ES2224083T3 - LOCK CYLINDER - Google Patents

Abstract

The lock cylinder (1) has a mechanical closure (4) and an electrically controlled lock stop (5) mounted in a chamber (11) rotationally fixed to the lock core (2,3) which receives the closure. The peripheral dimension of the chamber of the lock cylinder, in the sense of the preset limited free rotation angle of the core under the action of a key, is greater than the dimension of the lock stop.

Description

Lock cylinder.

The present invention relates to a cylinder of closure according to the preamble of the main claim.

Similar closing cylinders are known for example by EP-PS 0 324 096.

Even when such closing cylinders in the practice have given completely good results, in case of sharply sharp actuation of these closing cylinders problems may occur with the maneuverable ratchet electrically, since this one for the displacement from its closing position to the unlocked position needs a certain weather.

To avoid these inconveniences, in view of the usual times to enter and turn the key, which they are in the field of 100 milliseconds, they have to be used construction groups operating very fast, to remove the electrically maneuverable ratchet out of the gear ratchet, so that the closing core of the Locking cylinder can be rotated freely.

Such rapid reaction constructive groups, due to the always existing inertia of the system as a whole, including the electric drives for the ratchet, are expensive and also consume relatively much energy.

However you must be insured in any If the user quickly enters the closing cylinder in the usual way a permitted key and then immediately the can spin, without fearing that until then the ratchet has not yet been released.

It should be avoided that after an operation similar defective the key has to be removed again and must Repeat the closing process.

That is why the problem of the invention perfect a closing cylinder of the type of construction known, provided with an electrically maneuverable ratchet, so that time to recognize the authorized key and to unlock the cylinder of closing takes place without noticeable delay for the user.

The invention solves this problem by characteristics of the main claim.

The advantage of the invention is that immediately after the "quick at will" introduction of the authorized access key can now start a turning movement in the closing core, without the ratchet that is in locked position and due to its inertia is not yet released already have to be moved to the unlocked position.

This advantage is achieved because as far as refers to the locking gear between ratchet and housing of the ratchet is provided a free turning angle, on which the closing core can be rotated a certain space of time without the blockage being effective.

The time available for the core spin of closing in case of authorized access key can be used by therefore for reading the electronic identification of the key, for its evaluation and for subsequent action to it for release the ratchet, then it may have already been initiated on rotational movement of the closing core without the user having to appreciate a corresponding impediment of the turning movement.

The principle of the invention is based on the knowledge that the closing movement of the closing core made possible by the angle of free rotation despite the ratchet "still" active lengthens the time to deactivate the ratchet in the range of up to about 100 milliseconds, so that even in case of relatively small connection currents the ratchet can be activated fast enough.

The angle of free rotation is at most the angle on which the closing core - and also the closing blade coupled with it - they can be spun without the closing blade has caused an actuation of the latch associated with it.

Since in any case it cannot be done a latch drive before ratchet release, the angle of free rotation is adequately limited so previously set.

This is conveniently done because at reach the maximum angle of rotation the ratchet that is in lock state finds a stop in the ratchet housing, so that a further turning movement of the locking core, as long as the ratchet is not released.

Thus it was found that a free turning angle in the order of magnitude of up to about 75º is completely sufficient for by means of the usual drive cycles of a cylinder of similar closure get a time gain of about 70 to 80 milliseconds

If you consider that such cylinders of closure are appropriate for both opening and closing, the angle Free spin should extend both ways of turning the closing cylinder

This is based on the base position taken by the Locking core to enter the key. In this base position exists between the ratchet and the ratchet housing a relative position, from which according to the present invention it must extend in each case towards one of the two directions of rotation An angle of free rotation.

If the angular position can be modified relative between the closing blade and the key channel by rotation of the closing blade can be obtained in any case free rotation angles large enough with one and the same closing cylinder, regardless of the question of whether the lock cylinder is assigned to a right lock or a left lock.

Conveniently these angular positions are adjustable in angular steps previously fixed.

In this regard, examples of realization for ratchet joints.

