Cam lock

Abstract

The invention relates to a cam lock (11), in particular a safety cam lock, having a lock housing (1) and a locking actuator (4) which is rotatably mounted in the lock housing and which is connected to a locking element (5), in particular to a bolt, the invention relates to a cam lock (1) for locking and unlocking a door, comprising a locking actuator (4) which can be rotated back and forth together with a locking element (5) about an axis of rotation (D) between a locking position and an unlocking position for locking and unlocking the door, having an anti-reversal lock (6) for fixing the locking actuator (4) in position at least in its locking position, the anti-reversal lock (6) has a first fixing element (6.1) and a second fixing element (6.2), and wherein the two fixing elements (6.1, 6.2) interact with each other to prevent accidental rotation of the locking actuator (4) wherein the first fixing element (6.1) is arranged to rotate together with the locking actuator (4) and the second fixing element (6.2) is arranged to be fixed in a rotationally fixed manner with the lock housing (1), wherein the second fastening element (6.2) is designed as a cam track guide.

Description

Technical Field

[0001] This invention relates to a turnbuckle lock, and more particularly to a security turnbuckle lock having a lock housing and a locking actuator rotatably mounted in the lock housing, the locking actuator being connected to a locking element (particularly the latch), and the locking actuator being able to rotate back and forth with the locking element about a rotation axis between a locked position and an unlocked position for locking and unlocking a door, the turnbuckle lock having an anti-reverse lock for fixing the locking actuator at least in its locked position, wherein the anti-reverse lock has a first fixing element and a second fixing element, and wherein the two fixing elements interact with each other to prevent accidental rotation of the locking actuator. Background Technology

[0002] Rotary latches are used in various technical fields to lock doors so that they can no longer be opened. In some applications, special care must be taken to ensure that the rotary latch is not accidentally opened. For example, this can happen if the door is subjected to bumps or vibrations, which may cause the locking actuator of the rotary latch to move unexpectedly over a prolonged period of time, and in the worst case, even lead to accidental unlocking.

[0003] Anti-reverse locks are characterized by preventing accidental movement, ensuring that the rotary latch cannot be moved even after a prolonged period. There are also anti-reverse brakes, such as those with reduction gears or self-locking gears. However, unlike anti-reverse locks, these often do not provide sufficient protection against accidental locking or unlocking in most cases, especially during prolonged use and periods of strong vibration.

[0004] To ensure reliable locking in this regard, a so-called safety rotary latch lock is used, which has a safety device, at least in the locked position, so that the rotary latch lock will not be accidentally unlocked even during prolonged vibration or impact. A well-known safety rotary latch lock, proven to be very reliable in practice, is described, for example, in WO 2009 / 103 414 A1. This safety rotary latch lock has an anti-reverse locking mechanism consisting of a first fixed element that can rotate back and forth with the actuation shaft and a fixed second fixed element. The first fixed element is designed as a cam track guide, which is preloaded in the axial direction and angled at 90 degrees at both ends. The second fixed element corresponds to a pin guided in the housing side of the cam track guide, which automatically moves into the end angle of the cam track guide when the locked position is reached, thereby interacting with the first fixed element, preventing the locking actuator from rotating and securing the locking actuator in place. A protrusion is provided between the two angled ends to prevent the second fixed element from moving directly from one end to the other, thus preventing movement between the locked and unlocked positions. Conversely, in order to rotate the locking actuator and move it, for example, from the locked position to the unlocked position, the cam track guide or locking actuator must first be moved in the axial direction so that the pin is moved to the upper part of the cam track guide and the locking actuator can be rotated again.

[0005] While this design reliably prevents accidental movement of the locking actuator and thus accidental unlocking, the need to insert the pin through the housing wall into the cam track guide during assembly is not always straightforward. This is because it is not possible to determine from the outside whether the cam track guide inside the lock housing is aligned to allow the pin to engage; in particular, it is not easy to determine how the position of the cam track guide must be changed to allow the pin to engage. Overall, this makes installation relatively complex. Summary of the Invention

[0006] Based on this, the present invention sets its own objective as providing a rotary lock, particularly a safe rotary lock, characterized by simpler assembly.

[0007] The task is solved in the type of rotary lock mentioned at the beginning by arranging a first fixing element to rotate together with the locking actuator and arranging a second fixing element to be fixed to the lock housing in an anti-rotation manner, the second fixing element being designed as a cam track guide.

[0008] The anti-rotation arrangement of the second retaining element on the lock housing facilitates assembly because the second retaining element no longer needs to be blindly screwed into the already assembled first retaining element. The second retaining element can be connected directly or indirectly to the lock housing, as will be explained in more detail below.

[0009] Designing the second fixing element as a cam track guide allows the first fixing element to be guided within the second fixing element. The cam track guide can be designed such that it allows at least partial relative movement of the first fixing element within the cam track guide and prevents at least partial rotational movement. By preventing rotational movement, the locking actuator can be positioned in a fixed position, preventing accidental movement. The cam track guide thus allows for an anti-reverse lock. Furthermore, the cam track guide can also have a guiding function that ensures the locking actuator does not tilt during rotational movement.

[0010] Furthermore, it has proven advantageous if the first fixing element can move between a release position and a fixed position, in which the locking actuator can rotate back and forth between a locked position and an unlocked position, while in the fixed position, rotational movement is prevented. To move the locking element back and forth between the locked and unlocked positions, the first fixing element must first be moved to the release position. The first fixing element can be biased in the direction of the locked position. In this respect, the two fixing elements can interact with each other in the locked position to prevent accidental rotation of the locking actuator, and the locking actuator can rotate about the axis of rotation in the release position to actuate the locking element.

[0011] To move the first retaining element between the released and locked positions, the first retaining element can be arranged to move in the axial direction. To move the first retaining element from the locked position to the released position, the first retaining element can be moved in a linear direction along the axis of rotation into the lock housing. To move the first retaining element from the released position to the locked position, the first retaining element can then be moved in the opposite direction.

[0012] Regarding the locking actuator, having a first actuating unit and a second actuating unit has proven advantageous. The two actuating units can be arranged front-to-back in the lock housing along the axial direction. The first actuating unit can be arranged on the outside of the lock housing, and the second actuating unit can be arranged on the inside. This means that the second actuating unit can be arranged between the bottom of the lock housing and the first actuating unit. In terms of design, the two actuating units can be cylindrical and rotationally symmetrical about the axis of rotation. The first actuating unit can have a receiving space designed particularly concentrically with the axis of rotation, and the second actuating unit can be at least partially engaged into this receiving space via a contour. Therefore, the second actuating unit can be at least partially guided within the first actuating unit.

