DE102018123060B4 - Locking element and tubular safe with such a locking element - Google Patents

Abstract

A closure element (4) for a tubular safe (1) having a tubular safe body (2), wherein the closure element (4) has an electronic lock with a first reading unit (21), a control unit (38), and a locking unit (39), wherein the first reading unit (21) is designed with first reading electronics (21a) and a first reading coil (21b) for detecting an unlocking request and controlling the control unit (38) to open the locking unit (39), characterized in that the closure element (4) has a second reading unit (40) with second reading electronics (40a) and a second reading coil (40b) for wirelessly detecting an identification code of a transponder element (12) coupled to the closure element (4) and located in the interior of the safe body (2), wherein the first reading unit (21) is arranged in the region of a tube-external end face of a housing (5) of the closure element (4) and the second reading unit (40) is arranged in the region of an end face of the housing (5) on the inside of the pipe, and in that the control unit (38) is configured to unlock the locking unit (39) when an identification code of an unlocking request, detected by the first reading unit (21), is released for an identification code of a transponder, detected by the second reading unit (40), and in that the housing (5) of the closure element (4) has an unsafe area towards the outside of the pipe and a safe area towards the inside of the pipe, wherein at least one anti-drilling protection element is present in the transition from the unsafe area to the safe area, wherein the control unit (38), the locking unit (39) and the second reading unit (40) are arranged in the safe area and the first reading unit (21) is arranged in the unsafe area, wherein the first reading unit (21) is connected to the control unit (38) via an encrypted data protocol.

Description

The invention relates to a closure element for a tubular safe having a tubular safe body, wherein the closure element has an electronic lock with a first reading unit, a control unit and a locking unit, wherein the first reading unit is designed to detect an unlocking request and to control the control electronics to open the locking unit.

The invention further relates to a tubular safe with a tubular safe body and such a closure element.

Tubular safes are used for the secure storage of objects, such as keys to a property where the tubular safe is located and accessible from the outside. Access is achieved by unlocking and removing a locking element using a master key or a special tubular safe key. The locking element forms a tubular safe plug.

EP 2 607 596 A2 discloses a tubular safe with a locking device having a locking element movable between a locking position and a release position and at least one electric or magnetic drive device cooperating with the locking element to move it between the locking position and the release position.

WO 2013/ 160 481 A1 Describes a tubular safe with an electronic lock that can be opened with an electronic key. The electronic key has at least two contacts for transmitting data and/or power to the electronic lock. The electronic key has an input keypad for entering an authorization code that is released for the electronic key by a control center.

WO 2015/ 055 344 A1 discloses a method for operating a locking system comprising an electronic key and an electronic lock, as well as a central unit that is locally separated from the electronic key and the electronic lock during locking operation. The central unit generates an external authorization code using an authorization code determination program, which is transmitted to the electronic key and stored there in a memory.

WO 01/ 52 199 A2 Describes a method for depositing goods in at least one locker, wherein a computer-controlled electronic locking system can be operated by an authorized user, for example, using a transponder chip via a transponder reader as an electronic key system. For this purpose, the locker system can have a high-frequency transmitter/receiver that reads a transponder chip of a good to be deposited in the locker, or its packaging or accompanying documents. The lock is activated to open the door of the locker to be loaded by evaluating the data from the transponder chip, and the locking system is activated for the removal of goods by the authorized user using an electronic key system, which can also be implemented using a transponder chip.

US 2015 / 0 102 903 A1 discloses a locker with a hinged door. Control electronics with RFID tag readers are installed in the locker. A closed door is detected by an RFID tag installed in the interior and an RFID tag antenna arranged on the inner surface of the door. When the door is closed, the antenna moves close to the RFID tag and reads it. Multiple RFID tag readers can be present, with one RFID tag reader located inside the locker and another RFID tag reader located outside the locker for reading RFID tags from parcel carriers.

US 2007 / 0 090 921 A1 discloses a locker with a key identification detector and a smart card connector. It proposes the possibility of restricting access to the locker based on its contents using a list of valid key identifications stored on a secure memory card or on an electronic key device. Access to the locker is granted based on the authorized keys. A PDA with special software, for example, can be used as the electronic key.

DE 10 2013 111 429 A1 discloses a locking system for a tubular safe with an electronic key in which an identification code and an allocation password are stored, and an electronic lock in which an identification code and an allocation password are also stored. The electronic lock is connectable to the electronic key via a contact set on the tubular body cover of the electronic lock and a counter contact set on the housing of the electronic key. The intended function is activated via a wired connection, in particular by transmitting the allocation passwords and identification codes between the central unit and the electronic key, as well as the electronic lock can be adjusted or replaced.

