Actuation device with secured actuation unit

Abstract

The invention relates to an actuation device (100) comprising a housing (110), an actuation element (114) which is at least partly arranged in the housing (110), and an actuation unit (116) which can be accessed from the front face (124) of the actuation device (100). The actuation unit (116) can be moved between an actuation position, in which the actuation element (114) can be actuated by actuating the actuation unit (116), and a blocking position, in which the actuation of the actuation unit (116) is blocked and / or the actuation unit (116) is decoupled from the actuation element (114). A locking mechanism (140) is provided for securing the actuation unit (116) against an unauthorized movement of the actuation unit (116) out of the blocking position and into the actuation position, wherein the locking mechanism (140) comprises at least one locking element (142) which can be moved between a locking position for blocking the movement of the actuation unit (116) from the blocking position into the actuation position in a form-fitting manner and an unlocking position for releasing the movement of the actuation unit (116) from the blocking position into the actuation position, and the locking element (142) comprises at least one locking magnet (148) for moving the locking element (142) from the locking position into the unlocking position by means of the magnetic interaction between the locking magnet (142) and at least one unlocking magnet (160) of a corresponding key unit (102).

Description

[0001] Actuating device with secured actuating unit

[0002] The present invention relates to an actuating device comprising a housing, an actuating element arranged at least partially within the housing, and an actuating unit accessible from a front side of the actuating device. The actuating unit is adjustable between an actuating position, in which the actuating element can be actuated by actuating the actuating unit, and a blocking position, in which actuation of the actuating unit is blocked and / or the actuating unit is decoupled from the actuating element. The actuating device can, in particular, be a closure, such as a twist lock. The present invention further relates to a system comprising such an actuating device.

[0003] Twist locks are known from the prior art that have a locking core rotatably mounted in a lock housing as the actuating element, onto which a key can be attached from the front of the lock to actuate the locking core. The key is thus a separate actuating unit for operating the locking core and is therefore not part of the twist lock.

[0004] Furthermore, twist locks are known from the prior art that are directly equipped with an actuating unit, for example, a handle such as a knob or a latch, so that, for example, a locking core of the twist lock can be actuated directly via the actuating unit. Such twist locks offer no security against unauthorized operation or require additional precautions, such as an additional lock.

[0005] The keys for twist locks, especially snap-on keys, often have a fairly simple key contour and therefore do not offer good protection against unauthorized operation. The use of complex and delicate key contours, as is common with profile cylinders, offers greater security, but is disadvantageous in terms of vandalism protection, for example.

[0006] Against this background, the object of the present invention is to provide an actuating device with improved protection against unauthorized actuation and / or improved protection against vandalism.

[0007] The above-mentioned object is achieved according to the invention by an actuating device with a housing, with an actuating element arranged at least partially in the housing and with an actuating unit accessible from a front side of the actuating device, wherein the actuating unit is adjustable between an actuating position in which the actuating element can be actuated by actuating the actuating unit, and a locking position in which actuation of the actuating unit is blocked and / or the actuating unit is decoupled from the actuating element, wherein a locking mechanism is provided for securing the actuating unit against unauthorized adjustment of the actuating unit from the locking position to the actuating position, wherein the locking mechanism comprises at least one locking element,which is adjustable between a locking position for positively blocking the adjustment of the actuating unit from the locking position to the actuating position and an unlocking position for enabling the adjustment of the actuating unit from the locking position to the actuating position, and wherein the locking element comprises at least one locking magnet for adjusting the locking element from the locking position to the unlocking position by the magnetic interaction between the locking magnet and at least one unlocking magnet of a corresponding key unit.

[0008] By providing a locking mechanism to secure the actuating unit, unauthorized actuation of the actuating element is prevented by preventing actuation of the actuating element via the actuating unit. This allows for better actuation protection regardless of the design of the actuating element.

