EP3640417B1 - Schlüssel für einen schliesszylinder - Google Patents

Schlüssel für einen schliesszylinder Download PDF

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Publication number
EP3640417B1
EP3640417B1 EP18200479.6A EP18200479A EP3640417B1 EP 3640417 B1 EP3640417 B1 EP 3640417B1 EP 18200479 A EP18200479 A EP 18200479A EP 3640417 B1 EP3640417 B1 EP 3640417B1
Authority
EP
European Patent Office
Prior art keywords
key
wear indicator
wear
lock cylinder
shank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18200479.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3640417A1 (de
Inventor
Gerhard Hennecke
Klaus Ziaja
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.)
BKS GmbH
Original Assignee
BKS GmbH
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
Priority to EP18200479.6A priority Critical patent/EP3640417B1/de
Application filed by BKS GmbH filed Critical BKS GmbH
Priority to RS20220419A priority patent/RS63187B1/sr
Priority to PT182004796T priority patent/PT3640417T/pt
Priority to PL18200479T priority patent/PL3640417T3/pl
Priority to HUE18200479A priority patent/HUE058724T2/hu
Priority to SI201830602T priority patent/SI3640417T1/sl
Priority to ES18200479T priority patent/ES2909032T3/es
Priority to HRP20220403TT priority patent/HRP20220403T1/hr
Publication of EP3640417A1 publication Critical patent/EP3640417A1/de
Application granted granted Critical
Publication of EP3640417B1 publication Critical patent/EP3640417B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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

