CN107217924B

CN107217924B - Lock for treasure container

Info

Publication number: CN107217924B
Application number: CN201710173427.5A
Authority: CN
Inventors: J.瑙曼; K.德维佐格卢
Original assignee: Carl Wittkopp GmbH
Current assignee: Carl Wittkopp GmbH
Priority date: 2016-03-22
Filing date: 2017-03-22
Publication date: 2021-02-12
Anticipated expiration: 2037-03-22
Also published as: DE102016105351A1; EP3222801A1; EP3222801B1; CN107217924A

Abstract

The invention relates to a lock (1) for a precious container, comprising a housing (2), a bolt (3), a locking element (5) and a spring element (6), wherein the bolt (3) is arranged in the housing (2) so as to be movable between a locking position, in which it is retracted out of the housing (2), and an open position, in which it is retracted into the housing (2), wherein the bolt (3) can be locked in the locking position by means of the locking element (5), and wherein the spring element (6) acts on the bolt (3) with a force that presses the bolt (3) in the direction of the locking position. The lock (1) according to the invention can thus also be used in a scissor latch mechanism (8) with a simple design, i.e. the latch (3) has two inclined surfaces (7) at its ends projecting out of the housing (2), which extend at an angle α to the direction of movement of the latch (3).

Description

Lock for treasure container

Technical Field

The invention relates to a lock for a door of a precious container (Wertbeh ä ltnis), in particular for an automatic teller machine or a safe, having a housing, a bolt (Riegel), a locking element and a spring element, wherein the bolt is arranged in the housing so as to be movable between a locking position, in which it is retracted out of the housing, and an open position, in which it is retracted into the housing, and can be locked in the locking position by means of the locking element, and wherein the spring element acts on the bolt with a force, which presses the bolt in the direction of the locking position.

Background

For the lock discussed here, which is also referred to as a safety lock, the latch is not used directly for locking the door of the valuable bin to be protected, but for locking the latch mechanism (rieglerwerk). The latching mechanism is fastened here at the inside of the door of the respective precious container (for example an automatic teller machine, a safe or a safe deposit box) in order to protect the door against unauthorized opening in the closed and locked state. The mechanical latch mechanism interacts with a lock, which is usually screwed to the base plate of the latch mechanism. The locks used for this purpose can in principle be both mechanical locks and electronic locks, wherein, however, the latching mechanisms which are intended to meet increased safety requirements are usually combined with electronic locks which are usually locked and unlocked via an alphanumeric input unit.

In the locked state of the latch mechanism, one or both latches of the latch mechanism are in the first closed position of the extended-out position, wherein the latch or latches are thereby prevented from moving back into the second open position of the extended-in position, i.e. the latches bear laterally against the extended latches of the lock. In order to intentionally open the bolt mechanism, the lock must first be unlocked and the bolt of the lock must be pulled back out of its locking position, so that the bolt or bolts of the bolt mechanism no longer catch the locked bolt. The latch of the latch mechanism can then be moved from the first, driven-out position into the second, driven-in position by manipulating a handle arranged at the outside of the door of the tote, so that the door is then unlocked and can be opened.

If the door is to be locked again, the latch mechanism must first be brought back from its second position into its first position by a corresponding actuation of the handle after the door has been closed. The lock must then additionally be locked, whereby the bolt of the lock is again brought into its locked position, in which the bolt of the lock interacts with the bolt or bolts of the bolt mechanism. Since the lock must additionally be locked in order to lock the bolt mechanism, the effort for locking the door is increased.

Two different types of locks are known in principle, namely "full bolt-lock" and "swing bolt-lock" (which are also referred to as "swing bolt-lock" or "Roto bolt-lock"). A full bolt lock has a linearly movable rectangular bolt, which is usually moved by means of an electric motor from a closed position, in which it is moved out of the housing, into an open position, in which it is pulled into the housing. If the lock has an electric motor, the bolt of the lock is usually also brought from the open second position into the extended locked position by means of the electric motor.

