EP0296337A1 - Profile locking cylinder - Google Patents

Profile locking cylinder Download PDF

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Publication number
EP0296337A1
EP0296337A1 EP88106976A EP88106976A EP0296337A1 EP 0296337 A1 EP0296337 A1 EP 0296337A1 EP 88106976 A EP88106976 A EP 88106976A EP 88106976 A EP88106976 A EP 88106976A EP 0296337 A1 EP0296337 A1 EP 0296337A1
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EP
European Patent Office
Prior art keywords
key
housing part
cylinder core
cylinder
core
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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.)
Granted
Application number
EP88106976A
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German (de)
French (fr)
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EP0296337B1 (en
Inventor
Hans-Dieter Niemann
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Individual
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Individual
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Publication date
Priority claimed from DE8706551U external-priority patent/DE8706551U1/en
Priority claimed from DE8708506U external-priority patent/DE8708506U1/en
Application filed by Individual filed Critical Individual
Priority to AT88106976T priority Critical patent/ATE64170T1/en
Publication of EP0296337A1 publication Critical patent/EP0296337A1/en
Application granted granted Critical
Publication of EP0296337B1 publication Critical patent/EP0296337B1/en
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in

Definitions

  • the invention relates to a profile lock cylinder with a cylinder housing, the first housing part containing a first axial bore and a cylinder core axially immovably mounted therein as well as spring-loaded tumbler elements, and a connecting bar thus leaving a recess for the lock bit rotatable by the cylinder core integrally connected second housing part with a second axial bore located therein, coaxial to the first axial bore, the cylinder core containing a longitudinal key channel for receiving a key provided with incisions and further tumbler elements, which together with the tumbler elements accommodated in the first housing part into a rotational mobility of the cylinder core enabling release position are to be moved.
  • Profile lock cylinders of this type are generally known for security locks, in both so-called half-cylinder and double-cylinder shapes.
  • the second housing part is axially very short and its correspondingly short axial bore only serves to better support the locking bar, while in the double cylinder the second housing part is used to accommodate a further cylinder core and is designed in accordance with the former housing part.
  • the axial bores in the two housing parts run coaxially with one another and are continuously smooth-walled, just like the cylinder cores stored therein.
  • the associated key has such incisions that the tumbler elements, which usually consist of housing pins and core pins, are shifted against the spring load with the help of this key to such an extent that the separation points between each housing pin and a core pin match the interface between the cylinder core and the cylinder housing. Then the cylinder core can be turned with the key and the lock bit located on the core actuates the associated lock either in the opening or closing direction.
  • the tumbler elements which usually consist of housing pins and core pins
  • One method of forcibly opening the lock without an associated key is to forcibly pull out the cylinder core, thereby creating access to the lock bit and thus opening the lock.
  • This violent pulling out takes place, for example, by means of a corkscrew-like cutting element, for example a screw, which is screwed into the key channel and is thus firmly anchored to the cylinder core in such a way that it can be pulled out of the cylinder housing.
  • the locking tumbler pins are sheared off.
  • This can also be an axial fixation of the rotatable one Do not prevent the circlip serving as the cylinder core in the cylinder housing.
  • the invention is therefore based on the object of improving a profile lock cylinder of the type mentioned at the outset so that a forceful pulling out of the cylinder core from the key insert side of its cylinder housing part is not possible.
  • This object is achieved in that on the cylinder core on the lockable side there is an undetachably attached ring projection which engages axially behind the first housing part and the second axial bore in the second housing part has a diameter which is at least as large as the outside diameter of this ring projection.
  • the cylinder core is secured against being pulled out by an annular projection provided on it on the closable side.
  • the ring projection on the cylinder core can be made solid in the desired manner. Since the cylinder core with the associated cylinder housing part is assembled from the lockable side, the ring projection can therefore be designed with the safety conditions in mind, regardless of the installation process.
  • the ring projection can also consist of hard metal, for example.
  • the ridge projection is in one piece with the cylinder core, it being understood that that it can also consist of the same material as the cylinder core. If the cylinder core is produced by injection molding, the ring projection can also be produced in the same production process, so that the production outlay is practically negligible.
  • an annular projection that partially overlaps the cylinder core on the front side can also be present on the first housing part on the key insertion side.
  • This can be closed all around and the key channel on the back of the key can be filled by a web, the height of which is equal to the height of this ring projection.
  • the all-round closed design of this ring projection ensures additional pull-out resistance and requires a key channel closed on the key back side, for which purpose a web in the cylinder core is used, with which the housing pins are held down when the cylinder core is rotated.
  • the web is in one piece with the cylinder core and pin bore sections located in the web are completely filled.
  • the ring projection on the first cylinder housing part can be slit key width at least in front of the section of the key channel receiving the key back and the key can have a slot receiving this ring projection when the cylinder core rotates.
  • the key channel can have a conventional size and in particular be open at the top, so that the back of the key serves to hold down the housing pins when the cylinder core is rotated.
  • the cylinder core for forming the annular projection can have a conical outer circumference tapering at least on one longitudinal section on the key insert side, and the first axial bore located in the first housing part can be correspondingly conical.
  • the taper or the inclination of the outer circumference of the core need only be slight, for example 0.5 degrees. This is sufficient for the cylinder housing to be able to offer sufficient resistance to the removal of the cylinder core with the usual violent means. In any case, the violent means used to destroy common tumbler pins or circlips do not lead to the goal.
  • the cylinder housing and cylinder core are sufficiently solid to be able to provide the required resistance.
  • both can be given the required shape in simple operations. If the cylinder core and the cylinder housing form a cylindrical key straight guide section in the initial region of the key channel, appropriate production must take place for the conical surface which is only partially present over the length of the cylinder core and the associated cylinder housing part, but the key straight guide section can ensure the horizontal arrangement of the key shaft in the cylinder core.
  • the movable tumbler elements are spherical in the area of the parting plane formed by the cylinder core and the cylinder housing part to a degree that compensates for the height difference formed by the conicity between the beginning and end of the cone.
  • the crowning of the movable tumbler elements ensures that the latter, in particular the pins of spring-loaded pin tumblers, regardless of the taper in the same dimensions and in the proven th design can also be used with lock cylinders with a conical cylinder core, as with conventional lock cylinders. Existing tolerances are also irrelevant. Rather, the different levels of the parting plane due to the taper are all in the region of the crown of the moving tumblers.
  • the locking cylinder 10 shown in Fig. 1 is a half cylinder approximately of the profile of Fig. 4.
  • the locking cylinder 10 has a cylinder housing 11, which consists of a first housing part 11 'and a second housing part 11', which are connected to each other via the connecting web 11 ' are.
  • a first axial bore 27 and an axially immovably mounted cylinder core 12 are contained therein.
  • the connecting web 11 ′′′ there is a threaded bore 13 for the engagement of a fastening screw with which the locking cylinder 10 is fixed in a lock housing.
  • the bearing of the locking bar 15 serves on both sides of the locking bar 15 existing bearing rings 16, and also the second axial bore 33 in the leg 32 of the second housing part 11 ⁇ .
  • the storage of the locking bar 15, its design and its assembly with the cylinder core 12 are conventional and are therefore not shown in detail.
  • the cylinder housing part 11 has a plurality of side by side arranged in a row pin holes 17, each receiving a spring 18, which is supported at one end on the bore bottom 19 and the other end on a housing pin 20.
  • the housing pin 20 transmits the force of the spring 18 to a core pin 21, which projects into a key channel 22 of the cylinder core 12.
  • the key channel 22 receives the key shaft 23 of the key 24, so that its key incisions 25 reach the core pins 21 in a predetermined position. Since the core pins 21 are of different lengths and the depth of the key incisions 25 is specifically matched to the different length of the core pins 21, these are held at different heights by the key shaft 23 or by the key incisions 25 on the key side in the manner shown in FIG. 1, however so that the core pins 21 housing pin project axially equidistantly and in particular seal off with the outer circumference of the cylinder core 12.
  • the core pin-side ends 26 of the housing pins 20 also terminate with the inner circumference of the bore 27 of the cylinder housing 11 which rotatably supports the cylinder core 12, so that the cylinder core 12 can be rotated by means of the key 24, which due to its rotationally fixed connection to the lock bit 15 increases whose rotation and thus leads to a lock actuation.
  • the key 24 can be inserted exactly into the position shown in FIG. 1 in the key channel 22, the key 24 has an insertion stop 28 and the cross section of the key 24 has key notches 29, so that only one key 24 with one through the notches 29 conditional shaft profile can be inserted into the key channel 22.
  • the profile of the key channel 22 is, for example, similar to that of the channel 22 in FIG. 4.
  • the cylinder housing part 11 On the key insertion side, the cylinder housing part 11 'has an annular projection 30 which forms an abutment for the insertion stop 28 of the key 24 and, moreover, prevents the cylinder core 12 from being pulled out against the direction of insertion of the key 24.
  • the ring projection 30 thus reduces the diameter of the bore 27 of the cylinder housing 11.
  • the cylinder core 12 must be installed in this bore 27 on the lockable side, that is to say in FIG. 1 from right to left through the axial bore 33 present in the second, axially short housing part 11 through it.
  • the back 35 of the key 24 is not quite as high as in the case of a key of a locking cylinder without a ring projection.
  • the key channel 22 is not completely through the Key back 35 filled, which consequently can not ensure that the housing pins 20 are held down by the key 24 at its corresponding rotational position.
  • the key channel 22 is filled on the key back side by a web 34 which guides the key shaft 23 on the key back 35.
  • the web 34 serves to hold down the housing pins 20 when the key 24 is in a corresponding rotational position.
  • the web 34 is produced in one piece with the cylinder core 12.
  • the ring projection 31 on the closable side thereof with which the cylinder core engages in a corresponding, not specified annular groove of the cylinder housing part 11 ', so that it assumes the desired position in which its core pins 21 align with the housing pins 20.
  • this annular projection 31 cannot be reached by unauthorized persons and therefore cannot be drilled out from the outside.
  • the axial bore 33 in the second housing part 11 'or in the leg 32 has a diameter which is at least equal to the outer diameter of the ring projection 31 in order to be able to insert the cylinder core 12 with the ring projection 31.
  • Such a dimensioned bore 33 is unproblematic in the profile half cylinder shown in FIG. 1.
  • the second cylinder core to be installed must also have a correspondingly larger diameter.
  • the pin bores 17 are only partially occupied by a spring 17, a housing pin 20 and a core pin 21. They are made by example as in direction b is drilled through the cylinder housing part 11 'and the cylinder core 12.
  • the resulting bore sections 36 in the cylinder housing part 11 'and 37 in the cylinder core 12 above the key back 35 must be closed so that the core pins 21 are not in open bore sections 36 of the cylinder housing 11 when the core 12 is rotated, and thus the housing pins 20 are not in open bore sections 37 of the cylinder core 12 and prevent its further turning. This filling of the relevant bore sections 36, 37 takes place, for example, by soldering.
  • the half cylinder shown in FIGS. 2 to 4 consists essentially of the same components as the half cylinder of FIG. 1. It is essential here, however, that the ring projection 30 on the key insertion side has a slot 38, so that the key back 23 has a customary height and can be inserted unhindered into the key channel 22 by the ring projection 30. However, since the key 24 could not be rotated from the inserted position because the ring projection 30 would prevent this, the key 24 is provided with a slot 39, the depth and width of which are matched to the height and width of the ring projection 30.
  • the profile lock cylinder 10 shown in FIGS. 5 and 6 largely coincides with the profile lock cylinder described above.
  • the corresponding components are all given the same names and reference numerals.
  • the cylinder core 12 is conical here to form the axially securing ring projection, namely over its length section 1.
  • the conicity given on this length section 1 is determined by the difference between the rear, largest diameter h and the front, smallest Diameter d of the cylinder core 12 in a straight line of the surface lines over the entire conical outer circumference 41 of the cylinder core 12.
  • the taper is only slight, for example the surface lines have an inclination of approximately 0.5 degrees relative to the horizontal or against the cylinder core axis 43. This slight inclination is sufficient so that the cylinder core 12 is not forced axially, to the left in FIG. 5, can be pulled out of the cylinder housing part 11 '.
  • the key 24 is usually held in the key channel 22 in such a way that it maintains the position shown in FIG. However, it is also possible that the key 24 does not maintain this position or does not maintain it to the desired extent, that is to say under the pressure of the tumbler springs 18 or as a result of slanted insertion upwards into the free area 44 of the key channel 22 between the key back 35 and the cylinder housing 11. This is possible in the case of larger key tolerances, or if the key does not have enough or no longitudinal notches 29. In contrast to the illustration in FIG. 5, such designs are also suitable, for example, in the case of locking cylinders provided with magnetic locks.
  • the key straight guide section 40 shown in FIG. 5 which is formed over the length s of the cylinder housing part 11 'and the cylinder core 12 by both in the area of the key channel 22.
  • This key straight guide section 40 requires a cylindrical section of the cylinder core 12 which extends over the length s. Such a comparatively short length section of the cylinder core 12 is sufficient to hold the key shaft 23 to keep it sufficiently straight or horizontal.
  • the key channel 22 could just as well be at least partially closed on the back, for example by a pin crossing the channel 22 outside the actual key guide, on which the key, which is entering at an incline, slides with its beveled key tip and thereby reaches and is held in its axially parallel position .
  • FIG. 5 Another measure is to form the housing pins 20 and core pins 21 shown in FIG. 5 on their mutually facing support surfaces in the manner shown.
  • the crowning is dimensioned such that the height differences formed by the taper or the difference between h and d between the beginning and end of the cone are irrelevant when closing, because the separating surface sections of the cylinder core 12, which are somewhat offset in height, meet crowned and consequently evasive pin ends, so that the key 24 and thus the cylinder core 12 can be rotated.
  • the tumbler pins 20, 21 then have exactly the position shown in FIG. 5 in the region of the bore 27 or the parting plane.
  • the taper of the cylinder core 12 has the prerequisite that the cylinder core 12 here from the lockable side, ie through the existing in the second housing half 11 ⁇ or in the housing leg 32 through hole 33, must be installed in the bore 27 of the cylinder housing part 11 ' .
  • the bore 33 on the inside of the door, even in the case of a profile double cylinder housing, is thus somewhat larger than the largest diameter h at the end of the cone, in order to be able to insert the cylinder core 12.

