EP2060714A2 - Espagnolette lock - Google Patents

Abstract

The lock has a locking nut (8) that works on a safety catch (6), a central bar (7) and a connecting rod (4) over a locking chain. The locking nut transfers the central bar, an auxiliary locking device (3) and a locking bar in a locking position to an unlocking position during actuation in an opening direction opposite to the direction of closing over the chain. The locking bar is formed as a rotatably supported locking lever with a locking surface and/ or a locking cam by a catch spring, where the locking cam lies in the locking position corresponding to the locking surface of the chain.

Description

The invention relates to an espagnolette lock with multi-point locking, with a handle-operated and key-operated central lock with lock latch, central latch, lock nut and lock cylinder and one or more additional locks, which are actuated via one or more drive rods,
the lock nut works on the one hand on the latch and on the other hand via a lock chain on the central bolt and the drive rods,
wherein a bolt lock by means of z. B. the locking lug of a lock cylinder from a lock chain blocking "locking position" in a lock chain releasing "Vorverriegelungsstellung" is adjustable,
wherein the lock nut in the "Vorverriegelungsstellung" the bolt lock when operated in an opening direction on the one hand, the latch in an open position and on the other hand over the lock chain the central bolt and the additional locks in a "unlocked" and transferred
wherein the lock nut in the "unlocking" when operating in a direction opposite to the opening direction closing direction on the lock chain both the central bolt and the additional locks and the bolt lock transferred to a locking position.

Espagnolette locks with multi-point locking are known in practice in various embodiments. In particular, such embodiments are known in which the located above and below the main lock box additional latches are not extended by key operation, but by handle operation. To For example, the pusher is usually operated in a closing direction opposite to the opening direction (eg upwards). One speaks in this context of a pre-locked state, wherein in the locks known from practice often arranged in the main lock box central bolt then separately by means of a profile cylinder, z. B. is brought by key operation in a locked position.

However, there are also such embodiments of espagnolette locks are known in which the center bar is not extended via separate key operation, but also in the course of the operation of the pusher. In such locks the center bar is then already extended in the pre-locked state. For final locking the key operation is necessary, with a locking element or a bolt lock the lock mechanism, z. B. locks the lock chain, and thus protects against unauthorized opening.

Finally, such espagnolette locks are known in which not only the additional latch and the center latch are extended in the course of the handle operation up, but also immediately a final locking takes place in which a locking member or a bolt lock is transferred to the locking position and z. B. blocked the lock chain. The transferring from the pre-locking position into the locking position is consequently not achieved by turning the key, but by a resilient element which is released when the handle is actuated and locks the lock.

Such an embodiment is for example from the EP 0 521 262 B1 known. In the case of the known espagnolette lock, the latch is preconnected in a rotational movement of the follower in an opposite direction of the opening direction of the latch and for automatic blocking of the bolt while a tumbler is actuated, which releases a locking member in the locking position, so that the locking member blocks the lock chain. The structure of the extent known castle is relatively complicated. Moreover, there is the possibility that the locking lug of the profile cylinder can be rotated in the locked state by more than 360 °. The lock is unlocked and locked continuously with each revolution. This affects the use of the known castle.

The same applies to one from the EP 1 672 153 A1 known espagnolette lock, in which the locking bolt is also controlled by the pusher in a locked state. The problem with the so far known embodiment is the fact that the lock is indeed unlocked via the key, after unlocking, however, a lock on the key is not readily possible. First, the locking element must be biased again by an opening movement of the pusher, in order then to lock the lock by a pusher movement can up.

The invention has for its object to further develop a drive rod lock of the type described above such that a simple and reliable handling is ensured in a simple and inexpensive construction.

