EP2584123A1 - Lock for a window, door or similar - Google Patents

Abstract

The lock (1) has a locking element i.e. lock bar, convertible from a locking state into an unlocking state by operation of an actuatable unlocking drive. A switchable locking device (22) i.e. stop valve (23), locks the drive against transfer of the locking element into the locking state in a locked condition of the locking device. A switchable blocking device (35) blocks the locking device in an unlocked condition against automatic transfer into the locked state, in a blocked state and allows automatic transfer of the locking device into the locked condition, in a release state.

Description

• ● mit einem Verriegelungselement,
• ● mit einem betätigbaren Entriegelungsantrieb, durch dessen Betätigung das Verriegelungselement aus einem Verriegelungszustand in einen Entriegelungszustand überführbar ist sowie
• ● mit einer schaltbaren Sperrvorrichtung für den Entriegelungsantrieb, die aus einem sperrenden Zustand in einen entsperrenden Zustand und selbsttätig aus einem entsperrenden Zustand in einen sperrenden Zustand überführbar ist, wobei die in einem sperrenden Zustand befindliche Sperrvorrichtung den Entriegelungsantrieb gegen eine Überführung des in einem Verriegelungszustand befindlichen Verriegelungselementes in einen Entriegelungszustand sperrt.

The invention relates to a lock for a door, a window or the like,

• ● with a locking element,
• ● with an actuatable unlocking drive, by the actuation of the locking element can be converted from a locked state to an unlocked state and
• ● with a switchable locking device for the unlocking drive, which can be converted from a blocking state to an unlocking state and automatically from an unlocking state into a blocking state, wherein the locking device located in a blocking state the unlocking drive against transfer of the locking element in a locked state locks in a unlocked state.

Such a lock is disclosed in EP 1 672 153 A1 , The prior art lock has a latch formed as a locking element and a lever-operated latch drive, which also serves as Entriegelungsantrieb and as a locking drive. Part of the latch drive is a Slider plate that can be moved by depressing and by pivoting the pusher in opposite directions along a lock plate. In a control slot of the slide plate engages a mounted on the bolt guide pin. Due to a corresponding shape of the control slot depressing the pusher and a resulting movement of the slide plate causes the excluded in a locking position outside a lock case latch is retracted into the interior of the lock case in an unlocked position. By pivoting the pusher upwards and the associated movement of the slide plate, the latch located in the unlocking position is moved into the locking position. By means of a switchable locking device of the unlocking drive of the prior art lock can be locked against movement of the excluded in the locking position latch in the unlocked position. Essential components of the locking device are an open-edged recess on the slide plate of the latch drive and provided on a locking slide locking lug. The latch is in the locked position and the locking lug of the locking slide is engaged in the open-edged recess of the slide plate, so can not move the slide plate by depressing the pusher in a sense the latch from the locking position in the unlocking position. In order to enable such a movement of the slide plate, first the locking lug on the locking slide has to be disengaged by key operation of the locking slide from the open-edged recess of the slide plate and thereby the locking device are transferred to an unlocking state. By the key operation of the locking slide is moved against the action of a restoring force in a position in which it locks with outside of the open-edged recess of the slide plate arranged locking lug with a retaining device. If now the pusher depressed and consequently the bolt from the locking position in the Retracted unlocking, the bolt moves with a bolt tail, the retainer for the gate valve and the gate valve is released from the retainer. By pivoting upward of the pusher and an associated displacement of the slide plate, the bolt is excluded again in the locked position. Due to the case carried out by the slide plate reaches the provided on the slide plate edge-open recess at the level of the locking slide and this moves under the action of him restoring force automatically in a position in which engages the locking lug of the locking slide in the open-edged recess of the slide plate. Thus, the locking device is again in a locking state. A transfer of the bolt from the locking position into the unlocked position again requires a previous key operation of the locking slide.

The present invention has set itself the goal of extending the functionality of the lock known from the prior art.

According to the invention this object is achieved by the lock according to claim 1. In the case of the invention, a switchable by means of a switching device blocking device for the locking device of the unlocking drive is therefore provided. If the blocking device is switched to a blocking state, the blocking device is prevented from automatically switching from an unlocking state to a blocking state. Nevertheless, a manipulative, that is, a transfer of the blocking device to the blocking state by a separate action of the user, is possible. Alternatively, the blocking device according to the invention can be switched to a release state. The lock according to the invention is then in a functional state, in which the switchable locking device automatically, that is "automatically", from a unlocking state switches to a blocking state. In this way, one and the same lock can satisfy fundamentally different user needs. The user has the option of automatically utilizing the increased security of the lock associated with a locking state of the locking device each time the locking element is placed in the locked state, or whether he or she chooses the increased security of the lock on it Cases limited. A restriction of the blocking state of the locking device to individual cases, for example, be useful if the lock must be locked and unlocked several times within a relatively short time. If the blocking device for the locking device is transferred into the blocking state, then the lock can be unlocked again after each locking, without first the locking device would have to be transferred from a locking state to an unlocking state. Nevertheless, it is possible for periods in which no or only a few locking and unlocking operations are to be expected, for example overnight, to increase the security of the lock by manipulative transfer of the locking device into a blocking state.

Particular embodiments of the invention according to claim 1 emerge from the dependent claims 2 to 15.

In the case of Erfindungsbauart according to claim 2, a blocking state and an unlocking state of the locking device is effected by a corresponding movement of a blocking element. Depending on the switching state of the blocking device, the blocking element can automatically move from an unlocked position into a blocking position or manipulatively be moved from an unlocked position into a blocking position.

Claim 3 relates to a lock according to the invention comprising a blocking device with a blocking element, via which the blocking element arranged in an unlocking position is supported in the blocking state of the blocking device. The support of the blocking element via the blocking element is selected such that a manipulative transfer of the blocking element into a blocking position is possible.

In a further embodiment of the invention is evidently provided in claim 4 for switching the blocking device in the blocking state and / or in the release state, a switching device with a switching element, which is movable in a blocking switching position and / or in a release switching position. Preferred dimensions, the switching element is manually operated. It can be accessible at any time from a lock faceplate of the lock or concealed in the installation position of the lock. In the former case, the functional state of the lock can be easily changed. In the second case, the desired setting is preferably made prior to installation of the lock.

According to claim 5 is provided in a further development of the invention that the transfer of the blocking device is in a blocking state or in a release state by moving a blocking element in a blocking position or in a release position. The movement of the blocking element is effected by moving the switching element of the switching device in the blocking switching position or in the release switching position.

