EP3805491A1 - Locking cylinder - Google Patents

Abstract

The subject matter of the present invention relates to a scanning element (180) for a lock core (130) of a lock cylinder (100) for scanning the presence of an undercut profile rib (15a) of a key (10) inserted into a lock channel (150) of the lock core (130), comprising a base body (182) which has an inner side (189) which, when used in a lock core (130), points in the direction of the locking channel (150), and an outer side (185) which, when used in a lock core (130) is designed for contacting a housing pin (23) and / or a cylinder wall (112) of a cylinder bore (120) of a surrounding cylinder housing (110), with at least one tactile projection (182) protruding from the inside (189), which for contacting a key section of a in the locking channel (150) inserted key (10) is provided, wherein the outside (185) of the base body (182) is at least partially rounded and / or at least z white has different inclined slopes (187). The invention also relates to a lock core (130), a scanning mechanism, a lock cylinder (100), a key (10), a locking system and a method for this.

Description

The invention relates to a scanning element for a lock core of a lock cylinder for scanning the presence of at least one (sufficiently) undercut profile rib of a key inserted into a lock channel of the lock core according to the preamble of claim 1.

The invention also relates to a lock core for a lock cylinder according to claim 4.

The invention also relates to a scanning mechanism for a lock cylinder according to claim 6.

The invention further relates to a lock cylinder comprising a cylinder housing which has a lock core bore in which a lock core is rotatably received, according to claim 8.

The invention also relates to a key according to claim 10.

The invention also relates to a locking system according to claim 11.

Last but not least, the invention relates to a method for scanning an undercut profile rib of a key inserted into a lock channel of a lock core, according to claim 14.

Lock cores, lock cylinders and keys, including those with an undercut profile rib, are generally known from the prior art.

For example, from the DE 10 2010 017 166 A1 and the parallel EP 2390030 a method for profiling a flat key and a flat key manufactured according to the method are known. In the process, a key blank is clamped in a clamping device in such a way that the broad sides of a flat key are exposed. Guide grooves and various grooves are milled in the longitudinal direction in the broad sides of the flat key by milling cutters, the milling cutters being rotated around a milling cutter shaft. A milling shaft axis is inclined by a tilt angle to a longitudinal plane of the key blank. Undercut guide groove walls are formed by ribs the cutting teeth of the milling cutters.

It is an object of the present invention to provide a scanning element, a lock core, a scanning mechanism, a lock cylinder, a key, a locking system and a method in which a scanning function is implemented or with which it can be recognized whether a key is sufficient Has undercut profile rib and possibly blocks a locking function if an unauthorized key is used.

These and other objects are achieved by a scanning element according to claim 1, a lock core according to claim 4, a scanning mechanism according to claim 6, a lock cylinder according to claim 8, a key according to claim 10, a locking system according to claim 11 and a method according to claim 14.

Advantageous developments of the invention are specified in the dependent claims or are specified below in connection with the description of the figures.

The invention includes the technical teaching that in a scanning element for a lock core of a lock cylinder for scanning the presence of a sufficiently undercut profile rib of a key inserted into a lock channel of the lock core, comprising a base body which has an inside which, when used in a lock core, in Direction of the locking channel, and has an outer side which, when used in a lock core, is designed to contact a locking pin such as a housing pin and / or a cylinder wall of a cylinder bore of a surrounding cylinder housing, it is provided that the base body has a core pin receptacle designed as a through opening in order to when used in a lock cylinder, a core pin of the lock cylinder can be received there. The base body has a through opening. The through opening is preferably formed centrally in the base body. The through opening extends from the outside to the inside or vice versa. The longitudinal axis of the through opening is preferably aligned perpendicular to the inside. The through opening preferably has a shape complementary to the outer contour of the core pin. In particular, the through opening has a cylindrical shape. Laterally next to the exit of the through opening on the inside, the feeler protrusion protrudes or the feeler protrusions protrude. The scanning element is preferably designed in one piece, in particular as a cast or injection-molded part. If there are several sensing projections, these are preferably the same, that is, they are of the same length and have the same contour. In other embodiments, the plurality of feeler projections are at least partially unequal, that is to say of different lengths and / or of different shapes. When used in a lock cylinder, the lock core is arranged in the lock core receptacle. The lock core is arranged in the lock core receptacle when the Lock core receptacle and the core pin bore are arranged coaxially and rotated to one another.

In one embodiment, at least one tactile projection protrudes from the inside of the base body and is provided for contacting a key section of a key inserted in the locking channel, the outside of the base body being at least partially rounded and / or having at least two differently inclined side sections or bevels.

The at least one scanning element is preferably made in one piece. In other embodiments, the sensing element can consist of several parts, for example a separate base body and separate sensing projections. In a one-piece embodiment, the scanning element is preferably designed as a die-cast part or is produced by means of die-casting. For manufacturing reasons, at least one recess for a sprue and overflow is provided on the scanning element. A recess is preferably provided at each end of a feeler projection. Further preferably, at least one recess is provided on the base body, preferably two diametrically opposite recesses. The base body has an inside and an outside. The inside is preferably designed as a plane, in particular as a planar plane. From the inside, thus the flat plane, the feeler projection protrudes or the feeler projections protrude, in particular vertically. In the case of a multi-part design, receptacles for feeler projections can be provided, from which the feeler projection or the feeler projections protrude from the inside. Opposite the inside is the outside of the base body. When used in a cylinder bore of a lock cylinder, the outside is designed in such a way that it is designed to be rotatable within the cylinder bore or to be able to slide along the wall of the cylinder bore. For this purpose, it is provided that the outside or the base body has a contour which is at least approximated to the cylindrical shape of the cylinder bore. For this purpose, the base body can be rounded on the outside, for example also rounded with different radii. In another embodiment, the base body is beveled, in particular beveled with at least two different bevels. The radius of the rounding or the slope of the bevel preferably increases from the inside to the outside.

In a further embodiment it is provided that the base body, in particular starting on an outside, has a (core pin) receptacle for receiving and / or interacting with a core pin. The receptacle is preferably designed as a through opening, more precisely as a through hole, in particular as a cylindrical through hole. The receptacle penetrates the base body of the Outside to inside. The recording is adapted to a contour of a core pin. The receptacle is preferably arranged in the middle. In addition to the inside and the outside, the base body has two further sides. The two further sides are preferably designed parallel to one another as planes, in particular as planar planes. The outside almost merges into the inside, so that the base body essentially has four sides - outside, inside, two lateral sides. The transition from the outside to the inside occurs at most via smaller lateral transitions in terms of area.

