EP2487311B1 - Safety lock - Google Patents

Description

The invention relates to a security lock, in particular a heavy authority lock, with a locking mechanism, cooperating with the locking mechanism lock bolt, a hand-operated drive for actuating the lock bolt and a bolt lock which locks the movement of the lock bolt in the blocking position, wherein the bolt lock is a pivotally trained lever , which is actuated by an electric drive and engages in its blocking position with a lock bolt side formed locking lug in a correspondingly formed recess in the lock bolt.

Heavy security locks have a lock bolt, which can be moved from an open position to a closed position and vice versa. To operate the lock bolt a manually operated drive is provided, However, it can be locked in the locked position, the movement of the lock bolt by a bolt lock.

However, it has been shown that the bolt lock can be solved by targeted shocks and then an opening of the lock bolt on the hand-operated drive is possible.

The DE 20 2010 013 880 U1 discloses a heavy security lock, in particular a heavy authority through lock, with a four-way from his open position into a closed position lock bolt.

The EP 0 974 719 A2 discloses a lock, in particular for a locking system, with in a inside of a door of a locker or the like fixed housing displaceable by a door outwardly projecting rotary handle bolt, with an electrical control of a locking auxiliary element to release the closing operation, wherein the locking auxiliary element is a guard locking one is the latch return displacement controls lockable position in a releasable position, wherein the auxiliary locking element is displaceable by an electromagnet from a door lock not enabling first position in a door lock enabling second position, wherein the control is carried out via a dead center displacement of a transmission spring.

The invention is based on the object, a security lock of the known type to that effect improve that a bolt lock can not be overcome by manipulation.

This object is achieved in a security lock according to claim 1.

Further developments and advantageous embodiments will become apparent from the dependent claims,

According to the solution according to the invention, a transmission is arranged between the bolt lock and the electric drive, wherein the transmission is a drive and blocking member which is also pivotally mounted on the pivotally shaped lever of the bolt lock at a distance from the stationary pivot axis and wherein the drive and blocking member consists of a circular disc which is pivotable about its center, wherein the bolt lock by pivoting the disc about the center of the disc from an unlocked position into a blocking position and vice versa can be transferred and is additionally blocked in the blocking position against pivoting.

The transmission thus ensures that, starting from an unlocked position, the bolt lock is first transferred to a locked position and then, by continuing to run the electric drive, a blockage against pivoting in the opposite direction is additionally brought about.

When reversing the direction of the electric drive, a blockade against pivoting the bolt lock is first repealed and then transferred the bolt lock from the locked position to the unlocked position.

According to the invention, the transmission is a drive and blocking member which is on the pivotally designed lever of the bolt lock at a distance from the stationary pivot axis just-mounted pivotally.

Preferably, the drive and blocking member has a recess which engages a stationary pin. The electric drive is coupled to a drive point with the drive and blocking member. The articulation is relative to the arranged on the pivotable lever of the bolt lock and thus movable pivot axis of the drive and blocking member of the recess opposite or is arranged at an obtuse angle to the position of the recess. The drive and blocking member is pivotable in the blocking position of the bolt lock in a blocking position, in which a blocking surface of the drive and blocking member can be converted into a position relative to a stationary abutment surface.

By the articulation of the electric drive on the drive and blocking member in conjunction with the pivot axis of the pivotally designed lever of the deadbolt and in conjunction with the recess results in a translation of the force expended by the electric drive force on the force exerted on the lever of the bolt lock. In addition, as soon as the bolt lock is in the blocking position, the drive and blocking member can be further pivoted and then enters a blocking position. In the blocking position, a blocking surface of the drive and blocking member is located opposite a stationary stop surface.

Due to the smaller radius between the pivot axis of the drive and blocking member and the blocking surface with respect to the radius between the pivot axis of the pivotally shaped lever of the bolt lock and the blocking surface, the drive and blocking member remains freely movable relative to the stop surface, while the pivotally designed lever of the bolt lock but is prevented from swinging back.

The stationary pin can be arranged axially on the stationary pivot axis of the pivotable lever of the bolt lock.

This results in a maximum for the torque on the pivoting lever of the bolt lock.

