Locking device
Patent Information
- Application Number
- EP2024765021
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-08-18
- Filing Date
- 2024-08-14
- Publication Date
- 2025-11-19
Smart Images
Figure DE2024100723_27022025_PF_FP_ABST
Abstract
Description
[0001] locking device
[0002] The invention relates to a locking device for locking a closing element, in particular a door, comprising a recess, a pivoting lever which is hingedly mounted on the recess and which, in an extended position, can be rotated back and forth about an actuating axis and, in a folded position, is held in the recess via a holding device, and a release device, in particular a locking cylinder, which is coupled to the holding device via a coupling device such that the holding device can be released via the release device. The invention further relates to a door with a corresponding locking device. Corresponding locking devices can be used in various fields of technology to reliably lock closing elements, such as doors, flaps, hatches, lids, windows, or the like.Once the locking elements are locked using the locking device, they can no longer be opened; they must first be unlocked. Typical applications include construction machinery, generators, and commercial vehicles.
[0003] The locking devices typically have a recess on the outside of the locking element, on which a pivot lever is mounted. The pivot lever is accessible from the outside of the locking element and can be rotated manually about an actuating axis extending perpendicular to the locking element. To lock the locking element, a locking element, e.g., in the manner of a locking tongue, is arranged on the back of the recess or on the inside of the locking element and is rotationally coupled to the pivot lever. Due to this coupling, the locking element can be moved via a rotational movement of the pivot lever and thus moved back and forth between a locked and an unlocked position.
[0004] In order to rotate the pivot lever around the actuating axis to lock or unlock the locking element, it must first be folded out of the recess, as the recess or the contour of the recess would otherwise prevent the pivot lever from rotating. In the folded position, the pivot lever is at least partially positioned within the contour of the recess, preventing it from rotating around the actuating axis and, accordingly, the locking element from moving.
[0005] To prevent accidental or unauthorized unlocking, the pivot lever is held in the recess in the folded position by a retaining device. In order to rotate the pivot lever around the actuating axis, it is first necessary to release the retaining device so that the pivot lever can be unfolded and then rotated in the next step.
[0006] To release the retaining device, it is coupled to a release mechanism, such as a locking cylinder, via a coupling device. The release mechanism can be actuated or turned using a suitable key. This actuation is then mechanically transmitted via the coupling device to the retaining device, releasing the retaining device and allowing the pivoting lever to be swung out of the recess to move the locking element around the actuation axis.
[0007] While such locking devices have proven themselves in practice, they are not very flexible with regard to the release mechanisms, as not only the recess but also the coupling device must be adapted to the release mechanisms. Therefore, exchanging a release mechanism for a different type of release mechanism—for example, replacing a longer locking cylinder with a shorter one—is not possible without significant adaptation effort.
[0008] Based on this, the invention sets itself the task of providing a locking device which is characterized by increased variability.
[0009] This object is achieved in a locking device of the type described above in that the coupling device has a length compensation for adaptation to different release devices.
[0010] This length compensation allows the coupling device to be used not only with a release device of a given type, but also with a variety of release devices. In particular, both longer and shorter release devices can be used, and their different lengths can be compensated for using the length compensation. The length compensation of the coupling device can thus adapt release devices of different lengths, in particular locking cylinders, to the holding device in such a way that the holding device itself requires no adjustment. The coupling device can thus be designed as an adapter for adapting release devices of different lengths to the holding device. Overall, the variability of the locking device can thus be significantly increased.
[0011] With regard to the design of the coupling device, it has proven advantageous if it has a first coupling element and a second coupling element, wherein the two coupling elements are coupled to one another via the length compensation. The first coupling element can be arranged on the holding device side and correspondingly coupled to the holding device. The second coupling element, on the other hand, can be arranged on the release device side and correspondingly coupled to the release device. The length compensation allows the two coupling elements to be adjusted in such a way that they can be coupled to one another depending on the length of the release device, in particular at different coupling points. By coupling the two coupling elements via the length compensation, the release device can then also be coupled to the holding device via the length compensation.The coupling of the two coupling elements can be a mechanical coupling and the two coupling elements can therefore be in direct contact. The same can also apply to the coupling between the first coupling element and the holding device and / or the second coupling element and the release device. With regard to the coupling device, it has also proven advantageous if it has a coupling element which can be rotated about a release axis via the release device. This is advantageously the second coupling element. By rotating the release device about the release axis, the second coupling element can therefore also be rotated accordingly, in particular in the same direction, about the release axis. Furthermore, by rotating the release axis, the holding device can be released and the pivoting lever can then be folded out.The release device can thus be rotatable about the release axis to release the holding device.
[0012] Advantageously, the second coupling element is arranged at the end of the release device. This means that the second coupling element can be arranged behind the release device in the direction of the release axis. A screw, in particular a connecting screw extending in the direction of the release axis, can be provided for the rotational coupling of the second coupling element and the release device, which can extend through the second coupling element.