To solve this problem, the invention teaches in a generic lock of the type described above that the bolt lock is rotatably mounted (in the lock box), loaded by a locking spring locking lever with a locking surface, wherein the locking surface rests in the locked position against a locking surface of the lock chain , The blocking surface of the bolt lock can be designed as a locking cam. The bolt lock is preferably a cooperating with the bolt lock rotatable locking plate assigned, wherein the locking spring between locking latch on the one hand and locking plate on the other hand acts. A spring loading of the bolt lock relative to the lock case is therefore preferably not provided in the context of the invention.

The invention is initially based on the recognition that the desired "self-locking" function is provided in a structurally particularly simple manner when working with a rotatably mounted in the lock case bolt lock, which with a z. B. cooperates on the bolt lock or resting on the central locking plate. A tension spring is only provided between the bolt lock on the one hand and the locking plate on the other hand, which thus spring force acts on these two components in opposite directions. Other components are - apart from the usually provided components - such. B. lock chain, middle bar and lock cylinder with locking lug not required. Particularly advantageous in this context is that the locking member can absorb high forces by its rotatable mounting, which are derived in the bearing pin of the bolt lock and on this in the lock case. An opening or destruction of the mechanism by high forces on the door handle is thus reliably and easily avoided.

Preferably, the locking bolt rotatably mounted with a fixed axis of rotation in the lock case has a locking pin, which in a locking recess, for. B. locking groove which engages resting on the latch lock plate. That the locking plate preferably rests on the bolt lock means in the invention that no special fixation or storage of the locking plate to z. B. is provided the lock case. The locking plate can rest directly or indirectly on the bolt lock. Particularly preferably, the blocking plate rests on the bolt lock with the intermediary of the central bolt. The deadbolt is from this lock plate in the Vorverriegelungsstellung held, although the spring load pushes the bolt lock basically in the direction of the locking position. The lock plate ensures in the desired Vorverriegelungsstellung thus blocking the bolt lock and prevents them from taking the locking position. For this purpose, preferably, the arcuate locking groove having at least a first arcuate locking portion and at least a second arcuate release portion, wherein the locking portion and the release portion having different radii of curvature, wherein the locking latch is held by the locking plate when the locking pin engages in the locking portion and wherein the locking latch released is when the locking pin engages in the release portion. Depending on the position of the locking plate, the locking member, ie the bolt lock is thus either held against the spring force in the Vorverriegelungsstellung or released but then pressed by the spring force in the locked position.

By the spring coupling, the lock catch on the one hand and the lock plate on the other hand influence in the manner described, not only the lock bar is held by the lock plate in a certain position, but also the lock plate is held by the lock in position, when z. B. engages the locking pin in the release portion. In this context, it is of particular importance that the position of the bolt lock is not determined exclusively on the locking plate, but that, moreover, preferably, the locking plate has a control recess z. B. has a cam, in which a tax advantage, z. B. engages a control cam of the central bar. The locking plate is pressed in response to the position of the control projection in the cam of the spring in different directions of rotation. It is further provided that the bolt lock also depends directly on the position of the central bolt, namely, preferably held in the "unlocked position". For this purpose, the central bolt may have a locking extension, which in the "unlocking position" works against the bolt lock, z. B. against a locking projection, preferably against the locking pin of the bolt lock. This design causes the bolt lock is held in retracted central bolt in each case in the "unlocked" or "pre-locked position", although the spring force would try to transfer the bolt lock in the locked position.

Overall, the invention is characterized in a particularly preferred embodiment by an interaction of bolt lock, locking plate and central bolt, the lock plate can rest as it were on the central bolt and is held and positioned on the locking pin of the locking member, the control cam of the central bolt and the locking spring. Furthermore, it may be useful if the locking plate is mounted with displacement play on the axis of rotation of the bolt lock and to a bearing recess has, which is formed larger than the bearing pin and the bearing shaft of the bolt lock.

