Device for securing doors and windows

Abstract

Security device for doors and / or windows to prevent unauthorized opening, with - a guidance unit (2) with a movement path (10) having at least one detent mark (9), - a motion unit (3) adjustable along the movement path (10) between an open position and a closed position, comprising a locking unit (11) having a locking element (15) adjustable between a detent position blocking a displacement of the motion unit (3) towards the open position and an out-of-engage position, and a control element (12) adjustable between a blocking position fixing the locking element (15) in the out-of-engage position in the movement path (10) and a release position releasing the locking element (15) to engage the detent mark (9) in the detent position, wherein - the control element (12) is in operative connection with the locking body (15) and is movable with the movement unit (3) and is adjustable when the movement unit (3) is moved relative to the locking body (15) and - the movement unit (3) is designed such that the control element (12) - when the movement unit (3) is moved from the closed position towards the open position by the detent body (15) which is moved by the movement unit (3) and is arranged in the blocking position, - when the direction of movement of the movement unit (3) is reversed towards the closing position relative to the detent body (15) and is arranged in the release position and - is arranged in the blocking position after the movement unit (3) has reached the closed position.

Description

[0001] The invention relates to a safety device for doors and / or windows against unauthorized opening.

[0002] Security devices of the type mentioned above are used to secure doors and windows, in particular house or apartment entrance doors, against unauthorized and unwanted opening by a person standing outside the door or window.

[0003] Security devices against unauthorized opening of doors or windows are known in various designs from the prior art and are used in particular when it is necessary to engage in dialogue with unknown persons standing in front of the door, but it is important to ensure that they do not gain unauthorized access to the living quarters behind the door.

[0004] For example, DE 10 2019 135 814 B3 discloses a system for limiting the opening angle of a door and / or window sash, with an actuating unit having a guide rail arranged outside the pivoting range of the door and / or window sash and a rail body adjustable along the guide rail between a release position and a blocking position with a contact element.

[0005] The contact element extends into the pivot area of ​​the door and / or window sash and can be brought into contact with it. Furthermore, the operating unit includes a drive unit for adjusting the rail body between the release and locking positions. The described system has the disadvantage that, for example, an electrical power source is required to operate the drive unit to secure the door and / or window, and the guide rail requires considerable installation space above the door and / or window.

[0006] From EP 0 962 614 A2, a manually adjustable step locking mechanism for casement windows is known, which ensures that if the casement window is set to a first position at a desired opening angle when opened, it closes due to a gust of wind or similar, but does not open further on its own; if set to a second position at a desired opening angle, the casement window neither opens nor closes on its own; or if set to a third position, the casement window can be opened or closed freely.

[0007] The invention is therefore based on the objective of providing a security device for doors and / or windows that allows quick and compact installation on a door and / or window and secures the door and / or window against unauthorized opening without the need for a drive mechanism.

[0008] The invention solves the problem by means of a safety device with the features of claim 1. Advantageous further developments of the invention are specified in the dependent claims.

[0009] The safety device according to the invention for doors and / or windows against unauthorized opening comprises a guide unit with a movement path having at least one detent mark and a movement unit adjustable along the movement path between an open position and a closed position. Components of the movement unit are a locking unit and a control element, wherein the locking unit has a detent element that is adjustable between a detent position that blocks the movement unit from moving towards the open position and an out-of-engagement position. The control element is adjustable between a blocking position that fixes the detent element in the out-of-engagement position in the movement path and a release position that releases the detent element to engage with the detent mark in the detent position.

[0010] The motion unit is adjustable on and / or within the path of motion, attached to the guide unit. The motion unit can be adjusted along the path of motion, for example, by moving a door or window, typically opening or closing it.

[0011] The path of movement, which may be straight or curved, preferably has a first free area within which the movement unit is movably arranged between the closed and open positions. Within the scope of the invention, the closed and open positions are considered to be the opposite end positions of the movement unit in the path of movement. At least one detent mark is further arranged on the path of movement between the closed and open positions and is preferably designed as a second free area of ​​the guide unit that merges into the path of movement.

[0012] The locking unit is arranged with the detent element on the movement unit. The detent element is adjustable between the detent position and the disengaged position. For this purpose, the detent element is mounted on the locking unit via a hinge, allowing it to move along the movement path towards the detent position, for example, by pivoting. In the detent position, the detent element engages with the detent mark in such a way that the movement unit can only be moved towards the closed position. In the disengaged position, however, the detent element does not engage with the detent mark, allowing the movement unit to be moved both towards the closed position and towards the open position.