A provided with a manual switching device for the blocking device, as provided in the case of Erfindungsbauart according to claim 6, for example, the possibility of the switching element of the switching device spatially separated from the blocking element of the blocking device and thereby spatially almost arbitrary to arrange. In addition, the transmission by an appropriate translation to allow operation of the switching element with little effort. A lever mechanism is recommended as a manual transmission in particular due to its robustness and its simple design.

A particularly compact design of the lock according to the invention results when the switching device for the blocking device and / or the blocking device itself is at least partially integrated in the locking device, preferably in the blocking element, or are (claim 7). In a preferred embodiment of the invention, a lock case of the lock according to the invention is used as part of the blocking device for the locking device or for the blocking element.

For manipulative transfer of the locking device in a blocking state with effective blocking device lockable element of the blocking device and / or the locking element supported by the blocking element of the locking device can be deflected on the lock according to the invention. The deflection can be done in particular against the action of a restoring force.

In a further preferred embodiment of the invention, the blocking element of the effective block device for manipulative transfer of the locking device in a locking state by means of an actuating device, in particular by means of a key, from the blocking position deflected (claim 9).

In another embodiment of the invention, the blocking element of the effective blocking device in the blocking position on the switching element and / or on a transmission element of the gearbox of the switching device for the blocking device supported and against the effect This support can be deflected to thereby manipulate the locking device in a locking state to be able to transfer (claim 10).

If the blocking device for the locking device is switched to the release state, then the automatic transfer of the locking device takes place from an unlocking state to a blocking state under the action of a blocking element of the locking device in the sense of an automatic movement in the locking position acting force (claim 11).

In a preferred embodiment of the invention, this force is a restoring force which builds up when the blocking element is moved from a blocking position to an unlocking position (claim 12).

In the interest of the functionality of the lock according to the invention must be ensured that the blocking element of the locking device then moves automatically from an unlocked position into a blocking position when the locking element is in the locked state. To ensure this, in the case of Erfindungsbauart according to claim 13, a switchable restraint device is provided, which defines in a holding state arranged in an unlocking locking element of the locking device against an automatic movement in a locked position and the automatic movement of the locking element from an unlocked position into a blocking position allows when the locking element is in the locked state.

To automate the processes and in the interest of realizing the functions of the lock according to the invention with as few components as possible in a preferred embodiment of the invention that the Retaining device for the locking element arranged in an unlocking position can be switched by the transferred from the locked state in the unlocking locking element from the holding state to the release state. After the transfer of the retaining device in the release state, the blocking element is movable into a blocking position as soon as the locking element is again transferred to the locking state (claim 14).

From a blocking position, the blocking element of the locking device according to the invention by means of an actuating device, preferably by means of a key, moves in an unlocked position (claim 15).

In a preferred embodiment of the invention, that actuating device is provided as an actuating device for the blocking element, which also serves for the manipulative lifting of the locking element connected via the blocking element of the blocking device connected in the blocking state of the blocking element arranged in an unlocking position.

Figuren 1a bis 3b

ein Türschloss erster Bauart mit einer in den blockierenden Zustand geschalteten Blockiervorrichtung für eine Sperrvorrichtung eines Entriegelungsantriebes,

Figuren 4a bis 6b

das Türschloss gemäß den Figuren 1a bis 3b bei Freigabezustand der Blockiervorrichtung,

Figuren 7a bis 8b

ein Türschloss zweiter Bauart mit einer in den blockierenden Zustand geschalteten Blockiervorrichtung für eine Sperrvorrichtung eines EntriegeLungsa ntriebes,

Figuren 9a bis 11

das Türschloss gemäß den Figuren 7a bis 8b bei Freigabezustand der Blockiervorrichtung,

Figuren 12a bis 14b

ein Türschloss dritter Bauart mit einer in den blockierenden Zustand geschalteten Blockiervorrichtung für eine Sperrvorrichtung eines Entriegelungsantriebes,

Figur 15

die Blockiervorrichtung gemäß den Figuren 12a bis 14b in einer Explosionsdarstellung,

Figuren 16a, 16b

die Blockiervorrichtung gemäß den Figuren 12a bis 15 beim Umschalten von dem blockierenden Zustand in den Freigabezustand und

Figuren 17a bis 19

das Türschloss gemäß den Figuren 12a bis 16b bei Freigabezustand der Blockiervorrichtung.

The invention will be explained in more detail below with reference to exemplary schematic illustrations. Show it:

FIGS. 1a to 3b

a door lock of the first type having a blocking device connected to the blocking device for a locking device of an unlocking drive,

FIGS. 4a to 6b

the door lock according to the FIGS. 1a to 3b in the release state of the blocking device,

FIGS. 7a to 8b

a door lock of the second type with a blocking device connected in the blocking state for a locking device of an unlocking drive,

FIGS. 9a to 11

the door lock according to the FIGS. 7a to 8b in the release state of the blocking device,

Figures 12a to 14b

a door lock of the third type having a blocking device connected in the blocking state for a locking device of an unlocking drive,

FIG. 15

the blocking device according to the Figures 12a to 14b in an exploded view,

FIGS. 16a, 16b

the blocking device according to the FIGS. 12a to 15 when switching from the blocking state to the release state and

FIGS. 17a to 19

the door lock according to the FIGS. 12a to 16b at release state of the blocking device.

In the FIGS. 1a to 6b a lock 1 is shown with the essential for the present description lock components inside a lock case 2 and removed lock case cover. The lock 1 is intended for mounting in a rabbet-shaped cutout of a door leaf. A lock plate of conventional design, which rests in the installed position of the lock 1 on the rebate surface of the relevant door leaf, for the sake of simplicity is not shown.

The lock 1 has as a locking element on a bolt 3, which can be converted by means of a latch drive 4 in a locking state and in an unlocked state. Accordingly, the latch drive 4 forms both a locking drive and a Entriegelungsantrieb.

To actuate the latch drive 4 is used in FIG. 1a merely indicated pusher 5. With a square in cross-section pusher the pusher 5 engages in a square socket 6 on a pusher 7 a. A spring-actuated return mechanism 8 of conventional design ensures in the usual way that the pusher 5 resets itself after an operation in its initial position.