Furthermore, the invention proposes that the bolt lock a control contour, z. B. has a control receptacle for the lock cylinder or its closing nose or cam. In this respect, it may be a molding or fork seat in the bolt lock, wherein the locking lug engages to transfer the bolt lock from the locking position into the Vorverriegelungsstellung in this fork mount and rotates the bolt lock against the spring force. Upon reaching the Vorverriegelungsstellung the bolt lock is then held by the locking plate in position. In the context of the invention, however, there is also the possibility that with the help of the lock cylinder, the bolt lock is transferred from the pre-locked position back into the locking position, without the need for a supplementary handle operation or the like would be necessary.

Overall, the castle is characterized by its limited number of parts and the simple structure of the parts described by a simple design that works reliable and easy to use. In addition, particularly high forces can be absorbed in the manner described so that manipulation or destruction can be reliably avoided. There is a clear limitation of the rotational movement of the cam or the locking nose, so that only clearly defined states are possible. This facilitates operation and avoids operator errors. The locking and pre-locking or pre-locking and locking is possible without further handle operation. Not only additional locks but also a middle bar or central bar are realized.

Furthermore, it is within the scope of the invention, the possibility to integrate a so-called exchange function in the castle. For this purpose, an additional change lever is integrated into the lock in a conventional manner, which is connected to a latch lever, so that when key operation not only the lock is released, but also the latch can be withdrawn. Details are explained in the description of the figures.

Fig. 1

ein Treibstangenschloss in einer vereinfachten, schematischen Seitenansicht,

Fig. 2

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

Fig. 3

den Gegenstand nach Fig. 2 im Zuge der Verriegelung durch Drückerbetätigung,

Fig. 4

den Gegenstand nach Fig. 3 in der Funktionsstellung "verriegelt",

Fig. 5

den Gegenstand nach Fig. 4 in der Funktionsstellung "verriegelt" bei einsetzender Entriegelung durch den Schließzylinder,

Fig. 6

den Gegenstand nach Fig. 5 im Zuge der Entriegelung und

Fig. 7

den Gegenstand nach Fig. 6 in der Funktionsstellung "vorverriegelt",

Fig. 8

eine abgewandelte Ausführungsform des erfindungsgemäßen Treibstangenschlosses mit Wechselfunktion in der Funktionsstellung "entriegelt",

Fig. 9

den Gegenstand nach Fig. 8 im Zuge des Öffnens über den Schließzylinder,

Fig. 10

den Gegenstand nach Fig. 8 im Zuge des Verriegelungsvorganges,

Fig. 11

den Gegenstand nach Fig. 10 im verriegelten Zustand und

Fig. 12

einen Querschnitt durch den Gegenstand nach Fig. 11.

In the following the invention will be explained in more detail with reference to drawings showing merely exemplary embodiments. Show it:

Fig. 1

a drive rod lock in a simplified, schematic side view,

Fig. 2

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

Fig. 3

the object after Fig. 2 in the course of locking by handle operation,

Fig. 4

the object after Fig. 3 locked in the functional position,

Fig. 5

the object after Fig. 4 in the functional position "locked" when unlocking by the lock cylinder,

Fig. 6

the object after Fig. 5 in the course of unlocking and

Fig. 7

the object after Fig. 6 in the functional position "pre-locked",

Fig. 8

a modified embodiment of the espagnolette lock according to the invention with interchangeable function in the functional position "unlocked",

Fig. 9

the object after Fig. 8 in the course of opening over the lock cylinder,

Fig. 10

the object after Fig. 8 in the course of the locking process,

Fig. 11

the object after Fig. 10 in the locked state and

Fig. 12

a cross section through the object after Fig. 11 ,

In the figures, a drive rod lock is shown with multi-point locking. Fig. 1 shows the basic structure of such an espagnolette lock. The Fig. 2 to 7 show a first embodiment of the espagnolette lock according to the invention without interchangeable function and the 8 to 12 show a second embodiment of the invention with interchangeable function.