[0013] The first fixing element can be preloaded in the direction of the locked position. For this purpose, the two fixing elements can interact with each other in the locked position to prevent accidental rotation of the locking actuator, and the locking actuator can rotate about the axis of rotation in the released position. The preload can be provided by a spring, particularly a helical compression spring. The spring can be arranged between the first and second actuating units, and particularly concentrically with respect to the axis of rotation. Therefore, the spring can be used to preload the first actuating unit relative to the second actuating unit, particularly into the locked position, and correspondingly preload the first fixing element relative to the second fixing element.

[0014] The rotary connection between the first and second actuating units has also proven advantageous. Therefore, the two actuating units can rotate together about a rotation axis. For the rotary connection, the second actuating unit can have a profile, particularly a square profile, on the side facing the first actuating unit, and the first actuating unit can have a corresponding receiving section, particularly a receiving section in the form of a square hole, which can be adapted to the geometry of the profile. The two actuating units can be connected to each other via the receiving section and the profile in a rotary connection.

[0015] Furthermore, in a particularly preferred embodiment, the two actuation units can also be rotatably connected to each other via a first fixing element. For this purpose, the first fixing element can extend through the two actuation units, particularly in the lateral direction, and thus provide a form-fitting rotational connection.

[0016] From a design perspective, it has proven advantageous for the first actuating unit to have a hole (particularly a cylindrical hole) and / or the second actuating unit to have a hole (particularly an elongated hole). A first fixing element can be specified to extend through the holes of both actuating units, thereby connecting the two actuating units to each other. The holes of the two actuating units can be aligned with each other to enable connection via the first fixing element. The first fixing element can be guided in a linearly movable manner within the hole designed as an elongated hole and thus movable in the axial direction.

[0017] Therefore, relative rotational movement can be prevented by extending a first retaining element through both actuating units. The first retaining element can be designed as a pin, which may specifically have a circular cross-section. The first retaining element can protrude laterally (particularly on both sides) relative to the locking actuator or the two actuating units, and this protruding area can act as a bulge that can interact with a second retaining element to selectively prevent rotational movement of the locking actuator. The first retaining element can be guided within the second retaining element. The second retaining element can be designed such that the first retaining element can only perform certain movements. The locking actuator can be positioned and fixed via the first retaining element or via the interaction of the first and second retaining elements.

[0018] Furthermore, it has proven advantageous for the two actuating units to be arranged such that they can move relative to each other in the axial direction. Advantageously, the second actuating unit is arranged immovably in the axial direction and is in this respect firmly mounted in the axial direction in the lock housing or sleeve, which is described in more detail below, while the first actuating unit is movable relative to the second actuating unit in the axial direction, i.e., in the direction of the axis of rotation, and therefore also movable relative to the second fixing element and the lock housing.

[0019] This relative movement can be achieved by designing the hole of the second actuating unit as an elongated hole. The first fixing element can move relative to the second actuating unit together with the first actuating unit. The first fixing element can move within the elongated hole, which in this respect can serve as a guide. In the locked position, the first fixing element can rest against one end (particularly the outer end) of the elongated hole, and in the released position, the first fixing element can rest against the other end (particularly the inner end) of the elongated hole. Therefore, the end of the elongated hole can serve as a stop for limiting the axial movement of the first actuating unit or the first fixing element.

[0020] Furthermore, it has proven advantageous to design the locking actuator such that the first actuating unit must first move in the axial direction to rotate. Due to the axial movement, the two fixed elements can disengage, so the anti-reverse lock no longer prevents the movement of the locking actuator. This design allows for a push-and-turn mechanism, requiring the locking actuator to be pressed down and then rotated, specifically whether rotating the locking actuator from the locked position to the unlocked position or vice versa.

[0021] Furthermore, it has proven advantageous for the actuating unit to extend through a notch at the bottom of the lock housing and connect to the locking element in the area protruding from the lock housing. It is also advantageous if the locking element is provided on the locking actuator in a form-fit manner and secured to the locking actuator by means of bolts.

[0022] Specifically, the second actuation unit can be connected to the locking element, particularly the latch, in an anti-rotation manner. For this purpose, the second actuation unit can have a profile, particularly a square profile, on which the locking element can be arranged in an anti-rotation manner. Thus, the locking element can rotate in the same direction about a rotation axis together with the locking actuator or with both actuation units.

[0023] Furthermore, the second actuating unit may have a flange that projects radially around its circumference, the diameter of which is larger than the notch at the bottom of the lock housing. Therefore, the bottom can act as an axial stop for the second actuating unit, preventing it from passing through the bottom or the notch due to the flange. The flange then prevents axial movement of the second actuating unit or locking actuator in one direction and prevents movement of the locking element connected to the second actuating unit in another direction.

[0024] Regarding the lock housing, it has proven advantageous to have a flange that contacts the outer side of the door when the lock housing is installed on it. The flange can rest on the outer side of the door, thus acting as a stop for positioning the lock housing. To securely attach the lock housing to the door, it can also have threads, allowing a nut to be screwed onto the threads to secure the lock housing to the door. After the nut is tightened, the door is fixed between the flange and the nut, preventing any relative movement of the lock housing.

[0025] Furthermore, the lock housing may have a bottom and a recess in the bottom through which the locking actuator, particularly the second actuation unit, can extend, as explained above. The bottom may be designed to project radially inward, such that it acts as an axial stop for the sleeve or locking actuator during assembly. Overall, the lock housing may have a cylindrical geometry, and the axis of rotation may extend centrally through the lock housing.

[0026] According to an advantageous further improvement of the invention, the lock housing has two stops for limiting the rotational movement of the locking element. One stop can be associated with a locked position and the other with an unlocked position, such that the two stops ensure that the locking element can only rotate back and forth within a rotational angle range between the locked and unlocked positions. The two stops can be arranged circumferentially offset from each other by slightly more than 90 degrees, such that the rotational angle range of the locking element and the locking actuator is correspondingly limited to 90 degrees. The locking element can have a stop lug, which can be designed to project axially parallel to the axis of rotation and contact one of the stops in both the locked and unlocked positions. Due to the width of the stop lug, the two stops can be offset circumferentially by slightly more than 90 degrees to ensure 90-degree rotational movement.

[0027] Regarding the design of the second fixing element, it has proven advantageous for the second fixing element to have at least one protrusion extending in the radial direction. The protrusion can extend from the inside of the sleeve along the direction of the rotation axis or the actuation axis, such that the first fixing element can engage behind the second fixing element or the corresponding protrusion. Thus, the protrusion can extend into a receiving space of the lock housing, in which the locking actuator can be accommodated. The protrusion can be part of a guide mechanism that prevents the first fixing element from moving in a particular direction. Therefore, the protrusion can be designed as a motion limiter for the first fixing element.

