Actuating device, lock cylinder, locking system and method

Abstract

The present invention relates to an actuating device (14) for actuating a locking cylinder (12), wherein the actuating device (14) comprises an actuating element (16) and a drive shaft (18), wherein the actuating element (16) comprises an actuating element (24) rotatable about an actuating axis (30), wherein the drive shaft (18) rotatable about a drive shaft axis (32), wherein a first end (36) of the drive shaft (18) is coupled to the actuating element (24) via a first joint (40), and wherein the first joint (40) is designed as a pivot joint. The present invention further relates to a locking cylinder (12). The present invention further relates to a locking system (10) comprising a locking cylinder (12) and an actuating device (14) for the locking cylinder (12). The present invention further relates to a method (100) for mounting a locking system (10) on a door.

Description

[0001] The present invention relates to an actuating device for actuating a locking cylinder. Furthermore, the present invention relates to a locking cylinder. Furthermore, the present invention relates to a locking system comprising a locking cylinder and an actuating device for actuating the locking cylinder. Furthermore, the present invention relates to a method for mounting a locking system on a door.

[0002] Such locking systems with a locking cylinder and an actuating device for actuating the locking cylinder are generally known in the prior art.

[0003] For example, WO 2014 182509 A1 discloses a cylinder lock comprising a cylinder lock body with a cam and an actuator, and a manual element for actuating the cam. A clutch is contained within the cylinder lock body and is selectively engaged with the cam and either the actuator or the manual element. The cylinder lock further comprises a coupler contained within the cylinder lock body. Appropriate movement of the coupler engages the manual element with the clutch.

[0004] Furthermore, EP 0 722 028 A1 discloses a lockable vehicle locking assembly comprising a locking unit mounted in or on a vehicle door and a separate key-operated lock unit. The two units are connected for locking and unlocking by coupling means comprising at least one cardan joint or other universal joint, etc., for positively transmitting the drive between non-aligned components of the two units. Conveniently, there are two such joints, one at each end of an intermediate shaft.

[0005] The document JP 2010 190030 A also shows a cylinder lock comprising a plug rotatably inserted into a cylinder housing; a connecting rod to be connected to the rear end of the plug via a universal joint; and a flexible tubular body which is capable of maintaining positions in a bellows part formed in an intermediate part during and after the bending process, and in which one end is attached externally to the connecting rod and the other end to the input shaft of the universal joint or to the cylinder housing.

[0006] Furthermore, the document DE 102011 052811 A1 discloses a cylinder lock with a mortise housing supporting a locking member and a rotary knob, with a coupling having two coupling elements which can be moved by moving a first push button from a normal position, in which the coupling elements are separated from one another, into a rotary drive position in which the coupling elements are engaged with one another, so that the locking member can be turned by the rotary knob. To further increase unlocking security, a second push button is proposed which is gear-connected to the first push button in such a way that the rotary drive position can only be reached after both push buttons have been moved. A further development of the invention relates to a cylinder lock with only one push button, which lies in a recess.

[0007] Furthermore, document CN 206545433 U discloses a device for operating an electronic lock. The device comprises a rotatable knob coupled to an electronic lock via a universal joint. The universal joint has a universal joint on both the knob and lock sides. The universal joint also has a telescopic mechanism that allows the length of the universal joint to be adjusted.

[0008] Against this backdrop, however, there is still room for improvement. In particular, there is a need to reduce the manufacturing and assembly costs of the locking system. Furthermore, there is a need to design the locking system so that it can be used for a wide variety of different doors and fittings. Furthermore, there is a need to make the structure as simple and stable as possible.

[0009] It is therefore an object of the present invention to provide an improved actuating device, an improved locking cylinder, an improved locking system and an improved method for assembling the locking system which reduces the manufacturing and assembly costs of the locking system.

[0010] Furthermore, it is an object of the present invention to provide an improved actuating device, an improved locking cylinder, an improved locking system and an improved method for assembling the locking system which can be used for a variety of different doors and fittings.

[0011] Furthermore, it is an object of the present invention to provide an improved actuating device, an improved locking cylinder, an improved locking system and an improved method for assembling the locking system, which has a simple and stable construction.

[0012] According to a first aspect of the invention, an actuating device for actuating a locking cylinder is provided, wherein the actuating device has an actuating device and a propeller shaft, wherein the actuating device has an actuating element which is rotatable about an actuating axis, wherein the propeller shaft is rotatable about a propeller shaft axis, wherein a first end of the propeller shaft is coupled to the actuating element via a first joint, characterized in that the first joint is designed as a pedestal joint.

[0013] According to a second aspect of the invention, a locking cylinder is provided with a rotary element and a cam, wherein the rotary element and the cam are rotatable about a locking cylinder axis, wherein the rotary element is coupled to the cam in a direction of rotation about the locking cylinder axis, wherein the rotary element has a second receptacle for a second end of a cardan shaft of an actuating device for coupling to an actuating device, wherein the second receptacle is formed as part of a pedestal joint.

[0014] According to a third aspect of the invention, a locking system is provided with a locking cylinder and an actuating device for the locking cylinder, wherein the actuating device has an actuating device and a cardan shaft, wherein the actuating device has an actuating element that is rotatable about an actuating axis, wherein the cardan shaft is rotatable about a cardan shaft axis, wherein a first end of the cardan shaft can be coupled to the actuating element via a first joint, wherein the locking cylinder has a rotary element and a cam, wherein the rotary element and the cam are rotatable about a locking cylinder axis, wherein the rotary element is coupled to the cam in a direction of rotation about the locking cylinder axis, wherein the rotary element can be coupled to a second end of the cardan shaft of an actuating device via a second joint, wherein the first joint and the second joint are each designed as a pedestal joint.