[0013] The control element is preferably adjustable between the locking position and the release position on the motion unit in the area of ​​the detent body and is movable along the motion path with the motion unit and adjustable relative to the motion unit. The control element limits the adjustability of the detent body such that, in the locking position, it is fixed in the out-of-engage position in the motion path, particularly in the first free area, and in the release position, it is released to engage the detent mark, so that the detent body can be adjusted from the out-of-engage position to the detent position.

[0014] According to the invention, the movement unit is designed such that the control element - when shifting from the closed position towards the open position in the blocking position, - when the direction of movement is reversed towards the closed position in the release position and - is positioned in the blocking position after reaching the closed position.

[0015] The control element is operatively connected to the detent body, such that the control element is adjustable relative to the detent body when the motion unit is displaced. When the motion unit is displaced from the closed position towards the open position, i.e., in a first direction of movement, the control element is in the locking position. According to the invention, when the motion unit moves in the first direction of movement, the control element engages with the detent body in such a way that the control element is moved along the path of movement by the detent body. When the direction of movement is reversed, i.e., when the movement is reversed into a second direction of movement, the control element is adjusted relative to the detent body and is positioned in the release position, so that the detent body is released for adjustment to a detent mark.Once the closed position is reached, the control element is again in the blocking position.

[0016] The safety device is, for example, mounted on a door or window (hereinafter referred to simply as a door) such that the movement of the door between an open and a closed position is transmitted to the motion unit. When the door is closed, the motion unit is in the closed position and the control element is in the blocking position. This places the locking element in the out-of-engage position along the path of movement. When the door is opened by a person, for example, someone standing behind the door in a living space, the motion unit coupled to the door is moved in the first direction of movement. The control element is operatively connected to the locking element and is also moved in the first direction of movement by the locking element, which is moved by the motion unit.The movement unit is adjusted to the maximum opening position, in which the door is, for example, fully open or the opening angle of the door is only minimally affected.

[0017] If the opening of the door is interrupted and the door is moved slightly in its closing direction, the motion unit is adjusted along its path in the second direction of movement. The control element is moved relative to the detent body into the release position, so that the detent body is free to move into the detent mark. As soon as the detent body passes the detent mark during the movement of the motion unit in the second direction of movement, the detent body moves from the out-of-engage position to the engaged position and is now engaged with the detent mark. The motion unit can no longer be moved in the first direction of movement, so that a second person, for example, standing outside the door, can no longer open the door.If the door is completely closed, the locking element is moved from the locking position to the out-of-engage position, the movement unit to the closing position, and the control element is moved again relative to the locking element from the release position to the blocking position.

[0018] The fact that the movement unit can be adjusted by moving a door enables a simple and cost-effective security device that ensures efficient and motorless access control. The compact design of the security device, especially the guide unit, allows for quick installation on doors and / or windows and can therefore also be installed on existing door and / or window systems.

[0019] According to an advantageous embodiment of the invention, the detent element is adjustable between the out-of-engagement position and the detent position, in operative connection with a control cam arranged on the control element. The control element is preferably made of a plastic material and can have any desired outer contour, e.g., circular, polygonal, or elliptical. The outer contour of the control element is defined by its length and width. Preferably, the control element has a rectangular outer contour, substantially adapted to the shape of the motion unit. This means that the control element has, for example, the same width as the motion unit. Furthermore, the control element is preferably of a sheet-metal type. In the context of this advantageous embodiment of the invention, "sheet-metal type" means that the thickness of the control element is significantly less than its length and / or width.The control cam is preferably a free section and / or, if necessary, a cutout that penetrates the thickness of the control element. The detent element is arranged on or in the control cam such that it can be adjusted between the out-of-engage position and the detent position by the relative movement of the control element to the detent element. In the locked position, the detent element is fixed in its path of movement by its arrangement on the control cam in the out-of-engage position, and in the released position, it is released for adjustment to the detent position at the detent mark. The control cam advantageously enables a cost-effective operative connection between the detent element and the control element. Since the detent element is in operative connection with the control element, it can be designed in any way, e.g., as a milled part.According to an advantageous embodiment of the invention, the locking unit comprises a control bolt arranged in the control track. The detent element preferably has a sheet metal component. This is connected to the control bolt, for example, via a press fit. The control bolt is cylindrical and has, for example, a circular, polygonal, or elliptical cross-section with a diameter of [diameter value missing in original text]. Furthermore, the control bolt is arranged on the locking unit. In addition, the control bolt is arranged in the control track and preferably also on and / or in the path of movement of the guide unit. The control bolt advantageously enables reliable guidance of the movement unit in its path of movement and ensures a simple operative connection between the detent element and the control element.