The pivoting bolt lock, instead of the linearly displaceable bolt, has a rotatably mounted pivoting bolt (schwenkregel), which is pivoted back into the housing when the lock is unlocked by the bolt of the actuating mechanism, which bolt is displaced in the direction of the open position. Thus, for swinging the latch-lock, the use of a motor to pull the latch into the housing may be dispensed with. The pivoting latch is loaded via a spring arranged in the housing of the lock with a force which automatically pivots the pivoting latch back into its latching position when the pivoting latch is released, that is to say when the latch mechanism is brought into its first, retracted latching position beforehand. The pivoting bolt lock is thus not only automatically closed but also automatically opened, wherein the user merely has to lock or unlock the lock by entering the corresponding code, so that the actuation of the bolt mechanism is correspondingly simplified.

However, the disadvantage of the pivoting latch bolt is that it can only be used in latch mechanisms with a latch bolt, since it can only block the direction of movement of the pivoting latch bolt on one side due to the shape and arrangement of the pivoting latch bolt. Conversely, if a scissor latch mechanism (scherrenregelwerk) with two latches which are moved toward one another in order to open the latch mechanism is to be used as the latch mechanism, a lock with a swinging latch cannot be used. In a scissor latch mechanism, a full latch lock is therefore always used, which is connected to the latch mechanism in such a way that the latch bolt of the lock is arranged between the two latch bolts or scissors of the scissor latch mechanism in the closed state, whereby the latch bolts of the latch mechanism are prevented from moving toward one another by the latch bolts of the lock.

Disclosure of Invention

The object of the present invention is therefore to provide a lock for a precious container which can be used in different types of latch mechanisms, in particular also in scissor latch mechanisms, with a construction which is as simple as possible.

This object is achieved for the lock according to the invention described at the outset in that the latch has two inclined surfaces at its ends projecting from the housing, which extend at an angle α to the direction of movement of the latch. In contrast to the full bolt, the end of the bolt projecting out of the housing in the lock according to the invention is therefore not configured as a rectangle, but rather has an approximately trapezoidal base surface in accordance with the design of the ramp. The side faces of the latch are thus not arranged perpendicular to the direction of movement of the latch shears of the latch mechanism, but at an angle of less than 90 °, so that by the opening movement of the latch mechanism a force is exerted on the latch of the lock, by means of which force the latch is moved into its open position with the lock unlocked.

Since in the lock according to the invention the shape of the end of the latch projecting out of the housing is not quarter-circular, unlike the shape of the swing latch, and the latch is also supported in the housing non-rotatably, the lock according to the invention can also be used in a scissor latch mechanism (in which two latches or scissors act on the latch of the lock from two opposite sides), so that the lock can be used very widely.

The angle α of the ramp with respect to the direction of movement of the latch bolt is preferably approximately 45 °, wherein, however, minor deviations from this are also possible in principle. However, the angle α of the ramps with respect to the direction of movement should generally be between 35 ° and 55 °, in particular between 40 ° and 50 °, wherein the angle α of the two ramps should be equal in order to avoid skewing of the latch when inserted into the housing (Verkanten).

According to an advantageous embodiment of the lock according to the invention, the latch is formed in at least two parts, wherein the latch has a latch head (riegletkopf) and a latch lever (riegleschaft), which are releasably connected to one another. The production of the latch can thereby be simplified and the possibility exists of combining the latch rod with different latch heads (which differ, for example, by a slightly different angle of the ramp). Likewise, it is of course also possible to connect the latch head with different latch levers, which can be adapted to different housing sizes. The connection of the bolt head and the bolt shaft is preferably realized by means of a bolt, whereby not only a reliable connection of the bolt head and the bolt shaft but also a simple replacement of one of the two components is realized. Thus, for example, there is also the possibility of simply replacing a damaged bolt head without having to replace the entire bolt or even the entire lock. Finally, the two-piece construction of the latch provides the possibility of applying different materials to the latch head and the latch rod, so that for latch heads exposed to higher mechanical stresses harder materials, such as for example fine cast steel, can be used than for latch rods.

