EP2400083A1 - Manipulation-proof electronic lock - Google Patents

Abstract

The electronic lock (1) has a locking bolt (6), where a locking member (5) is arranged in an associated latch adjustable device. A locking element (10) is co-operated with the locking member, which is protected by a tamper-resistance element. A button-trap is designed in the locking element, and is formed by multiple grooves. The tamper-resistance element is made of manganese. A fiber component of the tamper-resistance element is made of fiberglass, carbon fiber or Kevlar(RTM: para-aramid synthetic fiber).

Description

The invention relates to an electronic lock, in particular an electronic security lock.

Electronic locks in general and electronic security locks in particular are well known in the art, which is why it does not require a separate documentary evidence at this point.

Locks, and so also electronic locks, have a lock bolt. This lock bolt is designed to be movable and coupled to a bolt adjustment device, which allows an operator by means of a corresponding actuating device to selectively spend the lock bolt in one of at least two end positions. In this case, the lock is locked in a first end position of the lock bolt and opened in a second end position of the lock bolt, that is unlocked.

Compared to a conventional lock is the peculiarity of a security lock, inter alia, that the movement of the lock bolt is lockable, so that the lock bolt is moved only after its unlocking, the unlocking of the lock bolt is only possible to authorized operators. To lock the lock bolt is used in the locks known from the prior art, a locking member. This locking member can either be locked or unlocked. However, only in the unlocked state, a movement of the lock bolt is possible because only then the locking member can be moved freely. In the locked state of the locking member is a movement of the same and thus a movement of the lock bolt is not possible. The activation and / or blocking of the locking member can be done electrically and / or mechanically.

Although the known from the prior art security locks have proven in everyday practical use, there is room for improvement, especially with regard to the security against manipulation. In addition, the interaction of lock bolt on the one hand and locking member on the other hand in the known from the prior art locks mostly mechanically very expensive, which makes a complex and therefore expensive assembly required.

A generic electronic lock is known for example from the WO 2009/039899 A1 , In this lock, the blocking member is blocked by a blocking element or released by moving the blocking element, wherein the blocking element is driven by a piezomotor. This has the particular advantage of manipulation security, because in addition to the electricity and the frequency must be replicated. However, such a lock is very expensive and prone to operation due to the interaction of a large variety of items due to the large variety of items in the lock in terms of manufacture and assembly. In addition, it has been shown that manipulation attempts with brute mechanical force can lead to the interacting elements game and a secure locking of the castle is not guaranteed.

It is quite obvious that in such locks, the electronically driven lock can be put out of action when penetrated with brute force into the area of the blocking element and this is moved, for example in such a way that a ramp or an unlocked area for the locking member is present. Such brute force takes place, for example, by simply drilled in the lock through the keyhole area with normal, in the professional field but also with high-quality drilling tools. The basic structure of such locks is known to appropriate persons. Drill into the area until you can virtually push, turn or beat the locking element with a screwdriver or equivalent. In this way, the locking member has a free path and the lock can also be operated by force, without having to use either the electronic or the mechanical key.

Starting from this prior art described the invention has the object of developing an electronic lock of the generic type to the effect that this is tamper-proof.

For technical solution , a lock with the features of claim 1 is proposed. Further advantages and features emerge from dependent claims.

To explain the invention, generic locks will first be described more clearly:

The peculiarity of the lock according to the invention can be seen in the interaction of locking member on the one hand and locking element on the other. Unlike locks known from the prior art, the locking member is arranged on the bolt adjustment and movable with this. A lock of the lock bolt is thus not due to the fact that the locking member blocks a possible movement of the lock bolt directly. It is according to the invention rather provided to be able to retract a blocking element in the movement path of the locking member, that is in the writable by the locking member movement path, wherein the blocking element is designed to be linearly movable. But also a pivotally trained blocking element, which can be pivoted into the path described by the locking member movement path, is conceivable and covered by the spirit of the invention.