In addition to the pusher 5 and the pusher 7, the latch drive 4 comprises a plate-shaped latch drive slide 9, which is plate-shaped in the example shown. The latch drive slide is mounted in the interior of the lock case 2 so as to be displaceable in the direction of a double arrow. In the figures, which are numbered with the addition "a" and in the Figures 11 . 13 . 15 . 18 and 19 the latch drive slide 9 is shown. In the other figures, the bolt drive slide 9 is omitted or hidden. Missing the latch drive slide 9, the view is released on the lock parts, which are arranged on the remote from the viewer of the figures back of the latch drive slide 9.

In an arcuate drive slot 10 of the latch drive slide 9 engages a drive pin 11 which is attached to a drive arm 12 ( FIG. 1b ). Relative to the follower 7, the drive arm 12 is limited pivotally.

The latch drive slide 9 is provided at its end lying to the latch 3 with an open-edged recess 13. This adjacent the latch drive slide 9 is riveted to a control pin 14, which projects at the rear of the latch drive slide 9 and engages in a control slot 15 on the latch 3. The control slot 15 has two end-parallel end portions, which by a in FIG. 1a recognizable inclined slot portion 16 are interconnected. In FIG. 1a is the control pin 14 of the latch drive slide 9 in the interior of the top in the figure, hidden by the latch drive slide 9 Stulpparallelen portion of the control slot 15th

Like, for example FIG. 1b it can be seen, under the bolt drive slide 9, a latch drive slide 17 of a latch drive 18 is guided in the direction of a double arrow movable parallel to the lock plate, not shown. A longitudinal end of the trap drive slide 17 is a stop surface 19 on the follower 7 opposite. The other longitudinal end cooperates with a reversing gear 20 and about this with a case 21 of the lock 1.

In their basic structure and in their basic operation of the trap drive 18 and the Ftiegelantrieb 4 largely agree with the case drive and the latch drive EP 1 672 153 A1 match. Reference is made to the content of this document to supplement the present description.

For the latch drive 4, a switchable locking device 22 is provided.

The locking device 22 comprises a locking element in the form of a locking slide 23. This has several functional parts, in detail designed as a locking lug 24 locking member, a multi-angled actuating surface 25, a blocking lug 26 and a retaining projection 27. At the remote from the viewer of the figures Rear side is the locking slide 23 with guide grooves on guide rails 28 (FIG. FIG. 3a ) placed on the wall of the lock case 2 and thereby guided vertically movable to the lock plate in the direction of a double arrow. A mounted on the lock case 2 and designed as a leg spring locking spring 29 is biased and acts on the locking slide 23 in the direction of the bolt drive slide 9. Its open-edged recess 13 is also part of the locking device 22 for the latch drive. 4

Adjacent to the locking slide 23, a retaining device 30 for the locking slide 23 is arranged in the interior of the lock case 2. The retaining device 30 comprises a Rückflalteschieber 31, which is guided on the lock case 2 displaceable parallel to the front plate and on its side facing the locking slide 23 side has an overlapping projection 32. A biased return spring 33 acts on the retaining slide 31 in the direction of the locking slide 23. At the back of the engaging projection 32 remains between the retaining slide 31 and the locking slide 23, a gap in which a bolt tail 34 of the bolt 3 (Fig. FIG. 2a ) can dive.

On the side facing the lock plate side of the locking slide 23 and the retaining device 30, a blocking device 35 for the locking device 22 and an associated switching device 36 are arranged.

The blocking device 35 comprises a blocking lever 37 which is pivotally mounted on a bearing pin 38 connected to the wall of the lock case 2. One of the legs of a locking spring 39 formed as a leg spring is supported on the blocking lever 37, the second leg of the blocking spring 39 on a shift lever 40. The shift lever 40 is also pivotable on the bearing pin 38 of the lock case 2 stored. About the blocking spring 39, the shift lever 40 forms an abutment for the blocking lever 37, relative to the blocking lever 37 is deflected against the action of a force exerted by the blocking spring 39 restoring force. Under the action of the biased locking spring 39, the blocking lever 37 is located on a rotation stop 57 of the shift lever 40 (FIG. FIG. 3b ) at.

The shift lever 40 is part of a gearshift 41 designed as a lever mechanism of the switching device 36 for the blocking device 35. As a further transmission element, the gearbox 41 comprises a gear slide 42 which is displaceably guided on the rear side of the lock plate Stulpparallel. With a to the blocking lever 37 facing the stop end 43 of the gear shifter 42 engages in the FIGS. 1a to 2b The free end of the blocking lever 37. At the opposite longitudinal end of the gear slide 42 has a locking clip 44 with two locking receptacles 45, 46 which cooperate with a latching pin 47 on the wall of the lock box 2 ( FIG. 2b ).

At the rebate side of the lock 1 and the gear slide 42 is a manually operable switching element 48 before. The switching element 48 protrudes through a window-like opening in the lock plate, not shown, at the back of the gear slide 42 is guided stulpparallel. A switching cam 49 on the side remote from the switching element 48 side of the gear slide 42 cooperates with a corresponding position of the gear slide 42 along the lock plate with a button 50 on the shift lever 40 ( FIG. 2b ).

On the side remote from the blocking device 35 side of the locking slide 23, a recess 51 is provided for a conventional lock cylinder on the wall of the lock box 2. The lock cylinder has, as usual, only in FIG. 1b indicated driver 52, the can be pivoted by key operation in a blocking direction 55 or in an unlocking direction 56.

In the FIGS. 1a and 1b the bolt 3 is withdrawn into the lock case 2 and is demensprechend in the unlocked state. The switching element 48 of the switching device 36 for the blocking device 35 is moved along the lock plate in the blocking switching position. As a result, the switching cam 49 acts on the gear slider 42 of the switching device 36, the button 50 on the shift lever 40. The shift lever 40 in turn acted upon by the blocking spring 39, the blocking lever 37, which at its free end with a blocking element in the form of a blocking stop 60 on the blocking approach 26th the locking slide 23 rests and thereby pushes the locking slide 23 against the action of the force exerted on this by the locking spring 29 force against that wall of the lock case 2, which is opposite the lock plate. The blocking device 35 is thus switched to the blocking state.

Due to the position occupied by the locking slide 23 as a result of the action of the blocking lever 37, the locking lug 24 of the locking slide 23 is outside the open-edged recess 13 on the Riegefantriebsschieber 9. The locking slide 23 thus assumes its unlocked position, the locking device 22 is in the unlocking state.

Since the latch 3 is retracted into the lock case 2, the latch tail 34 is immersed in the clearance between the retaining slide 31 of the restraint 30 and the lock slider 23. The bolt tail 34 holds the retaining slide 31 against the action of the force exerted by the return spring 33 force in a position in which the retaining slide 31 is spaced apart from the retaining projection 27 on the locking slide 23 in the direction parallel to the armature.