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  • Lock And Its Accessories (AREA)

Abstract

Profile lock cylinders (10) have a cylinder housing (11) which consists of a first housing part (11'), containing a first axial bore (27) and a cylinder core (12) supported axially non-displaceably therein as well as partially also spring-loaded tumbler elements (18, 20), and of a second housing part (11'') connected integrally to the first via an indentation (14) for the beard (15) together with a connecting web (11''') left free, and with a second axial bore (33) located in this second housing part and extending coaxially relative to the first axial bore. In the cylinder core (12) there are a key channel (22) extending longitudinally and intended for receiving a key (24) equipped with indentations (25), as well as further tumbler elements (21) which are to be moved into a release position allowing the rotational mobility of the cylinder core (12). In order reliably to prevent the cylinder core (12) from being pulled out of its housing part (11') forcibly on the key-insertion side, on the cylinder core (12) there is on the beard side an unreleasably attached annular projection (31) engaging axially behind the first housing part (11'), whilst the second axial bore (33) present in the second housing part (11'') has a diameter which is at least as large as the outside diameter of this annular projection (31). <IMAGE>

Description

Die Erfindung bezieht sich auf einen Profilschließ­zylinder mit einem Zylindergehäuse, das aus einem eine erste Axialbohrung und einen darin axial unverschieblich lagernden Zylinderkern sowie teilweise auch federbelastete Zuhaltungselemente enthaltenden ersten Gehäuseteil und einem damit über einen einen Einschnitt für den durch den Zylinderkern verdrehbaren Schließbart neben sich freilas­senden Verbindungssteg einstückig verbundenen zweiten Ge­häuseteil mit einer darin gelegenen zweiten, koaxial zur ersten verlaufenden Axialbohrung besteht, wobei der Zylinderkern einen in Längsrichtung verlaufenden Schlüssel­kanal zur Aufnahme eines mit Einschnitten versehenen Schlüssels sowie weitere Zuhaltungselemente enthält, die zusammen mit den im ersten Gehäuseteil untergebrachten Zuhaltungselementen in eine die Drehbeweglichkeit des Zy­linderkerns ermöglichende Freigabestellung zu bewegen sind.The invention relates to a profile lock cylinder with a cylinder housing, the first housing part containing a first axial bore and a cylinder core axially immovably mounted therein as well as spring-loaded tumbler elements, and a connecting bar thus leaving a recess for the lock bit rotatable by the cylinder core integrally connected second housing part with a second axial bore located therein, coaxial to the first axial bore, the cylinder core containing a longitudinal key channel for receiving a key provided with incisions and further tumbler elements, which together with the tumbler elements accommodated in the first housing part into a rotational mobility of the cylinder core enabling release position are to be moved.