[0013] To operate the release device, it has also proven advantageous if it can be rotated about the release axis using a tool. The need for a tool can prevent unintentional or unauthorized operation of the release device and thus also release of the holding device. The tool can be a key, for example, but alternatively also a square or other profile tool. The release device can have an interface for the tool on its externally accessible side. The interface and the second coupling element can thus be located opposite one another. It has also proven advantageous if the pivoting lever is preloaded into the unfolded position, in particular by a spring.Once the pivot lever's positional locking in the recess provided by the retaining device has been released, and the retaining device has been released, the pivot lever can spring open due to the preload and thus be automatically folded out or swung out of the recess. The pivot lever can therefore spring open immediately after the release device is activated, eliminating the need to actively fold it out of the recess. For locking, when the pivot lever is folded back into the recess, it can be moved against the force of the spring, thus tensioning the spring.
[0014] Furthermore, it has proven advantageous if the compensation direction of the length compensation extends in the direction of the arming axis. The length compensation can thus be designed as a linear compensation and enable adaptation of release devices of different lengths. This is accompanied by the fact that the release device can also extend in the direction of the arming axis, and thus release devices of different lengths can have a different geometric extension in the direction of the arming axis. This can be compensated for by the length compensation. The length of the release device therefore refers to the geometric extension in the direction of the arming axis and, for example, perpendicular to the surface of the locking element.
[0015] According to an advantageous development of the invention, it is proposed that the first coupling element is arranged via the length compensation at an installation depth that is independent of the length of the release device. The first coupling element can therefore always be arranged in the same position, regardless of the length of the release device. The length of the release device is irrelevant for the holding device, since it is only coupled to the coupling element on the holding device side and therefore has no direct point of contact with the release device. Due to the independence of the holding device and the release device, the holding device can also always be arranged at the same installation depth, regardless of the length of the release device.
[0016] Furthermore, with regard to the two coupling elements, it has proven advantageous if the second coupling element extends through the first coupling element. This design allows for length compensation, and depending on the length of the release device used, the second coupling element can extend through the first coupling element to varying degrees. The two coupling elements can therefore always be coupled together at the same installation depth or in the same plane, regardless of the length of the release device.
[0017] With regard to the coupling of the two coupling elements, it has further proven advantageous if the first coupling element has a receptacle via which it is arranged on the second coupling element. During a movement or rotation, the second coupling element can thus move the first coupling element. The receptacle can be oval or elliptical, for example. The receptacle can have a free cross-section through which the second coupling element can extend. This design allows a rotational movement of the second coupling element to be converted into a linear movement of the first coupling element, as will be explained in more detail below.
[0018] With regard to the design of the second coupling element, it has proven advantageous if it has a coupling surface via which it is coupled to the first coupling element. The length compensation can be formed by the receptacle for the first coupling element and the coupling surface of the second coupling element. The coupling surface can be the outer surface of the second coupling element, on which the first coupling element or the receptacle for the first coupling element can be arranged. The first coupling element and the second coupling element can be movable relative to one another in a linear direction in the direction of the arming axis. With a corresponding movement, the receptacle can move up and down on the second coupling element or on the coupling surface.
[0019] It is advantageous in this respect if the first coupling element, in particular the receptacle, is coupled to the second coupling element, in particular the coupling surface, at different points for length compensation. The coupling point can depend on the length of the release device. For example, when using a short release device, the first coupling element can be coupled to the second coupling element in an axial end region of the coupling surface of the latter, and when using a longer release device, the first coupling element can be coupled to the latter in the opposite end region of the coupling surface of the second coupling element. The coupling points can be arranged one above the other on the second coupling element or, with regard to the release axis, one behind the other. The two coupling elements are advantageously designed in such a way that continuous length compensation and thus an unlimited number of coupling points is possible.This is achieved by allowing the first coupling element to be coupled to the second coupling element at any point. The position or installation depth of the first coupling element can remain unchanged regardless of the coupling point of the second coupling element.
[0020] With regard to the structural design of the coupling elements, it has also proven advantageous if the coupling surface has a greater extension in the direction of the arming axis than the receptacle of the first coupling element. This design makes it possible to couple the first coupling element to the second coupling element at different locations while maintaining a constant installation depth in the axial direction or in the longitudinal direction of the arming axis.
[0021] It has also proven advantageous if the axial distance of the first coupling element from the release device in the direction of the arming axis is greater when using a shorter release device than when using a longer release device. The position of the first coupling element does not change; rather, the different lengths of the release device can only change the distance in the direction of the arming axis between the release device or the end of the release device and the first coupling element.
[0022] According to an advantageous development of the invention, the first coupling element and the second coupling element can be connected to one another in the manner of a plug-in connection. This configuration allows the two coupling elements to be easily coupled to one another at different points. The first coupling element can be plugged onto the second coupling element, in particular in the direction of the release axis, or the second coupling element can be pushed through the first coupling element, in particular in the direction of the release axis. Depending on the length of the release device, the first coupling element can be plugged onto the second coupling element to different distances, or the second coupling element can be pushed through the first coupling element to different distances, so that length compensation for the use of release devices of different lengths can be achieved.
