EP3933152B1 - Cylindre de fermeture, dispositif de fermeture, système de fermeture, clé et ébauche de clé - Google Patents

Cylindre de fermeture, dispositif de fermeture, système de fermeture, clé et ébauche de clé Download PDF

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Publication number
EP3933152B1
EP3933152B1 EP21178108.3A EP21178108A EP3933152B1 EP 3933152 B1 EP3933152 B1 EP 3933152B1 EP 21178108 A EP21178108 A EP 21178108A EP 3933152 B1 EP3933152 B1 EP 3933152B1
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EP
European Patent Office
Prior art keywords
key
coding
cylinder
section
coding element
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Application number
EP21178108.3A
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German (de)
English (en)
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EP3933152C0 (fr
EP3933152A1 (fr
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.)
ABUS August Bremicker Soehne KG
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ABUS August Bremicker Soehne KG
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Publication of EP3933152A1 publication Critical patent/EP3933152A1/fr
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Publication of EP3933152B1 publication Critical patent/EP3933152B1/fr
Publication of EP3933152C0 publication Critical patent/EP3933152C0/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B19/00—Keys; Accessories therefor
    • E05B19/0017—Key profiles
    • E05B19/0041—Key profiles characterized by the cross-section of the key blade in a plane perpendicular to the longitudinal axis of the key
    • E05B19/0052—Rectangular flat keys
    • E05B19/0058—Rectangular flat keys with key bits on at least one wide side surface of the key
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/06—Lock wards
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/08—Key guides; Key pins ; Keyholes; Keyhole finders
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B19/00—Keys; Accessories therefor
    • E05B19/0094—Keys; Accessories therefor protruding elements on the key preventing unauthorized insertion into the keyhole
    • 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
    • E05B27/0007—Rotors
    • 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 lock cylinder with a cylinder housing; a cylinder core which is mounted in the cylinder housing so as to be rotatable about a cylinder axis and has a key channel which extends parallel to the cylinder axis into the cylinder core for the key shank of a key associated with the lock cylinder; and a plurality of tumblers, which partially protrude into the key channel and are designed to block the cylinder core from rotating out of the normal position in a normal position of the cylinder core relative to the cylinder housing, provided they are not, in particular by the associated key, in a configuration releasing the cylinder core are arranged.
  • the invention also relates to a key for use with such a lock cylinder; a key blank for making such a key; a locking device that includes such a lock cylinder and at least one key associated with the lock cylinder; and a locking system with such a locking device.
  • Such a lock cylinder or a locking device or a locking system with such a lock cylinder can be designed for use in doors, for example.
  • the tumblers which in particular can be at least partially accommodated and movably mounted in the cylinder housing, largely ensure that the cylinder core can only be rotated by means of the associated key.
  • the tumblers can move across an interface (also known as a shear line) between the cylinder core and extend away from the cylinder housing to thereby block rotation of the cylinder core relative to the cylinder housing unless placed in said releasing configuration by the associated key.
  • the releasing configuration can be defined in particular by the fact that in this configuration none of the tumblers extends beyond the boundary surface between the cylinder core and the cylinder housing or, in the case of multi-part tumblers, a parting line between separate parts of the tumbler coincides with the boundary surface.
  • the key shank also called "key bit” according to the DIN EN 1303 standard
  • the tumblers can in particular be pin tumblers or plate tumblers.
  • the cylinder core has the key channel mentioned.
  • the key shank of the key can then be inserted into the keyway to directly engage the tumblers.
  • How the key shank has to be designed in order to act on the tumblers in such a way that they are arranged in the releasing configuration represents the locking secret of the lock cylinder.
  • the key shank of the key assigned to the lock cylinder has a specific coding structure, for example dimples or indentations, which is designed according to the locking code, i.e. in such a way that the tumblers of the lock cylinder are arranged in the releasing structure by being acted upon by the coding structure (if the relative arrangement is correct).
  • the number of possible locking codes that a specific locking cylinder can have by permuting the variable coding features is limited in particular by the type and number of tumblers.
  • the security of the locking cylinder increases with the number of possible locking codes, since the respective locking code is becoming more and more specific and it is therefore becoming less and less likely to guess it by trying it out. It is therefore desirable to increase the number of possible locking secrets.
  • the security of a lock cylinder can also be limited by the fact that the secret code is encoded by a single mechanism, for example only by tumblers. As a result, an attempt to break the locking secret (e.g. by manually setting the individual tumblers with a special tool; so-called lock picking) can be limited to this mechanism. If, on the other hand, the coding of the secret code in the lock cylinder is distributed over several mechanisms of different types, in order to attempt to break in, it is necessary to use different techniques to defeat all the mechanisms, which makes break-in more difficult, especially when the different mechanisms are located at different points in the system Lock cylinders are provided. It is therefore desirable to encode the secret of the lock cylinder using a number of different mechanisms.
  • a lock cylinder is off WO 99/51837 A1 known.
  • Other comparable locking cylinders are used, for example, in EP 2 644 809 A1 , EP 2 314 807 A2 , EP 3 375 956 A1 as well as EP 2 360 334 A2 described.
  • the lock cylinder comprises a cylinder housing; a cylinder core, which is mounted in the cylinder housing so that it can rotate about a cylinder axis and has a key channel, which extends parallel to the cylinder axis into the cylinder core, for the key shank of a key assigned to the lock cylinder, the key channel having an elongate cross-section with two narrow sides that face one another in a first transverse direction are opposite, and having two broadsides opposite to each other with respect to a second transverse direction; and several tumblers, which partially protrude into the key channel and are designed to block the cylinder core from rotating out of the normal position in a normal position of the cylinder core relative to the cylinder housing, provided they are not, in particular by the associated key, in a configuration releasing the cylinder core are arranged.
  • the key channel is advantageously designed specifically so that the key shank of the associated key can be inserted into the key channel; or vice versa: the key shank of the associated key is advantageously designed specifically so that it can be inserted into the key channel.
  • the key channel and the key shank expediently have cross sections that correspond to one another, in particular that are at least essentially complementary to one another.
  • the keyway has the above-mentioned oblong cross-section with respect to the cylinder axis, with two narrow sides and two broad sides, which are opposite one another transversely to the cylinder axis.
  • the direction in relation to which the two narrow sides are opposite to one another defines a first transverse direction oriented transversely to the cylinder axis
  • the direction in relation to which the two broad sides are opposite to one another defines a second transverse direction oriented transversely to the cylinder axis .
  • transverse is to be understood in particular as perpendicular.
  • transverse directions as the first and second transverse direction is only used for conceptual differentiation and is not intended to imply any order or preferred direction.
  • the designation of the sides as narrow side or broad side is to be understood in such a way that the width of both narrow sides, ie their extent along said second transverse direction, is at least no greater, preferably smaller, than the width of both broad sides, ie their extent along said first transverse direction, is.
  • a surface of the three-dimensional shape of the key channel corresponds to each edge of the two-dimensional cross section of the key channel, the cross section of which is preferably constant at least substantially along its extent in the direction of the cylinder axis.