In order to ensure a secure fastening of the bolt head to the bolt rod and in particular to prevent the bolt head from twisting or tilting relative to the bolt rod, the bolt head has, according to a preferred embodiment, a pocket-like recess into which the end of the bolt rod projecting out of the housing is inserted. This end of the bolt rod is thus surrounded like a bolt head. The free end of the latch lever is preferably matched in its shape to the shape of the latch head, so that the free end of the latch lever preferably also has a trapezoidal base surface.

As already mentioned above, the mechanical connection of the bolt head and the bolt shank is preferably realized by means of a bolt, for which purpose a bore for the bolt is formed in the bolt head, which bore extends on both sides of the recess, i.e. the bore does not end in or at the recess, but continues in the bolt head after the recess. An elongated opening is also formed in the end of the bolt pin rod inserted into the recess, wherein the bore and the elongated opening are arranged relative to each other such that the bolt screwed into the bore penetrates the opening in the bolt pin rod. If an elongated opening (the longitudinal extent of which is greater than the diameter of the bolt) is formed in the end of the bolt rod which is inserted into the recess, there is the possibility of changing the position of the bolt head relative to the bolt rod in the longitudinal direction of the opening and thus also in the direction of movement of the bolt. In a simple manner, this provides the possibility of adjusting the latch travel (Riegelhub) of the latch bolt, whereby the possible free travel (Freilauf) of the latch bolt mechanism, which could otherwise be present due to the inclined surface at the end of the latch bolt, can be compensated.

The adjustability of the position of the bolt head relative to the bolt rod and thus the adjustability of the bolt travel described above furthermore offers the possibility of adapting the lock to a single bolt mechanism in a simple manner, and thus in particular also the possibility of replacing the locks used in scissor bolt mechanisms with full bolts by the lock according to the invention.

The adjustment of the bolt travel can be achieved according to a particularly preferred embodiment of the invention in that a fastening element is arranged in the bolt head in the region of the recess, which fastening element has at least one, preferably two wedge-shaped clamping surfaces and a bore, wherein the fastening element is arranged such that the screw engages in the bore. In this case, at least one corresponding mating clamping surface is formed in the elongated opening in the latch lever, so that the clamping surface of the fastening element and the mating clamping surface cooperate to fasten the latch head relative to the latch lever when the bolt is tightened. Conversely, the loosening of the screw results in the clamping surface and the counter-clamping surface being at a smaller distance from one another and therefore no longer interacting such that the bolt head can be displaced relative to the bolt shaft in the direction of movement of the bolt.

The fastening element (which, as previously explained, preferably has two clamping surfaces lying opposite one another) can be made of both metal and elastic material. The clamping surface preferably has a plurality of ribs, for which corresponding ribs are configured at the mating clamping surface of the opening in the latch lever. The bolt head is thereby secured particularly reliably against displacement or sliding in the direction of movement of the bolt, even when a force acts on the inclined surface of the bolt head.

The adaptation of the lock to the respective latch mechanism and in particular the compensation of the lost motion of the scissors latch mechanism can also be achieved in that the position of the lock relative to the latch or the scissors of the latch mechanism is adjustable. In this respect, a preferred embodiment of the invention provides that the fastening opening formed in the housing of the lock (through which the lock is fastened to the base plate of the latch mechanism by means of a corresponding bolt) is formed as an elongated hole. Even if a hole corresponding to a fastening opening in the housing of the lock is provided in the base plate of the latch mechanism, a precise positioning of the lock and in particular of the latch relative to the latch or the scissors of the latch mechanism is thus possible. This type of adaptation of the lock to the corresponding bolt mechanism is particularly used if the bolt is designed in one piece, i.e. not consisting of a bolt head and a bolt rod which are releasably connected to one another.