[0023] With regard to the movement of the two coupling elements, it has proven advantageous if the second coupling element and the first coupling element are coupled to one another in such a way that the first coupling element can be moved in a linear direction upon rotation of the second coupling element. The two coupling elements can be coupled to one another in such a way that a rotational movement of the second coupling element is converted into a linear movement of the first coupling element via the release device. The first coupling element can thus be rotationally decoupled from the second coupling element and cannot rotate when the second coupling element rotates, but can only be moved in a linear direction. It is advantageous if the first coupling element can be moved perpendicular to the arming axis and parallel to the top side of the recess in a linear direction at a constant installation depth. The first coupling element can be moved transversely to the arming axis.The first coupling element can thus be arranged at a constant installation depth and can then be moved in a linear direction within this depth. The rotational movement of the second coupling element can thus be converted into a linear transverse movement of the first coupling element.
[0024] To ensure linear movement of the first coupling element, it has proven advantageous if it is guided in a linear guide. The linear guide prevents the first coupling element from rotating when the second coupling element rotates. Furthermore, the linear guide ensures reliable movement and prevents the first coupling element from jamming or jamming.
[0025] Furthermore, it has proven advantageous if the trough, particularly at its rear, can be closed with a cap. The trough can be covered at least in sections using the removable cap. The cap can therefore function as a cover. The cap can cover the holding device so that it is not accessible from the rear of the trough and is therefore protected not only from tampering but also, for example, from dirt getting in. The cap can therefore ensure reliable functionality, particularly of the mechanical components of the holding device. The cap can be screwed to the trough from the underside and installed after the holding device has been assembled.
[0026] With regard to the linear guide, it has proven advantageous if this is part of the cap. The first coupling element can therefore be guided in the cap and can therefore be mounted together with the cap. Since the cap can cover the holding device, the first coupling element can be guided through the cap to the holding device and coupled there to the holding device. This guide allows the first coupling element to be movable exclusively in a linear direction. In an alternative embodiment, it is possible for the first coupling element to be guided in a linear direction in or on the recess or both in or on the recess and also in the cap.
[0027] With regard to the design of the second coupling element, it has proven advantageous if it is designed as an eccentric, in particular as an eccentric shaft. The arming axis can thus extend eccentrically through the second coupling element. Due to the eccentricity, a linear movement of the first coupling element can be initiated by a rotary movement of the second coupling element, since the cross-section of the coupling surface shifts in a linear direction during rotation. The second coupling element can have an elliptical or oval cross-section in a plane transverse to the arming axis. The second coupling element can extend in the direction of the arming axis and can therefore be designed, for example, in the manner of a shaft, in particular an eccentric shaft. The second coupling element can have a
[0028] The screw can be connected to the release device, in particular, it can be rotationally coupled to it. For this purpose, the screw can extend eccentrically through the second coupling element in the direction of the release axis. At the lower end of the second coupling element, i.e., at the end where the head of the screw is located, the second coupling element can have a radially projecting edge, which thus limits axial movement of the two coupling elements relative to one another.
[0029] Furthermore, it has proven advantageous if the outer surface of the eccentric is designed as a coupling surface. The first coupling element can thus be arranged on the outer surface of the eccentric, particularly via its receptacle.
[0030] From a design perspective, it has proven advantageous for the first coupling element to be designed as a release slide. The first coupling element or release slide can be movable in a linear direction to release or release the holding device and, upon a corresponding movement, can release the holding device. For this purpose, the first coupling element can have a pin- or bolt-shaped section that can interact with the holding device and can be molded onto the receptacle, particularly in one piece.
[0031] According to an advantageous embodiment, it has proven advantageous with regard to the holding device if it is designed in such a way that the holding device automatically holds the pivoting lever when it is folded into the recess. This design provides a close-to-lock function and it is not necessary to manually secure or lock the pivoting lever in the folded position. Rather, the pivoting lever is automatically locked in the folded position by the holding device when it is pressed or pivoted into the recess about the pivot axis. In order to fold the pivoting lever out of the recess again to unlock the locking element and to rotate it about the actuation axis, the lock must first be released. Since the holding device automatically holds the pivoting lever, it is therefore not necessary to operate the locking cylinder or the release device.Rather, it can only be used to release the holding device and thus to release the pivot lever.
[0032] From a design perspective, it has proven advantageous if the holding device has a lever that can engage the pivot lever to hold it. In the folded position, a positive connection can exist between the lever and the pivot lever, so that the lever holds the pivot lever in place and it can therefore no longer be folded out of the recess. The lever can be essentially hook-shaped, and the pivot lever can have an engagement contour into which the lever can engage to hold the pivot lever.
[0033] Furthermore, it has proven advantageous if the pivot lever can lock into the retaining device. A corresponding locking connection allows for self-locking as soon as the pivot lever is folded into the recess. This locking connection allows for very simple locking of the pivot lever in the recess without manual intervention.
[0034] Furthermore, it has proven advantageous if the lever is preloaded by a spring into the position that holds the pivot lever. This design allows for easy and automatic locking of the pivot lever when it is folded into the trough. Due to the spring's preload, the lever can automatically engage the pivot lever, thus holding and locking it.