According to the invention, the drive and blocking member consists of a circular disc which is pivotable about its center.

At one edge of the disc, the recess and opposite the recess, a flattening is present. The articulation point of the electric drive lies on a connecting line between the center and the blocking surface.

By choosing a disk results in a balanced mass distribution around the pivot axis of the disc. Tampering attempts to swing the disc by force pulses on the security lock and so lift the blocking position of the deadbolt are therefore unsuccessful.

The bolt lock can also be unblockable and pivotable by means of a blocking slide engaging with the locking mechanism.

As a result, the deadbolt lock can be released via the locking mechanism if the electric drive should be inoperative.

For manual mechanical actuation, the drive and blocking member can carry an actuating means, preferably in the embodiment of a pin, with which the locking slide cooperates via a ramp.

In order to open the lock bolt in case of emergency even with dormant electric drive can be triggered by the locking slide on the actuating means of the same movement for unblocking and opening the bolt lock, as he is otherwise made by the electric drive.

The electric drive preferably has an electric motor and a rotary-linear converter which couples the electric motor to the transmission.

As a result, the rotational movement of the electric motor connected to a power transmission is converted into a lifting movement and can act directly on the bolt lock or its drive and blocking member.

The rotary-to-linear converter may comprise a rotatable coil spring which engages with a rotatable coil spring, coupled to a linearly movable actuating rod connected pin.

The spring makes it easier to start the electric motor because it does not yet apply a counter-torque in the start-up phase. The counter moment only arises in the final phase and helps to shorten the follow-up time of the electric motor. In addition, the spring equals differences between the predetermined by the electric motor drive path and the reaction path of the bolt lock or their drive and blocking member compensate.

The bolt lock can be mechanically transferred by means of the locking slide and / or electromechanically by means of the electric drive from the blocking position to the open position.

The invention is applicable not only to heavy authority locks but also to simple locks in the commercial and private sector.

Fig. 1

in schematischer Darstellung das erfindungsgemäße Schloss in Verschlussstellung,

Fig. 2

das Schloss nach Fig. 1 in Offenstellung

Fig. 3

als Detail aus Fig. 1 eine Riegelsperre in entriegelter Position,

Fig. 4

die Riegalsperre in einer ersten Zwischenposition,

Fig. 5

die Riegelsperre in einer zweiten Zwischenposition und

Fig. 6

die Riegelsperre in verriegelter und blockierter Position.

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

Fig. 1

in a schematic representation of the lock according to the invention in the closed position,

Fig. 2

the castle after Fig. 1 in open position

Fig. 3

as a detail Fig. 1 a bolt lock in unlocked position,

Fig. 4

the Riegalsperre in a first intermediate position,

Fig. 5

the bolt lock in a second intermediate position and

Fig. 6

the deadbolt lock in locked and locked position.

The FIGS. 1 and 2 each show in a schematic representation of the lock 1 according to the invention, wherein Fig. 1 the lock 1 in closed position and Fig. 2 the lock 1 in the open position shows.

The lock 1 according to the invention has a lock case 2 in a manner known per se. This lock is closed on the face side by means of a forend 3. In the final assembled state, the lock case 2 is inserted into a correspondingly shaped receiving pocket of a door leaf and the forend 3 is screwed to the door leaf, for which purpose the forend 3 has corresponding bores 43.

The lock 1 has a lock bolt 4. This lock is preferably formed in one piece from a bolt head 5 and a lock body 6. With reference to the drawing plane after the FIGS. 1 and 2 is the lock bolt 4 from the open position according to Fig. 2 to the left in the closed position according to Fig. 1 or in the reverse manner from the closed position according to Fig. 1 to the right in the open position according to Fig. 2 traversable. In the closed position according to Fig, 1 engages the lock bolt 4 when the door is closed with his bolt head 5 in a correspondingly formed recess of a closing plate not shown in the figures. Opening the door is then not possible. This is only possible if the lock 1 according to its closed position Fig. 1 in its open position according to Fig. 2 is transferred, ie the lock bolt with respect to the drawing levels after the FIGS. 1 and 2 moved to the right. Then the bolt head 5 no longer engages in the associated recess in the strike plate, so that an opening of the door, not shown in the figures is possible.

