le volume du rotor 2, (Fig. 5).The key 3 has a key stem of any shape, flat, round or of polygonal contour as in the example shown. On the stem part of key intended to be located opposite the oblong housing 4 and the elastic blade 5, there is provided a notch 18 whose profile encompasses that of the second oblique part 7 and of the elbow 8 of the elastic blade 5. Furthermore, the tip of the the key rod has an inclined ramp 19 intended to cooperate with the elastic blade 5 during the introduction of the key 3 into the rotor 2. Indeed, in the absence of a key, the elastic blade 5 protrudes at the inside the rotor 2, and the end part 9 of the elastic blade 5 does not come out of the slot 15. When the key 3 is inserted, the inclined ramp 19 comes into contact with the elbow 8 of the elastic blade 5 The progress of the key 3 in the rotor 2 raises the elbow 8 by constraining the elastic blade (5a, Fig. 6 ), and the end part 9 of the blade 5 projects out of the slot 15 and fits into the slot 17 of the stator 1 ( Fig. 4 ). At the end of the progress of the key 3, the notch 18 is placed under the elastic blade 5 which can return to its initial position (5, Fig. 6 ). In this unconstrained position, the elastic blade 5 is again retracted inside the rotor 2 and its end part 9 has come out of the notch 17 of the stator and is once again entirely within the volume of the rotor 2, ( Fig. 5 ).

De ce fait, la rotation du rotor est autorisée. Il est avantageux que le profil de l'échancrure 18 de la clé 3 et le profil de la lame élastique 5, en particulier de sa deuxième partie 7 oblique et de son coude 8, soient concordants, de façon que leurs mouvements relatifs à l'introduction et à la sortie de la clé soient continus et sans à-coup.Due to this, the rotation of the rotor is allowed. It is advantageous that the profile of the notch 18 of the key 3 and the profile of the elastic blade 5, in particular of its second oblique part 7 and of its elbow 8, are concordant, so that their movements relative to the insertion and exit of the key are continuous and smooth.

Le rôle de la lame élastique n'est pas d'assurer un verrouillage supplémentaire de la serrure. Essentiellement, la lame élastique empêche la rotation du rotor au moyen d'une clé ne présentant pas l'échancrure 18 permettant de libérer la lame de toute contrainte.The role of the elastic blade is not to provide additional locking of the lock. Essentially, the elastic blade prevents the rotation of the rotor by means of a key not having the notch 18 making it possible to release the blade from any constraint.

Dans l'exemple de réalisation des Fig. 7 et Fig. 8, la lame élastique 5 comporte une première partie 6 avec son orifice 13 de fixation sur la tablette 10 du rotor. Au-delà de la première partie 6, la lame élastique 5 est divisée, selon son plan médian contenant l'axe du rotor, en deux lamelles dissymétriques 21 et 22.In the embodiment of the Fig. 7 and Figs. 8 , the elastic blade 5 comprises a first part 6 with its orifice 13 for fixing to the shelf 10 of the rotor. Beyond the first part 6, the elastic blade 5 is divided, along its median plane containing the axis of the rotor, into two asymmetrical blades 21 and 22.

Les deux lamelles ont la même forme générale que la lame élastique 5, mais des dimensions différentes, et leurs parties d'extrémité coopèrent avec deux créneaux distincts du stator. Ainsi, la partie oblique et la partie d'extrémité de la lamelle 21 sont plus grandes que celles de la lamelle 22. Corrélativement, le stator comporte deux créneaux, tels que le créneau 17, décalés axialement et situés de part et d'autre, de son plan médian, et la tige de clé comporte deux échancrures, telles que l'échancrure 18, décalées axialement et situées de part et d'autre de son plan médian. Ainsi, dans le cas d'une clé ne comportant pas les deux échancrures, d'une part, situées de part et d'autre du plan médian de la lame élastique, d'autre part, décalées axialement, il y a au moins l'une des parties d'extrémité des deux lamelles qui empêche la rotation du rotor.The two blades have the same general shape as the elastic blade 5, but different dimensions, and their end parts cooperate with two separate stator slots. Thus, the oblique part and the end part of the lamella 21 are larger than those of the lamella 22. Correlatively, the stator has two slots, such as the slot 17, axially offset and located on either side, from its median plane, and the key shank has two notches, such as the notch 18, axially offset and located on either side of its median plane. Thus, in the case of a key not comprising the two notches, on the one hand, located on either side of the median plane of the elastic blade, on the other hand, axially offset, there is at least l one of the end portions of the two slats which prevents rotation of the rotor.

Dans les exemples de réalisation décrits, la lame élastique 5 comprend une première partie 6 fixée au rotor et sensiblement parallèle à l'axe du rotor 2, et une partie d'extrémité 9 sensiblement perpendiculaire à la première partie, c'est-à-dire à l'axe du rotor. Entre ces deux parties 6 et 9, la lame 5 comporte une partie intermédiaire 20 décrite sous la forme d'une partie oblique 7 et d'un coude 8. Cette forme n'est pas impérative et cette partie intermédiaire 20 est avantageusement à profil courbe, et s'étendant vers l'axe du rotor par rapport à la première partie fixe.In the embodiments described, the elastic blade 5 comprises a first part 6 fixed to the rotor and substantially parallel to the axis of the rotor 2, and an end part 9 substantially perpendicular to the first part, that is to say say to the axis of the rotor. Between these two parts 6 and 9, the blade 5 comprises an intermediate part 20 described in the form of an oblique part 7 and an elbow 8. This shape is not imperative and this intermediate part 20 is advantageously with a curved profile , and extending towards the axis of the rotor with respect to the first fixed part.