Another embodiment provides that from the inside of the base body two diagonally opposed sensing projections protrude from one another in the plane of the inside. In one embodiment, the sensing projections are formed in one piece with the base body. In another embodiment, the sensing projections are designed separately from the base body and connected to it. The sensing element has at least one sensing projection. The sensing element preferably has two sensing projections. The sensing projections preferably protrude approximately perpendicularly from the inside. The at least one feeler projection is preferably cylindrical, for example as a cylinder pin or cylinder pin section. The probe projection can, however, also have other shapes, in particular as a function of the probe function. The sensing element is intended to be inserted or inserted into a lock core in order to assume a key function there. The sensing projections are preferably of the same length. In other embodiments, the sensing projections are of different lengths.

The invention also includes the technical teaching that in a lock core for a lock cylinder it is provided that the lock core has a profiled lock channel for interaction with a key, more precisely a lateral key profile, the lock core having at least one core pin hole which opens into the lock channel , and wherein the lock core has a receiving space for a scanning element for scanning an undercut, in particular a sufficiently undercut, profile rib of a key inserted into the lock channel, the receiving space having a base space in which a base body of the scanning element can be or is inserted, and a having projection space connected to the base space to form the receiving space, which laterally at least partially, in particular over 8 percent of the total length of the projection space, breaks through into the closing channel, into which a sensing projection of the sensing element at e In the inserted scanning element protrudes, wherein the base space and / or the projection space in the direction of the axis of the core pin bore has / have a larger scanning dimension than the base body and / or than the scanning projection when the scanning element is inserted, so that a scanning space is implemented at least in the projection space in which at inserted sensing element this can be moved in the direction of the axis of the core pin bore, provided that a key section protruding into the probe space does not have an undercut profile rib that blocks the movement. A lock core with a profiled lock channel and core pin bore also with core pins and housing pins, that is to say generally with locking pins but without a receiving space, is basically known from the prior art. The receiving space is designed to receive a scanning element. The receiving space is adapted to the contour of the scanning element, tolerances being provided so that the scanning element can be moved within the receiving space in at least one direction, preferably an axial direction of the core bore. Correspondingly, the receiving space has a base space which is adapted to the base body of the sensing element, and a projection space which is adapted to the sensing projection or the sensing projections. The receiving space and the projection space are dimensioned larger in the axial direction of the core bore than the base body or the respective probe projection, so that a degree of freedom for a movement of the scanning element in the axial direction of the core bore is made possible. In this case, the receiving space in the axial direction of the core bore is dimensioned to be one scanning dimension larger than the corresponding area of the scanning element. A space for a stroke of the scanning element is thus formed. The protrusion space breaks through into the locking channel so that an (undercut) profile rib of an inserted profiled key can protrude or protrude through the locking channel into the protrusion space, more precisely into a sensing space that is defined in the axial direction of the core bore by the scanning dimension. At least 8 percent of the total length of the projection space and / or the scanning space breaks through laterally into the closing channel. In particular, the lateral breakthrough is at least 10 percent, preferably at least 15 percent, even more preferably at least 20 percent and most preferably at least 40 percent of the total length of the projection space and / or the scanning space. The projection space / scanning space essentially breaks laterally into the closing channel.

In one embodiment it is provided that the scanning dimension or the scanning area is dimensioned such that when a key is inserted with a sufficiently undercut profile rib, the profile rib protrudes into the scanning area, in particular protruding laterally into the scanning area, and when the scanning protrusion protrudes into the scanning area sufficiently undercut profile rib of the key strikes, the outside of the base body, at least in the area of the core pin bore, flush with the outer contour of the area of the housing pin and / or cylinder housing surrounding the core pin bore, so that the housing pin is prevented from penetrating into the receiving space. In the case of a key with an undercut profile rib, the front part of the profile rib protrudes from the tip to the undercut, more precisely with an overhang of the undercut profile rib into the touch space. The profile rib has when used in the Closing channel in the axial direction of the core bore a profile dimension which is less than or equal to, preferably approximately in the order of magnitude of the scanning dimension and less. Correspondingly, the part of the profile rib between the tip or the outer end and the undercut can protrude into the sensing space and be scanned there by the sensing element. Due to the undercut, an oversize, protrusion or overhang of the profile rib is formed at the tip of the profile rib, which is queried or scanned in the sensing area. In the case of profile ribs without an undercut, this oversize is smaller than the scanning dimension up to 0 mm. The feeler space is therefore not or only insufficiently occupied by the profile rib or the feeler projection does not strike the profile rib, but rather on the end wall of the projection space away from the base space. Thus, the base body also adjoins an inner wall of the receiving space and the flanks of the receiving space create an offset in the area of the locking pin, more precisely the housing pin, around which the housing pin can penetrate into the receiving space. This prevents the lock core from rotating in the cylinder bore of the lock cylinder when it is used in the lock cylinder beyond a certain angle of rotation. The angle of rotation is determined by the size of the recording space. The present invention makes it possible that the lock core can be rotated back again and is not caught in its rotated position. As a result, a key with an insufficiently undercut profile / profile rib can be pulled out of the locking channel again after it has been turned back. Sufficiently undercut thus describes an overhang formed by an undercut, which occupies a scanning space to such an extent that an adjacent scanning element inhibits a rotation of the lock core from a predetermined angle of rotation. Such undercuts or corresponding overhangs have a dimension in the axial direction of the core pin bore which is preferably more than 0.1 mm, more preferably more than 0.2 mm and most preferably more than 0.3 mm. The dimension is preferably smaller than 5 mm, more preferably smaller than 4 mm and most preferably smaller than 3 mm. The dimensions can, however, also assume values that deviate therefrom, depending on the magnitude of the lock core, key, etc. An undercut profile rib is therefore always to be understood as a sufficiently undercut profile rib which has an overhang with which the touch function can be implemented. The rib preferably protrudes through the lateral opening into the scanning space / projection space.