Based on this, it is the object of the present invention to provide an improved closure element and an improved tubular safe with a tubular safe body and such a closure element.

The object is achieved by the closure element having the features of claim 1 and by the tubular safe having the feature of claim 18. Advantageous embodiments are described in the subclaims.

It is proposed that the locking element have a further, second reading unit with second reading electronics and a second reading coil for wirelessly detecting an identification code of a transponder element coupled to the locking element, which is located, for example, in the interior of the safe body. This makes it possible, in conjunction with the detection of an unlocking request by the first reading unit, which has first reading electronics and a first reading coil, to read an identification code of an identification code of a further transponder linked to the locking element in temporal connection with the unlocking request. This can be, for example, a transponder of a key or key holder located and stored in the interior of the tubular safe.

This second reading unit then enables the assignment of a user identification code from the unlocking request to the identification code of the transponder element, for example, a key stored in the tubular safe. This assignment can be used as a criterion for opening the locking unit of the locking element. This makes it possible to determine whether the user initiating the unlocking request is authorized to use the object in the tubular safe marked with the identification code of the transponder element. Authorization approval can thus be linked not only to an assignment of the unlocking request to the locking element, but also to the transponder element.

With the help of the second reading unit, not only the unlocking request for opening and closing the locking element can be logged, but also the removal and replacement of an object linked to the transponder's identification code.

The first reading unit is arranged in the area of an end face of a housing of the closure element on the outside of the pipe, and the second reading unit is arranged in the area of an end face of the housing on the inside of the pipe. The first reading unit thus acts towards the outside of the pipe and can wirelessly receive an unlocking request from a transponder, radio transmitter, or radio transceiver located outside the safe body. The second reading unit, on the other hand, acts inside the safe body and can wirelessly detect an identification code of a transponder located in the area of the end face on the inside of the pipe. The first and second reading units can be electromagnetically separated from one another in such a way that a wireless radio signal intended for the first reading unit cannot be detected by the second reading unit or interferes with it, and vice versa.

A receiving opening for receiving, for example, a rod-shaped end of a transponder element can be provided in the end face of the housing facing the inside of the tube. The rod-shaped end of a transponder element can contain an identification transponder. A coil arrangement of the second reading unit can then be arranged in the interior of the housing behind the opening wall defining the receiving opening. This allows an identification transponder of a transponder element inserted into the receiving opening to be read in the near field when the rod-shaped end of the transponder element is inserted into the receiving opening. The transponder element can preferably have a fastening element for attaching an object to the transponder element, such as a key ring for receiving at least one key.

It is advantageous if a switching element is provided in or on the receiving opening for detecting a transponder element inserted into the receiving opening. The control unit is then configured to activate the second reading unit when the switching element is switched to read the identification code of the transponder element.

Such a switching element can be a mechanical switch or push-button. It is also conceivable, however, that the switching element comprises an electrical, electronic, magnetic, optical, or other sensor. Such a switching element can then detect whether or not the closure element carries a transponder element along with a properly linked object.

In this way, the switching element can be used to trigger the reading of the identification data of the inserted transponder element by the second reading unit.

Alternatively or additionally, the reading of the identification code of the transponder element with the second reading unit can also be initiated, i.e. triggered, by the detection of an unlocking request with the first reading unit.

The control unit is configured to unlock the locking unit when an identification code of an unlocking request detected by the first reading unit is enabled for an identification code of a transponder detected by the second reading unit. Thus, as already mentioned above, the identification code of the transponder linked to the locking element detected by the second reading unit is also used to enable unlocking of the locking unit of the locking element.

The first reading unit and the second reading unit can have different detection technologies for detecting identification codes. It is conceivable, for example, that the first reading unit is configured for wireless long-range radio reception and the second reading unit for short-range radio transponder interrogation. The first and second reading units can be configured for detection at different frequencies and/or with different communication protocols. It is conceivable that the first reading unit is configured for bidirectional radio data transmission and the first reading unit is configured for unidirectional wireless data reception, possibly in conjunction with an energy trigger signal emitted by the second reading unit for interrogating a passive transponder.

The first reading unit can be configured, for example, for radio communication using the Bluetooth communication standard, the WLAN communication standard, or similar, and the second reading unit can be configured for RFID transponder interrogation. This allows an unlocking request to be received from a mobile device, such as a smartphone, tablet computer, or similar. Optionally, using suitable application software on the mobile device, data can be transmitted back from the locking element via the mobile device to a central unit. This also makes it easy to establish a return channel.