Derartige Profilschließzylinder sind für Sicherheits­schlösser allgemein bekannt, und zwar sowohl in soge­nannter Halbzylinder- als auch Doppelzylinder-Form. Im ersteren Falle ist das zweite Gehäuseteil axial sehr kurz ausgebildet und seine entsprechend kurz gehaltene Axialbohrung dient lediglich der besseren Lagerung des Schließbarts, während beim Doppelzylinder das zweite Gehäuseteil zur Aufnahme eines weiteren Zylinderkerns dient und entsprechend dem ersteren Gehäuseteil ausge­bildet ist. In beiden Fällen verlaufen die in den bei­den Gehäuseteilen vorhandenen Axialbohrungen koaxial zu­einander und durchgehend glattwandig, ebenso wie die da­rin lagernden Zylinderkerne. Der zugehörige Schlüssel hat derart gestaltete Einschnitte, daß die zumeist aus Gehäusestiften und Kernstiften bestehenden Zuhaltungs­elemente mit Hilfe dieses Schlüssels entgegen der Feder­belastung soweit verschoben werden, daß die Trennstellen zwischen je einem Gehäusestift und einem Kernstift mit der Trennfläche zwischen Zylinderkern und Zylindergehäuse über­einstimmen. Dann kann der Zylinderkern mit dem Schlüssel gedreht werden und der an dem Kern befindliche Schließbart betätigt das zugehörige Schloß entweder im Öffnungs- oder auch Schließsinne.Profile lock cylinders of this type are generally known for security locks, in both so-called half-cylinder and double-cylinder shapes. In the former case, the second housing part is axially very short and its correspondingly short axial bore only serves to better support the locking bar, while in the double cylinder the second housing part is used to accommodate a further cylinder core and is designed in accordance with the former housing part. In both cases, the axial bores in the two housing parts run coaxially with one another and are continuously smooth-walled, just like the cylinder cores stored therein. The associated key has such incisions that the tumbler elements, which usually consist of housing pins and core pins, are shifted against the spring load with the help of this key to such an extent that the separation points between each housing pin and a core pin match the interface between the cylinder core and the cylinder housing. Then the cylinder core can be turned with the key and the lock bit located on the core actuates the associated lock either in the opening or closing direction.

Eine Methode, um das Schloß ohne zugehörigen Schlüs­sel gewaltsam zu öffnen, besteht darin, den Zylinderkern gewaltsam herauszuziehen, wodurch Zugang zum Schließbart geschaffen und damit eine Schloßöffnungsmöglichkeit er­reicht wird. Dieses gewaltsame Herausziehen erfolgt bei­spielsweise mittels eines korkenzieherartigen Schneidor­gans, beispielsweise einer Schraube, die in den Schlüssel­kanal eingeschraubt und dadurch mit dem Zylinderkern so fest verankert wird, daß dieser aus dem Zylindergehäuse herausgezogen werden kann. Bei diesem gewaltsamen Heraus­ziehen werden die sperrenden Zuhaltungsstifte abgeschert. Das kann auch ein der axialen Festlegung des drehbaren Zylinderkerns im Zylindergehäuse dienender Sicherungsring nicht verhindern.One method of forcibly opening the lock without an associated key is to forcibly pull out the cylinder core, thereby creating access to the lock bit and thus opening the lock. This violent pulling out takes place, for example, by means of a corkscrew-like cutting element, for example a screw, which is screwed into the key channel and is thus firmly anchored to the cylinder core in such a way that it can be pulled out of the cylinder housing. During this violent pulling out, the locking tumbler pins are sheared off. This can also be an axial fixation of the rotatable one Do not prevent the circlip serving as the cylinder core in the cylinder housing.

Der Erfindung liegt daher die Aufgabe zugrunde, einen Profilschließzylinder der eingangs genannten Art so zu verbessern, daß ein schlüsseleinsteckseitiges gewaltsames Herausziehen des Zylinderkerns aus seinem Zylindergehäuse­teil nicht möglich ist.The invention is therefore based on the object of improving a profile lock cylinder of the type mentioned at the outset so that a forceful pulling out of the cylinder core from the key insert side of its cylinder housing part is not possible.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß am Zylinderkern schließbartseitig ein unlösbar ange­brachter, das erste Gehäuseteil axial hintergreifender Ringvorsprung vorhanden ist und die im zweiten Gehäuse­teil vorhandene zweite Axialbohrung einen Durchmesser be­sitzt, der mindestens so groß wie der Außendurchmesser dieses Ringvorsprungs ist.This object is achieved in that on the cylinder core on the lockable side there is an undetachably attached ring projection which engages axially behind the first housing part and the second axial bore in the second housing part has a diameter which is at least as large as the outside diameter of this ring projection.

Für die Erfindung ist also von Bedeutung, daß die Sicherung des Zylinderkerns gegen Herausziehen durch einen an ihm schließbartseitig vorhandenen Ringvorsprung erreicht wird. Das wiederum bedingt, daß der zu schützen­de Zylinderkern durch die im zweiten Gehäuseteil vorhan­dene, entsprechend größer zu bemessende zweite Axialboh­rung hindurch in seine im ersten Gehäuseteil gelegene erste, im Durchmesser kleiner bemessene Axialbohrung einge­schoben werden kann. Der am Zylinderkern vorhandene Ring­vorsprung kann in gewünschter Weise massiv ausgeführt wer­den. Da der Zylinderkern mit dem zugehörigen Zylindergehäuse­teil von der Schließbartseite her zusammengebaut wird, kann der Ringvorsprung auch von daher bezüglich seiner Gestal­tung ohne Rücksichtnahme auf den Einbauvorgang voll auf die Sicherheitsbedingungen abgestimmt gestaltet werden. Der Ringvorsprung kann beispielsweise auch aus Hartme­tall bestehen. Im vorgenannten Sinne ist der Rinvorsprung mit dem Zylinderkern einstückig, wobei es sich versteht, daß er auch aus demselben Werkstoff wie der Zylinderkern bestehen kann. Wird der Zylinderkern durch Spritzgießen hergestellt, so kann der Ringvorsprung bei demselben Her­stellungsvorgang mit hergestellt werden, so daß der Her­stellungsaufwand praktisch vernachlässigbar ist.It is therefore important for the invention that the cylinder core is secured against being pulled out by an annular projection provided on it on the closable side. This in turn means that the cylinder core to be protected can be inserted through the second axial bore, which is correspondingly larger in the second housing part, and into its first, smaller in diameter axial bore in the first housing part. The ring projection on the cylinder core can be made solid in the desired manner. Since the cylinder core with the associated cylinder housing part is assembled from the lockable side, the ring projection can therefore be designed with the safety conditions in mind, regardless of the installation process. The ring projection can also consist of hard metal, for example. In the aforementioned sense, the ridge projection is in one piece with the cylinder core, it being understood that that it can also consist of the same material as the cylinder core. If the cylinder core is produced by injection molding, the ring projection can also be produced in the same production process, so that the production outlay is practically negligible.

In Ausgestaltung der Erfindung kann auch am ersten Gehäuseteil schlüsseleinsteckseitig ein den Zylinder­kern stirnseitig teilweise übergreifender Ringvorsprung vorhanden sein. Dieser kann ringsum geschlossen ausge­bildet und der Schlüsselkanal schlüssenrückenseitig von einem Steg ausgefüllt sein, dessen Höhe gleich der Höhe dieses Ringvorsprungs ist. Die ringsum geschlossene Aus­bildung dieses Ringvorsprungs gewährleistet eine zusätz­liche Auszugfestigkeit und bedingt einen schlüsselrücken­seitig geschlossenen Schlüsselkanal, wozu ein Steg im Zy­linderkern dient, mit dem die Gehäusestifte beim Drehen des Zylinderkerns niedergehalten werden. Der Steg ist mit dem Zylinderkern einstückig und im Steg gelegene Stift­bohrungsabschnitte sind vollständig ausgefüllt. Bei die­ser Ausgestaltung des Zylinderkerns kann dieser in ge­wohnter Weise hergestellt werden, und auch die Herstel­lung der Bohrungen für die Stiftzuhaltungen braucht nicht geändert zu werden. Es ist beispielsweise möglich, diese Stiftbohrungen von oben durch das Zylindergehäuse und den Zylinderkern hindurch herzustellen und die nicht mehr be­nötigten Stiftbohrungsabschnitte z.B. zuzulöten.In an embodiment of the invention, an annular projection that partially overlaps the cylinder core on the front side can also be present on the first housing part on the key insertion side. This can be closed all around and the key channel on the back of the key can be filled by a web, the height of which is equal to the height of this ring projection. The all-round closed design of this ring projection ensures additional pull-out resistance and requires a key channel closed on the key back side, for which purpose a web in the cylinder core is used, with which the housing pins are held down when the cylinder core is rotated. The web is in one piece with the cylinder core and pin bore sections located in the web are completely filled. With this configuration of the cylinder core, it can be produced in the usual way, and the production of the holes for the pin tumblers does not need to be changed either. It is possible, for example, to produce these pin holes from above through the cylinder housing and the cylinder core and to remove the pin hole sections that are no longer required, e.g. to solder.