[0028] From a design perspective, it has proven advantageous for the protrusion to have a strip-like geometry. Therefore, the protrusion can extend primarily in the circumferential direction. This means that the geometric extension in the circumferential direction can be greater than the geometric extension in the axial direction. However, the protrusion can also have a block-like geometry. In this design, the geometric extension in the circumferential direction and the geometric extension in the axial direction can be approximately equal. Generally, the protrusion can be arranged such that it can be located in the lower half of the receiving space of the lock housing. This allows the actual locking of the locking actuator to occur quite deep inside the lock housing, which also makes it less likely for dust or dirt to enter that area.

[0029] According to an advantageous further improvement, the protrusion is provided with an inner surface designed as a sliding surface on which the locking actuator is guided. Therefore, when actuated or rotated about the axis of rotation, the locking actuator can slide on the sliding surface. Thus, the protrusion can serve as a sliding support for the locking actuator (particularly for the first actuation unit). The inner surface can be the surface of the protrusion, which is aligned parallel to the inner surface of the lock housing and thus faces the axis of rotation. If multiple protrusions are provided (as will be described in more detail below), the corresponding sliding surfaces of the protrusions can collectively guide the locking actuator. Advantageously, the protrusions are evenly distributed in the circumferential direction.

[0030] A further advantageous improvement of the invention provides that the second fixing element has at least two protrusions spaced apart from each other, and a gap is arranged between the ends of the two protrusions. Due to the circumferential arrangement, two gaps can also be provided. The gaps can be located at the same height as the protrusions in the axial direction, and these gaps can be arranged circumferentially between the protrusions or between the ends of two adjacent protrusions. One or more gaps can be designed as a locking profile in which the first fixing element can be fixed in a locked position to prevent rotational movement. The protrusions and gaps can be part of a guiding mechanism, or the protrusions and gaps can form a guiding mechanism.

[0031] From a functional perspective, it has proven advantageous if the first fixing element can move into one gap in the unlocked position and into another gap in the locked position (especially if the first fixing element can snap into these gaps). When the first fixing element is in one gap, the protrusion prevents the locking element from rotating. Therefore, the unlocked position can be assigned to one gap, and the locked position of the locking element or locking actuator can be assigned to the other gap. The two gaps can be offset from each other in the circumferential direction or arranged at a 90-degree interval, so that the locking actuator can subsequently also rotate 90 degrees back and forth between the locked and unlocked positions. The snap-fit ​​connection can be achieved by preloading the first actuation unit relative to the second actuation unit. This means that the first fixing element can be moved into the gap by a spring disposed between the two actuation units. No further manual intervention is required for this.

[0032] Furthermore, it has proven advantageous if the first retaining element can engage behind the protrusion in the release position. In the release position, the locking actuator and the first retaining element can rotate back and forth between the locked and unlocked positions. During this process, the first retaining element can engage behind the protrusion, such that the first retaining element is subsequently positioned between the protrusion and the bottom of the lock housing. Due to the preload of the first retaining element, it can abut against the corresponding lower side of the protrusion with a certain force from below (i.e., from the bottom of the lock housing). This preload force can then cause the first retaining element to automatically engage in the gap upon reaching it, such that the first retaining element is subsequently secured between the two protrusions. Thus, the protrusion can act as a guide, or the first retaining element can be guided behind the protrusion in the release position, and the two gaps or retaining profiles can be connected to each other via the guide. This allows the first retaining element to move back and forth between the two gaps in a guided manner.

[0033] According to a further advantageous improvement, the second fixing element is provided with four protrusions spaced apart from each other, and gaps are arranged between the ends of the protrusions. A particular feature of this design is its variability in height. This is because the four protrusions also create four gaps, thus creating four different positions in which rotational movement of the first fixing element can be prevented. The gaps can be arranged offset from each other by 90 degrees in the circumferential direction, and in this respect, are distributed at regular intervals around the circumference. Overall, this design allows the same rotary latch lock to be used for both left-hinged and right-hinged doors.

[0034] Furthermore, it has proven advantageous if at least one protrusion has a stop surface for limiting the rotational movement of the locking actuator, particularly in the release position. The stop prevents excessive rotation and ensures that the first retaining element can move from the release position to a fixed position between the protrusions when the stop is reached. Due to the stop, a stop on the lock housing side that limits the movement of the locking element can sometimes be omitted. Advantageously, the locking element is rigidly coupled to the first retaining element in a rotational manner. This means there is no gearbox between them, but rather that a movement of the actuating unit at a certain angle causes the locking element to perform the same movement. In this respect, limiting the movement of the actuating unit or the first retaining element also achieves reliable rotational limitation of the locking element.

[0035] According to an advantageous further improvement of the invention, two opposing protrusions are connected to each other via a connecting section to form a cam track, particularly a U-shaped cam track. A further protrusion can be arranged between the two connected protrusions, thereby creating a U-shaped cam track, and the two gaps between them are connected to each other via a channel. Each of the connected protrusions can have a stop surface, thereby restricting the rotational movement of the first fixing element in both directions. In this respect, a stop on the lock housing side can also be omitted in this design. The connecting section can have the same radial extension as the protrusion, and therefore can also extend from the wall of the lock housing or sleeve in the direction of the axis of rotation. The connecting section can be formed circumferentially, and therefore the wall thickness of the lock housing or sleeve can be strengthened in this region. The aforementioned channel can be arranged between the connecting section and a protrusion not connected to the other protrusion. Furthermore, the connecting section can be arranged between the protrusion and the bottom of the lock housing.

[0036] According to an advantageous further improvement of the invention, the second fixing element is molded onto the lock housing. Therefore, the second fixing element, or one or more protrusions, can be part of the lock housing and directly connected to it. Advantageously, the second fixing element is integrally formed into the lock housing and thus integrally connected to it. For example, it can be manufactured using a casting process. However, a machining process can also be used to machine the inside of the lock housing to form the second fixing element. Therefore, the second fixing element or protrusion can be molded onto the inside of the lock housing, which is particularly cylindrical.

[0037] Alternatively, the second fixing element can be securely connected to the lock housing in another manner, such as via brazing, welding, or adhesive bonding. In this regard, the second fixing element can then be inserted into the lock housing. A radial notch can also be provided in the lock housing, into which the protrusion can be inserted from the inside.

[0038] Furthermore, one or more protrusions may be specified to extend through an opening in the lock case. For example, the lock case may have a radial opening through which one or more protrusions may be inserted from the outside of the case, such that they extend in the direction of the axis of rotation and then protrude from the inside of the lock case in the manner described above. This design can have manufacturing advantages. In this case, brazing, welding, or adhesive connections may also be provided. However, threaded connections are also possible, i.e., one or more protrusions may be screwed into the lock case. It is also possible that one or more protrusions are implemented by end elements attached to the outside of the case.

