EP0957219A1 - Mortise cylinder lock, specially for use with the protection devices of vending or gaming machines - Google Patents

Abstract

The key-duct runs longitudinally in the cylinder core inside the cylinder housing. The key duct opens in an opening on both end sides of the cylinder housing. The flat key inserted into the duct turns the core. Housing pins are arranged in rows behind and or beside each other. The cylinder lock is locked in at least one opening in the object being secured. The opening contains a support disc supporting this part of the inner cylinder housing part. The exterior of the cylinder housing part near the support disc has at least one surface facing the slide bolt (21) in a locked position. The surface slopes inwards contrary to the pull-out direction of the cylinder housing part.

Description

The invention relates to a cylinder lock, in particular for use on protective devices and traps for slot machines and vending machines, on roller shutter gates, on movable protective grids or the like, with a cylinder housing, in which one with a cylinder core with a longitudinal axis Key channel in one on both ends of the cylinder housing opening opening is rotatably arranged by a in the Key channel flat key to be inserted by a limited amount in the circumferential direction is driven by rotation, with several rows one behind the other and / or side by side Housing pins and associated core pins, the pin tumblers form, and with a slide bolt that can be driven by the cylinder core, wherein the cylinder lock in at least one receiving opening of the securing object is arranged and locked there, being in the opening a support disc is arranged radially this part of the inner cylinder housing section supports, and that one in the longitudinal axis direction on the cylinder lock applied tensile force deforms the slide bolt, such that due to the wedge effect between the cylinder lock and the slide bolt as well the receiving opening of the object to be protected corresponding to the tensile force Resistance can be opposed

Plug-in cylinder locks of the required type are of diverse designs previously known. However, these cylinder locks are due to burglary relatively simple and despite the arrangement of numerous housing and core pins to break up quickly, for example by entering the key channel a screw is screwed in, by means of which the cylinder core can be pulled out of the cylinder housing. The pin tumblers sheared, the slide bolt bent and torn and also out torn out of the case.

DE 27 00 350 A is a locking device with one in one Lock housing rotatable locking pin, at least one locking member, by means of which the locking pin is prevented from rotating, and one Key for moving the locking member known so that the Locking pin is freely rotatable, the locking pin having a key slot has, in relation to the axis of the locking pin in the longitudinal direction runs curved and the key according to the course of curvature the key slot is also curved. The key has a plurality of recesses on at least one of its edges. The locking members are arranged on one side of the key slot, can also be arranged on both sides of the key slot be. The locking members are pin tumblers. The key instructs at its front end an inclined guide surface, by means of which the locking members are pushable away. This is said to be secure against break-ins Have the locking device manufactured because its rotating locking cylinder is one has curved key slot, in which only a suitably trained curved key can be inserted.

EP 0 364 660 A2 relates to a cylinder lock with a cylinder housing and a cylinder core rotatably mounted in it, one in its axial direction extending key channel, rotatable with one in the cylinder housing stored, coupled with the cylinder core, in the cylinder housing and made several aligned holes in the cylinder core are, which extend into the channel and in which preferably the same long housing pins and differently long core pins by spring force in Are biased towards the canal. Between the cylinder housing and cylinder core a first parting line is formed, which the housing pins without inserted Push the key through, keeping the ends of the core pins with the The locking notches on the key work together so that when the key is inserted Key the pins are shifted in a position in their axial direction the system ends of all core and housing pins are in the first parting line and thereby allow rotation of the cylinder core and the lock bit. A sleeve is provided for coupling the cylinder core to the lock bit, which is rotatably supported between the cylinder core and the housing and thereby in addition to the first parting line to the cylinder housing, a second parting line to Forms cylinder core, wherein the core pins have a lower strength than the sleeve and the housing pins. This is to ensure that even after forceful shear of the locking pins of the lock bit cannot be turned can.

The US 5 177 466 A shows a cylinder lock with flat key and tumbler pins.

EP 0 224 104 A1 describes a locking cylinder with pin tumblers and Sliding cylinder core previously known, in which the axial sliding of the cylinder core this with the actuator of a lock and / or an electric Switch connects. The locking cylinder is characterized by that the cylinder core in the rotational and locking position over the above Pin tumblers are firmly connected to a socket in a housing is rotatably mounted and fixed in the direction of displacement and a means for includes angular indexing in relation to said housing. To one To connect to the lock bit, the key must be firmly in the Cylinder core pressed in against the restoring force of a spring element become. This then results in a dome to take the lock bit with you. The coupling element has two diametrically opposite one another Driver on the material in one piece with a rotating body are connected.