[0020] According to an advantageous embodiment of the invention, the control cam is designed such that the control bolt is adjustable between a first control position corresponding to the out-of-engage position and a second control position corresponding to the detent position. The control cam has a first free segment, preferably partially congruent with the path of movement, and a second free segment, particularly preferably, that merges into the first segment. The first free segment is preferably arranged parallel to the path of movement. In this advantageous embodiment of the invention, "partially congruent" means that the first free segment has the same width as the path of movement but a significantly shorter length.

[0021] The second free segment of the control track has a polygonal contour, preferably shorter than the first free segment. Furthermore, the second free segment is preferably configured such that the control bolt is adjustable from the path of movement to the detent mark. For example, the second free segment extends from the first free segment to the contour of the detent mark or beyond. The second free segment is also preferably arranged along the length of the first free segment such that it is spaced apart from the two opposite ends of the first free segment. This space is particularly preferably at least as large as the diameter of the control bolt. In addition, both free segments have a width that is preferably at least as large as the diameter of the control bolt.

[0022] In the first control position, corresponding to the out-of-engage position, the control bolt is positioned near one of the two ends of the first free segment such that the detent element and / or the control bolt is held in its path of movement. In the second control position, corresponding to the detent position, the control bolt is positioned in the second free segment such that the detent element is in the detent position and the control bolt engages with the detent marker. The adjustability of the control bolt between the first and second control positions advantageously ensures that the detent element can be reliably adjusted between the detent position and the out-of-engage position.Furthermore, it enables the locking element to withstand higher forces in the locking position due to the control bolt engaging with the locking mark in the second control position, thus advantageously improving the access protection of the safety device.

[0023] The relative movement of the control element to the detent body can, in principle, be achieved in any desired manner, for example, via a magnet arranged on the guide unit and / or the control element. However, according to an advantageous embodiment of the invention, the control element has at least one projection arranged adjacent to the control cam and bearing against the guide unit. The projection can have any shape and is preferably formed integrally with the control element. For example, the projection has a circular, elliptical, or polygonal, e.g., rectangular, cross-section arranged parallel to the control element. Furthermore, the projection preferably extends vertically between the control element and a ridge of projection with which the projection bears against the guide unit.

[0024] The raised section defines the final cross-section of the raised section. The raised section can also have a cross-section that tapers conically up to the raised section. Furthermore, the raised section is arranged next to the control cam, particularly next to the first free segment. Two raised sections are preferably arranged next to the first free segment on the control element. Because the control element rests against the guide unit with the raised section, it is advantageously possible for the locking element and the motion unit to be adjustable within a range defined by the control cam, without the control element moving along with it. This ensures, in a simple manner, that the control element is movable relative to the locking element.

[0025] According to an advantageous embodiment of the invention, the locking unit comprises a base body with a recess for receiving the detent element. The base body can have any desired contour, e.g., a polygonal, preferably pentagonal, shape. Preferably, the base body has a contact element, preferably arranged in the guide unit, e.g., a bendable tab preferably formed integrally with the base body or a projection arranged on the base body. During and / or after the reversal of the direction of movement towards the closed position, or in the second direction of movement, the contact element preferably rests against the control element and enables the control element to move with the movement unit in the second direction of movement after being moved to the release position.Furthermore, a previously described fastening means for mounting the motion unit to a door is arranged on the base body. The base body is also sheet-metal similar to the control element. The recess has a contour adapted to the shape of the locking element, so that the locking element can be received in the recess. Preferably, the base body has essentially the same thickness as the locking element. Moreover, the recess is a free area extending through the thickness of the base body, in which the locking element is received.

[0026] The recess is particularly preferably designed such that the locking element is adjustable between the locked position and the disengaged position. The recess has a first connecting section, which can engage with a second connecting section arranged on the locking element, for the adjustable reception of the locking element. The connection between the two connecting sections is hook-shaped, so that the second connecting section engages in the first connecting section within the recess. This ensures that the locking element is adjustable within the recess between the locked position and the disengaged position. Because the locking element is adjustable between the two positions on the base body within the recess, it is advantageously possible to reduce the installation space required by the safety device mounted on the door.