Conveniently as a stand for the shovel of closure is provided for this a tube, which is attached or at least in If necessary you can join secured against rotation with the cartridge of closing, being configured the trajectory of regulation for the closing blade by the circumference of the tube. As a union for interlocking are indicated in that blind holes, which are arranged in the outer circumference of the tube and cooperate with a spring interlocking pin on the closing blade, which in necessary case can be manipulated from the outside so that can be moved to one of the blind holes.

If this tube is made of hardened steel it turns out the additional advantage that a violent penetration into the box of the closing cylinder, as long as it is protected by the tube, is manifestly effective.

In addition the tube allows the placement of a coupling between the closing cartridge and the component of the locking cylinder in which the ratchet engages, so that even a mechanically appropriate key, which without However, you do not have the necessary electronic identification, you cannot be used for the violent forcing of the ratchet, since the interconnected coupling is designed for the transmission of A maximum turning moment.

This maximum turning moment must be less than the turning moment necessary to force, for example by shearing, the ratchet that is in locked position.

Such a coupling may be composed of a simple slip coupling or for example also by a coupling that is released abruptly, which at the time of default maximum turn works in decoupled turn.

The invention is suitable for application in closing cylinders that can be operated by one side or by both sides.

If closing cylinders are used, which can be operated on both sides, the coupling should also be able to be operated on both sides, being able to adjust on the body of coupling a pin that can be displaced by the tips of the keys, and whose length is less than the body length of coupling of the drive side to the extent of the length of a Key tip fully inserted.

Through this provision it can be achieved that always only one of the two sides of the closing cylinder can be attacked by a key, so that even a key in mechanically appropriate effect on one side of the closing cylinder, to which however lacks the necessary identification electronic, can not unduly lead to a movement of rotation of the locking core to a key inserted in the other side of the closing cylinder, which presents both the identification Correct mechanics as the relevant electronic identification.

In this regard are detailed examples of realization.

To get more time for travel from the ratchet to its unlocked position, the electronic control should be operated as soon as possible by the key entered by an appropriate signal.

This is done in a practical way by sensor arranged in the front zone of the closing cylinder, which recognizes the introduction of the key into the key channel of the core of the cylinder and communicates it in command.

Conveniently used for this purpose mechanical sensing switches, for example microswitches, that by means of a probe pivot protrude into the channel of the key.

With the introduction of the corresponding key the probe pivot moves from its registration position and in consequently the microswitch is activated.

The invention is explained in detail below. with the help of realization examples. They show:

Figure 1 a closing cylinder of this invention in side view,

Figure 2 the decisive components for the free rotation angle of the closing cylinder according to the
Figure 1,

Figure 3 the section according to Figure 2 corresponding to view III-III,

Figure 4 the mounting situation according to the Figure 3 with the maximum angle of rotation range,

Figure 5 a schematic diagram tour-time for the representation of the present invention,

Figure 6a the position of the closing blade for a right lock,

Figure 6b the position of the closing blade according to Figure 6a with the key turned,

Figure 7a the position of the closing blade for a left lock,

Figure 7b the position of the closing blade according to Figure 7a with the key turned,

Figure 8 the representation of a union by interlocking for the regulation of rotation of the closing blade,

Figure 9 the interlock connection according to the Figure 8 in view in the IX-IX direction,

Figure 10 the representation according to Figure 8 in rotated position,

Figure 11 the situation of the sensor that located in the front area of the closing cylinder,

Figure 12a the coupling body with spring loaded pin and ratchet joint to the core of closure located outside,

Figure 12b the representation according to Figure 12a in view from above,

Figure 12c the representation of the part of coupling of the drive side according to Figures 12a, 12b in view on the front side.

As long as in the following do not say another thing, the following description is always valid for all Figures.

The Figures show a closing cylinder 1. It It is a profile cylinder. In the upper area of the cylinder of profiles a circular section is provided, within which Find the closing cartridge. Here the closing cartridge is It consists of a fixed tube 3, and inside the fixed tube 3 you can rotate the closing core 2, while mechanical skewers 4 by a mechanically authorized access key have been aligned adequately.

In addition, a maneuverable ratchet 5 is provided electrically, which engages in a ratchet housing 11, to outside the mechanical gachettes 4 provide additional security Against illegal opening.