The lock 1 has a hand-operated drive 21, by means of which the lock bolt 4 from its closed position in accordance with Fig. 1 in its open position according to Fig. 2 can be transferred. The drive 21 has a bolt slide 44 and a cooperating actuating slide 22nd

The latch slide 44 and the actuating slide 22 hold tooth profiles 23, 47 ready. This tooth profile 23, 47 cooperate with a gear 19. The gear 19 in turn carries a square hole 20. In the final assembled state of the square hole 20, a lock 1 penetrating drive shaft is received. The drive shaft is equipped on both sides with a handle, for example in the embodiment of a rotary knob.

In the actuation case, one of the two actuating handles is gripped by a user and for the transfer of the lock bolt 4 from the closed position according to Fig. 1 in the open position according to Fig. 2 twisted clockwise. As a result of this twisting movement also the gear wheel 19 rotates. With reference to the drawing planes after the FIGS. 1 and 2 Upwardly or downwardly movable actuation slide 22 moves upward as a result of this rotational movement of the toothed wheel 19, whereby the force transmission takes place via the tooth profile 23, which meshes with the toothed wheel 19 in a meshing manner. The actuating slide 22 also moves as a result of the rotational movement of the gear 19 with respect to the drawing planes after the FIGS. 1 and 2 however, from left to right or in the opposite direction. In the end, therefore, the rotational movement of the toothed wheel 19 initiated by one of the handles is converted into a displacement movement of the locking slide 44, the locking slide 44 corresponding to the direction of rotation of the toothed wheel 19 with respect to the drawing planes according to FIGS FIGS. 1 and 2 is moved either from left to right or from right to left.

The locking slide 44 is connected to the locking body 6 of the lock bolt 4 in a force-transmitting manner. A movement of the bolt slide 44 is thus transmitted to the lock bolt 4. An introduced via the drive 21 rotational movement the gear 19 leads to a displacement movement of the lock bolt. 4

The lock bolt 4 is subjected to a force by a spring 7, which is supported on the lock case 2. The spring 7 is located at extended lock bolt 4, ie in the closed position of the lock bolt 4 according to Fig. 1 in a relaxed position. If a movement of the lock bolt 4 in its open position according to Fig. 2 , so the spring 7 is tensioned, so that the lock bolt 4 in its open position according to Fig. 2 is under spring preload.

In this position, the lock bolt 4 is held by a pawl 12. This is designed as a pivotable lever, wherein a first lever arm 13 and a second lever arm 14 are provided. The lever arm 13 is formed lock bolt side. The second lever arm 14 is connected to a pin 11 of a release means 9 in connection. A pivoting movement of the pawl 12 takes place about a formed between the first lever arm 13 and the second lever arm 14 axis of rotation 15 instead of in the open position of the lock bolt 4 according to Fig. 2 engages the pawl 12 with a arranged on the first lever arm 13 locking lug 16 in one of the lock bolt 4 provided Recess a. In this position, the pawl 12 holds the lock bolt 4, thus preventing a method of the lock bolt 4 with respect to the drawing levels after the FIGS. 1 and 2 to the left due to the force acting on the lock bolt 4 spring force.

The lock 1 has a release means 9, also called a tax trap. This release means 6 in turn has a head portion 10 and a pin 11 which are interconnected via a slot arrangement. The head section 10 extends through a recess formed in the forend 3, as shown in FIG FIGS. 1 and 2 reveal. The pin 11 cooperates with the already explained pawl 12, The entire release means 9 is arranged longitudinally displaceable in the lock case 2, with respect to the drawing planes after the FIGS. 1 and 2 slidably arranged from left to right or from right to left.

