WO2021176484A1 - Serrure à barillet et clé de celle-ci - Google Patents

Serrure à barillet et clé de celle-ci Download PDF

Info

Publication number
WO2021176484A1
WO2021176484A1 PCT/IT2020/000031 IT2020000031W WO2021176484A1 WO 2021176484 A1 WO2021176484 A1 WO 2021176484A1 IT 2020000031 W IT2020000031 W IT 2020000031W WO 2021176484 A1 WO2021176484 A1 WO 2021176484A1
Authority
WO
WIPO (PCT)
Prior art keywords
bushing
key
diameter
cylinder lock
primary
Prior art date
Application number
PCT/IT2020/000031
Other languages
English (en)
Inventor
Matteo Fabbri
Giovanni Ferri
Enzo Talamonti
Original Assignee
Cisa S.P.A.
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 Cisa S.P.A. filed Critical Cisa S.P.A.
Priority to EP20730336.3A priority Critical patent/EP4115036A1/fr
Priority to CN202080097552.2A priority patent/CN115315562A/zh
Priority to PCT/IT2020/000031 priority patent/WO2021176484A1/fr
Priority to TW110107912A priority patent/TW202140905A/zh
Publication of WO2021176484A1 publication Critical patent/WO2021176484A1/fr
Priority to ZA2022/10256A priority patent/ZA202210256B/en

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
    • E05B27/0003—Details
    • E05B27/0017—Tumblers or pins
    • E05B27/0021—Tumblers or pins having movable parts