  • both the edge of the two-dimensional cross-section and the corresponding surface of the three-dimensional shape of the keyway are referred to as the narrow side or broad side, whereby the context determines whether the edge (narrow side or broad side of the cross-section) or the area ( Narrow side or broad side of the key channel) is meant.
  • the cross section can be at least essentially rectangular, so that the key channel has the shape of a flat cuboid at least approximately (for example when it is approximated by its convex shell).
  • the two narrow sides are aligned parallel to the second transverse direction and the two broad sides are aligned parallel to the first transverse direction; in addition, on the one hand the two narrow sides and on the other hand the two broad sides each have at least essentially the same width.
  • the corners of the rectangular shape or the edges of the cuboid shape can be rounded off or have a chamfer at the transition between a respective narrow side and a respective broad side.
  • the broad sides can at least essentially have a flat surface. Such a design can be expedient, for example, for lock cylinders whose associated keys are dimple keys. However, the broad sides can also have steps or obliquely aligned sections, so that the cross section of the key channel (and correspondingly the cross section of the key shank) can appear jagged and/or stepped, for example. Furthermore, it may be advantageous to form the cross-section point-symmetrical, so that the associated key in two positions that are through Distinguish rotation of 180 ° about an axis parallel to the cylinder axis, can be inserted into the keyway.
  • the lock cylinder includes a coding element and that the cylinder core has a receptacle for the coding element, which extends transversely to the cylinder axis, in particular parallel to the first transverse direction, into the cylinder core and partially overlaps the key channel.
  • the receptacle thus forms a receptacle space for the coding element.
  • the receptacle is designed to receive the coding element; or vice versa: the coding element is designed to be inserted into the receptacle.
  • the coding element When the coding element is inserted into the receptacle, i.e. accommodated therein, the coding element is preferably immovably caught in the receptacle at least in one direction parallel to the cylinder axis, preferably in all directions, at least essentially, in particular only apart from remaining play.
  • the receptacle can be designed to be at least essentially complementary to the coding element, for example insofar as the cross sections of the coding element and the receptacle at least essentially correspond to one another with regard to the cylinder axis and/or as one or more, preferably all, side surfaces of the cylinder axis aligned perpendicularly Encoding elements each rest against a side surface of the receptacle aligned perpendicular to the cylinder axis and/or vice versa.
  • the coding element Since the receptacle for the coding element extends into the cylinder core, ie from the outside into the interior of the cylinder core, the coding element can easily be inserted from the outside into the receptacle and thus into the cylinder core.
  • the recording extends so far into the cylinder core that part of the recording overlaps with the keyway. The recording thus extends into or even through part of the key canal. This leads to the Recording in the area of its extension along the cylinder axis along a section of the contour of the cross section of the key channel in the key channel.
  • This section preferably completely encompasses one of the two narrow sides of the cross-section and at least one section of one of the two broad sides of the cross-section adjoining the narrow side; more preferably, the section also includes a section of the other of the two broad sides adjoining the narrow side.
  • the invention provides that the coding element, when it is inserted into the receptacle, is designed to engage in the key channel on one of the two narrow sides with a stop section in order to have a stop to limit the insertion of the key shank of the associated key into the key channel to form a correct insertion depth, and to engage the keyway on at least one of the two broadsides with a keying section (namely, with one of two keying sections on one of the two broadsides and with the other keying section on the other broadside, as will be explained further below) , in order to encode a permissible profiling of the key shank.
  • the coding element can be designed in the manner mentioned for the purposes mentioned, especially with regard to its shape, in particular with regard to the shape of those sections of the coding element which, when inserted into the socket, are located in the part of the socket overlapping the key channel, i.e. inside of the key channel are arranged and insofar intervene in the key channel.
  • the other sections of the coding element can be designed primarily with regard to reliable mounting of the coding element in the receptacle, in particular by at least essentially completely filling that part of the receptacle that does not overlap with the keyway.
  • one of the sections of the coding element that engages in the key channel when the coding element is inserted forms a stop section of the coding element that serves as a stop to limit the insertion of the key shank of the key assigned to the lock cylinder into the key channel to a correct insertion depth.
  • the correct insertion depth is the depth to which the key shank of the associated key must be inserted into the key channel so that it arranges the tumblers of the cylinder core in the releasing configuration.
  • the stop section of the coding element acts as such a stop, in particular insofar as it comes to lie within the key channel when the coding element is inserted into the receptacle in such a way that when the key shank of the associated key is inserted into the key channel, a stop section formed on the key shank is reached the correct insertion depth against it and thereby an even deeper insertion of the key shank into the key channel is prevented.
  • the coding element can serve to enable the correct positioning of the key for releasing the cylinder core in the first place, or at least to contribute to precise positioning.
  • the stop section of the coding element and/or the stop section of the key shank is (in each case) formed by a stop surface which is aligned perpendicular to the cylinder axis.
  • the stop section of the coding element engages in one of the two narrow sides of the key channel and in this respect extends at least over part of this narrow side.
  • the stop section preferably extends over the entire width of the narrow side, ie over its entire extent along the second transverse direction mentioned.
  • the lock cylinder can be restricted to the fact that of a number of keys that are fundamentally suitable, in particular due to a corresponding coding structure, for putting the tumblers of the lock cylinder into the releasing configuration, only those of these keys exactly up to the one for the Shifting into the releasing configuration correct insertion depth can be inserted into the cylinder core, which have a stop section for striking the stop section of the coding element at the appropriate point. Keys that instead hit the stop section of the coding element with the tip or with a front side of the key shank aligned in the direction of insertion do not reach the correct insertion depth and can therefore be prevented from actuating the lock cylinder by the coding element.
  • the coding element can also be used to ensure that keys that do not have a stop section that strikes the stop section of the coding element or have a stop section that strikes the stop section of the coding element too early or too late (i.e. if the correct insertion depth has not yet been reached or has already been exceeded), are not suitable for actuating the cylinder core, since the correct insertion depth cannot be reached or at least cannot be reliably found.
  • two further sections of the coding element which engage in the key channel when the coding element is inserted, each form a coding section that engages in the key channel on one of its two broad sides.
  • the respective coding section preferably extends over only part of the entire width of the broadside, ie its extent along the first transverse direction mentioned, and/or engages in the key channel to different extents in different partial areas of the broadside along the second transverse direction. This is particularly advantageous with regard to the function of the coding element, to code a permissible profiling of the key shank.
  • the coding of the permissible profiling of the key shank consists at least essentially in that the cross section of the key channel in the area of the broad side, on which the respective coding section engages in the key channel, is constricted by this intervention in such a way that only a key whose key shank extends at least over a front section is profiled in a corresponding manner, in particular in a manner complementary to the respective coding section, with this front section past the respective coding section up to the correct insertion depth into the key channel.
  • the front section, over which the profiling must at least extend extends starting from a tip of the key shank (i.e.
  • the free end of the key shank with which the key shank is first inserted into the key channel at least to a distance from the tip, which corresponds to the distance that the tip has to the receptacle of the cylinder core with the coding element inserted therein when the key shank is inserted into the key channel to the correct insertion depth.