The embodiment of the invention is characterized by its simplicity. There are only two components, namely the locking member on the one hand and the locking element on the other hand provided, which allow a tamper-proof blocking of the lock bolt in a simple manner. The blocking element is for example designed to be linearly movable, which, in contrast to a rotatable arrangement, requires comparatively little travel space, so that the lock according to the invention can be made comparatively compact. Incidentally, the lock according to the invention is characterized in that the blocking element for the purpose of blocking movement of the locking member and thus to the movement lock of the lock bolt in the path of movement of the locking member is retracted. By means of the locking element so a free movement of the locking member can be blocked. In the locked position of the locking element free movement of the locking member and thus a free movement of the lock bolt is not possible. The lock bolt is thus in its locked position, which only by a linear displacement of the blocking element can be canceled, which is possible only by a person authorized for it. At the same time simple construction, the lock of the invention therefore proves to be tamper-proof. It is neither a violent displacement of the lock bolt nor a violent displacement of the locking member possible. The locking element located in the locked position effectively prevents a displacement possibility of both the lock bolt and the locking element. In this case, the locking element in the locked position can preferably be supported on a support bearing, so that an unintentional transfer of the locking element in a releasing position even under the influence of violence is not possible.

The locking member is according to a particular embodiment of the invention is a spring-loaded formed element, for example in the form of a bolt, a piston, a pin or the like. In a pivotable embodiment of the locking member, this may also be annular. The formed for example in the form of a bolt locking member is formed as a separate component and used in the assembled state, for example, in a corresponding bore of the bolt adjustment. The design of the locking member as a bolt is particularly simple and easy to assemble. In addition, the locking member designed as a bolt can be replaced if necessary in a simple manner.

The locking member is designed to be displaceable according to a further feature of the invention in a direction transverse to the direction of movement of the lock bolt. There are the locked position on the one hand and the unlocked position on the other hand to distinguish. In the locked position, the locking member is under spring bias in its normal position. For the transfer of the locking member in the unlocked position, this is to be moved counter to the spring bias, for which purpose serves a further described below ramp element. This ramp member engages the locking member when the locking member is in its unlocked position, so the locking member does not block the locking member in its movement. In the unlocked position of the blocking element, the blocking member thus does not interact with the blocking element but instead with a ramp element. This ramp element allows the locking member to move against the spring force and transferred to its unlocked position. This embodiment proves to be very simple in construction and beyond as very trouble-prone

The blocking element is arranged according to a further feature of the invention on an actuator, for example, one end of a rod-shaped actuator. In this case, between the actuator on the one hand and the blocking element on the other hand, the already mentioned ramp element is arranged. The actuator is preferably rod-shaped and forms together with the ramp element and the blocking element is a one-piece assembly, which is to be referred to as adjusting device. By means of the actuator, that is, the adjusting device can optionally retract the blocking element or the ramp element in the path described by the locking member movement path. If the blocking element is located within the path of movement that can be described by the blocking element, then the blocking element is blocked in its movement, that is to say the lock is in its locked position. Moving the lock bolt is not possible in this locked position of the lock. If, however, the ramp element is retracted into the path of movement of the locking member, the lock can be transferred to its unlocked position, namely, by the locking member, which is displaceably arranged on the bolt adjustment device, being pushed up against the spring biasing of the ramp element. In the raised position of the locking member, the lock is in its unlocked position, that is, the lock bolt is completely retracted. The castle is so "open". Preferably, in the course of the opening movement of the lock bolt, the blocking element is moved back into the locking position. The lock thus locks itself in an advantageous manner.

According to an alternative embodiment of the invention, the adjusting device formed overall of blocking element, actuator and ramp element may also be formed as a circular in cross-section unit, which is designed to be rotatable about an axis of rotation. According to this embodiment of the invention, the actuator, that is, to rotate the adjusting device to selectively retract either the blocking element or the ramp element in the path described by the locking member can.

According to a further feature of the invention, the actuator, that is, the adjusting device by means of a drive linearly movable or formed to rotate about a rotational axis. Preferably, the drive is designed electrically, for example as a linear drive. Other drive configurations are conceivable. So For example, the drive may have a piezo element, for example in the form of an elliptical motor. The use of a piezo element is particularly preferred because the manipulation safety is increased when using a drive comprising a piezo element. In the case of manipulation, not only is the circuit for the drive for driving the same to bridge, it is also to ensure the setting of the correct frequency for the piezoelectric element. A simple bridging of the drive is therefore not possible, which increases the tamper resistance of the entire castle.

Preferably, the drive can be operated by a person authorized for this purpose, if necessary. An authorization can for example take place in that the drive is switchable only after prior input, for example, a pin code. Other security mechanisms can also be used here. It is only crucial that the drive is operated only by an authorized operator, that is, can be switched.

The drive ensures after its activation for a displacement or rotation of the locking element. The blocking element is thus moved out of the path of movement of the locking member out, that is, the existing blocking of the locking member is canceled. The locking member and thus the lock bolt can now be moved freely, which allows unlocking the lock.