[0015] According to a fourth aspect of the invention, a method for mounting a locking system on a door is provided, wherein the locking system comprises a locking cylinder and an actuating device with an actuating device and a propeller shaft, wherein the actuating device comprises an actuating element that is rotatable about an actuating axis, wherein the propeller shaft is rotatable about a propeller shaft axis, wherein a first end of the propeller shaft is coupleable to the actuating element via a first joint, wherein the locking cylinder comprises a rotary element and a cam, wherein the rotary element and the cam are rotatable about a locking cylinder axis, wherein the rotary element is coupled to the cam in a direction of rotation about the locking cylinder axis, wherein the rotary element is coupleable to a second end of the propeller shaft of an actuating device via a second joint,wherein the first joint and the second joint are each designed as a pod joint, the method comprising the following steps: , Inserting the locking cylinder into a designated recess in the door; inserting the second end of the universal joint shaft into the second receptacle of the locking cylinder's rotating element to couple the universal joint shaft to the rotating element; positioning the actuating device on an outer surface of the door; attaching the actuating device to the door.

[0016] The actuating device is a device designed to actuate a locking cylinder. For this purpose, the actuating device comprises the actuating device with the actuating element and the drive shaft. The actuating element is rotatably mounted in the actuating device about the actuating axis. For this purpose, the actuating device can, for example, comprise a housing in which the actuating element is arranged and rotatably mounted. The actuating element is preferably disc-shaped or cylindrical.

[0017] The actuating device is configured to actuate the actuating device. The actuation can be performed manually or automatically. For example, the actuating device for manual actuation can have a knob that is rotatably mounted on the actuating device and can be manually rotated by a user. The knob can be coupled to the actuating element such that rotation of the knob causes the actuating element to rotate about the actuating axis. Alternatively or additionally, the actuating device for automatic actuation can have a drive device by means of which the actuating element can be driven in a rotational direction about the actuating axis.

[0018] The locking cylinder has the rotating element and the cam. The cam can also be referred to as a locking cam or driver. The lock of a door can be operated by means of the cam. In particular, the cam can operate the bolt and / or the latch of the lock. The rotating element is preferably cylindrical. In particular, the rotating element is a locking cylinder core or part of a locking cylinder core of the locking cylinder. The rotating element is rotatable about the locking cylinder axis. The cam is also rotatable about the locking cylinder axis. The rotating element and the cam are coupled to one another in such a way that they can be rotated together about the locking cylinder axis. The rotating element and the cam can be rotatably mounted in the locking cylinder. For example, the locking cylinder can have a locking cylinder housing, wherein the rotating element and the cam are arranged and rotatably mounted in the locking cylinder housing.

[0019] The second receptacle can be arranged on the side of the rotating element facing the universal joint shaft. To couple the second end of the universal joint shaft to the rotating element, the second end of the universal joint shaft is arranged in the second receptacle. The second receptacle and the second end of the universal joint shaft form the second joint. In the coupled state, the second end of the universal joint shaft is arranged in the second receptacle. The second receptacle easily accommodates and holds the second end of the universal joint shaft in the rotating element.

[0020] As previously described, the second joint is configured to correspond to the first joint in order to couple the cardan shaft to the rotary element. In particular, the second joint is configured to couple a rotary movement of the rotary element about the lock cylinder axis and a rotary movement of the cardan shaft about the cardan shaft axis. The cardan shaft is thus coupled to the actuating element and the lock cylinder via the first and second joints, so that a rotary movement of the actuating element about the actuating axis can be transmitted to a rotary movement of the rotary element about the lock cylinder axis.

[0021] A cardan shaft is a shaft that has a joint on at least one side. A joint is generally a connection between two rigid bodies that can move in a predetermined manner. In a cardan shaft, the joints are designed as rotary joints. The rotary joints of a cardan shaft have two degrees of rotational freedom, allowing two rigid bodies connected by the rotary joint to pivot or tilt freely relative to each other, but with a rotation about the respective longitudinal axes of the bodies coupled.

[0022] The cardan shaft is rotatable about the cardan shaft axis. The cardan shaft extends in the direction of the cardan shaft axis from the first end to the second end. The first end can also be referred to as the knob-side end. The second end can also be referred to as the lock-side end. The cardan shaft axis is thus arranged parallel to a direction from the first end of the cardan shaft to the second end of the cardan shaft. The actuating device is coupled to the locking cylinder by means of the cardan shaft and thus enables the actuation of the locking cylinder. For this purpose, the first joint is arranged at the first end and the second joint is arranged at the second end. The receiving element and the cardan shaft can together form a knob shaft.

[0023] The first joint can be used to couple the propeller shaft to the actuating element. When the actuating element is rotated about the actuating axis for actuation, the propeller shaft is also rotated about the propeller shaft axis via the first joint. In other words, the first joint is designed such that a rotational movement of the actuating element about the actuating axis and a rotational movement of the propeller shaft about the propeller shaft axis are coupled. The first joint therefore transmits a rotational movement between the actuating axis and the propeller shaft axis.

[0024] The second joint connects the propeller shaft to the rotating element. When the propeller shaft is rotated about the propeller shaft axis, the rotating element is also rotated about the lock cylinder axis via the second joint. In other words, the second joint is designed such that a rotational movement of the rotating element about the lock cylinder axis and a rotational movement of the propeller shaft about the propeller shaft axis are coupled. The second joint thus transmits a rotational movement between the propeller shaft axis and the lock cylinder axis.

[0025] The drive shaft can thus be coupled to the actuating device and the locking cylinder via the first joint and the second joint in such a way that the rotational movement of the actuating element about the actuating axis and the rotational movement of the rotating element about the locking cylinder axis are coupled to one another. When the actuating element is rotated about the actuating axis for actuation, the rotating element also rotates about the locking cylinder axis.

[0026] The locking system includes the actuating device with actuator and drive shaft, and the locking cylinder. The locking system can be mounted on a door.

[0027] For installation, the locking cylinder is first inserted into a designated recess in the door. Specifically, the locking cylinder is inserted into a door lock and secured to it. The recess into which the locking cylinder is inserted is located in the door lock.

[0028] Next, the second end of the propeller shaft is coupled to the rotating element. To do this, the actuating device is first positioned next to the door recess so that the propeller shaft is aligned with the recess, in particular such that the propeller shaft axis and the lock cylinder axis are substantially aligned. The actuating device is then moved toward the door to couple the propeller shaft to the rotating element.