DE 296 02 680 U1 shows a drilling protection for cylinder locks with Key channel and tumbler pins, being parallel or approximately parallel two pin-shaped hard material bodies are provided for the key channel extend in holes in the cylinder core on both sides of the key channel. The anti-drilling device also has a shield that is in one Slot in the cylinder core in the area between the key channel and the division level or is arranged beyond the division level, wherein the hard material body and the shield are in one piece and the holes for the hard material body and the slot in the same cross-sectional plane of the Cylinder core.

In particular, none of the cited documents shows a cylinder lock for use on safety devices and traps for gaming and vending machines, on lattice rollers, on movable protective grids or the like, where it comes to making the cylinder lock itself burglar-proof by designing that the entire castle is no longer out of it provided opening can be pulled out.

EP 0 808 970 A2 and DE 296 09 077 U1 is a plug-in cylinder lock previously known according to the generic term. This state of the art works back to the applicant. As such, these plug-in cylinder locks are good proven. The invention is a further inventive embodiment sought.

The invention has for its object to be a plug-in cylinder lock To make the genus burglar-proof.

The object is achieved by the features set out in claim 1 .

In the prior art, the outer casing of the cylinder housing is in the event of a break-in deformed and the walls in the area of the end face Hole pressed inwards. The slide bolt is also either sheared off or bent so far that it leaves the opening relatively easily of the object to be protected can be torn out. The whole castle can then be pulled out of the opening. Attempts by the applicant have shown that the explosive forces occurring are approximately uniform transferred to the wall of the bore and thus to the cylinder jacket, forces so great that even under the given conditions with the strongest wall design the cylinder is destroyed and the The slide bolt is torn off and sheared off. It must be taken into account that with guards and traps for gaming and vending machines or the like, the installation conditions are fixed. In particular, the distance between the slide bolt and an inner wall of the to be protected Object fixed and can not be enlarged arbitrarily, so that one in Area of the inner end portion of the plug-in cylinder in terms of construction Measures is very limited.

The invention ensures that the high deformation forces that occur, the case of a break-in on the inner end portion of the cylinder housing transferred from the support disc to be absorbed evenly. The support disc prevents deformation of the cylinder housing.

If one considers the plug cylinder lock as a body, one can in Longitudinal axis direction applied to the cylinder lock the Deform the slide bolt. The fact that at the end inner end of the Cylinder housing has an area, it is achieved that the slide bolt can lay down on this surface and be supported, so that in the further course attempt to break open the slide bolt like a wedge in the receiving opening acts for the plug-in cylinder, that is, the plug-in cylinder lock cannot be pull out of the opening of the object. The greater the pulling force, the on the cylinder lock is applied, the greater the wedge effect between the cylinder lock and the slide bolt as well as the receiving opening of the object to be protected. Support disc, slide bolt and contact surface for the slide bolt, therefore, reinforce the cylinder lock straight so in the endangered area; that by the usual pulling method Such a cylinder lock no longer torn out by means of a screw can be.

Characterized in that the surface opposite to an extension direction of the cylinder housing section when trying to break open - inwards - inclined is arranged, there is a particularly good and defined system of Push bolt during its deformation, so that it becomes a defined, predetermined Wedge of the slide bolt comes when trying to break open.

According to the invention, the surface can extend at an angle of 90 degrees to the longitudinal axis direction of the cylinder housing section - claim 2.

According to claim 3 , this angle can be an acute, for example in the order of 15 to 45 degrees, preferably 30 degrees. This results in a particularly high wedge effect when the slide bolt is deformed.

The wedging and deformed deformation can be supported in that the surface is concave according to claim 4 . As a result, sections of the slide bolt are deformed into the concave section of the surface, while other sections of the slide bolt that are outside of this surface become wedged during a pull-out attempt. The material cross-section is maintained through the concave surface and counteracting shearing.

In some cases it may be appropriate to design the surface in accordance with claim 5 convex.

In the embodiment according to claim 6 , the surface is provided with a corrugation. This corrugation favors the clawing between the cylinder housing section and the slide bolt when it is deformed, so that this body acts as a body which, when attempting to tear out the cylinder lock, blocks and wedges in the object in which it is installed.

Also within the scope of the invention are embodiments in which, according to patent claim 7, the surface consists of different surface sections which are arranged at different angles to one another. As a result, during a pull-out attempt, the part of the sliding bolt opposite these surface sections is deformed and is supported peripherally on the cylinder housing, so that particularly good force transmission results in many planes.