[0009] The use of a locking mechanism that can be unlocked through the interaction between locking magnets of one or more locking elements and respective unlocking magnets of a corresponding key unit also has the advantage of allowing for needs-based access security by adapting the number of locking elements and locking magnets, and thus the number of possible combinations, to the required level of security. Furthermore, this design enables a construction with smooth outer surfaces, particularly on the actuating unit, thereby reducing potential points of attack for vandalism.

[0010] The actuating element is preferably a mechanical actuating element, such as a locking core.

[0011] The actuating device may be a closure, in particular a rotary closure, such as a cam lock. Accordingly, the housing may be a closure housing, and the actuating element arranged at least partially within the housing may be a locking core.

[0012] The actuating element, in particular the locking core, can have or drive a locking element, for example a locking tongue, at its end facing away from the front of the housing.

[0013] The actuating element can, in particular, be rotatably mounted in the housing. The actuating element can then be actuated, in particular, by rotating the actuating element. The actuating element is at least partially arranged in the housing. The actuating element can, in particular, be arranged partially or completely in the housing. The actuating element is preferably protected by the housing.

[0014] The actuating device further comprises an actuating unit accessible from a front side of the actuating device. The actuating unit is preferably arranged at least partially outside the housing. This facilitates the actuation of the actuating unit. The actuating unit is preferably connected to the remaining actuating device in such a way that the actuating unit cannot be removed from the remaining actuating device, in particular not from the housing of the actuating device. The actuating unit is therefore particularly captively connected to the remaining actuating device, in particular to the housing.

[0015] The actuating element is preferably arranged such that it cannot be actuated directly from the front, but only via the actuating unit. For this purpose, the housing and / or the actuating unit, in particular, can block direct access to the actuating element from the front. This increases the tamper-proof nature of the actuating device.

[0016] The actuating unit is adjustable between an actuating position and a locking position. Moving the actuating unit from the actuating position to the locking position or vice versa can be achieved, for example, by a pushing movement, for example, in an axial direction of the housing, and / or a rotating movement.

[0017] In the actuating position, the actuating element is activated by actuating the

[0018] Actuating unit operable. For this purpose, the actuating element and the actuating unit can, for example, be coupled to one another in such a way that a movement exerted on the actuating unit, for example a rotary movement and / or a pushing movement, is transmitted to the actuating element. Preferably, the movement for actuating the actuating unit for actuating the actuating element and the movement for adjusting the actuating unit between the actuating position and the locking position are different movements, preferably different types of movement (pushing movement, rotary movement) and / or movements in different directions. In this way, it can be prevented, for example, that the actuating unit is inadvertently adjusted to the locking position when the actuating element is actuated.

[0019] According to a first embodiment, actuation of the actuating unit is blocked in the locked position. Actuation of the actuating unit can be blocked in the locked position, for example, by the engagement of corresponding form-locking elements that block movement of the actuating unit for actuating the actuating element, for example, a rotational movement.

[0020] According to a second embodiment, the actuating unit is decoupled from the actuating element in the locked position. In this way, the actuating unit can still be actuated, for example; however, the actuation is not transmitted to the actuating element, so the actuating element is not actuated.

[0021] The first design and the second design can also be combined with each other.

[0022] The actuating device comprises a locking mechanism for securing the actuating unit against unauthorized adjustment of the actuating unit from the locked position to the actuating position.

[0023] The locking mechanism comprises one or more locking elements, each of which can be adjusted between a locking position for positively blocking the movement of the actuating unit from the locked position to the actuating position and an unlocking position for enabling the movement of the actuating unit from the locked position to the actuating position. In the unlocking position of the locking element, the actuating unit can be adjusted accordingly into the actuating position, so that the actuating element can be actuated by actuating the actuating unit.

[0024] The one or more locking elements can be arranged in particular in the actuating unit, for example in the region of a receptacle of the actuating unit for partially receiving the housing, in particular a collar of the housing. In particular, several locking elements can be provided on the actuating unit, which are arranged circumferentially around the receptacle of the actuating unit.

[0025] In the locking position, the one or more locking elements preferably engage behind an undercut of the housing and thus prevent the actuating unit from being moved out of the locking position.