Due to the unlocking state of the locking device 22, the pusher 5 in a locking direction 53 (FIG. FIG. 1a ) pan. This pivotal movement is via the pusher 7 and the drive arm 12 in a linear movement of the latch drive slide 9 in FIG. 1a implemented to the right. The bolt drive slide 9 drives in this movement on the engaging in the control slot 15 on the latch 3 control pin 14, the bolt 3 in the direction of exclusion. If the bolt 3 is excluded to the maximum, the pusher 5 can be pivoted back into its starting position by means of the return mechanism 8 due to an existing in the relevant direction limited rotational mobility of the follower 7 relative to its pivot position retaining drive arm. This results in the conditions according to the FIGS. 2a, 2b , The open-edged recess 13 of the latch drive slide 9 is the locking lug 24 on the locking slide 23 with distance opposite.

The latch 3 is now in the locked state. The bolt tail 34 has left the gap between the retaining slide 31 and the locking slide 23 and the retaining slide 31 has been displaced Stulpparallel by the return spring 33 into a position in which the retaining slide 31 engages over the retaining projection 27 of the locking slide 23 with the engaging projection 32. As before, the blocking device 35 are in the blocking state and the locking device 22 in the unlocking state.

If the lock 1, starting from the functional state according to FIGS. 2a, 2b be unlocked again, this is possible only by pivoting the pusher 5 in a unlocking 54. Based on these Pivoting movement of the pusher 5, the case 21 is moved via the latch drive 18 into the interior of the lock case 2. In addition, the latch 3 from the locking position of FIGS. 2a, 2b withdrawn into the unlocked position. After releasing the pusher 5 and its provision by the return mechanism 8, the conditions arise again according to the FIGS. 1a, 1b ,

Should be based on the situation according to FIGS. 2a and 2b a functional state of the lock 1 are generated with increased security, as is still connected in the blocking state blocking device 35, the locking device 22 manipulative from the unlocking state according to the FIGS. 2a, 2b to convert into the blocking state. For this purpose, the driver 52 of the seated in the recess 51 of the lock case 2 lock cylinder is pivoted in the reverse direction 55 by key operation. The driver 52 runs on the opposite him in its direction of movement actuating surface 25 of the locking slide 23. With continued pivotal movement of the driver 52 this moves the locking slide 23 from its position in accordance with the FIGS. 2a, 2b up. Due to the displacement of the locking slide 23 this passes with its retaining projection 27, the retaining slide 31 of the retaining device 30 and with its blocking lug 26 the blocking lever 37 of the blocking device 35. The movement of the locking slide 23 relative to the retaining slide 31 is determined by the corresponding selected geometry of the contact surfaces on the Retaining projection 27 of the locking slide 23 on the one hand and on the retaining slide 31 on the other hand allows. These contact surfaces are chamfered such that the retaining slide 31 due to the sliding movement of the locking slide 23 from the in the FIGS. 2a, 2b shown position against the action of the return spring 33 is displaced Stulpparallel to the left and thereby pass the retaining projection 27 on the gate valve 23. Of the Blocking approach 26 of the locking slide 23 deflects in the sliding movement of the locking slide 23, the blocking lever 37 and the blocking stopper 60 against the action of the biased locking spring 39 in the FIGS. 2a, 2b counterclockwise relative to the acted upon by the switching cam 49 shift lever 40 from. The sliding movement of the locking slide 23 is supported by the locking slide 23 acting on the locking spring 29. The sliding movement of the locking slide 23 is guided by the guide rails 28 on the housing of the lock case second

Due to the sliding movement of the locking slide 23 whose locking lug 24 runs into the open-edged recess 13 on the latch drive slide 9 a. This results in the conditions according to the FIGS. 3a, 3b , The locking device 22 is now in the locked state. The latch drive 4 is locked by the locking device 22 located in the blocking state against a transfer of the latch 3 located in the locking state in an i = ntriegeiungszustand.

If the lock 1 based on the situation in accordance with FIGS. 3a and 3b be unlocked, so first the locking device 22 is to be transferred back to the unlocking state. This is done by re-key operation and thereby by pivoting the driver 52 of the lock cylinder in the unlocking 56. The moving in the unlocking 56 driver 52 comes to the actuating surface 25 of the locking slide 23 to the system and pushes the locking slide 23 from the position according to the FIGS. 3a, 3b back to the position according to the FIGS. 2a, 2b , In the case of the movement performed by the locking slide 23, the retaining projection 27 on the locking slide 23 runs with its underside on the upper side of the engaging projection 32 on the retaining slide 31. With continued movement of the locking slide 23 is due to the taper of the mutual contact surfaces of the retaining slide 31 against the action of the return spring 33, starting from the position according to FIGS. 3a, 3b first shifted to the left before the retaining slide 31 is moved after passing the engaging projection 32 by the retaining projection 27 on the locking slide 23 by the return spring 33 back to that position in which the engaging projection 32 of the retaining slide 31, the retaining projection 27 on the locking slide 23rd overlaps.

The blocking lug 26 of the locking slide 23 moves in the return conversion of the locking device 22 in the unlocking state at the free end of the blocking lever 37 along. Due to the biasing by the prestressed blocking spring 39, the blocking lever 37 performs a pivoting movement from the position according to FIG FIG. 3b clockwise off. The pivoting movement of the blocking lever 37 ends when the blocking lever 37 runs onto the rotation stop 57 on the shift lever 40. Has the gate valve 23 its end position according to the FIGS. 2a, 2b reached, the blocking lever 37 again towers over the blocking lug 26 on the locking slide 23 with the blocking stop 60. Thus, the lock 1 is again in the operating state according to the FIGS. 2a, 2b ,

If the user of the lock 1 desires an automatic, that is to say automatic, transfer of the blocking device 22 from the unlocking state into the blocking state, the switching device 36 is to be actuated. For this purpose, the switching element 48 is manually from the position according to FIGS. 1a to 3b in the position according to FIGS. 4a to 6b postponed. Due to this displacement of the switching element 48 of the gear slide 42 of the switching device 36 locks on the locking receptacle 46 with the locking pin 47 of the lock case 2. Due to the associated with the displacement of the switching element 48 displacement of the gear slider 42, the projecting on the back of the gear slider 42 switching cam 49 moves away from the button 50 At the same time, a switching projection 58 of the gear slider 42 runs on the front side of the shift lever 40. In a sliding movement of the gear slider 42 in the FIGS. 1a to 3b to the left, the gear slide 42 pivots on the switching projection 58, the unit of blocking lever 37, blocking 39 and lever 40 to the bearing pin 38 from the pivoting position of the FIGS. 1a to 3b in the counterclockwise direction in the pivot position according to FIGS. 4a to 6b ,

The blocking lever 37 has thus moved out of the range of movement of the locking slide 23. In the now assumed pivot position, the unit of locking lever 37, blocking 39 and lever 40 is secured by the switching projection 58 on the transmission slide 42.