As long as the blocking element is in its initial position, so it is not transferred by means of the drive in its release position, the locking member is blocked in its movement, since the blocking element is in the writable by the blocking member movement path. Moving the locking member and thus unlocking the lock bolt are not possible in this position of the locking element. Without authorization, that is, without operating the drive, the lock can not be unlocked.

According to a particular embodiment of the invention, a mechanical emergency release is provided. This mechanical emergency release allows opening or closing of the lock with a mechanically acting actuator, such as a key, bypassing the above-described drive for a method of blocking element. A mechanical emergency operation can then required, for example, if the drive for a movement of the locking element is defective, the electronics for detecting the authorization code is working incorrectly or the person authorized to open the lock has forgotten the authorization code required for this purpose.

The mechanical emergency release makes it possible, by means of a lever arm provided for this purpose, to manually position the blocking member in its relative position to the blocking element in such a way that it can also be guided past the blocking element, if this is not due to a malfunction of the electrical system and / or electronics from its blocking position can be moved out. By a manual method of the locking member so opening the lock bolt can be effected even in a blocking element still in its blocking position.

A manual actuation of the locking member is preferably carried out by means of a key by means of which in a conventional manner a tumbler arrangement can be transferred to the open position, in which - and only in which - an actuation of the locking member is possible.

Meanwhile, other electronic locks have become known in which the locking element is formed on a disc which is rotatable by an electric motor in a simple manner to position against a locking member either the blocking element or a ramp element.

In all these locks there is the possibility of manipulation described above. To counter this, it is proposed with the invention to introduce a manipulation resistance element into the lock, which shields the blocking element. It may be a horizontal or vertical plate, which lies in the logical Bohrweg between the keyhole in the front panel of the lock housing and the position of the blocking element. The plate can be horizontal or vertical or any shape. It can be made of manganese and / or of very hard steels. Other hard, hardened or otherwise like a hole obstructing materials are suitable. Also, pins can be introduced, which cause the drill slips off and preferably breaks. Also known and proven in use are fiber components that wrap the mechanically moving parts, such as the drill, and clamp and clamp, so that further drilling virtually eliminated. The Fibers can be applied to plates, formed as a network and the like.

The invention also proposes to form at least one tactile trap. A Tastfalle preferably consists of grooves, for example with a curvature curve corresponding to the control disk. If, nevertheless, was successfully drilled, someone who tries to manipulate the lock, drive with a pin, a screwdriver or the like in the hole and try to exercise there, for example, mechanical pressure on the locking element. In this case, the screwdriver would reach, for example, in the region of a tactile trap and there could even be a contour scan by the person. However, pressure applied there will be ineffective because no functional elements are compromised.

The protection or shielding in the context of the invention prevents a violent access or makes it difficult at least. It protects against drilling, stinging, driving a thorn and the like. Either the access path is obstructed or a bypass is forced through the element.

With the invention, a simple solution for the improvement of electronic locks is provided, which can be carried out with little economic effort and secures the locks to a considerable extent against manipulation.

Fig. 1

in einer Draufsicht von oben das Schloss gemäß einer ersten Ausführungsform in entsperrter-Stellung;

Fig. 2

in einer Draufsicht von oben das Schloss gemäß einer ersten Ausführungsform in versperrter Stellung;

Fig. 3

in einer Schnittdarstellung das Schloss gemäß der Schnittlinie III-III nach Fig. 2;

Fig. 4

in einer Explosionsdarstellung das Schloss gemäß einer Ausführungsform;

Fig. 5

in einer schematischen Perspektivdarstellung das Schloss gemäß einer Ausführungsform in versperrter Stellung;

Fig. 6

in einer schematischen Perspektivdarstellung das Schloss gemäß einer Ausführungsform in entriegelter Stellung;

Fig. 7

in einer schematischen Perspektivdarstellung das Schloss gemäß einer Ausführungsform während des Öffnungsvorganges in einer ersten Stellung;

Fig. 8

in einer schematischen Perspektivdarstellung das Schloss gemäß einer Ausführungsform während des Öffnungsvorganges in einer zweiten Stellung;

Fig. 9

in einer schematischen Perspektivdarstellung das Schloss gemäß einer Ausführungsform in entsperrter Stellung;

Fign. 10 bis 17

in verschiedenen Ansichten das Schloss in einer weiteren Ausführungsform;