[0029] The actuating device is then positioned on the outer surface of the door. The actuating device can have attachment points, and the door can have corresponding attachment points. The actuating device can be positioned on the outer surface of the door such that the attachment points of the actuating device are aligned with the corresponding attachment points on the door. The attachment points can also be referred to as fastening points. The drive shaft adjusts accordingly depending on the position of the actuating device on the outer surface of the door. In particular, the actuating axis and the locking cylinder axis no longer have to be aligned with one another, but can also be offset and / or rotated relative to one another. The offset or tilt depends on the positioning of the actuating device on the outer surface of the door relative to the arrangement of the locking cylinder's rotating element in the door.The drive shaft runs between the actuating element and the rotating element, with the drive shaft axis being inclined relative to the actuating axis and the locking cylinder axis if the actuating axis and the locking cylinder axis are not aligned. If the actuating axis and the locking cylinder axis are only offset, they are arranged parallel to each other.

[0030] Finally, the actuating device is attached to the door. Fasteners such as screws can be used for this purpose. In particular, these fasteners can be used to connect the attachment points of the actuating device and the door. Attaching the actuating device can also be referred to as fastening or mounting.

[0031] The universal joint shaft can be used to compensate for misalignments of the actuating axis and the locking cylinder axis, as well as for distance differences between these axes. The universal joint shaft thus allows the actuating device to be flexibly mounted on the outside of a door in the vicinity of the recess. In particular, the actuating device can also be mounted so that the actuating axis and the locking cylinder axis are not aligned.

[0032] This allows the actuating device to be used for a variety of different doors and fittings, which in particular have different attachment points for the actuating device.

[0033] Furthermore, for assembly, the cardan shaft must be coupled to the rotating element, after which the actuating device simply needs to be positioned and attached to the outer surface. This simplifies assembly. Furthermore, the components of the locking system, particularly the cardan shaft, the actuating element, and the rotating element, have a simple design. The simple assembly and design of the locking system can reduce manufacturing and assembly costs.

[0034] The first joint and the second joint can be designed as pod joints, preferably as dipod joints, tripod joints, or quattropod joints. Pod joints are constant velocity joints which, unlike universal joints, transmit rotational movement uniformly. This means that the angular velocities of the input and output sides do not differ from one another. This prevents irregularities in the drive train and additional loads on the surrounding components. It also enables quieter and less-vibrational operation. Furthermore, pod joints enable good torque transmission. This allows for low-stress and low-vibration operation, particularly with high torque transmission, which leads to greater stability and durability of the components. In particular, the first and second joints are each designed as quattropod joints.

[0035] The task posed at the beginning is thus completely solved.

[0036] In a first embodiment, the actuating element has a first receptacle for the first end of the propeller shaft, wherein the first receptacle and the first end of the propeller shaft form the first joint.

[0037] The first receptacle can be arranged on the side of the actuating element facing the propeller shaft. To couple the first end of the propeller shaft to the actuating element, the first end of the propeller shaft is arranged in the first receptacle. The first receptacle and the first end of the propeller shaft form the first joint. In the coupled state, the first end of the propeller shaft is arranged in the first receptacle. By means of the first receptacle, the first end of the propeller shaft is easily received and held in the actuating element.

[0038] In a further embodiment, the first receptacle has at least two first recesses which extend radially outward from the actuation axis, wherein the propeller shaft has at least two first projections at the first end which extend radially outward from the propeller shaft axis, wherein the first projections can be brought into engagement with the first recesses.

[0039] The projections can also be referred to as lugs or driving lugs. The number of first recesses is preferably equal to the number of first projections. In particular, the first receptacle has three or four first recesses and the first end of the cardan shaft has three or four first projections. The first projections and first recesses can be distributed at equal intervals over the circumference of the cardan shaft and the actuating element, i.e. around the cardan shaft axis or the actuating axis, in particular over 180° for two, 120° for three, and 90° for four first projections and first recesses. Preferably, a width of each first projection in the circumferential direction around the cardan shaft axis is less than or equal to the width of each first recess in the circumferential direction around the actuating axis.Preferably, a height of each first projection in a radial direction from the cardan shaft axis is less than or equal to the radial extension of each first recess in a radial direction from the actuation axis. In the coupled state, the first projections are arranged in engagement with the corresponding first recesses. The first projections are arranged such that a torque can be transmitted. The rotational movement of the cardan shaft about the cardan shaft axis and the rotational movement of the actuation element about the actuation axis are coupled to one another via the first projections and recesses. The first projections and the first recesses are further designed such that the cardan shaft and the actuation element can be pivoted or tilted relative to one another about two axes. The first joint is thus simply designed as a pedestal joint via the first projections and first recesses.

[0040] In a further embodiment, a surface of the first projections is convexly curved, in particular rounded.

[0041] In this way, material stresses caused by the torque transfer from the projections to the recesses, as well as by the tilting or rotating movements of the projections in the recesses, can be reduced and better distributed. This results in less wear on the actuator device, which extends its service life.

[0042] In a further embodiment, the actuating device further comprises a spring element, wherein the spring element is arranged between the cardan shaft and the actuating element in the first receptacle.

[0043] The spring element can be preloaded in a direction parallel to the actuation axis. The spring element can be used to push the drive shaft toward the locking cylinder. This ensures that the drive shaft remains coupled to the rotating element during operation. Furthermore, the spring element cushions the drive shaft in a direction parallel to the actuation axis, thereby reducing vibrations that occur during operation.

[0044] In a further embodiment, the actuating device has a holding element which holds the first end of the cardan shaft in the first receptacle.

[0045] This ensures that the cardan shaft and the actuating element are kept in the coupled state and cannot be decoupled during operation, for example by the preload force of the spring element.

[0046] In a further embodiment, a depth of the first receptacle in a direction parallel to the actuation axis is greater than an extension of the first projections in a direction parallel to the cardan shaft axis.

[0047] When the actuating device is attached to a door and coupled to the locking cylinder, the distance between the actuating element and the rotating element can vary depending on the design of the door. In order to be able to adapt the actuating device to different distances from the rotating element, the first receptacle, in particular each first recess, has a depth that is greater than a length of the first projections arranged in the first recess. As a result, the first end of the cardan shaft can be inserted into the first receptacle to different depths depending on the distance from the rotating element. In particular, the first end of the cardan shaft can be pressed into the first receptacle against the pretensioning force of the spring element to set the required distance.