To this end the ratchet housing 11 is attached secured against rotation with the closing cartridge 2, 3, of way that an exclusive authorized access key mechanically, as long as it does not also present the identification authorized access electronics, cannot operate the cylinder close 1.

If, however, an authorized access key 12 it is introduced in the channel 13 of the key, the mechanical skewers 4 they move so that their separation joints coincide with the separation joint between the closing core 2 and the fixed tube 3, while at the same time electronic identification is consulted through communication between the active element transceiver 9 and the passive element receiver-transmitter 10 and evaluated by the module electronic 7.

If the electronic module 7 determines the Authorized access identification of the key 12 is transmitted a corresponding signal to motor 6, which, driven by the source of electric current 8, releases the maneuverable ratchet 5 electrically from its ratchet housing 11, so that at The closing cylinder 1 can then be operated.

Since between the channel 13 of the key and the closing blade 14 is provided a union secured against the turn, the closing blade 14 can consequently attack in the manner known per se to the corresponding latch and close or open this one according to the respective direction of rotation of the closing blade.

It is important now that accommodation 11 of the ratchet, seen in the direction of the circumference, present a measure that allows the so-called free rotation angle, before that ratchet 5 becomes effective in the sense of a lock of impeding the turn.

For this, in particular, Figure 3 shows that the ratchet housing is located in the radial plane in the which ratchet 5 is also arranged and extends in this radial plane through a circumference angle previously fixed, so that a relative movement between the ratchet housing 11 and ratchet 5 that engages in the ratchet housing.

Through the circumferential extension of the ratchet housing 11 is therefore possible an angle of free spin 15 or 16, on which the element can be rotated of construction in which the housing 11 of the ratchet, before the ratchet fulfills its function of blocking.

If according to Figure 4, the free turning angle 16, ratchet 5 stops against the end of the ratchet housing 11, so that in this position of turn only now ratchet 5 becomes mechanically cash.

In the examples of embodiment shown it is conceived, without limitation of the invention on this, an angle of rotation free 15 or 16 of approximately 75º.

It also shows in particular Figure 3 that the free rotation angle 15 or 16 extends in both directions of rotation of the closing core 2, that is, it allows a free rotation of impediments to both the rotation of the closing core in the direction clockwise as counterclockwise watch.

In addition to this here it is projected that the angle Free spin 15 or 16 extends in both directions of rotation in essence the same distance.

The effect of this free turning angle can be explain in the best way with the help of Figure 5.

Figure 5 shows a diagram (qualitative) tour-time with the typical development of a closing process.

The phase I introduction of the hard key typically 70 to 80 milliseconds. Then follow a pause phase II of typically about 40 to 50 milliseconds. Then the turn of the key in phase III of typically about 70 to 80 milliseconds

Phase III can only start however when ratchet 5 has been removed outside its housing 11 of the ratchet, unless measures are planned according to the invention present here.

Consequently in the closing cylinders usual today the electronic control 7 has available for release ratchet 5 only the times that are available in Phases I and II.

Thanks to the present invention this period of time is prolonged however in a space of time in which the ratchet 5 not yet extracted gear in housing 11 of ratchet within the limits of the free turning angle 15 or 16.

This time gain is sufficient in Any case to avoid malfunction of the cylinder closure 1, which could occur if in case of very rapid passage of phases I and II ratchet 5 has not yet been released.

The free rotation angle 15 or 16 is sized here so that when reaching the maximum angle of rotation, that performs by stopping the ratchet 5 at the end of the housing 11 of the ratchet, no contact has been made yet engaging the closing blade 14 in the direction of movement of the latch (not shown).

As Figures 1 and 2 show in particular, there is a gear coupling between the closing cartridge 2, 3 and the tubular construction element 22, in whose circumference outside the housing 11 of the ratchet is provided.

This gear coupling is produced by the segments 13a, 13b of the key channel aligned with each other, which together they are attacked by the key 12 introduced by full.

The closing blade 14 is attached secured against the rotation with the tube 22, so that by coupling gear between the segments 13a, 13b of the key channel the blade of closure 14 is forcedly rotated, as soon as the ratchet 5 has been released.