Bei einer anderen Ausführungsform der Erfindung kann der Ringvorsprung am ersten Zylindergehäuseteil zumindest vor dem den Schlüsselrücken aufnehmenden Abschnitt des Schlüsselkanals schlüsselbreit geschlitzt sein und der Schlüssel einen diesen Ringvorsprung beim Drehen des Zy­linderkerns aufnehmenden Schlitz besitzen. Infolge des Schlitzes kann der Schlüsselkanal eine herkömmliche Größe haben und insbesondere oben offen sein, so daß der Schlüs­selrücken beim Drehen des Zylinderkerns der Niederhaltung der Gehäusestifte dient.In another embodiment of the invention, the ring projection on the first cylinder housing part can be slit key width at least in front of the section of the key channel receiving the key back and the key can have a slot receiving this ring projection when the cylinder core rotates. As a result of the slot, the key channel can have a conventional size and in particular be open at the top, so that the back of the key serves to hold down the housing pins when the cylinder core is rotated.

Nach einem weiteren Merkmal der Erfindung kann der Zylinderkern zur Bildung des Ringvorsprungs zumindest auf einem Längenabschnitt einen sich schlüsseleinsteckseitig verjüngenden konischen Außenumfang aufweisen und die im ersten Gehäuseteil gelegene erste Axialbohrung entsprechend konisch gestaltet sein. Die Konizität bzw. die Neigung des Kern-Außenumfangs braucht nur gering zu sein, bei­spielsweise 0,5 Grad. Das reicht aus, damit das Zylinder­gehäuse dem Entfernen des Zylinderkerns mit üblichen gewaltsam angewendeten Mitteln ausreichenden Widerstand entgegensetzen kann. Jedenfalls führen die zum Zerstören üblicher Zuhaltungsstifte oder Sicherungsringe verwende­ten gewaltsamen Mittel nicht zum Ziel. Zylindergehäuse und Zylinderkern sind genügend massiv, um den erforder­lichen Widerstand leisten zu können. Wenn sich die Koni­zität des Zylinderkerns und des Zylindergehäuses über deren gesamte Länge erstreckt, können beide in einfachen Arbeitsgängen die erforderliche Form erhalten. Wenn der Zylinderkern und das Zylindergehäuse im Anfangsbereich des Schlüsselkanals einen zylindrischen Schlüsselgerad­führungsabschnitt bilden, muß für die über die Länge des Zylinderkerns und des zugehörigen Zylindergehäuseteils nur teilweise vorhandene Konusfläche eine entsprechende Fertigung erfolgen, jedoch kann der Schlüsselgeradfüh­rungsabschnitt die horizontale Anordnung des Schlüssel­schafts im Zylinderkern sicherstellen.According to a further feature of the invention, the cylinder core for forming the annular projection can have a conical outer circumference tapering at least on one longitudinal section on the key insert side, and the first axial bore located in the first housing part can be correspondingly conical. The taper or the inclination of the outer circumference of the core need only be slight, for example 0.5 degrees. This is sufficient for the cylinder housing to be able to offer sufficient resistance to the removal of the cylinder core with the usual violent means. In any case, the violent means used to destroy common tumbler pins or circlips do not lead to the goal. The cylinder housing and cylinder core are sufficiently solid to be able to provide the required resistance. If the taper of the cylinder core and the cylinder housing extends over their entire length, both can be given the required shape in simple operations. If the cylinder core and the cylinder housing form a cylindrical key straight guide section in the initial region of the key channel, appropriate production must take place for the conical surface which is only partially present over the length of the cylinder core and the associated cylinder housing part, but the key straight guide section can ensure the horizontal arrangement of the key shaft in the cylinder core.

Die beweglichen Zuhaltungselemente sind im Bereich der von dem Zylinderkern und dem Zylindergehäuseteil ge­bildeten Trennebene in einem den durch die Konizität ge­bildeten Höhenunterschied zwischen Konusanfang und -ende ausgleichenden Maße ballig. Die Balligkeit der beweglichen Zuhaltungselemente gewährleistet, daß letztere, insbesondere die Stifte federbeaufschlagter Stiftzuhaltungen, ungeachtet der Konizität in denselben Dimensionen und in der bewähr­ ten Bauweise auch bei Schließzylindern mit konischem Zy­linderkern verwendet werden können, wie bei den herkömm­lichen Schließzylindern. Auch etwa vorhandene Toleranzen spielen keine Rolle. Vielmehr liegen die infolge der Koni­zität unterschiedlichen Niveaus der Trennebene sämtlich im Bereich der Balligkeit der bewegten Zuhaltungen.The movable tumbler elements are spherical in the area of the parting plane formed by the cylinder core and the cylinder housing part to a degree that compensates for the height difference formed by the conicity between the beginning and end of the cone. The crowning of the movable tumbler elements ensures that the latter, in particular the pins of spring-loaded pin tumblers, regardless of the taper in the same dimensions and in the proven th design can also be used with lock cylinders with a conical cylinder core, as with conventional lock cylinders. Existing tolerances are also irrelevant. Rather, the different levels of the parting plane due to the taper are all in the region of the crown of the moving tumblers.

Eine weitere Möglichkeit, um die Einflußnahme der Konizität bzw. der sich daraus ggfs. ergebenden Ab­weichung der Lage des Schlüsselschafts von der Horizonta­len auf besondere Ausbildungen der Zuhaltungen bzw. der Zuhaltungsstifte zu begrenzen, ist es, die zur Betätigung von Stiftzuhaltungen vorhandenen Einschnitte seines Schlüs­sels von der Schlüsselreide zur Schlüsselspitze in einem Maß flacher zu halten, das durch die Konizität des Zylin­derkerns bestimmt ist. Infolgedessen können die Zuhal­tungsstifte einem ggfs. ausweichenden Schlüsselschaft nicht nachrücken, sondern behalten ihre Lage relativ zu der für sie vorgesehenen Trennebene bei.Another way to limit the influence of the taper or the resulting deviation of the position of the key shaft from the horizontal on special designs of the tumblers or tumbler pins is to cut the incisions in his key that are used to actuate tumbler pins to keep the key bow to the key tip flatter to a degree determined by the taper of the cylinder core. As a result, the tumbler pins cannot move up to a possibly evading key shank, but maintain their position relative to the parting plane provided for them.

Die Erfindung wird anhand mehrerer in der Zeichnung dargestellter Ausführungsbeispiele erläutert. Es zeigen:

  • Fig. 1 einen als Halbzylinder ausgebildeten Profil­schließzylinder einer ersten Ausführungsform in axialem Schnitt,
  • Fig. 2 eine teilweise geschnittene Hälfte eines Dop­pelzylinders einer zweiten Ausführungsform,
  • Fig. 3 einen in den Zylinderkern des Schließzylinders der Fig. 2 passenden Schlüssel,
  • Fig. 4 eine Ansicht in Richtung A der Fig. 2,
  • Fig. 5 einen Profilhalbzylinder mit einem einen ko­nischen Außenumfang aufweisenden Zylinderkern in axialem Schnitt und
  • Fig. 6 eine Ansicht in Richtung B der Fig. 5.
The invention is explained with reference to several exemplary embodiments shown in the drawing. Show it:
  • 1 is a half-cylinder profile lock cylinder of a first embodiment in axial section,
  • 2 is a partially sectioned half of a double cylinder of a second embodiment,
  • 3 shows a key that fits into the cylinder core of the locking cylinder of FIG. 2,
  • 4 is a view in the direction A of FIG. 2,
  • Fig. 5 shows a profile half cylinder with a conical outer circumference having a cylinder core in axial section and
  • 6 is a view in direction B of FIG .. 5