Claims (12)

  1. A cylinder lock with control key, including a stator (1), security pins, a rotor (2) and a key (3), the rotor rotating in the stator under the action of the key (3), and, as additional means for authorizing the rotation of the rotor, an elastic leaf (5), the median plane of which contains the axis of the rotor, one end of which is attached in the rotor and the other end of which is free in radial movement, the free end of the elastic leaf (5) being movable between an unstressed position, where it is completely housed in the rotor (2) and where it allows the rotation of the rotor, and a stressed position, where it protrudes from the rotor (2) and where it cooperates with a slot (17) of the stator (1) to prevent the rotation of the rotor, characterized in that the elastic leaf (5) is made up of a first part (6) parallel to the axis of the rotor and attached to the rotor (2), an intermediate part (20) with a curved profile, extending toward the axis of the rotor (2), and an end part (9) substantially perpendicular to the axis of the rotor and extending toward the outside of the rotor (2); and in that the key (3) includes, on its blade, an indentation (18) whose profile encompasses that of the intermediate part (20) and the end part (9) of the elastic leaf (5), such that, after introduction of the key (3), the elastic leaf (5), housed in said indentation (18), is not subject to any stress.
  2. The lock according to claim 1, characterized in that the intermediate part (20) comprises, between the first part (6) of the leaf (5) and the end part (9), an oblique part (7) inclined toward the axis of the rotor, and an elbow (8).
  3. The lock according to claim 1, characterized in that the rotor (2) has a longitudinal housing (4) for receiving the elastic leaf (5) and a spacer (11) for maintaining the first part (6) of the elastic leaf (5).
  4. The lock according to claim 3, characterized in that the spacer (11) ensures the sealing of the housing (4) with the exception of a space allowing the passage of the free end of the elastic leaf (5).
  5. The lock according to claim 2, characterized in that in the absence of stress, the elbow (8) of the elastic leaf (5) protrudes toward the inside of the rotor (2) and the free end of the elastic leaf is in the withdrawn position, housed in the thickness of the rotor.
  6. The lock according to claim 1, characterized in that in the presence of a key blade devoid of indentation, the elastic leaf (5) is subject to stress and its free end protrudes from the rotor (2) and enters the slot (17) of the stator (1) to prevent the rotor from rotating.
  7. The lock according to claim 1, characterized in that the housing (4) receiving the elastic leaf (5) is placed in a zone of the rotor (2) not provided with housings for pins.
  8. The lock according to claim 1, characterized in that, beyond the first part (6), the elastic leaf (5) is divided, along its median plane containing the axis of the rotor (2), into two asymmetrical lamellae (21, 22), the end parts of which cooperate with separate slots of the stator.
  9. The lock according to claim 1, characterized in that the key (3) includes, at its end, an inclined ramp (19) to stress the end part (9) of the elastic leaf (5) to the outside during introduction of the key.
  10. The lock according to claim 9, characterized in that at the end of introduction of the key (3), the indentation (18) of the key ensures the elimination of the stress on the elastic leaf (5) and the release of the rotor (2) by the free end of the elastic leaf (5).
  11. The lock according to claim 9, characterized in that the key blade bearing the indentation (18) is of any type: flat, round, or of polygonal contour.
  12. The lock according to claim 8, characterized in that the key blade includes two indentations that are axially offset and located on either side of its median plane.
EP20189761.8A 2019-08-27 2020-08-06 Lock with cylinder Active EP3786395B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1909415A FR3100260B1 (en) 2019-08-27 2019-08-27 Cylinder lock

Publications (2)

Publication Number Publication Date
EP3786395A1 EP3786395A1 (en) 2021-03-03
EP3786395B1 true EP3786395B1 (en) 2022-07-06

Family

ID=68581997

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20189761.8A Active EP3786395B1 (en) 2019-08-27 2020-08-06 Lock with cylinder

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EP (1) EP3786395B1 (en)
DK (1) DK3786395T3 (en)
ES (1) ES2927310T3 (en)
FR (1) FR3100260B1 (en)
PT (1) PT3786395T (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU221976U1 (en) * 2023-06-06 2023-12-04 Максим Николаевич Филиппов CYLINDER LOCK ROTOR LOCKING DEVICE

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2792822B1 (en) * 2013-04-16 2018-10-24 C. Ed. Schulte Gesellschaft mit beschränkter Haftung Zylinderschlossfabrik Coding via blocking bar

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR595730A (en) 1925-01-09 1925-10-08 Safety barrel for various keys
US3621682A (en) 1969-11-17 1971-11-23 Indak Mfg Corp Lock mechanisms for switches or the like
FR2185096A5 (en) 1972-05-17 1973-12-28 Neiman Exploitation Brevets
US3881333A (en) * 1974-08-28 1975-05-06 William Christmas Lock for window sashes
DE3216481A1 (en) * 1982-04-30 1983-11-03 Fa. Aug. Winkhaus, 4404 Telgte Key-actuated lock cylinder
FR2868803B1 (en) * 2004-04-07 2006-06-30 Ronis Sa Sa SIMPLIFIED BARREL LOCK
US9512638B2 (en) * 2014-02-07 2016-12-06 Schlage Lock Company Llc Leaf spring lock cylinder

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2792822B1 (en) * 2013-04-16 2018-10-24 C. Ed. Schulte Gesellschaft mit beschränkter Haftung Zylinderschlossfabrik Coding via blocking bar

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU221976U1 (en) * 2023-06-06 2023-12-04 Максим Николаевич Филиппов CYLINDER LOCK ROTOR LOCKING DEVICE

Also Published As

Publication number Publication date
FR3100260B1 (en) 2021-10-01
PT3786395T (en) 2022-09-23
EP3786395A1 (en) 2021-03-03
DK3786395T3 (en) 2022-09-26
FR3100260A1 (en) 2021-03-05
ES2927310T3 (en) 2022-11-04

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