[0026] The one or more locking elements each have at least one locking magnet for moving the locking element from the locking position to the unlocking position through the magnetic interaction between the respective locking magnet and at least one unlocking magnet of a corresponding key unit. The number of possible codings for the key unit can be adjusted by selecting the number of locking elements or locking magnets. N locking elements, each with one locking magnet, enable - with optional alignment of the magnetic north or south pole of the locking magnets in the direction of the unlocking magnets and corresponding alignment of the unlocking magnets - for example, up to 2 NDifferent codings for the key unit. The aforementioned object is further achieved according to the invention by a system comprising the previously described actuating device or an embodiment thereof and further comprising a corresponding key unit, wherein the key unit has unlocking magnets corresponding to the locking magnets.

[0027] The corresponding unlocking magnets are in particular arranged and aligned in such a way that, given a predetermined arrangement of the key unit relative to the actuating device, the unlocking magnets interact with the corresponding locking magnets in such a way that the one or more locking elements move into the unlocking position.

[0028] The key unit can in particular be designed to rest against, preferably to be placed on, the actuating unit. Accordingly, the key unit can preferably be placed on the actuating unit. This enables simple positioning of the key unit relative to the actuating unit in order to arrange the one or more unlocking magnets of the key unit relative to the one or more locking magnets in such a way that the one or more locking elements are moved into the unlocked position. The key unit and the actuating unit preferably have contours that correspond to one another and are preferably designed asymmetrically such that the key unit can only be placed on the actuating unit in a predetermined orientation. This facilitates the correct positioning of the key unit on the actuating unit.

[0029] Various embodiments of the actuating device and the system are described below, with the individual embodiments each applying independently to the actuating device and the system. Furthermore, the individual embodiments can be combined with one another as desired. In one embodiment, the locking mechanism comprises a plurality of locking elements, each of which can be adjusted between a locking position for positively blocking the adjustment of the actuating unit from the locked position to the actuating position and an unlocking position for enabling the adjustment of the actuating unit from the locked position to the actuating position.The multiple locking elements each comprise at least one locking magnet for moving the respective locking element from the locked position to the unlocked position through the magnetic interaction between the locking magnet and at least one unlocking magnet of a corresponding key unit. The multiple locking elements allow the actuating unit to be more effectively held in the locked position. Furthermore, the multiple locking elements enable more combinations for coding the key unit.

[0030] In one embodiment, the locking element comprises a pivoting arm mounted pivotably about a locking element axis, which can be pivoted from the locking position to the unlocking position. The locking magnet is preferably arranged on the pivoting arm at a distance from the locking element axis.

[0031] By providing a pivoting arm pivoted about a locking element axis, which can be pivoted from the locking position to the unlocking position, a locking element is provided that is reliably guided between the locking position and the unlocking position, so that tilting of the locking element can be reliably prevented, even under adverse environmental influences or the effects of force due to vandalism. The locking magnet is preferably arranged on the pivoting arm at a distance from the locking element axis. In particular, the center point of the locking magnet, or the central axis of the locking magnet running through the north and south poles of the locking magnet, is preferably arranged at a distance from the locking element axis.

[0032] The locking magnet, which is arranged at a distance from the locking element axis on the swivel arm, can create a lever effect on the swivel arm through magnetic interaction with the locking magnet in order to pivot it specifically between the locking position and the unlocking position.

[0033] The locking magnet is preferably arranged at a distance from the locking element axis such that the locking magnet is positioned completely outside the locking element axis. This results in a longer lever arm. However, it is also conceivable for the locking element axis to extend through a lateral region of the locking magnet, as long as the center point or central axis of the locking magnet is spaced from the locking element axis.

[0034] The pivot arm is preferably made of a non-ferromagnetic material, in particular aluminum or plastic, in order to weaken the magnetic interaction of the locking magnet with an unlocking magnet of a corresponding key unit as little as possible or not at all.

