Closure

Abstract

A closure for securing a movable element to a stationary element as required comprises a base unit and a locking element, wherein the base unit has a locking receptacle into which the locking element can be inserted when the movable element is moved towards the stationary element in a closing direction, and a locking element mounted on or in the base unit, which can be displaced transversely to the closing direction between a release position and a locking position, wherein the locking element is pivotable and the closure comprises a control mechanism which is designed to pivot the locking element into a contact position during or after displacement of the locking element into the locking position such that a retaining edge of the locking element acting on the locking element moves the locking element further in the closing direction relative to the base unit,to create a contact pressure between the movable element and the stationary element.

Description

[0001] The invention relates to a closure for the required fixing of a movable element, in particular a wing of a window, a door, a gate, a flap or the like, in particular a window sash, to a stationary element, in particular a frame of a window, a door, a gate, a flap or the like, in particular a window frame, wherein the closure comprises a base unit and a locking element, wherein the base unit is designed for fastening to the stationary element and the locking element is designed for fastening to the movable element, or vice versa.

[0002] Such locks are generally used to lock or unlock windows, doors, gates, hatches, or the like. For locking, the locking element is secured to the base unit, for example, by positive engagement with an adjustable component of the base unit.

[0003] When a window or door is closed, the joint between the frame and the sash should be sealed as well as possible to prevent heat loss and reduce sound transmission. A mechanical engagement between the base unit and the locking element with as little play as possible promotes a tight fit between the sash and the frame. However, there is also a desire for the locking mechanism to operate smoothly. It is difficult to meet both requirements simultaneously with a locking mechanism of this type. This is further complicated by the fact that locking mechanisms for windows, doors, and the like are generally mass-produced and subject to high cost pressure.

[0004] It is an object of the invention to provide a closure of simple construction which is both smooth and enables a high degree of tightness.

[0005] This problem is solved by a closure having the features of claim 1.

[0006] According to the invention, the base unit has a locking receptacle into which the locking element can be inserted in a closing direction when the movable element is moved towards the stationary element, and a locking element mounted on or in the base unit, which locking element can be displaced transversely to the closing direction between a release position releasing an insertion opening of the locking receptacle and a locking position blocking the insertion opening of the locking receptacle, wherein the locking element is pivotable and the closure comprises a control mechanism which is designed to pivot the locking element into a contact position during or after displacement of the locking element into the contact position such that a retaining edge of the locking element acting on the locking element moves the locking element further in the closing direction relative to the base unit in order to generate a contact pressure between the movable element and the stationary element.

[0007] The locking action itself is achieved by sliding the locking element, while pivoting the locking element presses the movable element firmly against the stationary element, possibly compressing an elastic seal arranged in the joint area. This allows the sliding movement to be low-friction while still achieving a high degree of tightness. The control mechanism ensures that the contact pressure does not have to be generated by a separate actuation of the lock, but is generated automatically when the lock is locked.

[0008] A sliding locking element enables a particularly simple locking construction. For example, the sliding locking element can be plate-shaped and / or slideably guided within the base unit.

[0009] According to one embodiment of the invention, the locking element is a simple pin. In particular, the pin can have a cylindrical cross-section, at least in sections, to allow the locking element to slide particularly easily into the locking receptacle. To ensure protection against levering, the pin can be mushroom-shaped. Preferably, the pin axis of the pin runs transversely to the closing direction. A screw can be passed axially through the pin to enable the pin to be screwed to the stationary element or the movable element.

[0010] It may be that the fixed element is a frame and the closing direction, when the lock is installed, is transverse to a base plane of the frame.

[0011] The control mechanism can have a conversion device by means of which, when the lock is mounted, the locking element can be automatically moved from the release position toward the locking position by moving the movable element in the closing direction. The conversion device allows the force exerted by a user on the movable element to be used to adjust the lock, thus eliminating the need for a separate locking drive or allowing it to be designed with a weaker drive.

[0012] The transfer device can have a ramp formed on the locking element for the locking element. When the locking element hits the ramp, the locking element is displaced transversely to the direction of movement of the locking element. Transferring the movements can be achieved particularly easily by providing an inclined surface on the locking element.