Another embodiment provides that the scanning element of the lock core is designed according to a scanning element described above and the receiving space of the locking core is designed to be adapted to the scanning element for receiving the scanning element with provision of the scanning area and movement towards and away from the scanning area. The receiving space is preferably designed to be complementary to the scanning element, but additionally has the scanning dimension or the stroke, that is to say is in the axial direction Core bore dimensioned larger than the sensing element or the sensing projection. This enables a linear movement in the axial direction of the core bore.

In addition, the invention includes the technical teaching that in a scanning mechanism for a lock cylinder, with a lock core that has a lock channel, into which a corresponding key can be inserted, which has at least one core pin hole designed as a through opening and which has a receiving space in which a sensing element is received, is provided that the sensing element has a core pin receptacle in alignment with the core pin bore, wherein a core pin can be received and / or received in the at least one core pin bore and the core pin receptacle, the receiving space forming a sensing space which breaks through into the locking channel or protrudes into the lock channel so that a corresponding key section of a key inserted into the lock channel protrudes or can protrude into the touch space, so that the sensing element in the area of the touch space against the corresponding key section protruding into the touch space strikes or can strike, the touch area being dimensioned so that if the corresponding key section has a sufficiently undercut profile rib, the sensing element on the one hand rests against the profile rib and on the other hand is at least partially flush with an outside of the lock core and if the key section does not have a sufficiently undercut profile rib On the other hand, when it strikes the key section, the sensing element is offset, in particular offset inwardly relative to the outside of the lock core. The scanning mechanism works as follows. A key is inserted into the keyway of the lock core. In the case of a key with a (sufficiently) undercut profile rib, the front part of the profile rib, preferably the bowl section, protrudes from the tip to the undercut of the profile rib, in particular the overhang, into the touch space. With the key portion or overhang protruding into the probe space, the key portion adjoins the probe projection associated with it in the axial core bore direction. As a result, the scanning element is pressed in the axial direction of the core bore outwards in the direction of the wall of the cylinder bore, whereby an offset between the outside and the flanks of the receiving space is prevented. The housing pin adjoins the outside without preventing the lock core from rotating in the cylinder bore. On the other hand, if a key is used without a (sufficiently) undercut profile rib, the rotary movement is blocked from a certain angle of rotation. The key without (sufficiently) undercut profile rib is inserted into the locking channel. The corresponding profile rib protrudes into the touch area at most with a small portion, whereby the corresponding touch projection either rests on the end wall of the touch area or on the part of the insufficiently undercut profile rib that is not sufficient for blocking. As a result, there is a shoulder in the area of the outside of the base body to the adjoining circumference of the cylinder core formed so that the housing pin can partially penetrate into the receiving space and a rotational movement is blocked by a stop against the flanks of the receiving space from a predetermined angle of rotation. The lock core cannot be turned any further in one direction for opening, but only back into the starting position in which the key was inserted into the lock channel. The receiving space is preferably designed symmetrically to the core bore, so that turning clockwise and counterclockwise is possible, limited by the corresponding dimension of the receiving space. The core pin is always received in the core pin receptacle of the base body. The core pin penetrates the core pin receptacle of the base body and protrudes over the base body in the direction of the key. On the outside of the base body, the core pin is flush with the outer contour if there is a sufficiently undercut profile rib on a key in the twisted state or protrudes over the outer contour of the outside if a key with an insufficiently undercut profile rib is present. In the twisted state, the core pin adjoins the wall of the lock core bore on the outside of the base body.

In one embodiment it is provided that a pin element prestressed in the direction of the closing core acts in the direction of the scanning element. The pin element is designed as a locking pin with a core pin and a housing pin. The housing pin is pretensioned by a spring and presses in the direction of the cylinder core, which also forces the core pin in the same direction. The spring and the housing pin are received in a corresponding receptacle in the cylinder housing. The core pin is received in the core bore of the lock core. Without the key inserted, the housing pin protrudes into the core hole. The core drilling continues from the receiving space in the direction of the center of the lock core. Correspondingly, the housing pin is also always forced into the receiving space, unless an inserted key counteracts it here.

Another embodiment provides that the lock core is designed according to a lock core described here and / or the scanning element is designed according to a scanning element described here.

The invention also includes the technical teaching that in a lock cylinder comprising a cylinder housing which has a lock core bore in which a lock core is rotatably received, it is provided that the lock core has a lock channel and at least one core pin bore opening into the lock channel The cylinder housing has at least one pin channel formed transversely to the lock core bore, opening into the lock core bore and in alignment with the core bore, and wherein a pin unit with a housing pin spring-preloaded in the direction of the lock core and one located in the core bore on the housing pin adjoining core pin, wherein the lock core has a receiving space with a sensing space in which a scanning element is arranged axially movable to the locking core bore, the sensing element having a core pin receptacle aligned with the core pin bore for receiving the core pin, the receiving space at least partially in the area of the sensing space the locking channel is perforated, in particular at least 8 percent of the total length of the scanning space and / or the projection space is laterally perforated, so that a key section protrudes laterally into the scanning area of the receiving area when the key is inserted into the locking channel, the receiving area and / or the scanning area being dimensioned accordingly is / are that the sensing element can be moved axially to the core pin bore in the receiving space if a key section without (sufficient) undercut protrudes into the lock channel and / or into the touch space and / or in particular a lock core after a lock described here ern is formed, which is received in the lock core bore. The key section, in particular the undercut profile rib, protrudes through the lateral opening into the scanning space / projection space.

In one embodiment it is provided that the scanning element is designed according to a scanning element described here and / or a scanning mechanism is provided according to a scanning mechanism described here.

The invention also includes the technical teaching that in a key for a locking channel of a lock core, comprising a lateral key profile, with at least one sufficiently undercut profile rib, it is provided that this (sufficiently) undercut profile rib is designed in such a way that it has an axial scanning dimension a sensing area of a lock core fills or at least almost fills, so that a scanning element adjoining the sufficiently undercut profile rib ends flush with another side or at least almost flush with an outer contour of the lock core at least in the area of the core pin bore.

