Classifications

• • 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
• • 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
  • E05B27/0035—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with indirectly actuated tumblers
• • 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
  • E05B27/0082—Side bar locking

Definitions

• the invention relates to a locking cylinder for a key with a core movable in a housing, with a locking channel arranged in the core for receiving a key shaft, with locking elements movable by locking recesses of the key for selectively locking or releasing the movement of the core, with a first series of parallel recesses arranged in a central plane leading longitudinally through the locking channel for receiving at least a partial area of the locking elements, wherein the locking elements are biased towards the locking channel for active query types or are held movable in the core without bias for passive query types, and wherein a second series of recesses is arranged next to the locking channel parallel to the first series of recesses arranged in the central plane.
• the locking elements can either directly block the movement of the core itself or scan the key and move another locking element into a position that blocks the movement of the core.
• the locking elements can be designed as pin tumblers with a core pin and a housing pin, or they can consist solely of a core element.
• the EP 2 494 131 B1 It also discloses the features of the preamble of claim 1. However, compared to the invention, it only allows for a limited modular diversity.
• a cylinder lock with a cylinder housing and a cylinder core is also, for example, made from the EP 0 115 568 A2
• This cylinder lock is known for its design.
• Several locking elements for active and passive query types are grouped around the locking channel.
• the spring-loaded locking elements of the active query types project vertically into the locking channel.
• Locking elements of the passive query types are located in the corner areas of the locking channel.
• a locking device in which further recesses are arranged laterally next to the locking channel, parallel to the central plane of the locking channel.
• the recesses each have core pins and housing pins pre-tensioned by spring elements. Locking elements for passive scanning methods are not provided.
• a disadvantage of conventional locking cylinders is that changing the authentication methods requires significant structural modifications. However, combining different authentication methods offers a high level of security, particularly regarding copy protection for the key used to lock the cylinder.
• the invention is based on the problem of further developing a locking cylinder of the type mentioned above in such a way that it has a particularly high degree of variability, a high number of query types and a high degree of modular diversity.
• This problem is solved according to the invention by arranging a locking element projecting into the closing channel in the connection of two recesses leading to the outside of the core.
• This design results in a high number of recesses in the cylinder lock, in which locking elements for active or passive interrogation methods can be inserted. Due to the high number of recesses, the cylinder lock also offers a high number of possible locking mechanisms. This provides a high level of security against unauthorized unlocking, as it is not possible to unlock the cylinder from the outside. It is visible at which point on the key an active or passive query type is required.
• the modular versatility of the locking cylinder is enhanced by the fact that a locking element projecting into the keyway is positioned at the junction of two recesses leading to the outside of the core. This allows for the optional provision of active and passive query types, which can be implemented by selecting the appropriate locking elements.
• a particularly high number of query types can be easily arranged in the locking cylinder in a limited installation space if the recesses of the first row and the second row have the same distances to each other, wherein the second row is offset from the first row by half the distance of the recesses.
• the locking elements deflected by the key enable the control of a common locking element if the core has an elongated recess for a rib-like locking element and if the elongated recess is arranged perpendicular to the second row of parallel recesses.
• the locking elements arranged in the second row could, like the locking elements arranged in the first row, be individually movable relative to a locking recess in the housing.
• a particularly large-area support of the core against the housing can be easily achieved if the locking elements arranged in the second row of recesses have lateral slots and if the slots have the same height as the strip-like locking element.
• simplifying the assembly of the lock cylinder is facilitated if the locking elements arranged in the second row are pre-tensioned by spring elements, if a common retaining rod supports the spring elements, and if the The retaining rod is fixed in the core. Preferably, the retaining rod is pressed into the core.
• the locking cylinder has a particularly simple design if the rib-like locking element is biased towards the housing by a spring element and if the rib-like locking element and a locking recess in the housing are designed as ramps relative to each other.
• the ramped design of the rib-like locking element and the locking recess allows the rib-like locking element to be pushed back into the core when the core rotates, once the movement is released.
• the locking cylinder has a particularly high level of security against unauthorized unlocking if one of the locking elements pre-tensioned in the locking channel has an undercut and extends to just before a locking recess in the housing, and if a locking element pre-tensioned transversely to it engages in the undercut with a portion of a deflection ramp.
• the undercut is created by a circumferential constriction of the locking element.
• the locking element can have a cylindrical or spherical shape for this purpose.