According to Fig. 1 has such an espagnolette lock with multi-point locking on the one hand a central lock 1 and other attached to a common cuff 2 additional latches 3, which are actuated by arranged behind the cuff 2 espagnolettes 4. The additional latches 3 have according to the embodiment of the pivot bolt 5, but it can also be bolt latch and other types of locking can be used. The pusher and key-operated central lock 1 has a spring-loaded latch 6, a central latch 7, a lock nut 8 and a lock cylinder 9, wherein the lock cylinder 9 may be designed as a profile cylinder. In the lock nut engages at least one unillustrated pusher. The lock nut 8 works in the context of the invention, on the one hand on the latch bolt 6, via a not shown latch lever. On the other hand, the lock nut 8 works within the scope of the invention via a lock chain 10 on the locking elements 7, 3, both via the drive rod 4 on the additional locks 3 and on the central latch 7. For this purpose, the lock nut 8 next to the latch lever, not shown, a chain driver 11, which engages with a drive pin 12 in a recess 13 of the chain, so that in the course of the operation of the driver 11, the lock chain 10 is moved within the lock case K up and down, so that on the drive rods 4, the additional interlocks 3 on and be extended. Further, the central bar 7 is retracted and extended in the course of the operation of the driver 11. This is on the chain 10, z. B. in the lower region, a pin 14 or the like arranged, which engages in a guide groove 15 of the central bolt and transmits the vertical movement of the chain 10 in a horizontal movement of the bolt 7. This arises, for example, for a comparative analysis of Fig. 2 to 4 ,

Furthermore, in the region of the central bolt 7, a bolt lock 16 or a locking lever is provided, which in a "locking position" the lock chain 10th blocked, so that the lock can not be opened via handle operation. In this case, the bolt lock 16 by means of the locking lug 17 of a lock cylinder 9 from the lock chain 10 blocking "locking position" in a lock chain 10 releasing "Vorverriegelungsstellung" adjustable. This results, for example, from a comparative analysis of Fig. 5 to 7 ,

Overall, various functions of the espagnolette lock according to the invention can be triggered or set up by targeted actuation of the lock nut 8 or corresponding handle operation. First of all can be by pusher operation in an opening direction 18 with unlocked lock, the case 6 pull back on the not shown latch lever and open the door. If the door lock is in the "pre-locking position" in which the lock 16 does not block the lock chain 10, then not only the lock catch 6 is retracted or moved into an open position upon actuation of the lock nut 8 in the opening direction 18, but also becomes withdrawn via the lock chain 10 of the central latch 7 and the additional locking 3 and thus transferred into an "unlocking". Furthermore, via the operation of the lock nut 8 or via handle operation also the lock of the castle. For if the lock nut is actuated in the "unlocking position" when actuated in an opening direction 18 opposite closing direction 19, the lock bolt 10 of the central latch 7 and the additional locking 3 is transferred to the locking position. In addition, in the course of this lock, the bolt lock 16 automatically or automatically in the locked position. In the context of the invention, therefore, not only a pre-locked position, but actually a locked position is set up when locking the pusher, in which the lock can not be unlocked then via handle operation, but only with the use of the lock cylinder 9.

For this purpose, the bolt lock 16 is designed as a rotatably mounted in the lock case K and loaded by a locking spring 20 locking lever which has a locking cam 21. In the locked position, this locking cam 21 of the bolt lock 16 works against a blocking surface 22 of the lock chain 10, so that the bolt lock 16 blocks the lock chain 10 in the locked position and prevents the lock from opening (cf. Fig. 4 ).

The bolt lock 16 is associated with a cooperating with the bolt lock, rotatable locking plate 23, wherein the locking spring 20 acts between bolt lock 16 on the one hand and locking plate 23 on the other. On a stored in the lock case K spring, which operates against the bolt lock 16 is therefore omitted within the scope of the invention. The rotatably mounted with a fixed axis of rotation 24 in the lock case K bolt lock 16 has a locking pin 25 which engages in a locking groove 26 of the locking plate 23. The bolt lock 16 is held by the locking plate 23 in the "pre-locking position" (see. Fig. 7 ).

