EP3788219B1 - Verrou de sécurité et clé de fonctionnement pour ce verrou - Google Patents

Verrou de sécurité et clé de fonctionnement pour ce verrou

Info

Publication number
EP3788219B1
EP3788219B1 EP19725229.9A EP19725229A EP3788219B1 EP 3788219 B1 EP3788219 B1 EP 3788219B1 EP 19725229 A EP19725229 A EP 19725229A EP 3788219 B1 EP3788219 B1 EP 3788219B1
Authority
EP
European Patent Office
Prior art keywords
pin
ring
key
cylinder
diameter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19725229.9A
Other languages
German (de)
English (en)
Other versions
EP3788219A1 (fr
Inventor
Sergio Mottura
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.)
Mottura Serrature di Sicurezza SpA
Original Assignee
Mottura Serrature di Sicurezza SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mottura Serrature di Sicurezza SpA filed Critical Mottura Serrature di Sicurezza SpA
Priority to EP26160006.8A priority Critical patent/EP4722477A1/fr
Publication of EP3788219A1 publication Critical patent/EP3788219A1/fr
Application granted granted Critical
Publication of EP3788219B1 publication Critical patent/EP3788219B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B35/00—Locks for use with special keys or a plurality of keys ; keys therefor
    • E05B35/003—Locks for use with special keys or a plurality of keys ; keys therefor for keys with movable bits
    • E05B35/004—Locks for use with special keys or a plurality of keys ; keys therefor for keys with movable bits pivoting about an axis perpendicular to the main key axis
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • 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 a safety lock and the key for operating the same.
  • the lock described herein is a cylinder lock of the type comprising:
  • the operating key has a body, mounted on which is a ring, which is mobile with its own axis with respect to the body of the key and is designed, when the key is inserted into the aforesaid passage, to be engaged at diametrally opposite points by the aforesaid first and second pins in the cylinder.
  • the ring defines a pre-set distance such as to set the first and second pins in a relative position in which they enable free rotation of the cylinder within the lock body.
  • the aim of the present invention is to improve known systems of the type referred to above, in particular from the security standpoint.
  • the safety system described herein comprises a cylinder lock and the key for operating the same.
  • the reference number 10 designates as a whole a cylinder lock mounted in a door 3 of a dwelling (illustrated only partially) and associated to a key 100 having a grip 102 and a plate-like body 104 with two opposite faces 105 and two longitudinal edges 107.
  • the cylinder lock 10 comprises a body 2 or stator traversed by a cylindrical passage 2A within which a rotor or cylinder 4 is rotatably mounted about an axis of rotation I.
  • Figure 1 illustrates how the body 2 is made up of two parts 2', 2'' that are the same as one another and symmetrical with respect to a plane of symmetry P orthogonal to the axis of rotation I.
  • the half 2'' of the body 2 is provided with a cylinder that is the same as and symmetrical with respect to the cylinder 4, for engagement of a key on the side of the door opposite to the one illustrated on which the cylinder 4 is provided.
  • the body 2 has a threaded hole 22 for engagement of a screw for fixing the lock to the door.
  • the present invention can also be applied to cylinder locks of a non-European type, and hence also to locks that include a single rotatable cylinder accessible only on one side of the door.
  • drawings do not show the usual rotatable door bolt, which is connected in rotation to the cylinder 4 and is set in the space 2C defined between the two parts 2', 2'' of the stator, for control of opening and closing of the door.
  • a passage 8 which extends axially through the cylinder, for introduction of the key 100.
  • the blocking pins 6 co-operate with corresponding counterpins 12 slidably mounted radially in the body 2 and recalled by springs 14 against the blocking pins 6.
  • the blocking pins 6 have end tips designed to co-operate with a shaped profile of the key 100, which in the example illustrated is defined by a plurality of cavities 103 made on one or both of the faces 105 of the key 100.
  • the key authorized to open the lock is able, once it has been introduced into the passage 8, to cause axial displacement of the blocking pins 6 into the operating positions illustrated in Figure 3 , where they do not project beyond the outer surface of the cylinder 4, so that they do not prevent rotation of the cylinder 4 with respect to the body 2.
  • the lock described herein is moreover provided with two pins 16, 18 mounted in the cylinder 4 within respective holes, which are made on opposite sides with respect to the passage 8 and give out into the passage.
  • the pin 16 is able to slide along its own axis and co-operates with a corresponding counterpin 22 slidably mounted radially in the body 2 and recalled by a spring 14' against the pin 16.
  • the counterpin 22 pushed by the spring inserts into the hole of the cylinder 4 within which the pin 16 is housed, thus preventing rotation of the cylinder.
  • the pin 18 is mounted in the respective hole substantially without the possibility of moving along its own axis.
  • the pins 16 and 22 define a particular blocking condition that cannot be disabled simply by a notch made on the key, like the aforesaid cavities 103.
  • the pin 16 has a length that is not sufficient, following upon insertion of a key provided with a corresponding notch that engages it, for it to be brought flush with the interface between the cylinder 4 and the stator body 2 so as to unblock the cylinder, in the way that has been described above for the pins 6 and 12.
  • the body of the key must present an appropriate projecting portion.