Definitions

  • the present invention relates to a cylinder lock and to the key thereof.
  • the primary pins are associated with respective complementary pins which can translate elastically from a configuration of total accommodation within the stator to at least one configuration of simultaneous accommodation in the stator and in the rotor with consequent integral coupling of these two parts.
  • the key has a lever, which is accommodated so that it can rotate within a respective seat and which, when the key is inserted in the channel, actuates the primary pins, arranging them so that the complementary pins are in the configuration of total accommodation within the stator, allowing an optional movement of the rotor following a rotation of said key.
  • the aim of the present invention is to solve the problems described above, proposing a cylinder lock and the key thereof that have higher security standards against break-ins than those ensured by known technical solutions.
  • an object of the invention is to provide a cylinder lock and the key thereof that are compatible with locks and keys thereof of the known type.
  • Another object of the invention is to provide a cylinder lock that is constituted by a limited number of components that can be assembled in the assembly configuration in a substantially simple manner.
  • a further object of the present invention is to provide a cylinder lock and the key thereof that have low costs, are relatively simple to provide in practice and are safe in application.
  • a cylinder lock and a key thereof of the type comprising a stator within which a rotor can rotate which is provided with a longitudinal channel inside which respective primary pins are arranged substantially mutually opposite, said channel being adapted for the insertion of a key provided with a seat for the accommodation of a respective lever which can be oriented freely and is adapted to actuate said primary pins, characterized in that at least one of said primary pins is constituted by a bushing and a contoured grub which has at least one segment of its contour whose shape and dimensions are complementary to those of the internal cavity of said bushing; axially acting elastic means are interposed between said bushing and said grub for their respective mutual spacing without external forces applied to said bushing toward said grub; said stator comprises a recess whose shape and dimensions are complementary to those of the terminal front, in the radial direction, of said primary pin for the temporary accommodation of said front, said reces
  • Figure 1 is a schematic longitudinal sectional side view of a cylinder lock in which the key thereof is inserted according to the invention
  • Figure 2 is a sectional view, taken along the plane A-A of Figure 1, of the cylinder lock and of the key thereof of Figure 1;
  • Figure 3 is a sectional view, taken along the plane A-A of Figure 1, of the cylinder lock and of the key thereof of Figure 1 in a first opening step;
  • Figure 4 is a sectional view, taken along the plane A-A of Figure 1, of the cylinder lock and of the key thereof of Figure 1 in a second opening step;
  • Figure 5 is a schematic longitudinal sectional side view of a cylinder lock according to the invention in which a perforated false key is inserted
  • Figure 6 is a sectional view, taken along the plane B-B outlined in Figure 5, of the cylinder lock according to the invention in which a perforated false key is inserted;
  • Figure 7 is a sectional view, taken along the plane B-B of Figure 5, of the cylinder lock according to the invention in which a perforated false key is inserted in the locking configuration that is a consequence of a forced opening attempt;
  • Figure 8 is an enlarged-scale view of a detail of Figure 7;
  • Figure 9 is a schematic longitudinal sectional side view of a cylinder lock according to the invention in which a solid false key is inserted;
  • Figure 10 is a sectional view, taken along the plane C-C of Figure 9, of the cylinder lock according to the invention in which a solid false key is inserted;
  • Figure 11 is a sectional view, taken along the plane C-C of Figure 9, of the cylinder lock according to the invention in which a solid false key is inserted in the locking configuration that is a consequence of a forced opening attempt;
  • Figure 12 is a sectional view, taken along a transverse plane that passes through the axes of the primary pins, of a first cylinder lock according to the invention with a coded primary pin and a respective first key according to the invention with coded lever;
  • Figure 13 is a sectional view, taken along a transverse plane that passes through the axes of the primary pins, of a second cylinder lock according to the invention with a coded primary pin and a respective second key according to the invention with coded lever;
  • Figure 14 is a sectional view, taken along a transverse plane that passes through the axes of the primary pins, of a third cylinder lock according to the invention with a coded primary pin and a respective third key according to the invention with coded lever;
  • Figure 15 is a schematic longitudinal sectional side view of a cylinder lock in which a key according to the invention with incorrect lever coding is inserted;
  • Figure 16 is a sectional view, taken along the plane D-D of Figure 15, of the cylindrical lock according to the invention in which a key with incorrect coding of the lever is inserted;
  • Figure 17 is a sectional view, taken along the plane D-D of Figure 15, of the cylindrical lock according to the invention in which a key with incorrect coding of the lever is inserted in the locking configuration that is a consequence of a forced opening attempt;
  • Figure 18 is an enlarged-scale view of a detail of Figure 17.
  • the reference numeral 1 generally designates a cylinder lock and the reference numeral 2 designates the key thereof.
  • the cylinder lock 1 comprises a stator 3 within which a rotor 4 can rotate which is provided with a longitudinal channel 5 within which respective primary pins 6, 7 are substantially mutually opposite.
  • Both primary pins 6, 7 can slide transversely with respect to the channel 5 between respective configurations of different interference (even up to the elimination thereof) with said channel 5.
  • the channel 5 is adapted to receive a key 2 (inserted from the outside) provided with a seat 8 for the accommodation of a respective freely orientable lever 9.
  • the lever 9 is designed for the correct alignment of the primary pins 6, 7, since they are actuated by the lever 9 (on which they abut when the key 2 is inserted correctly in the channel 5) and are arranged in a specific coding configuration by it.
  • At least one of the primary pins 6 can conveniently be constituted by a bushing 10 and a contoured grub 11, which has at least one segment 12a, 12b of its contour whose shape and dimensions are complementary to those of the internal cavity 13 of the bushing 10.
  • the grub 11 and the bushing 10 can behave like a cylindrical pair in which the grub 11 can slide freely within the cavity 13 along a direction that is defined by the common axis of symmetry.
  • the stator 3 in turn, comprises a recess 15 whose shape and dimensions are complementary to those of the terminal front, in a radial direction, of the primary pin 6 for the temporary accommodation of said front.
  • the recess 15 is advantageously aligned with the hole 16 of the rotor 4 within which the bushing 10 and the grub 11 are arranged.
  • At least one elastic element 17 is efficiently interposed between the stator 3 and the at least one additional primary pin 7 in order to force it within the longitudinal channel 5.