Further advantageous, inventive embodiments are described in claims 8 and 9 .

Fig. 1

ein Steckzylinderschloß gemäß der Erfindung in perspektivischer Darstellung;

Fig. 2

das aus Fig. 1 ersichtliche Steckzylinderschloß, angeordnet in einer Aufnahmeöffnung einer Wand eines zu schützenden Objektes, zum Beispiel eines Warenautomaten, nach einem Einbruchsversuch mit verformtem Schubriegel, ebenfalls in perspektivischer Darstellung;

Fig. 3

das aus Fig. 2 ersichtliche Steckzylinderschloß nach dem Einbruchsversuch mit verformtem Schubriegel;

Fig. 4

eine teilweise Stirnansicht in Richtung des Pfeiles A der Fig. 5;

Fig. 5

einen Längsschnitt durch ein in einem Warenautomaten oder dergleichen eingebautes Steckzylinderschloß gemäß der Erfindung in verriegeltem Zustand;

Fig. 6

eine Teilansicht in Richtung des Pfeiles B der Fig. 7, nach einem Einbruchsversuch und entsprechend verformtem Schubriegel entsprechend Fig. 2 in verriegeltem Zustand;

Fig. 7

ein Längsschnitt zu Fig. 6 entsprechend Fig. 5 mit verformtem Schubriegel;

Fig. 8

eine teilweise Stirnansicht in Richtung des Pfeiles C der Fig. 9 nach einem Verdrehen des Zylinderkerns mittels eines nicht dargestellten Flachschlüssels um 90 Grad in Offenstellung;

Fig. 9

einen teilweise Längsachsschnitt zu Fig. 8 in Offenstellung;

Fig. 10

einen Schubriegel in der Seitenansicht;

Fig. 11

eine Ansicht in Richtung des Pfeiles D der Fig. 10;

Fig. 12

eine Ansicht auf die hintere Stirnseite eines Steckzylinderschlosses in eingebautem Zustand;

Fig. 13

ein Steckzylinderschloß gemäß einer weiteren Ausführungsform der Erfindung in perspektivischer Darstellung;

Fig. 14

das aus Fig. 13 ersichtliche Steckzylinderschloß, angeordnet in einer Aufnahmeöffnung einer Wand eines zu schützenden Objektes, zum Beispiel eines Warenautomaten, nach einem Einbruchsversuch mit verformtem Schubriegel, ebenfalls in perspektivischer Darstellung;

Fig. 15

das aus Fig. 14 ersichtliche Steckzylinderschloß nach dem Einbruchsversuch mit verformtem Schubriegel;

Fig. 16

eine teilweise Stirnansicht in Richtung des Pfeiles A in Fig. 17;

Fig. 17

einen Längsschnitt durch ein in einem Warenautomat oder dergleichen eingebauten Steckzylinderschloß gemäß der Erfindung in verriegeltem Zustand;

Fig. 18

eine Teilansicht in Richtung des Pfeiles B der Fig. 19, nach einem Einbruchsversuch und entsprechend verformtem Schubriegel entsprechend Fig. 14 in verriegeltem Zustand;

Fig. 19

einen Längsschnitt zu Fig. 18 entsprechend Fig. 17 mit verformtem Schubriegel;

Fig. 20

eine teilweise Stirnansicht in Richtung des Pfeiles C der Fig. 21 nach einem Verdrehen des Zylinderkerns mittels eines nicht dargestellten Flachschlüssels um 90 Grad in Offenstellung;

Fig. 21

einen teilweisen Längsachsschnitt zu Fig. 20 in Offenstellung;

Fig. 22

eine perspektivische Darstellung, teils im Schnitt, eines Steckzylinderschlosses;

Fig. 23

das aus Fig. 22 ersichtliche Steckzylinderschloß, ebenfalls in perspektivischer Darstellung, teils im Schnitt, wobei der Zylinderkopf nach dem Eindrehen einer Ziehschraube an der Sollbruchstelle abgeschert ist;

Fig. 24

das Ansetzen einer Ziehschraube bei einem Zylinderkern mit Sollbruchstelle gemäß der Erfindung, in der Draufsicht und

Fig. 25

den aus Fig. 24 ersichtlichen Zylinderkern nach einem weiteren Eindrehen der Ziehschraube gemäß Fig. 24 und dem außermittigen Verlaufen der Ziehschraube;