[0013] According to one embodiment of the invention, the conversion device comprises a contact element that extends through the locking receptacle and is coupled to the locking element via a driver device, wherein the contact element is guided by at least one inclined guide of the base unit that runs obliquely to the closing direction. During the closing process, the locking element entering the locking receptacle strikes the contact element and acts on it in the closing direction, wherein the inclined guide imparts a component to the movement of the acted-on contact element that points transversely to the closing direction. A corresponding conversion device has a particularly simple construction. In particular, the contact element can be designed as a simple rod that is guided in or on the base unit by means of inclined guides.

[0014] According to a further embodiment of the invention, the control mechanism comprises the locking element being mounted on or in the base unit by means of at least two guide slots and sliding blocks guided in these, wherein at least one guide slot comprises a sliding section extending transversely to the closing direction and a pivoting section extending in the closing direction. The pivoting section provides the range of motion required for a pivoting movement of the locking element.

[0015] The pivoting section can be arranged at an end region of the sliding section in the direction of the locking position, so that during the locking process, the pivoting movement only occurs towards the end of the sliding movement. This ensures that the contact pressure is only generated when the sliding process is already largely or completely completed.

[0016] A special embodiment of the invention provides that the locking element is mounted on or in the base unit by means of precisely two guide blocks and sliding blocks guided in these. The two guide blocks are spaced apart from each other transversely to the closing direction and have aligned sliding sections. This enables particularly reliable guidance of the locking element.

[0017] It can be provided that one of the two guide blocks extends exclusively transversely to the closing direction. The sliding block guided in this guide block does not move in the closing direction, so that the locking element pivots about a pivot axis fixed with respect to the closing direction, which extends through the respective guide block, preferably through an end region thereof.

[0018] Alternatively, the two guide slots can have respective pivoting sections that extend in opposite directions from the respective end regions of the sliding sections. This allows the locking element to pivot about a pivot axis located between the guide slots. An advantage of this design is that a relatively large pivot angle is achieved for a given length of the pivoting sections.

[0019] According to a further embodiment of the invention, the control mechanism comprises a spring device that directly or indirectly urges the locking element in the locked position toward the contact pressure position. The spring device generates the contact pressure required for sealing, whereby the amount of the contact pressure can be easily adjusted by selecting the spring constant.

[0020] The control mechanism can comprise a transmission element that interacts with the locking element and is displaceable between a blocking position that holds the locking element in the pressing position and a release position that allows the locking element to pivot back from the pressing position, wherein the spring device urges the transmission element toward the blocking position. The pivoting movement of the locking element can be controlled particularly easily by displacing the transmission element. The spring device can be permanently engaged with the transmission element, regardless of the displaced position of the locking element.

[0021] A further embodiment of the invention provides that the transmission element can be latched to the locking element, and the latching is released when the transmission element is in the released position. The transmission element can thus be used to hold the locking element in the contact position without requiring a continuous energy supply. For latching, a hook can be arranged on the locking element, which interacts with a locking pin of the transmission element.

[0022] The closure can comprise an electrically activated actuator, which is designed to move the transmission element into the release position upon activation. Activating the actuator allows the locking element to be easily unlocked and thus the closure to be opened.

[0023] Preferably, the electrically activatable actuator comprises an element made of a shape memory alloy that is connected to the transmission element and connectable to an electrical energy source. Such an actuator is particularly cost-effective and space-saving.

[0024] According to a further embodiment of the invention, the control mechanism comprises an electric motor which, upon activation, is designed to directly or indirectly actuate the locking element such that it moves from the release position to the locking position and / or pivots it into the pressing position. A user then does not have to exert the force to move the corresponding components themselves, since the transition of the closure from the open to the closed state and / or vice versa is motorized.

[0025] The electric motor is preferably connected to the locking element via a self-locking gear mechanism. This makes it possible to hold the locking element in the locked position without a continuous power supply. For example, the self-locking gear mechanism can comprise a spindle drive.

[0026] The electric motor can be coupled to an electronic control device of the closure, which is designed to activate and deactivate the electric motor on the basis of control specifications, for example in response to sensor signals.

[0027] The invention also relates to a building element such as a window, a door, a gate, a flap or the like with a frame, a sash and a lock for fixing the sash to the frame, wherein the lock is designed as described above and wherein the frame forms the stationary element and the sash forms the movable element.

[0028] Further developments of the invention can also be found in the dependent claims, the description and the accompanying drawings.