The invention further includes the technical teaching that in a locking system comprising a lock cylinder, in particular a lock cylinder described here and / or a scanning element, in particular a scanning element described here and / or a scanning mechanism, in particular a scanning mechanism described here and / or a lock core , in particular a lock core described here, it is provided that a lock channel is provided and a key suitable for a lock channel, in particular a lock channel of the lock cylinder, the lock core and / or the scanning mechanism is provided.

In one embodiment it is provided that the key is designed without undercuts. The key therefore has no (sufficiently dimensioned) overhang.

Another embodiment provides that the key is designed with at least one undercut. The key thus has a (sufficiently dimensioned) overhang.

The locking system works to a certain extent with both undercut-free and undercut keys. In the case of keys without undercuts, the lock core can be turned up to a predetermined angle of rotation C and not further, but back again. The undercut-free key can be removed from the lock cylinder after turning it back and is not trapped. With an undercut key with a corresponding overhang, the lock core can be turned beyond the predetermined angle of rotation C and the complete locking function can be implemented.

Another embodiment provides that the undercut in the axial direction of a lock core bore is dimensioned such that a scanning element adjoining a profile rib having the undercut is flush with an outside of the core pin on another side.

Last but not least, the invention includes the technical teaching that in a method for scanning an undercut profile rib of a key inserted into a lock channel of a lock core, in particular a lock core described here, a lock core described here, a scanning mechanism described here, a lock core described here, a lock core described here Lock cylinder and / or a locking system described here, it is provided that the steps are included: inserting a key into the locking channel of the lock core, so that a key section, in particular a lateral key section protrudes into a tactile space of a receiving space of the lock core, with the insertion in the case that the key has a sufficiently undercut profile rib on the section that protrudes into the sensing space, which contact is made with the sensing element, which is movably arranged in the sensing space, and the sensing element in the direction of the outside e lock core is moved so that the scanning element is flush or almost flush with the outside of the lock core and, in the event that the key in which the key section protruding into the scanning area does not have a sufficiently undercut profile rib, contacts the scanning element movably arranged in the scanning area and the scanning element is moved at most in such a way that it is offset, in particular offset inwardly in the direction of the scanning space.

One embodiment provides that the method is carried out with a lock core described here, a scanning mechanism described here, a lock cylinder described here, a key described here and / or a locking system described here.

Further measures improving the invention are specified in the subclaims or can be found in the following description of at least one exemplary embodiment of the invention, which is shown schematically in the figures. All of the features and / or advantages arising from the claims, the description or the drawing, including structural details, spatial arrangement and method steps, can be essential to the invention both individually and in a wide variety of combinations. In the figures, the same or similar components are identified with the same or similar reference symbols.

Fig. 1

schematisch in einer Perspektivansicht eine Ausführungsform eines Schließsystems mit einem Schließzylinder und einem Schlüssel,

Fig. 2

schematisch in einer perspektivischen Explosionsansicht die Ausführungsform des Schließzylinders nach Fig. 1 mit für eine Abtastfunktion vorgesehenen Komponenten ohne Schlüssel,

Fig.3

schematisch in einer Seitenansicht eine Ausführungsform eines Schlüssels für einen Schließzylinder nach Fig. 1,

Fig. 4

schematisch einen Querschnitt A-A durch den Schlüssel nach Fig. 3,

Fig. 5

schematisch in einer Draufsicht den Schließkern nach Fig. 2,

Fig. 6

schematisch den Querschnitt A-A nach Fig. 5,

Fig. 7

schematisch in einer Perspektivansicht den Schließkern nach Fig. 5,

Fig. 8

schematisch in einer Perspektivansicht eine Ausführungsform eines Abtastelements für einen Schließkern,

Fig. 9

schematisch in einer Seitenansicht die Ausführungsform nach Fig. 8,

Fig. 10

schematisch in einer Seitenansicht eine andere Ausführungsform eines Abtastelements,

Fig. 11

schematisch in einer geschnitten Vorderansicht den Schließzylinder nach Fig. 1 mit einem Schlüssel mit hinterschnittener Profilrippe in einer Ausgangsposition und in einer verdrehten Position,

Fig. 12

schematisch in einer geschnittenen Vorderansicht den Schließzylinder nach Fig.1 mit einem Schlüssel ohne (ausreichend) hinterschnittener Profilrippe in einer Ausgangsposition und in einer verdrehten Position,

Fig. 13

schematisch in einer geschnittenen Vorderansicht eine Ausführungsform eines Schließkerns mit Aufnahmeraum, Basisraum, Vorsprungraum, Abtastraum und Schließkanal,

Fig. 14

schematisch in einer Vorderansicht eine Ausführungsform des Abtastelements,

Fig. 15

schematisch in einer geschnittenen Vorderansicht ein Schlüsselprofil eines Schlüssels mit (ausreichend) hinterschnittener Profilrippe,

Fig. 16

schematisch in einer geschnittenen Vorderansicht die Ausführungsform nach Fig. 11 in einer Ausgangsposition und in einer verdrehten Position.

Fig. 17

schematisch in einer Perspektivansicht das Ausführungsbeispiel eines Schließkerns nach Fig. 2 mit fertigungstechnisch angepasstem Abtastelement,

Fig. 18

schematisch in einer Perspektivansicht das in Fig. 17 dargestellte, fertigungstechnisch angepasste Abtastelement und

Fig. 19

schematisch in einer anderen Perspektivansicht das in Fig. 17 und 18 dargestellte, fertigungstechnisch angepasste Abtastelement

Show it:

Fig. 1

schematically in a perspective view an embodiment of a locking system with a lock cylinder and a key,

Fig. 2

schematically in a perspective exploded view the embodiment of the lock cylinder according to Fig. 1 with components provided for a scanning function without a key,

Fig. 3

schematically in a side view an embodiment of a key for a lock cylinder according to Fig. 1 ,

Fig. 4

schematically shows a cross section AA through the key Fig. 3 ,

Fig. 5

schematically in a plan view according to the lock core Fig. 2 ,

Fig. 6

schematically the cross section AA according to Fig. 5 ,

Fig. 7

schematically in a perspective view according to the lock core Fig. 5 ,

Fig. 8

schematically in a perspective view an embodiment of a sensing element for a lock core,

Fig. 9

schematically in a side view the embodiment according to Fig. 8 ,

Fig. 10

schematically in a side view another embodiment of a sensing element,

Fig. 11

schematically in a sectional front view according to the lock cylinder Fig. 1 with a key with an undercut profile rib in a starting position and in a twisted position,

Fig. 12

schematically in a sectional front view according to the lock cylinder Fig. 1 with a key without (sufficiently) undercut profile rib in a starting position and in a twisted position,

Fig. 13

schematically, in a sectional front view, an embodiment of a lock core with a receiving space, base space, projection space, scanning space and locking channel,

Fig. 14

schematically in a front view an embodiment of the sensing element,

Fig. 15

schematically in a sectional front view a key profile of a key with (sufficiently) undercut profile rib,

Fig. 16

schematically in a sectional front view the embodiment according to Fig. 11 in a starting position and in a twisted position.