  • profiling A reduction in the cross section of the key shank in the aforementioned front section is therefore referred to as profiling.
  • a profiling that is permissible in relation to a specific coding element is in particular when its shape at least essentially corresponds to the shape of the constriction of the cross section of the key channel through the coding sections of this coding element, so that the key shank can be connected to it during insertion into the key channel
  • Profiling can be passed to the coding sections.
  • the profiling can be formed, for example, if necessary, among other things, by one or more grooves or grooves formed in the key shank, in particular at least in the aforementioned front section of the key shank, which run parallel to one another and, when the key shank is inserted in the key channel, preferably also parallel to the cylinder axis .
  • a respective coding section of the coding element can then engage in the respective groove or slot and run through it from the tip of the key shank until the correct insertion depth is reached.
  • the coding element can therefore be used to restrict the lock cylinder to the fact that, of a number of keys that would basically, in particular due to a corresponding coding structure, be suitable for putting the tumblers of the lock cylinder into the releasing configuration, only those of these keys up to the one for the Shifting into the releasing configuration correct insertion depth can be inserted into the cylinder core, which have a permissible, ie to the coding element, in particular to its coding sections, corresponding, preferably complementary, profiling.
  • whether the lock cylinder can be actuated by means of a key can also depend on whether the key shank of the key has a permissible profile, which in turn depends on the design of the coding element.
  • the locking code for actuating the lock cylinder can be supplemented by a part that can be specified by the coding element and can also be set or changed when using a number of different coding elements.
  • the use of the coding element or a corresponding design of the associated key consequently increases the number of possible locking codes that can be set on the locking cylinder. Not only can the tumblers be permuted, but the coding element can either be inserted into the receptacle of the cylinder core or not. In addition, various coding elements can be provided, one of which can optionally be inserted into the receptacle.
  • the cylinder core of the lock cylinder can have two or more, in particular essentially similar, recordings of the type mentioned, which differ in terms of their position along the cylinder axis, so that the coding element or a respective coding element can be used in one of the recordings, whereby the position of the stop for limiting the insertion of the key shank of the assigned key in the key channel to a correct insertion depth and the number of possible locking codes can thus be increased even further.
  • the locking secret is distributed over several mechanisms as a result of the design according to the invention, namely on the one hand on the interaction of a coding structure of the key with the tumblers and on the other hand on the guided positioning of the key up to the correct insertion depth in the interaction of the stop section and the profiling of the key with the coding element.
  • the security of the lock cylinder is improved in a number of ways.
  • the two advantageous functions of a stop located within the cylinder core on the one hand and an additional coding of a permissible profiling on the other hand are implemented by a single element, namely by the coding element, and thus in a particularly simple manner.
  • the coding sections and the stop section of the coding element can at least partially overlap.
  • the coding sections and the stop section of the coding element are preferably disjunctive, and they can adjoin one another.
  • the respective coding section can also form a further stop to limit the insertion of the key shank of the associated key into the key channel to a correct insertion depth and in this respect as an additional stop section to the mentioned stop section Stop section of the coding act.
  • the engagement of the stop section and the engagement of the coding sections of the coding element in the key channel narrows or constricts the cross section of the key channel in the area along the cylinder axis in which the receptacle is arranged and overlaps with the key channel.
  • This constriction advantageously takes place both along the first transverse direction, namely through the stop section, which engages in the key channel on a narrow side of the latter, and along the second transverse direction, namely through the coding sections, which engage in the broad sides of the key channel.
  • the constriction is comparatively more difficult to circumvent, since a duplicate key, for example, has to be precisely machined from two different directions in order to be adapted to the constriction. Consequently, security can be further improved if the cross-section of the keyway is narrowed even from three sides in the area of the receptacle.
  • the invention provides that the coding element has two coding sections and is designed to do so, when it is inserted into the receptacle, with one of the coding sections on one of the two broad sides and with the other of the coding sections on the other of the two broad sides in intervene the key channel to encode a valid profiling of the key shank.
  • the permissible profiling can accordingly be distributed over the two broad sides of the key shank, which correspond to the broad sides of the key channel. If the lock cylinder is designed so that the associated key can be a reversible key, i.e.
  • the coding sections are preferably designed and arranged in such a way that their interaction with the double-sided profiling of the key shank does not conflict with this property of the key as a reversible key.
  • the coding element thus forms a two-sided constriction of the key channel. It is also provided according to the invention that the coding element is mirror-symmetrical, with the mirror plane of this mirror symmetry preferably being aligned parallel to the cylinder axis when the coding element is inserted in the receptacle. The cylinder axis then preferably lies in this mirror plane.
  • the receptacle can be designed in the form of a slot and can extend along a plane perpendicular to the cylinder axis.
  • a receiving slot can be formed as an incision, preferably of constant thickness (i.e. constant extension along the cylinder axis), in the cylinder core.
  • the cross section of the receptacle perpendicular to the cylinder axis can in particular be in the form of a segment of a circle, with the overlapping of the receptacle with the key channel being included in the cross section.
  • the segment height of the circular segment is preferably smaller than the radius of the cylinder core and preferably larger than half the extension of the key channel along the first transverse direction.
  • the coding element can be designed in the form of small plates. It preferably has a constant thickness. Such a coding element can advantageously be easily produced by stamping. As an alternative to this, it can also be provided that the coding element is produced, for example, in a casting process, with a 3D printer or by eroding is made or is, these production methods are not limited to platelet-shaped coding elements.
  • the cross section of the coding element is preferably at least approximately (for example if it is approximated by its convex envelope) in the shape of a circular segment, with the corners at the transition between the circular arc and the chord of the circular segment shape being rounded off or having a chamfer.
  • the segment height of the circular segment is preferably smaller than the radius of the cylinder core and preferably larger than half the extension of the key channel along the first transverse direction. If the receptacle is also designed in the shape of a segment of a circle, the shape of the segment of a circle of the receptacle and the shape of a segment of a circle of the coding element preferably correspond to one another.
  • the coding element can have a recess with a contour, the stop section corresponding to a section of the contour and the respective coding section corresponding to another section of the contour. If the coding element has the shape of a segment of a circle, the recess can be provided in particular on the chord of the circle segment shape, ie it can extend in particular from the chord of a circle into the coding element. If the coding element is produced by stamping, the coding element with the recess can advantageously be formed in a single stamping step.
  • the contour of the cutout is the profile of the edge of the cutout in relation to its cross section, which is aligned parallel to the plane of the platelet in the case of a platelet-shaped coding element and perpendicular to the cylinder axis in the case of a coding element inserted into the receptacle.
  • the fact that the stop section corresponds to a section of the contour means in particular that the stop section in the direction of the narrow side of the key channel on which the stop section engages in the key channel, away, ie at least essentially parallel to the first transverse direction, is delimited by this section of the contour.
  • the respective coding section corresponds to a section of the contour means in particular that the respective coding section extends in the direction away from the broad side of the key channel, on which the respective coding section engages in the key channel, i.e. at least essentially parallel to the second transverse direction, through this section of the contour is limited.