[0029] The invention is described below by way of example with reference to the drawings. Fig. 1 is an exploded view of a closure according to a first embodiment of the invention. Fig. 2 shows the closure according to Fig. 1 in a top view. Fig. 3 shows the interior of the closure according to Fig. 1 from below in different states. Fig. 4 is an exploded view of a closure according to a second embodiment of the invention. Fig. 5 shows the closure according to Fig. 2 in a top view. Fig. 6 shows the interior of the closure according to Fig. 2 from above. Fig. 7 shows the interior of the closure according to Fig. 4 from below in different states.

[0030] Fig. 1 shows a lock 11 according to the invention, which is provided for fixing a window sash to the associated frame. The lock 11 comprises a base unit 13, which is designed for attachment to the frame and, in the illustrated embodiment, has a plate 14 and a hood 15 attached to the plate. The hood 15 has a locking receptacle 19 in the form of a groove open on one side. In particular, the locking receptacle 19 extends in a closing direction 21 and has an insertion opening 23 for a locking element 25, which is attached to the window sash and is here partially cylindrical. In principle, it could also be provided that the base unit 13 is designed for attachment to the window sash and the locking element 25 is designed for attachment to the frame. Furthermore, the lock 11 according to the invention could also be provided for a door, a gate, a flap or the like.

[0031] The base unit 13 and the locking element 25 are mounted such that when the window is closed, i.e., when the window sash is moved toward the frame, the locking element 25 retracts into the locking receptacle 19 in the closing direction 21, which preferably runs transversely to the base plane of the window. If the window sash is a casement, the movement of the locking element 25 relative to the base unit 13 has a component pointing transversely to the closing direction 21, which, however, can be neglected for the relatively short distance during retraction.

[0032] The locking element 25 can be fixed in the locking receptacle 19 by means of a blocking element 27, which is mounted in the base unit 13 for displacement in a direction 28 extending transversely to the closing direction 21 and is accordingly movable between a release position releasing the insertion opening 23 and a blocking position blocking the insertion opening 23. In the illustrated embodiment, the blocking element 27 is plate-like and provided with a recess 37 in which the locking element 25 can be received. The recess 37 has an edge section running obliquely to the closing direction 21 and the displacement direction 28, which forms a run-up slope 39 for the locking element 25. A further edge section of the recess 37, which forms a retaining edge 41, serves to engage behind the locking element 25 received in the recess 37.

[0033] The blocking element 27 has two laterally projecting sliding blocks 29 with end extensions 33, of which Fig. 1 only one is visible. The sliding blocks 29 are accommodated in respective guide slots 30, 31, which are formed in the plate 14. The guide slots 30, 31 are spaced apart from each other with respect to the displacement direction 28, as shown. While the Fig. 1 The first guide slot 30 located on the right extends completely straight in the direction of displacement 28, Fig. 1 The second guide slot 31 located on the left has a sliding section 42 extending in the sliding direction 28 and additionally a pivoting section 43 extending in the closing direction 21, which is formed here by a bulge of the sliding section 42 at the end region 44 of the second guide slot 31 facing away from the first guide slot 30. The sliding section 42 of the second guide slot 31 is aligned with the first guide slot 30.

[0034] If the Fig. 1 If the sliding block 29 of the locking element 27 located on the left is in the sliding section 42, the locking element 27 can be moved in a fixed orientation relative to the base unit 13. If, on the other hand, the Fig. 1 If the sliding block 29 on the left is located in the pivoting section 43, a slight pivoting of the locking element 27 relative to the base unit 13 is possible.

[0035] A contact element 45 is also mounted on the base unit 13, which is in an initial position as in Fig. 2 can be seen extending through the locking receptacle 19. In the illustrated embodiment, the contact element 45 is designed as a rod or bar. Two guide pins 49 projecting from the contact element 45 are received in control links 51 of the hood 15 and are thereby guided on the base unit 13. In the illustrated embodiment, each of the control links 51 has two inclined guide sections 52, 53 that are differently inclined relative to the closing direction 21 and a straight guide section 54 that runs in the closing direction 21.

[0036] The contact element 45 further comprises a lateral projection 55 ( Fig. 1 ), which rests on the locking element 27 and thus forms a driver for the locking element 27 with respect to the displacement direction 28.

