EP1932989B1 - Locking device for doors, windows or similar, in particular an espagnolette lock with panic function and multi-point locking - Google Patents

Description

• die Schlossnuss über eine Schlosskette auf den Zentralriegel und Zusatzverriegelungen betätigende Treibstangen arbeitet und einen Kettenmitnehmer sowie einen Panikmitnehmer aufweist,
• der Kettenmitnehmer mit der Schlosskette und der Panikmitnehmer mit einem Panikübersetzungshebel zusammenwirken,
• eine schwenkbar gelagerte Riegelsperre mittels des Schließzylinders aus einer "Entriegelungsstellung" in eine die Schlosskette bei ausgefahrenem Zentralriegel und in Verriegelungsstellung befindlichen Zusatzverriegeiungen blockierende "Verriegelungsstellung" verstellbar ist und
• der Panikübersetzungshebel mit dem Innenriegel bei Drückerbetätigung in schlossöffnendem Sinne zusammenwirkt.

The invention relates to a locking system for doors, windows or the like, in particular a espagnolette lock with panic function and multi-point locking, with a handle-and key-operated central lock with latch, central latch, lock nut and lock cylinder, said

• the locknut works via a lock chain on the central bolt and additional locking actuated drive rods and has a chain driver and a panic driver,
• the chain driver interacts with the lock chain and the panic driver with a panic transmission lever,
• a pivotally mounted bolt lock by means of the lock cylinder from a "unlocking" in a lock chain with extended central bolt and in the locking position located Zusatzverriegei blocking "locking position" is adjustable and
• the panic translation lever cooperates with the inner latch when the handle is operated in the manner of opening the latch.

Such a locking system in the embodiment as espagnolette lock with panic function and multi-point locking is from the DE 10 2004 012 108 B4 known. In this embodiment, the lock nut is a split lock nut with a first half-lock nut and a second half-lock half as well as interposed arranged Kettenmitnehmer and Panikmitnehmer. In this case, a longer handle bolt can be inserted into the first half of the lock nut which, when actuated, carries the panic catch as well as the chain catch with a predetermined clearance. In addition, a shorter pusher bolt can be inserted into the second half of the lock nut, which actuates the associated chain catch with a predetermined clearance. In this respect, the main castle has next to the lock latch a main bolt and, as it were, a four-piece lock nut. The lock nut halves are coupled via the handle bolts with the door handle. The main lock can be locked via the lock cylinder against unauthorized opening from the outside. From the inside of the door all locking points can be retracted at any time without a door key by simply pressing the door handle and consequently pressing the longer handle bolt. By building the four-piece lock nut with the two halves of the lock nut, the Panikmitnehmer and the chain driver, and taking into account the two associated different length handle bolts, a push-action panic multi-point lock is created, which can be used for both doors DIN-left and DIN-right , On which side of the lock the panic function is to be determined by the fitter by the optional insertion of the handle bolt. The longer handle bolt basically actuates the panic catcher and defines the inside of the door. In addition to the known implementation of the latch need no further changes to the locking system to be made. The construction of this lock is designed so that an opening of the castle, ie a retraction of the trap must be done both from the inside of the door and the outside of the door via a pusher. A retraction of the case on the lock cylinder is not provided.

However, it is also known an espagnolette lock, in which by actuation of the lock cylinder, the latch bolt is withdrawn. For this purpose, a latch lever is mounted on the lock nut, which has an actuating arm which operates on the latch bolt. On this rotatable lever operates a change lever, which is actuated by the locking lug of the lock cylinder (see. DE 198 42 279 A1 or EP 0 987 391 B1 ). Such a lock with so-called change function allows the retraction of the case from the outside of the door only on the profile cylinder, while from the inside of the door additionally opening by means of a pusher is possible. A panic opening is not possible in the extent known castle.

From the EP 1 353 028 A1 is a simple mortise lock without multiple locking with panic function and switching function known. The same applies to the GB 2 268 969 ,

Finally, also describes the DE 25 46 549 A1 a panic lock with latch and latch, which is characterized by a change lever, which is to represent in addition to its change function, the power transmission means for retracting the trap by means of the panic nut.