Fig. 26

eine Darstellung entsprechend Fig. 13, ebenfalls in perspektivischer Darstellung, allerdings bei einem Verlauf der Fläche 42 unter einem spitzen Winkel zur Längsachsrichtung des Zylindergehäuses 1;

Fig. 27

das aus Fig. 26 ersichtliche Steckzylinderschloß, angeordnet in einer Aufnahmeöffnung einer Wand eines zu schützenden Objektes entsprechend der Ausführungsform nach Fig. 14, zum Beispiel eines Warenautomaten, nach einem Einbruchsversuch mit verformtem Schubriegel, ebenfalls in perspektivischer Darstellung;

Fig. 28

eine Darstellung entsprechend Fig. 15 nach dem Einbruchsversuch mit verformtem Schubriegel, ohne die Aufnahmeöffnung einer Wand eines zu schützenden Objektes;

Fig. 29

eine teilweise Stirnansicht in Richtung des Pfeiles B zu Fig. 30 und

Fig. 30

einen Längsschnitt zu Fig. 29 entsprechend Fig. 19, ebenfalls mit vertormtem Schubriegel.

In the drawing, the invention is illustrated - partly schematically - for example, wherein FIGS. 1 to 25 show a plug-in cylinder lock according to EP 0 808 970 A2, which goes back to the applicant:

Fig. 1

a cylinder lock according to the invention in perspective;

Fig. 2

the plug cylinder lock shown in Figure 1, arranged in a receiving opening of a wall of an object to be protected, for example a vending machine, after an attempted break-in with a deformed slide bolt, also in a perspective view;

Fig. 3

the plug-in cylinder lock shown in Figure 2 after the break-in attempt with a deformed slide bolt.

Fig. 4

a partial end view in the direction of arrow A of FIG. 5;

Fig. 5

a longitudinal section through a plug-in cylinder lock installed in a vending machine or the like according to the invention in the locked state;

Fig. 6

a partial view in the direction of arrow B of Figure 7, after a break-in attempt and correspondingly deformed slide bolt according to Figure 2 in the locked state.

Fig. 7

a longitudinal section to Figure 6 corresponding to Figure 5 with a deformed slide bolt.

Fig. 8

a partial end view in the direction of arrow C of Figure 9 after turning the cylinder core by means of a flat key, not shown, by 90 degrees in the open position;

Fig. 9

a partial longitudinal axis section of Figure 8 in the open position.

Fig. 10

a slide bar in side view;

Fig. 11

a view in the direction of arrow D of Fig. 10;

Fig. 12

a view of the rear end of a cylinder lock in the installed state;

Fig. 13

a cylinder lock according to a further embodiment of the invention in a perspective view;

Fig. 14

the plug cylinder lock shown in FIG. 13, arranged in a receiving opening of a wall of an object to be protected, for example a vending machine, after an attempted break-in with a deformed slide bolt, likewise in a perspective view;

Fig. 15

the plug-in cylinder lock shown in FIG. 14 after the attempted break-in with a deformed slide bolt;

Fig. 16

a partial end view in the direction of arrow A in Fig. 17;

Fig. 17

a longitudinal section through a plug-in cylinder lock installed in a vending machine or the like according to the invention in the locked state;

Fig. 18

a partial view in the direction of arrow B of Figure 19, after a break-in attempt and correspondingly deformed slide bolt according to Figure 14 in the locked state.

Fig. 19

a longitudinal section to Figure 18 corresponding to Figure 17 with a deformed slide bolt.

Fig. 20

a partial end view in the direction of arrow C of Figure 21 after turning the cylinder core by means of a flat key, not shown, by 90 degrees in the open position;

Fig. 21

a partial longitudinal axis section of Figure 20 in the open position.

Fig. 22

a perspective view, partly in section, of a cylinder lock;

Fig. 23

the plug-in cylinder lock shown in FIG. 22, also in perspective, partly in section, the cylinder head being sheared off at the predetermined breaking point after a pulling screw has been screwed in;

Fig. 24

the application of a pull screw in a cylinder core with predetermined breaking point according to the invention, in plan view and

Fig. 25

the cylinder core shown in FIG. 24 after a further screwing in of the drawing screw according to FIG. 24 and the eccentric running of the drawing screw;

Fig. 26

a representation corresponding to FIG. 13, also in a perspective representation, but with a course of the surface 42 at an acute angle to the longitudinal axis direction of the cylinder housing 1;

Fig. 27

the plug-in cylinder lock shown in FIG. 26, arranged in a receiving opening of a wall of an object to be protected according to the embodiment according to FIG. 14, for example a vending machine, after an attempted break-in with a deformed slide bolt, likewise in a perspective view;

Fig. 28

a representation corresponding to Figure 15 after the break-in attempt with deformed slide bolt, without the receiving opening of a wall of an object to be protected;

Fig. 29

a partial end view in the direction of arrow B to Fig. 30 and

Fig. 30

a longitudinal section to Fig. 29 corresponding to Fig. 19, also with a normalized slide bolt.