In the exemplary embodiment, the arcuate locking groove 26 has at least one first arcuate blocking section 26a and at least one second arcuate releasing section 26b, the blocking section 26a and the releasing section 26b having different arc radii. The locking bar 16 is held by the locking plate 23 when the locking pin 25 engages in the locking portion 26a and released when the locking pin 25 engages in the release portion 26b. In addition to the locking groove 26, the locking plate 23 has a control recess 27, for. B. a control groove, in which a control cam 28 of the central bolt 7 engages. Finally, the locking plate 23 has a bearing recess 29, in which the bearing pin 30 and the bearing shaft of the bolt lock engages, said bearing recess 29 is greater than the diameter of the bearing pin 30 and the bearing shaft, so that the locking plate 23 with a certain displacement play on the Rotary axis 24 of the bolt lock 16 is stored. The locking plate 23 is thus within the scope of the invention, as it were free on the central bar 7 and arranged under the central latch 7 locking latch 16 so that the position of the locking plate 23 and its functional position of the position of the central bar 7, of the spring 20 and is influenced by the locking pin 25 of the bolt lock 16. On the one hand, the position of the lock plate 23 affects the position of the lock 16, but on the other hand, the position of the lock 16 also affects the position of the lock plate 23, in cooperation with the position of the center bar 7. Finally, the position of the center bar 7 also directly affects the function the locking bar 16, because the central bar 7 has a locking extension 31, which holds in the "unlocking" the latch 16 in this position by the locking projection 31 against the locking bar 16, z. B. against the locking pin 25 of the lock 16 suppressed (see. Fig. 2 ).

The operation of the espagnolette lock according to the invention in the first embodiment will now be apparent from a comparative consideration of Fig. 2 to 7 ,

The starting point is the "zero position" according to Fig. 2 showing the espagnolette lock in an "unlocked position". The central bar 7 is withdrawn. The same applies to the auxiliary bolt 3. The pusher 8 is not actuated, so that the latch 6 is extended. By pressing the pusher 8 in the in Fig. 2 indicated opening direction 18 could be retracted over the latch bolt, not shown, the latch 6 and so open the lock. Such a functional position is not shown in the figures.

By pressing the pusher or the lock nut 8 in the direction opposite to the opening direction 18 locking direction 19 can now be the lock of the in Fig. 2 shown unlocking position according to Fig. 3 in in the Fig. 4 transfer illustrated locking position. Upon rotation of the nut 8 by handle operation forcibly also the driver 11 is rotated in the same direction of rotation. This pushes over the engaging in the guide groove 13 pin 12, the lock chain 10 down. This leads via the drive rods 4 for extending the auxiliary bolt 3 (not shown). In addition, a comparative analysis of the Fig. 2 to 4 in that the central bolt 7 is also extended. For this purpose, the lock chain 10 has in the lower region another pin 14, which in turn protrudes into the guide groove 15 of the central bar 7 and converts the vertical movement of the lock chain 10 in a horizontal movement of the central bar 7. Such a displacement of the central bar 7 would now lead without any further measures only to a "pre-locking position". In the context of the invention, however, by pressing the trigger according to Fig. 2 to 4 not just a pre-locking position, but actually a "locking position" according to Fig. 4 reached. Because the in Fig. 2 recognizable spring-loaded locking catch 16 is in the course of locking as it were automatically or automatically from the in Fig. 2 illustrated unlocking position in the in Fig. 4 transferred shown locking position. Because while in the functional position according to Fig. 2 the locking extension 31 of the central bar 7 abuts against the locking pin 25 of the lock 16 and thus prevents rotation of the lock 16 in the locked position, so when extending the central bolt 7, the lock 16 is released so that they by the force of the locking spring 20, the locking bolt sixteenth in the in Fig. 4 shown blocked position transferred. In this locking position of the locking cam 21 of the lock 16 abuts against a corresponding locking surface 22 on the lock chain 10, thus blocking the lock chain 10. It can be seen that the locking pin 25 of the lock 16 in all positions according to Fig. 2 to 4 in the lower release portion 26 b of the locking groove 26 of the locking plate 23 is located. This means that the locking plate 23 can not prevent the rotational movement of the bolt lock 16 in this functional position, so that the bolt lock 16 unhindered in the locked position Although the geometric conditions and in particular the relative position of the control cam 28 of the central bar 7 relative to the spring lug 20 'of the locking spring 20 try to rotate the locking plate 23 in a clockwise direction. However, this is prevented by that the locking pin 25 of the locking bar 16 is in the lower release portion 26 b of the locking plate 23, wherein the radius of this release portion 26 b does not correspond to the locking plate 23 and thus prevents rotation.