Der in Fig. 1 dargestellte Schließzylinder 10 ist ein Halbzylinder etwa des Profils der Fig. 4. Der Schließ­zylinder 10 besitzt ein Zylindergehäuse 11, das aus einem ersten Gehäuseteil 11′ und einem zweiten Gehäuseteil 11˝ besteht, die über den Verbindungssteg 11‴ miteinander ver­bunden sind. Im ersten Gehäuseteil 1′ sind eine erste Axial­bohrung 27 und ein darin axial unverschieblich lagernder Zylinderkern 12 enthalten. Im Verbindungssteg 11‴ ist eine Gewindebohrung 13 für den Eingriff einer Befestigungsschraube vorhanden, mit der der Schließzylinder 10 in einem Schloßge­häuse festgelegt ist. Der Lagerung des Schließbarts 15 dienen beidseitig des Schließbarts 15 vorhandene Lagerringe 16, sowie auch die zweite Axialbohrung 33 im Schenkel 32 des zweiten Gehäuseteils 11˝. Die Lagerung des Schließbarts 15, seine Ausbildung und sein Zusammenbau mit dem Zylinder­kern 12 sind herkömmlich und infolgedessen nicht näher dargestellt.The locking cylinder 10 shown in Fig. 1 is a half cylinder approximately of the profile of Fig. 4. The locking cylinder 10 has a cylinder housing 11, which consists of a first housing part 11 'and a second housing part 11', which are connected to each other via the connecting web 11 ' are. In the first housing part 1 ', a first axial bore 27 and an axially immovably mounted cylinder core 12 are contained therein. In the connecting web 11 ‴ there is a threaded bore 13 for the engagement of a fastening screw with which the locking cylinder 10 is fixed in a lock housing. The bearing of the locking bar 15 serves on both sides of the locking bar 15 existing bearing rings 16, and also the second axial bore 33 in the leg 32 of the second housing part 11˝. The storage of the locking bar 15, its design and its assembly with the cylinder core 12 are conventional and are therefore not shown in detail.

Das Zylindergehäuseteil 11′ weist eine Mehrzahl neben­einander in einer Reihe angeordneter Stiftbohrungen 17 auf, die jeweils eine Feder 18 aufnehmen, die sich mit einem Ende am Bohrungsboden 19 und mit dem anderen Ende an einem Gehäusestift 20 abstützt. Der Gehäusestift 20 überträgt die Kraft der Feder 18 auf einen Kernstift 21, der in einen Schlüsselkanal 22 des Zylinderkerns 12 hineinragt.The cylinder housing part 11 'has a plurality of side by side arranged in a row pin holes 17, each receiving a spring 18, which is supported at one end on the bore bottom 19 and the other end on a housing pin 20. The housing pin 20 transmits the force of the spring 18 to a core pin 21, which projects into a key channel 22 of the cylinder core 12.

Der Schlüsselkanal 22 nimmt den Schlüsselschaft 23 des Schlüssels 24 auf, so daß dessen Schlüsseleinschnitte 25 in eine vorbestimmte Stellung zu den Kernstiften 21 ge­langen. Da die Kernstifte 21 unterschiedlich lang ausgebil­det sind und die Tiefe der Schlüsseleinschnitte 25 speziell auf die unterschiedliche Länge der Kernstifte 21 abge­stimmt ist, werden diese vom Schlüsselschaft 23 bzw. von dessen Schlüsseleinschnitten 25 schlüsselseitig in der aus Fig. 1 ersichtlichen Weise unterschiedlich hoch gehalten, jedoch so, daß die Kernstifte 21 gehäusestift­ seitig axial gleichweit vorspringen und insbesondere mit dem Außenumfang des Zylinderkerns 12 abschließen. In­folgedessen schließen auch die kernstiftseitigen Enden 26 der Gehäusestifte 20 mit dem Innenumfang der den Zylinder­kern 12 drehbeweglich lagernden Bohrung 27 des Zylinder­gehäuses 11 ab, so daß der Zylinderkern 12 mit Hilfe des Schlüssels 24 gedreht werden kann, was infolge seiner drehfesten Verbindung mit dem Schließbart 15 zu dessen Drehung und damit zu einer Schloßbetätigung führt.The key channel 22 receives the key shaft 23 of the key 24, so that its key incisions 25 reach the core pins 21 in a predetermined position. Since the core pins 21 are of different lengths and the depth of the key incisions 25 is specifically matched to the different length of the core pins 21, these are held at different heights by the key shaft 23 or by the key incisions 25 on the key side in the manner shown in FIG. 1, however so that the core pins 21 housing pin project axially equidistantly and in particular seal off with the outer circumference of the cylinder core 12. As a result, the core pin-side ends 26 of the housing pins 20 also terminate with the inner circumference of the bore 27 of the cylinder housing 11 which rotatably supports the cylinder core 12, so that the cylinder core 12 can be rotated by means of the key 24, which due to its rotationally fixed connection to the lock bit 15 increases whose rotation and thus leads to a lock actuation.

Damit der Schlüssel 24 genau in die in Fig. 1 darge­stellte Lage in den Schlüsselkanal 22 hineingesteckt werden kann, hat der Schlüssel 24 einen Einsteckanschlag 28 und der Querschnitt des Schlüssels 24 weist Schlüsselkerben 29 auf, so daß nur ein Schlüssel 24 mit einem durch die Ker­ben 29 bedingten Schaftprofil in den Schlüsselkanal 22 gesteckt werden kann. Das Profil des Schlüsselkanals 22 ist beispielsweise ähnlich dem des Kanals 22 der Fig. 4.So that the key 24 can be inserted exactly into the position shown in FIG. 1 in the key channel 22, the key 24 has an insertion stop 28 and the cross section of the key 24 has key notches 29, so that only one key 24 with one through the notches 29 conditional shaft profile can be inserted into the key channel 22. The profile of the key channel 22 is, for example, similar to that of the channel 22 in FIG. 4.

Schlüsseleinsteckseitig hat das Zylindergehäuseteil 11′ einen Ringvorsprung 30, der ein Widerlager für den Einsteckanschlag 28 des Schlüssels 24 bildet und überdies verhindert, daß der Zylinderkern 12 entgegen der Einsteck­richtung des Schlüssels 24 gewaltsam herausgezogen werden kann. Der Ringvorsprung 30 verkleinert also den Durch­messer der Bohrung 27 des Zylindergehäuses 11. Infolge­dessen muß der Zylinderkern 12 schließbartseitig in diese Bohrung 27 eingebaut werden, also in Fig. 1 von rechts nach links durch die im zweiten, axial kurz ge­haltenen Gehäuseteil 11˝ vorhandene Axialbohrung 33 hindurch.On the key insertion side, the cylinder housing part 11 'has an annular projection 30 which forms an abutment for the insertion stop 28 of the key 24 and, moreover, prevents the cylinder core 12 from being pulled out against the direction of insertion of the key 24. The ring projection 30 thus reduces the diameter of the bore 27 of the cylinder housing 11. As a result, the cylinder core 12 must be installed in this bore 27 on the lockable side, that is to say in FIG. 1 from right to left through the axial bore 33 present in the second, axially short housing part 11 through it.

Infolge des Ringvorsprungs 30 ist der Rücken 35 des Schlüssels 24 nicht ganz so hoch, wie bei einem Schlüssel eines ringvorsprunglosen Schließzylinders. Infolgedessen ist der Schlüsselkanal 22 nicht vollständig durch den Schlüsselrücken 35 ausgefüllt, der infolgedessen auch nicht dafür sorgen kann, daß die Gehäusestifte 20 vom Schlüssel 24 bei dessen entsprechender Drehstellung nieder­gehalten werden. Infolgedessen ist der Schlüsselkanal 22 schlüsselrückenseitig von einem Steg 34 ausgefüllt, der den Schlüsselschaft 23 am Schlüsselrücken 35 führt. Außerdem dient der Steg 34 dazu, bei entsprechender Dreh­stellung des Schlüssels 24 die Gehäusestifte 20 nieder­zuhalten. Der Steg 34 wird mit dem Zylinderkern 12 ein­stückig hergestellt.As a result of the ring projection 30, the back 35 of the key 24 is not quite as high as in the case of a key of a locking cylinder without a ring projection. As a result, the key channel 22 is not completely through the Key back 35 filled, which consequently can not ensure that the housing pins 20 are held down by the key 24 at its corresponding rotational position. As a result, the key channel 22 is filled on the key back side by a web 34 which guides the key shaft 23 on the key back 35. In addition, the web 34 serves to hold down the housing pins 20 when the key 24 is in a corresponding rotational position. The web 34 is produced in one piece with the cylinder core 12.