The control unit, the locking unit, and the second reading unit are located in the secure area. The first reading unit is located in the unsafe area of the housing. The first reading unit is connected to the control unit via an encrypted data protocol to best prevent manipulation of the control unit and locking unit and/or the second reading unit from the unsafe area.

The locking unit can have at least one, and preferably two or more, actuators and locking pins coupled to each actuator. The actuators are preferably driven at different times. This has the advantage of avoiding energy peaks and thus significantly extending the service life of a battery or accumulator of the locking element.

The actuators can remain in the open position of the locking pins and do not require any power. The locking unit can also be designed so that the actuators are briefly moved to transition the locking pins from the open position to the locked position, and the locking pins are then held in the locked position by spring force. The locking element can be inserted into the safe body, with the locking pins then snapping back into the locked position in the locked position, counter to the spring force deflection.

It is advantageous if the housing has spring-loaded adjustment rollers on its outer circumference which, when inserted, engage in a circumferential adjustment groove of the tubular safe body and thus determine the desired position of the locking pins relative to a locking stop or a locking groove of the safe body.

The locking element can have a detection unit for detecting the locking state of the locking element when inserted into the safe body. Such a detection unit can, for example, have a coil arrangement and a measuring unit for measuring the damping of the coil arrangement as a measure of the locking state. However, it is also conceivable for the detection unit to have a light intensity sensor, a Hall sensor, an air pressure sensor, and/or an electromechanical switch. The detection unit can thus determine whether the locking element is inserted into the safe body or is located outside the safe body.

Optionally, it is also conceivable that the detection unit is also designed to detect the safe body in order to determine whether the locking element is inserted into the associated safe body. However, such detection of the assignment of the locking element to a safe body can also be carried out with the aid of the second reading unit. and a transponder connected to the safe body.

A closure cap can be provided on the end face of the housing, facing the outside of the tube. This closure cap then has a collar or projections to form a gripping element. This allows the closure element to be pulled out of the safe body or inserted into the safe body by grasping the closure cap. The closure cap can contain at least part of the first reading unit. Thus, the closure cap preferably also serves, for example, to accommodate the receiving antenna of the first reading unit, thus ensuring the most uninterrupted wireless reception of unlocking requests.

The housing can have a first diameter, starting from the outer end of the tube, followed by an intermediate section with a second housing diameter. The second housing diameter is smaller than the first and third housing diameters. The intermediate section creates a step that impedes the penetration of moisture into the safe body and simultaneously provides an end stop for the locking body when inserted into the safe body.

The control unit can be configured to transmit unlocking requests back to a central unit, along with time information for the respective unlocking request and the identification codes identified for each unlocking request, from transponders located on the locking element. This transmission back to the central unit can be effected, for example, by means of the first reading unit and a mobile terminal connected to the first reading unit. Alternatively or additionally, it is also conceivable for the transmission back to be effected by writing transmission back information to the transponder located on the locking element for later reading by a further reading unit connected to the central unit. Thus, if the transponder element located in the safe body and arranged on the locking element is removed together with the object, the transponder can communicate with another reading unit, for example, if another reading unit is passed in the object secured by the key. At this point, the retransmission information can then be transmitted to the central unit in order to transmit, for example, the unlocking request together with the associated user identification code and the time information as well as the transponder identification code identified with the unlocking request or a history of this retransmission information.

The closure element can be designed with the previously described features individually or in combination, even without the second reading unit.

A closure cap, which contains at least part of the first reading unit, can be arranged on the end face of the housing on the outside of the tube. The closure cap, which contains at least part of the first reading unit, can be screwed onto the housing and is replaceable. This allows the closure element to be easily modified by replacing the closure cap in order to implement different detection technologies depending on the type of first reading unit integrated into the closure cap.

The locking cap can be used as a handle to pull out and insert the locking element into the safe body.

The first reading unit can have a base unit that can be plugged into the closure cap, with the closure cap and the base unit being logically linked via identifiers. This ensures that the closure cap and the base unit only function with the specified base unit of the closure element if the identifiers are uniquely assigned.

The safe body can be closed on one side with an end wall. The safe body can then have a first tube diameter at the end section opposite the end wall, followed by an intermediate section with a second tube diameter. This intermediate section is then followed by a tube section with a third tube diameter. The second tube diameter of the intermediate section is smaller than the first and third tube diameters. The intermediate section thus creates a step in the safe body that makes it more difficult for moisture to penetrate the safe body. In addition, the intermediate section acts as an end stop when inserting the locking body, which can therefore only be inserted further into the safe body than the intermediate section. The transition between the second tube diameter of the intermediate section and the following larger third tube diameter provides a locking stop for the locking elements to reliably prevent the locking element from being pulled out when locked.