[0035] According to an advantageous development of the invention, it is proposed that the lever can be moved into the position releasing the pivot lever via the first coupling element. The first coupling element can thus move the lever, thereby releasing the locking mechanism of the holding device and allowing the pivot lever to be folded out of the recess.
[0036] With regard to the lever's location, it has proven advantageous to position it in the recess. This allows the lever to be positioned away from the pivot lever, which has proven advantageous in terms of installation space. Furthermore, this design allows the pivot lever to be as small and lightweight as possible.
[0037] It is advantageous if the lever is rotatable about a safety axis. The lever can be moved back and forth about the safety axis between the position securing the pivot lever and the position releasing the pivot lever. The spring can move the lever about the safety axis into the securing position and the first coupling element can move the lever in the opposite direction into the releasing position. The spring and the first coupling element can therefore be opposite one another and act in different directions. Both the spring and the first coupling element can apply a torque to the lever and thus rotate it about the safety axis. The safety axis can be arranged parallel to the pivot axis around which the pivot lever can be folded in and out. Furthermore, the safety axis can be arranged perpendicular and skewed to the release axis.
[0038] Furthermore, it has proven advantageous if the lever and the pivot lever are designed in such a way that the pivot lever moves the lever counter to the force of the spring when folded into the trough. Due to the force of the spring, the lever automatically engages an engagement contour of the lever when the pivot lever is fully folded into the trough. The lever or the retaining device thus enable the pivot lever to be automatically locked when it is folded into the trough.
[0039] With regard to the release device, it has proven advantageous if it is designed as a release module. This design as a release module achieves a modular structure and allows the use of various modules of different types, especially modules of different lengths.
[0040] In this context, it has proven advantageous if the release device is arranged on the recess in an interchangeable manner. By arranging the release device on the recess, the pivot lever can be designed to be as small and light as possible, for example in contrast to arranging the release device on the pivot lever itself. Furthermore, the interchangeable arrangement ensures that one release device can be replaced by another, in particular by a longer or a shorter release device. The length compensation or the two coupling elements described above can ensure reliable compensation of the length of the release device. It is therefore easy to produce a series of locking devices that are essentially identical in design but differ in the use of different release devices or locking cylinders.
[0041] Furthermore, it has proven advantageous if the release device is arranged next to the pivoting lever on the trough. Since the holding device is coupled to the release device via the coupling device, the release device can be arranged away from the pivoting lever. The coupling device therefore also offers advantages in terms of design and enables the release device to be positioned independently of the holding device or the pivoting lever. According to an advantageous development of the invention, it is proposed that a set of different release devices be provided, wherein the release devices have different lengths. Due to the length compensation, release devices of a specific length can be selected and used from the set, for example depending on the application.
[0042] With regard to the recess, it has proven advantageous if it has a mounting opening for mounting the release device. The mounting opening can extend in the direction of the arming axis in the manner of a bore and be adapted to the release device in terms of its cross-section. An adapter can also be provided to mount different release devices in the recess. The release device can be designed as a locking cylinder or as a profile or profile half-cylinder.
[0043] According to an advantageous development of the invention, it is proposed that the recess be adapted to the release device. To use different types of release devices or different release device lengths, it may be sufficient to adapt only the recess or a mounting opening for mounting the release device to the release device. The entire mechanism, in particular the holding device as well as the pivoting lever and the locking element, do not require any further adaptation due to the length compensation. The recess can be designed as an injection-molded part, so that the injection molding tool can be adapted to the release device to produce suitable mounting openings for the release device. Furthermore, production using an injection molding process is characterized by low costs and high unit quantities.Furthermore, it has proven advantageous for the trough to have a cover, especially a pivoting one, to cover the release mechanism. This cover prevents dirt from entering the release mechanism, which, in the worst case, could lead to the release mechanism no longer being activated and thus the retaining device no longer being released. The cover can be pivotably mounted on the top of the trough.
[0044] Furthermore, it has proven advantageous if the pivot lever is rotationally coupled to a locking element. Advantageously, the pivot lever is directly rotationally coupled to the locking element, so that a rotational movement of the pivot lever about the actuating axis leads to a corresponding rotational movement of the locking element. For the rotational coupling, an actuating shaft can be provided which can extend through the recess and which is connected on one side to the pivot lever and on the other side to the locking element. The locking element can thus be rotated back and forth between a locking and an unlocking position by the pivot lever. The pivot axis, about which the pivot lever can be folded into or out of the recess, and the actuating axis can be arranged perpendicular to one another.The pivot lever can be mounted on the actuating shaft so that it can pivot around the pivot axis. The two axes intersect, preferably.
[0045] With regard to the trough, it has also proven advantageous if it has a receiving contour into which the pivot lever can be folded. In the folded and locked position, the operating lever can lie in the receiving contour and thus be positively received in the contour of the trough. Movement of the pivot lever about the actuating axis can thus be prevented. In the pivoted-in position, the pivot lever can be flush with the receiving contour so that it does not protrude beyond the trough.