Definitions

  • the invention relates to a key for a lock cylinder with the features of the preamble of claim 1.
  • the invention also relates to a locking system with the features of the independent claim.
  • Keys for a lock cylinder of the type mentioned are known from the prior art, for example DE 1 137 341 A1 .
  • Such keys have a key bow and a key shank extending from the key bow and having notches formed thereon for aligning tumblers provided on an associated lock cylinder.
  • Such keys have proven themselves because they offer a high level of security for the consumer, among other things due to the large number of individual locking combinations.
  • the object of the invention is to enable long-term, reliable operation in locking cylinders. In this case, it is desirable for a user to be signaled in good time that a key needs to be exchanged.
  • the key is characterized in that the key shank has a wear indicator for signaling or for displaying the state of wear of the key.
  • the wear indicator is set up in particular in such a way that when the key is worn out, a user is signaled that the key is worn out or that the key needs to be replaced (preventive replacement procurement).
  • Such a configuration has the advantage that a sudden functional failure of a lock cylinder caused by key wear can be largely avoided, since the wear indicator signals that a key exchange is necessary when the key is worn. Since the key has the softer material in the usual material pairings of key and lock cylinder, the necessary key exchange is indicated in good time. If the worn key is replaced with a new key, the operation of a lock cylinder can be maintained permanently. This contributes to the safe operation of a locking cylinder and also complete locking systems.
  • the key can be designed as a key for a profile cylinder (profile cylinder key) and the lock cylinder can be designed as a profile cylinder. Regardless of this, the key shank can move along an axial direction (longitudinal direction of the shank) extending away from the bow of the key.
  • the key shank can have a shank section provided without incisions ("key shank neck” or “key shank stem”) and then a shank section provided with incisions for aligning tumblers.
  • the wear indicator is designed in such a way that a key exchange is signaled when the lock cylinder (associated with the key) can still be actuated by the key for a certain remaining period (the lock cylinder has not yet failed). This favors a timely procurement of a replacement or a timely replacement of the key.
  • a necessary exchange of keys can then be signaled when a wear limit value is exceeded, for example 70 percent of the maximum possible wear.
  • a wear limit value for example 70 percent of the maximum possible wear.
  • the wear indicator can, for example, in its height (elevation) or its depth (depression) relative to a reference surface, for example an end face of a wrench tip, corresponding to the wear limit value be measured. If the elevation or depression is no longer visible, the defined wear limit has been exceeded.
  • the wear indicator may be formed independently of locking features incorporated into the key. This means that the wear indicator is not realized by a locking feature itself, but by a feature that is designed separately from it and serves as a wear indicator. This favors the perception of the wear indicator and allows the wear indicator to be configured independently of any locking features.
  • the wear indicator can be formed separately from incisions and/or profiles or profile features of the key shank.
  • the wear indicator can advantageously be designed as a haptic wear indicator and/or as an optical wear indicator. This can be used to signal the state of wear to the key user in a haptic and/or optical way.
  • a haptic wear indicator can be designed as a wear feature on the key shank, which can be felt by the user, for example by means of a "fingernail test”.
  • An optical wear indicator can have an optical (wear) feature that differs in particular from the key shank or the end face, which optically signals the state of wear to a key user, for example by means of a a micrograph, a matt surface or a color code.
  • the wear indicator has an elevation formed on the key shank (raised relative to the key shank or to the key shank profile) or depression (recessed relative to the key shank or to the key shank profile).
  • the elevation or depression can be made from the same material and in one piece with the key shank.
  • the wear indicator can expediently have a color code. This improves the perception of the wear indicator by highlighting it in color compared to the key shank.
  • the color coding can be designed in such a way that it also decreases as material is removed from the key shank due to wear.
  • the color coding can be implemented in several stages, for example by means of several, preferably different, color layers. A two-stage traffic light system (green-red) or a three-stage traffic light system (green-orange-red) can thus be implemented.
  • the color green can indicate low wear, the color orange indicates increased wear and the color red critical wear.
  • the color red signals to a key user that a replacement key must be procured urgently.
  • the color coding can be arranged, for example, in a recess or between two elevations of a wear indicator. If the indentation or the elevations are no longer recognizable relative to their reference surface due to wear, the color coding has also been removed accordingly.
  • the wear indicator can be formed or arranged on the end face of the key tip of the key shank.
  • the state of wear of the key tip or the end face of the key tip can be signaled.
  • the tip of the key is of great importance for the operation of the key and lock cylinder, as this is the first thing that comes into contact with components of the lock cylinder when the key is inserted in the lock channel and is subject to high wear due to the comparatively long insertion distance in the lock channel.
  • the tip of the key actuates the coupling element or the coupling of the lock cylinder, which couples a cylinder core of the lock cylinder to the lock bit. If the tip of the key is too worn, it is no longer possible to operate the lock bit because the "spin" described above occurs.
  • the key shank can have incisions for aligning tumblers of a lock cylinder.
  • the wear indicator can be formed on or between incisions on the key shank, in particular on flanks of the incisions, for example on two opposite flanks of an incision in the key shank. This can be used to signal the state of wear on the notches for aligning the tumblers.
  • the incisions on the key shaft are also very important for the operation of the key and lock cylinder, as they move the core pins in the lock cylinder to the release position. If the notches on the key shank are too worn, it is no longer possible to move all the core pins into the release position, so that the cylinder core in the lock cylinder is not released and therefore cannot be turned.
  • Such a wear indicator on the incisions can be provided as an alternative or in addition to a wear indicator on the key tip. If there is a wear indicator on the incisions and a wear indicator on the tip of the key, a particularly meaningful signaling of the state of wear of the key is possible, since wear on the incisions or on the tip of the key can be the decisive factor in the need for a key replacement.
  • the key can be designed as a conventional lock cylinder key or as a reversible key.
  • the detection of the state of wear is of great importance for both key types.
  • a conventional lock cylinder key (bit key) can only be inserted into the lock channel in one orientation associated lock cylinder are introduced.