The invention has for its object to provide a locking system for doors, windows or the like, in particular a espagnolette lock with panic function and multipoint, which allows simple and cost-effective design and proper operation including panic function a case operation on the lock cylinder and consequently a change operation.

To solve this problem, the invention teaches a locking system with the features of claim 1.

Preferably, with the Panikwechselhebel also in handle operation (from inside) of the latch lever actuated, so that even when the handle operation (from inside), the latch is retracted by means of the latch lever. - In the context of the invention, therefore, a locking system, and in particular a drive rod lock is provided, which has both a panic function as well as an exchange function. Change function means that (via a change) in lock cylinder actuation, the latch can be withdrawn by means of this lock cylinder, so that z. B. from the outside of the door an opening only on the lock cylinder is possible. These functions are combined in a structurally particularly simple and cost-effective manner, since the panic translation lever known per se also assumes the function of a change lever.

It is expedient if Kettenmitnehmer and Panikmitnehmer are arranged in a conventional manner between a first half and a half Schlossnusshälfte, with a longer handle bolt is inserted into the first half Schlossnusshälfte and when actuated the Panikmitnehmer and the Kettenmitnehmer with a predetermined clearance entrains and a shorter Handle bolt can be inserted into the second lock nut half, which actuates the associated chain cam with a predetermined clearance. In such an embodiment, the invention proposes that the Panikwechselhebel works on the one hand key operation and on the other hand with handle operation (on the longer handle bolt and consequently of the inside of the door) on the latch lever. The main lock can therefore be locked via the lock cylinder initially against unauthorized opening from the outside. From the inside of the door, all locking points can be accessed at any time without a door key by simply pressing the door handle and consequently actuating the longer handle bolt in the sense of a panic operation be confiscated. Due to the special structure of the four-piece lock nut with the two half-nuts, the Panikmitnehmer and the chain driver, and taking into account the two associated different length handle bolts, a push-action panic multi-point lock is created, which are used for both DIN-left and DIN-right doors can. On which side of the lock the panic function is to be determined by the fitter by the optional insertion of the handle bolt. The longer handle bolt basically actuates the panic catcher and defines the inside of the door. There is the possibility of the lock latch from the inside of the door and consequently retract over longer handle bolts as before. However, such an actuation of the latch is not possible via the shorter handle bolt and consequently from the outside of the door. According to the invention, however, the door lock can be opened from outside via the lock cylinder, since the lock cylinder works via the combined panic change lever on the latch lever and consequently the lock catch. This embodiment brings a basic security with the door closed and not locked, since an opening from the outside can only be done by means of a key and therefore only by authorized persons. This succeeds in a cost-effective manner, since the known in conventional systems change lever and the known in other conventional systems Panikübersetzungshebel are fused to form a single component. By small structural changes to the components, it is possible to convert the lock according to the invention, in which case the switching function can be omitted, so that in a conventional manner from the outside the door can be opened in the unlocked state on the pusher.

Advantageous developments of the invention are explained below: First of all, in one possible embodiment, the invention proposes that the latch lever is rotatably mounted on the lock nut. However, the invention also includes modified embodiments in which the latch lever z. B. is displaceable or rotatable or pivotable at other locations. The lock cylinder or its closing nose operates according to the invention via a connecting lever on the panic change lever. However, since the panic change lever is anyway guided into the vicinity of the lock cylinder or the associated bolt lock due to its panic function, it is possible to work with a relatively small component as a connecting lever. The lock nut works preferably on the panic lever on the Panikwechselhebel and this in turn on the latch lever.

In a preferred embodiment, the connecting lever has an actuating stop for the lock cylinder actuation. In this context, it is advantageous if the lock cylinder, a transmission lever, z. B. is associated with a rotatable transmission ring. Such a transfer ring can fulfill double function within the scope of the invention. First of all, it is provided that the transmission ring is in operative connection with the previously described bar lock, so that the transmission ring actuates the bar lock in the course of unlocking or locking. In addition, this transmission lever can now work against the actuating stop of the connecting lever, which in turn actuates the Panikwechselhebel. In the course of the rotation of the lock cylinder or its locking lug consequently the transmission ring is driven in rotation, said transmission ring on the one hand can pivot the bolt lock and on the other hand works on the connecting lever and the panic change lever on the latch lever. In the context of the invention, consequently, a plurality of components are provided with multiple functions, so that the lock according to the invention itself characterized by a simple and inexpensive construction with perfect function.