[0046] According to an advantageous development of the invention, the recess has a handle contour and the pivoting lever protrudes at least partially from the handle contour so that it can be gripped behind and pivoted out of the recess. The handle contour allows one hand or one or more fingers to grasp the pivoting lever and fold it out of the recess about the pivot axis. This is particularly advantageous if the pivoting lever springs up when the release device is actuated, but even in this position it is still partially arranged in the contour of the recess and is therefore not yet rotatable. With this embodiment, the pivoting lever can then be folded out by hand about the pivot axis far enough to allow rotation about the actuation axis.
[0047] With regard to the object mentioned above, a door with a locking device is also proposed, wherein the locking device is designed as described above. This results in the advantages already described with regard to the locking device. The term "door" also includes flaps, hatches, lids, windows, etc.
[0048] Further details and advantages of the invention will be described in more detail below with reference to the exemplary embodiments shown in the schematic drawings.
[0049] Fig. 1 shows a locking device in a perspective side view; Fig. 2 shows a perspective view of the locking device according to Fig. 1 from below;
[0050] Fig. 3 is a sectional view through the locking device, using a release device of a first type;
[0051] Fig. 4 is a view of the underside of a locking device with a release device of a second type;
[0052] Fig. 5 is a sectional view through the locking device as shown in Fig. 4;
[0053] Fig. 6a, b a perspective view and a sectional view of a locking device in a locked position;
[0054] Fig. 7a, b a perspective view and a sectional view of a locking device with a released holding device;
[0055] Fig. 8a, b a perspective view and a sectional view of a locking device with a folded-out pivot lever;
[0056] Fig. 9a, b a perspective view and a sectional view of a locking device in an unlocked position.
[0057] The illustration in Fig. 1 shows a locking device 10 in a perspective side view. The locking device 10 can be arranged on a door (not shown) and lock this in the closed position, so that the door can then no longer be opened. The locking device 10 has a recess 1 that can be mounted on the door so that the upper side of the locking device 10, which can be seen in Fig. 1, is accessible from the outside of the door. The illustration in Fig. 2 shows the locking device 10 in a view from below, i.e. of the underside of the recess 1.
[0058] In order to lock the door in a closed position via the locking device 10, the device has a locking element 3 designed like a height-adjustable roller tongue, which can be moved back and forth about an actuating axis B between a locking and an unlocking position. In the locking position, the locking element 3 can engage in or behind the door frame, thus securing the door relative to the frame so that it can no longer be opened. When the locking element 3 is rotated from this locking position in the opposite direction about the actuating axis B, it is disengaged, allowing the door to be opened again.
[0059] In order to rotate the locking element 3 accordingly about the actuating axis B, it is rotationally coupled to a T-shaped pivot lever 2 via an actuating shaft extending through the door and through the recess 1. The pivot lever 2 can be rotated manually about the actuating axis B, so that the locking element 3 can be rotated back and forth between the locking position and the unlocking position with a corresponding rotational movement by the pivot lever 2.
[0060] However, according to the illustration in Fig. 1, the pivot lever 2 in the illustrated position is pivoted into a receiving contour 1.1 of the recess 1 and is positively secured therein to protect against unauthorized or unintentional movement of the pivot lever 2 against rotational movement about the actuating axis B. Rotation of the folded pivot lever 2 is thus prevented via the recess 1 and, accordingly, in this position, the locking element 3 cannot be rotated into the unlocking position.
[0061] In order to rotate the pivot lever 2 about the actuation axis B to move the locking element 3, it must first be folded out of the recess 1. For this purpose, the pivot lever 2 is mounted on the actuation shaft so that it can rotate about a pivot axis S, as can be seen, for example, in the sectional view of Fig. 3 or Fig. 5. The pivot axis S is arranged perpendicular to the actuation axis B. So that the pivot lever 2 can be folded out or swung out of the recess contour 1.1 of the recess 1, the recess 1 has a handle contour 1.2 and the pivot lever 2 has an engagement contour 2.1 in the manner of a rear grip. This design allows a person to grasp the rear handle of the pivot lever 2 with one hand and fold it out of the recess 1 about the pivot axis S. The unfolded pivot lever 2 can then be rotated by hand around the actuating axis B, which also allows the locking element 3 to be moved.
[0062] Since the folded pivot lever 2 cannot be rotated about the actuating axis B, unlocking of the locking device 10 or the door can be reliably prevented by securing the position of the folded pivot lever 2. To secure the position or to lock the pivot lever 2, a holding device 4 is provided, which can be seen in the sectional view of the illustration in Fig. 3 or Fig. 5. The holding device 4 has a lever 4.1 that can be moved back and forth about a securing axis A, which can engage with the contour of the pivot lever 2 and thus hold it in the recess 1. The lever 4.1 basically functions like a hook that automatically engages or hooks into the pivot lever 2 when it is folded into the recess 1. In order to fold the pivot lever 2 out of the recess 1, the holding device 4 must first be released, for which purpose the lever 4.1 must be swung out of the swivel lever 2 so that the positive connection between the lever 4.1 and the swivel lever 2 is canceled.