It exists however according to Figures 6a to 7b a relative angle 17 between channel 13; 13a, 13b of the key and the closing blade 14, considering the improvement of the invention with in each case a free turning angle in one of the two directions of rotation also in the fact that within this sector angular the closing blade 14, regardless of the use of the locking cylinder for right locks (Figures 6a, 6b) or for left locks (Figures 7a, 7b), you should avoid gear contact with the latch (not shown).

With this object the relative angular position 17 between the closing blade 14 and the channel 13 of the key can be modified by the possibility of turning the closing blade 14.

As Figures 8 to 10 show in particular, here the closing blade can only be turned in steps angles previously fixed.

The closing blade fits here on the tube 22 and is secured against rotation with the closing core 2 by means of a ratchet joint 18.

Here the ratchet joint 18 is composed of an elastic spring pin 19 with spring, which fits in a blind hole 20 of tube 22.

With this object the interlocking pin here 19 adjusts in the closing blade and has a notch 21, which coincides with an opening 35 in the closing blade accessible from the outside and in this way can be hooked by a pin 36 or similar introduced in the opening.

It can be understood that the interlocking pin 19 so hooked can be lifted against the previous tension of the spring that attacks it, so that then through a simple rotation of the tube 22 the closing blade 14 can be rotated to another relative position with respect to channel 13 of the key.

It results therefore on the circumference of the tube 22 a regulation path for the closing blade 14, over which by means of the two predetermined blind holes 20 the closing blade 14 can be fixed permanently in the outer circumference of the tube 22.

If tube 22 is made of hardened steel, you can additionally get the electronic control 7, which found on the inner side 29 of the door, practically no longer It can be manipulated from the outside.

Even if he had managed to withdraw with violence the closing cartridge 2, 3 arranged on the outer side 30 of the door, the ratchet 5 remains nevertheless engaged with its housing 11 of the ratchet and due to the tube 22 above, which preferably it is made of tempered steel, it is not easily accessible.

Additionally it is fulfilled here that tube 22 is a construction element independent of the closure cartridge 2, 3 and that inside the tube adjusts a coupling 23 that transmits the turning moment and whose coupling body 24 of the drive side is attacked by the tip of the key introduced 12, engaging the ratchet 5 in the circumference outside of tube 22 in ratchet housing 11 there provided. Additionally, tube 22 here fulfills the function of coupling body of the driven side due to the union secured against rotation with the closing blade 14.

Through this configuration of the invention the coupling 23 can be sized so that if exceeded a pre-set maximum turning moment work in spinning decoupling

This can be done for example by means of a simple friction torque or by means of a pre-tightened coupling drag, which adjusts in the drive side of the coupling and engage in a housing on the driven side of the coupling.

If a predetermined maximum turning moment is exceeded, the coupling drag is moved so that it no longer fulfills its drag function, releasing abruptly.
AC.

Additionally here Figure 1 shows a closing cylinder that can be closed on both sides.
two.

In a manner known per se such cylinder of lock is fixed on the lock with mounting screw 31, of so that one half of the closing cylinder is directed towards the inner side 29 and the other half of the closing cylinder towards the outer side 30 of the door.

For this case it is recommended to use a coupling 23 that can also be used on both sides, but which additionally has to fulfill the function that only only one of the two keys 12 can operate the cylinder of Close 1 at the same time.

For this purpose a pin 25 is provided here which slides in an axial groove 26 of the coupling body 24 on the drive side, the pin length being less than the length of the coupling body 24 on the drive side as long as 37 of the tip of the key inserted.

You can now easily understand in particular with the help of Figure 1 that the key in each case totally introduced displaces the pin so that it can no longer be another key inserted in the opposite side of the locking cylinder one.

This provision serves the purpose especially to avoid that a mechanically permissible key can only use abusively a mechanically and electronically permissible key introduced on the opposite side of the closing cylinder to the object of release ratchet 5, in order to provide the access.

This condition is of special importance in case of loss of an authorized access key, which can in effect be lock in functional block 7 so that it can no longer do operate the electrically maneuverable ratchet, but as before is in a position to align "in an unauthorized manner" the relevant mechanical skewers.