Die größtmögliche Sicherheit gegen gewaltsames Herausziehen des Zylinderkerns 12 bietet aber der schließ­bartseitig an ihm vorhandene Ringvorsprung 31, mit dem der Zylinderkern in eine entsprechende, nicht näher be­zeichnete Ringnut des Zylindergehäuseteils 11′ eingreift, so daß er die gewünschte Lage einnimmt, in der seine Kernstifte 21 mit den Gehäusestiften 20 fluchten. Dieser Ringvorsprung 31 kann im Gegensatz zum außenliegenden Ringvorsprung 30 am Gehäuseteil 11′ durch Unbefugte nicht erreicht und damit auch nicht etwa von außen auf­gebohrt werden. Sein Einsatz erfordert, daß die im zwei­ten Gehäuseteil 11˝ bzw. im Schenkel 32 vorhandene Axial­bohrung 33 einen Durchmesser aufweist, der mindestens gleich dem Außendurchmesser des Ringvorsprungs 31 ist, um den Zylinderkern 12 mit dem Ringvorsprung 31 durchstecken zu können. Eine derartig bemessene Bohrung 33 ist bei dem in Fig. 1 dargestellten Profil-Halbzylinder unproblema­tisch. Bei einem Profil-Doppelzylinder kommt hinzu, daß dann auch der darin einzubauende zweite Zylinderkern einen entsprechend größeren Durchmesser besitzen muß.The greatest possible security against violent pulling out of the cylinder core 12, however, is provided by the ring projection 31 on the closable side thereof, with which the cylinder core engages in a corresponding, not specified annular groove of the cylinder housing part 11 ', so that it assumes the desired position in which its core pins 21 align with the housing pins 20. In contrast to the external annular projection 30 on the housing part 11 ', this annular projection 31 cannot be reached by unauthorized persons and therefore cannot be drilled out from the outside. Its use requires that the axial bore 33 in the second housing part 11 'or in the leg 32 has a diameter which is at least equal to the outer diameter of the ring projection 31 in order to be able to insert the cylinder core 12 with the ring projection 31. Such a dimensioned bore 33 is unproblematic in the profile half cylinder shown in FIG. 1. In the case of a profile double cylinder, the second cylinder core to be installed must also have a correspondingly larger diameter.

Die Stiftbohrungen 17 sind lediglich zu einem Teil durch eine Feder 17, einen Gehäusestift 20 und einen Kern­stift 21 belegt. Sie werden hergestellt, indem beispiels­ weise in Richtung b durch das Zylindergehäuseteil 11′ und den Zylinderkern 12 hindurchgebohrt wird. Die dabei entstehenden Bohrungsabschnitte 36 im Zylindergehäuseteil 11′ und 37 im Zylinderkern 12 oberhalb des Schlüsselrückens 35 müssen geschlossen werden, damit die Kernstifte 21 beim Drehen des Kerns 12 nicht in offene Bohrungsabschnitte 36 des Zylindergehäuses 11 bzw. damit die Gehäusestifte 20 nicht in offene Bohrungsabschnitte 37 des Zylinderkerns 12 gelangen und dessen Weiterdrehen verhindern. Dieses Aus­füllen der betreffenden Bohrungsabschnitte 36, 37 er­folgt beispielsweise durch Zulöten.The pin bores 17 are only partially occupied by a spring 17, a housing pin 20 and a core pin 21. They are made by example as in direction b is drilled through the cylinder housing part 11 'and the cylinder core 12. The resulting bore sections 36 in the cylinder housing part 11 'and 37 in the cylinder core 12 above the key back 35 must be closed so that the core pins 21 are not in open bore sections 36 of the cylinder housing 11 when the core 12 is rotated, and thus the housing pins 20 are not in open bore sections 37 of the cylinder core 12 and prevent its further turning. This filling of the relevant bore sections 36, 37 takes place, for example, by soldering.

Der in den Fig. 2 bis 4 zur Hälfte dargestellte Doppelzylinder besteht im wesentlichen aus denselben Bauteilen wie der Halbzylinder der Fig. 1. Wesentlich ist hier jedoch, daß der schlüsseleinsteckseitige Ringvor­sprung 30 einen Schlitz 38 hat, so daß der Schlüsselrücken 23 eine übliche Höhe hat und durch den Ringvorsprung 30 ungehindert in den Schlüsselkanal 22 eingesteckt werden kann. Da der Schlüssel 24 von der Einsteckstellung aus­gehend jedoch nicht gedreht werden könnte, weil der Ring­vorsprung 30 dies verhindern würde, ist der Schlüssel 24 mit einem Schlitz 39 versehen, dessen Tiefe und Breite auf die Höhe und Breite des Ringvorsprungs 30 abgestimmt sind.The half cylinder shown in FIGS. 2 to 4 consists essentially of the same components as the half cylinder of FIG. 1. It is essential here, however, that the ring projection 30 on the key insertion side has a slot 38, so that the key back 23 has a customary height and can be inserted unhindered into the key channel 22 by the ring projection 30. However, since the key 24 could not be rotated from the inserted position because the ring projection 30 would prevent this, the key 24 is provided with a slot 39, the depth and width of which are matched to the height and width of the ring projection 30.

Der in den Fig. 5 und 6 dargestellte Profilschließ­zylinder 10 stimmt weitgehend mit dem vorbeschriebenen Profilschließzylinder überein. Die übereinstimmenden Bauteile sind durchweg mit den gleichen Bezeichnungen und Bezugszeichen versehen. Wesentlich anders ist aber, daß der Zylinderkern 12 hier zur Bildung des axial sichern­den Ringvorsprungs konisch ausgebildet ist, und zwar über seinen Längenabschnitt 1. Die auf diesem Längenabschnitt 1 gegebene Konizität wird durch die Differenz zwischen dem hinteren, größten Durchmesser h und dem vorderen, kleinsten Durchmesser d des Zylinderkers 12 bei geradlinigem Verlauf der Mantellinien über den gesamten konischen Außenumfang 41 des Zylinderkerns 12 bestimmt. Die Konizität ist nur ge­ring, beispielsweise haben die Mantellinien eine Neigung von ca. 0,5 Grad gegen die Horizontale bzw. gegen die Zylinderkernachse 43. Diese geringe Neigung reicht aus, damit der Zylinderkern 12 nicht gewaltsam axial, in Fig. 5 nach links, aus dem Zylindergehäuseteil 11′ herausgezogen werden kann.The profile lock cylinder 10 shown in FIGS. 5 and 6 largely coincides with the profile lock cylinder described above. The corresponding components are all given the same names and reference numerals. It is significantly different, however, that the cylinder core 12 is conical here to form the axially securing ring projection, namely over its length section 1. The conicity given on this length section 1 is determined by the difference between the rear, largest diameter h and the front, smallest Diameter d of the cylinder core 12 in a straight line of the surface lines over the entire conical outer circumference 41 of the cylinder core 12. The taper is only slight, for example the surface lines have an inclination of approximately 0.5 degrees relative to the horizontal or against the cylinder core axis 43. This slight inclination is sufficient so that the cylinder core 12 is not forced axially, to the left in FIG. 5, can be pulled out of the cylinder housing part 11 '.

