JPS60105777A - Locking apparatus due to electric signal - Google Patents

Abstract

1. Arrangement for operating locking devices by means of an electrical signal, which is formed by positive comparison of key information entered with preset lock information, and which activates an electromagnetic clutching device that enables actuation of the lock, by way of which a rotatable part, accessible from without, is connected to a rotatable part performing the actuation of the lock, in locking installations, especially of housing developments, with the rotatable part accessible from without being connected to the driving element of a clutch, on the one hand, and with that part of the electromagnetic clutching device, on the other hand ; the rotatable part performing the actuation of the lock being connected to the driven element of the clutch, and the other part of the electromagnetic clutching device being connected with a part that determines the position of the coupling element of the clutch, and that, when the part accessible from without is turned and the electromagnetic clutching device is activated, moves the coupling element into engagement with the driving element and the driven element, characterized by the rotatable part accessible from without - the driving shaft (1) - being positioned with its axis offset and parallel to the axis of the rotatable part performing the actuation of the lock - the driven shaft (6), the driving shaft (1) bearing a gearwheel (2), which is connected by way of a connecting gearwheel (3) with a gearwheel (5) that can revolve freely about the driven shaft (6), to which a disk (7) of low-retentivity material, forming the one part of the electromagnetic clutching device, is fastened so that it cannot twist, a pivoting piece (8), which bears a pivoting magnet (9), that forms the other part of the electromagnetic clutching device, being positioned around the driven shaft (6), the pivoted lever (8) being connected to the holding magnet (11) of a holding-magnet circuit, and the holding piece (13), as the other part of the holding-magnet circuit, being fixed to the housing, both the two parts, disk (7) and pivoting magnet (9), of the pivoting-magnet circuit and the two parts, holding piece (13) and holding magnet (11), of the holding-magnet circuit being ground to the smallest possible air-gap, the holding magnet (11) being energized and the pivoting magnet (9) being de-energized after the pivoting piece (8) swivels to the left or right, when a preset end-position is reached, the holding magnet (11), when energized, holding the pivoting piece (8) in its position relative to the housing at the time energized and for the duration of the energization, the pivoting piece (8) being returned to the zero position by springs when energization is ended, and a mechanical coupling of the driven shaft (6) to the gearwheel (5) resulting from the swivelling of the pivoting piece (8) in either of the two possible directions.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lock actuating device by means of electrical signals, and more particularly, to a lock actuating device by means of electrical signals, which can be mounted on doors equipped with well-known cylinder-operated locks and which facilitates manual operation of the key bolt and latching of such locks. The present invention relates to a device for use in connection with electrical signals for effectively controlling an electromagnetic clutch device with very low current inputs and in an advantageous safety and operational configuration of the entire locking device.

If we use West German Published Patent No. 3.218.112AI, we can achieve a very small current! Locking devices are known which can be controlled and operated more effectively and which can be used for a very long time with a small battery without having to replace the battery.

This solution consists of: 1 (a drive shaft coaxially guided through a driven shaft from outside the door into the mechanical lock itself or inside the door; together with the drive shaft the first gearwheel as well as one of the electromagnetic clutch devices); A disc constituting a member is provided, the driven shaft is provided with a second gear and a cam used for operating the key bolt and latch of a lock of known construction, and around the driven shaft 9, the structure of the drive shaft when energized is provided. A rotating plate is attached to support the other member of the electromagnetic clutch device, which is rotated by a disc element to a mechanical stop, and the electromagnetic clutch device is then rotated during further rotation of the drive shaft. It is based on moving to backlash.

Due to the rotation of the rotary plate, the third gear is brought into mesh with the two aforementioned gears by means of a different device, thereby connecting the drive shaft with the driven shaft.

The advantage of this solution over previously known solutions is that the electromagnet of the electromagnetic clutch device should not itself perform any movement work, but rather the cam and via it the key bolt and latch of the mechanical lock from the outside of the door. The purpose is to use gear connections to help transmit large forces. Accordingly, the magnet can be made very small and its action can nevertheless be achieved with a very small current input.

However, there are essentially six drawbacks to the solution described above.

First, electromagnetic clutch devices that use mechanical coupling of the gear drive must remain energized during the entire period of use since the gear drive would otherwise be disengaged again by the return spring. The bank lash that this inevitably causes between the two parts of the electromagnetic clutch device results in wear of said parts which limits the life of the entire device. Furthermore, the frictional force caused by the electromagnetic clutch device must be added to the lock operating force, so that additional force must be utilized by the operator when operating the lock.