Fign. 18 bis 28

in verschiedenen Ansichten das Schloss in einer weiteren Ausführungsform, nämlich einer Ausführungsform mit mechanischer Notentriegelung;

Fig. 29

eine perspektivische Darstellung eines geschlossenen Schlosses mit einer symbolisierten Einbohrsituation;

Fig. 30

eine Darstellung gemäß Fig. 1 von der Seite mit durchsichtigem Gehäuse;

Fig. 31

eine Darstellung gemäß Fig. 1 bei geöffnetem Gehäuse;

Fig. 32

eine Darstellung gemäß Fig. 31 mit entnommenen Zuhaltungen;

Fig. 33

eine Darstellung gemäß Fig. 32 mit entnommenen Schieber und aus einer anderen Perspektive und

Fig. 34

eine Darstellung einer weiteren Ausführungsform eines Schlosses bei geöffnetem Gehäuse.

Further features and advantages of the invention will become apparent from the following description with reference to FIGS. Showing:

Fig. 1

in a plan view from above the lock according to a first embodiment in the unlocked position;

Fig. 2

in a plan view from above the lock according to a first embodiment in the locked position;

Fig. 3

in a sectional view of the lock according to the section line III-III after Fig. 2 ;

Fig. 4

in an exploded view, the lock according to an embodiment;

Fig. 5

in a schematic perspective view of the lock according to an embodiment in the locked position;

Fig. 6

in a schematic perspective view of the lock according to an embodiment in the unlocked position;

Fig. 7

in a schematic perspective view of the lock according to an embodiment during the opening operation in a first position;

Fig. 8

in a schematic perspective view of the lock according to an embodiment during the opening operation in a second position;

Fig. 9

in a schematic perspective view of the lock according to an embodiment in the unlocked position;

FIGS. 10 to 17

in different views, the lock in a further embodiment;

FIGS. 18 to 28

in different views, the lock in a further embodiment, namely an embodiment with mechanical emergency release;

Fig. 29

a perspective view of a closed lock with a symbolized drilling situation;

Fig. 30

a representation according to Fig. 1 from the side with transparent housing;

Fig. 31

a representation according to Fig. 1 with the housing open;

Fig. 32

a representation according to Fig. 31 with withdrawn tumblers;

Fig. 33

a representation according to Fig. 32 with slide removed and from another perspective and

Fig. 34

a representation of another embodiment of a castle at open housing.

The figures show various embodiments of the lock according to the invention. The FIGS. 1 to 9 shows a first embodiment. The FIGS. 10 to 17 show a second embodiment and the FIGS. 18 to 28 show a third embodiment, wherein the third embodiment is based on a configuration according to the second embodiment and in addition to this has a mechanical emergency release. The third embodiment according to the FIGS. 18 to 28 is the most preferred in particular.

The lock 1 according to the invention according to a first embodiment and its structural components can be best described according to the FIGS. 1 to 4 remove. The FIGS. 5 to 9 show in schematic perspective view in individual steps the transfer of the lock 1 according to the invention from the locked position Fig. 5 to the unlocked position Fig. 9 ,

The lock 1 according to the invention has a housing formed from two housing parts. For the sake of clarity, in Figs. only one housing part 2 is shown.

The lock 1 has a lock bolt 6 displaceably arranged in the direction of movement 13 in the housing part 2. This lock bolt 6 can be moved back and forth in the direction of movement 13. In the retracted position of the lock bolt 6, the lock 1 is unlocked. This position of the lock bolt 6 is in the FIGS. 1 and 9 shown. The "locked", that is locked position of the castle show the FIGS. 2 and 5 , In the locked position of the lock of the lock bolt in the direction of movement 13 with respect to the plane of the drawing after Fig. 1 or 2 to the left out of the housing part 2.

To actuate the lock bolt 6, that is to move the lock bolt 6 in the direction of movement 13 is a latch adjustment 9, which is formed in the embodiment shown as a sliding crank. The bolt adjustment device 9 has a pivot arm 3 on the one hand and an articulated arm 4 on the other hand. As in particular the representations after the FIGS. 1 and 2 can be seen, the articulated arm 4 of the bolt adjustment device 9 is articulated on the lock bolt 6. The Swivel arm 3 is in turn pivotally connected to the articulated arm 4, wherein at the other end of the articulated arm 4, a connecting piece 15 is provided, which is the coupling of a in Figs. not shown actuating element is used. This in the Fign. actuator not shown, for example, a door handle, a door knob or the movable part of a lock cylinder or the like. On the design of this actuator is not important in view of the invention.