In particular also to prevent the practice of illicit violence coupling 23 makes sense to prevent the ratchet 5, which as a result of the key 12 locked electronically it is inserted in its ratchet housing, be mechanically overloaded and thus be forced.

Especially advantageous configurations of this coupling result from the request of the same applicant deposited simultaneously with the present application, to which in what concerns all the peculiarities not mentioned in the This request is expressly referenced.

Through the alternative exclusion function that realizes the pin 25 in the coupling body 24, in both front sides in the coupling body 24 is provided in each case a housing 27, in which respectively it can only fit one of the two key tips (see for example Figure one).

In addition, Figure 12a shows an improvement in which the pin 25 in the coupling body 24 is attacked by a spring 28 so that with the key removed in the outer side 30 of the door said pin is engaged by interlocking with the outer closure core 2. For this purpose the ratchet joint 39 between the end of pin 25 and a Concavity in the lock cartridge 2, 3. The cartridge joint it is used to fix the closing blade in its final position with the key channel being vertical, but it can be lifted in case of a key inserted in the inner side of the door, since the housing 27 on this side of the closing cylinder 1 it is longer than the tip of the key introduced there and so both allows pin 25 the necessary stroke for the lifting out of engagement by interlocking.

A similar closing cylinder 1 has a priority function for key 12 introduced in the part outside and cannot be operated from the inner side 29 of the door even with an authorized access key if on the side Outside a key is inserted.

It also shows in particular Figure 1 that frontally in the closing cylinder 1 a coil of reading 9 for wireless communication with an element of communication 10 installed on key 12. Here the element of communication 10 provided on key 12 is configured as a block functional passive receiver-transmitter, which receives a signal of the transmitter-receiver functional block active 9 of the closing cylinder 1, and encodes this because of the power supplied with it and the identification filed in the functional block 10 so that the encoded signal can be transmitted back, to be transmitted by the block Functional 9 in command 7.

Regarding this, attention is drawn to the state of the art (transponder).

Additionally they show particularly the Figures 1 and 11 the arrangement of a sensor 32 in the vicinity of the reading coil 9, which serves to recognize a key 12 at the time when it is introduced in channel 13 of the key. The sensor 32 is therefore a preposed element, for when entering the key, communicate to electronic control 7 that in briefly the identification check has to be carried out authorized access electronics, which is stored in the block Functional 10 on the key and on the control 7.

By means of the element before the circuit electronic for displacement of ratchet 5 is therefore activated as early as possible, in case of key authorized access (mechanically and electronically) to extract the Ratchet 5 of its closing gear as soon as possible.

It is understood that in the cylinder readable by both A sensor 32 is arranged on each side of the cylinder.

This measure, especially in combination with the free turning angle 15; 16 according to the invention, additionally serves therefore for the time gain to deactivate with the greatest anticipation possible ratchet 5.

Here it is a microswitch 33, which it has a probing pin 38 that protrudes into the channel 13 of the key, the end of the probe pin 38 being displaced by the tip of the key and the travel path being sent to the microswitch 33 for an expected switching function.

In the embodiment examples shown on Ratchet 5 is powered by an electric motor. For this a electromotor 6, which by means of an eccentric one moves in both sense the ratchet 5, as long as by means of command 7 receive the corresponding signal.

To complete also however must be covered by the invention a ratchet drive electromagnetic, by means of which the ratchet 5 can move Electromagnetically in both ways.

Conveniently it can also be provided set the base position of the closing core 2, in which the key it can be introduced totally, by means of a positioner with spring 34. The spring positioner 34 rests here between the lock cylinder housing 1 and the rotating components of the closing cylinder, a positioner of ball-spring, which fits into a concavity practiced in the circumference of the tube 22.