  • a reversible key can be inserted into the keyway of an associated lock cylinder in at least two different orientations.
  • FIG 12 shows a prior art key for a lock cylinder, denoted as a whole by the reference numeral 1 (key 1 is shown in the "overhead" position).
  • the key 1 has a key bow 2 and a key shank 4 extending away from the key bow 2 in an axial direction 3 .
  • the key shank 4 has a key tip 5 at the free end. Notches 6 for actuating tumblers of an associated lock cylinder are formed on the key shank 4 (not shown in detail).
  • the key 1 is designed as a conventional lock cylinder key (bit key).
  • figure 2 shows a key, denoted overall by reference numeral 10, for a lock cylinder according to the present application (shown only partially).
  • the structure of the key 10 basically corresponds to that in figure 1 shown key 1.
  • the key 10 has a key bow (not shown) and a key shank 16 extending away from the key bow along an axial direction 14.
  • the key shank 16 has a key tip 18 at the free end.
  • the face or face of the key tip 18 is denoted by the reference numeral 19 (face or face 19).
  • notches 20 are provided on the key shank 16 for aligning tumblers of an associated lock cylinder (provided with reference numbers only once).
  • the key 10 is designed as a conventional lock cylinder key (bit key).
  • the key shank 16 also has a wear indicator 22 for signaling the state of wear of the key 10 .
  • the wear indicator 22 is formed on the face of the key tip 18 of the key shank 16 .
  • the wear indicator 22 has two indentations 24 formed on the key shank 16, which are indented relative to the end face 19 (cf. enlarged view "Detail A"). The indentations 24 are spaced from each other.
  • the state of wear of the key shank 16 can be seen from the indentations 24 in particular at the key tip 18 . If the indentations 24 are not or only barely perceptible to the key user, for example visually and/or haptically, the state of wear signals to the key user that the key 10 needs to be replaced.
  • the wear indicator 22 can be designed in such a way that a worn condition, ie a required key exchange, is already signaled when the lock cylinder associated with the key 10 can still be actuated by the key 10 .
  • a worn condition or a necessary key exchange can be signaled when a defined wear limit value is exceeded, for example 70 percent of the maximum possible wear, as explained above.
  • the depressions 24 correspond in their depth (depth relative to the end face 19) to the defined wear limit value. If the indentations 24 are no longer or only barely perceptible to the key user, the defined wear limit value has been reached and the key 10 should be replaced.
  • the wear indicator 22 is formed independently of locking features incorporated into the key 10, e.g. separately from cuts or profiles or profile features.
  • the wear indicator 22 is initially designed as a haptic wear indicator 22, since the indentations 24 can be felt haptically, for example by a "fingernail test" by the key user.
  • the wear indicator 22 is also designed as an optical wear indicator 22, since the indentations 24 can also be recognized visually, for example by the shadow that results in the indentations 24.
  • the perceptibility of the optical wear indicator 22 can be further improved by forming a feature in the depressions 24 that is optically different from the end face 19 , for example a micrograph, a matt surface or a color code.
  • the wear indicator 22 can have a color code, possibly a multi-stage color code ("traffic light display”), as explained above.
  • the key 10 according to figure 3 has, in addition to the wear indicator 22 on the key tip 18, a (further) wear indicator 26 which is formed on an incision 20 for aligning tumblers of an associated lock cylinder.
  • the wear indicator 26 is formed on flanks 28 of the incision 20 (cf. enlarged view "Detail B").
  • the wear indicator 26 has two indentations 30 formed on the flanks, which are recessed relative to the flanks 28 (cf. enlarged view "Detail A").
  • a depression 30 is arranged on a flank 28 , in particular symmetrically in relation to the incision 20 .
  • the state of wear of an incision 20 in the key shank 16 can be seen from the indentations 30 . If the indentations 30 are not or only barely perceptible to the key user, for example visually and/or haptically, the state of wear signals to the key user that the key 10 needs to be replaced.
  • figure 4 shows another key for a lock cylinder according to the present application, which is denoted in its entirety by the reference numeral 10 (only partially shown).
  • the key 10 is designed as a reversible key.
  • the key 10 has a key bow (not shown) and a key shank 16 extending away from the key bow along an axial direction 14 .
  • the key shank 16 has a key tip 18 at the free end.
  • the face of the key tip 18 is denoted by the reference numeral 19 (face or face 19).
  • Incisions 20 are provided on both sides of the key shank 16 for aligning tumblers of an associated lock cylinder (provided with reference numbers only once).
  • the end face 19 has a central section 19' oriented orthogonally to the axial direction 14 and, on both sides thereof, an angled section 19'' adjacent to the central section 19' (cf. enlarged view "Detail C").
  • the key shank 16 also has a wear indicator 22 for signaling the state of wear of the key 10 .
  • the wear indicator 22 is formed on the face of the key tip 18 of the key shank 16 .
  • the Wear indicator 22 has two elevations 32 formed on the key shank 16 and spaced apart from one another, which are raised relative to the end face 19 (cf. enlarged view "Detail C").
  • the elevations 32 are each arranged in the angled sections 19 ′′ of the end face 19 . Between two adjacent elevations 32 there is an intermediate space 34 (as part of the angled section 19'').
  • the level of the floor 36 of the intermediate space 34 can correspond to the sections 19'' (floor 36 of the intermediate space 34 and the angled section 19 in question '' lie in one plane).
  • the state of wear of the key shank 16 can be seen from the elevations 32 . If the elevations 32 are not or only barely perceptible to the key user, for example visually and/or haptically, the state of wear signals to the key user that the key 10 needs to be replaced.
  • the wear indicator 22 can be designed in such a way that a worn condition or a required key exchange is signaled when a defined wear limit value is exceeded, for example 70 percent of the maximum possible wear, as explained above.
  • a defined wear limit value for example 70 percent of the maximum possible wear, as explained above.
  • the elevations 32 in their height correspond to the defined wear limit value.
  • the wear indicator 22 is formed independently of locking features incorporated into the key 10, e.g. separately from cuts or profiles or profile features.
  • the wear indicator 22 is designed as a haptic wear indicator 22 and also as a visual wear indicator 22 by being designed with elevations 32 .
  • the elevations 32 can be felt haptically, for example by a "fingernail test" by the key user.
  • the elevations 32 can also be recognized visually, for example by the shadow that results between the elevations 32 .
  • the perceptibility of the wear indicator 22 can be further improved if a feature is formed between the elevations 32 that is optically different from the end face 19 or the elevations 32, for example a micrograph, a matt surface or a color code.
  • the wear indicator 22 can have a color code, possibly a multi-level color code, as explained above. Such a color coding can be formed between the elevations 32 .