The function of the release means 9 is the following: As a result of a closing movement of the lock 1 bearing the invention, the head portion 10 of the release means 9 runs on a corresponding abutment provided by the frame-side striking plate. As a result, the procedure moves Release means 9 with respect to the drawing planes after the FIGS. 1 and 2 to the right. As a result of this movement, there is a pivoting of the pawl 12 about the axis of rotation 15 in a clockwise direction, with the consequence that carried by the first lever arm 13 of the pawl 12 locking lug 16 from the recess 17 of the lock bolt 4 herausverfährt. The lock bolt 4 is then released, which due to the force acting on the lock bolt 4 spring force to an automatic extension of the lock bolt 4 with respect to the drawing levels after the FIGS. 1 and 2 leads to the left. It finds insofar an automatic transfer of the lock bolt 4 from the open position Fig. 2 in the closed position after Fig. 1 instead of. The lock 1 according to the invention can also be referred to as an automatically closing lock 1.

Due to a threaded rod-threaded nut connection between the head portion 10 and pin 11, the release agent 9 can be adjusted to the given at the installation gap gap in an advantageous manner. A reliable operation of the release means 9 is ensured.

A return transfer of the lock bolt 4 from the closed position according to Fig. 1 in the open position according to Fig. 2 is possible only after prior release by means of the barrier 18. The locking mechanism 18 may be a conventional profile cylinder.

In the closed state of the lock 1 according to Fig. 1 is a traversing movement of the lock bolt 4 prevented by a locking catch 25 engages with a locking arm 29 arranged at one end of an arm 27 in a corresponding recess 30 of the locking body 6 of the lock bolt 4, as can be seen in particular from the illustration Fig. 1 results, in this position, the bolt lock 25, a method of the lock bolt 4 is not possible, ie, a transfer of the lock bolt 4 from the closed position according to Fig. 1 in the open position according to Fig. 2 is stopped.

The bolt lock 25 is designed as a lever which is pivotable about a pivot axis 26. The lock bar 25 has an arm 27 and a lever extension 28. At the other end carries the arm 27 already vorerläuterte locking lug 29 which engages in the closed position of the lock 1 in the recess 30 of the lock body 6 of the lock bolt 4. A Operation of the bolt lock 25 is preferably via an electric drive 34. However, the electric drive is not directly coupled to the arm 27 of the bolt lock, but via a transmission.

The illustrations of the FIGS. 3 to 6 Details of the deadbolt 25. Based on different positions, the functionality is explained.

On the arm 27 of the bolt lock is coupled to the electric drive 34 gearbox. This gear comprises a drive and blocking member in the form of a circular disc 8. The disc 8 is also pivotally mounted on the arm 27 of the bolt lock 25 at a distance from the stationary pivot axis 26. The disk 8 has a recess 39 which engages with a stationary pin 48. The stationary pin 48 is arranged axially to the stationary pivot axis 26 of the bolt lock 25. Furthermore, the circular disc 8 has a flattening 40 at an edge opposite the recess 39. The electric drive 34 is coupled to a pivot point 38 with the disc 8, which with respect to the movable pivot axis 31 of the disc 8 of the recess 39 is approximately opposite. In the embodiment the articulation point 38 of the electric drive 34 is located on a connecting line between the pivot axis 31 and a circular arc section which adjoins the flattening 40. This circular arc section forms a blocking surface 49. The radii between the pivot axis 31 of the disc 8 and the articulation point 38 on the one hand and between the pivot axis 31 of the disc 8 and the recess 39 on the other hand include an obtuse angle.

Fig. 3 shows the bolt lock 25 in the unlocked position. The arm 27 is in the drawing plane in a horizontal orientation. The locking lug 29 is disengaged from the recess 30 of the locking body 6. The flattening 40 of the disc 8 is oriented vertically and the articulation point 38 of the electric drive 40 is in the uppermost position. At the same time, the upper edge of the recess 39 abuts on the pin 48.

Fig. 4 shows the bolt lock 25 in a first intermediate position. The arm 27 is still in the plane of the drawing in a horizontal orientation. However, the disc 8 is slightly pivoted counterclockwise. An edge of the transition between the flat 40 and the circular arc portion 49 of the disc 8 is located on a stationary sliding surface 51 on. The articulation point 38 of the electric drive 38 is lower. At the same time, the lower edge of the recess 39 approaches the pin 48.