[0063] The pivot lever 2 is pre-tensioned into the unfolded position by a spring not explicitly shown in the illustrations, so that it springs up automatically after being released by the lever 4.2 and can then be rotated by hand around the actuating axis B to unlock the door.
[0064] Since the holding device 4 and thus also the lever 4.1 securing the pivot lever 2 are arranged in the recess 1, they are not accessible from the outside. However, the lever 4.1 can be moved into the position releasing the pivot lever 2 via the release device 6.1, 6.2 arranged in the recess 1 next to the pivot lever 2. The release device 6.1, 6.2 is designed as a locking cylinder that can be rotated with a suitable key about the release axis T arranged parallel to the actuation axis B. This rotation then releases the holding device 4 and the pivot lever 2 springs open.
[0065] In order that the holding device 4 can be released by rotating the release device 6.1, 6.2, the release device 6.1, 6.2 is coupled to the holding device 4 via a coupling device 5. The coupling device 5 has two coupling elements 5.1, 5.2, which can be seen in the sectional view of Fig. 3 and 5. The second coupling element 5.2 is arranged at the end of the release device 6.1, 6.2 and is rotationally coupled to it, so that when the release device 6.1, 6.2 is actuated or rotated about the arming axis T, it also rotates about this axis.
[0066] From a structural point of view, the second coupling element 5.2 is designed as an eccentric and is therefore not symmetrical to the arming axis T. This design results in the contour or cross-section of the second coupling element 5.2 shifting transversely to the arming axis T upon rotation about the arming axis T. The first coupling element 5.1 coupled to the second coupling element 5.2 has a receptacle 5.11 which is in contact with the outer surface of the second coupling element 5.2, designed as a coupling surface 5.21. Since the receptacle 5.11 has a closed annular or oval cross-section, the second coupling element 5.2 extends in the direction of the arming axis T through the receptacle 5.11 or through the first coupling element 5.1.
[0067] Due to the eccentric design of the second coupling element 5.1 and the arrangement of the first coupling element 5.1 on the coupling surface 5.21 of the second coupling element 5.2, the first coupling element 5.1 moves back and forth in a linear direction parallel to the upper side of the trough 1 when the second coupling element 5.2 rotates. The illustration in Figs. 3 and 5 shows that when the release device 6.1, 6.2 is rotated in the unlocking direction, the first coupling element 5.2 is moved in the direction of the lever 4.1 of the holding device 4. The first coupling element 5.1 is thus coupled to the holding device 4, and with a corresponding linear movement, this can rotate the lever 4.1 about the securing axis A, whereby the spring 4.2, which preloads the lever 4.1 in the opposite direction and can also be seen in the illustration in Figs. 3 and 5, is compressed. This causes the lever 4 to pivot.1 from the contour of the pivot lever 2 and releases it. In a next step, the pivot lever 2 can then be pivoted out of the recess 1 about the pivot axis S and then rotated about the actuating axis B.
[0068] If the release device 6.1, 6.2 is in the neutral position and the first coupling element 5.1 does not compress the spring 4.2, but rather tensions the lever 4.1 into the position that secures the pivot lever 2, but the pivot lever 2 is folded out of the recess 1, the pivot lever 2 can easily be folded into the recess 1 by hand. It is not necessary to use the release device 6.1,
[0069] 6.2 again. This is because the holding device 4 provides a push-to-lock function, so that the pivot lever 2 is automatically held in the recess 1 when it is folded into the contour of the recess 1. In doing so, the pivot lever 2 first comes into contact with the lever 4.1, causing it to rotate around the locking axis A against the force of the spring 4.2 and deflect. When the pivot lever 2 has reached its folded end position, the lever 4.1 engages, driven by the spring
[0070] 4.2 then automatically engages the contour of the pivot lever 2, thereby preventing the pivot lever 2 from being unfolded again. To do so, the lever 4.1 would first have to be pivoted again via the release device 6.1, 6.2, as described above.
[0071] At the rear of the trough 1, this is closed by a cap 1.6, which in particular covers the holding device 4. The cap 1.6 is screwed onto the trough 1 from behind, as can be seen from the illustration in Fig. 2. Furthermore, the cap 1.6 also has another function. This is because it has a linear guide 1.5 for the first coupling element 5.1 and thus ensures that the first coupling element 5.1 can only be moved back and forth in a linear direction. The cap 1.6 has a lateral opening through which the first coupling element 5.1 extends and which prevents any rotational movement of the first coupling element 5.1. During assembly, the holding device 4 is first mounted in the trough 1 and the first coupling element 5.1 is then inserted through the opening in the cap 1.6, which functions as a linear guide 1.5. The cap 1.6 is then6 is screwed from behind to the recess 1, whereby the first coupling element 5.1 also comes into contact with the lever 4.1. The second coupling element 5.2 is then mounted. This is inserted in the release direction T through the receptacle 5.11 of the first coupling element 5.1 and then rotationally coupled to the release device 6.1, 6.2. The receptacle 5.11 of the first coupling element 5.1 is then coupled to the coupling surface 5.21 of the second coupling element 5.1 in such a way that a rotational movement of the second coupling element 5.2 leads to a linear movement of the first coupling element 5.1.