Preferably, the connecting lever is movably connected to the panic change lever. It may be expedient if the connecting lever engages movable in the panic change lever. For this purpose, the panic change lever may have a recess or receptacle, in which engages the connecting lever with its cylindrical or spherical end.

According to a preferred embodiment, the panic change lever on an actuating arm for the latch lever. Thus, the panic change lever differs from the known from the prior art panic transmission lever not only by the already described receptacle for the pivotal use of the connecting lever but also by an operating arm connected to the lever, which is in interaction with the latch lever. Furthermore, it is expedient if the panic cam in the four-piece cam follower has a control pin which works on a first control section of the panic release lever for panic unlocking and on a second control section of the panic change lever for the latch operation.

Fig. 1

ein Treibstangenschloss mit Panikfunktion und Mehrpunktverriegelung in schematischer Seitenansicht,

Fig. 2

einen Ausschnitt aus dem Gegenstand nach Fig. 1 im Bereich des Zentralschlosses mit abgenommenem Schlossdeckel und in der Grundstellung "offen",

Fig. 3

den Gegenstand nach Fig. 2 mit über den Schließzylinder gezogener Falle,

Fig. 4

den Gegenstand nach Fig. 2 mit über den Drücker (von Innen) gezogener Falle,

Fig. 5

den Gegenstand nach Fig. 2 in der Stellung "verriegelt",

Fig. 6

den Gegenstand nach Fig. 5 in der Stellung "Panikbetätigung von innen",

Fig. 7

einen Querschnitt durch den Schlossnussbereich und

Fig. 8

einen Ausschnitt aus dem Gegenstand nach Fig. 2 in abgewandelter Ausführungsform mit Fehlbedienungssperre.

Further details of the invention or advantageous embodiments will be explained in more detail with reference to the following drawings, which illustrate only one embodiment. Show it:

Fig. 1

a espagnolette lock with panic function and multipoint locking in a schematic side view,

Fig. 2

a section of the object after Fig. 1 in the area of the central castle with the lock lid removed and in the basic position "open",

Fig. 3

the object after Fig. 2 with trap drawn over the lock cylinder,

Fig. 4

the object after Fig. 2 with trap pulled from inside,

Fig. 5

the object after Fig. 2 in the position "locked",

Fig. 6

the object after Fig. 5 in the position "Panic operation from inside",

Fig. 7

a cross section through the castle nut area and

Fig. 8

a section of the object after Fig. 2 in a modified embodiment with incorrect operation lock.