The connector 15 is formed in the manner of a sleeve and used in the final assembled state of the lock in a bearing body 16, in particular the representations of the FIGS. 1 and 2 reveal.

For a pivotable arrangement of the swivel arm 3 on the articulated arm 4, the swivel arm 3 has a bolt 17, which engages in the finished mounted state in a corresponding thereto formed bore 18 of the articulated arm 4. At the other end of the articulated arm 4 is pivotally mounted on the lock bolt 6, to which the lock bolt 6 carries a bolt-shaped extension which engages in the mounted state in a second bore 20 of the articulated arm 4.

Upon actuation of the in Figs. not shown actuating element is the connecting piece 15 and thus the pivot arm arranged thereon, starting from the in Fig. 2 shown locked position of the castle with respect to the plane of the drawing Fig. 2 swiveled to the right. Therefore, the overall designed as a sliding-crank latch adjustment 9 causes a retraction of the lock bolt 6 in the housing part 2 in, as in Fig. 1 shown. The arranged on the lock bolt 6 articulated arm 4 is hereby pivoted accordingly. A possibly too wide pivoting of the articulated arm 4 can be prevented by appropriate trained on the lock bolt 6 stops 21 and 22.

The articulated arm 4 has, as in particular the illustration after Fig. 4 can recognize, via a section 23 which has a bore 24. In this bore 24, a locking member 5 is inserted in the final assembled state of the lock 1.

The locking member 5 is formed in the manner of a bolt and has a Base body 25 and an integrally arranged thereon head 26. The head 26 opposite the base body 25 carries a circumferential groove 27 which serves to receive a lock washer 28. As the representation after Fig. 4 can be seen, the locking member 5 is mounted with the interposition of a compression spring 29 on the articulated arm 4.

The lock 1 according to the invention furthermore has a blocking element 10. This is arranged with the interposition of a ramp element 11 on an actuator 7. In the preferred embodiment according to FIGS. form the actuator 7, the ramp element 11 and the blocking element 10 is a common structural unit, which may be referred to as actuator 32. This unit can be moved linearly in the direction of movement 13, along a guide contour 30 provided for this purpose. For a movement of the actuator 7 or the ramp element arranged thereon or the blocking element 10 arranged thereon, a drive 8 serves as a piezoelectric element in FIG Form of Elliptecmotors is formed. By means of this drive 8, the actuator 7 and thus the ramp element 11 and the blocking element 10 with respect to the drawing plane after Fig. 2 the movement direction 13 to be moved to the left following.

As can be seen from a synopsis of FIGS. 1 and 2 shows, the locking member 5 moves upon actuation of the latch adjustment 9, that is, upon pivoting of the articulated arm 4 on a circular segment-shaped trajectory 12. In the locked state of the lock 1, the in Fig. 2 is shown, the blocking element 10 is retracted into this movement path 12 of the locking member 5. The blocking element 10 thus blocks the locking member 5 in its movement, which is why a pivoting of the locking member 5 and thus a method of the lock bolt 6 is not possible. In this case, the blocking element 10 is in turn pressed against the supporting bearing 14, so that displacement of the lock bolt 6 remains blocked even under greater force.

For example, an authorized operator is allowed, under pin code input, to set the drive 8 in motion and thus the actuator 7 with respect to the drawing plane Fig. 2 to move to the left. As a result of this shift, the blocking element 10 is moved out of the movement path 12. Instead, the ramp element 11 enters the path of movement 12. In contrast to the blocking element 10, however, the ramp element 11 makes it possible for the blocking element 5 with its head 26 to follow the ramp of the ramp element 11 against the compression spring force of the compression spring 29 is moved. This displacement possibility of the locking member 5 against the action of the compression spring 29 at the same time allows continued operation of the latch adjustment 9, so that the lock bolt 6 in the in Fig. 1 shown unlock position of the lock 1 can be spent.

The peculiarity of the embodiment according to the invention lies in its simplicity. An operation of the castle takes place in the usual way via a in the Fign. not shown in detail actuator. In this case, as a result of actuation of the lock bolt 6 via a bolt adjustment in the direction of movement 13 back and / or forth moves. During this reciprocating movement of the lock bolt 6, a locking member 5 coupled with it in its freedom of movement is moved on a circular movement path 12. In this movement path 12, a blocking element 10 or a ramp element 11 can be inserted. The locking element 11 is located within the path of movement 12, so a transfer of the lock bolt 6 in the unlocked position of the lock is not possible because the locking member 5 is blocked in its movement. This blockade is only canceled when, instead of the blocking element 10, the ramp element 11 has moved into the movement path 12.