[0048] In a further embodiment, the locking cylinder has a rotary element which is rotatable about a locking cylinder axis, wherein a second end of the articulated shaft can be coupled to the rotary element of the locking cylinder via a second joint, and in particular wherein the second joint is designed as a pedestal joint.

[0049] As previously described, the second joint is configured to correspond to the first joint in order to couple the cardan shaft to the rotary element. In particular, the second joint is configured to couple a rotary movement of the rotary element about the lock cylinder axis and a rotary movement of the cardan shaft about the cardan shaft axis. The cardan shaft is thus coupled to the actuating element and the lock cylinder via the first and second joints, so that a rotary movement of the actuating element about the actuating axis can be transmitted to a rotary movement of the rotary element about the lock cylinder axis.

[0050] In a further embodiment, the rotary element has a second receptacle for the second end of the propeller shaft. In a further embodiment, the second receptacle has at least two second recesses extending radially outward from the actuation axis, wherein the propeller shaft has at least two second projections at the second end extending radially outward from the propeller shaft axis, wherein the second projections can be engaged with the second recesses.

[0051] The projections can also be referred to as lugs or driving lugs. The number of second recesses is preferably equal to the number of second projections. In particular, the second receptacle has three or four second recesses and the second end of the cardan shaft has three or four second projections. The second projections and second recesses can be distributed at equal intervals over the circumference of the cardan shaft and the rotating element, i.e. around the cardan shaft axis or the lock cylinder axis, in particular over 180° for two, 120° for three, and 90° for four second projections and second recesses. Preferably, a width of each second projection in the circumferential direction around the cardan shaft axis is less than or equal to the width of each second recess in the circumferential direction around the lock cylinder axis.Preferably, a height of each second projection in a radial direction from the cardan shaft axis is less than or equal to the radial extension of each second recess in a radial direction from the lock cylinder axis. In the coupled state, the second projections are arranged in engagement with the corresponding second recesses. The second projections are arranged such that a torque can be transmitted. The rotational movement of the cardan shaft about the cardan shaft axis and the rotational movement of the rotary element about the lock cylinder axis are coupled to one another via the second projections and recesses. The second projections and the second recesses are further designed such that the cardan shaft and the rotary element can be pivoted or tilted relative to one another about two axes. The second joint is thus simply designed as a pedestal joint via the second projections and second recesses.In a further embodiment, the second receptacle has at least two second recesses which extend radially outwards from the locking cylinder axis, wherein at least two second projections of the cardan shaft of an actuating device arranged at the second end can be brought into engagement with the second recesses.

[0052] As already described above, the second joint is simply formed as a pod joint via the second projections and second recesses.

[0053] In a further embodiment, the propeller shaft has at least two second projections at the second end, which extend radially outward from the propeller shaft axis, wherein the second projections can be brought into engagement with at least two second recesses of a second receptacle of the rotary element.

[0054] As already described above, the second joint is simply formed as a pod joint via the second projections and second recesses.

[0055] In a further embodiment, a surface of the second projections is convexly curved, in particular cone-shaped or rounded.

[0056] In this way, material stresses caused by the torque transfer from the projections to the recesses, as well as by the tilting or rotating movements of the projections in the recesses, can be reduced and better distributed. This results in less wear on the actuating device, which extends its service life.

[0057] In a further embodiment, each of the first projections and / or the second projections has two side surfaces which are arranged in the circumferential direction around the propeller shaft axis on opposite sides of the respective projection, wherein the two side surfaces are convexly curved.

[0058] The side surfaces of the projections are preferably mirror-symmetrical, with the radii of curvature of the two side surfaces being the same. In particular, the radii of curvature of the two side surfaces can each be greater than or equal to half the width of each projection. To transmit a rotary movement between the actuating element and the cardan shaft, an upstream side of each first recess in the direction of rotation presses against the corresponding upstream side surface of the respective first projection. Correspondingly, to transmit a rotary movement between the cardan shaft and the rotary element, a downstream side surface of each second projection presses against a downstream side of the respective second recess. The convex design of the side surfaces thus reduces material loads that occur when the torque is transmitted from the projections to the recesses, as well as due to tilting orRotational movements of the projections in the recesses are reduced. As previously described, this results in less wear on the actuating device, which extends its service life.

[0059] In a further embodiment, in the coupling step, the second end of the cardan shaft is inserted into the second receptacle of the rotary element.

[0060] The second projections are brought into engagement with the second recesses, thereby coupling the drive shaft to the rotating element. In other words, coupling the drive shaft to the rotating element is achieved simply by inserting the drive shaft into the second receptacle of the rotating element. This facilitates the assembly of the locking system.

[0061] In a further embodiment, in the positioning step, the actuating device is placed on the outer surface of the door over the recess of the door and is displaced along the outer surface, in particular until attachment points of the actuating device are aligned with corresponding attachment points of the door.

[0062] After inserting the second end of the drive shaft into the second receptacle, the drive shaft and the rotating element are coupled to one another, as previously described. Since the second end of the drive shaft is guided through the recess in the door to insert the second end, the actuating device is arranged next to this recess. In order to position the actuating device appropriately on the outer surface of the door, the actuating device is now placed on the outer surface of the door and moved along the outer surface of the door. In this way, the actuating device can be easily placed on the outer surface of the door at a desired location in order to subsequently attach it at this location. When moving the actuating device along the outer surface of the door, the drive shaft is tilted or pivoted accordingly to compensate for the resulting offset or twisting between the actuating axis and the locking cylinder axis.

[0063] In particular, when the actuating device is placed on the outer surface of the door, the first end of the propeller shaft can be pressed into the first receptacle against the preload force of the spring element, thereby easily adjusting the length of the propeller shaft to a distance between the actuating element and the rotating element. When the actuating device is displaced along the outer surface of the door, the distance between the rotating element and the actuating element, in particular the distance between the first and second receptacles, can change, causing the first end of the propeller shaft to be displaced accordingly in the first receptacle.