  • Each of the coding sections can in particular be formed by a projection of the contour, that is to say correspond to the section of the contour that forms the projection in the sense mentioned above.
  • the section of the contour that forms the projection protrudes in relation to an adjacent section of the contour in the direction of the free space of the recess. Consequently, when the contour of the recess has such a protrusion, the shape of the free space of the recess is concave.
  • the key shank of the associated key can then be profiled concavely in a corresponding manner.
  • the stop section and all coding sections provided on the coding element are arranged at a distance from one another. These sections of the coding element are then not only disjunctive to one another, but also do not adjoin one another. In this way, the stop section and the coding sections of the coding element can interact better with a respective structure formed on the key shank of the associated key, e.g. striking a stop surface or engaging in a channel or groove.
  • the key according to the invention is designed for use with a lock cylinder of the type mentioned, which in turn can be designed in particular in at least one of the ways set out above.
  • the includes Key has a key shank extending along a key insertion direction and having an elongate cross-section with two narrow sides opposite to each other transverse to the key insertion direction and two broad sides opposite to each other transverse to the key insertion direction.
  • the key shank of the key has a coding structure on at least one of its broad sides, which is designed to arrange the tumblers of the lock cylinder in the releasing configuration when the key shank is inserted up to a correct insertion depth into the key channel of the cylinder core of the lock cylinder, and a stop section which is designed as a stop surface which is aligned perpendicularly to the key insertion direction and is formed by a step in one of the narrow sides of the key shank, so that when the key shank is inserted into the key channel and the correct insertion depth is reached on the stop section of the coding element inserted into the receptacle strike the lock cylinder.
  • the key shank of the key has a profile, in particular in the form of at least one channel and/or groove, which is formed in one of the broad sides of the key shank and extends from a tip of the key shank with respect to the key insertion direction at least to the Stage extends so that when the key shank is inserted into the key channel, the section of the key shank having the profile can be guided past the coding sections of the coding element of the lock cylinder inserted into the receptacle.
  • the profiling can be designed in particular so that, while the section of the key shank having the profiling is guided past one of the coding sections of the coding element of the lock cylinder, the respective coding section engages in the profiling and this goes through.
  • the respective coding section is moved along the profile while it engages, for example, in a groove or channel of the profile.
  • the respective coding section does not necessarily have to go through the profiling to the end.
  • the profiling extends to an end section designed as an end face perpendicular to the key insertion direction, which forms a further stop section of the key shank and with which the key shank strikes the respective coding section of the coding element when the correct insertion depth is reached.
  • the blank according to the invention is designed to produce a key of the type mentioned, which can be designed in particular in at least one of the ways set out above.
  • the key blank includes a key shank that extends along a key insertion direction and has an elongated cross section with two narrow sides that are opposite to one another transversely to the key insertion direction, and two broad sides that are opposite to one another transversely to the key insertion direction.
  • the key shank of the key blank has a stop section, which is designed as a stop surface that is oriented perpendicular to the key insertion direction and is formed by a step in one of the narrow sides of the key shank, so that when the key shank is inserted into the key channel, the correct insertion depth is reached at the stop section of the coding element of the lock cylinder inserted into the receptacle.
  • the key shank of the key blank has a profile, in particular in the form of at least one channel and/or groove, which is formed in one of the broad sides of the key shank and extends from a tip of the key shank with respect to the key insertion direction at least to the Stage extends, so that when the key shank is inserted into the key channel, the section of the having the profiling Key shank can be guided past the coding sections of the coding element of the lock cylinder used in the receptacle.
  • the key blank differs from the key essentially, in particular exclusively, in that it does not (yet) have the coding structure by which the tumblers are arranged in the releasing configuration when the key shank is inserted into the key channel to the correct insertion depth .
  • the profiling of the key shank extends essentially only up to the level of the respective step on the narrow side of the key shank.
  • An end face of the profiling can be arranged exactly at the (axial) height of the step, with both the step and the end face being able to form a respective stop section (in particular a stop surface) for inserting the key shank into the keyway of a cylinder core.
  • a respective stop section in particular a stop surface
  • the limited length of the respective profile on the broad side of the key shank means that the coding structure, in particular an arrangement of drill depressions, can be attached to a significant part of the broad side of the key shank without impairment. In particular, this avoids that formed by the profiling Deepening of the broad side restricts the coding options with regard to the tumblers of the locking cylinder. Furthermore, it is provided according to the invention that the key shank is rotationally symmetrical with respect to an axis of symmetry parallel to the key insertion direction.
  • the locking device comprises a lock cylinder according to the invention, which can be designed in one or more of the ways explained above, and at least one key assigned to the lock cylinder, which is designed as a key according to the invention. Consequently, the key shank of the key extends along a key insertion direction and has an elongate cross-section with two narrow sides opposite to each other transversely to the key insertion direction and two broad sides opposite to one another transversely to the key insertion direction.
  • the key shank can at least essentially have the shape of a flat cuboid, so that its cross section is at least essentially rectangular.
  • the key insertion direction is aligned parallel to the cylinder axis.
  • the narrow sides of the key shank are then opposite to one another, corresponding to the narrow sides of the key channel, with respect to said first transverse direction, and the broad sides of the key shank are then opposite to one another, corresponding to the broad sides of the key channel, with respect to said second transverse direction.
  • the key shank of the key has a coding structure on at least one of its broad sides, which is designed to arrange the tumblers in the releasing configuration when the key shank is inserted into the key channel to the correct insertion depth.
  • the coding structure can be, for example, dimples.
  • the coding structure due to the rotational symmetry mentioned, includes structures formed not only on one of the two broadsides, but on both broadsides, for example the mentioned dimples.
  • the key shank has the aforementioned profiling, which is designed in such a way that the key shank, in particular only because of this profiling, can be guided past the coding sections of the coding element inserted in the receptacle of the cylinder core at least far enough when it is inserted into the keyway that it correct insertion depth reached.
  • the above-mentioned profiling of the key shank comprises a channel or groove which is complementary to the coding section of the coding element and is formed in one of the broad sides of the key shank.
  • the named profiling can comprise a number of grooves or grooves corresponding to the number of coding sections in a corresponding arrangement. Because of the complementary design, the respective coding section, which engages in the respective groove or slot when the key shank is inserted into the key channel, is guided particularly reliably relative to the profiling through the respective groove or slot.
  • the channel or groove preferably has a straight course, which can in particular be aligned parallel to the key insertion direction.
  • the channel or groove can also have a course that is curved or oriented obliquely to the key insertion direction, so that the coding element is displaced transversely to the cylinder axis in the receptacle when the key shank is inserted into the key channel as a result of the coding section engaging in the channel or groove.
  • the coding element can act as a kind of additional tumbler, which initially protrudes from the receptacle beyond the interface between the cylinder core and the cylinder housing and thereby blocks the cylinder core from rotating relative to the cylinder housing by being inserted the key is then moved into the cylinder core in such a way that this blocking is lifted.