The switching element 48 is in the release switching position, the blocking device 35 is switched to the release state.

According to the FIGS. 4a, 4b is the latch 3 in the unlocked position. The bolt tail 34 is thus immersed in the space between the retaining slide 31 of the retaining device 30 and the locking slide 23 of the locking device 22 and ensures that the locking slide 23 is released from the retaining device 30. By the locking spring 29, the locking slide 23 is pressed against the rear end of the bolt 3. The locking slide 23 is located outside the open-edged recess 13 on the latch drive slide 9. The locking device 22 is accordingly in an unlocking state.

Is based on the conditions according to FIGS. 4a, 4b the pusher 5 is pivoted in the locking direction 53, so he drives on the pusher 7 and the drive arm 12, the latch drive slide 9 in the FIGS. 4a, 4b to the right. Due to the running of the bolt drive slide 9 Stulpparallelen movement of the bolt 3 by the interaction of the control pin 14 on the latch drive slide 9 and the control slot 15 on the latch 3 from the unlocked position according to the FIGS. 4a, 4b in the locking position according to the FIGS. 5a, 5b locked out.

The moving from the lock case 2 latch 3 follows the voltage applied to the rear end of the bolt 3 under the action of the locking spring 29 locking slide 23. In this case, the locking slide 23 runs with the locking lug 24 in the open-edged recess 13 on the latch drive slide 9, which is has moved due to the operation of the pusher 5 along the lock plate in a position in which the open-edged recess 13 of the locking lug 24 is opposite. Thus, the locking device 22 is automatically transferred to the blocking state. The return mechanism 8 rotates the pusher 7 in its output rotational position and thus the pusher 5 back to its initial pivot position.

If the latch 3 are to be moved back into the unlocked position, the blocking device 22 is first of all from the blocking state according to FIGS FIGS. 5a, 5b to be transferred to the unlocking state. This is done by key operation of the locking slide 23. By turning the key inserted into the lock cylinder, the driver 52 is pivoted in the unlocking direction 56 and consequently the locking slide 23 with the locking lug 24 disengaged from the open-edged recess 13 on the latch drive slide 9. In the manner described above, the locking slide 23 is locked with the retaining slide 31 of the retaining device 30. This results in the situation according to the FIGS. 6a, 6b , The retaining slide 31 engages over its retaining projection 32 of the retaining slide 27 of the locking slide 23rd If, on the basis of these conditions, the pusher 5 is pivoted in the unlocking direction 54, the latch drive slide 9 is displaced into the unlocking direction 54 FIGS. 6a, 6b to the left and thereby pulls the latch 3 back into the interior of the lock case 2. In addition, the case 21 is pulled into the lock case 2.

The bolt tail 34 enters the space between the retaining slide 31 and the locking slide 23 and thereby displaces the retaining slide 31 from the position according to FIGS FIGS. 6a, 6b parallel to the Schlossstulp to the left. As a result, the retaining device 30 releases the locking slide 23 and this moves due to the action of the biased locking spring 29 in the direction of the rear end of the bolt 3. All in all, this results in again in the FIGS. 4a, 4b When still in the release state switched blocking device 35, the locking slide 23 is now again for an automatic movement of the unlocked position according to the FIGS. 4a, 4b in the locked position according to the FIGS. 5a, 5b ready.

A castle 100, as it is in the FIGS. 7a to 11 is different from the lock 1 according to the Figures 1 to 6a essentially by the formation of a blocking device 135 and a switching device 136. Incidentally, the lock 1 and the lock 100 are largely identical in construction and function. Matching components are in the FIGS. 1a to 6b on the one hand and in the FIGS. 7a to 11 on the other hand provided with matching reference numerals.

The blocking device 135 has a blocking stop 160 as a blocking element. This is connected via a resilient connecting arm 161 to a gear slider 142 of the switching device 136. At his to the locking slide 23 of the locking device 22 lying down Side of the blocking stop 160 is provided with a ramp 162.

The transmission slide 142 is part of a manual transmission 141 and can be achieved by manually operating a switching element 148 parallel to the lock plate in the position according to FIGS. 7a to 8b or in the position according to FIGS. 9a to 11 be locked. On a projection 163 of the gear slider 142, a shift lever 140 is pivotally mounted with one of its two longitudinal ends. The opposite longitudinal end of the shift lever 140 is pivotally mounted on an axle journal 164 fixedly connected to the lock case 2. At the seated on the journal 164 end of the shift lever 140 is a switching cam 149 before. The switching cam 149 is associated with a retaining slide 131 of a retaining device 130. Notwithstanding the retention slide 31 according to the FIGS. 1a to 6b For example, the retaining slide 131 has an overlapping projection 132 with a substantially face-parallel overlapping surface. Accordingly, the surface at the top of a retaining projection 127 on the gate valve 23 is stulpparaliel.

In the FIGS. 7a to 8b is the switching element 148 of the switching device 136 in the blocking switching position. At the same time, the locking device 22 according to the FIGS. 7a to 7c switched to the unlocking state. The blocking stop 160 of the blocking device 135 engages in the FIGS. 7a to 7c the blocking lug 26 on the locking slide 23 and thereby holds the locking slide 23 against the action of the locking slide 23 acting on the locking spring 29 in a position in which the locking lug 24 is outside the open-edged recess 13 on the latch drive slide. Of the retaining device 130 of the locking slide 23 is released.

Is based on the conditions according to FIGS. 7a to 7c pivoted the pusher 5 in the unlocking 54, the bolt 3 is about the latch drive slide 9 from the locking position according to the FIGS. 7a to 7c moved back into the interior of the lock case 2 in the unlocked position. The gate valve 23 retains the position according to FIGS. 7a to 7c at. It is therefore easily possible to exclude the latch 3 by pivoting the pusher 5 in the locking direction 53 back into the locked position and to move the latch 3 back into the unlocked position by subsequent pivoting of the pusher 5 in the unlocking 54.