The cross-section of the safe body tube is, in principle, arbitrary. It can be circular (cylindrical safe body) or polygonal, for example.

• 1 - perspektivische Ansicht eines Rohrtresors mit Verschlusselement;
• 2 - Seiten-Schnittansicht des Rohrtresors aus 1;
• 3 - Seitenansicht eines Verschlusselementes mit darin eingestecktem Transponderelement;
• 4 - Seiten-Teilschnittansicht der Verriegelungseinheit des Verschlusselementes aus 1 bis 3;
• 5 - Teilschnittansicht eines ersten Gehäuseteils des Verschlusselementes mit Justierrollen;
• 6 - Frontansicht eines zweiten Gehäuseteils des Verschlusselementes mit Verriegelungseinheit;
• 7 - Teilschnittansicht des zweiten Gehäuseteils mit Verriegelungseinheit;
• 8 - Blockdiagramm der elektronischen und elektromechanischen Funktionseinheiten des Verschlusselementes;
• 9 - Seiten-Schnittansicht des rohrförmigen Tresorkörpers;
• 10 - Rohrtresor mit dem Tresorkörper und einer Explosionsansicht des Verschlusselementes.

The invention is explained in more detail below using an exemplary embodiment with the accompanying drawings. They show:

• 1 - perspective view of a tubular safe with locking element;
• 2 - Side section view of the pipe safe from 1 ;
• 3 - Side view of a locking element with a transponder element inserted into it;
• 4 - Partial side section view of the locking unit of the closure element from 1 to 3 ;
• 5 - Partial sectional view of a first housing part of the closure element with adjusting rollers;
• 6 - Front view of a second housing part of the closure element with locking unit;
• 7 - Partial sectional view of the second housing part with locking unit;
• 8 - Block diagram of the electronic and electromechanical functional units of the closure element;
• 9 - Side sectional view of the tubular safe body;
• 10 - Tubular safe with the safe body and an exploded view of the locking element.

1 shows a perspective view of a tubular safe 1 with a tubular safe body 2, which is closed at one end with an end wall 3. This end wall 3 is located in the installed state inside the wall of a building. Opposite the end wall 3, the tubular safe body 2 is open at the end and allows the insertion of a locking element 4. On the end face of the housing 5 of the locking element 4, which faces the outside of the tube, there is a locking cap 6, which has a smaller diameter than the diameter of the housing 5. At least part of a non-visible first reading unit 21 for wirelessly detecting an unlocking request is arranged in the locking cap 6. The locking cap 6 has a protruding circumferential collar 7. This allows the locking element 4 to be grasped after unlocking and pulled out of the safe body 2.

2 shows a side sectional view of the tube safe 1 from 1 with a partial section of the closure element 4.

It can be seen that a first reading unit 21 with reading electronics and, if applicable, a reading coil arranged remotely from it towards the outside is arranged in the closure cap 6. The closure cap 6 arranged on the end face of the housing 5 on the outside of the pipe forms a first part of the first reading unit 21. The first reading unit 21 also has a base unit 26 which can be connected to the closure cap 6 via connectors. The identification numbers released for authorized access and, if applicable, also blocked can be stored in the electronics of the closure cap 6, so that the replaceable closure cap 6 contains the information necessary for release. To prevent the closure cap 6 from simply being swapped and placed on another closure element 4, where it then functions without restrictions, it is advantageous if the closure cap 6 and the base unit 26 are logically linked to one another via identifiers. This ensures that a closure cap 6 can only interact with the base unit 26 for which it has been released by defining the identifiers. The base unit 26 also has a battery holder 23 for accommodating a battery or accumulator for the electrical supply of the electrical and electromechanical components of the closure element 4.

At least one connection plug, for example in the form of a multi-pin socket or plug, is arranged on the circuit board of the closure cap 6, which cooperates with a corresponding plug connector 25 on the second housing part 5b in order to thereby connect the first reading unit 21 by wire to a control unit 38 located on a further circuit board in the interior of the third and fourth housing parts 5c, 5d.

Also visible is the circumferential protruding collar 7 of the closure cap 6, which forms the closure cap 6 as a gripping element. The closure cap 6 is mounted on a base unit 26, which is installed in a cavity of the first housing part 5a of the housing 5.

The housing 5 of the closure element 4 can have an optional, circumferential sealing ring 8 on the outer circumference, which is positioned between the housing 5 and the inner wall of the tubular safe body 2 and prevents the penetration of moisture and other foreign bodies.