  • the key shank has one or more stop sections which, in particular with regard to their position on the key shank, are designed so that, when the key shank is inserted into the key channel of the cylinder core, the correct insertion depth is reached in one section, in particular to strike the stop section or a respective one of the coding sections of the coding element inserted into the receptacle.
  • the impact advantageously limits the insertion of the key shank into the key channel to the correct insertion depth at which the key shank arranges the tumblers in the releasing configuration. If more than one stop section of this type is provided on the key shank, all stop sections formed on the key shank are preferably arranged in the same plane perpendicular to the key insertion direction.
  • one of the stop sections of the key shank can be designed as a stop surface oriented perpendicular to the key insertion direction, which is formed by a step in one of the narrow sides of the key shank.
  • the stop surface is the surface that connects the two levels of the step.
  • the step is preferably formed on the opposite narrow side, also referred to as the back of the key.
  • the grooves and/or grooves mentioned can extend from the tip of the key shank in particular at least up to the step with respect to the key insertion direction, ie in the axial direction up to the height of the step.
  • the step is set back with respect to the key insertion direction in relation to the tip of the key shank, ie in particular is not formed by a front side of the shape of the key shank.
  • the step can have a distance from the tip of the key shank along the key insertion direction which corresponds to at least one tenth, in particular at least one eighth, of the length of the key shank, i.e. the extension of the key shank along the key insertion direction.
  • the distance is preferably less than half, in particular less than a third, of the length of the key shank.
  • one of the mentioned stop sections of the key shank can be designed as an end surface oriented perpendicularly to the key insertion direction, up to which the mentioned profiling extends from a tip of the key shank. This point is the free end of the key shank, which is aligned in the key insertion direction, so that the key shank is designed to be inserted point first into the key channel of the lock cylinder. If the above-mentioned stop section formed by a step in one of the narrow sides of the key shank is also provided, the present stop section is not the same stop section, but a further stop section that is separate from it, but is preferably in the same plane perpendicular to the key insertion direction how the aforesaid stopper portion is arranged.
  • the stop section formed by the end face is preferably formed in one of the broad sides of the key shank. Due to the rotational symmetry of the key shank, such a stop section is provided in each of the two broad sides of the key shank.
  • Said end surface can in particular define an end of a respective groove or groove of the profiling up to which the groove or groove extends starting from the tip of the key shank can extend. In this case, the channel or groove extends exclusively over part of the length of the key shank. In particular, this can also apply to the profiling as a whole.
  • the key can be designed in particular as a reversible key in which the stop sections, in particular two steps on the narrow sides of the key shank and/or two end faces of profiles on the broad sides of the key shank, in relation to a rotation of 180° the key axis are provided in a rotationally symmetrical arrangement.
  • the only stops of the locking device that are effective on the cylinder side are designed to limit the insertion of the key shank of the associated key into the key channel of the cylinder core to the correct insertion depth on the coding element, in particular by the stop section and, if necessary, one or more further stop sections and/or the coding sections of the coding element are formed.
  • the respective stop sections of the coding element and the key shank can be arranged relative to one another in such a way that they hit one another when the key shank is inserted into the key channel before a shank widening, a transition between the key shank and a key bow of the key or the key bow itself from the outside against the cylinder core or against the cylinder housing.
  • the key advantageously strikes the key only within the key channel when it is inserted lock cylinder on.
  • the fact that there is no reference point for the correct insertion depth outside the lock cylinder has the advantage that it is more difficult to produce a duplicate key.
  • the locking system comprises a locking device of the type mentioned, which can be designed in at least one of the ways set out above.
  • the locking system does not only include one coding element and only one associated key, but several different coding elements of the type mentioned, which differ in terms of their coding sections, and several different associated keys, which differ in terms of the profile of their key shanks.
  • the coding elements can differ in particular with regard to the number, the shape and/or the position of their respective coding sections.
  • the various keys are all keys assigned to the lock cylinder of the locking system insofar as each of them is fundamentally suitable for actuating the lock cylinder.
  • all assigned keys are then inserted with their key shank up to the correct insertion depth into the key channel of the lock cylinder and can thereby set the tumblers of the lock cylinder into the releasing configuration if none of the coding elements are inserted into the receptacle.
  • all assigned keys can in particular have the same coding structure.
  • the locking system also provides for at least one associated key to be provided for each coding element, which corresponds to the coding element insofar as a profiling corresponding to the coding sections of this coding element, in particular complementary to the coding sections, is formed on its key shank, so that optionally one of the coding elements inserted into the receptacle of the cylinder core can be, thereby restricting the insertability of the key into the cylinder core to the corresponding associated key with this coding element.
  • the number of possible key codes in such a locking system can correspond to the number of different coding elements be multiplied.
  • FIG. 1 an embodiment of a lock cylinder 11 according to the invention is shown in a simplified representation.
  • the illustration is simplified in particular in that only the cylinder core 13 and coding element 15 of the lock cylinder 11 are shown, while a cylinder housing which is also enclosed by the lock cylinder 11 and tumblers which are effective in a basically known manner between the cylinder housing and the cylinder core 13 are not shown.
  • the cylinder core 13 is accommodated in an at least essentially cylindrical receptacle of the cylinder housing and is rotatably mounted therein about a cylinder axis Z, which corresponds to the axis of symmetry of the cylindrical shape of the cylinder core 13 .
  • the cylinder core 13 has a key channel 19 for a key 17 assigned to the lock cylinder 11, which is 1 is shown.
  • the key channel 19 of the cylinder core 13 extends starting from an end face of the cylinder core 13 with a constant cross section along the cylinder axis Z into the cylinder core 13 .
  • the cross section of key channel 19 has an elongated, at least approximately rectangular shape, so that key channel 19 is at least approximately cuboid in shape, with the two shorter sides and the two longer sides of the rectangular cross section corresponding to narrow sides 23 and broad sides 25 of key channel 19.
  • the two narrow sides 23 are arranged opposite to one another with respect to a first transverse direction Q1 perpendicular to the cylinder axis Z, while the two broad sides 25 are arranged opposite to one another with respect to a second transverse direction Q2 perpendicular to the cylinder axis Z and to the first transverse direction Q1.
  • One of the two narrow sides 23 coincides with the cylinder surface of the cylinder shape of the cylinder core 13, so that the key channel 19 is designed to be open towards this narrow side 23.
  • the key channel 19 extends along the cylinder axis Z completely through the cylinder core 13, i.e. from the named end face of the cylinder core 13 to the opposite end face of the cylinder core 13, so that the key channel 19 is also designed to be open towards these two end faces. In this way, the key channel 19 can be formed in a simple manner as an incision in the cylinder core 13 along the first transverse direction Q1.
  • the key channel 19 also has a receptacle 27 which, like the key channel 19, is designed as an incision in the cylinder core 13 along the first transverse direction Q1.
  • the receptacle 27 does not extend along the cylinder axis Z, but perpendicularly thereto.
  • the key channel 19 and the socket 27 cross each other so that they partially overlap each other.
  • the recording opens into the key channel.