[0035] In one embodiment, the actuating unit and the actuating element have corresponding coupling elements that are engaged in the actuating position of the actuating unit and disengaged in the locking position of the actuating unit. In this way, actuation of the actuating element in the locking position is reliably prevented. In particular, this also ensures that the actuating unit can continue to be moved in the locking position as in the actuating position, but without the actuating element being actuated. This prevents attempts to overcome a blockage of the actuating unit using physical force and thus increases protection against vandalism and tampering.

[0036] When the coupling elements are engaged, they preferably transmit a movement, in particular a rotational movement and / or a pushing movement, from the actuating element to the actuating unit. In this way, a corresponding movement exerted on the actuating unit for its actuation can be transmitted to the actuating element for its actuation. The coupling elements can, for example, have mutually corresponding form-fitting elements, for example one or more protruding shaped elements and one or more corresponding receptacles which are engaged in the actuating unit and in this way can transmit a movement, in particular a rotational movement. The protruding shaped elements can be pins or teeth, for example. The receptacles can be recesses or gaps between teeth, for example.

[0037] In the locked position, the coupling elements are disengaged, so that actuation of the actuating unit cannot cause actuation of the actuating element.

[0038] The coupling elements can, for example, be designed as a pinion and internal gear ring, the teeth of which mesh with each other in the actuating position and are axially offset from each other in the locking position so that their teeth are disengaged.

[0039] In one embodiment, the coupling elements have corresponding alignment surfaces that align the coupling elements with each other when the actuating unit is moved from the locked position to the actuating position. The alignment surfaces can be designed, for example, as rounded or inclined surfaces. In particular, the alignment surfaces are arranged on the coupling elements such that they lie opposite each other in the locked position. When the actuating unit is moved to the actuating position, the alignment surfaces can then slide against each other, thereby aligning the coupling elements, for example, a pin or tooth and a receptacle, with each other.

[0040] If the adjustment of the actuating unit from the locking position to the actuating position is carried out by a movement in the axial direction, the alignment surfaces can be arranged in particular on mutually opposite axial end faces of the coupling elements, in particular their form-locking elements.

[0041] In one embodiment, the actuating unit and the housing have corresponding positive-locking elements that block actuation of the actuating unit in the locked position of the actuating unit. For example, the actuating unit and the housing can have corresponding pins and receptacles as corresponding positive-locking elements, the engagement of which in the locked position prevents movement of the actuating unit to actuate the actuating element. In this way, actuation of the actuating element is reliably blocked in the locked position.

[0042] In the actuating position, the form-locking elements release the actuation of the actuating unit in particular, so that the actuating unit and thus the actuating element can be actuated.

[0043] In one embodiment, a spring element is provided that moves the actuating unit into the actuating position when the at least one locking element is in the unlocked position. As a result, the actuating unit is spring-loaded by the spring element and moved into the actuating position when the one or more locking elements move into the unlocked position. This facilitates operation of the actuating device. Furthermore, the user receives visual and / or haptic feedback of the unlocking of the locking elements. Furthermore, this prevents the one or more locking elements from accidentally falling back into the locking position.

[0044] The spring element can be a spring, for example a spiral spring, or an elastic element which expands in the unlocking position of the at least one locking element and moves the actuating unit into the actuating position.

[0045] The one or more locking elements can prevent the actuating unit from being removed in the actuating position. In particular, the one or more locking elements can engage behind a safety undercut in the actuating position. This prevents accidental release of the actuating unit in the actuating position.

[0046] In one embodiment, the actuating unit has a stop surface that blocks removal of the actuating unit from the housing. In particular, a counter surface corresponding to the stop surface can be provided on the actuating device, in particular on the housing or on the actuating unit. The counter surface's interaction with the stop surface blocks removal of the actuating unit from the housing. This prevents the actuating unit from being removed from the actuating device.

[0047] In one embodiment, the key unit and the actuating unit are adapted to one another such that the actuating unit can be actuated by actuating the key unit in the unlocked position of the at least one locking element. In particular, the key unit and the actuating unit can have corresponding form-locking elements, so that when they engage with one another, the actuating unit can be actuated, for example, rotated, by actuating the key unit. In this way, the actuating unit can be actuated with the key unit in place, which facilitates operation of the actuating device.