A transfer of the lock bolt 6 from the locked position to the unlocked position show in a perspective view of the FIGS. 5 to 9 , It can be clearly seen here that the locking member 5 in the locked position to Fig. 5 is prevented by the blocking element 10 at a further movement. Only when the locking element 10 from the locked position in the unlocked position according to Fig. 6 is transferred, a further movement of the locking member 5 and thus an opening movement of the lock bolt 6 take place. The unlocked position of the lock 1 finally shows Fig. 9 ,

A second embodiment of the lock according to the invention is in the FIGS. 10 to 17 shown. In contrast to the embodiment according to the FIGS. 1 to 9 is with the second embodiment of the FIGS. 10 to 17 a castle design shown, which has a rotatable trained adjusting device 32.

Like that FIGS. 10 to 17 can be seen in various views, the lock 1 according to the invention also has a lockable in a housing part 2 arranged lock bolt 6 after the second embodiment. This is already in manner described above connected to a bolt adjustment device 9. The articulated arm 4 of the locking device 9 carries the already described above locking member 5, wherein the locking member 5 is formed slightly differently according to the second embodiment.

The locking member 5 according to the second embodiment comprises a base body 25 which is formed as a closed tube section on one side. At the other end of the pipe section carries a collar 46, as this example Fig. 10 can be seen. In the assembled state, the main body 25 of the locking member 5 is inserted into a bore formed therefor of the articulated arm 4. In this case, the length of the main body 25 in the longitudinal direction exceeds the thickness of the articulated arm 4 with the consequence that the main body 25 of the locking member 5 with respect to the plane of the drawing Fig. 11 underside of the articulated arm 4 protrudes from this.

With reference to the drawing plane Fig. 11 On the upper side of the articulated arm 4, a holding plate 31 is fastened by means of a screw 33. An angled portion of this retaining plate 31 projects beyond the main body 25 of the locking member 5. The angled portion of the retaining plate 31 carries a in Fig. 11 not closer to recognizing guide pin 47, which dips into the pipe section formed body 25. This guide pin 47, resulting in particular from the illustration Fig. 23 can be seen, ensures a guided movement of the main body 25 of the locking member 5 with respect to the plane of the drawing Fig. 11 up and down. The main body 25 of the locking member 5 is placed under spring bias, for which purpose a spring 29 surrounding the guide pin 47 is disposed between the collar 46 of the locking member 5 on the one hand and the retaining plate 31 on the other hand, such as the illustration Fig. 11 lets recognize.

As should be clear from the above explanations, the main body 25 of the locking member 5, with respect to the plane of the drawing after Fig. 11 move up and down relative to the articulated arm 4. In this case, the main body 25 of the locking member 5 takes in Fig. 11 shown normal position due to the force acting on the main body 25 spring 29 a.

The adjusting device 32 formed from actuator 7, blocking element 10 and ramp element 11 is according to the second embodiment of the invention as a cross-section formed circular unit which is rotatable about a rotation axis 48.

The FIGS. 10 and 11 show the lock 1 according to the invention with the lock bolt 6 in the locked position. An unlocked position of the lock 1 according to the invention when the lock bolt 6 is extended is the FIGS. 12 and 13 refer to.

The locked position of the lock 1 after the FIGS. 10 and 11 is characterized in that the adjusting device 32 is in its blocking position, according to which the blocking element 10 is retracted in the writable by the locking member 5 trajectory. A retraction of the lock bolt 6 is not possible in this position, the adjusting device 32, because the arranged on the articulated arm 4 locking member 5 would strike at an adjusting movement of the bolt adjustment device 9 to the blocking element 10 of the adjusting device 32.

By means of the drive 8, which acts on the actuator 7, a rotational movement of the adjusting device 32 is possible, in such a way that instead of the locking element 10, the ramp element 11 of the adjusting device 32 moves into the path described by the locking member 5 trajectory. This position is in the FIGS. 12 and 13 shown.