The plug-in cylinder lock shown in the drawing has a cylinder housing 1 and a cylinder core rotatably arranged therein in a bore 2, which has a key channel 3 running in the longitudinal axis direction has, into which a flat key, not shown, can be inserted. The flat key can be designed as a longitudinal rib profile flat key and several Have depressions through which it in the longitudinal axis direction of the cylinder core 2 arranged, in parallel to each other blind holes of the Cylinder core 2 core pins 4, 5, 6, 7 and 8 arranged to be longitudinally displaceable controls the ends facing the recesses of the flat key are tapered (Fig. 5, 7).

Coaxial with the core pins 4, 5, 6, 7 and 8 are housing pins 9, 10, 11, 12 and 13 arranged in the mutually parallel bores of the cylinder housing 1 are movable. The housing pins 9 to 13 are each against the restoring force of compression springs stored in the drawing only are indicated schematically and are each against the associated Core pin 4 to 8 facing away from the relevant housing pin 9 to 13 support under tension so that the core pins 4 to 8 accordingly are spring loaded. The core pins 4 to 8 and the housing pins 9 to 13 form the tumblers of the cylinder lock.

The cylinder housing 1 has a rear (inner) end portion 14 which has a rear-opening opening 15 in which a support disk 16 is arranged. The support disc 16 is present in the press fit in the Opening 15 arranged and designed as a step plate. The opening 15 is designed circular. The support disk 16 is in the embodiment shown made of a tin-bronze alloy CuSn8 with, for example, the following Analysis:

Cu balance; Sn 7.5 to 8.5; P 0.01 to 0.35; Fe 0.1; Ni 0.3; Pb 0.05; Zn 0.3; others together 0.2; Density kg / dm ³ 8.8.

The strength properties of this bronze can be as follows:

Tensile strength in N / mm ² 390 to 700, preferably 690 N / mm ² ; 0.2% proof stress in N / mm ² from 290 to 700, preferably 640 N / mm ² ; Elongation at break in percent from 60 to 10, preferably 10; Brinell hardness 90 to 250, preferably 220.

As can be seen, the thickness E measured in the axial direction is less than the axial length D of the opening 15 of the cylinder housing section 14 in this way there is an axial gap 17 to the head 18 of a screw 19 which in a threaded blind bore 20 of the cylinder core 2 is screwed in. The Screw 19 connects a slide bolt 21 with the cylinder core 2. This slide bolt 21 emerges from a slit-shaped, the circumference of a Circular sector extending recess 22 of the cylinder housing 1 out. The Movement of the cylinder core 2 is limited by a stop pin 23 which on the one hand engages in a radial slot 24 which is about 90 degrees or another angle in the circumferential direction of the cylinder core 2 extends and the other hand in a through hole 25 of the cylinder housing 1 is arranged. The head of the stop pin 23 engages in a bore 26 a, which is arranged in a steel jacket sleeve 27, the cylinder housing 1 encompasses most of its length. On the outside swept length section of the steel jacket sleeve 27 is an from the outside Protective hood 28 made of steel and fitted like a sleeve or cap nut, with an axial length section 29 on the steel jacket sleeve 27 a part of their length section facing outwards and with a the radial section also integrally connected to it End face of the steel jacket sleeve 27 and part of the end face of the cylinder housing 1 covers.

The protective hood 28 is with the steel jacket sleeve 27 and with the cylinder housing 1 by a plurality of radial pins 30 distributed over the circumference connected, which end on the outer periphery of the length section 29.

At 31, a locking pin is arranged, which in a slot 32 of a wall 33 intervenes. The slot 32 extends in the axial longitudinal direction of the cylinder lock. About this locking pin 31, the reaction forces that over the flat key are transferred to the cylinder lock be so that the cylinder lock cannot twist.