  • the receptacle 27 does not extend as deeply into the cylinder core 13 in the first transverse direction Q1 as the key channel 19, i.e. not to its narrow side 23 opposite the open narrow side 23, but only over (slightly) more than half the distance between the two Narrow sides 23 of the key channel 19 from each other.
  • the receptacle 27 has the shape of a segment of a circle, the chord of which is aligned parallel to the second transverse direction Q2. As a result, the receptacle 27 is mirror-symmetrical with respect to a mirror plane which is perpendicular to the second transverse direction Q2 is aligned.
  • the mirror plane of the receptacle 27 is also a mirror plane of the key channel 19.
  • the coding element 15 is essentially, ie in the present embodiment except for rounded corners and a central recess 29, designed to complement the receptacle 27 and can therefore be inserted into the receptacle 27 with a precise fit.
  • the thickness of the platelet-shaped coding element 15 corresponds to the thickness of the receptacle 27 and, on the other hand, has the (also in 2 shown) cross-section of the coding element 15 with respect to its outer shape (convex shell) a circular segment shape of the receptacle 27 corresponding circular segment shape.
  • the recess 29, like the entire coding element 15, is formed by stamping and extends from the center of the chord of the circular segment shape of the coding element 15 into the latter. Due to the overlap of the receptacle 27 with the key channel 19, the coding element 15 is also partially arranged in the key channel 19 when it is inserted into the receptacle 27. The recess 29 is arranged on the coding element 15 in such a way that it is then located essentially within the area of the overlap of the receptacle 27 with the key channel 19 . However, sections of the coding element 15 also protrude into this area and in this respect engage in the key channel 19 .
  • the coding element 15 engages in the key channel 19 on the one hand on the open of the two narrow sides 23 of the key channel 19 with a section referred to as abutment section 31 and on the other hand on the two broad sides 25 of the key channel 19 with a section referred to as the coding section 33 in the key channel 19.
  • the stop section 31 and the coding sections 33 of the coding element 15 are in particular in 2 to recognize in which the open narrow side 23 and the two broad sides 25 of the key channel 19, as far as they intersect the cross section of the coding element 15, than the cross section of the coding element 15 superimposed broken lines are shown.
  • the open narrow side 23 of the key channel 19 essentially coincides with the section of the circular arc of the circular segment shape of the coding element 15 which is located between the two broad sides 25 .
  • the stop section 31 and the two coding sections 33 of the coding element 15 are each delimited by one or more of the sides 23 , 25 of the key channel 19 and the contour of the recess 29 .
  • the coding sections 33 are each formed by a projection of the contour, i.e. a respective section of the contour that protrudes into the free space of the recess 29 compared to other sections of the contour, the projection in each case being essentially in the shape of a circular arc.
  • the stop section 31 extends at a substantially constant distance from the narrow side 23 over the entire narrow side 23 and thus also borders on sections of the two broad sides 25 that border on the narrow side 23 .
  • the two coding sections 33 are arranged separately from the stop section 31 and spaced apart from the stop section 31 along the first transverse direction Q1.
  • the two coding sections 33 extend in opposite directions to one another on one or the other of the two broad sides 25 into the key channel 19, so that they project towards one another.
  • the key channel 19 is narrowed from three sides 23, 25 from.
  • the key 17 associated with the lock cylinder 11 is also shown, which represents an embodiment of a key 17 according to the invention.
  • the key 17 has a key shank 35 which extends along a key insertion direction S, which coincides with the cylinder axis Z in the orientation of the key 17 shown, in which it can be inserted into the cylinder core 13 .
  • the key shank 35 has an elongate, essentially rectangular shape Cross-section with two narrow sides 37 and two broad sides 39, which are opposite to one another in the illustrated orientation of the key 17 with respect to the first transverse direction Q1 and the second transverse direction Q2.
  • the key 17 has a coding structure 40 which is designed to arrange the tumblers in the releasing configuration when the key 17 is inserted with its key shank 35 into the key channel 19 of the cylinder core 13 .
  • the key 17 shown is a dimple key in which the coding structure 40 is formed by a large number of dimples which are formed on the two broad sides 39 of the key shank 35 .
  • the key shank 35 is embodied symmetrically about a mirror axis parallel to the key insertion direction S, so that it can be inserted into the key channel 19 both in the orientation shown and rotated by 180° about the mirror axis, in order to thereby rotate the tumblers of the lock cylinder 11 in to move the enabling configuration.
  • a step 41 is formed in both narrow sides 37 of the key shank 35 at the same position along the key insertion direction S, so that a front section of the key shank 35 pointing in the key insertion direction S has a reduced extent in relation to the first transverse direction Q1 compared to the rest of the key shank 35 and is therefore narrower is.
  • the two planes of the step 41 are each connected to one another by a stop surface 42 oriented perpendicularly to the key insertion direction S.
  • the stop surfaces 42 of the two steps 41 each form a stop section 43 of the key shank 35.
  • the key shank 35 strikes one of these Stop sections 43 (depending on the rotational position of the key 17 with one or the other) on the stop section 31 of the coding element 15. This striking makes it possible to insert the key shank 35 in limits the key channel 19 to the correct insertion depth, in which the coding structure 40 of the key shank 35 arranges the tumblers of the lock cylinder 11 in the configuration releasing the cylinder core 13 for rotation.
  • each of the two broad sides 39 of the key shank 35 has a profile 45 in the form of a groove that extends parallel to the key insertion direction S, starting from a tip 47 of the key shank 35 pointing in the key insertion direction S, along the key insertion direction S at least as far as the steps 41, i.e. at least over the entire said front portion of the key shank 35 extends.
  • the cross section of the profiling is essentially complementary to the two coding sections 33 of the coding element 15 and therefore has the shape of a circular arc in the embodiment shown.
  • the mentioned front section of the key shank 35 can be guided past the coding sections 33 when it is inserted into the key channel 19, so that the key 17, despite the caused constriction of the keyway 19 can be inserted up to the correct insertion depth.
  • the coding element 15 rides on one of the narrow sides 37 of the key shank 35 and at the same time engages with its coding sections 33 on both sides in the profiling 45 of the two broad sides 39 of the key shank 35, so that the coding sections 33 run through the profiling 45 until the stop section 43 the corresponding narrow side 37 of the key shank 35 strikes the stop section 31 of the coding element 15 . This is particularly good in figure 5 to see where this condition, which defines the correct depth of insertion, is shown.
  • coding element 15 'of a lock cylinder not according to the invention is shown, the one to the in 2 shown formation of the coding element 15 has alternative training.
  • the coding element 15' shown also has a stop section 31' and two coding sections 33', but each has a different shape than the corresponding sections 31, 33 in 2 embodiment shown.
  • the coding sections 33' differ in 3 shown embodiment with regard to their position not only from the coding sections 33 in 2 shown embodiment but also among each other, since they are offset from each other with respect to the first transverse direction Q1. As a result, this is in 3
  • the coding element 15' shown is different from that in 2
  • the coding element 15 shown is also not mirror-symmetrical to the said mirror plane.
  • the profile 45 extends from the tip 47 of the key shank 35 to a direction perpendicular to the key insertion direction S aligned end face 49 extends. If the profiling 45 comprises a plurality of ridges or grooves, each of the ridges or grooves may extend to a corresponding end face 49 .