[0048] Additionally or alternatively, locking magnets and / or unlocking magnets can also be used which, when the key unit is placed on the actuating unit, create a sufficient magnetic attraction force between the key unit and the actuating unit in order to be able to actuate the actuating unit by actuating the key unit.

[0049] Further features and advantages of the actuating device and the system will become apparent from the following description of embodiments, with reference to the accompanying drawings.

[0050] In the drawing show

[0051] Fig. 1a-e shows a first embodiment of the actuating device and the system with the locking elements in the locking position and the actuating unit in the blocking position,

[0052] Fig. 2a-c the embodiment of Fig. 1a-c with the locking elements in the unlocking position and the actuating unit in the actuating position,

[0053] Fig. 3a-b the embodiment from Fig. la-c after rotation of the actuating unit by 45°.

[0054] Figures 1a-e show an embodiment of the actuating device and the system. Figure 1a shows a perspective view of the actuating device 100 and a corresponding key unit 102, which together form the system 104. Figure 1b shows a sectional view of the actuating device 100 and the key unit 102 from the side, corresponding to the sectional plane designated "lb" in Figure 1c. Figure 1c shows a sectional view from below, corresponding to the sectional plane designated "lc" in Figure 1b. Figure 1d shows a sectional view of the key unit 102 from below, corresponding to the sectional plane designated "ld" in Figure 1b. Figure 1e shows a partially broken-away and partially sectioned perspective view of the actuating device 100, with some parts hidden.

[0055] The actuating device 100 is designed as a closure, namely as a rotary closure, and comprises a housing 110 in the form of a closure housing, an actuating element 114 in the form of a locking core arranged in a cylindrical bore 112 in the housing 110, and an actuating unit 116 accessible from a front side 124 of the actuating device 100.

[0056] The actuating device 100 can, for example, be designed as a cam lock, as shown in Fig. 1a-b. For this purpose, a locking tongue 130 is connected in a rotationally fixed manner to the actuating element 114 at the end 128 of the actuating element 114 facing away from the front side 124, for example, screwed as shown in Figure 1b. However, other configurations of the lock 100 are also conceivable.

[0057] The actuating unit 116 comprises an actuating part 117 and a coupling part 118. The actuating part 117 is placed on the front side 124 of the housing 110 and, for this purpose, has an inner contour 132 adapted to the outer contour of the housing 110, which inner contour forms a receptacle 134 (see Fig. 2a) for a collar 111 of the housing on the front side 124 of the actuating device 100. The actuating unit 116 can be gripped by the front side 124 and rotated about an axis A of the actuating device. The coupling part 118 projects from the actuating part 117 into the bore 112 and forms an inner receptacle 129. First coupling elements 136 in the form of several webs are provided on the actuating part 117 and project inward into the inner receptacle 129.

[0058] The end 120 of the actuating element 114 opposite the end 128 is arranged in the inner receptacle 129 formed by the actuating part 117 and has second coupling elements 138 corresponding to the first coupling elements 136 in the form of a plurality of teeth and intermediate spaces therebetween as corresponding receptacles for the webs of the first coupling elements 136.

[0059] In Fig. 1a-e, the actuating unit 116 is arranged in a locked position. In the locked position, the first coupling elements 136 and the second coupling elements 138 are axially displaced relative to one another and thus disengaged. This is particularly illustrated in Fig. 1e, which shows the actuating device 100 in a partially sectioned perspective view, with the housing 110 and the actuating part 117 hidden.

[0060] In the locked position, the actuating unit 116 and the actuating element 114 are therefore decoupled from each other.

[0061] In the present embodiment, a rotary actuation of the actuating unit 116 is possible in the locked position. However, this is not transmitted to the actuating element 114. It is also conceivable that—in addition to or as an alternative to the decoupling of the actuating unit 116 and the actuating element 114—a rotary actuation of the actuating unit 116 is blocked in the locked position. For this purpose, for example, corresponding form-fitting elements can be provided on the actuating unit 116 and on the housing 110, for example a pin projecting from the actuating part 117 into the receptacle 134, which in the locked position engages in a corresponding receptacle in the collar 111 of the housing 110.