[0072] Furthermore, the trough 1 is provided on its upper side with a pivoting cover 1.4, with which the release device 6.1, 6.2 or the keyhole of the release device 6.1, 6.2 can be closed. This cover 1.4 can, for example, prevent dirt or similar from entering the release device.
[0073] 6.1 , 6.2 or into the interface for the tool or the keyhole.
[0074] The various steps for unlocking the door or the locking device 10 will be briefly described below with reference to Figs. 6a, b to 9a, b. The illustrations in Figs. 6a, b show the locking device 10 in a locked position, ie, the locking element 3 engages in the door frame and the door is therefore immovable. To ensure access to the release device 6.1,
[0075] 6.2, so that it can be rotated about the release axis T with a suitable key, the cover 1.4 of the recess 1 has already been pivoted away. The illustration in Fig. 7a, b now shows a position in which the release device 6.1, 6.2 has been rotated to release the pivot lever 2. As can be seen, the second coupling element 5.2, due to its eccentric arrangement, has moved the first coupling element 5.1 in a linear direction and this has rotated the lever 4.2 about the safety axis A. The lever 4.2 has now been pivoted out of the pivot lever 2 and the pivot lever is therefore no longer held in the receiving contour 1.1 of the recess. Since the holding device 4 is thus released, the pivot lever 2 can now be folded out of the recess 1 about the pivot axis S so that it reaches the position shown in the illustration in Fig. 8a, b. In Fig. 8b the lever 4.1 can be seen from above.In the unfolded position, the pivot lever 2 can be rotated about the actuating axis B and the locking element 3 can be rotated about the actuating axis B in the same direction as the pivot lever 2 by rotating the pivot lever 2 for unlocking.
[0076] The configurations of the locking device 10 shown in Figs. 3 and 6a to 9b have in common that they utilize a comparatively long release device 6.1. In contrast, the example shown in Fig. 5 utilizes a shorter release device 6.2. Aside from the recess-side mounting openings 1.3 provided for receiving or mounting the release devices 6.1, 6.2, the other elements of the locking device 10 of the exemplary embodiments are identical.
[0077] The reason why only the recess 1 needs to be slightly adjusted to install release devices 6.1, 6.2 of different types, but not the entire mechanical and movable components of the locking device 10, lies in the coupling of the two coupling elements 5.1, 5.2. This is because the coupling device 5 has a length compensation 7 for adapting or compensating for the different lengths of the release devices 6.1, 6.2, via which the two coupling elements 5.1, 5.2 are coupled to one another. Only this length compensation 7 enables the use of the same mechanical components, i.e. the coupling device 5, the holding device 4 and also the pivoting lever 2, when using release devices 6.1, 6.2 of different lengths. To compensate for the length, the coupling point between the first and second coupling elements 5.1, 5.2 depends on the length of the release device 6.1, 6.2. This is because the first coupling element 5.1 is always arranged at the same installation depth via the cap 1.6, regardless of the length of the release device 6.1, 6.2, but the second coupling element extends.
[0078] 5.2, depending on the length of the release device 6.1, 6.2, to varying extents through the first coupling element 5.1 or the receptacle 5.11 of the first coupling element 5.1. The length compensation 7 is thus formed by the receptacle 5.11 of the first coupling element 5.1 and the longer coupling surface 5.21 of the second coupling element 5.1, which extends in the direction of the release axis T. Since the coupling surface 5.21 is longer than the receptacle 5.11, it is possible to move the two coupling elements 5.1, 5.2 in the axial direction relative to one another and, regardless of the coupling point of the two coupling elements 5.1, 5.2, to realize a linear movement of the first coupling element 5.1 by a rotational movement of the second coupling element 5.2.
[0079] In the axial direction or in the direction of the arming axis T, the two coupling elements 5.1, 5.2 are therefore not fixed to each other, but rather the two coupling elements 5.1, 5.2 are movable against each other in the direction of the arming axis T. During assembly, the second coupling element 5.2 can thus be inserted to different extents through the first coupling element 5.1 until it engages the release device 6.1,
[0080] 6.2 and can be connected to it. To connect the second coupling element 5.2 to the release device 6.1, 6.2, a connecting screw 5.3 extending in the direction of the release axis T is provided. This is inserted from below into the second coupling element 5.2 or pushed through the second coupling element 5.2 and then screwed into a thread arranged at the end of the release device 6.1, 6.2. As can be seen from a comparison of Fig. 3 and 5, the points at which the two coupling elements 5.1, 5.2 are connected to one another differ due to the different release device lengths. In the longer release device 6.1, which is shown in the illustration in Fig. 3, the second coupling element 5.2 is not inserted as far through the first coupling element 5.1 as in the shorter release device 6.2 shown in the illustration in Fig. 5. The possibility of connecting the two coupling elements 5.1, 5.2 thus always to be connected to one another at the same installation depth, whereby the axial position of the second coupling element 5.2 can, however, vary depending on the length of the release device 6.1, 6.2, thus enabling a compensation of the length of the release device 6.1, 6.2 and thus also the use of release devices 6.1, 6.2 of different lengths.