The FIGS. 14 and 15 show the lock bolt 6 in one compared to the FIGS. 10 to 13 slightly retracted position. Since the adjusting device 32 in the basis of the FIGS. 12 and 13 can be described by means of a in the Fign. not shown actuating element a rotational movement are exerted on the pivot arm 3, which leads to a pivoting movement of the swivel arm 3 articulated articulated arm 4. In this case, a pivoting movement of the articulated arm 4 is possible because the arranged on the articulated arm 4 locking member 5 against the force acting on the main body 25 of the locking member 5 spring force the ramp element 11 is pushed up.

The FIGS. 16 and 17 finally show the lock 1 according to the invention with fully retracted lock bolt. 6

Their functional basic idea according to the embodiments according to the FIGS. 1 to 9 on the one hand and 10 to 17 on the other hand coincide. The only difference is that in the embodiment according to the FIGS. 1 to 9 the Adjusting device 32 is formed linearly movable, whereas in the embodiment of the FIGS. 10 to 17 a rotatable about an axis 48 adjusting device 32 is provided.

Based on the embodiment of the FIGS. 10 to 17 is in the FIGS. 18 to 28 a third and preferred embodiment shown. The third embodiment according to the FIGS. 18 to 28 differs from the second embodiment according to the FIGS. 10 to 17 by an additionally provided mechanical emergency release, which allows the lock bolt 6 to be moved by means of an actuating element, for example in the form of a key 38.

The mechanical emergency release comprises a slide 34. This slide 34 is designed to be displaceable in the direction of movement 13. About a driver 37, the slider 34 by means of the key 38 with respect to the drawing plane to Fig. 18 be moved to the left and right as a synopsis of FIGS. 18 . 19 and 20 shows.

With reference to the drawing plane after the FIGS. 21 and 22 34 tumblers 36 are arranged below the slide. These tumblers 36 provide in their opening orientation in a conventional manner a tour channel ready, in which the slider 34 rearwardly arranged touring pin 35 can retract, as shown in particular from the illustration Fig. 28 can be seen.

In an explosive representation after Fig. 23 the individual structural components of the lock according to the invention including those for the mechanical emergency release are shown. It is Fig. 23 It can be seen that all construction components are to be arranged within the housing part 2, the upper side of which can be closed by means of a cover 39. This cover 39 provides an unspecified opening for the insertion of a key 38, by means of which a mechanical emergency release is possible.

The slide 34 has an arm 41, to which a bearing arm 42 connects, in particular the representation of the FIGS. 24 and 28 lets recognize. The bearing arm 42 has at one end an opening 43 into which an end portion of a lever arm 40 engages. This lever arm 40 is pivotable by means of a spring strip 44 in Housing part 2 mounted, namely about a pivot axis 49. The engaging in the opening 43 end portion of the lever arm 40 has a further end portion 45. This end portion 45 acts on a rotational movement of the lever arm 40 on the base body 25 of the already vorerläuterten locking member 5 a.

Fig. 24 shows the lock according to the invention without housing part 2 in a rear view. It can be seen that the blocking member 5 rests against the blocking element 10 of the adjusting device 32. A method of the lock bolt 6 is, as already explained above, not possible in this position of the adjusting device 32.

As a result of a mechanical emergency release of the lever arm 40 is pivoted in the longitudinal direction of the pivot axis 49 about this, with the result that the end portion 45 with respect to the plane of the drawing after Fig. 24 presses from below against the main body 25 of the locking member 5 and pushes against the spring force of the spring 29 upwards so that it can pivot over the locking element 11 away. This is shown by the others FIGS. 25 to 27 ,

The mechanical emergency unlocking works in the following way:

The locking bolt 6 of the lock 1 according to the invention is in its extended position, such as in Fig. 18 shown. The lock 1 should now be opened, that is, the lock bolt 6 in the direction of movement 13 with respect to the plane of the drawing Fig. 18 to be moved to the right. However, this is not possible because the arranged on the locking device 9 locking member 5 runs against the locking element 10 of the actuator 32, that is, the blocking element 10, the locking member 5 and thus the locking device 9 blocked in their ability to move. In order to enable an adjusting movement of the bolt adjustment device 9, the adjusting device 32 is to be rotated in the already described manner, by means of the drive 8. This may not be possible because, for example, the drive 8 is defective. Opening the lock is therefore possible only by means of the mechanical emergency release.