[0062] To prevent unauthorized adjustment of the actuating unit 116 from the locked position shown in Figure 1b, the actuating device 100 further comprises a locking mechanism 140. The locking mechanism 140 comprises a plurality of locking elements 142, twelve in the present exemplary embodiment, arranged circumferentially in the actuating part 117 of the actuating unit 116. The locking elements 142 each have a pivot arm 146 pivotally mounted about a respective locking element axis 144, on which a respective locking magnet 148 is arranged, spaced from the locking element axis 144.

[0063] The pivot arms 146 and thus the locking elements 142 can each be pivoted between a locking position (see Fig. 1b-c) and an unlocking position (see Fig. 2a-b).

[0064] In the locking position, the pivot arms 146 engage inwardly into the receptacle 134 and behind an undercut 150 provided on the housing 110, thereby positively blocking any axial movement of the actuating unit 116 and thus any adjustment of the actuating unit 116 from the locked position (see Fig. 1b) into the actuating position (see Fig. 2b). The pivot arms 146 are held in the locking position by the magnetic interaction of the locking magnets 148 with the housing 110, which in this case is made of steel. Alternatively, a ferromagnetic element, such as a steel ring, can be provided on the housing 110 opposite the pivot arms 146, the magnetic interaction of which element with the locking magnets 148 holds the pivot arms in the locking position. In this case, the housing 110 can be made of a non-ferromagnetic material, for example plastic.In the present exemplary embodiment, the key unit 102 is designed in the form of an overcap that can be placed on the actuating unit 116 and, for this purpose, has an inner contour 154 corresponding to the outer contour 152 of the actuating part 117 of the actuating unit 116, which forms a receptacle 156 for the actuating unit 116, namely for the actuating part 117 of the actuating unit 116.

[0065] The actuating unit 116 and the key unit 102 have mutually corresponding form-locking elements 158, 159 in the form of a protruding web 158 of the actuating unit 116 and a corresponding receptacle 159 of the key unit 102, so that the key unit 102 can only be placed on the actuating unit 116 in a predetermined orientation.

[0066] The key unit 102 further comprises a number of unlocking magnets 160 corresponding to the number of locking magnets 148, which are arranged and aligned such that the unlocking magnets 160, when the key unit 102 is placed on the actuating unit 116, magnetically interact with the locking magnets 148 such that the pivot arms 146 and thus the locking elements 142 are moved into the unlocking position.

[0067] Figs. 2a-c show the system 104 with the actuating device 100 and the key unit 102 from Figs. 1a-d, wherein Fig. 2a shows a sectional view corresponding to Fig. 1b and Fig. 2b shows a sectional view corresponding to Fig. 1c. The sectional plane of Fig. 2b is designated "11b" in Fig. 2a. Figure 2c shows a partially cutaway and partially sectioned perspective view of the actuating device 100 corresponding to Fig. 1e, wherein the housing 110 and the actuating part 117 are again hidden.

[0068] In Fig. 2a-c, the key unit 102 is placed on the actuating unit 116. The

[0069] Locking elements 142 are shown in Fig. 2a-c respectively in the

[0070] Unlocking position. Only when the unlocking magnets 160 correspond to the locking magnets 148, in particular, are correctly arranged and aligned with respect to their magnetic north pole-south pole alignment, are all locking elements 142 moved into the unlocking position.

[0071] In this way, the actuating unit 116 with the locking magnets 148 and the key unit 102 can be coded to each other. The multitude of possible configurations of the locking and unlocking magnets thus achieves a high degree of security.

[0072] In the unlocked position, the locking elements 142 no longer engage behind the undercut 150, so that the actuating unit 116 is no longer secured in the locked position by the locking elements 142 and an axial movement of the actuating unit 116 into the actuating position of the actuating unit 116 shown in Fig. 2a-b is possible.