In the figures, a locking system for doors, namely an espagnolette lock with panic function and multi-point locking is shown. To Fig. 1 If the multi-point locking of a central lock 1 and other attached to a common cuff 2 additional latches 3, which are actuated by behind the cuff 2 espagnolettes 4. The additional locks 3 have according to the embodiment of the pivot bolt, but it can also bolt bolts and / or other additional locks are used. The locking system has a push-button and key-operated central lock 1 with a spring-loaded lock latch 5, also with a central bar 6, a multi-part lock nut 7 and a lock cylinder 8, which may be designed as a profile cylinder. The lock nut 7 operates on a lock chain 9 on the central bolt 6 and on the additional locking 3 actuated connecting rods 4. Between a first half and a second half Schlossnußhälfte 11 a Kettenmitnehmer 12 and a Panikmitnehmer 13 are coaxially arranged to form the locknut. The Kettenmitnehmer 12 cooperates with the lock chain 9, the Panikmitnehmer 13 cooperates with a Panikübersetzungshebel 14. In the first half of the lock nut 10, a longer handle bolt 15 is used, which entrains the Panikmitnehmer 13 and the Kettenmitnehmer 12 with predetermined clearance when actuated. In the second half-lock nut 11, a shorter pusher bolt 16 is used, which can operate the associated chain cam 12 with a predetermined clearance. Further, a pivotally mounted bolt lock 17 is provided, which is also referred to as an internal latch and which by means of the lock cylinder 8 from an unlocking position in a lock chain 9 with extended central bolt 6 and locking position located in the additional locking 3 blocking "locking position" is adjustable. The Panikübersetzungshebel 14 cooperates with the bolt lock 17 in door inner side handle operation of the longer press bolt 15 in the lock-opening sense together. The first half of the lock nut 10 and the second half of the lock nut 11 have two driver arms (not shown) offset by a predetermined angle of rotation, between which a drive cam 22, 23 of the chain driver 12 protrudes, between the first half of the lock nut 10 and the chain driver 12 Clearance of 45 ° is formed. The Panikmitnehmer 13 has a penetrated by the associated drive cam 22 of the Kettenmitnehmers 12 with predetermined movement clearance opening 24 and is partially stored in a bed-like recess 25 of the Kettenmitnehmers 12. The chain driver 12 has a fork-shaped Recording 26 for an actuating cam 27 on the lock chain 9 or on an associated chain lever of the lock chain. The panic cam 13 has a control cam 28 which operates on a control cam 28 on the pivotally mounted panic transmission lever 14. The Panikmitnehmer 13 has a bolt receptacle for a longer multi-edge end 30, z. B. square end on the longer pusher bolt 15, which is designed as a 45 ° free-ratchet 31 for the longer pusher bolt 15 and its dipping multi-edge end 30. The longer pusher bolt 15 can also be used with its longer polygonal end 30 in the second half-lock nut 11 and the shorter pusher bolt 16 with its shorter polygonal end 32 in the first half-lock nut 10, wherein the longer multi-edge 30 of the longer pusher bolt 15 with predetermined movement play by a circular Opening 33 of the Kettenmitnehmers 12 passes through into the free-locking mechanism 31 of the Panikmitnehmers 13 to its operation. The inside of the door is always defined by the insertion side of the longer handle bolt 15.

The handle bolts 15, 16 each have a multi-edge ends 30, 32 limiting collar 34, 35, z. B. a lock washer and are surrounded by an upstanding on the lock washer compression spring 36, 37. The two lock nut halves 10, 11 have rear side on the side facing away from the lock chain 9 projections 38, 39 or lugs on the fall side of at least one spring-loaded (not shown) return rams and separated on the opposite side of each own spring-loaded (not shown) Reset rams are acted upon. - The pivotally mounted panic transmission lever 14 is pivotable against a locking cam 43 on the bolt lock 17 below the pivot axis 44 of the bolt lock 17 to the actuation thereof.

The lock cylinder 8 is associated with a transfer ring 46 which surrounds this rotatable. In the course of the rotation of the locking lug 45 of the lock cylinder 8, the transfer ring 46 is forcibly taken. For this purpose, the locking lug 45 engages in a recess 47 formed as a recess 47 of the ring 46 a. In this case, the transfer ring 46 is equipped with a first toothed segment 48 which cooperates with a corresponding toothed segment 49 on the bolt lock 17. In the course of the key operation of the lock cylinder 8, the bolt lock 17 can be pivoted from the "unlocking" in the "locking position" and vice versa. In addition, the interaction of the toothed segments 48, 49 ensures that the locking lug 45 is guided out of a possible blocking area in any case during panic operation, so that a safe panic actuation is always ensured. It is reliably avoided that the locking lug 8 z. B. when stuck in the lock key in an area that would block a panic actuation. The transmission ring is rotatably mounted in a guide receptacle 51 of the lock housing 50.