At 34, another radial pin is arranged through a through hole 35 of the steel jacket sleeve 27 extends through and into a coaxially arranged Blind bore 36 engages, which is arranged in the cylinder housing 1 is. Characterized the cylinder housing 1 and the steel jacket sleeve 27 against each other locked.

At 37 and 38 and 39 are walls of an object to be protected, for example of a slot machine, indicated The walls 33, 37 and 38 each have a through hole, which are arranged coaxially to each other and in which the cylinder lock is inserted.

The dimension X is usually fixed in slot machines, so that the distance between the end face 40 and the inside 41 of the wall 39 are generally small is. Due to the fact that the dimension X is given by design, it normally exists little opportunity for constructive design.

As can be seen from FIG. 12, the cylinder housing section 14 is on it the locking position of the slide bolt 21 diametrically opposite Side with a tangentially arranged, in the longitudinal axis direction of the cylinder housing 1 extending surface 42 against which the slide bolt 21 Support, hang up and wedge if necessary in the event of a break-in can.

10 and 11, the design of the sliding bolt 21 is more clearly remove. From this it can be seen that the slide bolt 21 moves sideways opening slot 43 has in the screw head 18 as an eccentric drive intervenes. The slide bolt 21 is guided through a radial groove. Of the Slide latch 21 is on its top and bottom according to one Circular arcs 44 and 45 are rounded.

The slide bolt 21 does not consist of the embodiment shown rusting steel, for example made of X 5 CrNi 18 10, material number 1.4301. Such a steel is an austenitic steel that is quenched at room temperature Condition has the following properties:

Density 7.9 kg / dm ³ , the elastic modulus at 20 degrees Celsius 200 kN / mm ² , at 100 degrees Celsius 194.

The steel jacket sleeve 27 is also made of stainless steel X 10 CrNiS 18 9, material number 1.4305. This is also an austenitic one Steel, which has the following material properties when quenched having:

Tensile strength 500 to 700 N / mm ² , elongation at break approx. 35%, impact strength 160 mm according to DIN 17010.

1, 2, 3, 4, 6 and 8 that the Protective hood 28 material-wise connected with it, directed radially Sectors 46 or 47 or radial sectors, which faces outwards Overlap the end face 48 of the cylinder core 2 on part of its surface. In this way, the cylinder core 2 is still against axial pulling out secured. These radial sectors 46 and 47 extend to immediately the key channel 3 so that tampering with intrusion tools become more difficult.

If a tensile force P (Fig. 2, 3) is exerted on the cylinder lock, then this can lead to the slide bolt 21 as shown in FIGS. 2, 3 and 7 is bent backwards towards wall 39 in a defined manner, because the tangential surface 42 a defined deformation of the Slide bolt 21 allows. Now tries to remove the cylinder lock pulling out the openings of the object to be secured, this leads to a wedging of the sliding bolt 21 bent backwards in the concerned Recess of the wall 38 so that it is impossible to pull it out. Each namely the greater the tensile force P on the plug-in cylinder lock, the greater is the wedging force. This does not result in the shear bolt 21 shearing off possible. Also the radial deformation of the enlarged diameter cylinder housing section 14 is excluded because this is the support disk 16 prevented. The forces that occur are distributed radially over the circumference approximately evenly in the opening 15.

For the embodiment shown in FIGS. 13 to 25, parts have been same function, the same reference numerals as in the embodiment 1 to 12 used. The operation of the embodiment 13 to 25 thus basically corresponds to the embodiment 1 to 12, so that with regard to the basic structure and the functioning of the cylinder lock on the related the embodiment according to FIGS. 1 to 12 made references can be.

The embodiment according to FIGS. 13 to 25 differs from the one described above Embodiment as follows:

First, the protective hood 28 is no longer - as in the embodiment 1 to 12 - provided with radial sectors 46. Rather, the cylinder core 2 at its outwardly facing end section with one at the Embodiment shown enlarged cylinder core head 49 provided, the material over a predetermined breaking point 50 in one piece with the Cylinder core 2 is connected. The cylinder core head 49 can, however, if necessary also have the same diameter as the cylinder core 2.

The predetermined breaking point 50 is by existing on both sides of the key channel 3 strip-shaped material parts formed in the illustrated embodiment towards the outside by symmetrical parallel to each other walls 51 and 52 arranged to the axis of rotation of the cylinder core 2 are limited becomes. In the present case, these walls 51, 52 are each formed by a radial groove 53 or 54 formed. The axial width G can be in the case of any radial groove 53 or 54 an embodiment 0.5 mm. Both grooves 53 and 54 are arranged the same size and symmetrical to the longitudinal axis. The axial length H of the cylinder core head 49 in this embodiment is 6 mm, while the grooves 53 and 54 approximately at an axial distance of approximately the groove width G. are arranged behind the cylinder core head 49.