According to a preferred embodiment of this adjustment possibility for the position of the lock, the edge region of the housing surrounding the fastening opening has a plurality of ribs, as a result of which the fastening of the lock is improved and the risk of the lock slipping when a force acts on the inclined surface of the bolt head is reduced. Additionally, a ribbed locking disk (sichernscheibe) or a washer (unterleggscheibe) can also be used, which further increases the reliability of the fastening of the lock and at the same time also serves as a screw fastening (Schraubensicherung).

Drawings

There are now a number of possibilities for designing and improving in particular a lock according to the invention. Reference is made to the following description of the preferred embodiments of the invention, taken in conjunction with the accompanying drawings. Wherein:

figure 1 shows a simplified schematic view of a full latch lock, a swing latch lock and a lock according to the invention,

fig. 2 shows an embodiment of the lock according to the invention from above, with the cover removed,

figure 3 shows a perspective view of the latch pin of the lock from the lower side,

figure 4 shows the latch according to figure 3 in longitudinal section,

figure 5 shows an enlarged illustration of the latch head from below and in cross-section,

figure 6 shows the latch lever of the latch according to figure 3 from above,

figure 7 shows the latch bar according to figure 6 in longitudinal section,

figure 8 shows an enlarged illustration of the fixing element from below and from the side,

figure 9 shows a top view of the lock fastened at the latch mechanism in the basic position,

figure 10 shows an enlarged section of the lock and latch mechanism according to figure 9,

figure 11 shows a section of the lock and latch mechanism according to figure 10 after the lost motion compensation has been effected,

FIG. 12 shows a section of the lock according to FIG. 10 and the latch mechanism in a semi-open state of the latch mechanism, an

Fig. 13 shows a representation of an alternative design of the lock from the bottom.

Detailed Description

Fig. 1 shows three simplified schematic views of a lock 1, wherein only the housing 2 of the lock 1 and the bolt 3 in the retracted locking position are shown in each case. For the lock 1 'shown in fig. 1a, the bolt 3' is designed as a full bolt, the end of which projecting from the housing 2 has a rectangular base surface. Fig. 1b shows a pivoting latch bolt 1 ″ in which the latch bolt 3 ″ is designed as a pivoting latch bolt which is rotatably mounted in the housing 2 and whose end projecting from the housing 2 is designed as a quarter circle. Fig. 1c finally shows a lock 1 according to the invention with a specially designed bolt 3, which is explained more precisely below.

In addition to the lock 1, two or one bolt 4 of the bolt mechanism are shown in each of the three figures according to fig. 1. As can be seen from fig. 1a, the full latch-lock 1 'shown there is suitable for preventing the two latches 4 of the latch mechanism from moving towards one another when the latch 3' is in its latched position out of the housing 2. In order to intentionally open the latch mechanism, the lock 1' must first be unlocked, the latch 3' of the lock 1' being actively moved out of its extended locking position into the housing 2, for example by means of an electric motor.

In contrast, the pivoting latch bolt 1 ″ shown in fig. 1b is suitable only for blocking a single latch bolt 4 of the latch mechanism, so that such a pivoting latch bolt 1 ″ cannot be used in a scissor latch mechanism. For this purpose, pivoting the latch bolt 1 ″ has the advantage that the latch bolt 3 ″ of the latch 1 ″ can be pivoted inward into the housing 2 of the latch 1 ″ by the movement of the latch bolt 4 of the latch mechanism with the latch 1 ″ unlocked, so that the latch bolt 3 ″ itself does not have to be actively brought from the extended or pivoted-out latching position into the open position pulled into or pivoted into the housing 2.

The lock 1 according to the invention shown in fig. 1c combines the two advantages of the two locks 1', 1 ″ described previously. As can be seen from fig. 1c, it can also be used in a scissor latch mechanism with two latches 4, as in a full latch lock. As in the case of a pivoting latch lock, however, it is not necessary to additionally actively move the bolt 3 of the lock 1 from the extended closed position into the retracted open position when the lock 1 is unlocked, since the force necessary for this is also exerted by the bolt 4 of the bolt mechanism when the bolt mechanism is open.