Überlicherweise ist der Schlüssel 24 im Schlüssel­kanal 22 so gehalten, daß er die in Fig. 5 dargestellte Lage beibehält. Es ist jedoch auch möglich, daß der Schlüssel 24 diese Lage nicht oder nicht in gewünschten Maße beibehält, also unter dem Druck der Zuhaltungsfedern 18 oder infolge Schiefeinsteckens nach oben in den zwischen dem Schlüsselrücken 35 und dem Zylindergehäuse 11 freien Bereich 44 des Schlüsselkanals 22 ausweicht. Das ist im Fall größerer Schlüsseltoleranzen möglich, oder wenn der Schlüssel nicht genügend oder keine Längskerben 29 hat. Derartige Ausbildungen kommen - abweichend von der Dar­stellung in Fig. 5 - beispielsweise auch bei mit Magnet­zuhaltungen versehenen Schließzylindern infrage. In solchen Fällen können problemlos Maßnahmen getroffen werden, um ein Ausweichen des Schlüsselschafts 23 in den freien Bereich 44 des Schlüsselkanals 22 oberhalb des Schlüsselrückens 35 zu verhindern. Eine Maßnahme ist der in Fig. 5 dargestellte Schlüsselgeradführungsabschnitt 40, der über die Länge s des Zylindergehäuseteils 11′ und des Zylinderkerns 12 von beiden im Bereich des Schlüsselkanals 22 gebildet ist. Dieser Schlüsselgeradführungsabschnitt 40 setzt einen sich über die Länge s erstreckenden zylin­drischen Abschnitt des Zylinderkerns 12 voraus. Ein solcher, vergleichsweise kurzer Längenabschnitt des Zy­linderkerns 12 reicht aus, um den Schlüsselschaft 23 genügend gerade bzw. horizontal zu halten. Ebenso gut könnte der Schlüsselkanal 22 rückseitig auch zumindest teilweise geschlossen sein, beispielsweise durch einen den Kanal 22 außerhalb der eigentlichen Schlüsselführung querenden Stift, an dem der etwa schiefliegend einfahrende Schlüssel mit seiner abgeschrägten Schlüsselspitze auf­gleitet und dadurch in seine achsparallel ausgerichtete Lage gelangt sowie darin gehalten wird.The key 24 is usually held in the key channel 22 in such a way that it maintains the position shown in FIG. However, it is also possible that the key 24 does not maintain this position or does not maintain it to the desired extent, that is to say under the pressure of the tumbler springs 18 or as a result of slanted insertion upwards into the free area 44 of the key channel 22 between the key back 35 and the cylinder housing 11. This is possible in the case of larger key tolerances, or if the key does not have enough or no longitudinal notches 29. In contrast to the illustration in FIG. 5, such designs are also suitable, for example, in the case of locking cylinders provided with magnetic locks. In such cases, measures can easily be taken to prevent the key shaft 23 from escaping into the free area 44 of the key channel 22 above the key spine 35. One measure is the key straight guide section 40 shown in FIG. 5, which is formed over the length s of the cylinder housing part 11 'and the cylinder core 12 by both in the area of the key channel 22. This key straight guide section 40 requires a cylindrical section of the cylinder core 12 which extends over the length s. Such a comparatively short length section of the cylinder core 12 is sufficient to hold the key shaft 23 to keep it sufficiently straight or horizontal. The key channel 22 could just as well be at least partially closed on the back, for example by a pin crossing the channel 22 outside the actual key guide, on which the key, which is entering at an incline, slides with its beveled key tip and thereby reaches and is held in its axially parallel position .

Eine weitere Maßnahme ist es, die in Fig. 5 darge­stellten Gehäusestifte 20 und Kernstifte 21 an ihren einander zugewandten Abstützflächen in der dargestellten Weise ballig auszubilden. Die Balligkeit wird so bemessen, daß die durch die Konizität gebildeten Höhenunterschiede bzw. die Differenz zwischen h und d zwischen Konusanfang und Konusende beim Schließen keine Rolle spielen, weil die höhenmäßig etwas versetzten Trennflächenabschnitte des Zylinderkerns 12 auf ballige und infolgedessen aus­weichende Stiftenden treffen, so daß der Schlüssel 24 und damit der Zylinderkern 12 gedreht werden kann.Another measure is to form the housing pins 20 and core pins 21 shown in FIG. 5 on their mutually facing support surfaces in the manner shown. The crowning is dimensioned such that the height differences formed by the taper or the difference between h and d between the beginning and end of the cone are irrelevant when closing, because the separating surface sections of the cylinder core 12, which are somewhat offset in height, meet crowned and consequently evasive pin ends, so that the key 24 and thus the cylinder core 12 can be rotated.

Des weiteren ist es möglich, wenn man davon ausgeht, daß der Schlüssel 24 beispielsweise durch die Federn 18 nach oben gedrückt werden kann, die Schlüsseleinschnitte 25 weniger tief auszubilden, so daß die Einschnitte 25 bei­spielsweise die gepunktete Lage haben, wenn der Schlüssel 24 horizontal ist, aber die mit ausgezogenen Strichen dar­gestellte Lage der Schlüsseleinschnitte 25 einnehmen, wenn der Schlüsselrücken 35 nach oben ausgewichen ist. Infolgedessen haben die Zuhaltungsstifte 20, 21 dann exakt die in Fig. 5 dargestellte Lage im Bereich der Bohrung 27 bzw. der Trennebene.Furthermore, if it is assumed that the key 24 can be pushed upwards, for example by the springs 18, it is possible to make the key incisions 25 less deep, so that the incisions 25 have the dotted position, for example, when the key 24 is horizontal , but assume the position of the key incisions 25 shown in solid lines when the key spine 35 has dodged upwards. As a result, the tumbler pins 20, 21 then have exactly the position shown in FIG. 5 in the region of the bore 27 or the parting plane.

Üblicherweise werden jedoch derartige Maßnahmen an den Schlüsseleinschnitten 25 im Bereich des Schlüssels von der Schlüsselreide bis zur Schlüsselspitze nicht erforderlich sein, weil die Konizität des Zylinderkerns 12 nur sehr gering ist.However, such measures are usually not carried out on the key incisions 25 in the area of the key from the key cord to the key tip be necessary because the taper of the cylinder core 12 is only very low.

Auch die Konizität des Zylinderkerns 12 hat zur Voraussetzung, daß der Zylinderkern 12 hier von der Schließbartseite her, also durch die in der zweiten Ge­häusehälfte 11˝ bzw. im Gehäuseschenkel 32 vorhandene Bohrung 33 hindurch, in die Bohrung 27 des Zylinderge­häuseteils 11′ eingebaut werden muß. Die türinnenseitige Bohrung 33 auch bei einem Profil-Doppelzylindergehäuse ist somit etwas größer als der größte Durchmesser h am Konusende, um den Zylinderkern 12 durchstecken zu können.The taper of the cylinder core 12 has the prerequisite that the cylinder core 12 here from the lockable side, ie through the existing in the second housing half 11˝ or in the housing leg 32 through hole 33, must be installed in the bore 27 of the cylinder housing part 11 ' . The bore 33 on the inside of the door, even in the case of a profile double cylinder housing, is thus somewhat larger than the largest diameter h at the end of the cone, in order to be able to insert the cylinder core 12.

Claims (11)