Of course, the design of the predetermined breaking point 50 can also be different be carried out. For example, it is possible to provide more than two grooves. Finally, it is possible, instead of grooves 53 and 54, the predetermined breaking point 50 can also be produced differently, for example through several holes that are parallel or run at an angle to each other or by other cross-sectional reductions in the area of the predetermined breaking point or by using different ones Materials for the cylinder core 2 and the cylinder core head 49.

It can be clearly seen, for example, from FIG. 23 that after the Cylinder core head 49 material strips remain at the predetermined breaking point 50, which are dimensioned much smaller in cross section than the circular cross section of the cylinder core 2. This means that after exceeding a predetermined Tractive force of the cylinder core head 49 is sheared off. For example forces to be exerted on the cylinder core 2 by a pull screw 55 then be dimensioned such that the slide bolt 21 is still defined can be bent to lay against the surface 42 (Fig. 12) can apply the desired wedging effect. Before however further, destructively large forces are transmitted to the cylinder core 2 can, the cylinder core head 49 is sheared off at the predetermined breaking point 50 or demolished, so that the attempt to break open fails.

In addition, it can be seen particularly clearly from FIGS. 22 to 25 that the Cylinder core head 49 next to the longitudinal center axis (axis of rotation) of the cylinder core 2 is provided with a solid carbide pin 56, which is thus orthogonal to The axis of rotation of the cylinder core 2 runs and that on the outer surface of the cylinder of the cylinder core head 49 ends.

Beyond the grooves 53 and 54, i.e. inside the plug lock, is the cylinder core 2 in the embodiment shown on each side of its axis of rotation with each another solid carbide pin 57 or 58 provided. These solid carbide pins 57, 58 can in principle have the same dimensions, at least in Diameter preserved like solid carbide pin 56. Solid carbide pins as well 57 and 58 each end on the outer cylindrical surface of the Cylinder core 2 so that its rotation is not hindered. As Tungsten carbide not only come from hardened steels, but also tungsten carbides and other known carbides.

If a pulling screw 55 is now screwed into the key channel 3, then first deflected by its solid carbide pin 56 from its longitudinal axis (Fig. 25) and then either meets the solid carbide pin 57 or 58, can So only a small part of its length in the key channel 3 - if at all - be screwed in, so that the intended full Allow drawing stresses to be transferred to the cylinder core 2. The screw-in attempt thus usually ends at the solid carbide pin 57, so that only the cylinder core head 49 can be torn off at the predetermined breaking point 50. Since it - as described above - through the training and arrangement of the Has predetermined breaking point 50 in hand, the shear or tear forces before determine, in any case only such forces on the cylinder lock and transmit its housing that does not cause harmful stress mean for the storage of the plug-in cylinder lock and its inclusion.

The cutting tips of the pull screw 55 are screwed in by the Solid carbide pin 56 blunt, so that they are no longer in the rule Brass existing cylinder core head 49 and also made of brass Have the cylinder core 2 screwed in. Would a new screw 55 used, which does not yet have blunt cutting tips, this hits in any case on the solid carbide pin 57 and then can also no longer be screwed in further.

In the embodiment according to FIGS. 26 to 30, parts have the same function the same reference numerals as in the embodiments described above been used.

This embodiment according to FIGS. 26 to 30 differs from the one described above Embodiment in that the dotted area 42 arranged inclined to the longitudinal axis direction of the cylinder housing section 14 and is not tangential. For example, as shown in Fig. 27 recognizes, the direction of inclination of the surface 42 runs in the opposite direction to the tensile force P which occurs when attempting to break into the cylinder lock is exercised. It can be seen from FIGS. 27 to 30 that the inclination below an acute angle to the longitudinal axis direction of the cylinder housing section 14 runs. In the embodiment shown, the surface 42 is flat been trained. The surface 42 can also consist of several surface sections be designed (faceted).

Furthermore, it is possible to make the surface 42 concave or convex and / or to provide them with corrugation.

Finally, it can be seen from the drawing that the surface 42 in the radial extending wall of the recess 22 merges, namely the radial, rear wall of the recess 22 with a large chamfer breaks.