[0037] In addition to the locking element 27 and the contact element 45, a transmission element 57 is also displaceably mounted on the base unit 13. The transmission element 57 has two guide elements 58, which are slidably received in a matching guide recess 59 extending in the closing direction 21. Accordingly, the transmission element 57 is displaceable in the closing direction 21 between two end positions. Fig. 2 The transmission element 57 is shown in a middle position between the end positions. A leg spring 61 inserted into the base unit 13 is provided to move the transmission element 57 in the direction of the Fig. 2 to the left end position.

[0038] Fig. 3 shows a sequence of states that the assembled lock 11 assumes one after the other when the window sash is closed. Initially, the locking element 27, as can be seen in the first image from the left, is in the release position, in which the retraction opening 23 is not blocked by the locking element 27. The contact element 45, on the other hand, is located directly in the retraction opening 23. The transmission element 57 is shown in a central position here, but in the relevant state of the lock 11, it is actually pressed by the leg spring 61 against the stop on the right in the image.

[0039] During the closing process, the locking element 25 first strikes the contact element 45 and presses it into the locking receptacle 19. The contact element 45 moves not only in the closing direction 21, but also transversely thereto, namely in the displacement direction 28, due to the inclined guide sections 52, 53 of the control link 51. By means of the projection 55, the locking element 27 is driven in the displacement direction 28 until it reaches the locking position shown in the second image from the left. In this state, the retaining edge 41 of the locking element 27 engages behind the locking element 25 and holds it in the locking receptacle 19. The guide pins 49 of the locking element 27 are located in the straight guide sections 54 of the control links 51. A hook section 63 formed on the locking element 27 engages with a locking pin 65 of the transmission element 57, so that the locking element 27 is fixed in the locking position.

[0040] Due to the force exerted by the leg spring 61 via the transmission element 57 on the hook section 63, the locking element 27 in the locking position is moved according to Fig. 3 clockwise into the pressing position shown in the second image from the right, with the pivot axis 67 being defined by the lower sliding block 29. As a result of the pivoting, the retaining edge 41 of the locking element 27 acts on the locking element 25, so that the latter moves slightly further in the closing direction 21 relative to the base unit 13. This creates a contact pressure between the window sash and the frame when the lock 11 is installed, which improves the sealing of the window. The separate representations of the two middle images of the Fig. 3 are for better clarity. In fact, the pivoting of the locking element 27 is superimposed on the final part of the displacement process.

[0041] To open the closure 11, the locking mechanism between the transmission element 57 and the locking element 27 is released. For this purpose, an electrically activated actuator 69 is provided which, when activated, is designed to move the transmission element 57 into the position shown in the right-hand image of Fig. 3 shown release position. In the illustrated embodiment, the electrically activatable actuator 69 is a wire made of a shape memory alloy, one end of which is connected to the transmission element 57, for example, is pressed therewith, and the other end of which is fixed to the base unit 13. The electrically activatable actuator 69 can be connected to an electrical energy source and controlled by an electronic control unit, which in Fig. 3 However, this is not shown. For example, the activation of the actuator 69 can be sensor-based, i.e., triggered upon detection of a window handle being grasped. The current-carrying wire made of the shape memory alloy heats up and contracts, thereby pulling on the transmission element 57.

[0042] When the locking mechanism is released, the locking element 27 can be moved back into the release position by the force exerted by the user on the window sash, thereby releasing the retraction opening 23 and allowing the locking element 25 to be pulled out of the locking receptacle 19. The conversion of the manual force exerted on the locking element 25 against the closing direction 21 into a movement of the locking element 27 against the displacement direction 28 is supported by the retaining edge 41, which runs diagonally in sections. Furthermore, a control surface 50 formed on the locking element 27 and running diagonally to the displacement direction 28 supports the return movement of the contact element 45 to the starting position.

[0043] In particular, the arrangement of the guide links 30, 31, the sliding blocks 29, the contact element 45, the transmission element 57 and the leg spring 61 forms a control mechanism which pivots the locking element 27 into the contact pressure position during or after a locking displacement.

[0044] In the Fig. 4 bis 7 An alternative embodiment of a closure 11' according to the invention is shown. Fig. 4 The closure 11' shown in exploded view has, like the one previously referred to in Fig. 1-3 The closure 11 shown comprises a base unit 13 with a plate 14 and a hood 15 as well as a locking element 27, wherein the hood 15 defines a locking receptacle 19.