If the latch 3 assumes its locking position and the locking device 22 is in effective blocking device 135 in the unlocking state according to the FIGS. 7a to 7c Thus, the locking device 22 can manipulatively lead from the unlocking state to the blocking state. For this purpose, the driver 52 of the lock cylinder is to pivot by key operation in the locking direction 55. The driver 52 runs on the actuating surface 25 on the locking slide 23 and moves the locking slide 23, starting from the position in accordance with the FIGS. 7a to 7c in the position according to Figures 8a, 8b , The acted upon by the driver 52 and the locking spring 29 locking slide 23 of the blocking stop 160 deviates laterally due to its resilient connection to the gear slide 142 and due to the geometry of the ramp 16.

Due to the sliding movement of the locking slide 23, the locking lug 24 runs into the open-edged recess 13 on the latch drive slide 9 and it results in the conditions according to the Figures 8a, 8b , The latch drive 4 is now locked by the locking device 22 against a transfer of the bolt 3 from the locking position to the unlocked position. Before re-unlocking the lock 1 must first the locking slide 23 by key operation back into the position according to the FIGS. 7a to 7c be moved back. As soon as the locking slide 23 comes into contact with the wall of the lock case 2 opposite the lock plate during this movement, the lock stop 160 springs into its blocking position according to FIGS FIGS. 7a to 7c back and the blocking device 135 is effective again. Thus, the locking device 22 is again permanently in the unlocking state and the latch 3 can be arbitrarily moved between the unlocking and the locking position back and forth without the locking device 22 switches from the unlocking state in the blocking state.

If the security of the lock 100 is to be increased, then the switching device 136 is to be actuated by manual displacement of the switching element 148 in the release switching position. The switching element 148 takes the gear slide 142 from the position according to the FIGS. 7a to 8b in the position according to FIGS. 9a to 11 With. Due to the movement of the gear slide 142, the blocking stopper 160 moves relative to the gate valve 23 in a position in which it is outside the range of movement of the gate valve 23. By shifting the switching element 148 is on the extension 163 of the lever 140 from the position according to the FIGS. 7a to 8b in the position according to FIGS. 9a to 11 pivoted. Due to the pivoting movement of the shift lever 140, the control cam 149 connected therewith in a rotationally fixed manner releases the retention slide 131. As a result, the retaining slide 131 under the action of a return spring 133 can displace stulpparallel to the locking slide 23 out and engage the retaining projection 127 on the locking slide 23 with the engagement projection 132. With excluded latch 3 and transferred by key operation in the unlocking state and secured by the retainer 130 Locking device 22 is the lock 100 in the FIGS. 9a to 9c shown.

Is starting from this situation by pivoting the pusher 5 in the unlocking 54 of the bolt 3 from the locking position according to the FIGS. 9a to 9c in the unlocked position according to FIG. 10 moves, the latch 3 with the bolt tail 34 dips into the space between the retaining slide 131 of the retainer 130 and the locking slide 23 of the locking device 22 and moves the retaining slide 131 in the position according to FIG. 10 , Thereby, the retainer 130 releases the lock slider 23, and the lock slider 23 can pass the engagement projection 132 on the retention slider 131 with its retaining projection 127 before striking the rear end of the bolt 3. Now, the latch 3 by pivoting the pusher 5 in the locking direction 53 from the unlocked position according to FIG. 10 in the locking position according to FIG. 11 excluded, then the locking slide 23 automatically follows the bolt 3 under the action of the locking spring 29 until the locking lug 24 on the locking slide 23 enters the open-edged recess 13 on the latch drive slide 9 ( FIG. 11 ).

Once the bolt tail 34 has left the gap between the retaining slide 131 and the locking slide 23 due to the movement of the bolt 3 in the locking position, the retaining slide 131 moves under the action of the return spring 133 back to the position according to the FIGS. 9a to 9c ,

If the latch 3 again from the locking position according to FIG. 11 are moved to the unlocked position, the locking device 22 is initially by key operation from the locking state according to FIG. 11 to be transferred to the unlocking state. Due to the Key operation, the gate valve 23 moves from the position according to FIG. 11 down until it strikes with its rear end on the opposite of the lock plate wall of the lock case 2. In this movement, the locking slide 23 initially runs with its underside on the slanted top of the engaging projection 132 on the retaining slide 131. With continued movement of the locking slide 23 this displaced with the retaining projection 127, the retaining slide 131 against the force of the return spring 133 laterally. When the lock slider 23 has passed the engaging projection 132 of the retaining slider 131 with the retaining projection 127, the retaining slider 131 moves back to the position shown in FIGS FIGS. 9a to 9c and 11 back. Thus, the locking slide 23 is again fixed by the retaining device 130. The bolt 3 can now be moved back by pivoting the pusher 5 in the unlocking 54 in the unlocked position. In this case, the bolt tail 34 dives back into the space between the retaining slide 131 and the locking slide 23 and it again results in accordance with the conditions FIG. 10 , The locking device 22 is thus ready again for an automatic transfer from the unlocking state to the blocking state.

At one in the FIGS. 12a to 19 Lock 200 shown are a part of a blocking device 235 and a switching device 236 in the locking device 22, in detail in the blocking element or gate valve 23, integrated. Otherwise, the lock 200 is basically identical in construction and mode of operation to the lock 1 according to FIGS FIGS. 1a to 6b match. Matching components of the locks 1 and 100 are assigned matching reference numerals.

A locking bolt 265 ( FIG. 15 ) of the lock 200 forms with a spherical end 260 a blocking element of the blocking device 235 and with a bolt shank 248 a switching element of the switching device 236. The bolt shank 248 is provided at its longitudinal end opposite the spherical end 260 with a circumferential groove 266 (FIG. FIG. 16b ) Mistake. A locking spring 239 configured as a helical spring rests on the bolt shank 248 of the latching bolt 265.

Together with the seated on the bolt shank 248 locking spring 239 of the locking pin 265 is inserted into a receiving bore 267 on the locking slide 23. The bottom of the receiving bore 267 is provided with a hidden in the figures passage opening whose diameter relative to the diameter of in FIG. 15 visible mouth of the receiving bore 267 is reduced. Due to the reduction in diameter of the passage opening at the bottom of the receiving bore 267, there is an annular surface enclosing the passage opening, on which the blocking spring 239 is supported with its end facing the interior of the receiving bore 267. The diameter of the passage bore at the bottom of the receiving bore 267 is dimensioned such that the passage bore of the bolt shaft 248 of the locking bolt 265 can be passed.