[0064] Embodiments of the invention are illustrated in the drawings and explained in more detail in the following description. They show: Fig. 1 an isometric view of an embodiment of a locking system; Fig. 2 a detailed view of the locking system from Fig. 1; Fig. 3 an exploded view of components of the locking system from Fig. 1 ; Fig. 4 an isometric view of the locking system Fig. 1 with inclined drive shaft; Fig. 5 a detailed view of the locking system from Fig. 1 with inclined drive shaft; Fig. 6 a top view of an actuating element of the locking system from Fig. 1 along an actuation axis; Fig. 7 a plan view of a cardan shaft of the locking system from Fig. 1 along a cardan shaft axis; Fig. 8 a top view of a locking cylinder of the locking system Fig. 1 along a locking cylinder axis; Fig. 9 a side view of the cardan shaft of the locking system from Fig. 1 ; Fig. 10 a sectional view of the cardan shaft from Fig. 9 along the line XX; Fig. 11 a detailed view of section XI of the cardan shaft from Fig. 9 ; and Fig. 12 a schematic view of an embodiment of a method for assembling a locking system.

[0065] The Figures 1 to 5 show the structure of a locking system 10 in different views. In the Figures 6 to 11 Individual components of the locking system 10 are shown in detail. The locking system 10 can be installed in a door. In particular, the locking system 10 can be used to operate a lock on the door. The lock can be a mortise lock.

[0066] The locking system 10 comprises a locking cylinder 12 and an actuating device 14 for actuating the locking cylinder 12. The locking cylinder 12 can be inserted into the door lock. The actuating device 14 can be arranged, in particular attached or mounted, on an outer surface of the door. The actuating device 14 can be coupled to the locking cylinder 12 to actuate the latter.

[0067] The actuating device 14 has an actuating device 16 and a drive shaft 18. The actuating device 16 can be coupled to the locking cylinder 12 by means of the drive shaft 18. The drive shaft 18 is arranged between the actuating device 16 and the locking cylinder 12. The drive shaft 18 has a first end 36 facing the actuating device 16. The drive shaft 18 has a second end 38 facing the locking cylinder. The drive shaft 18 is rotatable about a drive shaft axis 32. The drive shaft axis 32 extends from the first end 36 to the second end 38. The drive shaft 18 is substantially cylindrical with respect to the drive shaft axis 32.

[0068] The actuating device 16 has an actuating element 24. The actuating element 24 is rotatable about an actuating axis 30. The actuating axis 30 extends from a side of the actuating device 16 facing the universal joint shaft 18 to a side of the actuating device 16 facing away from the universal joint shaft 18. The actuating element 24 is arranged on the side of the actuating device 16 facing the universal joint shaft 18. The actuating element 24 is coupled to the first end 36 of the universal joint shaft 18 via a first joint 40. The first joint 40 is designed as a pedestal joint. The first joint 40 is designed such that a rotational movement of the actuating element 24 about the actuating axis 30 and a rotational movement of the universal joint shaft 18 about the universal joint shaft axis 32 are coupled to one another.

[0069] The actuating device 16 further comprises a manual actuating element 20. The actuating element 20 is designed to rotate the actuating element 24 about the actuating axis 30 upon manual actuation. The actuating element 20 can, for example, be a rotary knob coupled to the actuating element 24 such that a rotary movement of the rotary knob about its mounting axis can be transferred to a rotary movement of the actuating element 24 about the actuating axis 30.

[0070] The actuating device 16 further comprises a drive device 22. The drive device 22 is configured to rotate the actuating element 24 about the actuating axis 30. The drive device 22 may, for example, comprise an electric motor coupled to the actuating element 24 such that it rotates the actuating element 24 about the actuating axis 30.

[0071] The actuating device can have an actuating device housing. The actuating element 24 and the drive device 22 can be arranged in the actuating device housing. The actuating element 24 can be rotatably mounted in the actuating device housing about the actuating axis 30. The actuating element 20 can be arranged on the actuating device housing and also be rotatably mounted.

[0072] The locking cylinder 12 has a locking cylinder housing 25. A rotating element 26 and a cam 28 are arranged in the locking cylinder housing 25. The cam 28 is designed to actuate a bolt and / or a latch of the door lock when the locking cylinder 12 is mounted in the lock. The rotating element 26 and the cam 28 are rotatably mounted in the locking cylinder housing 25 about a locking cylinder axis 34. The rotating element 26 is cylindrical with respect to the locking cylinder axis 34. The locking cylinder axis 34 extends from a side of the locking cylinder 12 facing the drive shaft 18 to a side of the locking cylinder 12 facing away from the drive shaft 18. The rotating element 26 is arranged on the side of the locking cylinder 12 facing the drive shaft 18. The rotating element 26 can be coupled to the second end 38 of the drive shaft 18 via a second joint 42. The second joint 42 is designed as a pod joint.The second joint 42 is designed such that, in the coupled state, a rotational movement of the rotary element 26 about the locking cylinder axis 34 and a rotational movement of the propeller shaft 18 about the propeller shaft axis 32 are coupled to one another.

[0073] In the Figures 1 , 2 , 4 and 5 the propeller shaft 18 is coupled to the actuating element 24 and the rotating element 26 via the first and second joints 40, 42. In the Figures 1 and 2 The actuating device 14 and the locking cylinder 12 are arranged such that the actuating axis 30, the drive shaft axis 32 and the locking cylinder axis 34 are aligned with each other. In other words, the actuating axis 30, the drive shaft axis 32 and the locking cylinder axis 34 are arranged concentrically. Figures 4 and 5The actuating device 14 and the locking cylinder 12 are arranged such that the actuating axis 30, the drive shaft axis 32, and the locking cylinder axis 34 are not aligned with each other. In other words, the actuating axis 30, the drive shaft axis 32, and the locking cylinder axis 34 are arranged eccentrically.

[0074] The propeller shaft 18 has four first projections 48 at the first end 36. The four first projections 48 are identically formed. In particular, the first projections 48 have the same shape and size. The first projections 48 extend radially outward from the propeller shaft 18 toward the propeller shaft axis 32. The four first projections 48 are arranged circumferentially around the propeller shaft axis 32 at equal intervals of 90° from one another. In other words, the first end 36 is cross-shaped by means of the first projections 48. This is shown, for example, in Fig. 7which is a plan view of the first end 36 of the cardan shaft 18.