[0039] According to an alternative embodiment of the invention, a second fixing element is arranged on a sleeve, which is arranged in a rotation-resistant manner within the lock housing. Therefore, in this embodiment, the second fixing element is not directly connected to the lock housing; instead, the sleeve is connected to the lock housing and the second fixing element is connected to the sleeve. By arranging the second fixing element on the sleeve, the two fixing elements can interact or engage with each other even before being assembled into the lock housing, thus allowing the locking actuator to be mounted in a fixed position within the lock housing. This generally simplifies the assembly process. However, compared to arranging the second fixing element on the lock housing, at least one additional element in the form of a sleeve is required.

[0040] To prevent the sleeve from rotating relative to the lock housing, particularly when actuating the locking actuator, it has proven advantageous for the sleeve to have at least one, and particularly four, axially projecting lugs. These lugs engage in receiving sections on the lock housing side to connect the sleeve to the lock housing in an anti-rotation manner. Thus, the lugs and receiving sections ensure a reliable positive connection between the sleeve and the lock housing. One or more lugs may extend in the axial direction, i.e., in the direction of the rotation axis or actuation axis. Therefore, the lugs can be designed to project axially. One or more receiving sections may be designed to correspond to one or more lugs and thus also extend in the axial direction. Therefore, the receiving sections can be designed to project axially. The four lugs and the corresponding four receiving sections have proven advantageous in practice for ensuring a reliable positive connection and preventing relative movement. Advantageously, the lugs and notches are evenly distributed circumferentially, such that they are each spaced 90 degrees circumferentially. Overall, the sleeve can thus be fixed to prevent rotation relative to the lock housing.

[0041] Regarding the design of the sleeve, it has proven advantageous to design it as a one-piece sleeve. This design makes assembly very easy. This is because the locking actuator or two actuator units can be assembled first in the sleeve, and then the sleeve and locking actuator are arranged together in the lock housing as an assembly unit. The one-piece, integral sleeve ensures simple assembly and reliable handling.

[0042] Furthermore, for the sleeve, having a closed cylindrical section (especially in the circumferential direction) and a flange section projecting radially from the cylindrical section has proven advantageous. Thus, the sleeve can have a basin-like geometry. The outer surface of the cylindrical section can be fitted to the inside of the lock housing, such that the cylindrical section or its outer surface can rest as flat as possible against the inside of the lock housing during assembly. The inner diameter of the lock housing and the outer diameter of the cylindrical section can therefore be equal or approximately equal. Thus, the cylindrical section can serve a guiding function during assembly into the lock housing. The flange section can project radially from its outer end relative to the cylindrical section in the circumferential direction. Thus, during assembly, the flange section is visible from the outside, while the cylindrical section can be arranged invisibly within the lock housing. The lock housing can have a notch fitted to the flange section, such that the flange section is flush with the top of the lock housing. Subsequently, the sleeve or flange section can be arranged within the contour of the lock housing.

[0043] According to an advantageous further improvement of the invention, the sleeve (particularly the flange section) can be connected to the lock housing in a form-fit manner. This form-fit connection ensures that the sleeve cannot rotate relative to the lock housing. Therefore, the sleeve can provide reliable, fixed support for the rotatable locking actuator. This also ensures a fixed and predetermined locked and unlocked position and prevents slippage.

[0044] From a design perspective, this can be achieved by arranging one or more lugs on the flange segment. As described above, one or more lugs can extend axially from the flange segment toward the lock case. A correspondingly designed receiving segment on the lock case side can be arranged inside the flange of the lock case. The lugs can be evenly arranged around the flange segment in the circumferential direction.

[0045] According to a particularly advantageous further improvement of the invention, the sleeve is proposed to be designed as a two-piece sleeve having two sleeve sections that can be connected to each other. This two-piece design has proven advantageous in terms of assembly and allows for easy arrangement of the locking actuator or two actuation units within the sleeve. For this purpose, the two actuation units can be first arranged in one of the two sleeve sections, and then in a next step, the other sleeve section can be connected to the first sleeve section to secure the two actuation units within the sleeve. The sleeve can be designed to be tubular or cylindrical and divided longitudinally into two sleeve sections. The two sleeve sections can be designed to be shell-like to allow rotation of the locking actuator or two actuation units. Each sleeve section can have at least one protrusion. This allows the first fixing element to interact with the second fixing element on both sides.

[0046] Furthermore, it has proven advantageous to have two sleeve sections surrounding the locking actuator. The locking actuator can be arranged in the sleeve or in both sleeve sections before being installed into the lock housing, and in a next step, the locking actuator can be installed into the lock housing together with the sleeve.

[0047] According to an advantageous further improvement of the invention, it is envisioned that the two actuating units and the sleeve form a pre-assembled assembly unit that can be mounted in the lock housing. This design simplifies assembly because the individual components (i.e., the actuating units and the sleeve) can be assembled in the lock housing before actual assembly and then inserted into the lock housing as a whole in the axial direction. Axial fixation in the lock housing can then be achieved by mounting a locking element on the portion of the second actuating unit that protrudes from the lock housing.

[0048] According to an advantageous design, the two sleeve segments can be designed as identical components. This has proven advantageous, particularly in terms of manufacturing costs. Each sleeve segment can have a 180-degree circumferential angle, resulting in a closed hollow cylinder shape when the two sleeve segments are joined together. To achieve reliable securing within the lock housing, each sleeve segment can be equipped with at least one lug to ensure reliable anti-rotation. Furthermore, the two sleeve segments can be designed to snap together to ensure reliable retention and easy handling of the assembled unit.

[0049] According to a further advantageous embodiment of the invention, the sleeve is designed as a four-piece sleeve, consisting of four sleeve segments that can be connected to each other. This four-piece design may be advantageous in terms of assembly. To simplify assembly, the four sleeve segments can be connected to each other. In this regard, please refer to the description of the two-piece sleeve above. It is also advantageous that the sleeve segments of the four-piece sleeve are designed as identical components, which has particular advantages in terms of production and manufacturing costs. In this design, each sleeve segment can have a 90-degree circumferential angle, such that connecting the four sleeve segments forms a closed hollow cylinder in which the locking actuator can be arranged. Each sleeve segment can be designed with a lug to achieve a reliable positive connection with the lock housing. Attached Figure Description

[0050] Figure 1a A three-dimensional side view of the rotary latch is shown;

[0051] Figure 1b It shows that according to Figure 1a An exploded view of a rotary tongue lock;

[0052] Figure 1c It shows that according to Figure 1a Exploded views of a rotary tongue lock from different perspectives;

[0053] Figure 1d It shows that according to Figure 1a A three-dimensional sectional view of a rotary latch;

[0054] Figure 1e A three-dimensional detailed view of the lock case is shown.