[0027] According to an advantageous embodiment of the invention, the motion unit has a first high coefficient of friction at a first contact point between the control element and the guide unit, and a second coefficient of friction that is lower than the first coefficient of friction at a second contact point between the control element and the locking unit, preferably the base body.

[0028] In an advantageous embodiment of the invention, a contact point can be either a single contact point or a contact surface with at least two contact points. The first contact surface is preferably arranged between the raised portion of the control element and the guide unit. The second contact point is preferably arranged between a lower surface of the control element, opposite the raised portion, and the base body of the locking unit. One or more first and / or second contact points can be provided. A further first contact point is preferably arranged between a side surface of the control element extending along its length and the guide unit. For example, a further second contact point is arranged between a top surface of the control element, opposite the lower surface, and the guide unit.

[0029] Because the first coefficient of friction associated with the first contact point is higher than the second coefficient of friction associated with the second contact point, the static friction between the control element and the guide unit is higher than the static friction between the control element and the locking unit. As a result, when the motion unit is moved in the first direction of movement, the control element is preferably only moved once, for example, the control bolt is in the first control position at one of the two ends of the first free segment of the control cam and thus moves the control element along with the motion unit. Preferably, the control element is made of a plastic material that, in combination with the material of the guide unit, has a high coefficient of friction.The high static friction between the control element and the guide unit advantageously enables a structurally simple and cost-effective improvement of the relative movement of the control element to the detent body.

[0030] The locking element can be adjusted, for example, electrically or magnetically between the locking position and the disengaged position. According to an advantageous embodiment of the invention, the locking unit has a spring element which, in the release position of the control element, moves the locking element from the disengaged position to the locking position, thus biasing the locking element towards the locking position. The spring element, e.g., a compression spring, is preferably arranged in the recess on the base body. Preferably, the recess has a rib-like section for accommodating the spring element. The spring element is arranged between the locking element and the inner contour of the recess and biases the locking element in the locked position. As soon as the control element is moved to the release position, the spring element moves the locking element from the disengaged position to the locking position.This spring element also adjusts the advantageously provided control bolt from the first control position to the second control position. The spring element advantageously enables the simple and automatic adjustment of the detent body to the detent position.

[0031] According to an advantageous embodiment of the invention, the guide unit has guide grooves on two side parts spaced apart from each other, forming the path of movement. Preferably, the guide unit has at least one first side part and at least one second side part spaced apart from the first. Preferably, the two side parts are spaced apart from each other such that the movement element, the locking unit, and the control element are located between the two side parts.

[0032] A first guide groove is arranged on the first side part, and a second guide groove, identical to the first, is arranged on the second side part. Preferably, the movement path and the detent mark are arranged on the same plane. This allows the movement path and the detent mark to be preferably formed as single surfaces, so that each guide groove has at least one detent mark that transitions into the guide groove. Preferably, the detent element, in particular the control pin, is arranged in both guide grooves. Furthermore, the guide unit preferably has at least one support element arranged between the two side parts. Preferably, the side parts and the support element are designed as sheet metal parts that can be positioned by means of a plug connection and are materially bonded to one another, e.g., by gluing, welding, or brazing.Preferably, the motion unit is arranged in a longitudinal channel within the guide unit, bounded by the side panels. The longitudinal channel is a channel-like cavity located between the side panels and preferably two support elements, in which the motion unit is adjustably mounted. Preferably, the control element is arranged on the base of the motion unit and rests against one of the two side panels with its raised section. The advantageous design of the guide unit with guide grooves and side panels ensures that the motion unit can be reliably and easily adjusted by the movement of the door along its path.

[0033] According to a highly advantageous embodiment of the invention, the movement path features several detent marks arranged at intervals along the movement path between the open and closed positions. The detent marks are preferably arranged at defined intervals along the movement path, for example, on the guide grooves. The number and spacing of the detent marks are freely selectable depending on the desired adjustment options, e.g., for the door's opening angle. For example, at least ten detent marks are arranged at intervals. The more detent marks are arranged along the movement path, the faster the detent element can be moved into the detent position and the control bolt into the second control position.