Fig. 17

schematically in a perspective view according to the embodiment of a lock core Fig. 2 with production technology adapted scanning element,

Fig. 18

schematically in a perspective view the in Fig. 17 illustrated, manufacturing technology adapted scanning element and

Fig. 19

schematically in another perspective view the in Figures 17 and 18 illustrated, manufacturing technology adapted scanning element

The Figures 1 to 19 show, in different views and degrees of detail, embodiments of a lock cylinder 100 or its components or components.

Fig. 1 shows schematically in a perspective view an embodiment of a locking system 1 according to the invention. The locking system 1 comprises in the illustrated Embodiment a lock cylinder 100 with an associated key 10. In the Fig. 1 the lock cylinder 100 is designed as a profile double cylinder. The lock cylinder 100 comprises a cylinder housing 110, which is made up of one cylinder opening 120 each (see Fig. 2 ) comprising cylinder wall 112 having a circular cross-section and a web section 115 extending from this radially of the same material. In each cylinder opening 120, a cylinder core or lock core 130 is arranged, which is axially fixed, for example by means of a clamping ring. The inner wall of the cylinder wall 112 forms a lock core bore 121 into which the lock core 130 is inserted. A (radially and axially) cut key channel or lock channel 150 is incorporated in the lock core 130, which is open to one side of the lock core 130, more precisely to a section of the outer circumference of the lock core 130 and is aligned with a longitudinal center plane of the web section 115. In a known manner, the lock core 130 receives at least two-part tumbler elements, tumbler pins, tumbler pins or, in general, pin elements or locking pins 20, which are arranged by key shaft-side profile grooves 12 and / or profile ribs 14, 15 of the key 10. To form the profile grooves 12 on the key shaft side, the key 10 has correspondingly protruding profile projections, here in the form of profile ribs 14, 15. The core-side ends of the locking pins 20 (in Fig. 2 only one locking pin 20 is shown as an example) protrude into the locking channel 150 with a limit stop. Such locking pins 20 are known, however, so that they will not be discussed in more detail. A locking lever 50 is received in a locking lever groove 30 about an axis of rotation of the cylinder wall 112. This is rotated around the axis of rotation when a key 10 matching the lock profile is turned, i.e. with a key 10 with a corresponding key profile and key shaft-side profile grooves 12 and / or profile ribs 14, 15 matching the locking pins 20 and thus realizes a locking function of the lock cylinder 100, which is well known. The key 10 has, inter alia, a key shank 11 on which the key profile and, in other embodiments, also the permutation dimples are formed.

Fig. 2 shows schematically in a perspective exploded view the embodiment of the lock cylinder 100 according to FIG Fig. 1 with components provided for a scanning function without a key 10. The locking profile of the locking channel 150 can accordingly be seen more clearly. This has recesses, depressions and / or projections which, on the one hand, run along a main extent of the closing channel 150 and which are here defined by a central plane Z (see FIG Fig. 5 ) are formed on both sides of the Z plane. That is, the profile ribs (recesses, depressions, overhangs) 14, 15 are worked out from both sides towards the central plane Z. The closing profile can vary over the course along the main extent of the closing channel 150. The lock core 130 has beside the core (pin) bores 160 for the locking pins 20, more precisely for the core pins 21, a receiving space 170 for a sensing element 180. One of the core bores 160 runs through the receiving space 170. The scanning element 180 has a receiving element 171 for a core pin 21. The core pin 21 is thus received in the receptacle 171 penetrating the latter and protruding into the corresponding core bore 160 in the receptacle 171 and the lock core 130. The core pin 21 is part of the multi-part locking element or locking pin 20, which also includes a compression spring 22 and a housing pin 23.

Fig. 3 shows schematically in a side view an embodiment of the key 10 for the lock cylinder 100 according to FIG Fig. 1 . The key 10 has profile grooves 12 and (profile) ribs 14, 15 to form the key profile. The key 10 after Fig. 3 has two (sufficiently) undercut profile ribs 14a, 15a, as in FIG Fig. 4 can be seen more clearly.

Fig. 4 shows schematically a cross section AA through the key 10 according to FIG Fig. 3 . The key profile with the profile grooves 12 and the profile ribs 14, 15 is shown in the cross section. Two of the profile ribs 15a have a sufficient undercut 17 so that an inclined profile rib 14a or an inclined profile groove 12a is formed by the profile rib 15a and the subsequent undercut 17.

Fig. 5 shows schematically in a plan view the lock core 130 according to FIG Fig. 2 . In the view, the core (pin) bores 160 and the receiving space 170 are clearly shown. One of the core (pin) bores 160 extends through the receiving space 170. The receiving space 170 has a base space 172, which is approximately rectangular in cross section when viewed from above, and two projection spaces 174. The projection spaces 174 protrude from the receiving space 170 near the outer surface of the lock core 130, radially inward toward the center of the lock core 130 or in the axial direction of the core (pin) bore 160. The core (pin) bore 160 is Arranged approximately centrally in the receiving space 170. From the bottom of the receiving space 170, the projection spaces 174 lead inward in the axial direction of the core (pin) bore. The two projection spaces 174, which have a cylindrical shape, lie diametrically opposite one another in the plane of the bottom of the receiving space 170. An inner end of at least one projection space 174 breaks through into the closing channel 150, so that the closing channel 150 and the projection area 174 are connected to one another.

Fig. 6 shows schematically the cross section AA according to Fig. 5 . As can be clearly seen from the cross section, the projection space 174 breaks through into the closing channel 150. A scanning space 176 is thus formed in the region of the opening. This has a scanning dimension A in the axial direction of the core (pin) hole (see Fig. 11 ), which is the height of the Scanning space 176 or the stroke H (see Fig. 15 ) of the scanning element 170 is defined or corresponds to the stroke H.