[0055] Figures 2a to 2cVarious perspective views of a rotary latch lock with a second fixing element located on the side of the lock housing are shown;

[0056] Figures 3a to 3c Various perspective views of a rotary latch with an integrated sleeve are shown;

[0057] Figures 4a to 4c Various perspective views of a rotary latch lock with a two-piece sleeve are shown;

[0058] Figures 5a to 5c Various perspective views of a rotary lock with a four-piece sleeve are shown. Detailed Implementation

[0059] Figure 1a A rotary latch 11 is shown in a perspective side view. This rotary latch 11 can be used to lock a door against a door frame. The structure and internal configuration of the rotary latch 11 can be seen in... Figure 1b As seen in the exploded view, the rotary latch 11 has a locking element 5 in the form of a latch, which can rotate back and forth between a locked position and an unlocked position about a rotation axis D. In the locked position, the latch engages behind the frame of a door (not shown), fixing the door relative to the door frame and preventing it from opening. When the latch rotates back to the unlocked position, the door can move relative to the frame and open.

[0060] In order to rotate the locking element 5 accordingly, the rotary latch 11 has a locking actuator 4, which is basically composed of a first actuation unit 2 and a second actuation unit 3, which are arranged front and back in the axial direction, wherein the first actuation unit 2 is arranged on the outside relative to the lock housing 1, and the second actuation unit 3 is arranged on the inside.

[0061] The internal second actuation unit 3 extends through the bottom 1.2 of the lock housing 1 and is rotatably connected to the locking element 5 at its end, so that the locking element 5 can rotate together with the two actuation units 2 and 3 about the rotation axis D. A sealing ring 9 is provided between the second actuation unit 3 and the bottom 1.2 of the lock housing 1, which ensures that dirt and moisture cannot enter the interior of the lock housing 1.

[0062] To connect the locking element 5 to the locking actuator 4 or the second actuation unit 3, the second actuation unit 3 has a profile 3.3 with a square outline at its end, onto which the locking element 5 can be pushed in an anti-rotation manner. The corresponding profile 3.3 and the correspondingly designed receiving section of the locking element 5 can be... Figure 1b and Figure 1cAs clearly seen in the diagram, to secure the locking element 5 to the second actuating unit 3 in the axial direction, the second actuating unit 3 has a hole at its end into which a bolt 5.2 can be screwed. The locking element 5 is then securely connected to the second actuating unit 3 or the entire locking actuator 4 via the bolt 5.2.

[0063] Axial fixation of the locking actuator 4 within the lock housing 1 is achieved by connecting the end of the second actuating unit 3, which extends through the circular notch 1.7 in the bottom 1.2 of the lock housing 1, to the locking element 5. This is because once the end of the second actuating unit 3 is inserted through the notch 1.7 and fitted with the locking element 5, it is no longer possible to pull the second actuating unit 3 out of the lock housing 1, as the locking element 5 does not fit through the bottom notch 1.7. In this respect, the locking element 5 can be used to achieve axial fixation within the housing.

[0064] On the opposite side, the locking actuator 4 or the first actuation unit 2 has an actuation segment 2.2, through which the locking actuator 4 can be rotated back and forth about the rotation axis D using a suitable tool, thereby causing the locking element 5 to also rotate back and forth about the rotation axis D.

[0065] In order to transmit torque from the actuation segment 2.2, which can be manually operated, to the locking element 5, the two actuation units 2 and 3 are rotatably connected to each other. This means that a rotation of the actuation segment 2.2 by a certain angle will cause the locking element 5 to rotate by the same angle.

[0066] For rotary couplings, the first actuating unit 2 has a hole 2.3 extending transversely to the rotation axis D, and the second actuating unit 3 has a hole 3.4 designed as an elongated hole. For example, as in Figure 1b As shown in the diagram, a first fixing element 6.1 in the form of a pin (whose further function will be explained in more detail below) is provided, which extends through holes 2.3 and 3.4 of the two actuating units 2 and 3. Therefore, the first fixing element 6.1 connects the two actuating units 2 and 3 to each other in a form-fitting manner in the rotational direction. The fixing element 6.1 and the first actuating unit 2 are both rotatably and axially connected relative to the axis of rotation.

[0067] The lock housing 1 has a circumferential notch, the end regions of which each define a stop 1.5. This can be seen specifically in the illustration of Figure 1. The stops 1.5 are arranged at an angle slightly greater than 90 degrees in the circumferential direction, such that the axially projecting stop lugs 5.1 of the locking element 5 in the direction of the lock housing 1 contact one stop 1.5 in the locked position and the other stop 1.5 in the unlocked position, and can rotate back and forth by 90 degrees. The corresponding stop lugs 5.1 are in Figure 1b As shown in the illustration.

[0068] To install the rotary latch 11 on a door, it is first inserted through an opening in the door, such that the flange 1.4, located at the end and projecting radially around the circumference, rests on the surface of the door. In the next step, the nut 12 can then be screwed onto the thread 1.3 of the lock housing 1 from the other side of the door, positioning the door between the flange 1.4 and the nut 12, and thus attaching the lock housing 1 to the door. The other components of the rotary latch 11 are then mounted or attached to the lock housing 1, either directly or indirectly.

[0069] A special feature of the rotary latch 11 is that it is designed as a safety rotary latch, meaning that it is not possible to simply rotate the locking actuator 4 from the locked position to the unlocked position, or from the unlocked position to the locked position. Instead, the locking actuator 4 and the locking element 5 are both secured in place in the locked and unlocked positions by an anti-reverse lock 6, thereby preventing accidental movement that may occur due to vibration.

[0070] The anti-reverse lock 6 essentially consists of two elements: a first fixing element 6.1 and a second fixing element 6.2. As described above and shown in Figure 1, the first fixing element 6.1 is designed as a pin and is associated with or rotatable via the locking actuator 4. The second fixing element 6.2 is arranged in a fixed position relative to the first fixing element 6.1. The second fixing element 6.2 is designed as a cam track guide in which the first fixing element 6.1 is guided.

[0071] The two actuation units 2 and 3 of the locking actuator 4 are rotatably connected to each other in the manner described above, but the first actuation unit 2 is movable relative to the second actuation unit 3 in the axial direction (i.e., in the direction of the rotation axis D) between the released and locked positions. A spring 9.1 is provided between the two actuation units 2 and 3, which biases the first actuation unit 2 axially outward to the locked position.