Fig. 2 shows a preferred embodiment of a lock 1 according to the invention, in which at least a blocking element 5 and a spring element 6 are arranged in the housing 2 in addition to the above-mentioned bolt 3. The locking element 5 serves to lock the latch bolt 3 in the shown locked position, so that the latch bolt 3 cannot be pushed into the housing 2 even if a corresponding force acts on the latch bolt 3 from the outside. The spring element 6 acts, on the other hand, to load the latch bolt 3 with a force which presses the latch bolt 3 in the direction of the closed position, so that the latch bolt 3 automatically moves from the open position into its extended closed position, as long as the path of the latch bolt 3 is not blocked by the latch bolt 4 of the latch bolt mechanism.

As can be seen from fig. 2 and also from a comparison of fig. 1c in particular with fig. 1a, the latch bolt 3 has two bevels 7 at its end projecting from the housing 2, which are each arranged at an angle α of 45 ° relative to the direction of movement of the latch bolt 3. This results in the latch bolt 3 being pushed out of its latching position into the housing 2 by the force of the latch bolt 4 of the latch bolt mechanism acting on the inclined surface 7 of the latch bolt 3 of the lock 1 if the latching element 5 is brought into a position in which the latching element 5 enables a corresponding movement of the latch bolt 3 into the housing 2 by unlocking the lock 1 beforehand when the latch bolt mechanism is opened. Here, the bolt 3 does not have to be pulled completely into the housing 2, but only so far that the bolt 3 no longer blocks the desired movement of the bolt 4 of the bolt mechanism. The lock 1 shown in fig. 2 is normally locked with a (not shown here) housing cover when the lock is fastened at the latching mechanism 8. For this purpose, the lock 1 according to fig. 1 is screwed downwards in the housing cover onto the base plate 9 of the latching mechanism.

Fig. 3 and 4 show the bolt 3 of the lock according to fig. 2 in a perspective view (fig. 3) and in longitudinal section (4). Fig. 3 shows the latch 3 from the bottom (opposite to the illustration according to fig. 2), while the top of the latch 3, which is visible in the plan view of the latch 1 according to fig. 2, faces the base plate 9 in the mounted state on the base plate 9 of the latch mechanism 8. The latch 3 is composed of a latch head 10 and a latch rod 11, which are connected to each other via a bolt 12. As can be seen from fig. 3, the ramp 7 is formed at the bolt head 10, which is shown separately in fig. 5. In contrast, fig. 6 and 7 show the bolt bar 11 without the bolt head 10.

As can be seen in particular from fig. 4 and from fig. 5b, the latch head 10 has a pocket-like recess 13 into which the end 14 of the latch rod 11 projecting from the housing 2 is inserted. Furthermore, a bore 15 for the bolt 12 is formed in the bolt head 10, which bore extends on both sides of the recess 13. An elongated opening 16 is formed in the end 14 of the bolt pin rod 11 inserted into the recess 13, through which opening the bolt 12 extends in the assembled state of the bolt pin head 10 and the bolt pin rod 11.

Since the length of the opening 16 is significantly greater than the diameter of the bore 15 or of the bolt 12, there is the possibility of moving the bolt head 10 relative to the bolt rod 11 in the longitudinal direction of the opening 16 and thus also in the direction of movement of the bolt 3, whereby the bolt travel of the bolt 3 can be adjusted. In this connection, a fastening element 17, which is shown separately in fig. 8, is arranged in the latch head 10 in the region of the recess 13. The fastening element 17 has two wedge-shaped clamping surfaces 18 and a bore 19 into which the bolt 12 is screwed, the bore 19 having a thread corresponding to the bolt 12.