[0075] The propeller shaft 18 has four second projections 50 at the second end 38. The four second projections 50 are identically formed. In particular, the second projections 50 have the same shape and size. The second projections 50 extend radially outward from the propeller shaft 18 toward the propeller shaft axis 32. The four second projections 50 are arranged circumferentially around the propeller shaft axis 32 at equal intervals of 90° from one another. In other words, the second end 38 is cross-shaped by means of the second projections 50. The second projections 50 are identically formed to the first projections 48. In particular, the second projections 50 have the same shape and size as the first projections 48.

[0076] The outer diameter of the propeller shaft 18 is constant between the first end 36 and the second end 38 of the propeller shaft. Due to the first projections 48 at the first end 36 and the second projections 50 at the second end 38, the outer diameter of the propeller shaft is larger at the two ends 36, 38 than between the two ends. Since the first projections 36 and the second projections are identical, the outer diameter at the first end 36 corresponds to the outer diameter at the second end 38 of the propeller shaft 18.

[0077] The actuating element 24 has a first receptacle 44 for the first end 36 of the propeller shaft 18. The first receptacle 44 is arranged on a side of the actuating element 24 facing the propeller shaft 18. In Fig. 6A top view of this side is shown. A depth of the first receptacle 44 in an axial direction of the actuation axis 30 is greater than a length of the first projections 48 in an axial direction of the propeller shaft axis 32.

[0078] The first receptacle 44 has four first recesses 52. The four first recesses 52 are identically formed. In particular, the first recesses 52 have the same shape and size. The first recesses 52 extend radially outward from the receptacle 44 toward the actuation axis 30. The four first recesses 52 are arranged circumferentially around the actuation axis 30 at equal intervals of 90° from one another. In other words, the first receptacle 44 is cross-shaped by means of the first recesses 52. The first recesses 52 are rectangular.

[0079] The first projections 48 and the first recesses 52 are formed such that the first projections 48 can be engaged with the first recesses 52 to transmit torque. A width of the first recesses 52 in the circumferential direction around the actuation axis 30 is greater than or equal to a width of the first projections 48 in the circumferential direction around the propeller shaft axis 32. A radial extension of the first recesses 52 in a radial direction from the actuation axis 30 is greater than or equal to a height of the first projections 48 in a radial direction from the propeller shaft axis 32. A depth of the first recesses 52 in an axial direction along the actuation axis 30 is greater than a length of the first projections 48 in an axial direction along the propeller shaft axis 32.

[0080] To couple the actuating element 24 to the propeller shaft 18, the first end 36 of the propeller shaft 18 is inserted into the first receptacle 44. The first projections 48 are inserted into the first recesses 52 in the axial direction of the actuating axis 30. In the coupled state, the first projections 48 are arranged in the first recesses 52. As a result, the first projections 48 can be brought into engagement with the first recesses 52 in the circumferential direction in order to transmit a torque. In this way, a rotational movement of the actuating element 24 about the actuating axis 30 can be transmitted to a rotational movement of the propeller shaft 18 about the propeller shaft axis 32.

[0081] The first joint 40 is formed by the first receptacle 44 and the first end 36 of the drive shaft 18. The coupling of the joint 40 is achieved via the first projections 48 and the first recesses 52.

[0082] The actuating device 16 further comprises a spring element 56. The spring element 56 is in Fig. 3 shown. The spring element 56 is arranged in the first receptacle 44 between the drive shaft 18 and the actuating element 24, in particular between a bottom of the first receptacle 44 and the first end 36 of the drive shaft 18. The spring element 56 is preloaded in a direction parallel to the actuating axis 30. The spring element 56 is particularly designed such that it presses the first end 36 of the drive shaft 18 away from the actuating element 24. By means of the spring element 56, the drive shaft 18 is thus pressed in the direction of the locking cylinder 12.

[0083] The actuating device 16 further comprises a holding element 58. The holding element 58 is Fig. 3 and is shown in the views of the Figures 2 and 5omitted so that the arrangement of the first end 36 in the first receptacle 44 can be seen in detail in order to illustrate the design of the first joint 40. The holding element 58 is arranged on a side of the actuating element 24 facing the cardan shaft 18. The holding element 58 can be attached to the actuating element 24, for example by means of a plug-in and / or clip connection. In the assembled state, the holding element 58 is attached to the actuating element 24. The holding element 58 has the function of a cover or a protective cap which is intended to prevent the first end 36 of the cardan shaft 18 from coming out of the first receptacle 44 in the assembled state. In other words, the holding element 58 holds the first end 36 of the cardan shaft 18 in the first receptacle 44. For this purpose, the holding element 58 is sleeve-shaped and has an opening through which the cardan shaft 18 is guided.The opening is configured such that, in the assembled state, an inner diameter of the opening is greater than or equal to an outer diameter of the propeller shaft 18 between the first and second ends 36, 38 and smaller than an outer diameter of the propeller shaft 18 at the first end 36. The outer diameter of the propeller shaft 18 at the first end 36 is defined by the first projections 48. In other words, the opening of the retaining element 58 is configured such that, in the assembled state, the first projections 48 cannot move out of the first recesses 52 and accordingly remain engaged therewith.

[0084] The rotary element 26 has a second receptacle 46 for the second end 38 of the cardan shaft 18. The second receptacle 46 is arranged on a side of the rotary element 26 facing the cardan shaft 18. In Fig. 8A top view of this side is shown. A depth of the second receptacle 46 in an axial direction of the lock cylinder axis 34 is greater than a length of the second projections 50 in an axial direction of the drive shaft axis 32.

[0085] The second receptacle 46 has four second recesses 54. The four second recesses 54 are identically formed. In particular, the second recesses 54 have the same shape and size. The second recesses 54 extend radially outward from the second receptacle 46 toward the lock cylinder axis 34. The four second recesses 54 are arranged circumferentially around the lock cylinder axis 34 at equal intervals of 90° from one another. In other words, the second receptacle 46 is cross-shaped by means of the second recesses 54. The second recesses 54 are rectangular.