In the insertion direction, behind the sealing ring 8 and the closure cap 6, adjusting rollers 9 are arranged on the circumference of the housing 5. These rollers can be resiliently mounted and, when the closure element 4 is inserted into the safe body 2, engage a circumferential centering groove 10 provided on the inside of the safe body 2. This provides a defined locking position of the closure element 4 relative to the safe body 2, in which the bolts 16 of a locking unit 39 can engage a free space in the safe body 2 with as little force as possible.

In the second housing part 5b, the locking unit 39, formed from at least one actuator 28 and latches 16 coupled thereto, is installed, for example, in corresponding recesses in the second housing part 5b. Between a plunger of the latch 16 and the respective actuator 28 is a compression spring 31, which presses the latch 16 radially outward into the illustrated locking position when locked. To unlock, the actuator 28 is actuated and, by rotation, for example via a worm gear, moves the plunger with the latch 16 connected to it radially back into the interior of the second housing part 5b. There, the latch 16 then remains in the unlocked position, even if the actuator 28 is no longer supplied with power. The latches 16 can remain in the unlocked position for a preset time and then be moved back into the locked position with the aid of the actuators 28.

In the illustrated embodiment, two latches 16 are provided on opposite sides of the second housing part 5b, each with opposing servomotors 28. These two latches 16 are preferably actuated sequentially rather than simultaneously, in order to avoid peaks in energy consumption and extend the service life of the battery or accumulator.

A transponder element 12 is inserted into the housing 5 on the inner tube end face 11 of the housing 2 of the locking element 4. The transponder element 12 carries a key ring 13 to which a key 14 is attached. If the locking element 4 is then pulled out of the safe body 2, the transponder element 12 can be pulled out of the housing 5, if necessary after mechanical unlocking and release, in order to use the key 14 attached to it. During this time, the locking element 4 can be reinserted into the safe body 2 and locked without the transponder element 12 and the object attached to it (e.g., key 14).

3 shows a side view of the locking element 4 with the transponder element 12 inserted therein. It is clear that the housing 5 of the locking element 4 is composed of several cylindrical housing parts 5a, 5b, 5c, 5d, which are arranged one behind the other and connected to each other, for example, by means of screws. The screws can be machine screws with a conventional head (e.g., Phillips, slotted, Torx) or security screws with a security head.

It can be seen that the closure cap 6 is screwed onto a first housing body 5a with a first housing diameter GD1. This first housing part 5a carries the adjusting rollers 9 on its circumference, which can be designed, for example, as centering rollers or centering balls. Adjoining this first housing part 5a is a second housing part 5b, which has a second housing diameter GD2. This second housing diameter GD2 is smaller than the first housing diameter GD1 of the first housing part 5a. Arranged in this second housing part 5b is the locking unit 39 with bolts 16 projecting circumferentially in the locked state.

This second housing part 5b is followed by a third housing part 5c, which may have the same housing diameter GD2 as the second housing part 5b or, if necessary, an even further reduced or enlarged housing diameter GD. On the inside of the tube, the housing 5 is then closed by a fourth housing part 5d, which, together with the third housing part 5c, provides an interior space for accommodating a second reading unit.

4 shows a partial side section view of the closure element 4 from 1 to 3 .

It can be seen that a receiving body 18 is accommodated in the interior of the third and fourth housing parts 5c, 5d, which has a receiving opening 19, for example in the form of a bore, for receiving the rod-shaped end 20 of the transponder element 12.

It is clear that an electromechanical switch or button 32 (switching element) protrudes into the receiving opening 19 at the end of the receiving opening 19 of the receiving body 18. The switch or button 32 can interact with a spring-loaded reset element in order to automatically switch back when the transponder element 12 is pulled out.

A coil winding can then be provided on the outer circumference of the receiving body 18 with which an RFID transponder arranged in the interior of the rod-shaped end 20 of the transponder element 12 can be read wirelessly in the near field using high frequency. The second reading unit 40 can determine whether and, if so, which identification code of the transponder element 12 is coupled to the locking element 4. This allows a logical assignment of a key 14 to the locking element 4.

It is conceivable that the transponder element 12 is mechanically held in the receiving opening 19 and released only after verification of authorization. This can be achieved by electromechanically locking the transponder element 12 in the receiving body 18.

With the help of the switch 32, it can be detected whether a transponder element 12 is inserted into the locking element 4. This can trigger the reading of the transponder element 12.

5 shows a partial sectional view of the first housing part 5a with the four adjusting rollers 9, each arranged at an angle of 90 degrees around the circumference, each of which is accommodated in a roller body 35. A compression spring (not shown) can be located between the bottom of the roller body 35 and each adjusting roller 9 in order to urge the adjusting rollers 9 radially outward by means of spring force. For this purpose, it is also conceivable that another elastic or spring-elastic material is introduced into the space between the roller bodies 35 and the respective rollers 9.