[0073] By means of spring elements 180 arranged between the housing 110 and the actuating unit 116, which in the present exemplary embodiment are designed as spiral springs, the actuating unit 116 is adjusted in the unlocking position of the locking elements 142 from the blocking position (see Fig. 1a-e) into the actuating position (see Fig. 2a-c), in which the first and second coupling elements 136, 138 are in engagement with one another (see in particular Fig. 2c), so that a rotating actuation of the actuating unit 116 is transmitted to the actuating element 114 and thus the locking tongue 130 can be pivoted in the present exemplary embodiment.

[0074] Figs. 3a-b show the actuating device 100 from Figs. 2a-b after a rotating actuation of the actuating unit 116 in the actuating position and thus a corresponding actuation of the actuating element 114 and the locking tongue 130 by an angle of 45°. Fig. 3a shows a sectional view corresponding to Fig. 2a. Fig. 3b shows a sectional view corresponding to Fig. 2b. The sectional plane of Fig. 3b is designated "111b" in Fig. 3a.In order that the first and second coupling elements 136, 138 are brought into engagement with one another independently of the original azimuthal alignment of the first and second coupling elements 136, 138 and thus an adjustment of the actuating unit 116 from the locked position into the actuating position is not blocked by the first and second coupling elements 136, 138, the first and second coupling elements 136, 138 have mutually corresponding alignment surfaces 137, 139 in the form of rounded contours which slide on one another when adjusted into the actuating position, so that the coupling elements 136, 138 align with one another (see Fig. 1b and 1e).

[0075] The actuating unit 116 further has a stop surface 182, which interacts with a counter surface 184 such that the actuating unit is held in the actuating position on the housing 110. The stop surface 182 and the counter surface 184 can be seen in the sectional view in Fig. 3a, in which the actuating unit 116 and the actuating element 114 are rotated by 45°. In the present exemplary embodiment, the stop surface 182 is provided on the coupling part 118 and interacts with the counter surface 184 provided on the actuating element 114, by which the axial movement of the actuating unit 116 relative to the actuating element 114 or to the housing 110 is limited such that the actuating unit 116 cannot be removed from the housing 110.

[0076] Instead of or in addition to the stop surface 184 on the coupling part, it is also conceivable for the locking elements 142 to engage behind a corresponding counter surface on the housing 110 in the actuating position and thus hold the actuating unit 116 on the housing 110. In this case, the stop surface is formed by the locking elements 142.

[0077] The actuation of the actuating unit 116 in the actuating position can, for example, occur with the key unit 102 in place. For this purpose, the actuating unit 116 and the key unit 102 have corresponding positive-locking elements 158, 159 to transmit a rotational movement exerted on the key unit 102 to the actuating unit 116. It is also conceivable to remove the key unit 102 before actuating the actuating unit 116. The locking elements 142 are prevented from falling back into the locking position in the actuating position by the collar 111 of the housing 110 (see Figs. 2a and 3a).