[0034] When the motion unit is moved in the second direction of movement, the detent element engages in a first detent mark. This blocks the movement unit from moving in the first direction and from moving towards a second detent mark located behind the first detent mark in the direction of the open position. However, further movement of the motion unit in the second direction is not blocked by the detent element engaging in the first detent mark. The detent marks are designed such that as the motion unit moves further in the second direction, the detent element moves from the detent position to the disengaged position. As soon as the detent element passes a third detent mark located in front of the first detent mark in the direction of the closed position, it moves again from the disengaged position to the detent position and engages in the third detent mark.Consequently, when the movement unit is moved in the second direction of movement from the open position to the closed position, the detent element can be brought into engagement with each of the detent marks advantageously arranged along the path of movement.

[0035] Multiple locking marks can be used to ensure, in a highly advantageous way, that the safety device is secured against access by the person standing outside the door at all times while the door is being opened.

[0036] Fastening elements, such as drill holes, are preferably provided on the guide unit and the movement unit for mounting on a door and / or window, or on a frame, such as a door frame. Preferably, in the mounted state, the guide unit is located on the door frame and the movement unit is located above the door. Preferably, a first fastening element is located at one of the two opposite ends of the guide unit and a second fastening element is located on the movement unit. The length of the guide unit is preferably up to half, more preferably up to a quarter, and particularly preferably up to a third of the rebated or flush outer dimension of the door leaf according to DIN 18101.

[0037] The safety device according to the invention can also be part of a safety system. The safety system comprises at least one safety device according to the invention. Preferably, in this case, the safety device is arranged parallel to the door frame on the door frame. Preferably, the movement unit is simply adjusted parallel to the door frame, wherein the movement sequence, which includes opening and closing the door, can be redirected to the safety device according to the invention via other components of the safety system.

[0038] An embodiment of the invention is explained below with reference to the drawings. The drawings show: Fig. 1 an exploded view of a safety device for doors and / or windows; Fig. 2a a top view of the safety device of Fig. 1 with a movement unit arranged in a closed position; Fig. 2b a top view of the movement unit of the safety device Fig. 2a with a control element arranged in a blocking position, a detent element arranged in an out-of-engage position and a control bolt arranged in a first control position; Fig. 3a a top view of the safety device of Fig. 1 and Fig. 2a with the movement unit arranged in an open position; Fig. 3b a top view of the movement unit of the safety device Fig. 3a with the control element arranged in a blocking position, the detent body arranged in the out-of-engage position and the control bolt arranged in the first control position; Fig. 4a a top view of the safety device of Fig. 1, Fig. 2a and Fig. 3a with the movement unit arranged between the closed position and the open position; Fig. 4b a top view of the movement unit of the safety device Fig. 4a with the control element arranged in a release position, the detent body arranged in the out-of-engage position and the control bolt arranged in the first control position; Fig. 5a a top view of the safety device of Fig. 1, Fig. 2a, Fig. 3a and Fig. 4a with the movement unit arranged between the closed position and the open position; Fig. 5b a top view of the movement unit of the safety device Fig. 5a with the control element arranged in the release position, the locking element arranged in a detent position and the control bolt arranged in a second control position;

[0039] In Fig. Figure 1 shows an exploded view of a safety device 1 for doors and / or windows. The safety device 1 comprises a guide unit 2 and a movement unit 3. The guide unit 2 has a first side part 4 and a second side part 5 spaced apart from the first side part 4. Two support elements 6 are arranged between the side parts 4 and 5. The side parts 4 and 5 and the support elements 6 are formed as sheet metal. A first guide groove 7 is arranged on the first side part 4, and a second guide groove 8, aligned with the first guide groove 7, is arranged on the second side part 5. The two guide grooves 7 and 8 form a movement path 10 with several detents 9.

[0040] The motion unit 3 comprises a locking unit 11 and a control element 12. The locking unit 11 has a base body 13 with a detent element 15 arranged in a recess 14 on the base body 13, the detent element having a control bolt 16. The base body 13 has a contact element in the form of a tab 17. The control bolt 16 is arranged perpendicular to the two side parts 4, 5 and in the two guide grooves 7, 8.

[0041] In the recess 14, next to the locking element 15, a spring element in the form of a compression spring 19 is arranged on a rib-like section 18 of the recess 14. The recess 14 has a contour 20 adapted to the locking element 15 and a first connecting section 21. A second connecting section 22, which can engage with the first connecting section 21, is arranged on the locking element 15.