List of reference signs

       \ dotable {\ tabskip \ tabcolsep # \ hfil \ + # \ hfil \ tabskip0ptplus1fil \ dddarstrut \ cr} {
 1 \ + Locking cylinder \ cr 2 \ + Locking core \ cr 3 \ + Tube
fixed \ cr 4 \ + Mechanical Skewer \ cr 5 \ + Maneuverable ratchet
electrically \ cr 6 \ + Motor \ cr 7 \ + Electronic module, command \ cr
8 \ + Electric current source \ cr 9 \ +
Active transmitter-receiver, reading coil \ cr 10 \ +
Passive receiver-transmitter, functional block \ cr \ +
Coded \ cr 11 \ + Ratchet Housing \ cr 12 \ + Wrench \ cr
13 \ + Key channel \ cr 13a \ + External segment of the
the key \ cr 13b \ + Internal segment of the key channel \ cr 14
\ + Locking blade \ cr 15 \ + Free turning angle, first direction of
rotation \ cr 16 \ + Free rotation angle, second direction of rotation \ cr 17
\ + Relative angle between 13 and 14 \ cr 18 \ + Ratchet Union \ cr
19 \ + Interlocking pin \ cr 20 \ + Blind hole \ cr 21 \ +
Notch \ cr 22 \ + Tube \ cr 23 \ + Coupling \ cr 24 \ + Body
coupling side of \ cr \ + drive \ cr 25 \ +
Pin \ cr 26 \ + Axial groove \ cr 27 \ + Housing \ cr 28 \ +
Spring \ cr 29 \ + Inside door side \ cr 30 \ + Outside side
of door \ cr 31 \ + Mounting screw \ cr 32 \ + Sensor \ cr 33
\ + Microswitch \ cr 34 \ + Positioner with spring \ cr 35 \ +
Opening \ cr 36 \ + Pin \ cr 37 \ + Key tip length
introduced \ cr 38 \ + Probe Pivot \ cr 39 \ + Union by
ratchet \ cr}
    

Claims (26)