[0078] 100 Actuating device

[0079] 102 key unit

[0080] 104 Systems

[0081] 110 housings

[0082] 111 Collar of the housing

[0083] 112 bore

[0084] 114 Actuating element

[0085] 116 Actuating unit

[0086] 117 Actuating part of the actuating unit

[0087] 118 Coupling part of the actuating unit

[0088] 120 opposite end 128

[0089] 124 Front

[0090] 128 end of the actuating element facing away from the front

[0091] 129 inner recording

[0092] 130 locking tongue

[0093] 132 Inner contour of the actuating part

[0094] 134 recording

[0095] 136 first coupling elements

[0096] 137 rounded contours of the first coupling elements

[0097] 138 second coupling elements

[0098] 139 rounded contours of the second coupling elements

[0099] 140 Locking mechanism

[0100] 142 locking elements

[0101] 144 Locking element axis 146 Swivel arm

[0102] 148 locking magnet

[0103] 150 undercut

[0104] 152 Outer contour of the actuating part

[0105] 154 Inner contour of the key unit

[0106] 156 Key unit holder, 159 Form-locking elements

[0107] 160 unlocking magnet

[0108] 180 spring element

[0109] 182 stop surface

[0110] 184 Counter surface

Claims

P a t e n t a n s p r ü c h e 1. An actuating device (100) comprising a housing (110), an actuating element (114) arranged at least partially in the housing (110), and an actuating unit (116) accessible from a front side (124) of the actuating device (100), wherein the actuating unit (116) is adjustable between an actuating position in which the actuating element (114) can be actuated by actuating the actuating unit (116), and a locking position in which actuation of the actuating unit (116) is blocked and / or the actuating unit (116) is decoupled from the actuating element (114), characterized in that a locking mechanism (140) is provided for securing the actuating unit (116) against unauthorized adjustment of the actuating unit (116) from the locking position to the actuating position, in that the locking mechanism (140) comprises at least one locking element (142),which is adjustable between a locking position for positively blocking the adjustment of the actuating unit (116) from the locking position into the actuating position and an unlocking position for releasing the adjustment of the actuating unit (116) from the locking position into the actuating position, and in that the locking element (142) has at least one locking magnet (148) for adjusting the locking element (142) from the locking position into the unlocking position by the magnetic interaction between the locking magnet (142) and at least, an unlocking magnet (160) of a corresponding key unit (102).

2. Actuating device according to claim 1, characterized in that the locking mechanism (140) comprises a plurality of locking elements (142), each of which is adjustable between a locking position for positively blocking the adjustment of the actuating unit (116) from the locking position to the actuating position and an unlocking position for enabling the adjustment of the actuating unit (116) from the locking position to the actuating position, and wherein the plurality of locking elements (142) each comprise at least one locking magnet (148) for adjusting the respective locking element (142) from the locking position to the unlocking position by means of the magnetic interaction between the locking magnet (148) and at least one unlocking magnet (160) of a corresponding key unit (102).

3. Actuating device according to claim 1 or 2, characterized in that the locking element (142) comprises a pivoting arm (146) which is pivotally mounted about a locking element axis (144) and which can be pivoted from the locking position into the unlocking position, and in that the locking magnet (148) is arranged on the pivoting arm (146) at a distance from the locking element axis (144).

4. Actuating device according to one of claims 1 to 3, characterized in that the actuating unit (116) and the actuating element (114) have corresponding coupling elements (136, 138) which are engaged in the actuating position of the actuating unit (116) and disengaged in the blocking position of the actuating unit (116).

5. Actuating device according to one of claims 1 to 4, characterized in that the coupling elements (136, 138) have mutually corresponding alignment surfaces (137, 139) which align the coupling elements (136, 138) with each other when the actuating unit (116) is adjusted from the locking position to the actuating position.

6. Actuating device according to one of claims 1 to 5, characterized in that the actuating unit (116) and the housing (110) have corresponding form-locking elements which block actuation of the actuating unit (116) in the locked position of the actuating unit (116).

7. Actuating device according to one of claims 1 to 6, characterized in that a spring element (280) is provided which moves the actuating unit (116) into the actuating position in the unlocking position of the at least one locking element (142).

8. Actuating device according to one of claims 1 to 7, characterized in that the actuating unit (116) has a stop surface (182) which blocks removal of the actuating unit (116) from the housing (110).

9. Actuating device according to one of claims 1 to 8, characterized in that the actuating device (100) is a closure, in particular a rotary closure.

10. Actuating device according to one of claims 1 to 9, characterized in that the actuating element (114) is rotatably mounted in the housing (110).

11. System (104) comprising an actuating device (100) according to one of claims 1 to 10 and a corresponding key unit (102), wherein the key unit (102) has unlocking magnets (160) corresponding to the locking magnets (148).

12. System according to claim 11, characterized in that the key unit (102) can be placed on the actuating unit (116).

13. System according to claim 11 or 12, characterized in that the key unit (102) and the actuating unit (116) are adapted to one another, in particular have mutually corresponding form-locking elements (158, 159), such that the actuating unit (116) in the unlocking position of the at least one Locking element (124) can be actuated by actuating the key unit (102).

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