6 shows a front view of the second housing part 5b with the locking unit 39, which has two counter-rotating and parallel actuator motors 28, which linearly displace the associated bolt 16 via a spindle drive. It is clear that a compression spring 31 is arranged between the bolt 16 and the actuator motor 28, which is used as a spindle for the linear displacement of the bolt 16 and simultaneously as a compression spring to push the bolt 16 out into the locking position by means of spring force, without the actuator motor 28 having to be actuated. Thus, the locking element 4 can be inserted into the safe body 2 in the locking position without actuating the actuator motors 28. The bolts 16 will initially move due to their 2 sketched inclined surface back into the second housing part 5b at least partially and then snap out into the locking position by means of spring force in order to then form a stop for a counter-stop on the safe body 2. The bolts 16 have a tubular extension in which the spindle formed from the compression spring 31 is received and guided on a thread.

7 shows a partial sectional view of the second housing part 5b with the locking unit 39. It can be seen that the compression springs 31 each extend into an associated latch 16. The actuator motors 28 are each coupled to a plunger which, when the motor shaft of an actuator motor 28 rotates, retracts the latch 16 toward the actuator motor 28 or releases it again in the opposite direction when the direction of rotation is different.

8 shows a block diagram of the electronic and electromechanical functional units of the locking element 4. A first reading unit 21 with first reading electronics 21a and a first reading coil 21b is provided to wirelessly detect an unlocking request from a transponder or a mobile device using near-field radio technology (NFC), near-field radio transponder interrogation RFID (e.g., with long-wave LW, short-wave KW, ultra-short-wave UHF, or microwave technology SHF) and/or wide-field radio technology (e.g., Bluetooth, WLAN, or similar). The first reading unit 21 can optionally also have several different technologies implemented, for example, to be controlled via communication with mobile devices on the one hand and via RFID transponder cards or keys on the other. This makes it possible to provide (release) different access routes for different user groups.

The first reading unit 21 is connected to a control unit 38, which may have a suitably programmed microcontroller or the like. The control unit 38 is connected to the locking unit 39 in order to control it. The locking unit 39 has at least one actuator 28 and the associated latch 16.

The control unit 38 is further connected to the second reading unit 40, which in turn has a second reading electronics 40a and a second reading antenna 40b, for example in the form of a coil 34 on the receiving body 18.

The control unit 38 is designed to check the access authorization of the unlocking request received by the first reading unit 21. It is further designed to detect, with the second reading unit 40, an identification code of a transponder 12 coupled to the locking element 4, i.e., a transponder 12 located in the interior of the safe body 2. The control unit 38 can then, on the one hand, be used to log the unlocking request and the identification codes of the transponder detected in temporal connection therewith. together with a time stamp. The control unit 38 is further configured to control the locking unit 39 in order to unlock it when authorization is recognized. Authorization can be determined exclusively based on the unlocking requests, in that the control unit 38 has a list of permissible user identifications, which is then compared with the user identification sent with the unlocking request. However, a further verification level is also conceivable, in which the user identification of the unlocking request is compared with the identification code of the transponder and it is determined whether the user is actually authorized to use the object associated with the identification code.

9 shows a side sectional view of the tubular safe body 2, which is closed on one side by an end wall 3 and open on the opposite side. The end section, which is opposite the end wall 3, has a first tube diameter RD1, which is followed by an intermediate region with a second tube diameter RD2. Towards the end wall 3, the intermediate region with the second tube diameter RD2 is then followed by a further region with a third tube diameter RD3. It can be seen that the second tube diameter RD2 in the intermediate region is smaller than the first tube diameter RD1 in the distal region and the third tube diameter RD3 in the proximal region, i.e. in the receiving interior of the safe body 2 leading to the end wall 3. This forms a stop 37 for the bolts 16 in the transition between the intermediate region with the second tube diameter RD2 and the third tube diameter RD3 in order to hold the locking element 4 in the safe body 2. The step from the larger first tube diameter RD1 to the smaller second tube diameter RD2 of the intermediate section also forms a stop for the closure element 4, preventing further insertion of the closure element 4 into the safe body 2. Furthermore, this step at the transition from the first tube diameter RD1 to the second tube diameter RD2 makes it difficult for moisture and foreign bodies to penetrate the receiving space of the safe body 2.

It is clear that an additional centering groove 10 can be introduced into the first tube section with the first tube diameter RD1, which, together with the centering balls 9, ensures the correct alignment of the locking element 4 in the insertion direction or longitudinal direction of the safe body 2 with respect to the stop 37 and the locking position of the bolts 16. This prevents the locking element 4, in the locked state, from being pulled out of the safe body 2 to such an extent that the bolts 16 abut against the stop 37, which would require increased force during unlocking. The centering groove 10 is thus adapted to the position of the stop 37 such that the bolts 16 of the locking element 4 do not abut against the stop surface 37 when the centering balls 9 engage the centering groove 10.