1. Closing cylinder (1) with mechanical pins (4) and with ratchet (5) electrically maneuverable, in which in the closing position the pins (4) fit into cartridge holes closing (2, 3) reciprocally assigned, which are placed about with others in aligned positions, and the ratchet (5) engages in a housing (11) of the ratchet that is attached secured against rotation with the closure cartridge (2, 3), and in this way with respect to the rotation mobility of the closing core (2) they act preventing the rotation and by means of authorized access key (12) they can be moved in the channel (13) of the key to the unlocked position so that at through the channel (13) of the key, the core (2) together with the closing blade (14) can be rotated to move a corresponding latch, the ratchet housing seen in the direction of the circumference having a specific play for the introduced ratchet, characterized in that in the direction of the circumference measured the dimension of the housing (11) of the ratchet in the direction of a free-angled angle (15; 16), previously fixedly limited, of the activated closing core (2) by means of an authorized access key (12), it is larger than the size of the ratchet (5), so that during the typically existing phases of a normal closing process, in which the movement of the ratchet is also carried out ete (5) to its release position, namely phase I of introduction, phase II of pause and phase III of turning the key, the ratchet (5) in particular during the phase III of turning the key still remains without contact with the ends of the ratchet housing (11), in case there is not yet been totally displaced to its position of liberation. 2. Closing cylinder (1) according to claim 1, characterized in that the free rotation angle (15; 16) is limited by means of the ratchet stop (5) at the end of the ratchet housing (11). 3. Closing cylinder (1) according to claim 1 or 2, characterized in that the free turning angle (15; 16) - considered from the base position of the closing core (2) to insert the key (12) - until reaching the top is approximately 75º. 4. Closing cylinder (1) according to one of claims 1 to 3, characterized in that the free turning angle (15; 16) - considered from the relative position between ratchet (5) and ratchet housing (11) in the position base of the closing core (2) to insert the key (12) - extends in both directions of rotation of the closing cylinder (2). 5. Closing cylinder (1) according to claim 4, characterized in that the free rotation angle (15; 16) extends essentially the same distance in both directions of rotation. 6. Closing cylinder (1) according to one of claims 1 to 5, characterized in that the free rotation angle (15; 16) is limited so that when the maximum angle of rotation is reached, no gear contact has yet been made. of the closing blade (14) to move the latch. 7. Closing cylinder (1) according to one of claims 1 to 6, characterized in that the relative angular position (17) between the closing blade (14) and the channel (13) of the key can be modified by turning the closing blade (14). 8. Closing cylinder (1) according to claim 7, characterized in that the closing blade (14) can only be turned in previously fixed angular steps. 9. Closing cylinder (1) according to claim 9, characterized in that the previously fixed angular steps are predetermined by ratchet joints (18) between the closing core (2) and the closing blade (14). 10. Closing cylinder (1) according to claim 9, characterized in that the ratchet joints (18) are formed by a pairing between a spring interlocking pin (19) and several corresponding blind holes (20), which are located in the regulation path of the locking pin (19). 11. Closing cylinder (1) according to claim 10, characterized in that the locking pin (19) fits in the closing blade (14) and has a notch (21), which coincides with an opening (35) in the blade of closing (14) accessible from the outside and that can be hooked by a pin (36) inserted in the opening (35). 12. Closing cylinder (1) according to claim 10 or 11, characterized in that the closing blade (14) fits on a tube (22), which is attached or can be attached secured against rotation with the closure cartridge (2) ; 3) and because the regulation path is configured by the circumference of the tube, in which the blind holes (20) are made. 13. Closing cylinder (1) according to claim 12, characterized in that the tube (22) is made of tempered steel. 14. Closure cylinder (1) according to claim 12 or 13, characterized in that the tube (22) is a separate construction element of the closure cartridge (2; 3) and that a coupling fits inside the tube (22) (23) which transmits a turning moment and whose coupling body (24) of the drive side is attacked by the tip of the key (12) introduced, and because the ratchet (5) engages in a housing (11) of the ratchet made in the outer circumference of the tube (22), the tube (22) being the driven side of the coupling. 15. Closing cylinder (1) according to claim 14, characterized in that the coupling (23) in case of being exceeded a previously set maximum turning moment works in rotation decoupling. 16. Closing cylinder (1) according to claim 15, characterized in that the coupling (23) is released abruptly. 17. Closing cylinder (1) according to one of claims 14 to 16, characterized in that the closing cylinder (1) can be closed on both sides by means of a coupling (23) that can be operated on both sides and because in the body coupling (24) adjusts a pin (25) that can be displaced by the tips of the keys, and whose length is less than the length of the coupling body (24) of the actuation side as long as one end of The key fully inserted. 18. Closing cylinder (1) according to claim 17, characterized in that the pin (25) slides in an axial groove (26) of the coupling body (24). 19. Closing cylinder (1) according to claim 17 or 18, characterized in that a housing 27 is fitted in the coupling body (24) on both front sides, in which the respective key tip can be fitted. 20. Locking cylinder (1) according to one of claims 17 to 19, characterized in that the pin (25) in the coupling body (24) is attacked by a spring (28) so that with the outer key (12) Removed said pin is engaged by interlocking with the outer closing core (2). 21. Closing cylinder (1) according to one of claims 1 to 20, characterized in that a reading coil (antenna) (9) is provided frontally in the closing cylinder (9) for wireless communication with a communication element ( 10) installed in the key (12), and because respectively in the vicinity of the reading coil (antenna) (9) a sensor (32) is fixed, which recognizes the introduction of the key (12) in the channel (13) ) of the key of the closing core (2) and communicates this to the command (7) to start the process of reading the electronic identification on the key. 22. Locking cylinder (1) according to claim 21, characterized in that a sensor (32) is provided with a microswitch (33) in combination with a probe pin (38) that protrudes into the channel (13) of the key. 23. Closing cylinder (1) according to one of claims 1 to 22, characterized in that the ratchet (5) is moved electromagnetically to the locked position. 24. Closing cylinder (1) according to one of claims 1 to 22, characterized in that the ratchet (5) can be moved by an electric motor. 25. Closing cylinder (1) according to one of claims 1 to 24, characterized in that the closing cylinder (1) can be closed on both sides and because the ratchet (5) is located on the inner side (29) of the cylinder Closing (1) that can be closed on both sides. 26. Closing cylinder (1) according to one of claims 1 to 25, characterized in that the base position of the closing core (2), in which the key (12) can be fully inserted, is fixed by means of a spring-loaded positioner (34), which rests between the housing and the rotating components (2; 22) of the closing cylinder (1).