[0072] When the first actuating unit 2 is in the locked position, it is impossible to rotate the locking actuator 4 about the rotation axis D. This means that the locking element 5 is fixed in its respective locked or unlocked position. In order to subsequently move the locking element 5 to its respective other position, the first actuating unit 2 must first be moved from the locked position to the released position. To do this, the first actuating unit 2 must be moved relative to the second actuating unit 3 in the axial direction by means of pressure. Only in this pressed-out released position can the locking actuator 4 subsequently rotate about the rotation axis D.

[0073] This relative axial movement is achieved through an elongated hole in the second actuating unit 3, which is axially fixed in the lock housing 1 and thus arranged to prevent axial movement. This is because when the first actuating unit 2 is pressed inward against the force of the spring 9.1 in the axial direction and thus moves from the locked position to the released position, the first retaining element 6.1 moves toward the bottom 1.2 of the lock housing 1 in the elongated hole until it reaches the lower end of the elongated hole. The two ends of the elongated hole thus act as stops, and in the released position (when the locking actuator can rotate about the axis of rotation D), the first retaining element 6.1 rests against the lower end of the elongated hole, and in the locked position against the upper end.

[0074] The second actuation unit 3 has a circular profile 3.1 at its outer end opposite to the angled profile 3.3, through which the second actuation unit 3 is guided in a linearly movable manner within the cylindrical receiving section of the first actuation unit 2.

[0075] The first fixing element 6.1 protrudes laterally on opposite sides of the actuating units 2 and 3, such that the protruding portion of the fixing element 6.1 is designed as a bulge. This protruding portion now engages with the second fixing element 6.2, which, in a fixed position, allows only axial movement and not rotational movement.

[0076] To prevent the locking actuator 4 from rotating in the locked position, a second fixing element 6.2 is arranged on the inner side 1.1 of the lock housing 1, such as... Figure 1d As shown. A total of four circumferentially evenly distributed protrusions 6.3 are provided, extending from the inner side 1.1 along the direction of the rotation axis D. This can be particularly evident in… Figure 1e As seen in the diagram on the right, there are corresponding gaps 6.4 between the protrusions 6.3 or at the circumferential ends of the protrusions 6.3, and due to their regular arrangement in the circumferential direction, the corresponding gaps 6.4 are offset from each other by 90 degrees.

[0077] In the locked position, the first fixing element 6.1, or its laterally projecting end, is now arranged in the gap 6.4, such that rotational movement of the first fixing element 6.1, and thus also reliably prevents rotational movement of the locking actuator 4. This is because the protrusion 6.3 blocks any corresponding rotational movement. When the end of the first fixing element 6.1 is thus arranged between the protrusions 6.3, the first fixing element 6.1 is in the fixed position and the locking actuator 4 is in the locked or unlocked position.

[0078] In order to rotate the locking actuator 4 and thus move the locking element 5 from the unlocked position to the locked position, or vice versa, the first retaining element 6.1 must first be moved out of the gap 6.4 between the protrusions 6.3. This can be done by manually pressing the first actuating unit 2 from behind, causing the first actuating unit 2 and the first retaining element 6.1 to resist the force of the spring 9.1 and move inward relative to the second actuating unit 3 and the lock housing 1, i.e., towards the bottom 1.2 of the lock housing 1. This then moves the first retaining element 6.1 out of the area between the protrusions 6.3. Once the first retaining element 6.1 is out of the gap 6.4, it is in the released position. In this position, the locking actuator 4 can then be rotated about the axis of rotation D to lock or unlock the locking element 5. The retaining element 6.1 moves behind the protrusion 6.3 or between the protrusion 6.3 and the bottom 1.2 of the lock housing 1.

[0079] Once the first retaining element 6.1 has rotated far enough to move along the protrusion 6.3 to another gap 6.4, upon reaching that gap, it engages in the next gap 6.4 under the drive of the spring 9.1. This is because the spring 9.1 pushes the first actuating unit 2, and thus also the first retaining element 6.1, outward and thus into the released position, and pushes it against the protrusion 6.3 from below when the locking actuator 4 is rotated. Upon reaching the gap 6.4, the first retaining element 6.1 then engages in the gap 6.4 under the drive of the spring 9.1, thus preventing further rotation of the locking actuator 4. To further rotate or rewind the locking actuator 4, the outer actuating unit 2 must first be moved back into the lock housing 1 by applying pressure in the manner described above, in order to release the rotational fixation due to the adjacent protrusion 6.3 or gap 6.4. This creates a "Push + Turn" mechanism, which is also indicated on the outside of the lock housing 1.

[0080] In terms of design, the protrusion 6.3 has a strip-shaped geometry and extends from the inner side 1.1 of the lock housing 1 along the direction of the rotation axis D, and thus extends into the receiving space 1.6 of the lock housing 1 that houses the locking actuator 4. The inner surface of the protrusion 6.3 pointing in the direction of the rotation axis D is designed as a sliding surface 6.31, which together form a sliding support for the locking actuator 4. This is because the locking actuator 4 or the first actuation unit 2 is centered by the protrusion 6.3 or the sliding surface 6.31 and slides on the sliding surface 6.31 during rotational movement about the rotation axis D.

[0081] Figures 2a to 2c The diagram now shows a rotary latch 11, which functions essentially the same as... Figures 1a to 1e The rotary latch 11 shown is the same. However, the lock case 1 is different. Figure 1bThe lock housing 1 shown in the illustration is longer, and the two actuating units 2 and 3 are also slightly longer in design. However, the second actuating unit 3 is again housed within the first actuating unit 2, and the two actuating units 2 and 3 are rotatably connected to each other via a pin-shaped first fixing element 6.1, but can move axially relative to each other within certain limits. The first fixing element 6.1 can extend completely through both actuating units 2 and 3, or it can protrude only from one side of the actuating units 2 and 3. This also applies to all other embodiments.

[0082] Furthermore, the design of protrusion 6.3 differs slightly from that of the aforementioned protrusion 6.3. This is because... Figure 2a The protrusions shown have a significantly greater geometric extension in the axial direction, and are therefore more blocky and less strip-like. Furthermore, in this embodiment, although four protrusions 6.3 and four gaps 6.4 are again provided, but compared with those according to... Figure 1d Unlike other designs, the first fixing element 6.1 can only be moved from one gap 6.4 into a single other gap 6.4. This means that only two gaps 6.4 are connected in pairs.