The espagnolette lock is designed not only for a panic actuation, but also for a "change operation", ie from the outside of the door, the lock latch 5 can only pull back on the lock cylinder 8. For this purpose, a latch lever 52 is rotatably mounted in the area of the lock nut 7 and has an actuating arm 53 which works against a stop 54 (eg a cam / bolt) on the latch 5, so that the latch 5 is rotated by rotation of the latch lever 52 is withdrawn. E ₁ is now provided that the Panikübersetzungshebel 14 is designed as Panikwechselhebel 14, with which first time in lock cylinder actuation of the latch 5 retracting latch lever 52 is actuated. In addition, with the Panikwechselhebel 14 even with handle operation from the inside of the latch lever 52 can be actuated and consequently the Lock latch 5 retractable. The lock cylinder 8 operates with its locking lug 45 via a connecting lever 55 and a change lever on the Panikwechselhebel 14. The connecting lever 55 is movable, namely pivotally connected to the Panikwechselhebel 14. For this purpose, the connecting lever engages with a circular or cylindrical end 63 in a recess formed as a bearing receptacle 64 of the Panikwechselhebels 14 a. The lock nut 7 also operates on the Panikmitnehmer 13 on the Panikwechselhebel 14. For the lock cylinder actuation, the connecting lever 55 has an actuating stop 56. This stop 56 can be actuated with the aid of the transmission ring 46 already described, which has a projection or stop 62 working on the stop 56 for this purpose. Furthermore, it is shown in the figures that the Panikwechselhebel 14 has an actuating arm 57 for the latch lever 52, wherein this substantially L-shaped or C-shaped actuating arm 57 is connected to the upper end of the Panikwechselhebels 14. The panic change lever 14 for the panic function and the change function is formed integrally with its actuating arm 57. The panic cam 13 has the already mentioned control pin 29, which operates on the control cam 28 on the panic change lever 14. This control cam 28 and the control pin 29 fulfill dual function. For the control cam 28 has two control sections 59, 60 with different functions. On the one hand, the control pin 29 operates on a first control section 59 of the panic release panic release lever 14 and on the other hand on a second control section 60 of the panic change lever 14 for the latch operation.

The operation of the door lock according to the invention will be explained below:

Fig. 2 shows first the door lock according to the invention in unlocked state. The longer pusher bolt 15 is located with the longer multi-edge end 30 in the first half-lock nut 10 and the shorter pusher bolt 16 with the shorter multi-edge end 32 in the second end half nut 11. The latch 5 is spring-loaded.

By turning the lock cylinder 8 in the clockwise direction, the latch 5 can now retract. This results from a comparative analysis of the Figures 2 and 3 , The locking lug 45 of the profile cylinder 8 and the transfer ring 46 lift the connecting lever 55 in the course of rotation. This connecting lever 55 is rotatably mounted on the panic change lever 14. This rotates the latch lever 52 and consequently pulls the latch 5 back (see. Fig. 3 ). This operation of the case 5 via the lock cylinder 8 can be done both from the lock outside and from the inside of the lock.

In addition, the door lock allows a handle operation ie an opening of the door from the inside of the door with the lock unlocked. This will be based on a comparative analysis of the Figures 2 and 4 directed. When the handle is pressed (from the inside) downwards, the corresponding pusher half 10 is first turned. By the freewheel in the panic cam 13 of this first is taken in a certain angular position of the Nussvierkant. The driver 13 then raises the Panikwechselhebel 14 on the designated nose or the control portion 60 of the arm 57 at. This catch lug or arm 57 now actuates the latching lever 52, which is mounted so as to rotate about the nut 7. This latch lever 52, in turn, pulls the latch 5 into its position. From the outside of the door, such a handle operation is not possible.

The locking of the in Fig. 2 located open door lock is done by a handle operation up, ie counterclockwise. This will be based on a comparative analysis of the Figures 2 and 5 directed. If the first half of the lock nut 10 is rotated by 45 ° in the counterclockwise direction by lever action of the longer presser pin 15, the chain driver 12 and the panic driver 13 are rotated. The control pin 29 of the Panikmitnehmers 13 pivots the Panikübersetzungshebel 14 in a clockwise direction. The lock chain 9 is moved by the Kettenmitnehmer 12 down. As a result, the additional locking 3 and the central latch 6 are extended to the locking position. The second half of the lock nut 11 does not rotate with it. If the door handle and consequently the longer handle bolt is released, then the lock nut 7 is returned to its initial position by the action of a spring force. The Kettenmitnehmer 12 and the Panikmitnehmer 13 do not move back. Due to the clearance areas they remain in the previously occupied position. Now, by turning the lock cylinder 8 or its catch nose 45 counterclockwise, the bolt lock 17 are brought into the locking position, so that then the in Fig. 5 shown locked functional position is taken. The locking lug 45 works via the transfer ring 46 on the bolt lock 17th