  • the end surfaces 49 are each at least as far away from the tip 47 of the key shank 35 as the stop section 43 with respect to the key insertion direction S, so that the key shank 35 can be guided through the recess 29 of the coding element 15 so far that the stop section 43 of the key shank 35 also reaches the stop section 31 of the coding element 15 .
  • a respective end surface 49 lies in the same plane perpendicular to the key insertion direction S as the stop section 43 of the key shank 35, when the correct insertion depth is reached, the end surface 49 also strikes the coding element 15, namely the corresponding one of the coding sections 33 of the coding element 15. In this respect, the end surface 49 and the corresponding coding section 33 then form further stop sections formed on the key shank 35 or the coding element 15 to limit the insertion of the key shank 35 into the key channel 19 to the correct insertion depth.

Landscapes

  • Lock And Its Accessories (AREA)

Claims (12)

  1. Cylindre de fermeture (11) comprenant :
    - un boîtier de cylindre ;
    - un noyau de cylindre (13) qui est logé dans le boîtier de cylindre de manière à pouvoir tourner autour d'un axe de cylindre (Z) et qui présente un canal à clé (19) s'étendant parallèlement à l'axe de cylindre (Z) dans le noyau de cylindre (13) et destiné à la tige de clé (35) d'une clé (17) associée au cylindre de fermeture (11), le canal à clé (19) présentant une section transversale allongée avec deux petits côtés (23) qui sont opposés l'un à l'autre par rapport à une première direction transversale (Q1), et avec deux grands côtés (25) qui sont opposés l'un à l'autre par rapport à une deuxième direction transversale (Q2) ;
    - ainsi que plusieurs gâchettes qui pénètrent partiellement dans le canal à clé (19) et qui sont conçues pour bloquer le noyau de cylindre (13) dans une position normale du noyau de cylindre (13) pour empêcher une rotation à partir de la position normale, dans la mesure où elles ne sont pas disposées dans une configuration libérant le noyau de cylindre (13), en particulier par la clé (17) associée ;
    dans lequel
    le cylindre de fermeture (11) comprend un élément de codage (15), et le noyau de cylindre (13) présente un logement (27) pour l'élément de codage (15), qui s'étend dans le noyau de cylindre (13) transversalement à l'axe de cylindre (Z) et qui chevauche partiellement le canal à clé (19),
    l'élément de codage (15) est conçu pour, lorsqu'il est inséré dans le logement (27), s'engager dans le canal à clé (19) sur l'un des deux petits côtés (23) par une portion de butée (31), afin de former une butée destinée à limiter, à une profondeur d'insertion correcte, l'insertion de la tige de clé (35) de la clé associée (17) dans le canal à clé (19),
    l'élément de codage (15) présente deux portions de codage (33, 33') et est conçu pour, lorsqu'il est inséré dans le logement (27), s'engager dans le canal à clé (19) par l'une des portions de codage (33, 33') sur l'un des deux grands côtés (25) et par l'autre des portions de codage (33, 33') sur l'autre des deux grands côtés (25), afin de coder un profilage autorisé (45) de la tige de clé (35),
    et l'élément de codage (15) est réalisé à symétrie axiale.
  2. Cylindre de fermeture selon la revendication 1,
    dans lequel le logement (27) est réalisé en forme de fente, en particulier sous la forme d'une entaille en forme de segment de cercle dans le noyau de cylindre (13), et s'étend le long d'un plan perpendiculaire à l'axe de cylindre (Z).
  3. Cylindre de fermeture selon la revendication 1 ou 2,
    dans lequel l'élément de codage (15) est réalisé en forme de plaquette, en particulier sous la forme d'une plaquette en forme de segment de cercle ; et/ou
    l'élément de codage (15), lorsqu'il est inséré dans le logement (27), est au moins sensiblement emprisonné de manière immobile dans le logement (27).
  4. Cylindre de fermeture selon l'une au moins des revendications précédentes,
    dans lequel l'élément de codage (15) présente un évidement (29) ayant un contour, la portion de butée (31) correspond à une portion du contour, et les portions de codage (33, 33') correspondent à une autre portion respective du contour et sont formées en particulier par une saillie respective du contour ; et/ou
    la portion de butée (31) et les portions de codage (33, 33') sont disposées à une certaine distance les unes des autres.
  5. Clé (17) destinée à être utilisée avec un cylindre de fermeture (11) selon l'une au moins des revendications précédentes,
    dans laquelle la clé (17) comprend une tige de clé (35) s'étendant selon une direction d'insertion de clé (S) et présentant une section transversale allongée avec deux petits côtés (37) opposés l'un à l'autre transversalement à la direction d'insertion de clé (S) et avec deux grands côtés (39) opposés l'un à l'autre transversalement à la direction d'insertion de clé (S),
    la tige de clé (35) présente, de préférence sur l'un au moins de ses grands côtés (39), une structure de codage (40) qui est conçue pour disposer les gâchettes du cylindre de fermeture (11) dans la configuration de libération lorsque la tige de clé (35) est insérée jusqu'à une profondeur d'insertion correcte dans le canal à clé (19) du noyau de cylindre (13) du cylindre de fermeture (11),
    la tige de clé (35) présente une portion de butée (43) qui est réalisée sous la forme d'une surface de butée (42) orientée perpendiculairement à la direction d'insertion de clé (S) et formée par un gradin (41) dans l'un des petits côtés (37) de la tige de clé (35), afin de buter contre la portion de butée (31) de l'élément de codage (15) du cylindre de fermeture (11) lors d'une insertion de la tige de clé (35) dans le canal à clé (19), lorsque la profondeur d'insertion correcte est atteinte,
    la tige de clé (35) présente un profilage (45), en particulier sous la forme d'au moins une rainure et/ou une gorge, qui est réalisé(e) dans l'un des grands côtés (39) de la tige de clé (35) et qui s'étend depuis une pointe (47) de la tige de clé (35) au moins jusqu'au gradin (41) par rapport à la direction d'insertion de clé (S), pour que, lors d'une insertion de la tige de clé (35) dans le canal à clé (19), la portion de la tige de clé (35) présentant le profilage (45) puisse passer devant les portions de codage (33, 33') de l'élément de codage (15) du cylindre de fermeture (11),
    le profilage (45) ne s'étend sensiblement que jusqu'au gradin (41),
    et la tige de clé (35) est à symétrie de révolution par rapport à un axe de symétrie parallèle à la direction d'insertion de clé (S).