Second, safeguards against other unauthorized uses must be further improved. In other words, the safety critical range of a mechanical lock lies in the range of the closing cylinder and that of the locking device. According to Kongming, the critical area in the use of a protective safety fitting is to reduce the closing cylinder itself, since this must necessarily be open for the insertion of the lock. Successful removal of the closing cylinder or part thereof by tampering (violence) removes any protection against illegal opening of the door. The described robbery hazards relating to mechanical locks are treated here in the same manner as they utilize a closing cylinder that is attached to well-known mechanical locks and is similarly susceptible to unauthorized use on the outside of the door. Applies to locking devices.

Third, the gears of the drive shaft are necessarily seen first from the inside of the door, and therefore the desired direct drive of the F driven shaft is not possible from the inside of the door.

The object of the invention is to provide a locking device which is secure against external tampering and against low battery voltages, can be operated mechanically directly from the inside of the door and is otherwise described above. The object of the present invention is to provide a locking device which possesses all the advantages of the above, is virtually wear-free and is easy to use with little force.

According to the present invention, a rotatable movable member that can be accessed from the outside, that is, a drive shaft is provided in the axial direction, and a rotary movable member that performs a locking operation, that is, a driven shaft that is disposed parallel to the axis of the drive shaft. The shaft supports a gear which is connected to a gear rotatably arranged around a driven shaft via a coupling gear, and the gear rotatably arranged around a driven shaft.
A disk made of a soft magnetic material constituting one member of the electromagnetic clutch device is attached non-rotatably, and a rotary plate is rotatably arranged around the driven shaft, and the rotary plate is connected to other parts of the electromagnetic clutch device. The rotating lever and the fixed magnet of the fixed magnet circuit are connected to each other, and the fixed plate is fixed to the case as another member of the fixed magnet circuit, and supports the rotating magnet forming the member. The parts, i.e. the circular rotary magnets, as well as the two parts of the stationary magnet circuit, i.e. the stationary plate and the stationary magnets, are processed with as little air gap as possible, so that when a predetermined end position is achieved, it is possible to move to the left or to the right. When the rotating plate rotates, the F fixed magnet is energized and the rotating magnet is deenergized,
fixing the rotary plate in relation to the case in a position occupied by the fixed magnet during energization and only for the duration of the energization, and at the end of the energization the rotary plate is returned to a neutral position by a spring;
The solution is that mechanical coupling of the driven shaft occurs in the gear wheel by pivoting the pivot plate in each of the two possible directions.

By the additional use of a magnet circuit with a locking action which deenergizes the magnet circuit with a rotational action when a certain rotational position is achieved, all problems caused by backlash previously generated are eliminated. From this, after achieving a non-rotatable connection between the driving and driven shafts, it is further satisfied in the particularly labor-saving and current use of an electromagnetic clutch device that allows further rotation of the force by means of a fixed magnet. Due to the axially arranged arrangement, the drive shaft is spatially separated from the driven shaft below the mechanical lock, so that the material wear between the disc and the rotating magnet is reduced to a minimum. You can be led away outside the door. The driven shaft engages the hollow shaft of the special closing cylinder from the inside of the door, thereby achieving a non-rotatable connection, and the special closing cylinder itself operates the key bolt and latch of the mechanical lock with its locking cam. do. Since this special closing cylinder is semi-cylindrical and has a connection not only on the inside of the door but also on the outside of the door, for safety reasons a sufficient solution is that the Kongming can be closed without any opening that is within the safety criticality. All safety critical ranges of mechanical locks and special closing cylinders on the outside of the door with steel plates with retentive parts are created. This solution is characterized in detail in claim 10.

The driven shaft, which is accessible on the interior side of the clutch device, provides the advantage that the lock can be operated mechanically directly from the inside of the door.

According to the invention, a precise and free locking of the cam is achieved. Furthermore, the connection task can be handled as effortlessly as in the original solution.

According to the invention, the fixed magnet automatically creates a current connection circuit when the desired rotational position is achieved.

According to the invention, a delay-free switching of the current from the rotating magnet to the fixed magnet is achieved in a very simple manner.

The invention provides a simple indication that the battery voltage is approaching a critical low point and that battery replacement is imminent. The user will be alerted to this need again in the event of this condition until corrective action is taken and the battery is replaced.