For a mechanical emergency release, the key 38 is inserted in the lock. As a result of a twisting movement of the key 38, provided that the correct, that is, the key 1 according to the invention for the lock 1 is used, the tumblers 36 rotated in its open position. At the same time by means of the driver 37, the slider 34 with respect to the plane of the drawing after Fig. 18 moved to the right, with a method of the slider 34 is therefore possible because the underside arranged on the slide 34 Tour pin 35 can dip into the trained by the tumblers 36 Tour channel. If a key 38 not matching the lock 1 according to the invention is used, a displacement of the slider 34 with respect to the plane of the drawing will follow Fig. 18 to the right not possible because the arranged on the slide 34 Tour pin 35 would then drive up to the tumblers 36.

A displacement of the slider 34 with respect to the plane of the drawing Fig. 18 to the right causes the lever arm 40 is set by means of the arm 41 and the bearing arm 42 arranged thereon in a rotational movement. As a result of this twisting movement, the end portion 45 of the lever arm 40 presses from below against the main body 25 of the locking member 5 and presses with continued rotational movement of the locking member 5 with respect to the plane of the drawing Fig. 24 to the top, and indeed so far that it is lifted over the blocking element 10 located in Blockadestellung. In this position, the lock according to the invention is unlocked by means of the mechanical emergency release. A retraction of the lock bolt 6 is now possible, although the adjusting device 32 is still in its blocking position, namely because the locking member 25 is raised by the lever arm 24 so far that this drive on a pivoting movement of the articulated arm 24 on the locking element 10 away can.

In the FIGS. 29 to 33 is shown the boring situation to which the present invention relates.

A housing 1 is provided in the manner described in detail with a housing part 2 and a lid 39 is closed. For example, a drill 51 is inserted through the keyhole in the event of a manipulation attempt. This drills through all pierceable elements into the area of the locking member. In the exemplary embodiments shown, a manganese plate 52 is placed in the drill path, so that the drill initially does not pass through there and otherwise eats until it stops. The manipulation attempt has then definitely failed.

Fig. 34 shows an embodiment of a lock, in which the blocking element 10 and the ramp element 11 are formed on a disc-shaped actuator 7, which is adjusted by a drive in the form of a normal electric motor 8 via a segment toothing. The locking member 5 strikes either on the locking element 10, or when the disc 7 is rotated, it runs on the ramp element 11. Again, the set manganese plate 52 is shown, but also the tactile trap 53. If a piercing, for example, obliquely next to the manganese plate 52, the manipulating person will try to feel and twist the actuator 7 with a screwdriver, a pin, or the like. For this purpose, the Tastfalle 53 is formed, in which the manipulator will poke around with his screwdriver, but without causing an effect.

The described embodiments are only illustrative and not restrictive.

LIST OF REFERENCE NUMBERS

1

lock

2

housing part

3

swivel arm

4

articulated arm

5

locking member

6

deadbolt

7

actuator

8th

drive

9

Riegelverstelleinrichtung

10

blocking element

11

ramp element

12

trajectory

13

movement direction

14

support bearing

15

connector

16

bearing body

17

bolt

18

drilling

19

extension

20

drilling

21

attack

22

attack

23

section

24

drilling

25

body

26

head

27

groove

28

lock washer

29

feather

30

guide contour

31

Halteblech

32

setting device

33

screw

34

pusher

35

Tour pen

36

tumblers

37

takeaway

38

key

39

cover

40

lever arm

41

poor

42

bearing arm

43

opening

44

spring strips

45

end

46

collar

47

guide pin

48

axis of rotation

49

swivel axis

50

circuit board

51

drill

52

Manga plate

53

Tastfalle

Claims (9)

Electronic lock, in particular safety lock, with a lock bolt (6), a bolt adjustment device (9) connected thereto, a locking element (5) arranged on the bolt adjustment device (9) and a blocking element (10) cooperating with the locking member (5),
characterized,
that the blocking member (5) is protected by at least one manipulation resistance element. Electronic lock according to claim 1, characterized in that the manipulation resistance element comprises manganese. Electronic lock according to one of the preceding claims, characterized in that the manipulation resistance element comprises fiber portions. Electronic lock according to claim 3, characterized in that the fiber components comprise glass fiber, carbon fiber or carbon fiber. Electronic lock according to one of the preceding claims, characterized in that the manipulation resistance element is designed as a plate. Electronic lock according to one of the preceding claims, characterized in that the manipulation resistance element comprises pins. Electronic lock according to one of the preceding claims, characterized in that the manipulation resistance element is designed as a network. Electronic lock according to one of the preceding claims, characterized in that a tactile trap is formed in the region of the blocking element. Electronic lock according to claim 8, characterized in that the Tastfalle comprises grooves.

Images