[0045] The locking element 27 is mounted in the base unit 13 via sliding blocks 29 so that it can be displaced and pivoted, and can be moved by displacement between a release position that exposes the insertion opening 23 of the locking receptacle 19 and a blocking position that blocks the insertion opening 23. The guide links 30, 31 are not formed in the plate 14 here, but rather in the hood 15. Furthermore, both guide links 30, 31 have both sliding sections 42 and pivoting sections 43. The pivoting sections 43 extend, as shown, in opposite directions from the respective end regions of the sliding sections 42.

[0046] The recess 37 also has in the embodiment according to Fig. 4-7 a run-up slope 39 for the locking element 25 and a retaining edge 41 for engaging behind the locking element 25 received in the recess 37.

[0047] A contact element is in the embodiment according to Fig. 4-7 not provided. Rather, the locking element 25 entering the recess 37 first comes into contact with the run-up slope 39.

[0048] In the base unit 13, the Fig. 4-7 An electric motor 75 is housed in the closure 11' shown, which is coupled via a self-locking spindle drive 77 to a slide 79 which is displaceable in the displacement direction 28. On the slide 79, an inclined surface 80 is formed, which, as in Fig. 6 recognizably, a counter-inclined surface 81 of the locking element 27 is acted upon. Upon displacement of the carriage 79 in the displacement direction 28, the locking element 27 is thus carried along. Accordingly, by activating the electric motor 75, the locking element 27 can be moved from the release position into the locking position. It is understood that the electric motor 75 can be connected to an electrical energy source and an electronic control device, which is described in the Fig. 4-7 but is not shown.

[0049] Fig. 7 shows a sequence of states that the mounted lock 11' assumes successively when the window sash is closed. Initially, the locking element 27 is in the release position (not shown), in which the entry opening 23 is unlocked. When the locking element 25 acts on the run-up slope 39, the locking element 27 is then displaced towards the locking position until the retaining edge 41, as shown in the left image, Fig. 7 The electric motor 75 is then activated, causing the carriage 79 to move in the direction of displacement 28, taking the locking element 27 with it until it has reached the locking position (middle image of Fig. 7 ). The activation of the electric motor 75 could be sensor-based, for example, upon detection of a window handle being grasped.

[0050] When the sliding blocks 29 have reached the pivoting sections 43 of the guide links 30, 31, the locking element 27 in the locking position is moved by the motor force according to Fig. 7 pivoted counterclockwise into the pressing position shown in the right-hand image, whereby the retaining edge 41 of the locking element 27 acts on the locking element 25 and pushes it further in the closing direction 21, whereby, when the lock 11' is installed, a contact pressure is generated between the window sash and the frame. The movement component pointing transversely to the displacement direction 28, which is required for pivoting, is achieved by the interaction of the inclined surface 80 of the carriage 79 with the counter-inclined surface 81 of the locking element 27 in conjunction with the freedom of movement provided by the pivoting sections 43 of the guide links 30, 31. After pivoting the locking element 27, the electric motor 75 can be de-energized, whereby the contact pressure state is maintained due to the self-locking spindle drive 77.

[0051] To open the lock 11', the electric motor 75 is operated in the reverse direction. The locking element 27 is moved back to the release position by the force exerted by the user on the window sash, thereby releasing the retraction opening 23 and allowing the locking element 25 to be pulled out of the locking receptacle 19.

[0052] In the embodiment according to Fig. 4-7 In particular, the arrangement of the guide links 30, 31, the sliding blocks 29, the electric motor 75, the spindle drive 77 and the carriage 79 forms a control mechanism which pivots the locking element 27 into the pressing position during or after a locking displacement.

[0053] The invention provides a simply constructed closure 11, 11' with a displaceable locking element 27, which enables improved sealing of a window, a door or the like. Bezugszeichenliste:

[0054] 11, 11'Lock 13Base unit 14Plate 15Cover 19Latch receiver 21Closing direction 23Inlet opening 25Latch element 27Locking element 28Sliding direction 29Sliding block 30First guide slot 31Second guide slot 33Extension 37Recess 39Bevel 41Retaining edge 42Sliding section 43Pivoting section 44End area 45Contact element 49Guide pin 50Control surface 51Control slot 52Inclined guide section 53Inclined guide section 54Straight guide section 55Protrusion 57Transmission element 58Guide element 59Guide recess 61Leg spring 63Hook section 65Locking bolt 67Pivoting axis 69Actuator 75Electric motor 77Spindle drive 79Slide 80Inclined surface 81Counter-inclined surface