The lock is now in the Fig. 4 shown locking position, so it can not be opened or unlocked on the door handle. To unlock an operation of the lock cylinder 9 is now required. This will be based on a comparative analysis of the Fig. 5 to 7 directed.

A comparative analysis of the Fig. 4 and 5 shows the onset of rotational movement of the lock cylinder 9, so that the locking lug 17 engages in the control receptacle 32 of the bolt lock 16, wherein this control receptacle 32 is formed as a recess or fork receptacle. In the course of the rotational movement of the lock cylinder 9 in the clockwise direction, the locking lug 17 takes the bolt lock 16 with it and rotates it in the counterclockwise direction and against the force of the locking spring 20. A comparative examination of Fig. 5 to 7 shows that in the course of this rotational movement of the locking pin 25, the locking groove 26 of the locking plate 23 moves up and thereby passes from the release portion 26b in the locking portion 26a of the locking groove 26 (see. Fig. 7 ). Leaves the locking lug 17 now the locking bar 16 and the fork holder 32 so tilts the spring-loaded locking plate 23 in the blocking position designed for this purpose and thus prevents the turning back of acted upon by the same spring inner latch or the bolt lock 16. The lock 16 is thus of the locking plate 23 according to Fig. 7 held in the "Vorverriegelungsstellung".

Now the lock, starting from the Vorverriegelungsstellung according to Fig. 7 be opened by operating the pusher and consequently rotation of the nut 8 in the opening direction. In the course of this opening movement, therefore, not only the case 6 is withdrawn, but on the lock chain 10 and the central latch 7 and additional latches 3 is withdrawn, so that then again in Fig. 2 shown unlocked position is achieved.

Of particular importance is now within the scope of the invention that, starting from the Vorverriegelungsstellung according to Fig. 7 The lock can also be returned to the locking position by means of the key, in that the lock cylinder 9 is turned back counterclockwise and the locking lug 17 engages again in the fork receptacle 32 and the lock catch 16 in the locking position according to FIG Fig. 5 transferred. However, there is a clear limitation of the rotational movement of the locking lug. Consequently, only clearly defined states are possible. A constant spinning of the lock cylinder and the achievement of any positions is prevented.

The basis of the Fig. 2 to 7 Functions described are also in the modified embodiment according to Fig. 8 to 10 realized. In addition, in this embodiment, a so-called change function is now integrated. This is in addition to the in the Fig. 8 to 10 illustrated change lever 33 is provided, which is connected at its upper end to the latch lever 34, which operates in particular on the latch bolt 6. With its lower end, the change lever 33 cooperates with the lock cylinder 9, ie, the locking lug 17 of the lock cylinder 9 operates on the change lever 33 so that in the course of the lock cylinder rotation not only the lock 16 is affected, but also the possibility exists in the unlocked position via the lock cylinder 9, the latch 6 back. If the change lever 33, starting from the in Fig. 8 illustrated zero position by the locking lug 17th lifted the profile cylinder 9, so this pulls on the latch lever 34, the case 6 back. This is not shown in the figures.

When ausschließem or extended central latch 7, the change lever 33 is guided over the rotation range of the locking lug 17, so that the lock can be unlocked and locked. The central bar 7 has a driver for this purpose. With einschließem central latch of the lever is pushed back again. The trap can be retracted again via the locking nose. This can be the basis of the Fig. 2 to 7 described essential functions of the invention combine in a particularly simple manner with a change function.