As can be seen from fig. 8b, the fixing element 17 has a trapezoidal contour which matches the contour of the elongated opening 16 in the end 14 of the latch lever 11. I.e. the elongated opening 16 has two cooperating clamping surfaces 20, so that the latch head 10 can be fixed in the longitudinal direction of the opening 16 via the clamping surfaces 18 and the cooperating clamping surfaces 20. With the bolt 12 tightened, the clamping surface 18 cooperates with the opposite, cooperating clamping surface 20 in such a way that the bolt head 10 is fixed relative to the bolt rod 11. In order to prevent the latch head 10 from moving in the longitudinal direction of the opening 16 (when a corresponding force acts on the latch head 10, for example due to the latch 4 of the latch mechanism 8 being pressed against the inclined surface 7 of the latch head 10), a plurality of

ribs

21, 22 are formed in each case both at the clamping surface 18 and at the counter-clamping surface 20. With the bolt 12 tightened, the ribs 21 of the clamping surface 18 of the fixing element 17 then engage into the ribs 22 of the mating clamping surface 20. If the bolt 12 is loosened, this results in the rib 21 of the clamping surface 18 no longer engaging the rib 22 of the mating clamping surface 20, so that the bolt head 10 can be displaced with the bolt 12 and the fixing element 17 penetrated by the bolt 12 in the elongate opening 16 in the bolt shank 11. In this regard, the fixing element 17 has a smaller extension in the longitudinal direction of the opening 16 than the longitudinal extension of the opening 16.

Fig. 9 shows a plan view of the lock 1 according to fig. 2, wherein the lock 1 is screwed onto the base plate 9 of the latch mechanism 8. In contrast to fig. 2, the lock 1 is therefore shown from the bottom in fig. 9. In order to be able to fasten the lock 1 to the base plate 9 of the bolt mechanism 8, a total of three fastening openings 23 are formed in the housing 2 of the lock 1, through which fastening openings bolts 24 are screwed into the base plate 9. In the illustration of the lock 1 shown in fig. 9, the bolt 3 is in its blocking position retracted out of the housing 2, wherein the bolt head 10 has not yet been adjusted precisely into the position of the bolt 4 of the bolt mechanism 8.

As can be seen from the enlarged illustration according to fig. 10, there is also a small distance between the inclined surface 7 of the latch head 10 and the corresponding surface of the latch bolt 4 of the latch mechanism 8. This lost motion can be compensated for by adjusting the bolt travel, so that the bolt 4 of the bolt mechanism 8 in the closed state rests directly on the inclined surface 7 of the bolt head 10, as shown in fig. 11. If the lock 11 is now unlocked (for example by inputting a certain code by means of a corresponding input device), the latch mechanism 8 can be unlocked, so that the two scissors or latches 4 of the scissors latch mechanism move towards one another, as can be seen from fig. 12. By moving the bolt 4 perpendicularly to the direction of movement of the bolt 3, the bolt 3 of the lock 1 is pushed into the housing 2 so far that the bolt 4 of the bolt mechanism 8 can be guided past the front side of the bolt 3, i.e. the bolt 3 no longer prevents the opening of the bolt mechanism 8.

Fig. 13 shows a slightly different embodiment of the lock 1, wherein the lock 1 is shown from the bottom side as in fig. 9. In this case, the precise positioning of the bolt head 10 relative to the stop face of the bolt 4 of the bolt mechanism 8 can be achieved in that the position of the housing 2 can be changed. In this connection, the fastening opening 23 in the housing 2 is configured as an elongated hole, so that even with a preset hole fixation in the base plate 9 of the latch mechanism 8, a certain adjustment of the housing 2 and thus also of the latch 3 in the direction of movement of the latch 3 is possible. The edge region 25 of the housing 2 surrounding the fastening opening 23 has a plurality of ribs 26, whereby the risk of sliding of the housing 2 is reduced when a force acts on the ramp 7 of the latch 3. According to a preferred embodiment, spacers 27 are also used, which likewise have corresponding ribs on the side facing the housing 2.

In the illustration of the lock 1 according to fig. 2, further components arranged in the housing 2 can be seen, which are secondary to the invention and therefore do not have to be realized in a mandatory manner. For actuating the rotatably mounted blocking element 5, a motor 28 is arranged, for example, in the housing 2, which is connected to a control unit 30 via a circuit board 29. In this case, a relatively small rotation of the blocking element 5 is sufficient to bring the blocking element 5 from the blocking position shown into the position in which the latch bolt 3 is released. Furthermore, a lever element 31 is provided between the latch bolt 3 and the blocking element 5, which lever element can be pivoted about a pin arranged in the housing 2.