Fig. 7 shows schematically in a perspective view the lock core 130 according to FIG Fig. 5 . Here is another view of the formation of the receiving space 170 with the core (pin) bore 160 continuing therein. The receiving space 170, more precisely the base space 172, is laterally delimited by flanks 178.

Fig. 8 shows schematically in a perspective view an embodiment of the sensing element 180 for the lock core 130. The sensing element 180 has a base body 181, from the inside of which two sensing projections 182 protrude approximately perpendicularly. The sensing projections 182 are cylindrical. The sensing projections 182 are arranged diametrically opposite one another and spaced apart from one another on the inside. The base body 181 has the central receptacle 183 for receiving the core pin 21. The receptacle 183 designed as a through hole penetrates the base body 181 from a front side section 184 of the outer side 185 in the direction of the inner side 189. Laterally on the outer side 185 on each side is a bevel 186 which is beveled at a first angle a on the front side section 184 adjoins. This is followed by a further bevel 187, which is beveled at a second angle b. As a result of the multiple bevels 186, 187, the sensing element 180 is optimized for contact with the housing pin 23 or an inner wall of the cylinder bore 120. In other embodiments, multiple slopes 186, 187 can be provided.

Fig. 9 shows schematically in a side view the embodiment according to Fig. 8 . The contour of the base body 180 with the two bevels 186, 187, which is adapted to the circular cylindrical contour of the cylinder bore 120, can be clearly seen here. The front side section is labeled 184. The inside is marked with 189. The two differently large angles a and b of the slopes 186, 187 are also shown.

Fig. 10 schematically shows another embodiment of the scanning element 180 in a side view Fig. 10 Instead of the two bevels 186, 187, the scanning element 180 shown has a rounded surface 186a with a radius R, which adjoins the front side section 184 in each case. Several differently rounded surfaces 186a with different radii R can also be provided.

Fig. 11 shows schematically in a sectional front view the lock cylinder 100 according to FIG Fig. 1 with a key 10 with an undercut profile rib 15a in one Starting position and in a twisted position. In the starting position, the front part of the undercut profile rib 15 of the key 10 protrudes through the locking channel 150 over the opening into the scanning space 176. There, the undercut profile rib 15a with the sloping projection, more precisely with the overhang 15b, presses against the scanning projection 182 of the scanning element 180 The sensing element 180 is correspondingly pressed outwards and is thus flush with the outer contour of the closing core 130. At this point, no or only a minimal offset occurs in the receiving space 170, so that a housing pin 23 forced against the scanning element 180 via the compression spring 22 does not protrude into the receiving space 170 or only protrudes minimally. The core pin 21, on the other hand, ends flush with the sensing element 180, so that the core pin 21 can be rotated with the lock core 130, as shown on the right in FIG Fig. 11 shown based on the rotated position. The overhang 15b of the (sufficiently) undercut profile rib 15a, which is formed between the tip of the profile rib 15a and the undercut 17 of the profile rib 15a, is dimensioned in such a way that it forces the sensing element 180 outwardly so that the lock core 130 can rotate. Without this (sufficiently dimensioned) overhang 15b, rotation is only possible to a limited extent, as shown in FIG Fig. 12 evident.

Fig. 12 shows schematically in a sectional front view the lock cylinder 100 according to FIG Fig. 1 with a key 10 without (sufficiently) undercut profile rib 15a in a starting position and in a twisted position. In the starting position the situation is similar to that in the starting position in Fig. 11 . However, the feeler projection 182 does not contact the (insufficiently undercut) profile rib 15. In the twisted situation, the importance of the missing overhang 15b becomes apparent. Due to the missing overhang 15b, the forwardly displaced stop for the scanning element 180 is missing. The scanning projection 182 is forced further inward so that the core pin 21 protrudes over the scanning element 180 and an offset 179 is formed in the receiving space 170, in which the key against the lock core 130 forced housing pin 23 penetrates. This penetration of the housing pin 23 prevents further rotation beyond the predetermined rotation angle c. The angle of rotation c can be set together with the scanning element 180 via the geometry of the receiving space 170. The following figures make it clear how the measures to achieve the scanning function are to be determined.

Fig. 13 shows schematically in a sectional front view an embodiment of a lock core 130 with receiving space 170, base space 172, projection space 174, scanning space 176 and locking channel 150 according to FIG Fig. 6 by 180 ° Fig. 6 turned. Fig. 14 shows schematically an embodiment of the scanning element 180 in a front view. Fig. 15 shows schematically in a sectional front view a key profile of the key 10 with (sufficiently) undercut profile rib 15a, that is to say with overhang 15b. Fig. 16 shows schematically in a sectional front view the embodiment according to FIG Fig. 11 in a starting position and in a twisted position. The steps for determining are numbered consecutively in the figures. D denotes the height of the projection space 174 from a structural center line of the lock core 130 in the axial direction of the core (pin) bore 160 to the stop at the end of the projection space 174. E denotes the length dimension of the projection space 174 in the axial direction. F denotes the Total height of the sensing element 170 in the axial direction of the core (pin) bore 160. G denotes the height of the feeler projection 182 in the axial direction of the core pin bore 160. I denotes a width or also key shank height I of the key 10 in the axial direction of the core pin bore 160, more precisely of the key profile. In the axial direction of the core pin bore 160, H denotes the height of the overhang 15b, which, in contrast to a non-undercut profile rib 15, results from the undercut 17 and which defines the height of the stroke and thus the scanning dimension A. As in Fig. 16 If the profile rib 15 is not (sufficiently) undercut, the overhang 15b is absent, which is why the scanning element 180 can be moved by a stroke H in the receiving space 170. The receiving space 170 has the dimension H + in the axial direction of the core pin bore 160, i.e. a dimension H increased by a tolerance. This dimension H + should be at least the same, preferably slightly greater than the dimension H in order to ensure that an offset is not sufficiently undercut Profile rib 15 is guaranteed. H + is roughly in the order of magnitude of H or A, possibly by a tolerance level above. As in Fig. 16 can be seen in the rotated position on the right, the dimension H is found again as an offset 179 on the receiving space 170. The housing pin 23 can penetrate into the receiving space 170 by this offset 179 and thus block further rotation of the lock core 130. H + is preferably less than 20%, preferably less than 15% and preferably less than 10% greater than H.