According to the invention, the advantage arises for safety reasons that, if necessary, the actuating member for directly mechanically driving the lock provided on the inside of the door can be disconnected and closed in this disconnected position.

It is important for safety reasons in doors with glass inserts, since the direct drive of the lock after breaking the glass insert and removing it inward might otherwise be operated. Furthermore, a sufficient position is created by the closable disconnection so that, if necessary, the release of the lock from the inside of the door can be prevented, so as to reliably prevent illegal access to the house, for example by a child.

According to the invention, it is possible to utilize a common mechanical closing cylinder for the closure of the internal operating member in the disconnected position and for safety against unauthorized new or modified codes of the locking device. This gives rise to the advantage of being able to do so.

According to the present invention, with respect to the known closing cylinder or lock, the safety critical range of the lock and closing cylinder can be effectively protected by the protected steel plate without opening each cylinder, so that it is not exposed to the outside. This results in a device that securely protects against forced opening attempts.

Further measures and their advantages will become apparent from the following description of embodiments of the invention.

In FIG. 1a, the clutch device is shown in a cross-sectional side view. A drive shaft 1, which can be driven from the outside of the door, is fixed to a gear 2. The gears 2 and 3 are permanently meshed, the gear 6 being rotatably mounted on the shaft 4 and used for force transfer and direction change. The gear 3 is free to rotate around the driven shaft 6. It meshes permanently at its sides with the gear 5 which is mounted so as to be able to do so. A disk 7 is non-rotatably attached to the gear 5, and the disk 7 is made of a soft magnetic material and constitutes one member of an electromagnetic clutch device that serves to rotate a rotating lever 8 made of a non-magnetic material. do.

The second member of the electromagnetic clutch device is preferably formed as a U-shaped magnet and has a spool (coil) for generating the magnetic flux.
10 is formed by a rotating magnet 9 that supports it.

When the x7'-rule 10 is energized, the magnetic flux flows back from one leg of the magnet to the other leg via the disk 7.

The disk is thereby pulled tightly to the U-shaped magnet.

The contact surfaces of the rotating magnet 9 and the disk 7 are treated with each other in such a way that the air gap between the two parts is very small.

Already at very small electrical excitations, this allows C
The larger magnetic flux and therefore the stronger attraction between the disc 7 and the rotating magnet 9 create a force.

The rotation of the shaft 1 simultaneously rotates the disc 7, and the rotating magnet 9, which is thereby excited, causes the rotating lever 8 to rotate by a predetermined angle.

A further fixed magnet 11, particularly U-shaped, which can be excited by a spool 12, is fastened to this pivot lever 8. The magnetic circuit of these magnets is closed by a plate 13 which is fixedly arranged in the case. However, it is also possible to arrange the fixed magnet 11 fixedly in the case and to fasten the plate 13 closing the magnet circuit to the pivot lever 8. Fixed magnet 11 and 2 plates 16
The contact surfaces of the two are similarly treated with each other such that the air gap between them is very small.

When the fixed magnet 11 is not excited based on the F disk 7 and the excited movable magnet 90 rotation due to the rotation of the rotation lever 8, a predetermined rotation angle is achieved in one or the other rotation direction. When the electric contact 14, '15 is actuated, it causes a switching of the current from the rotating magnet 9 to the fixed magnet 11. In addition, the rotating lever 8, which has been rotated 9 times, allows the current to flow through the spool 1.
It is held in its occupied position for the limit case lasting through 2. The attraction force between the disc 7 and the rotating magnet 9 is maintained. The disc 7 can thereby be continued without force.

By disconnecting the current from the spool (coil) 12, the force of attraction between the fixed magnet 11 and the plate 1'5 is reduced. The pivot lever 8 is returned to the exit position by a spring (not shown).

As shown in FIG. 1b, the pivot lever 8 is
starting ramp 16.17.18.1 which further axially displaces the plate 20 arranged coaxially with respect to the rotation of the
9. An axial movement of the plate 20 is realized by rotation of the pivot lever 8 due to the non-rotatable coupling of the plate 20 in the vicinity of the case by means of a bracket 21.

FIG. 2 shows the device for connecting the driven shaft 6 to the gearwheel 5 and thus to the drive shaft 1 in detail. The movement of the plate 20 axially upwards causes the cam 22 mounted in the slot of the shaft 6 to be moved upwards against the force of the spring 23 so as to fully engage the pin 24 connected to the gearwheel 5. A connection between the drive shaft 1 and the driven shaft 6 is thereby achieved, via which very large forces can be transmitted.