Landscapes

  • Lock And Its Accessories (AREA)
EP18200479.6A 2018-10-15 2018-10-15 Schlüssel für einen schliesszylinder Active EP3640417B1 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
RS20220419A RS63187B1 (sr) 2018-10-15 2018-10-15 Ključ za cilindar brave
PT182004796T PT3640417T (pt) 2018-10-15 2018-10-15 Chave para um cilindro de fechadura
PL18200479T PL3640417T3 (pl) 2018-10-15 2018-10-15 Klucz do wkładki zamka
HUE18200479A HUE058724T2 (hu) 2018-10-15 2018-10-15 Kulcs zárhengerhez
EP18200479.6A EP3640417B1 (de) 2018-10-15 2018-10-15 Schlüssel für einen schliesszylinder
ES18200479T ES2909032T3 (es) 2018-10-15 2018-10-15 Llave para un cilindro de cierre
SI201830602T SI3640417T1 (sl) 2018-10-15 2018-10-15 Ključ za cilindrično ključavnico
HRP20220403TT HRP20220403T1 (hr) 2018-10-15 2018-10-15 Ključ za cilindar brave

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18200479.6A EP3640417B1 (de) 2018-10-15 2018-10-15 Schlüssel für einen schliesszylinder

Publications (2)

Publication Number Publication Date
EP3640417A1 EP3640417A1 (de) 2020-04-22
EP3640417B1 true EP3640417B1 (de) 2022-03-09

Family

ID=63862044

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18200479.6A Active EP3640417B1 (de) 2018-10-15 2018-10-15 Schlüssel für einen schliesszylinder

Country Status (8)

Country Link
EP (1) EP3640417B1 (hu)
ES (1) ES2909032T3 (hu)
HR (1) HRP20220403T1 (hu)
HU (1) HUE058724T2 (hu)
PL (1) PL3640417T3 (hu)
PT (1) PT3640417T (hu)
RS (1) RS63187B1 (hu)
SI (1) SI3640417T1 (hu)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1137341B (de) 1961-04-01 1962-09-27 Karrenberg Fa Wilhelm Profilzylinder fuer Einsteckschloesser
DE19606740C2 (de) * 1996-02-23 1998-06-10 Ikon Praezisionstechnik Schloß-Schlüsselsystem
DE102004052930B3 (de) * 2004-10-29 2006-03-30 Bks Gmbh Sicherheitsschlüssel
DE102007000176A1 (de) * 2007-03-27 2008-10-02 Aug. Winkhaus Gmbh & Co. Kg Schlüssel für einen Schließzylinder und Schlüssel mit einem Schließzylinder

Also Published As

Publication number Publication date
EP3640417A1 (de) 2020-04-22
PT3640417T (pt) 2022-03-22
PL3640417T3 (pl) 2022-05-30
ES2909032T3 (es) 2022-05-05
SI3640417T1 (sl) 2022-04-29
HUE058724T2 (hu) 2022-09-28
RS63187B1 (sr) 2022-06-30
HRP20220403T1 (hr) 2022-05-27

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