  • This portion is defined by a cylindrical ring 30, carried by the body 104 of the key, which is mobile with its own axis in a direction transverse to the longitudinal plane defined by the body 104.
  • the ring 30 is free to move in a transverse direction with respect to the key, so as to centre itself within the passage 8 so as not to hinder the key while it is being inserted.
  • the ring 30 is moreover free to rotate about its own axis, this facilitating insertion of the key into the passage 8.
  • the ring 30 may also have the possibility of moving in the longitudinal direction of the key, once again in order not to hinder insertion of the key into the passage 8.
  • the ring 30 When the key is inserted, the ring 30 will be engaged by the pin 18, on one side, and by the pin 16, on the opposite side.
  • the pin 18 has a length such as to act on the ring 30 by contrast, pushing it against the pin 16 and getting it to project from the key on the side of the aforesaid pin 16.
  • the ring 30 defines a distance between the pin 18 and the pin 16 that is such as to set the latter flush with the cylinder 4, and to set, accordingly, the pin 22 outside of the cylinder in a position of noninterference ( Figure 5 ).
  • the ring 30 has a cylindrical outer surface that defines a first diameter, provided on which is a circumferential groove 32 that defines with its bottom a second diameter, smaller than the first diameter.
  • At least one between the pin 16 and the pin 18 - in the solution illustrated the fixed pin 18 - is provided with a shaped tip 18A facing the passage 8 and configured for engaging the groove 32, moving into contact with its bottom.
  • the aforesaid pre-set distance is represented by the distance between the bottom of the groove 32, on the side engaged by the pin 18, and the outer surface of the ring 30, on the side engaged by the pin 16.
  • the aforesaid distance corresponds to the diameter defined by the bottom of the groove 32 plus half of the difference between the outer diameter of the ring 30 and the diameter defined by the bottom of the groove 32.
  • the pre-set distance in question is the same also in the case where it is the pin 16, instead of the fixed pin 18, that is provided with a shaped tip as indicated above.
  • the aforesaid pre-set distance corresponds precisely to the diameter defined by the bottom of the groove 32.
  • the ring 30 is mounted on the key, preferably it is mounted on a cylindrical pin 31, within a through opening 112 made on the body 104 of the key.
  • the ring 30 has a diameter considerably larger than the pin 31 and is mobile within the opening 112 orthogonally to the longitudinal plane identified by the body 104.
  • the opening 112 has a width - measured in the transverse direction - substantially corresponding to the width of the ring 30, taking into account the tolerances necessary for enabling the ring to move freely in a direction transverse to the body of the key.
  • the ring 30 is guided laterally in the above movement by the walls of the opening 112 and is substantially fixed in position with respect to a direction transverse to the longitudinal direction of the body of the key.
  • the opening 112 is constituted by an axial slit made on the tip of the body 104 of the key.
  • the degree of the movement, in the transverse and longitudinal directions referred to above, to which the ring 30 may be subject with respect to the key is a function of the difference between the inner diameter of the ring and the outer diameter of the cylindrical pin 31.
  • the ring 30 is positioned in an axial direction of the key parallel to and not coinciding with the direction in which the shaped profile defined by the cavities 103 is located.
  • the pin 22 is positioned in the lock body 2 aligned to the counterpins 12.
  • the pin 16 that is in contact with the pin 22 at an end thereof is consequently mounted in the cylinder 4 oriented with its own axis inclined with respect to the axis of the pin 22 so that its opposite end is able to reach the ring 30 in the passage 8.
  • the pin 18 is, instead, positioned in the cylinder 4 with its own axis parallel to the axis of the pin 22.
  • the ring 30 is set along a plane of symmetry of the body of the key orthogonal to the longitudinal plane identified by the latter.
  • the ring 30 can operate indifferently for both of the two opposite orientations of the key about its own longitudinal axis.
  • the key is provided with two rings 30, which are each to operate for a respective orientation of the key.
  • the safety system described herein affords a greater protection against non-authorized duplications of the key and, in general, is able to counter more effectively possible attempts at burglary.
  • the ring 30, with the corresponding groove 32 and the pins 16 and 18, determine a pre-set distance that cannot be directly detected from an examination of the key alone, given that it depends also upon the shaped tip that is designed to engage the groove 32, which may be provided on one or both of the pins 16 and 18.
  • Figure 7 illustrates schematically how an operating key according to the prior art that is provided with a ring without groove is not able in any way to position the pin 16 properly flush with the cylinder 4 in so far as in this case the distance defined by the ring between the pin 18 and the pin 16 is greater than the pre-set distance referred to above, so that the pin 16 is brought outside of the cylinder thus preventing rotation thereof.
  • the authorized key described herein may also be able to operate a lock according to the prior art, the blocking pins of which are without a shaped tip designed to engage the groove 32 of the ring 30 of the key in so far as in this case the outer diameter of the ring 30 corresponds, instead, to the pre-set distance specifically envisaged for operating the lock according to the prior art.