Claims (12)

Espagnolette lock with multi-point locking, with a handle-operated and key-operated central lock (1) with lock latch (6), central latch (7), lock nut (8) and lock cylinder (9) and one or more additional locks (3) which are connected via one or more drive rods ( 4) are actuated,
wherein the lock nut (8) operates on the one hand on the lock latch (6) and on the other hand via a lock chain (10) on the central latch (7) and the drive rods (4),
wherein a bolt lock (16) by means of z. B. the locking lug (17) of a lock cylinder (9) from a lock chain (10) blocking "locking position" in a lock chain (10) releasing "Vorverriegelungsstellung" is adjustable,
wherein the lock nut (8) in the "Vorverriegelungsstellung" of the bolt lock (16) when operated in an opening direction (18) on the one hand the latch (6) in an open position and on the other hand via the lock chain (10) the central latch (7) and the additional locks ( 3) in an "unlocking" transferred and
wherein the lock nut (8) in the "unlocking position" when actuated in an opening direction (18) opposite closing direction (19) on the lock chain both the central bolt (7) and the additional locks (3) and the bolt lock (16) in the " Locking position "transferred, characterized in that the bolt lock (16) as a rotatably mounted and by means of a locking spring (20) loaded locking lever with a locking surface, for. B. or a locking cam (21) is formed, which in the locked position against a corresponding locking surface (22) of the lock chain (10) is applied. Lock according to claim 1, characterized in that the bolt lock (16) is associated with a locking lock cooperating, rotatable locking plate (23), wherein the locking spring (20) between the bolt lock (16) on the one hand and locking plate (23) on the other hand acts. Lock according to claim 2, characterized in that rotatably mounted in the lock case (K) bolt lock (16) has a locking pin (25) which in a locking recess, for. B. locking groove (26), the locking plate (23) engages. Lock according to claim 2 or 3, characterized in that the bolt lock (16) by the locking plate (23) is held in the Vorverriegelungsstellung. Lock according to claim 3 or 4, characterized in that the arcuate locking groove (26) at least a first arcuate locking portion (26a) and at least a second arcuate release portion (26b), wherein the locking portion (26a) and the release portion (26b) have different radii of curvature wherein the locking bolt (16) is held by the locking plate (23) when the locking pin (25) engages the locking portion (26a) and the locking bolt (16) is released when the locking pin (25) in the release portion (23) 26b) engages. Lock according to claim 5, characterized in that the locking plate is held in position by the bolt lock (16) when the locking pin (25) engages in the release portion. Lock according to one of claims 2 to 6, characterized in that the locking plate (23) has a control recess, for. B. control groove (27), in which a control projection, z. B. control cam (28), the central bolt (7) engages. Lock according to claim 7, characterized in that the blocking plate (23) is pressed by the spring in different directions of rotation as a function of the position of the control projection (28) in the control groove (27). Lock according to one of claims 1 to 8, characterized in that the bolt lock (16) in the "unlocking" of the central bolt (7) is held, preferably a locking extension (31) of the central bolt (7) against a locking projection of the bolt lock (7). 16), z. B. against the locking pin, is applied. Lock according to one of claims 1 to 9, characterized in that the bolt lock (16) has a control cam, for. B. control receptacle (32), on which the locking lug (17) in the course of unlocking and optionally locking works, or in which the locking lug (17) engages. Lock according to one of claims 1 to 10, characterized in that the locking plate (23) is mounted with displacement play on the axis of rotation (24) of the bolt lock (16) and to a bearing recess (29) which is larger than the bearing pin (30). or the bearing shaft of the bolt lock (16). Lock according to one of claims 1 to 11, characterized in that between the lock cylinder (9) and the latch (6), a change lever (33) operates, which retracts the latch when key operation.

Images