In order to prevent the cam 22 from being mounted on the pins 24 during upward movement of the plate 20 and the concomitant movement of the cam 22, a gear wheel is provided so that the cam 22 is always pushed into the free space between the pins 24. Only in such an angular position of the driven shaft B associated with 5 does a power supply for the rotating magnet 9 occur.

This is achieved by connecting the ends of the windings of the spool 10 with the case and also with the mass.

The power supply at this end of the winding occurs on a plate 25 which is insulated and mounted to the case. A further insulating member 26 is provided between the plate 25 and the disc 7, which is connected to the shaft 6 and can be rotated in the opposite direction thereby. In the two cavities of this insulating member 26 contact springs 27 are arranged which effect a current transfer from the plate 25 to the disk 7 and thus to the spool 10. Disk 7
supports an insulating layer forced onto that segment on its side facing the contact spring 27 where it is not desired to supply power to the spool. This ensures that the spool 10 can only be biased in that angular range of the gear 5 relative to the shaft 6 in which the raising of the cam 22 is possible without hitting the pin 24.

FIG. 6 shows in detail the current circuit for energizing the spools 10, 12 of both magnets 9, 11.

The switch 28 is formed by electronics in which, by entering the correct code, the power supply 29 is switched to the spool 10 of the rotating magnet 9. By closing the switch 28, the stain current is connected to the resistor 60, the spool 10 and one or more forwards. The current flows backward through the diodes 31 and 32 for the power supply 29.

Due to the rotation of the disc 7 under the bias of the rotary magnet 9, the rotary lever 8 is thereby rotated until one of the switches 14 or 15 is closed. Current thereby flows through the spool 12 of the fixed magnet 11.

The resistances of spools 10 and 12 are in conjunction with resistor 60 and the threshold voltage formed by diodes 31, 32 is such that current flow through spool 12 causes the current through spool 10 to continue to fall to zero. In this way, a delay-free switching of the current from the rotating magnet 9 to the fixed magnet 11 is achieved by simple means. The rotating magnet 9 performs the effect obtained on the disc 7 for a long time so that the current through the spool 10 is sufficiently thick.

For example, a drop in battery voltage to half of the rated voltage will cause
A situation gradually arises in which the current through the spool 10 is insufficient to generate the magnetic flux of the rotating magnet 9 necessary for the synchronization of the discs 7. In order to temporarily increase the current flow again in this case, a switch 63 is connected in parallel to the resistor 60.

This switch is the key 64 indicated by "Reserve".
The resistor 30' is closed by the key 3, so that the resistor 30' performs without current limiting action and the current flow is restricted to the key 3.
Increased for a closing time of 4. That is very advantageous for avoiding problems due to low battery voltage and at the same time very useful for indicating to the user that the battery needs to be replaced.

This key '54 can be integrated into the current code entry keyboard of the locking device. In this case, key 64 is at the same time the operative key of this keyboard and, in addition to its operative designation as a code input element, has the designation "reserve".
support.

FIG. 4 shows the overall structure of a locking device with a closing cylinder and a clutch device with a moving shaft. The entire safe neutral range is covered by a steel plate 55 screwed onto the inside of the door.

By means of a small opening in the lower area of this steel plate, the shaft 1 is guided below the lock and thus outside the door in a safe neutral range. Via the shaft 1, the rotational movement of the rotating magnet of the clutch device 36 during activation is guided in the correct direction of rotation within the cylinder 37. When the clutch device 36 is not energized, the shaft 1 can rotate freely.

The shaft 1 is non-rotatably connected via a rotation knob 68 and an intermediate shaft 69. By appropriate selection of the intermediate shaft 39, which consists of a set of stepped length shafts, the locking device can be advantageously adapted to the thickness of each door during subsequent installation.

The driven shaft 6 is accessible from the rear side of the clutch device 36 and thereby allows direct actuation of the closing cylinder 37 by means of the actuating member 40 from inside the door.

This is the inner metal fitting 4 that covers all the components inside the door.
1 and mounted so that it can be rotated and pulled down against a spring force. A mechanical connection is maintained in the clutch device 36 by lowering the actuating member 40 by a few millimeters.

The operating member 40 and the clutch device 3 are connected by a mechanical lock 42.
A rotatable plate 43 located on the clutch device 3B between the
can be closed. The engagement of the actuating member 40 is thereby maintained continuously by the clutch device 367.