  6. Ebauche de clé (17') pour réaliser une clé (17) selon la revendication 5, dans laquelle l'ébauche de clé (17') comprend une tige de clé (35) s'étendant le long d'une direction d'insertion de clé (S) et présentant une section transversale allongée avec deux petits côtés (37) opposés l'un à l'autre transversalement à la direction d'insertion de clé (S) et avec deux grands côtés (39) opposés l'un à l'autre transversalement à la direction d'insertion de clé (S),
    la tige de clé (35) présente une portion de butée (43) qui est réalisée sous la forme d'une surface de butée (42) orientée perpendiculairement à la direction d'insertion de clé (S) et formée par un gradin (41) dans l'un des petits côtés (37) de la tige de clé (35), afin de venir en butée contre la portion de butée (31) de l'élément de codage (15) du cylindre de fermeture (11) lors d'une insertion de la tige de clé (35) dans le canal à clé (19), lorsque la profondeur d'insertion correcte est atteinte,
    et la tige de clé (35) présente un profilage (45), en particulier sous la forme d'au moins une rainure et/ou une gorge, qui est réalisé(e) dans l'un des grands côtés (39) de la tige de clé (35) et qui s'étend depuis une pointe (47) de la tige de clé (35) au moins jusqu'au gradin (41) par rapport à la direction d'insertion de clé (S), pour que, lors d'une insertion de la tige de clé (35) dans le canal à clé (19), la portion de la tige de clé (35) présentant le profilage (45) puisse passer devant les portions de codage (33, 33') de l'élément de codage (15) du cylindre de fermeture (11),
    le profilage (45) ne s'étend sensiblement que jusqu'au gradin (41),
    et la tige de clé (35) est à symétrie de révolution par rapport à un axe de symétrie parallèle à la direction d'insertion de clé (S).
  7. Dispositif de fermeture (21) comprenant un cylindre de fermeture (11) selon l'une des revendications 1 à 4 ainsi qu'au moins une clé (17) selon la revendication 5, associée au cylindre de fermeture (11).
  8. Dispositif de fermeture selon la revendication 7,
    dans lequel ledit profilage (45) de la tige de clé (35) présente une rainure ou une gorge complémentaire à une portion respective des portions de codage (33, 33') de l'élément de codage (15), laquelle est réalisée dans l'un des grands côtés (39) de la tige de clé (35).
  9. Dispositif de fermeture selon la revendication 7 ou la revendication 8, dans lequel la tige de clé (35) comprend plusieurs portions de butée (43) conçues pour venir en butée contre une portion, en particulier contre la portion de butée (31) ou les portions de codage (33, 33'), de l'élément de codage (15) lors d'une insertion de la tige de clé (35) dans le canal à clé (19) du noyau de cylindre (13), lorsque la profondeur d'insertion correcte est atteinte.
  10. Dispositif de fermeture selon la revendication 9,
    dans lequel l'une des portions de butée (31) de la tige de clé (35) est réalisée sous la forme d'une surface de butée (42) orientée perpendiculairement à la direction d'insertion de clé (S), qui est formée par un gradin (41) dans l'un des petits côtés (37) de la tige de clé (35), et/ou
    l'une des portions de butée (31) de la tige de clé (35) est réalisée sous la forme d'une surface d'extrémité (49) orientée perpendiculairement à la direction d'insertion de clé (S), jusqu'à laquelle ledit profilage (45) s'étend à partir d'une pointe (47) de la tige de clé (35).
  11. Dispositif de fermeture selon l'une des revendications 8 à 10,
    dans lequel les seules butées du dispositif de fermeture (21) agissant du côté cylindre pour limiter l'insertion de la tige de clé (35) de la clé associée (17) dans le canal à clé (19) du noyau de cylindre (13) à la profondeur d'insertion correcte sont réalisées sur l'élément de codage (15), en particulier par la portion de butée (31) ainsi que, le cas échéant, par une ou plusieurs autres portions de butée et/ou par les portions de codage (33, 33') ainsi que, le cas échéant, par une ou plusieurs autres portions de codage de l'élément de codage (15).
  12. Système de fermeture comprenant un dispositif de fermeture selon l'une au moins des revendications 7 à 11,
    dans lequel le dispositif de fermeture (21) comprend plusieurs éléments de codage (15, 15') différents du type mentionné, qui se distinguent quant à leurs portions de codage (33, 33'), et comprend plusieurs clés (17) associées différentes, qui se distinguent quant aux profilages (45) de leurs tiges de clé (35),
    pour chaque élément de codage (15, 15'), il est prévu au moins une clé associée (17) qui correspond à l'élément de codage (15, 15') dans la mesure où un profilage (45) correspondant aux portions de codage (33, 33') dudit élément de codage (15) est réalisé sur la tige de clé (35) de ladite clé, de sorte que l'un des éléments de codage (15, 15') peut être inséré au choix dans le logement (27) du noyau de cylindre (13), afin de limiter ainsi la possibilité d'insertion des clés (17) dans le noyau de cylindre (13) à la clé associée (17) correspondant audit élément de codage (15).
EP21178108.3A 2020-06-30 2021-06-08 Cylindre de fermeture, dispositif de fermeture, système de fermeture, clé et ébauche de clé Active EP3933152B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020117226.5A DE102020117226A1 (de) 2020-06-30 2020-06-30 Schließzylinder, Schließvorrichtung, Schließsystem, Schlüssel und Schlüsselrohling

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EP3933152A1 EP3933152A1 (fr) 2022-01-05
EP3933152B1 true EP3933152B1 (fr) 2023-09-06
EP3933152C0 EP3933152C0 (fr) 2023-09-06

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EP (1) EP3933152B1 (fr)
DE (1) DE102020117226A1 (fr)
ES (1) ES2963100T3 (fr)
ZA (1) ZA202104138B (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT371880B (de) * 1980-09-25 1983-08-10 Evva Werke Flachschluessel
JPS5811272A (ja) * 1981-07-15 1983-01-22 美和ロツク株式会社 錠前におけるキ−ガイドとプラグを別体として結合したシリンダ−
EP1068415B1 (fr) * 1998-04-04 2005-06-08 EVVA-Werk Spezialerzeugung von Zylinder- und Sicherheitsschlössern Gesellschaft m.b.H. & Co. Kommanditgesellschaft Serrure à barillet avec clef plate
FI108308B (fi) 1998-09-25 2001-12-31 Abloy Oy Sylinterilukko-avain-yhdistelmä
DE19919568A1 (de) 1999-04-29 2000-11-02 Bremicker Soehne Kg A Schließsystem
AT9156U1 (de) 2006-01-05 2007-05-15 Evva Werke Zylinderschloss mit schieber sowie flachschlüssel mit steuerrippe
DE102009050129A1 (de) * 2009-10-21 2011-04-28 Abus Pfaffenhain Gmbh Schließsystem
DE102010001909A1 (de) * 2010-02-12 2011-08-18 DORMA GmbH + Co. KG, 58256 Schließzylinder
FR2988760B1 (fr) * 2012-03-28 2014-03-21 Assa Abloy Aube Anjou Cylindre de securite a embrayeurs, et cle correspondante
EP3375956A1 (fr) * 2017-03-17 2018-09-19 Assa Ab Serrure à barillet et système de clé

Also Published As

Publication number Publication date
EP3933152C0 (fr) 2023-09-06
EP3933152A1 (fr) 2022-01-05
DE102020117226A1 (de) 2021-12-30
ES2963100T3 (es) 2024-03-25
ZA202104138B (en) 2022-09-28

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