[0083] For this purpose, two of the four protrusions 6.3 are connected to each other via connecting segments 6.6, which can be, for example, in... Figure 2a As shown in the diagram, this connection creates stop surfaces 6.32 on the left and right sides of the protrusion 6.3, which prevent the first retaining element 6.1 from moving beyond the gap 6.4 in the circumferential direction. This means that the locking actuator 4 can only rotate until the first retaining element 6.1 rests against one of the stop surfaces 6.32. In this position, the retaining element can then be moved axially along the stop surface 6.32 from the released position to the locked position. Assuming no continuous pressure is applied to the first actuating unit 2, in this design, when the spring 9.1 reaches the stop surface 6.32 or the gap 6.4, the first retaining element 6.1 also automatically engages in the gap 6.4, and then the locking actuator 4 is prevented from rotating.

[0084] from Figure 2a As shown in the diagram, a U-shaped channel is arranged between the connecting section 6.6 and the protrusion 6.3. This U-shaped channel serves as a cam track 6.5, and the first fixing element 6.1 can move back and forth between the two gaps 6.4 within it. Since the connecting section 6.6 protrudes beyond the inner surface 1.1 of the lock housing 1, a shoulder 6.51 is provided between the cam track 6.5 and the connecting section 6.6. This shoulder downwards restricts the cam track 6.5, i.e., towards the bottom 1.2 of the lock housing 1. Furthermore, the connecting section 6.6 is integrally formed onto the lock housing 1 and borders the bottom 1.2 of the lock housing 1 in its lower region. Overall, the connecting section 6.6 is designed as a wall thickness reinforcement for the lock housing 1.

[0085] Since in this embodiment the first fixing element 6.1 can only move between two adjacent gaps 6.4, and the interconnected protrusions 6.3 or stop surfaces 6.32 provide rotational limitation, the lock housing 1 does not absolutely need to have rotational angle limitation in the form of a stop, just as according to Figures 1a to 1e That is not the design. Instead, the rotation angle limitation can be achieved through the design of the second fixing element 6.2 or the protrusion 6.3.

[0086] Figures 3a to 5c The further embodiments shown are now related to those according to Figures 1a to 2c The main difference in this embodiment is that the second fixing element 6.2 is no longer part of or molded onto the lock housing 1, but rather is now part of the sleeve 7 that can be connected to the lock housing 1 in an anti-rotation manner. Furthermore, the sleeve 7 simplifies overall assembly because the locking actuator 4 can be assembled in the sleeve 7 before actual assembly into the lock housing 1. After this pre-assembly, the locking actuator 4, together with the sleeve 7, can then be integrally installed into the lock housing 1 as assembly unit 10. The corresponding assembly unit 10 can be, for example... Figure 3b and Figure 5b As seen in the illustration.

[0087] The following section will primarily describe the design of sleeve 7. For the design and function of other components, please refer to the explanations above. Figures 3a to 3c The rotary latch 11 has an integral sleeve 7. The sleeve 7 has an overall basin-shaped geometry and is characterized by a hollow cylindrical section 7.6 and a flange section 7.7 disposed at the outer end of the cylindrical section 7.6 and projecting radially outward from the cylindrical section 7.6. The sleeve 7 is designed such that, during assembly, it is completely within the contour of the lock housing 1. The outer surface of the cylindrical section 7.6 is generally flush with the inner side 1.1 of the lock housing 1, or the cylindrical section 7.6 and the lock housing 1 are arranged concentrically relative to each other.

[0088] The lock case has a circumferential notch in the outer end region or in the flange 1.4 region, which, measured from the outer surface of the lock case 1, has a geometric extension with the same thickness as the flange segment 7.7. This allows the outer surface of the flange segment 7.7 to be flush with the outer surface of the lock case 1 during assembly. Figure 3c In the illustrated embodiment, the words "Push + Turn" therefore also appear on the outer surface of the flange segment 7.7, rather than on the lock housing 1 itself, as in, for example, in Figure 1e As seen in the illustration.

[0089] To prevent the sleeve 7 from rotating when the locking actuator 4 is rotated, and instead ensure that it is connected to the lock housing 1 in an anti-rotation manner, the sleeve 7 has a number of lugs 7.71 protruding in the axial direction in the region of the flange section 7.7. These lugs 7.71, or protrusions, extend a short distance along the outer side of the cylindrical section 7.6 and engage in a correspondingly shaped receiving section 1.8 of the lock housing 1. This receiving section 1.8 is designed as a notch and also extends in the axial direction, thus the receiving section 1.8 is parallel to the axis of rotation D. Figure 3c As can be clearly seen in the diagram, there are a total of four corresponding lugs 7.71, and correspondingly four receiving sections 1.8 are provided on the lock housing side, which realizes the shape-fitting rotary connection between the sleeve 7 and the lock housing 1.

[0090] To prevent rotational movement of the locking actuator 4 in the locked position, a second fixing element 6.2 is arranged inside the sleeve 7. The specific design of the fixing element 6.2 is as follows: Figure 3c As can be seen in the diagram on the right, a total of four protrusions 6.3 are provided, evenly distributed around the circumference, extending from the cylindrical segment 7.6 along the axis of rotation D. Corresponding gaps 6.4 exist between the protrusions 6.3, or at the ends of the protrusions 6.3, offset by 90 degrees from each other due to their regular arrangement in the circumferential direction.

[0091] Compare Figure 3c and Figure 1d The illustration shows that protrusions 6.3 are essentially the same in design, meaning they function the same. However, the only difference is that protrusion 6.3 is located inside the sleeve 7, rather than inside the lock housing 1 1.1. Please refer to the explanation above for protrusion 6.3.

[0092] Figures 4a to 4c A design with a two-piece sleeve 7 is now shown, wherein the design of the locking actuator 4 is consistent with... Figures 3a to 3c The correspondence shown is consistent with the one indicated by the diagram. Figures 3a to 3c Similar to the design, the second fixing element 6.2 of the sleeve 7 has four protrusions 6.3 and gaps 6.4 arranged between the protrusions 6.3.

[0093] from Figure 4a As shown in the illustrations, each of the two sleeve segments 7.1 and 7.2 has two protrusions 6.3, resulting in four protrusions 6.3 and four corresponding gaps 6.4 in this design. The first fixing element 6.1 can engage into these gaps 6.4. Unlike the one-piece sleeve 7, the two-piece sleeve 7 shown does not have a flange segment 7.7. Instead, the two sleeve segments 7.1 and 7.2 have a shell-like geometry, so that the two sleeve segments 7.1 and 7.2 form a hollow cylinder when assembled, as explained above with reference to the illustrations in Figures 1 and 4.

[0094] To ensure that the two-piece sleeve 7 is also arranged in an anti-rotation manner within the lock housing 1, each sleeve section 7.1, 7.2 has at least one lug 7.71 protruding in the axial direction. Figure 4c As can be clearly seen in the diagram, each sleeve segment 7.1 and 7.2 has a lug 7.71 in the middle area and half a lug 7.71 at each end area, so that during assembly, a total of four lugs 7.71 are evenly distributed circumferentially, basically conforming to... Figures 3a to 3c The design shown is the same.