The aforementioned variables determine the scanning function. Starting from an (inner diameter) diameter J of the lock core 130, the maximum width of the receiving space 170 is to be determined. Depending on the depth of the receiving space 170, the corresponding depth of the base body 181 inserted therein can be determined. The offset or the flank height and thus also the stroke H are also dependent on the width and depth of the receiving space, which ultimately also determines the overhang 15b.

Fig. 17 shows schematically in a perspective view the embodiment of a lock core according to FIG Fig. 2 with scanning element 180 adapted in terms of manufacturing technology. In the embodiment shown, scanning element 180 is manufactured in one piece as a die-cast part. For manufacturing reasons, the scanning element 180 therefore has recesses 190 for the sprue and overflow during die casting. By doing In the illustrated embodiment, two recesses 191 are provided on the base body 181 and one recess 192 each on each probe projection 182. The recesses 191, 192 are formed directly on the side edges, so that they break through at the respective side edges and thus a recess 191, 192, which is open at least on one side, is implemented in each case. The recesses 192 on the feeler projections 182 thus form a type of bevel at the tip of the respective feeler projection.

Fig. 18 shows schematically in a perspective view that in Fig. 17 illustrated, manufacturing technology adapted scanning element 180 on its own. The recesses 190 for the sprue and overflow can be clearly seen here. Each sensing projection 182 has a recess 192 at the end remote from the base body 181. The base body 181 has two diametrically opposite recesses 192.

Fig. 19 shows schematically in another perspective view the in FIG Figures 17 and 18 The scanning element 180 shown, adapted in terms of manufacturing technology. Except for the recesses 190, this corresponds to FIG Figures 17 to 19 The scanning element 180 shown corresponds to the scanning element 180 shown in the previous figures Fig. 19 the recesses 192 at the end of the feeler projections 182 remote from the base body 181 can be clearly seen. Due to the cylindrical design of the feeler projections 182, these are chamfer-like.

It goes without saying that the aforementioned features of the invention can be used not only in the respectively specified combination, but also in other combinations or on their own, without departing from the scope of the invention.

List of reference symbols

1

Locking system

10

key

11

Key shank

12th

Profile groove

12a

sloping profile groove

14th

Profile rib

14a

sloping profile rib

15th

Profile rib

15a

(Sufficient) undercut profile rib

15b

Overhang

17th

Undercut

20th

Locking pin, pin element

21

Core pin

22nd

Compression spring

23

Housing pin

30th

Locking lever groove

40

Clamping unit

50

Locking lever

100

Lock cylinder

110

Cylinder housing

112

Cylinder wall

115

Web section

120

Cylinder opening

121

(Closing) core drilling

130

Cylinder core, lock core

150

Locking channel, key channel

160

Core (pin) hole

170

Recording room

171

(Core pin) receptacle

172

Base room

174

Tab space

176

(Ab-) tactile space

178

Flank

179

Offset

180

Sensing element

181

Base body

182

Tactile projection

183

(Core pin) receptacle

184

front side section

185

Outside

186

Slope

186a

rounded face

187

Slope

189

inside

190

Recess

191

Recess (base body)

192

Recess

a

(first) angle

b

(second) angle

c

Rotation angle

A.

Sampling dimension

D.

height

E.

Length measure

F.

Total height

G

height

H

Hub, height advantage

H +

Measure

I.

Width, key shaft height

J

(Inner) diameter of the lock core

R.

radius

Z

Middle plane

Claims (15)