Fig. 5 shows the bolt lock in a second intermediate position. The arm 27 is now tilted down, the locking lug 29 is in engagement with the recess 30 of the locking body 6. A displacement of the locking body 25 is now no longer possible. However, in this position, the risk of manipulation is still given to pivot the latch lock 25 by impact pulses in the opposite direction. Although the disc 8 is not pivoted further, the edge of the transition between the flattening 40 of the disc 8 and the circular arc portion 49 of the disc 8 is slid lower and is located at a transition between the vertical stationary sliding surface 51 and the oblique undercut stationary stop surface 50th ,

Fig. 6 shows the bolt lock 25 in the locked and blocked position. After slipping past the transition between the vertical stationary sliding surface 51 and the oblique undercut stationary stop surface 50, the arm 27 has reached its tilted end position, a continuation of the Electric drive 34 has then pivoted the disc 8 further counterclockwise. As a result, the circular arc portion of the disc 8 acting as a blocking surface 49 reaches a position opposite the stationary stop surface 50. The articulation point 38 of the electric drive 34 is now at the lowest point.

In this position, pivoting back the bolt lock 25 is no longer possible. Because with respect to the pivot axis 26 of the bolt lock 25, the pivot radius is now such that the blocking surface 49 would abut against the stationary stop surface 50. Only when the disc 5 is pivoted clockwise and the edge of the transition between the flattening 40 of the disc and the circular arc portion 49 of the disc 8 is no longer below the stationary stop surface 50, the arm 27 can be transferred to the horizontal position again.

In order to facilitate the transition from the locked state to the unblocked state and vice versa in the interest of low wear and low drive power of the electric drive, the sliding surfaces of the disc 8 and the stationary stop surface 50 and the sliding surface 51 can be optimized. So can the disk side Transition between the blocking surface 49 and the flat 40 as well as the transition between the stop surface 50 and the sliding surface 51 are rounded. Furthermore, the abutment surface 50 may be concave. It is also possible to provide the blocking surface 49 and / or the abutment surface 50 with variable radii of curvature, so that the blockade builds up only gradually and conversely, the reduction of the blockage is facilitated.

The bolt lock 25 also carries an actuating means 32 in the preferred embodiment of a pin, this pin cooperates with a slide in the form of a locking slide 24. The gate valve 24 is with respect to the drawing planes after the FIGS. 1 and 2 formed movable to the left and right or in the opposite direction. The locking slide 24 has lock bar side via a ramp 33, which cooperates with the provided by the bolt lock 25 actuating means 32. If the locking slide 24, starting from the closed position of the lock 1 according to Fig. 1 with reference to the drawing plane Fig, 1 Move to the right, the ramp 33 of the locking slide 24 runs on the actuating means 32 of the latch 25, as a result, a deblocking and then unlocking the bolt lock takes place.

The locking slide 24 also carries in the form of a mandrel a closure member 45. In the closed position of the lock 1 according to Fig. 1 can, as in Fig. 1 shown, the slider 24 by means of the locking mechanism 18 with respect to the plane of the drawing Fig. 1 be moved to the left, so that the closure member 45 of the locking slide 24 dips into a slot 46 of the actuator 21 belonging to the actuating slide 22. In this position of the locking slide 24 actuation of the lock 1 is locked because the drive 21 is locked. Thus, regardless of the position of the bolt lock 25 a movement of the lock bolt 4 can be prevented.

The already mentioned electric drive 34 has an electric motor 35, which is coupled by means of a spiral spring 36 and a pin 37 formed rotary-linear converter to the transmission of the bolt lock 25. As soon as the electric motor is put into operation, for example via a wireless or wired remote control, power is transmitted to the disk. As a result of a twisting movement Twists the coil spring, as a result of which the pin moves upward or downward as viewed in the plane of the drawing.

The supply of the electric motor 35 with electrical energy by means not shown in the figures batteries. These are arranged in a battery box 41 which is received by a compartment 42 of the lock case 2. Alternatively, a network operation is possible.