Landscapes

  • Lock And Its Accessories (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Jib Cranes (AREA)
  • Centrifugal Separators (AREA)

Claims (7)

  1. Un système de sécurité comprenant un cylindre de serrure (10) et une clé (100) pour actionner ledit cylindre de serrure,
    dans lequel ledit cylindre de serrure (10) comprend
    :
    - un corps de serrure ou stator (2), et
    - un cylindre ou rotor (4), monté rotatif dans le corps de serrure (2) et ayant un passage (8) pour l'introduction de ladite clé (100),
    dans lequel, dans ledit cylindre (4)
    un premier goupille (16) est monté coulissant dans une première cavité qui débouche sur ledit passage (8) depuis un premier côté ;
    une seconde goupille (18) est montée dans une seconde cavité qui débouche sur ledit passage (8) sur un second côté opposé audit premier côté, dans lequel ladite seconde goupille (18) est montée dans la seconde cavité sans possibilité de mouvement le long de son propre axe ;
    une troisième goupille (22) est montée coulissante dans une cavité du stator et est conçue pour coopérer avec ladite première goupille (16) dans une position neutre du cylindre dans laquelle ladite première cavité du cylindre (4) est alignée avec ladite cavité dans le corps de serrure (2), ladite troisième goupille (22) étant poussée par un élément élastique contre ledit cylindre (4) ;
    dans lequel ladite clé a un corps (104), sur lequel est monté un anneau (30), qui est mobile selon son propre axe par rapport au corps de la clé, et est conçu, lorsque ladite clé est insérée dans ledit passage (8), pour être engagé sur des points diamétralement opposés, par ladite première goupille (16) et ladite seconde goupille (18) dans ledit cylindre,
    dans lequel ladite seconde goupille (18) a une longueur telle qu'elle agit sur l'anneau (30) par contraste, le poussant contre la première goupille (16) et amenant l'anneau (30) à faire saillie de la clé du côté de la première goupille (16) ;
    dans lequel ledit anneau (30) définit une distance prédéterminée de manière à positionner lesdites première et seconde goupilles (16, 18) dans une position relative dans laquelle la première goupille est positionnée à fleur du cylindre (4) et la troisième goupille (22) est positionnée à l'extérieur du cylindre dans une position de non-interférence, permettant ainsi la rotation libre du cylindre (4) dans ledit corps de serrure (2),
    ledit système étant caractérisé :
    en ce que ledit anneau (30) a une surface extérieure cylindrique définissant un premier diamètre, sur laquelle est prévue une gorge circonférentielle (32) qui définit avec son fond un second diamètre, inférieur audit premier diamètre,
    et en ce que ladite première goupille et/ou ladite seconde goupille est/sont pourvue(s) d'une pointe profilée faisant face audit passage (8) et configurée pour s'engager dans ladite gorge (32) dudit anneau (30) en venant au contact du fond de ladite gorge (32),
    ladite distance prédéterminée correspondant à l'un entre ledit second diamètre et ledit second diamètre plus la moitié de la différence entre ledit premier diamètre et ledit second diamètre, selon l'endroit où ladite pointe profilée est prévue.
  2. Le système selon la revendication 1, dans lequel ladite gorge (32) est prévue dans une position intermédiaire sur ladite surface cylindrique dudit anneau (30).
  3. Le système selon la revendication 1 ou la revendication 2, dans lequel ladite gorge (32) s'étend sur toute la circonférence dudit anneau (30).
  4. Le système selon l'une quelconque des revendications précédentes, dans lequel ledit corps (104) de ladite clé identifie un plan longitudinal principal et dans lequel ledit anneau (30) est mobile en translation dans une direction transversale audit plan principal.
  5. Le système selon la revendication 4, dans lequel ledit anneau (30) est monté sur une goupille cylindrique (31) à l'intérieur d'une ouverture traversante (112) réalisée dans ledit corps (104) de ladite clé, ledit anneau (30) ayant un diamètre intérieur supérieur au diamètre de ladite goupille (31) de manière à être mobile en translation dans un plan transversal à ladite goupille (31) .
  6. Le système selon la revendication 5, dans lequel ladite ouverture (112) est définie par une fente axiale réalisée sur l'extrémité dudit corps (104) de ladite clé.
  7. Le système selon la revendication 4, dans lequel ladite ouverture (112) a des parois aux côtés opposés dudit anneau (30) qui sont positionnées à une distance l'une de l'autre correspondant sensiblement à la largeur dudit anneau (30) de manière à le guider latéralement pendant son mouvement de translation.
EP19725229.9A 2018-05-04 2019-04-30 Verrou de sécurité et clé de fonctionnement pour ce verrou Active EP3788219B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP26160006.8A EP4722477A1 (fr) 2018-05-04 2019-04-30 Serrure de sécurité et clé pour son fonctionnement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102018000005083A IT201800005083A1 (it) 2018-05-04 2018-05-04 Serratura di sicurezza e relativa chiave di azionamento
PCT/IB2019/053523 WO2019211740A1 (fr) 2018-05-04 2019-04-30 Serrure de sécurité et clé permettant de la faire fonctionner