When attempting to break open, the slide bolt 21 lies against this surface 42 around and is supported against shearing, so that a excellent wedging of the cylinder lock in the relevant recess and / or opening of the object to be protected results.

The in the summary, the claims and in the description Features described and apparent from the drawing can both individually as well as in any combination for the realization of the Invention to be essential.

Reference list

1

Cylinder housing

2nd

Cylinder core

3rd

Key channel

4th

Core pin

5

"

6

"

7

"

8th

"

9

Housing pin

10th

"

11

"

12th

"

13

"

14

Cylinder housing section, inner, enlarged in diameter

15

opening

16

Support disc

17th

Axial gap between support disk 16 and head 18

18th

head

19th

screw

20th

Threaded blind hole

21

Drawbar

22

Recess

23

Stop pin

24th

Radial slot

25th

Through hole

26

drilling

27

Steel jacket sleeve

28

Protective cover

29

Longitudinal section, axial of 28

30th

Radial pin

31

Locking pin

32

slot

33

wall

34

Radial pin

35

Through hole

36

Blind hole

37

wall

38

"

39

"

40

Face

41

inside

42

surface

43

slot

44

Circular arc

45

"

46

Sector, radial sector

47

Sector, radial sector

48

Face

49

Cylinder head

50

Predetermined breaking point

51

wall

52

"

53

Radial groove

54

"

55

Pull screw

56

Solid carbide pin

57

"

58

"

A

View direction

B

"

C.

"

D

Length of the opening 15 in FIG. 14

E

Thickness of the support disk 16

F

length

G

Width of the grooves 53, 54

H

Axial length of the cylinder core head 49

P

Traction when trying to break open

X

Linear measure

bibliography

DE-OS 27 00 350

DE-GM 296 02 680

DE-GM 296 09 077

EP-OS 0 224 104

EP-OS 0 364 660

EP-OS 0 808 970

U.S. Patent 5,177,466

Claims (9)

Plug-in cylinder lock, in particular for use on protective devices and traps for gaming and vending machines, on lattice rolling gates, on movable protective grids or the like, with a cylinder housing in which a cylinder channel with a longitudinally extending key channel can be rotated in an opening opening on both end faces of the cylinder housing is arranged, which can be rotated by a limited amount in the circumferential direction by means of a flat key to be inserted into the key channel, with a plurality of rows of cased and / or juxtaposed housing pins and associated core pins which form pin tumblers, and with a slide bolt which can be driven by the cylinder core, the plug-in cylinder lock is arranged in at least one receiving opening of the object to be secured and is locked there, a support disk being arranged in the opening, which radially supports this part of the inner cylinder housing section, and that a tensile force applied to the plug-in cylinder lock in the longitudinal axis direction deforms the slide bolt in such a way that a corresponding resistance can be opposed to the tensile force by the wedge action between the plug-in cylinder lock and the slide bolt and the receiving opening of the object to be protected, characterized in that the cylinder housing section (14) in the region the outside of the support disc (16) is provided with at least one surface which is opposite the slide bolt (21) in the locking position and which contributes to a defined deformation, direction of deformation and support for the slide bolt (21) in the event of an attempted break-in, the surface (42) opposite to the direction of extension of the cylinder housing section (14) - running inward - is inclined. Plug-in cylinder lock according to claim 1, characterized in that the surface (42) is inclined at an angle extending from 90 degrees to the longitudinal axis direction of the cylinder housing section (14). Plug-in cylinder lock according to claim 2, characterized in that the angle is 15 to 45 degrees, preferably 30 degrees. Cylinder lock according to claim 1 or one of the subsequent claims, characterized in that the surface (42) is concave. Cylinder lock according to claim 1 or one of claims 2 to 4, characterized in that the surface (42) is convex. Plug-in cylinder colossus according to claim 1 or one of the subsequent claims, characterized in that the surface (42) is provided with corrugation. Plug-in cylinder lock according to claim 1 or one of the subsequent claims, characterized in that the surface (42) consists of a plurality of surface sections which run at different angles to one another. Plug-in cylinder lock according to claim 1 or one of the subsequent claims, wherein the slide bolt emerges from a slot-shaped recess of the cylinder housing which extends circumferentially over a circular sector, characterized in that the surface (42) is arranged in the region of the slot-shaped recess (22). Plug-in cylinder lock according to claim 8, characterized in that the surface (42) is formed by chamfering a part of the radial wall part of the slot-shaped recess (22) located at the inner end of the cylinder housing section (14) and opens into the periphery of the cylinder housing section (14).

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