[0095] Unlike the lug 7.71 which is arranged on the flange section 7.7, the lug 7.71 on the two-piece sleeve 7 is arranged on the cylindrical section 7.6, i.e., at the lower end. Correspondingly, the lock housing 1 also has a correspondingly designed receiving section 1.8 in the bottom 1.2 region, into which the lug 7.71 can engage in a form-fitting manner to prevent the sleeve 7 from rotating within the lock housing 1. These receiving sections 1.8 are... Figure 4b It is particularly clear in the illustration on the right that this Figure 4b The right side of the diagram shows a perspective sectional view of the inner side of the bottom 1.2 of the lock case 1.

[0096] Figures 5a to 5c The illustration now shows a further design of the rotary tongue lock 11, which is largely consistent with... Figures 4a to 4c The design shown corresponds to this. The main difference is that sleeve 7 is designed as a four-piece sleeve 7. This means that in Figure 5a The sleeve segments 7.1 and 7.2 shown are each further subdivided. Therefore, each of the four sleeve segments 7.1 and 7.2 has a 90-degree circumferential angle and correspondingly has a protrusion 6.3 and a lug 7.71, as shown in... Figure 5c This can be clearly seen in the illustration.

[0097] In summary, the rotary latch 11 reliably prevents accidental rotation of the locking actuator 4 and the corresponding locking element 5, whether in the locked or unlocked position. Furthermore, the sleeve 7 allows for relatively simple installation within the lock housing 1. Figure label: 1 Lock case 1.1 Inner side 1.2 Bottom 1.3 Threads 1.4 Flange 1.5 Stopping component 1.6 Capacity 1.7 Notch 1.8 Accommodation Section 2 First Coherent Motion Unit 2.2 Actuation segment 2.3 Hole 3 Second Actuation Unit 3.1 Outline 3.2 Flange 3.3 Outline 3.4 Holes 4. Locking actuator 5 Locking elements 5.1 Stop lug 5.2 Bolts 6 Anti-reverse lock 6.1 First fixed element 6.2 Second fixing element 6.3 Protrusion 6.31 Sliding Surface 6.32 Stop surface 6.4 Clearance 6.5 Cam Rail 6.51 Shoulder 6.6 Connecting Section 7 sleeves 7.1 Sleeve Section 7.2 Sleeve Section 7.6 Cylindrical segment 7.7 Flange Section 7.71 Protruding Ear 9. Sealing ring 9.1 Springs 10 Assembly Units 11. Rotary tongue lock 12 nuts D. Rotation axis

Claims

1. A rotary latch lock, particularly a security rotary latch lock, the rotary latch lock having a lock housing (1) and a locking actuator (4) rotatably mounted in the lock housing (1), the locking actuator (4) being connected to a locking element (5), particularly to the latch, and the locking actuator (4), together with the locking element (5), being capable of rotating back and forth about a rotation axis (D) between a locked position and an unlocked position for locking and unlocking a door, the rotary latch lock having an anti-reverse lock (6) for securing the locking actuator (4) in place at least in its locked position, wherein, The anti-reverse lock (6) has a first fixing element (6.1) and a second fixing element (6.2), wherein the two fixing elements (6.1, 6.2) interact with each other to prevent accidental rotation of the locking actuator (4), characterized in that the first fixing element (6.1) is arranged to rotate together with the locking actuator (4), and the second fixing element (6.2) is arranged to be anti-rotationally fixed to the lock housing (1), wherein the second fixing element (6.2) is designed as a cam track guide.

2. The rotary tongue lock according to claim 1, characterized in that, The first fixing element (6.1) is movable between a release position and a fixed position, in which the locking actuator (4) is movable between the locking position and the unlocking position, and in the fixed position, the rotational movement is prevented.

3. The rotary tongue lock according to claim 1 or 2, characterized in that, The locking actuator (4) has first and second actuation units (2, 3), wherein the two actuation units (2, 3) are rotatably connected to each other via the first fixing element (6.1).

4. The rotary tongue lock according to claim 3, characterized in that, The two actuation units (2, 3) are arranged to be movable relative to each other in the axial direction.

5. The rotary tongue lock according to claim 3 or 4, characterized in that, The second actuation unit (3) has a hole (3.4) designed as an elongated hole, in which the first fixing element (6.1) is guided to move linearly.

6. The rotary lock according to any one of the preceding claims, characterized in that, The second fixing element (6.2) has at least two protrusions (6.3) extending in the radial direction and particularly designed in the form of strips, wherein the protrusions (6.3) are arranged to be spaced apart from each other, and in each case, a gap (6.4) is arranged between the ends of the two protrusions (6.3).

7. The rotary tongue lock according to claim 6, characterized in that, The first fixing element (6.1) can engage in one gap (6.4) in the unlocked position and in another gap (6.4) in the locked position.

8. The rotary tongue lock according to claim 6 or 7, characterized in that, Two opposing protrusions (6.3) are connected to each other via a connecting segment (6.6) to form a cam track (6.5), particularly a U-shaped cam track.

9. The rotary lock according to any one of the preceding claims, characterized in that, The second fixing element (6.2) is integrally formed onto the lock housing (1).

10. The rotary lock according to any one of the preceding claims, characterized in that, The second fixing element (6.2) is arranged on the sleeve (7), which is arranged in the lock housing (1) in an anti-rotation manner.

11. The rotary tongue lock according to claim 10, characterized in that, The sleeve (7) has at least one, particularly four, axially projecting lugs (7.71) that can engage in a receiving section (1.8) on the lock housing side to connect the sleeve (7) to the lock housing (1) in an anti-rotation manner.

12. The rotary tongue lock according to claim 10 or 11, characterized in that, The sleeve (7) is designed as a one-piece sleeve (7).

13. The rotary lock according to any one of claims 10 to 12, characterized in that, The sleeve (7) has a cylindrical section (7.6) that is closed in the circumferential direction and a flange section (7.7) that protrudes radially from the cylindrical section (7.6).

14. The rotary tongue lock according to claim 10 or 11, characterized in that, The sleeve (7) is designed as a two-piece sleeve (7) and has two sleeve sections (7.1, 7.2) that can be connected to each other, the two sleeve sections (7.1, 7.2) being designed as identical components.

15. The rotary tongue lock according to claim 10 or 11, characterized in that, The sleeve (7) is designed as a four-piece sleeve (7) and consists of four sleeve segments (7.1, 7.2) that can be connected to each other, the four sleeve segments (7.1, 7.2) being designed as identical components.

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