Another solution for decoupling the fixed, non-pullable actuating member 40 from the driven shaft 6 is to include in the actuating member 40:
It consists of incorporating a coupling plate, not shown, which engages the slotted shaft 6 and has a side surface that is pressed by a spring in the operating member 4C.

Operation ifB material 4 where the connecting plate is perpendicular to the ridge plate 4
In the correct position 0, the coupling plate limited by the sides slides into the operating member 40 by means of the deflection plate 43. The connection of the actuating member 40 at the shaft 6 is thereby maintained.

The cover plate 46 is designed in both solutions to be closable in its covering pivot position by means of a mechanical lock 42, preferably a closing cylinder. The same closing cylinder can additionally be provided as a programmable cylinder, in which case the user of the locking device can activate the locking device as soon as he brings the lock of this closing cylinder to a certain other position. It is particularly advantageous that the key information stored as a code can be inserted or even changed. First, when a switch (not shown) is operated in this position, the program switching means (not shown in detail) is effectively switched only in the closed state.

The closing cylinder 37, which is inserted into the lock 44 and produces the movement of the key bolt, has a hollow shaft 46 with a cam groove in which a closing/opening cam 45 is fastened. The driven shaft 6 projects into this hollow shaft and transmits the rotational movement from the driven shaft 6 to the closing/opening cam. The insertion depth of the driven shaft 6 within the hollow shaft 46 is variable over a predetermined distance. Thereby, the same closing cylinder and clutch device can be advantageously implemented on doors with different door thicknesses.

FIG. 5 shows the embodiment of the special closing cylinder 67 in detail. A hollow shaft 46, which is fixed to the cam 45, is inserted into the cylinder body in such a way that it can only be accessed on one side. The other side of the cylinder is closed and protected against drilling by a steel bin 47. The embodiment of FIG. 5 is formed as an airfoil cylinder.

However, it can equally well be implemented in round or oval dimensions or in other appearances.

[Brief explanation of the drawing]

Figures 1a and 1b are a sectional side view and a sectional plan view showing a device for coupling the drive shaft to the driven shaft, Figure 2 is a partial sectional view showing details of the shaft coupling, and Figure 5 is a rotating magnet. 4 is an exploded view showing the overall arrangement of the locking device; FIG. 5 is a partial sectional view showing the special cylinder. In the figure, 1 is a drive shaft, 2, 3.5 are gears, 6 is a driven shaft, 7 is a disc, 8 is a rotating plate (lever), 9 is a rotating magnet, 1
0.12 is the spool (coil), 11 is the fixed magnet, 15
is a fixed plate, 14.15 is a switch, 16, 17, 18.
19 is the starting slope, 2G is the plate, 22 is the cam, 24 is the bottle,
25 (is a plate, 26 is an insulating material, 27 is a contact, 30 is a resistor, 31.32 is a diode, 36 is a transistor switch, 54 is a key switch, filter 5 is a steel plate, 37 is a closing cylinder, 40 is an operating member, 42 is a lock, 43 is a security board, 4
4 is a lock. D9-Sugo'neewa2infil positive';:! -7- (method)%
Expression% Special 6'1 Agency Officer Tedomirso Yumi ρ Den 1,:Ii,”
, display of 1981 'l'l H' (application no. 1958.66 2,
Name of the invention Electricity A:: Lock actuating device by the number 3, Relationship with the person making the amendment A'1: 1 Evil'1 Name of applicant Pierre May A7-S (1 idiot) 4, Agent A1 Location 3F1 Kasumigaseki, Chiyo E1-ku, Tokyo 100. ．．
]2nd 5th Kasumigaseki Building 29fl! i Kasumigaseki Building Post Office Private Box No. 49] Pitying Light and F'F'Al 2-door Telephone (58
1)-9GO1 (representative) 6. Correction glue・19 pieces

Claims (1)