Scanning element (180) for a lock core (130) of a lock cylinder (100) for scanning the presence of an undercut profile rib (15a) of a key (10) inserted into a lock channel (150) of the lock core (130), comprising
a base body (182) which has an inner side (189) which, when used in a lock core (130), points in the direction of the lock channel (150), and
has an outer side (185) which, when used in a lock core (130), is designed for contacting a housing pin (23) and / or a cylinder wall (112) of a cylinder bore (120) of a surrounding cylinder housing (110),
in which
at least one tactile projection (182) protrudes from the inside (189) and is provided for contacting a key section of a key (10) inserted into the locking channel (150),
characterized in that
the base body (182) has a core pin receptacle (183) designed as a through opening in order to receive a core pin (21) of the lock cylinder (100) there when used in a lock cylinder (100). Scanning element (180) according to Claim 1, characterized in that the outside (185) of the base body (182) is at least partially rounded and / or has at least two differently inclined slopes (187). Scanning element (180) according to claim 1 or 2, characterized in that from the inside (189) of the base body (182) two in the plane of the inside (189) spaced apart, diagonally opposite scanning projections (182) protrude. Lock core (130) for a lock cylinder (100), the lock core (183) having a profiled locking channel (150) for interaction with a key (10), more precisely a lateral key profile,
wherein the lock core (130) has at least one core pin bore (160) which opens into the lock channel (150), and
wherein the lock core (130) has a receiving space (170) for a scanning element (180) for scanning an undercut profile rib (15a) of a key (10) inserted into the locking channel (150),
wherein the receiving space (170) has a base space (172) in which a base body (182) of the sensing element (180) can be or is inserted, and
a projection space (174) connected to the base space (172) to form the receiving space (170), which laterally penetrates at least over 8 percent of the total length of the projection space (174) into the closing channel (150) into which a sensing projection (182) of the Scanning element (180) protrudes when the scanning element (180) is inserted,
wherein the base space (172) and / or the projection space (174) in the direction of the axis of the core pin bore (160) has a larger scanning dimension (A) than the base body (182) and / or than the scanning projection (184) when the scanning element (180) is inserted has / have, so that a (sensing) sensing space (176) is implemented at least in the projection space (174), in which, when the sensing element (180) is inserted, it can be moved in the direction of the axis of the core pin bore (160), provided that one enters the sensing space (176) protruding key section does not have an undercut profile rib (15a) blocking the movement. Lock core (130) according to claim 4, characterized in that
the sensing element (180) of the lock core (130) is designed according to one of the preceding claims 1 to 3 and the receiving space (170) of the locking core (130) is adapted to the sensing element (170) for receiving the sensing element (170) with provision of the sensing space ( 176) and movement back and forth to the tactile space (176) is formed. Scanning mechanism for a lock cylinder (100) with a lock core (130) which has a lock channel (150) into which a corresponding key (10) can be inserted, which has at least one core pin bore (160) and which has a receiving space (170) , in which a scanning element (180) is received, the scanning element (180) having a core pin receptacle (171) designed as a through opening, aligned with the core pin bore (160), wherein the at least one core pin bore (160) and the core pin receptacle (171) have a Core pin (21) can be received and / or received, the receiving space (170) forming a tactile space (176) which breaks through into the locking channel (150) and / or protrudes into the locking channel (150), so that a corresponding key section is one in the Locking channel (150) inserted key (10) protrudes or can protrude into the touch space (176) so that the sensing element (180) in the area of the touch space (176) against the corresponding, key section protruding into the touch space (176) strikes or can strike,
wherein the sensing area (176) is dimensioned such that when the corresponding key section has a sufficiently undercut profile rib (15a), the sensing element (180) on the one hand rests against the profile rib (15a) and on the other hand is at least partially flush with an outside of the lock core (130) closes and if the key section does not have a sufficiently undercut profile rib (15), the scanning element (180) when it strikes the key section is on the other hand offset, in particular inwardly offset to the outside of the lock core (130). Scanning mechanism according to claim 6, characterized in that the lock core (130) is designed according to one of claims 4 or 5 and / or the scanning element (180) is designed according to one of claims 1 to 3. Lock cylinder (100), comprising a cylinder housing (110) which has a lock core bore (121) in which a lock core (130) is rotatably received, the lock core (130) having a lock channel (150) and at least one in the lock channel (150) ) has opening core pin bore (160), the cylinder housing (110) having at least one pin bore formed transversely to the lock core bore (121), into the lock core bore (121) and in alignment with the core pin bore (160), and
wherein a pin element (20) with a housing pin (23) spring-preloaded in the direction of the lock core (130) and a core pin (21) lying in the core bore (160) and adjoining the housing pin (23), characterized in that
the lock core (130) has a receiving space (170) with a feeler space (176) in which a scanning element (180) which is axially movable to the lock core bore (160) is arranged, the scanning element (180) being aligned with the core pin bore (160) Has core pin receptacle (171) for receiving the core pin (21), the receiving space (170) being at least partially perforated in the area of the sensing space (176) to the locking channel (150), in particular at least 8 percent of the total length of the scanning space (176) and / or of the projection space (174) is laterally perforated, so that a key section protrudes laterally into the touch space (176) of the receiving space (170) when the key (10) is inserted into the locking channel (150), the receiving space (170) and / or the sensing space (176) is / are dimensioned such that the sensing element (180) in the receiving space (170) can be moved axially to the core pin bore (160) when a key section without a sufficiently undercut profile rib (15a) enters the Locking channel (150) and / or protrudes into the sensing space (176) and / or wherein a lock core (130) according to one of the preceding claims 4 to 6 is received in the lock core bore (160). Lock cylinder (100) according to claim 9, characterized in that
the scanning element (180) is designed according to one of the preceding claims 1 to 3 and / or a scanning mechanism according to one of claims 6 or 7 is provided. Key (10) for a lock channel (150) of a lock core (130), comprising a lateral key profile, with at least one undercut profile rib (15a), the undercut profile rib (15a) being designed in such a way that it has an axial scanning dimension (A) of a Fills the sensing space (176) of a lock core (130) at least partially, so that a scanning element (180) adjoining the undercut profile rib (15a) is flush with an outer contour of the lock core (130) at least in the area of the core pin bore (160) . Locking system (1), comprising a lock cylinder (100), in particular a lock cylinder (100) according to claim 9 or 10 and / or a scanning element (180), in particular a scanning element (180) according to one of claims 1 to 3 and / or a scanning mechanism , in particular a scanning mechanism according to one of claims 6 or 7 and / or a lock core (130), in particular a lock core (130) according to one of claims 4 or 5, wherein a lock channel (150) is provided and one for a lock channel (150) , in particular a lock channel (150) of the lock cylinder (100), the lock core (100) and / or the scanning mechanism, matching key (10) is provided. Locking system (1) according to Claim 13, characterized in that the key (10) is designed without an undercut or with at least one undercut (17). Locking system (1) according to claim 12, characterized in that the undercut (17) is dimensioned in the axial direction of a lock core bore (160) such that a scanning element (180) adjoining a profile rib (15a) having the undercut (17) has a the other side is flush with an outside of the core pin (21). A method for scanning an undercut profile rib (15a) of a key (10) inserted into a lock channel (150) of a lock core (130), in particular a lock core (130) according to one of claims 4 or 5, a lock core (130) of a scanning mechanism according to a of claims 6 or 7, a lock core (130) of a lock cylinder (100) according to one of claims 10 or 11 and / or a lock core (130) of a locking system (1) according to one of claims 13 to 16, comprising the steps:
Inserting a key (10) into the lock channel (150) of the lock core (130) so that a key section, in particular a lateral key section, protrudes into a touch space (176) of a receiving space (170) of the lock core (130), whereby when inserting that the key (10) has a sufficient undercut (17) and / or a sufficiently undercut profile rib (15a) on the section that protrudes into the sensing space (176), the sensing element (180) which is movably arranged in the sensing space (176) ) is contacted and the sensing element (180) is moved in the direction of the outside of the lock core (130) so that the scanning element (180) is flush with the outside of the lock core (130) and in the event that the key (10) in which the key section, which protrudes into the sensing space (176) has no undercut (17) or a sufficiently undercut profile rib (15a) with which contact is made with the sensing element (180) movably arranged in the sensing space (176) and the scanning element (180) is moved in such a way that it is offset, in particular offset inward in the direction of the scanning space (170). Method according to claim 14, characterized in that
the method with a scanning element (180) according to one of claims 1 to 3, a lock core (130) according to one of claims 4 or 5, a scanning mechanism according to one of claims 6 or 7, a lock cylinder (100) according to one of claims 8 or 9, a key (10) according to claim 10 and / or a locking system (1) according to one of claims 11 to 13.

Images