Claims

1. A lock (1) for a precious metal tank for locking a latch mechanism (8) with a housing (2), a latch (3), a blocking element (5) and a resilient element (6),

wherein the latch bolt (3) is arranged in the housing (2) so as to be movable between a locking position, in which the latch bolt mechanism (8) is locked, in which the latch bolt (3) can be locked by means of the locking element (5) and is retracted from the housing (2) into the housing (2), and an open position, in which the latch bolt (3) is retracted into the housing (2)

Wherein the spring element (6) loads the latch bolt (3) with a force which presses the latch bolt (3) in the direction of the closed position,

it is characterized in that the preparation method is characterized in that,

the latch bolt (3) has two inclined surfaces (7) at its end projecting from the housing (2), which are configured to interact with the latch bolt (4) of a latch bolt mechanism (8) and which each extend at an angle α to the direction of movement of the latch bolt (3), and the end of the latch bolt (3) projecting from the housing (2) in the latched state has a trapezoidal base surface.

2. Lock (1) according to claim 1, characterized in that the angle a of the bevel (7) is between 35 ° and 55 °.

3. Lock (1) according to claim 2, characterized in that the angle a of the bevel (7) is between 40 ° and 50 °.

4. Lock (1) according to claim 1, characterized in that the bolt (3) has a bolt head (10) and a bolt rod (11), which are releasably connected to each other.

5. Lock (1) according to claim 4, characterized in that the bolt head (10) and the bolt rod (11) are screwed to each other by means of a bolt (12).

6. Lock (1) according to claim 4, characterized in that the latch head (10) has a pocket-like recess (13) into which the end (14) of the latch rod (11) projecting from the housing (2) is inserted.

7. Lock (1) according to claim 6, characterized in that the bolt head (10) has a hole (15) for a bolt (12) and in that an elongated opening (16) is configured in the end (14) of the bolt rod (11) inserted into the recess (13), wherein the hole (15) extends on both sides of the recess (13) and the hole (15) and the elongated opening (16) are arranged to each other such that a bolt (12) screwed into the hole (15) penetrates the opening (16) in the bolt rod (11).

8. Lock (1) according to claim 7, characterized in that a fixing element (17) is arranged in the bolt head (10) in the region of the recess (13), having at least one wedge-shaped clamping surface (18) and a bore (19) into which the screw (12) engages, and the elongated opening (16) in the latch bar (11) has at least one corresponding mating clamping surface (20), such that the clamping surface (18) and the mating clamping surface (20) co-act upon tightening of the bolt (12) in such a way that the bolt head (10) is fixed relative to the bolt shank (11), while the clamping surface (18) and the mating clamping surface (20) do not co-act when the bolt (12) is loosened, so that the bolt head (10) can be moved relative to the bolt rod (11) in the direction of movement of the bolt (3).

9. Lock (1) according to claim 8, characterized in that the at least one clamping surface (18) has a plurality of ribs (21) and that a plurality of ribs (22) are also configured at the at least one mating clamping surface (20).

10. The lock (1) according to any one of claims 1 to 9, characterized in that the housing (2) has at least two fastening openings (23), wherein the fastening openings (23) are configured as long holes.

11. Lock (1) according to claim 10, characterized in that the edge region (25) of the housing (2) surrounding the fastening opening (23) has a plurality of ribs (26).

12. Lock (1) according to any of claims 1 to 9, characterized in that the blocking element (5) is rotatably supported and driven by an electric motor (28).

13. The lock (1) according to one of claims 1 to 9, characterized in that a lever element (31) is mounted in the housing (2) so as to be pivotable about an axis, wherein the bolt (3) is held in the locked position via the lever element (31) when the lever element (31) bears against the locking element (5).