  • the elastic means 14 and the elastic element 17 apply such an elastic action as to force the protrusion of the terminal end of the primary pins 6 and 7 into the longitudinal channel 5.
  • the hole 16 of the rotor 4 designed to accommodate the primary pin 6 can conveniently comprise consecutive portions of different diameter.
  • the grub 11 can validly comprise a head segment 12b which has a diameter that is substantially similar to the diameter of the internal cavity 13 of the bushing 10 (as already shown earlier), at least one intermediate recessed portion 22 whose diameter is smaller than the diameter of the internal cavity 13 of the bushing 10, at least one intermediate segment 12a whose diameter is substantially similar to the diameter of the internal cavity 13 of the bushing 10 (also already shown earlier), and at least one terminal portion 23 whose diameter is smaller than the diameter of the internal cavity 13 of the bushing 10.
  • a region with a smaller diameter can be formed between the segment 12a and the segment 12b.
  • the bushing 10 can in turn usefully comprise a substantially frustum-like terminal annular portion 24 whose diameter is complementary to the diameter of the at least one second extent 20 of the hole 16, a central cylindrical part 25 having a smaller diameter, and a terminal head 18 in turn provided with a cylindrical part 26 and a tapered end tab 27.
  • the smaller-diameter region formed between the segment 12a and the segment 12b of the grub 11 and the smaller-diameter central cylindrical part 25 of the bushing 10 have the function of facilitating the jamming of the primary pin 6 (of its components) upon an attempt to break into the lock 1.
  • the reduction in diameter allows the grub 11 to tilt with respect to the bushing 10 and allows the bushing 10 to tilt with respect to the hole 16, defining configurations for locking rotation if said rotation is imposed from the outside without using the appropriate key 2 according to the invention.
  • the elastic means 14 are interposed usefully between the bottom of the cavity 13 of the bushing 10 and the at least one intermediate segment 12a having a diameter that is substantially similar to the diameter of the internal cavity 13, so as to form an abutment shoulder for said elastic means 14.
  • the recess 15 of the stator 3 is delimited between two intersecting inclined planes 28 and 29, which are mutually blended at the bottom of said recess 15 and blended with the surface of the duct 30 of the stator 3 designed for the rotary accommodation of the rotor 4.
  • the recess 15 can be provided by milling (or in general by chip-forming machining) of the internal surface of the duct 30 of the stator 3: the milling can be localized exclusively at an area that is aligned with the hole 16 of the rotor 4 in the assembly configuration or, more probably, extend from the terminal face of the stator 3 up to said area.
  • the lever 9 can advantageously have a thickness that is variable, even locally and with discontinuity, according to a substantially coded shape, which depends on the geometry and arrangement of the end of the primary pins 6 and 7 which are substantially aligned therewith and abut against it.
  • the particular shape of the lever 9 conveniently defines a particular configuration for the resting of the ends of the primary pins 6 and 7 on its surface: in practice, the ends of the primary pins 6, 7 can be shaped appropriately in order to engage in corresponding complementarity shaped regions provided on the lever 9, allowing the overall arrangement of the lock 1 and of the key 2 thereof in the open configuration only upon the correct abutment of each shaped region in the corresponding complementarily shaped region.
  • the bushings 10 of the primary pins 6 can have a specific shape at their head 18, so as to allow correct coupling with the shaped regions (codes) provided on the lever 9.
  • the primary pin 7 can slide advantageously within a contoured channel 31 that is present in the rotor 4 and in the stator 3 (i.e., the channel 31 is extended in a radial direction from the stator 3 into the rotor 4 until it leads into the longitudinal channel 5).
  • the channel 31 comprises an external rotor portion 32 and an external stator portion 33; both portions 32, 33 have a diameter that is suitable to accommodate slidingly a base plate 34 of the primary pin 7.
  • the channel 31 furthermore comprises an internal portion 35 (of the rotor 4 and formed between the portion 32 and the longitudinal channel 5) that has a smaller diameter and is suitable to accommodate slidingly an elongated stem 36 of the primary pin 7.
  • the at least one elastic element 17 can be conveniently interposed between the bottom of the channel 31 and the base plate 33.
  • the elastic means 14 and the elastic element 17 can be constituted by helical springs having a shape, size and elastic constant that depend on the specific mechanical behavior that one seeks to assign to the lock 1.
  • the plate 33 constitutes in practice an abutment complementary pin for the primary pin 7.
  • the lever 9 can have a substantially flattened shape and can be pivoted within a seat 8 which is complementary to the contour of the lever 9, at a perimetric edge thereof.
  • the opposite edge of the lever 9 is the one that oscillates freely between extreme configurations of protrusion from the profile of the key 2.
  • the present invention solves the problems described earlier, proposing a cylinder lock 1 and the key 2 thereof that have security standards against break-ins that are higher than those ensured by known technical solutions.
  • the cylinder lock 1 and the key 2 thereof are compatible with the locks and associated keys of the known type that belong to the same product category.
  • the cylinder lock 1 is constituted by a limited number of components that can be assembled in the assembly configuration in a substantially simple manner.
  • the cylinder lock 1 and the key 2 thereof are relatively simple to provide in practice and substantially modest in cost: these characteristics make the lock 1 and the key 2 according to the invention innovations of assured application.
  • the invention thus conceived is susceptible of numerous modifications and variations, all of which are within the scope of the accompanying claims; all the details may furthermore be replaced with other technically equivalent elements.
  • the materials used, as well as the dimensions, may be any according to the requirements and the state of the art.
  • a cylinder lock and a key thereof of the type comprising a stator (3) within which a rotor (4) can rotate which is provided with a longitudinal channel (5) inside which respective primary pins (6, 7) are arranged substantially mutually opposite, said channel (5) being adapted for the insertion of a key (2) provided with a seat (8) for the accommodation of a respective lever (9) which can be oriented freely and is adapted to actuate said primary pins (6, 7), characterized in that at least one of said primary pins (6) is constituted by a bushing (10) and a contoured grub (11) which has at least one segment (12a, 12b) of its contour whose shape and dimensions are complementary to those of the internal cavity (13) of said bushing (10); axially acting elastic means (14) are interposed between said bushing (10) and said grub (11) for their respective mutual spacing in conditions of absence of external forces applied to said bushing (10) toward said grub (11); said stator (3) comprises a recess (15) whose shape and dimensions are complementary