[0086] The second projections 50 and the second recesses 54 are formed such that the second projections 50 can be engaged with the second recesses 54 to transmit torque. A width of the second recesses 54 in the circumferential direction around the lock cylinder axis 34 is greater than or equal to a width of the second projections 50 in the circumferential direction around the propeller shaft axis 32. A radial extension of the second recesses 54 in a radial direction from the lock cylinder axis 34 is greater than or equal to a height of the second projections 50 in a radial direction from the propeller shaft axis 32. A depth of the second recesses 54 in an axial direction along the lock cylinder axis 34 is greater than a length of the second projections 50 in an axial direction along the propeller shaft axis 32.

[0087] To couple the cardan shaft 18 to the rotating element 26, the second end 38 of the cardan shaft 18 is inserted into the second receptacle 46. The second projections 50 are inserted into the second recesses 54 in the axial direction of the lock cylinder axis 34. In the coupled state, the second projections 50 are arranged in the second recesses 54. As a result, the second projections 50 can be brought into engagement with the second recesses 54 in the circumferential direction to transmit torque. In this way, a rotational movement of the cardan shaft 18 about the cardan shaft axis 32 can be transmitted to a rotational movement of the rotating element 26 about the lock cylinder axis 34.

[0088] The second joint 42 is formed by the second receptacle 46 and the second end 38 of the drive shaft 18. The coupling of the joint 42 is achieved via the second projections 50 and the second recesses 54.

[0089] In the Figures 9 to 11The propeller shaft 18 is shown in detail with the first and second projections 48, 50. The first and second projections have the same shape and size. Hereinafter, the first and second projections 48, 50 are referred to collectively as projections 48, 50.

[0090] Each projection 48, 50 has an outer surface 60 and two side surfaces 62. The outer surface 60 and the side surfaces 62 are surfaces of the projection 48, 50. The outer surface 60 is arranged radially outwardly of the respective projection 48, 50 with respect to the propeller shaft axis 32. The side surfaces 62 are arranged in the circumferential direction around the propeller shaft axis 32 on opposite sides of the respective projection 48, 50. The outer surface 60 is thus arranged between the side surfaces 62. In particular, the outer surface 60 connects the two side surfaces 62.

[0091] The width of each projection 48, 50 corresponds to the greatest distance between the two side surfaces 62 in the circumferential direction around the propeller shaft axis 32. The height of each projection 48, 50 corresponds to the greatest radial distance of the propeller shaft axis to the outer surface 60. The length of each projection 48, 50 corresponds to the axial extension of the respective projection 48, 50 parallel to the propeller shaft axis.

[0092] The outer surface 60 is convexly curved. The radius of curvature of the outer surface 60 corresponds to half the diameter of the propeller shaft 18 at the first and second ends 36, 38 of the propeller shaft 18. The diameter of the propeller shaft 18 at the first and second ends 36, 38 corresponds to the sum of the diameter of the propeller shaft 18 between the ends 36, 38 and twice the radial extension of each projection 48, 50. The reference point of the radius of curvature thus lies on the propeller shaft axis 32. The height of each projection 48, 50 can be less than or equal to the radial extension of each recess 52, 54.

[0093] The two side surfaces 62 are preferably mirror-symmetrical to each other. The two side surfaces 62 are convexly curved. The radii of curvature of the two side surfaces 62 are equal.

[0094] In the present embodiment, the radii of curvature of the two side surfaces 62 are each greater than half the width of each projection 48, 50, wherein the width of each projection 48, 50 is smaller than the width of each recess 52, 54.

[0095] In an alternative embodiment, the radii of curvature of the two side surfaces 62 can each be equal to half the width of each projection 48, 50, wherein the width of each projection 48, 50 is less than or equal to the width of each recess 52, 54. In this case, the projections can be designed, in particular, as pins, wherein the two side surfaces 62 each have the shape of a half cylinder.

[0096] When the actuating element 24 is rotated about the actuating axis 30, the upstream side surface 62 of each first projection 48 abuts a corresponding side surface of the respective first recess 52, whereby the propeller shaft 18 is rotated about the propeller shaft axis 32. When the propeller shaft 18 is rotated about the propeller shaft axis 32, the downstream side surface 62 of each second projection 50 abuts a corresponding side surface of the respective second recess 54, whereby the rotating element 26 is rotated about the lock cylinder axis 34.

[0097] Fig. 12 shows an embodiment of a method 100 for mounting a locking system on a door. The locking system may be the locking system 10 shown in the Figures 1 to 11 described.

[0098] In a first step 102 of the method 100, the locking cylinder 12 is inserted into a recess provided for it in the door. In particular, the locking cylinder 12 is inserted into a lock of the door and secured therein, wherein the lock has the recess in the door.

[0099] In a further step 104 of the method 100, the second end 38 of the propeller shaft 18 is coupled to the rotating element 26. For this purpose, the second end 38 of the propeller shaft 18 is inserted into the second receptacle 46. The second projections 50 are inserted into the second recesses 54 and brought into engagement therewith.

[0100] In a further step 106 of the method 100, the actuating device 16 is positioned on an outer surface of the door. For this purpose, the actuating device 16 can be placed on the outer surface of the door above or next to the door recess and can be displaced along the outer surface, in particular until the attachment points of the actuating device 16 are aligned with corresponding attachment points on the door.

[0101] In a further step 108 of method 100, the actuating device is attached to the door. For example, the actuating device can be attached to the door using one or more fastening means, such as screws. The fastening means can, in particular, connect the attachment points of the actuating device 16 to the corresponding attachment points of the door.

Claims

1. An actuation apparatus (14) for actuating a lock cylinder (12), wherein the actuation apparatus (14) comprises an actuation device (16) and a universal shaft (18), wherein the actuation device (16) comprises an actuation element (24) which is rotatable about an actuation axis (30), wherein the universal shaft (18) is rotatable about a universal shaft axis (32), wherein a first end (36) of the universal shaft (18) is coupled to the actuation element (24) via a first joint (40), characterized in that the first joint (40) is formed as a pod joint.

2. The actuation apparatus (14) according to claim 1, wherein the first joint (40) is configured such that a rotational movement of the actuation element (24) about the actuation axis (30) and a rotational movement of the universal shaft (18) about the universal shaft axis (32) are coupled to each other.