10 shows the tubular safe 1 with the safe body 2 and an exploded view of the locking element 4.

The closure cap 6 is intended for installation on a base unit 26 of the first reading unit 21 arranged in a cavity 24 of the first housing part 5a of the housing 5. The closure cap 6 is closed by a cover element 22, which, due to its larger diameter, forms a protruding, circumferential collar 7. The multi-part closure cap 6 contains a battery holder 23 in its center and two diagonally opposite connectors, for example in the form of sockets, onto or into which the connectors 25 of the upper part of the closure cap 6 can be plugged. At least one connection plug, for example in the form of a multi-pin socket or plug, can be arranged on a circuit board for the first reading unit 21 in the closure cap 6, which plug interacts with a corresponding plug connector 25 on the second housing part 5b in order to thereby connect the first reading unit 21 by wire to a control unit 38 located on a further circuit board 26 in the interior of the third and fourth housing parts 5c, 5d.

The circumferential sealing ring 8 can be inserted into a circumferential receiving groove 27 of the first housing part 5a.

In the first housing part 5a, four adjusting rollers 9, each arranged at an angle of 90 degrees around the circumference, are each accommodated in a roller body 35.

In the second housing part 5b, the locking unit 39, formed from at least one actuator 28 and latches 16 coupled thereto, is installed in corresponding recesses 29 of the second housing part 5b. Between a latch 16 and the respective actuator 28 is a compression spring 31, which pushes the latch 16, in the locked state, radially outward into the illustrated locking position. To unlock, the actuator 28 is actuated and, by rotation, for example via a worm gear, moves the latch 16 radially back into the interior of the second housing part 5b. The latch 16 then remains in the unlocked position, even if the actuator 28 is no longer supplied with power.

It can be seen that two latches 16 are provided on opposite sides of the second housing part 5b, each with opposing actuator motors 28. These two latches 16 are preferably actuated sequentially rather than simultaneously, in order to avoid peaks in energy consumption and extend the service life of the battery or accumulator. Other variants with more than two latches 16 and associated actuator motors 28 are conceivable.

The receiving body 18 is also visible in the interior of the third and fourth housing parts 5c, 5d. A circuit board for the second reading electronics 40a of the second reading unit 40 is arranged on the receiving body 18.

The described embodiment of the closure element 4 can also be designed in an optional variant without the second reading unit 40.

List of reference symbols

1

Pipe safe

2

Safe body

3

front wall

4

locking element

5

Housing

5a

first housing part

5b

second housing part

5c

third housing part

5d

fourth housing part

6

cap

7

collar

8

Sealing ring

9

Adjustment rollers

10

Centering groove

11

front side

12

Transponder element

13

key ring

14

Key

15

screws

16

Bar

18

receiving body

19

Receiving opening

20

rod-shaped end

21

first reading unit

21a

first reading electronics

21b

first reading coil

22

Cover element

23

Battery holder

24

cavity

25

Connector plug/connector

26

Base unit

27

Receiving groove

28

actuator

31

compression spring

32

switching element

34

Sink

35

roller body

37

stop

38

Control unit

39

Locking unit

40

second reading unit

40a

second reading electronics

40b

second reading antenna

GD1

first housing diameter

GD2

second housing diameter

RD1

first pipe diameter

RD2

second pipe diameter

RD3

third pipe diameter

Claims (19)