Landscapes

  • Lock And Its Accessories (AREA)

Abstract

L'invention concerne une serrure à barillet (1) et une clé (2) de celle-ci, la serrure (1) comprenant un stator (3) à l'intérieur duquel un rotor (4) peut tourner qui est pourvu d'un canal longitudinal (5) à l'intérieur duquel des broches primaires respectives (6, 7) sont disposées sensiblement mutuellement opposées. Le canal (5) est conçu pour l'insertion d'une clé (2) pourvu d'un siège (8) destiné à recevoir un levier respectif (9) qui peut être orienté librement et qui est conçu pour actionner les broches primaires (6, 7). Au moins l'une des broches primaires (6) est constituée d'une douille (10) et d'une partie profilée (11) qui présente au moins un segment (12a, 12b) de son contour dont la forme et les dimensions sont complémentaires à celles de la cavité interne (13) de la douille (10). Des moyens élastiques à action axiale (14) sont interposés entre la douille (10) et la tête (11) pour leur espacement mutuel respectif dans des conditions d'absence de forces externes appliquées à la douille (10) vers la tête (11). Le stator (3) comprend un évidement (15) dont la forme et les dimensions sont complémentaires à celles de l'avant du terminal, dans une direction radiale, de la broche primaire (6) pour le logement temporaire de l'avant ; l'évidement (15) est aligné avec le trou (16) du rotor (4) à l'intérieur duquel la douille (10) et la tête (11) sont agencées. Au moins un élément élastique (17) est interposé entre le stator (3) et la ou les broches primaires supplémentaires (7) pour leur forcer à l'intérieur du canal longitudinal (5). Après l'insertion de la clé (2) dans le canal longitudinal (5), l'extrémité de la broche primaire (7) et une tête (18) de la douille (10) viennent en butée contre le levier (9), avec une inclinaison partielle consécutive de celle-ci par rapport à la clé (2) dans une configuration pour translation libre de la broche primaire (6) à l'intérieur du trou (16), sans saillie de l'avant de la broche primaire (6) à l'intérieur de l'évidement (15) du stator (3).
PCT/IT2020/000031 2020-03-05 2020-03-05 Serrure à barillet et clé de celle-ci WO2021176484A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP20730336.3A EP4115036A1 (fr) 2020-03-05 2020-03-05 Serrure à barillet et clé de celle-ci
CN202080097552.2A CN115315562A (zh) 2020-03-05 2020-03-05 圆筒锁及其钥匙
PCT/IT2020/000031 WO2021176484A1 (fr) 2020-03-05 2020-03-05 Serrure à barillet et clé de celle-ci
TW110107912A TW202140905A (zh) 2020-03-05 2021-03-05 圓柱鎖及其鑰匙
ZA2022/10256A ZA202210256B (en) 2020-03-05 2022-09-15 Cylinder lock and key thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2020/000031 WO2021176484A1 (fr) 2020-03-05 2020-03-05 Serrure à barillet et clé de celle-ci

Publications (1)

Publication Number Publication Date
WO2021176484A1 true WO2021176484A1 (fr) 2021-09-10

Family

ID=70975906

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2020/000031 WO2021176484A1 (fr) 2020-03-05 2020-03-05 Serrure à barillet et clé de celle-ci

Country Status (5)

Country Link
EP (1) EP4115036A1 (fr)
CN (1) CN115315562A (fr)
TW (1) TW202140905A (fr)
WO (1) WO2021176484A1 (fr)
ZA (1) ZA202210256B (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1728944A2 (fr) * 2005-06-01 2006-12-06 CISA S.p.A. Serrure cylindrique et clé correspondante
WO2016098133A1 (fr) * 2014-12-15 2016-06-23 Cisa S.P.A. Serrure à barillet et clé associée
WO2018166662A1 (fr) * 2017-03-15 2018-09-20 Iseo Serrature S.P.A. Clé destinée à une serrure et combinaison d'une serrure à barillet et d'une clé plate réversible

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1728944A2 (fr) * 2005-06-01 2006-12-06 CISA S.p.A. Serrure cylindrique et clé correspondante
WO2016098133A1 (fr) * 2014-12-15 2016-06-23 Cisa S.P.A. Serrure à barillet et clé associée
WO2018166662A1 (fr) * 2017-03-15 2018-09-20 Iseo Serrature S.P.A. Clé destinée à une serrure et combinaison d'une serrure à barillet et d'une clé plate réversible

Also Published As

Publication number Publication date
TW202140905A (zh) 2021-11-01
ZA202210256B (en) 2023-06-28
CN115315562A (zh) 2022-11-08
EP4115036A1 (fr) 2023-01-11

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