• increasing the number of possible query types is achieved by arranging a further locking element in each of the recesses leading to the outside of the core, in addition to the locking element projecting into the locking channel. This allows the position of the locking element projecting into the locking channel to be simultaneously scanned by two further locking elements.
• a third row of recesses is arranged next to the locking channel to further increase the modular variety of the locking cylinder and when the first row of recesses is arranged between the second and third rows of recesses.
• locking elements arranged in the third row of recesses also control a ridge-like locking element, so that, apart from individual passive query types, the locking cylinder is essentially symmetrical in design.
• Figure 1 shows a locking cylinder 1 with a core 3 rotatable in a housing 2 and with a key 4 authorized to operate the cylinder, in a sectional view along a central plane.
• the locking cylinder 1 has a keyway 5 and a first row of locking elements 6 for selectively blocking or releasing the movement of the core 3.
• the locking elements 6 are biased into the keyway 5 by spring elements 7 and thus into locking recesses 8 in the key 4.
• the locking recesses 8 for the first row of locking elements 6 are arranged in a key face 9 of the key 4.
• the locking elements 6 are therefore part of active query modes of the locking cylinder 1.
• the housing 2 and the core 3 have a series of recesses 10 for receiving and guiding the locking elements 6.
• Figure 2 shows a cross-sectional view through the lock cylinder 1.
• Figure 1 along line II - II.
• the locking cylinder 1 has a second row of locking elements 11 and a third row of locking elements 12, which are arranged next to the locking channel 5 and thus next to the central plane of the locking cylinder 1.
• These locking elements 11, 12 penetrate the locking channel 5 from the side and engage in Broadsides 13, 14 of the key 4 arranged locking recesses 15, 16 off.
• FIG. 1 A comparison of Figures 1 and 2 shows that the locking elements 6 of the first row and the locking elements 11, 12 of the second and third rows have the same distances to each other, with the second row being offset from the first row by half the distance of the locking elements 6, 11, 12.
• Figure 3 shows in a cross-sectional view through the lock cylinder Figure 2 along line III - III, locking elements 11', 12 arranged in the section plane of the second and third rows are opposite further locking elements 17, 18 with a deflection ramp 19, 20.
• the further locking elements 17, 18 with a deflection ramp 19, 20 are pre-tensioned by spring elements 21, 22 and slidably guided in recesses 23, 241 parallel to the second and third rows of recesses 23, 241 arranged in the central plane.
• the spring elements 21, 22 are supported on a retaining rod 25, 26 pressed into the core 3.
• the locking elements 11', 12, pre-tensioned in the locking channel 5, are arranged in a connection between two recesses 23, 24, 27, 28 extending to the outside of the core 3.
• One of the locking elements 11' pre-tensioned in the locking channel 5 has an undercut 29 and is guided in the housing 2 up to just before a locking recess 30. This undercut 29 is scanned by the locking element 11' which has the deflection ramp 19.
• the locking elements 17, 18, which have the deflection ramp 19, have lateral slots 37, 38 for strip-like locking elements 31, 32.
• the strip-like locking elements 31, 32 are slidably guided in recesses 33, 34 arranged perpendicular to the recesses 33, 34 parallel to the central plane and are each pre-tensioned into a locking recess 35, 33 in the housing 2.
• the strip-like locking elements 31, 32 and the associated locking recesses 35, 36 are designed as ramps relative to each other, so that they can be pushed back into the core 3 when the core 3 rotates relative to the housing 2, as soon as the lateral slots 37, 38 of the deflection ramp 19, 20
• the locking elements 17, 18 are moved at the height of the strip-like locking elements 31, 32.
• Figure 4 shows a cross-sectional view through the lock cylinder 1.
• a further locking element 39 is arranged in a recess 28' leading to the outside of the core 3, behind a locking element 12' that scans the key.
• This locking element 39 is opposite a locking recess 40 in the housing 2 and is designed for passive scanning. If the key 4 has a sufficiently deep locking recess 16' into which the next locking element 12' can penetrate, the locking element 39 opposite the locking recess 40 can also engage in the core 3. The core 3 can then be rotated freely relative to the housing 2.
• Figure 5 shows in a cross-sectional view through the lock cylinder 1.
• Figure 2 along the line V - V, a further locking element 41 is slidably arranged in a recess 42 in the core 3.
• This further locking element 41 scans a ridge 43 of the key 4 without preload and is thus part of a passive scanning method.
• Figure 5 shows Figure 5 Spring elements 44 for pre-tensioning the strip-like locking elements 29, 30 in the direction of the locking recesses 33, 34 in the housing 2.
• FIG. 6 To illustrate, the locking elements and spring elements of the lock cylinder are shown from the Figures 1 to 5 in a perspective view. To simplify the drawing, only the locking elements 6, 11, 12, 17, 18, 31, 32, 39, 41 guided in the core 3 are shown. The retaining bars 25, 26 for the locking elements 17, 18 arranged laterally next to the central plane are guided over the entire respective row of locking elements 17, 18.

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• Lock And Its Accessories (AREA)

Applications Claiming Priority (1)

Publications (2)

Family

ID=85704671

Family Applications (1)

Country Status (5)

Family Cites Families (7)

• 2022
  • 2022-03-28 DE DE102022203009.5A patent/DE102022203009A1/de active Pending
• 2023
  • 2023-03-20 ES ES23162902T patent/ES3057905T3/es active Active
  • 2023-03-20 EP EP23162902.3A patent/EP4269728B1/de active Active
  • 2023-03-20 PL PL23162902.3T patent/PL4269728T3/pl unknown
  • 2023-03-20 FI FIEP23162902.3T patent/FI4269728T3/fi active

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