[Claims] (1) Particularly in locking devices for residential buildings, it is difficult to accurately match assigned key information with pre-assigned locking information.
A rotary movable member that is formed and that is accessible from the outside through which the electromagnetic coupling device that enables the locking operation is effectively controlled is connected to the rotary movable member that performs the locking operation, and in this case that the rotary movable member is accessible from the outside. A rotatable movable member is connected to a driving element of the clutch joint on one side and a member of an electromagnetic clutch device on the other hand, and a rotatable movable member for performing the locking operation is connected to a driven element of the clutch joint and a member of the electromagnetic clutch device on the other hand. a member is connected to a member for determining the position of a coupling element of the clutch joint, the rotation of the externally accessible member and the engagement of the coupling element with the drive element and the driven element in an effectively controlled electromagnetic clutch arrangement. In a lock operating device using an electric signal for operating a locking device by an electric signal, the rotatable movable member accessible from the outside, that is, the drive shaft is provided in the axial direction and the rotatable movable member for performing the locking operation is provided. a member, i.e., a gear disposed parallel to the driven shaft; the drive shaft supports a gear connected to an NFC gear rotatably disposed around the driven shaft via a coupling gear;
A disc made of a soft magnetic material constituting one member of the electromagnetic clutch device is non-rotatably attached to a gear rotatably arranged around the driven shaft, and a rotary plate is mounted around the driven shaft. arranged rotatably,
The rotary plate supports a rotary magnet forming another member of the electromagnetic clutch device, the rotary lever (plate) and a fixed magnet of a fixed magnet circuit are connected, and the fixed plate supports a rotary magnet forming another member of the electromagnetic clutch device. Both members of the rotary magnet circuit, that is, the disc machining and the rotary magnet, and both members of the fixed magnet circuit, that is, the fixed plate and the fixed magnet.
with as little air gap as possible, the rotation of the rotary plate to the left or right energizes the fixed magnet and deenergizes the rotary magnet when a predetermined end position is achieved; When energizing, the rotary plate is fixed in relation to the case in a position occupied by the fixed magnet at the time of the energization and only for the duration of the energization, and at the end of the energization, the rotary plate is moved to a neutral position by a spring. Lock actuating device by electric signal, characterized in that mechanical coupling of the driven shaft occurs at the gear by rotation of the rotary plate in each of two possible directions. (2) The rotation of the rotating plate due to the starting tilt causes another plate to move in the axial direction, and is similarly moved in the same direction by means of a cup disposed non-rotatably and movably in the axial direction on the driven shaft. 2. A lock actuating device according to claim 1, characterized in that it engages a pin and establishes a connection of said driven shaft with respect to said gear in said gear. (8) The electric power supply from the plate to the insulating member connected to the driven shaft with the inserted contacts is on and associated with the segment-shaped insulated disc on the side facing the insulating member. Claims 1 and 2, characterized in that free engagement of the cams between the pins is possible only at the position of the driven shaft relative to the gear on the case machining spool. A lock operating device using an electric signal according to item 2. (4) The electric signal according to claims 1 and 2, wherein the rotating plate operates each switch that causes current to flow through the fixed magnet in two possible rotational positions. (5) The spool of the rotating magnet is connected in series with the spool of the rotating magnet, and the spool of the stationary magnet is connected in parallel to the spool and the diode by the switch, Claims 1, 2 and 2, characterized in that a resistance is assigned in connection with the resistances of both said spools such that the current through the spools of the dynamic magnet is dropped to a very small value. 4. A lock actuating device according to an electric signal according to claim 4. (6) A transistor switch is arranged in parallel with the resistor, and the transistor switch is connected by a key switch. 0 (7) The key switch is at the same time an operating key of the code input keyboard of the locking device, and this operating key has a designated "reserve" in addition to its operating designation. 7. A lock actuating device based on an electric signal according to claims 1 and 6, characterized in that the device supports the following. (8) The driven shaft is releasably connected to a rotatably movable operating member that can be accessed from the inside of the door, and the rotatable protection plate that can be accessed from the inside of the door is connected to the driven shaft with the operating member in its rotational position. 2. The lock operating device according to claim 1, wherein the shaft is prevented from being releasably connected, and the rotating position of the protection plate is configured to be lockable. (9) The rotational position of the protection plate is lockable with a mechanical lock attached to the inside of the door;
' The mechanical lock allows the locking device to be operated in one or more other closed positions of the key so as to change or newly store key information stored as a code of the locking device. Claim 1 characterized in that
A lock actuating device using an electric signal according to Items 1 and 8. (10) The driven shaft is non-rotatably connected to the closing cylinder inside the door, and the safety critical area of the closing cylinder and the lock is protected by a steel plate that penetrates the outside of the door and is free to open in the safety critical area. A lock actuating device based on an electric signal according to claim 1, characterized in that the lock actuating device is covered with an electric signal.