3. The actuation apparatus (14) according to claim 1 or 2, wherein the actuation element (24) comprises a first receptacle (44) for the first end (36) of the universal shaft (18), wherein the first receptacle (44) and the first end (36) of the universal shaft (18) form the first joint (40).

4. The actuation apparatus according to claim 3, wherein the first receptacle (44) comprises at least two first recesses (52) which extend radially outward from the actuation axis (30), wherein the universal shaft (18) comprises at the first end (36) at least two first projections (48) which extend radially outward from the universal shaft axis (32), wherein the first projections (48) are engageable with the first recesses (52), in particular wherein a surface (60, 62) of the first projections (48) is formed in a convex shape, in particular rounded.

5. The actuation apparatus (14) according to claim 3 or 4, wherein the actuation device (16) further comprises a spring element (56), wherein the spring element (56) is arranged between the universal shaft (18) and the actuation element (24) in the first receptacle (44).

6. The actuation apparatus (14) according to any one of claims 3 to 5, wherein the actuation device (16) comprises a retaining element (58) which holds the first end (36) of the universal shaft (18) in the first receptacle (44).

7. The actuation apparatus (14) according to any one of claims 4 to 6, wherein a depth of the first receptacle (44) in a direction parallel to the actuation axis (30) is greater than an extent of the first projections (48) in a direction parallel to the universal shaft axis (32).

8. The actuation apparatus (14) according to any one of claims 1 to 7, wherein the universal shaft (18) comprises a second end (38) which is couplable to a rotary element (26) of a lock cylinder (12) that is rotatable about a lock cylinder axis (34), for coupling to the rotary element (26) of the lock cylinder (12) to form a second joint (42), and wherein the second end (38) of the universal shaft (18) is formed as part of a pod joint.

9. The actuation apparatus (14) according to claim 8, wherein the universal shaft (18) comprises at the second end (38) at least two second projections (50) which extend radially outward from the universal shaft axis (32), wherein the second projections (50) are engageable with at least two second recesses (54) of a second receptacle (46) of the rotary element (26), in particular wherein a surface (60, 62) of the second projections (50) is formed in a convex shape, in particular rounded.

10. The actuation apparatus (14) according to claim 4 or 9, wherein each of the first projections (48) and / or the second projections (50) comprises two side surfaces (62) which are arranged in the circumferential direction about the universal shaft axis (32) on opposite sides of the respective projection (48, 50), wherein the two side surfaces (62) are formed in a convex shape.

11. A lock cylinder (12) comprising a rotary element (26) and a cam (28), wherein the rotary element (26) and the cam (28) are rotatable about a lock cylinder axis (34), wherein the rotary element (26) is coupled to the cam (28) in one rotational direction about the lock cylinder axis (34), wherein the rotary element (26) comprises a second receptacle (46) for a second end (38) of a universal shaft (18) of an actuation apparatus (14) for coupling with an actuation apparatus (14), wherein the second receptacle is formed as part of a pod joint.

12. A lock cylinder (12) according to claim 11, wherein the second receptacle (46) comprises at least two second recesses (54) which extend radially outward from the lock cylinder axis (34), wherein at least two second projections (50) arranged at the second end (38) of the universal shaft (18) of an actuation apparatus (14) are engageable with the two second recesses (54).

13. The lock system (10) comprising a lock cylinder (12) and an actuation apparatus (14) for the lock cylinder (12), wherein the actuation apparatus (14) comprises an actuation device (16) and a universal shaft (18), wherein the actuation device (16) comprises an actuation element (24) which is rotatable about an actuation axis (30), wherein the universal shaft (18) is rotatable about a universal shaft axis (32), wherein a first end (36) of the universal shaft (18) is couplable to the actuation element (24) via a first joint (40), wherein the lock cylinder (12) comprises a rotary element (26) and a cam (28), wherein the rotary element (26) and the cam (28) are rotatable about a lock cylinder axis (34), wherein the rotary element (26) is coupled to the cam (28) in one rotational direction about the lock cylinder axis (34), wherein the rotary element (26) is couplable via a second joint (42) to a second end (38) of the universal shaft (18) of an actuation apparatus (14), wherein the first joint (40) and the second joint (42) are each formed as a pod joint.

14. The lock system (10) according to claim 13, wherein the lock cylinder (12) is configured according to the lock cylinder of claim 11 or 12 and the actuation apparatus (14) is configured according to the actuation apparatus of any one of claims 1 to 10.

15. A method (100) for mounting a lock system (10) on a door, wherein the lock system (10) comprises a lock cylinder (12) and an actuation apparatus (14) with an actuation device (16) and a universal shaft (18), wherein the actuation device (16) comprises an actuation element (24) which is rotatable about an actuation axis (30), wherein the universal shaft (18) is rotatable about a universal shaft axis (32), wherein a first end (36) of the universal shaft (18) is couplable to the actuation element (24) via a first joint (40), wherein the lock cylinder (12) comprises a rotary element (26) and a cam (28), wherein the rotary element (26) and the cam (28) are rotatable about a lock cylinder axis (34), wherein the rotary element (26) is coupled to the cam (28) in one rotational direction about the lock cylinder axis (34), wherein the rotary element (26) is couplable via a second joint (42) to a second end (38) of the universal shaft (18) of an actuation apparatus (14), wherein the first joint (40) and the second joint (42) are formed as pod joints, wherein the method comprises the following steps: - Inserting (102) the lock cylinder (12) into a recess provided for this purpose in the door;; - Coupling (104) the second end (38) of the universal shaft (18) to the rotary element (26) of the lock cylinder (12), in particular wherein in the coupling step (104) the second end (38) of the universal shaft (18) is inserted into the second receptacle (46) of the rotary element (26); - Positioning (106) the actuation device (16) on an outer surface of the door; and - Attaching (108) the actuation device (16) to the door.

16. The method (100) according to claim 15, wherein in the positioning step (106) the actuation device (16) is placed onto the outer surface of the door over the recess of the door and displaced along the outer surface, in particular until mounting points of the actuation device are aligned with corresponding mounting points of the door.