1. Profilschließzylinder mit einem Zylindergehäuse (11), das aus einem eine erste Axialbohrung (27) und einen darin axial unverschieblich lagernden Zylinder­kern (12) sowie teilweise auch federbelastete Zu­haltungselemente (18, 20) enthaltenden ersten Ge­häuseteil (11′) und einem damit über einen einen Ein­schnitt (14) für den durch den Zylinderkern (12) ver­drehbaren Schließbart (15) neben sich freilassenden Verbindungssteg (11‴) einstückig verbundenen zweiten Gehäuseteil (11˝) mit einer darin gelegenen zweiten, koaxial zur ersten verlaufenden Axialbohrung (33) be­steht, wobei der Zylinderkern (12) einen in Längsrich­tung verlaufenden Schlüsselkanal (22) zur Aufnahme eines mit Einschnitten (25) versehenen Schlüssels (24) sowie weitere Zuhaltungselemente (21) enthält, die zusammen mit den im ersten Gehäuseteil (11′) unterge­brachten Zuhaltungselementen (18, 20) in eine die Drehbeweglichkeit des Zylinderkerns (12) ermöglichende Freigabestellung zu bewegen sind, dadurch gekennzeichnet, daß am Zylinderkern (12) schließbartseitig ein unlösbar angebrachter, das erste Gehäuseteil (11′) axial hintergreifender Ringvorsprung (31) vorhanden ist und die im zweiten Gehäuseteil (11˝) vorhandene zweite Axialbohrung (33) einen Durchmesser besitzt, der mindestens so groß wie der Außendurchmesser dieses Ringvorsprungs (31) ist.1. Profile lock cylinder with a cylinder housing (11), the first housing part (11 ') containing a first axial bore (27) and a cylinder core (12) axially immovably mounted therein, as well as partially spring-loaded tumbler elements (18, 20) and thus a There is an incision (14) for the locking bar (15) which can be rotated by the cylinder core (12) next to the connecting web (11 ‴) that is left in one piece and has a second housing part (11˝) connected therein with a second axial bore (33) running coaxially to the first one The cylinder core (12) contains a key channel (22) running in the longitudinal direction for receiving a key (24) provided with incisions (25) as well as further tumbler elements (21) which together with the tumbler elements (11 ') accommodated in the first housing part (11'). 18, 20) are to be moved into a release position which enables the rotational movement of the cylinder core (12), characterized in that on the Z ylinderkern (12) on the closable side an undetachably attached, the first housing part (11 ') axially engaging behind the ring projection (31) is present and the existing in the second housing part (11˝) second axial bore (33) has a diameter which is at least as large as the outer diameter this ring projection (31). 2. Profilschließzylinder nach Anspruch 1, dadurch gekennzeichnet, daß der Ringvorsprung (31) mit dem Zylinderkern (12) einstückig ist.2. Profile lock cylinder according to claim 1, characterized in that the annular projection (31) with the cylinder core (12) is in one piece. 3. Profilschließzylinder nach Anspruch 1 oder 2, da­durch gekennzeichnet, daß am ersten Gehäuseteil (11′) schlüsseleinsteckseitig ein den Zylinderkern (12) stirnseitig teilweise übergreifender Ringvorsprung (30) vorhanden ist.3. Profile lock cylinder according to claim 1 or 2, characterized in that on the first housing part (11 ') key insertion a the cylinder core (12) on the end face partially overlapping ring projection (30) is present. 4. Profilschließzylinder nach Anspruch 3, dadurch gekennzeichnet, daß der am ersten Gehäuse­teil (11′) schlüsseleinsteckseitig vorhandene Ringvor­sprung (30) ringsum geschlossen ausgebildet und der Schlüsselkanal (22) schlüsselrückenseitig von einem Steg (34) ausgefüllt ist, dessen Höhe gleich der Höhe des Ringvorsprungs (30) ist.4. Profile lock cylinder according to claim 3, characterized in that the present on the first housing part (11 ') key insert existing ring projection (30) closed all around and the key channel (22) is filled on the key back side by a web (34) whose height is equal to the height of the Ring projection (30) is. 5. Profilschließzylinder nach Anspruch 4, dadurch gekennzeichnet, daß der Steg (34) mit dem Zylinderkern (12) einstückig ist und im Steg (34) ge­legene Abschnitte für die Zuhaltungsstiftbohrungen vollständig ausgefüllt sind.5. Profile lock cylinder according to claim 4, characterized in that the web (34) with the cylinder core (12) is in one piece and in the web (34) located sections for the tumbler pin holes are completely filled. 6. Profilschließzylinder nach Anspruch 3, dadurch gekennzeichnet, daß der am ersten Gehäuse­teil (11′) schlüsseleinsteckseitig vorhandene Ringvor­sprung (30) vor dem den Schlüsselrücken (35) aufnehmenden Abschnitt des Schlüsselkanals (22) schlüsselbreit geschlitzt ist und der Schlüssel (24) einen den Ring­vorsprung (30) beim Drehen des Zylinderkerns (12) aufnehmenden Schlitz (39) besitzt.6. Profile lock cylinder according to claim 3, characterized in that the existing on the first housing part (11 ') key insertion ring projection (30) in front of the key back (35) receiving portion of the key channel (22) is slit key width and the key (24) one Has ring projection (30) when turning the cylinder core (12) receiving slot (39). 7. Profilschließzylinder nach Anspruch 1, dadurch gekennzeichnet, daß der Zylinderkern (12) zur Bildung des Ringvorsprungs zumindest auf einem Längenabschnitt (1) einen sich schlüsseleinsteckseitig verjüngenden konischen Außenumfang (41) aufweist und die im ersten Gehäuseteil (11′) gelegene erste Axial­bohrung (27) entsprechend konisch gestaltet ist (Fig. 5, 6).7. Profile lock cylinder according to claim 1, characterized in that the cylinder core (12) to form the annular projection at least on a length section (1) has a tapered conical outer circumference (41) and the first axial part (11 ') located in the first housing part (11') 27) is correspondingly conical (Fig. 5, 6). 8. Profilschließzylinder nach Anspruch 7, dadurch gekennzeichnet, daß sich die Konizität des Zylinderkerns (12) und die der im ersten Gehäuse­teil (11′) gelegenen ersten Axialbohrung (27) über deren gesamte Länge erstreckt.8. Profile lock cylinder according to claim 7, characterized in that the taper of the cylinder core (12) and that in the first housing part (11 ') located first axial bore (27) extends over its entire length. 9. Profilschließzylinder nach Anspruch 7, dadurch gekennzeichnet, daß der Zylinderkern (12) und das erste Gehäuseteil (11′) im Anfangsbereich des Schlüsselkanals (22) einen zylindrischen Schlüssel­geradführungsabschnitt (40) bilden.9. Profile lock cylinder according to claim 7, characterized in that the cylinder core (12) and the first housing part (11 ') form a cylindrical key straight guide section (40) in the initial region of the key channel (22). 10. Profilschließzylinder nach einem der Anprüche 7 bis 9, dadurch gekennzeichnet, daß die beweglichen Zuhaltungselemente im Bereich der von dem Zylinderkern (12) und dem ersten Gehäuseteil (11′) gebildeten Trennebene in einem den durch die Konizität gebildeten Höhenunterschied zwischen Konusanfang und -ende ausgleichenden Maße ballig sind.10. Profile lock cylinder according to one of claims 7 to 9, characterized in that the movable tumbler elements in the region of the separating plane formed by the cylinder core (12) and the first housing part (11 ') in a the height difference formed by the conicity between the beginning and end of the cone balancing dimensions are spherical. 11. Profilschließzylinder nach einem der Ansprüche 7 bis 10, dadurch gekennzeichnet, daß die im Schlüssel (24) vorhandenen Einschnitte (25) von der Schlüsselreide zur Schlüsselspitze in einem durch die Konizität bestimmten Maße weniger tief gehalten sind.11. Profile lock cylinder according to one of claims 7 to 10, characterized in that the incisions (25) present in the key (24) from the key to the key tip are kept less deep to a degree determined by the conicity.
EP88106976A 1987-05-07 1988-04-30 Profile locking cylinder Expired - Lifetime EP0296337B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88106976T ATE64170T1 (en) 1987-05-07 1988-04-30 PROFILE LOCKING CYLINDER.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE8706551U DE8706551U1 (en) 1987-05-07 1987-05-07 Lock cylinder
DE8706551U 1987-05-07
DE8708506U DE8708506U1 (en) 1987-06-19 1987-06-19 Lock cylinder
DE8708506U 1987-06-19

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP90114305A Division EP0410437B1 (en) 1987-05-07 1988-04-30 Profil locking cylinder
EP90114305A Division-Into EP0410437B1 (en) 1987-05-07 1988-04-30 Profil locking cylinder

Publications (2)

Publication Number Publication Date
EP0296337A1 true EP0296337A1 (en) 1988-12-28
EP0296337B1 EP0296337B1 (en) 1991-06-05

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ID=25951741

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EP88106976A Expired - Lifetime EP0296337B1 (en) 1987-05-07 1988-04-30 Profile locking cylinder
EP90114305A Expired - Lifetime EP0410437B1 (en) 1987-05-07 1988-04-30 Profil locking cylinder

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Application Number Title Priority Date Filing Date
EP90114305A Expired - Lifetime EP0410437B1 (en) 1987-05-07 1988-04-30 Profil locking cylinder

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EP (2) EP0296337B1 (en)
DE (2) DE3863132D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7614268B2 (en) 2003-06-16 2009-11-10 Camware Holdings Pty Ltd. Rotary lock and key

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4109968C2 (en) * 1991-03-22 2001-11-15 Lehmann Gmbh & Co Kg Martin Pin cylinder for furniture locks

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2219682A6 (en) * 1973-02-28 1974-09-20 Neiman Exploitation Brevets
EP0053095B1 (en) * 1980-11-26 1984-09-12 R. Berchtold Ag Emergency key device in a double cylinder lock
DE3502860A1 (en) * 1984-03-26 1985-10-03 Lothar Laflör GmbH & Co, 5620 Velbert Profiled lock cylinder, especially for fire-retardant doors

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT337036B (en) * 1975-07-28 1977-06-10 Grundmann Rohrbacher Schlosser LOCK
AT355948B (en) * 1978-11-09 1980-03-25 Evva Werke LOCKING SYSTEM, ESPECIALLY FOR DOUBLE CYLINDLE LOCKS

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2219682A6 (en) * 1973-02-28 1974-09-20 Neiman Exploitation Brevets
EP0053095B1 (en) * 1980-11-26 1984-09-12 R. Berchtold Ag Emergency key device in a double cylinder lock
DE3502860A1 (en) * 1984-03-26 1985-10-03 Lothar Laflör GmbH & Co, 5620 Velbert Profiled lock cylinder, especially for fire-retardant doors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7614268B2 (en) 2003-06-16 2009-11-10 Camware Holdings Pty Ltd. Rotary lock and key

Also Published As

Publication number Publication date
EP0410437A1 (en) 1991-01-30
EP0410437B1 (en) 1993-10-20
DE3863132D1 (en) 1991-07-11
DE3885109D1 (en) 1993-11-25
EP0296337B1 (en) 1991-06-05

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