Claims

1. A closure (11, 11') for securing a movable element, in particular a window sash, to a stationary element, in particular a window frame, as required, comprising: a base unit (13) and a locking element (25), wherein the base unit (13) is designed for attachment to the stationary element and the locking element (25) is designed for attachment to the movable element, or vice versa, wherein the base unit (13) has a locking receptacle (19) into which the locking element (25) can be inserted in a closing direction (21) when the movable element is moved towards the stationary element, and a blocking element (27) mounted on or in the base unit (13), which can be moved transversely to the closing direction (21) between a release position releasing a retraction opening (23) of the locking receptacle (19) and a blocking position blocking the retraction opening (23) of the locking receptacle (19). is movable,wherein the locking element (27) is pivotable and the closure (11, 11') comprises a control mechanism which is designed to pivot the locking element (27) into a contact position during or after a displacement of the locking element (27) into the blocking position such that a retaining edge (41) of the locking element (27) acting on the locking element (25) further moves the locking element (25) relative to the base unit (13) in the closing direction (21) in order to generate a contact pressure between the movable element and the stationary element.

2. Closure according to claim 1, wherein the control mechanism has a conversion device (39, 45) by means of which the locking element (27) can be automatically moved from the release position towards the locking position by a movement of the movable element in the closing direction (21) when the closure (11, 11') is mounted.

3. Closure according to claim 2, wherein the transfer device has a run-up slope (39) formed on the blocking element (27) for the locking element (25).

4. Closure according to claim 2 or 3, wherein the conversion device has a contact element (45) which extends through the locking receptacle (19) and is coupled to the locking element (27) via a driver device (55), wherein the contact element (45) is guided by at least one inclined guide (51) of the base unit (13) which runs obliquely to the closing direction (21).

5. Closure according to one of the preceding claims, wherein the control mechanism comprises that the blocking element (27) is mounted on or in the base unit (13) by means of at least two guide slots (30, 31) and sliding blocks (29) guided in these, wherein at least one guide slot (31) comprises a sliding section (42) extending transversely to the closing direction (21) and a pivoting section (43) extending in the closing direction (21).

6. Closure according to claim 5, wherein the pivoting portion (43) is arranged at an end region (44) of the sliding portion (42) in the direction of the locking position.

7. Closure according to claim 5 or 6, wherein the blocking element (27) is mounted on or in the base unit (13) by means of exactly two guide slots (30, 31) and sliding blocks (29) guided in these, wherein the two guide slots (30, 31) are spaced apart from one another transversely to the closing direction (21) and have mutually aligned sliding sections (42).

8. Closure according to claim 7, wherein one of the two guide slots (30) extends exclusively transversely to the closing direction (21) or wherein the two guide slots (30, 31) have respective pivoting sections (43) which extend in opposite directions from respective end regions (44) of the sliding sections (42).

9. Closure according to one of the preceding claims, wherein the control mechanism comprises a spring device (61) which directly or indirectly acts on the locking element (27) located in the locking position in the direction of the pressing position.

10. Closure according to claim 9, wherein the control mechanism comprises a transmission element (57) which cooperates with the locking element (27) and which is displaceable between a blocking position holding the locking element (27) in the pressing position and a release position allowing the locking element (27) to pivot back from the pressing position, wherein the spring device (61) acts on the transmission element (57) in the direction of the blocking position.

11. Closure according to claim 10, wherein the transmission element (57) can be locked to the locking element (27) and the locking is released when the transmission element (57) is in the release position.

12. Closure according to claim 10 or 11, wherein the closure (11) comprises an electrically activatable actuator (69) which is designed to move the transmission element (57) into the release position upon activation.

13. A closure according to claim 12, wherein the electrically activatable actuator (69) comprises a shape memory alloy element connected to the transmission element (57) and connectable to an electrical energy source.

14. Closure according to one of the preceding claims, wherein the control mechanism comprises an electric motor (75) which, upon activation, is designed to act on the blocking element (27) directly or indirectly in such a way that it moves from the release position into the blocking position and / or that it pivots into the pressing position.

15. A closure according to claim 14, wherein the electric motor (75) is connected to the locking element (27) via a self-locking gear device (77).

Images