The switching state of the switching device 236 is defined by that position, which assumes the bolt shank 248 of the locking bolt 265 in the axial direction of the receiving bore 267 on the locking slide 23.

In the Figures 12a to 14b is the bolt shaft 248 along the axis of the receiving bore 267 on the locking slide 23 in a position in which the blocking element serving as a spherical end 260 of the locking bolt 265 protrudes relative to the locking slide 23. The bolt shank 248 is thus in the blocking switching position. The provided on the bolt shank 248 spherical end 260 of the locking bolt 265 accordingly assumes its blocking position, in which it under the action of the biased locking spring 239 in a first detent opening 268 is engaged on the lock case 2 ( FIG. 12b ). Also, the first detent opening 268 on the lock case 2 is part of the blocking device 235.

If the spherical end 260 of the locking bolt 265 is engaged in the first latching opening 268 on the lock case 2, then the blocking device 235 is in the blocking state. Due to the blocking state of the blocking device 235, the locking slide 23 arranged in an unlocking position is prevented from automatically moving into the locking position and consequently the locking device 22 is prevented from automatically being transferred from an unlocking state into a blocking state.

The latch 3 is located in the Figures 12a, 12b in unblocking state of the locking device 22 and blocking state of the blocking device 235 in the unlocked state, ie it is withdrawn into the lock case 2. This corresponds to the in the Figures 12a, 12b illustrated functional state of the lock 200 according to the functional state of the lock 1 according to FIG. 1a and the functional state of the lock 100 according to Figure 7a ,

If the lock 200 based on the conditions according to the Figures 12a, 12b be locked, the latch actuator 4 is to be operated by pivoting the pusher 5 in the locking direction 53. Due to the associated with the pivotal movement of the pusher 5 displacement of the latch drive slide 9, the latch 3 from the lock case 2 in the locked state according to FIG. 13 locked out. Due to the latching of the spherical end 260 of the locking bolt 265 with the first latching opening 268 on the lock case 2, the locking slide 23 of the locking device 22 follows the latch 3 moving in the direction of exclusion Not. The locking device 22 accordingly retains its unlocking state.

A manipulative transfer of the locking device 22 in the blocking state is possible by key operation. By turning a key inserted into the lock cylinder, not shown, and due to a resulting from the rotational movement of the key pivotal movement of the driver 52 in the locking direction 55 of the locking slide 23 of the locking device 22 from its position FIG. 13 in the position according to Figures 14a, 14b emotional. Due to the key operation of the locking slide 23, the spherical end 260 of the locking bolt 265 is deflected against the action of the detent spring 239 from its blocking position on the first detent opening 268 on the lock case 2 and the locking slide 23 can move to the latch drive slide 9 out. At the end of this movement, the locking slide 23 engages with the locking lug 24 in the open-edged recess 13 on the latch drive slide 9. This is the locking slide 23 in its blocking position, the locking device 22 is transferred to the blocking state. The spherical end 260 of the locking bolt 265 is engaged in a second detent opening 269 on the lock case 2. The latch drive 4 is locked against transfer of the bolt 3 in an unlocked state.

If the locked lock 200 to be unlocked, the gate valve 23 is in the manner described above to the lock 1 and the lock 100 by key operation from the locking position according to the Figures 14a, 14b back to the unlocking position according to FIG. 13 to move.

In order to enable automatic transfer of the locking device 22 in an unlocking state into a blocking state, the blocking device 235 is out of the blocking state according to FIG the Figures 12a to 14b in the release state according to FIGS. 17a to 19 to switch. The measures necessary for this purpose are laid down in the FIGS. 16a, 16b illustrated. FIG. 16a shows the lock case 2 on the one hand in the outside view and also in a partial view of the back of the bolt 3 and the locking slide 23. In FIG. 16b is the detail XVIb of FIG. 16a shown on a larger scale.

The FIGS. 16a, 16b show the lock 200 immediately after the actuation of the switching device 236 and the associated transfer of the blocking device 235 from the blocking state to the release state. Previously, the lock 200 was in the functional state according to Figures 12a, 12b ,

For switching the blocking device 235 is an actuating tool 270, by means of which the latched with the first detent opening 268 on the lock case 2 locking pin 265 is acted upon from outside the lock case 2 at the spherical end 260. The locking pin 265 is pushed back in the axial direction of the receiving bore 267 of the locking slide 23 against the action of the blocking spring 239 until the bolt shaft 268 of the locking bolt 265 on the circumferential groove 266 with a retaining clip 271 (FIG. FIGS. 15 . 16b ) is locked and thus permanently fixed in its release switching position.

The retaining clip 271 is inserted at the back of the locking slide 23 remote from the mouth of the receiving bore 267 perpendicular to the axis of the receiving bore 267 in the locking slide 23. Due to a corresponding geometry of the wall of the circumferential groove 266 which engages in the circumferential groove 266 of the bolt shank 248 retaining clip 271 blocks the locking pin 265 against a return movement under the action of the biased locking spring 239. Thus, the Rastbolzen 265 permanently in a relation to the proportions according to Figures 12a to 14b retracted position held in the receiving bore 267 of the locking slide 23 and a locking of the locking bolt 265 with the first detent opening 268 and the second detent opening 269 of the lock case 2 is prevented. The gate valve 23 can thus move freely in the transverse direction of the lock plate due to the loading by the locking spring 29.

The different positions of the locking slide 23 and thus the different states of the locking device 22 in the release state switched blocking device 235 are in the FIGS. 17a to 19 shown. According to Figure 17a the locking device 22 is in the unlocking state. In FIG. 18 the locking device 22 was automatically transferred from the unlocking state to the blocking state. FIG. 19 shows the lock 200 after the locking device 22 has been converted by key operation from the locking state to an unlocking state. The operations on the lock 200 result in an analogous manner from the above functional description of the lock 1 and the lock 100th

The functional states of the lock 200 according to the FIGS. 17a . 18, 19 correspond, for example, in the FIGS. 4a . 5a . 6a illustrated functional states of the lock 1.