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP26160006.8A Division EP4722477A1 (fr) 2018-05-04 2019-04-30 Serrure de sécurité et clé pour son fonctionnement

Publications (2)

Publication Number Publication Date
EP3788219A1 EP3788219A1 (fr) 2021-03-10
EP3788219B1 true EP3788219B1 (fr) 2026-03-25

Family

ID=63014889

Family Applications (2)

Application Number Title Priority Date Filing Date
EP26160006.8A Pending EP4722477A1 (fr) 2018-05-04 2019-04-30 Serrure de sécurité et clé pour son fonctionnement
EP19725229.9A Active EP3788219B1 (fr) 2018-05-04 2019-04-30 Verrou de sécurité et clé de fonctionnement pour ce verrou

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP26160006.8A Pending EP4722477A1 (fr) 2018-05-04 2019-04-30 Serrure de sécurité et clé pour son fonctionnement

Country Status (4)

Country Link
EP (2) EP4722477A1 (fr)
IT (1) IT201800005083A1 (fr)
UA (1) UA128063C2 (fr)
WO (1) WO2019211740A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202000003844A1 (it) * 2020-02-25 2021-08-25 Securemme S R L Sistema di sicurezza, serratura e relativa chiave di azionamento

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO980491A1 (it) * 1998-06-05 1999-12-05 Mottura Serrature Di Sicurezza Serratura a cilindro.
EP2126256B1 (fr) * 2007-07-25 2013-04-17 "Mauer Locking Systems"Ltd Serrure à barillet et clé associée et clé brute destinée à celle-ci
NO2748426T3 (fr) * 2015-07-22 2018-03-24
CN205382782U (zh) * 2015-12-29 2016-07-13 迈多企业有限公司 一种子母珠锁心及开启子母珠锁心的滚珠钥匙

Also Published As

Publication number Publication date
EP4722477A1 (fr) 2026-04-08
WO2019211740A1 (fr) 2019-11-07
IT201800005083A1 (it) 2019-11-04
EP3788219A1 (fr) 2021-03-10
UA128063C2 (uk) 2024-03-27

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