The panic change lever 14 already described assumes a double function in the frame. Because he not only ensures a case operation by means of the lock cylinder 8, but is also set up for a panic function. This panic function, which is also referred to as Komfortentriegelung results from a comparative analysis of Figures 5 and 6 , To Figures 5 and 6 dips the longer polygonal end 30 of the longer pusher bolt 15 on the inside of the door in the lock nut 7 a. Both the first half of the locknut 10 and the middle one in the nutshell accommodated panic driver 13 penetrated by the longer multi-edge end 30. When lever handle on the inside of the door next to the first half of the lock nut 10 and the chain cam 12 and the Panikmitnehmer 13 is pivoted clockwise. By pivoting the Panikmitnehmers 13 of the Panikübersetzungshebel 14 is pivoted counterclockwise. As a result, a lower control surface 61 of the Panikübersetzungshebels 14 presses against the inner latch or the bolt lock 17. The bolt lock 17 is pivoted counterclockwise in the opening direction. Already after a small nut rotation to z. B. 3 to 10 °, the inner bar 17 releases the lock chain 9 and allows further rotation by opening the multi-point lock. This is not shown in detail. By further rotation of the first half-lock nut 10, the Panikmitnehmers 13 and the Kettenmitnehmers 12 to 45 ° all additional latches 3 and the central latch 6 are completely retracted. About the Panikwechselhebel 14 also the latch lever 52 is rotated, which retracts the case 5. After releasing the door handle pivots the first half-castle nut 10 spring loaded in the starting position, which is also not shown. The lock then goes back to the open position, the in Fig. 2 is shown.

In Fig. 7 the pusher nut is shown in cross-section. It can be seen that by implementing the handle bolts 15, 16 a door DIN links or a door DIN-right can be realized, even if the lock latch 5 is implemented in a conventional manner.

An advantageous (optional) embodiment of the invention is in Fig. 8 shown. Thereafter, the lock is equipped with a mishandling lock 65. This is z. B. between the latch 5 and central latch 6 a spring-loaded and can be pressed into the lock housing misoperation lever 66 slidably stored. This works in either blocking or releasing sense with the chain 9 together. For this purpose, the incorrect operating lever 66 is provided with a toothing 67, which cooperates with a chain 9 arranged on the locking teeth 68. This ensures that the chain 9 can be moved only when depressed erroneous operating lever 66. In this way, it should be ensured that the chain 9 can only be operated when the door in a corresponding door receptacle, for. B. a frame or a frame is located. The lock operation is therefore not possible with the door open, so that it is prevented that the bolt is accidentally extended, so that then closing the door would no longer be possible.

Overall, the following possible functions result:

From the outside of the door locking can be done by pulling up the door handle, so that the auxiliary latch locks 3 extend. This pre-locked position is then secured by turning the key so that the lock is in locked position or locked position and the pusher is blocked.

Furthermore, the door lock can be unlocked from the outside of the door by turning the key so that it comes to the pre-locked position. By pressing operation from the outside then the additional locks 3 can be retracted. The door is then unlocked, the latch 5 but further engaged. When the handle is pressed again, it runs in idle. Because for the case operation a key rotation is required, ie the case is retracted (change function).

From the inside of the door can also be extended by pulling up the pusher, the additional lock or additional bolt locks 3, so that the prelocked functional position is achieved. The key rotation is again the establishment of the blocking position or locking position in which the pusher is blocked from the outside of the door. To open the lock can be unlocked either by turning the key and consequently the handle can be pressed down. But it is also possible in the sense of a panic operation to unlock the lock on the handle, so that the additional locks and the trap introduce (panic / comfort function).