Closure element (4) for a tubular safe (1) having a tubular safe body (2), wherein the closure element (4) has an electronic lock with a first reading unit (21), a control unit (38) and a locking unit (39), wherein the first reading unit (21) is designed with first reading electronics (21a) and a first reading coil (21b) for detecting an unlocking request and controlling the control unit (38) to open the locking unit (39), characterized in that the closure element (4) has a second reading unit (40) with second reading electronics (40a) and a second reading coil (40b) for wirelessly detecting an identification code of a transponder element (12) coupled to the closure element (4) and located in the interior of the safe body (2), wherein the first reading unit (21) is arranged in the region of a tube-external end face of a housing (5) of the closure element (4) and the second reading unit (40) is arranged in the region of an inner tube end face of the housing (5), and that the control unit (38) is configured to unlock the locking unit (39) when an identification code of an unlocking request, detected by the first reading unit (21), is released for an identification code of a transponder, detected by the second reading unit (40), and that the housing (5) of the closure element (4) has an unsafe area towards the outside of the pipe and a safe area towards the inside of the pipe, wherein at least one anti-drilling protection element is present in the transition from the unsafe area to the safe area, wherein the control unit (38), the locking unit (39) and the second reading unit (40) are arranged in the safe area and the first reading unit (21) is arranged in the unsafe area, wherein the first reading unit (21) is connected to the control unit (38) via an encrypted data protocol. Closure element (4) according to Claim 1 , characterized in that in the end face of the housing (5) on the inside of the tube there is a receiving opening (19) for receiving a rod-shaped end (20) of a transponder element (12) which has an identification transponder, wherein a coil arrangement of the second reading unit (40) is arranged in the interior of the housing (5) behind the opening wall delimiting the receiving opening (19). Closure element (4) according to Claim 2 , characterized in that a switching element (32) is provided in or on the receiving opening (19) for detecting a transponder element (12) inserted into the receiving opening (19), wherein the control unit (38) is set up to control the second reading unit (40) when the switching element (32) is switched over for reading out the identification code of the transponder element (12). Closure element (4) according to one of the preceding claims, characterized in that the first reading unit (21) and the second reading unit (40) have different detection technologies for detecting identification codes. Closure element (4) according to Claim 4 , characterized in that the first reading unit (21) is designed for wireless long-range radio reception and the second reading unit (40) is designed for short-range radio transponder interrogation. Closure element (4) according to one of the preceding claims, characterized in that the first reading unit (21) has implemented several different detection technologies for detecting identification codes. Closure element (4) according to Claim 6 , characterized in that the several different detection technologies implemented in the first reading unit (21) are set up for wireless long-range radio reception and either for short-range radio reception or for short-range radio transponder interrogation. Closure element (4) according to one of the preceding claims, characterized in that the locking unit (39) has at least two servomotors (28) and locking pins (16) each coupled to the servomotors (28), wherein the servomotors (28) are driven at different times from one another. Closure element (4) according to one of the preceding claims, characterized in that spring-loaded adjusting rollers (9) are arranged on the outer circumference of the housing (5) of the closure element (5). Closure element (4) according to one of the preceding claims, characterized by a detection unit for detecting a closure state of the closure element (4) inserted into the safe body (2). Closure element (4) according to Claim 10 , characterized in that the detection unit has a coil arrangement and a measuring unit for measuring the damping of the coil arrangement as a measure of the closure state. Closure element (4) according to Claim 11 , characterized in that the detection unit has a light intensity sensor, a Hall sensor, an air pressure sensor and/or a button. Closure element (4) according to one of the preceding claims, characterized in that a closure cap (6) containing at least part of the first reading unit (21) is arranged on the end face of the housing (5) on the outside of the tube, the closure cap (6) having a collar (7) or projections for forming a gripping element. Closure element (4) according to one of the preceding claims, characterized in that a closure cap (6) containing at least part of the first reading unit (21) is arranged on the end face of the housing (5) on the outside of the tube, and in that the first reading unit (21) has a base unit (26) which can be plugged together with the closure cap (6), the closure cap (6) and the base unit (26) being logically linked to one another via identifiers. Closure element (4) according to one of the preceding claims, characterized in that the housing (5), starting from the end face on the outside of the pipe, has a first housing diameter (RD1), which is followed by an intermediate region with a second housing diameter (RD2), wherein a housing section with a third housing diameter (RD3) adjoins the intermediate region, wherein the second housing diameter (RD2) is smaller than the first and third housing diameters (RD1, RD3). Closure element (4) according to one of the preceding claims, characterized in that the control unit (38) is configured to transmit back unlocking requests together with time information of the unlocking requests and an identification code identified for the unlocking requests of a transponder located on the closure element (4) to a central unit by means of the first reading unit (21). Closure element (4) according to one of the preceding claims, characterized in that the control unit (38) is set up for the retransmission of unlocking requests together with time information of the unlocking requests and an identification code identified for the unlocking requests of a transponder located on the closure element (4) to a central unit by writing the retransmission information with the second reading unit (40) to the transponder located on the closure element (4) for later reading by a further reading unit connected to the central unit. Tubular safe (1) with a tubular safe body (2) and with a closure element (4) according to one of the preceding claims. Pipe safe (1) according to Claim 18 , characterized in that the safe body (2) is closed on one side by an end wall (3), wherein the safe body (2) has a first tube diameter (RD1) at the end section opposite the end wall (3), which is followed by an intermediate region with a second tube diameter (RD2), and wherein the intermediate region is followed by a tube section with a third tube diameter (RD3), wherein the second tube diameter (RD2) is smaller than the first and third tube diameters (RD1, RD3).

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