Unlike the blocking device 35 of the lock 1 and the blocking device 135 of the lock 100, the blocking device 235 can be switched from one of its functional states to the other functional state only when the lock 200 has been removed. As a result, switching over of the blocking device 235 by unauthorized persons is prevented. All blocking devices 35, 135, 235 can be both from the blocking state in the release state and from the Switch enable state to the blocking state. At the lock 200 is to switch the blocking device 235 from the release state in the blocking state of the locking pin 265 from the position according to the FIGS. 17a to 19 in the position according to Figures 12a to 14b reset. This can be done with appropriate geometry of the wall of the circumferential groove 266 on the bolt shank 248 characterized in that the spherical end 260 opposite end of the locking bolt 265 is pressurized by an opening to this bolt end opening of the lock box 2 through with the actuating tool 270.

Claims (15)

Lock for a door, a window or the like, ● with a locking element (3), With an actuatable unlocking drive (4), by the actuation of which the locking element (3) can be transferred from a locking state into an unlocking state, and ● with a switchable locking device (22) for the unlocking drive (4), which can be converted from a blocking state into an unlocking state and automatically from an unlocking state into a blocking state, wherein the locking device (22) located in a blocking state, the unlocking drive (4) blocks against transfer of the locking element (3) located in a locking state into an unlocking state,
characterized in that
for the locking device (22) by means of a switching device (36, 136, 236) switchable blocking device (35, 135, 235) is provided, which is switchable in a blocking state and in a release state and in the blocking state in an unlocking state located blocking device (22) against an automatic, but not blocked against a manipulative transfer to a blocking state and the release state allows an automatic transfer of the locking device located in an unlocking state (22) in a blocking state. Lock according to claim 1, characterized ● that the locking device (22) has a locking element (23) which moves into a blocking position and in an unlocked position with the locking device (22) in a locking state when the locking element (23) is disposed in a locked position and wherein the locking device (22) is in an unlocking state when the locking element (23) is disposed in an unlocked position is That the blocking element (23) arranged in an unlocking position is blocked by the blocking device (35, 135, 235) connected in the blocking state against an automatic, but not against a manipulative movement into a blocking position, and That the locking element (23) arranged in an unlocking position is released by the blocking device (35, 135, 235) switched into the release state for an automatic movement into a blocking position. Lock according to one of the preceding claims, characterized in that the blocking device (35, 135, 235) has a blocking element (60, 160, 260) via which the blocking element (23) arranged in an unlocking position is provided in the blocking state (FIG. 35, 135, 235) is supported against an automatic movement into a blocking position, wherein the blocking of the element (60, 160, 260) of the blocking device connected in the blocking state (35, 135, 235) effected support of the blocking element (23) manipulative can be canceled. Lock according to one of the preceding claims, characterized in that the switching device (36, 136, 236) for the blocking device (35, 135, 235) has a switching element (48, 148, 248) which is in a blocking state of the blocking device (48). 35, 135, 235) associated blocking switching position and / or in a the release state of the blocking device (35, 135, 235) associated release switching position is movable. Lock according to one of the preceding claims, characterized in that the blocking device (35, 135, 235) has a blocking element (60, 160, 260) and that the blocking element (60, 160, 260) is moved by moving the switching element (48, 148, 248) of the blocking device (36, 136, 236) for the blocking device (35, 135, 235) into the blocking switching position into a blocking position and by moving the switching element (48, 148, 248) of the switching device (36, 136, 236) for the blocking device (35, 135, 235) is movable into the release switching position in a release position. Lock according to one of the preceding claims, characterized in that the switching device (36, 136) for the blocking device (35, 135) has a preferably designed as a lever gearbox manual transmission (41, 141) which between the switching element (48, 148) of the switching device (36, 136) for the blocking device (35, 135) and the blocking element (60, 160) of the blocking device (35, 135) is provided. Lock according to one of the preceding claims, characterized in that the switching device (236) for the blocking device (235) and / or the blocking device (235) at least partially in the locking device (22), preferably in the blocking element (23) is integrated or are. Lock according to one of the preceding claims, characterized in that the support of the blocking element (23) arranged in the unlocking position via the blocking element (60, 160, 260) of the blocking device connected to the blocking state (35, 135, 235) is manipulatively canceled by the blocking element (60, 160, 260) and / or the blocking element (23) by operating an actuating device from the support of the blocking element (23 ) via the blocking element (60, 160, 260) assumed position is deflectable or are. Lock according to one of the preceding claims, characterized in that the support of the blocking element (23) via the blocking element (60, 160, 260) of the blocking device connected in the blocking state (35, 135, 235) can be manipulated by the blocking element ( 60, 160, 260) can be deflected by operating an actuating device, preferably designed as a key, from a blocking position assumed when the blocking element (23) is supported via the blocking element (60, 160, 260). Lock according to one of the preceding claims, characterized in that the blocking element (60, 160) of the blocking device (35, 135) in the blocking position on the switching element (48, 148) moved into the blocking switching position and / or on a transmission element (37 , 161) of the gearbox (41, 141) of the switching device (36, 136) for the blocking device (35, 135) is supported, wherein the blocking element (60, 160) moved to the blocking position for manipulatively canceling the support of the blocking element (23) on the blocking element (60, 160) against the action of the support on the switching element (48, 148) and / or on the transmission element (37, 161) is deflectable. Lock according to one of the preceding claims, characterized in that arranged in an unlocking blocking element (23) in the release state switched blocking device (35, 135, 235) in the sense of an automatic movement in a locking position is subjected to force. Lock according to one of the preceding claims, characterized in that the blocking element (23) is movable against the action of a restoring force from a blocking position into an unlocking position and that the blocking element (23) arranged in the unlocking position is provided with blocking device (35, 135) switched to the release state , 235) is acted upon by the restoring force in the sense of an automatic movement in a blocking position. Lock according to one of the preceding claims, characterized in that arranged in an unlocking and switched in the release state blocking device (35, 135, 235) in the sense of an automatic movement in a locking position kraftbeaufschlagte locking element (23) by means of a switched into a holding state retention device (30, 130) against an automatic movement into a blocking position can be fixed and that the retaining device (30, 130) is switched to a release state when the locking element (3) is in the locked state, wherein the release state connected to the retaining device (30, 130) permits an automatic movement of the blocking element (23) from an unlocking position into a blocking position. Lock according to one of the preceding claims, characterized in that the retaining device (30, 130) for the locking element (23) arranged in an unlocking position by the transferred from the locking state in the unlocking locking element (3) from the holding state in the release state is switchable, wherein the blocking element (23) in the release state of the retaining device (30, 130) is movable into a blocking position as soon as the locking element (3) is again transferred to the locking state. Lock according to one of the preceding claims, characterized in that the blocking element (23) is movable from a blocking position into an unlocking position by operating an actuating device, preferably designed as a key.

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