According to the invention, a comfortable opening of the door from the inside without prior unlocking of the castle succeeds. The case 5 can be pulled from the outside of the door only via the lock cylinder 8. This provides basic security with the door closed and unlocked. Only authorized persons can open the door with a key. By small changes to the components and the switching function can be omitted, d. H. from the outside, the door can then be opened in the unlocked state via pushers. According to the invention, a double storage for right and left locks is no longer required, so that this allows both the processor and the retail or manufacturer a simplified and cost-effective storage. In addition, the production costs are minimized because no different components or assemblies are required for right and left doors. Overall, the lock is characterized by easy installation and a very limited number of components, so that it can be manufactured inexpensively.

Claims (10)

1. A locking device for doors, windows or the like, designed as a drive rod lock with panic function and multi-point locking, comprising a handle- and keyactuatable central lock (1) with a falling latch (5), a central bolt (6), a lock nut (7) and a locking cylinder (8), wherein

   - the lock nut (7) acts via a lock chain (9) on the central bolt (6) and on drive rods (4) actuating additional locking elements (3), and has a chain driver (12) and a panic driver (13),

   - the chain driver (12) interacts with the lock chain (9) and the panic driver (13) interacts with a panic transmission lever (14),

   - a pivotably mounted locking pawl (17) can be displaced by means of the locking cylinder (8) from an "unlocking position" into a "locking position" which blocks the lock chain (9) when the central bolt (6) is extended and the additional locking elements (3) are in locking position, and

   - the panic transmission lever (14) interacts with the locking pawl (17) in a lock-opening manner upon handle actuation on the inner side of the door without prior unlocking of the lock,
   wherein the panic transmission lever is designed as a panic change lever (14) by means of which, at least upon actuation of the locking cylinder, a latch lever (52) retracting the falling latch (5) can be actuated, and
   wherein the locking cylinder (8) or its locking nose (45) acts via a connecting lever (55) on the panic change lever and the latter acts on the latch lever (52).
2. The locking device according to claim 1, characterized in that upon handle actuation, the latch lever (52) can also be actuated with the panic change lever (14).
3. The locking device according to claim 1 or 2, wherein the lock nut is designed as a split lock nut having a first lock nut half (10) and a second lock nut half (11), wherein the chain driver (12) and the panic driver (13) are arranged between these lock nut halves,
   wherein a longer handle shaft (15) can be inserted into the first lock nut half (10) and, upon actuation, drives the panic driver (13) and the chain driver (12) with a predetermined backlash,
   wherein a shorter handle shaft (16) can be inserted into the second lock nut half (11) which actuates the associated chain driver (12) with a predetermined backlash, characterized in
   that in the unlocked state of the lock, the panic change lever (14) acts on the latch lever (52), on the one hand, upon handle actuation and, on the other, upon key actuation.
4. The locking device according to any one of the claims 1 to 3, characterized in that the latch lever (52) is rotatably mounted on the lock nut (7).
5. The locking device according to any one of the claims 1 to 4, characterized in that the lock nut (7) acts via the panic driver (13) on the panic change lever (14) and the latter acts on the latch lever.
6. The locking device according to any one of the claims 1 to 5, characterized in that the connecting lever (55) has an actuation stopper (56) for actuation of the locking cylinder.
7. The locking device according to claim 6, characterized in that a transmission lever (46), e.g., a rotatable transmission lever is associated with the locking cylinder, which transmission lever is actuated by the locking nose (45) and thereby acts on the pivotable locking pawl (17), and that this transmission lever (46) acts against the actuation stopper (56) of the connecting lever (55).
8. The locking device according to any one of the claims 1 to 7, characterized in that the connecting lever (55) is movably connected to the panic change lever (14), e.g., engages movably therein.
9. The locking device according to any one of the claims 1 to 8, characterized in that the panic change lever (14) has an actuating arm (57) for the latch lever (52).
10. The locking device according to any one of the claims 1 to 9, characterized in that the panic driver (13) has a control pin (29) which acts on a first control portion (59) of the panic change lever (14) for panic unlocking and acts on a second control portion (60) of the panic change lever (14) for latch actuation.

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