[0081] Since the coupling element 5.1 is independent of the length of the release device
[0082] 6.1 , 6.2 always has the same position, the components downstream of the first coupling element 5.1 are not aware of the length of the release device 6.1 , 6.2. In other words, the components downstream of the first coupling element 5.1 only see the first coupling element 5.1, but not the different release devices
[0083] 6.1 , 6.2.
[0084] The invention thus provides a locking device 10 which can be variably equipped with release devices 6.1, 6.2 of different lengths, whereby an adaptation, in particular of the mechanical components, is possible even when using release devices of different lengths
[0085] 6.1 , 6.2 is not required. Reference symbols:
[0086] 1 trough
[0087] 1.1 Recording contour
[0088] 1.2 Handle contour
[0089] 1.3 Mounting opening
[0090] 1 .4 Cover
[0091] 1.5 Linear guide
[0092] 1.6 Cap
[0093] 2 swivel levers
[0094] 2.1 Engagement contour
[0095] 3 locking element
[0096] 4 Holding device
[0097] 4.1 Lever
[0098] 4.2 Spring
[0099] 5 Coupling device
[0100] 5.1 first coupling element
[0101] 5.11 Recording
[0102] 5.2 second coupling element
[0103] 5.21 Coupling area
[0104] 5.3 Connecting screw
[0105] 6.1 Release device
[0106] 6.2 Release device
[0107] 7 Length compensation
[0108] 10 Locking device
[0109] A securing axis
[0110] T release axis
[0111] B Actuating axis
[0112] S swivel axis
Claims
Patent claims:
1. Locking device for locking a locking element, in particular a door, with a recess (1), a pivoting lever (2) which is hingedly mounted on the recess (1), which can be rotated back and forth about an actuating axis (B) in an extended position and which is held in the recess (1) by a holding device (4) in a folded-in position, and with a release device (6.1, 6.2), in particular a locking cylinder, which is coupled to the holding device (4) via a coupling device (5) in such a way that the holding device (4) can be released via the release device (6.1, 6.2), characterized in that the coupling device (5) has a length compensation (7) for adaptation to different release devices (6.1, 6.2).
2. Locking device according to claim 1, characterized in that the coupling device (5) has a first coupling element (5.1) and a second coupling element (5.2), wherein the two coupling elements (5.1, 5.2) are coupled to one another via the length compensation (7).
3. Locking device according to claim 2, characterized in that the second coupling element (5.2) is rotatable about a release axis (T) via the release device (6.1, 6.2), wherein the second coupling element (5.2) and the first coupling element (5.1) are coupled to one another in such a way that the first coupling element (5.1) is moved in a linear direction upon rotation of the second coupling element (5.2).
4. Locking device according to one of the preceding claims, characterized in that the compensation direction of the length compensation (7) extends in the direction of the release axis (T).
5. Locking device according to one of claims 2 to 4, characterized in that the first coupling element (5.1) is arranged via the length compensation (7) in an installation depth independent of the length of the release device (6.1, 6.2).
6. Locking device according to one of claims 2 to 5, characterized in that the second coupling element (5.2) extends through the first coupling element (5.1).
7. Locking device according to one of claims 2 to 6, characterized in that the first coupling element (5.1) can be coupled to the second coupling element (5.2) at different points for length compensation.
8. Locking device according to one of claims 2 to 7, characterized in that the second coupling element (5.2) has a coupling surface (5.21) via which it is coupled to the first coupling element (5.1), wherein the length compensation (7) is formed by the receptacle (5.11) of the first coupling element (5.1) and the coupling surface (5.21) of the second coupling element (5.2).
9. Locking device according to claim 8, characterized in that the coupling surface (5.21) has a greater extent in the direction of the release axis (T) than the receptacle (5.11) of the first coupling element (5.1).
10. Locking device according to one of claims 2 to 9, characterized in that the first coupling element (5.1) is guided in a linear guide (1.5), wherein the linear guide (1.5) is part of a cap (1.6) closing the recess (1).
11. Locking device according to one of claims 2 to 10, characterized in that the second coupling element (5.2) is designed as an eccentric, in particular as an eccentric shaft, and the first coupling element (5.1) is designed as a release slide.
12. Locking device according to one of the preceding claims, characterized in that the holding device (4) is designed such that it automatically holds the pivoting lever (2) when it is folded into the trough (1).
13. Locking device according to one of claims 2 to 12, characterized in that the holding device (4) has a lever (4.1) which can engage in the pivoting lever (2) to hold it, wherein the lever (4.1) is pretensioned by a spring (4.2) into the position holding the pivoting lever (2) and wherein the lever (4.1) can be transferred via the first coupling element (5.1) into the position releasing the pivoting lever (2).
14. Locking device according to one of the preceding claims, characterized in that the release device (6.1, 6.2) is arranged interchangeably on the trough (1).
15. Door with a locking device (10) according to one of the preceding claims.