It is also provided in the figures, not shown electronics for monitoring the electric motor assembly 34 and for controlling the same. The operation of the electric motor assembly 34 is preferably carried out by means of wireless remote control, which operates in the low-frequency range, so that a perfect function even in spite of the solid metal lock box 2 is possible. Alternatively, however, a wired control by an operating device is possible. <U> Bezugszelchenliste </ u> 1. lock 27th poor Second lock case 28th Lever extension Third stulp 29th nose 4th deadbolt 30th recess 5th bolt head 31st Bewegl. swivel axis 6th locking body 32nd actuating means 7th feather 33rd ramp 8th. disc 34 electric drive 9th release means 35 electric motor 10th header 36 spiral spring 11th pen 37 spigot 12th pawl 38 Anlenkort 13th First lever arm 39 recess 14th Second lever arm 40 flattening 15th axis of rotation 41 battery box 16th locking tab 42 subject 17th recess 43 drilling 18th barrage 44 locking slide 19th gear 45 closing part 20th Square bore 46 slot 21st drive 47 tooth profile 22nd operating slide 48 spigot 23rd tooth profile 49 blocking surface 24th blocking slide 50 stop surface 25th bolt lock 51 sliding surface 26th Stationä. swivel axis

Claims (10)

1. Security lock, in particular a heavy-duty mortise lock, having a blocking mechanism (18), a lock bolt (4) interacting with the blocking mechanism (18), a manually actuatable drive (21) for actuating the lock bolt (4), and a bolt catch (25) which blocks the movement of the lock bolt (4) in the blocking position, wherein the bolt catch (25) is a pivotably formed lever which can be actuated by an electric drive (34) and, in its blocking position, engages with a blocking lug (29), which is formed on the lock-bolt side, in a correspondingly formed recess (30) in the lock bolt (4), wherein a gear mechanism is arranged between the bolt catch (25) and the electric drive (34), wherein the gear mechanism is a driving and blocking member which is likewise pivotably mounted on the pivotably formed lever of the lock catch (25) at a distance from the stationary pivot axis (26) of said lever, and wherein the driving and blocking member consists of a circular disc (8) which can be pivoted about its centre, wherein the bolt catch (25) can be transferred from an unblocking position into a blocking position, and vice versa, by a pivoting movement of the disc (8) about the centre of the disc (8) and can additionally be blocked in the blocking position against pivoting.
2. Security lock according to Claim 1, characterized in that the driving and blocking member has a recess (39) which is in engagement with a stationary peg (48), in that the electric drive (34) is coupled to the driving and blocking member at an articulation point (38) which is opposite to the recess (39) with respect to the movable pivot axis (31) of the driving and blocking member or is arranged at an obtuse angle to the position of the recess (39), and in that, in the blocking position of the bolt catch (25), the driving and blocking member is pivotable into a blocking position in which a blocking surface (49) of the driving and blocking member can be transferred into a position opposite to a stationary stop surface (50).
3. Security lock according to Claim 2, characterized in that the stationary peg (48) is arranged axially on the stationary pivot axis (26) of the pivotable lever of the bolt catch (25) .
4. Security lock according to Claim 2 or 3, characterized in that the recess (39) is present at an edge of the disc (8) and a flat (40) is present opposite to the recess (39), and in that the articulation point (38) of the electric drive (34) lies on a connection line between the centre and the blocking surface (49).
5. Security lock according to Claim 4, characterized in that the disc-side transition between the blocking surface (49) and the flat (40) and/or the transition between the stop surface (50) and a sliding surface (51) are/is rounded off.
6. Security lock according to Claim 4 or 5, characterized in that the stop surface (50) is concavely formed, and in that the blocking surface (49) and/or the stop surface (50) have/has variable radii of curvature.
7. Security lock according to one of Claims 1 to 6, characterized in that the bolt catch (25) can additionally be unblocked and pivoted by means of a blocking slide (24) which is in engagement with the blocking mechanism (18).
8. Security lock according to Claim 7, characterized in that the driving and blocking member bears an actuating means (32), preferably in the form of a pin, with which the blocking slide (24) interacts via a ramp.
9. Security lock according to one of Claims 1 to 8, characterized in that the electric drive (34) has an electric motor (35) and a rotary-linear converter which couples the electric motor (35) to the gear mechanism.
10. Security lock according to Claim 9, characterized in that the rotary-linear converter has a rotatable helical spring (36) which is coupled to a peg (37) which engages in the rotatable helical spring (36) and which is connected to a linearly movable actuating rod.

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