[0042] The detent element 15 is in the recess 14 between each of the detent marks 9. Fig. 5a and Fig. 5b shown rest position and one of the movement path 10 assigned in Fig. The out-of-engage position shown in 2a-4b is adjustable. The detent element 15 is pre-tensioned towards the detent position by the compression spring 19.

[0043] The movement unit 3 is located between one in Fig. 2a and Fig. 2b shown in the closing position and one in Fig. 3a and Fig. The movement unit 3 is arranged in the open position shown in Figure 3b, movable or adjustable along the path of movement 10. In the closed and open positions, the movement unit 3 is arranged at opposite end sections 23, 24 in the path of movement 10. In the closed position, the movement unit 3 is located in a first end section 23, and in the open position, in a second end section 24. The detent marks 9 are arranged at a distance from each other between the two end sections 23, 24.

[0044] The control element 12 is located between a locking element 15 that defines the detent body 15 in the out-of-engage position in the movement path 10 in Fig. 2a-3b shown blocking position and a releasing the detent element 15 to engage a detent mark 9 in the detent position Fig. The release position shown in Figures 4a-5b is adjustable. Furthermore, the control element 12 has a control cam 25 and two projections 26 arranged next to the control cam 25. The two projections 26 are each circular segment-shaped and each has a chord 27 with which the two projections 26 bear against the control element 12. The control cam 25 also has a first free segment 28 and a second free segment 29. The control bolt 16 arranged in the control cam 25 is moved by a relative movement of the control element 12 to the motion unit 3 between a position corresponding to the first free segment 22, or the out-of-engage position. Fig. 2a- 4b shown first control position and one assigned to the second free segment 23, or the detent position in Fig. 5a and Fig. Adjustable in the second control position shown in 5b.

[0045] The motion unit 3 has a first coefficient of friction at a first contact point 30 between the elevation 26 and the first side part 4 of the guide unit 2 and a second coefficient of friction that is lower than the first coefficient of friction at a second contact point 31 between a bottom of the control element 12 and the base body 13.

[0046] A first fastening element in the form of a first bore 32 is arranged on the first side part 4 of the guide unit 2. The base body 13 has a second fastening element in the form of a second bore 33. The guide unit 2 can be attached to a door frame (not shown) above a door (not shown) via the first bore 32, and the movement unit 3 can be coupled to the door via the second bore 33, so that opening the door causes the movement unit 3 to move towards the open position.

[0047] With a locked door, the movement unit 3 is as shown in Fig. 2a and Fig. 2b shows the door in the closed position and the control element 12 in the blocking position. The latching element 15 is thereby in the out-of-engage position in the movement path 10, and the control bolt 16 is in the first control position. Opening the door causes the movement unit 3 to move from the closed position into a first direction of movement towards the [unclear - possibly "the"]. Fig. 3a and Fig. 3b shown open position. The control bolt 16 rests against the control element 12 in the first free segment 28, whereby the detent body 15 is in operative connection with the control element 12 and the control element 12 is also moved in the first direction of movement by the detent body 15 which is moved by the motion unit 3.

[0048] When the direction of movement is reversed into a second direction of movement towards the closed position, the control element 12 is forced into the position by the high coefficient of friction relative to the base body 13 or to the detent body 15. Fig. 4a and Fig. The release position shown in 4b is adjusted. After being adjusted to the release position, the control element engages with the tab 17, so that the control element 12 moves along with the motion unit 3. As soon as the detent body 15 passes a detent mark 9 with the control bolt 16, the detent body 15 is moved from the out-of-engage position to the detent position and the control bolt 16 is moved from the first control position to the second control position (see Figure 4b). Fig. 5a and Fig. 5b). As a result, the detent body 15 engages with the detent mark 9 in the detent position in such a way that the movement unit 3 can only be adjusted in the second direction of movement towards the closed position.

[0049] The detent marks 9 are each designed such that when the motion unit 3 is moved in the second direction of movement, starting from the detent body 15 located in a detent mark 9 in the detent position and the control bolt 16 located in the second control position, the detent body 15 is moved from the detent position to the disengaged position and the control bolt 16 is moved from the second control position to the first control position. This blocks the movement unit 3 from moving in the first direction of movement, i.e., towards the opening position. Further movement of the motion unit 3 in the second direction of movement is not affected. As soon as the detent body 15, together with the control bolt 16, passes another detent mark 9 in the direction of the closing position, the detent body 15 is again moved from the disengaged position to the detent position and the control bolt 16 is moved from the first control position to the second control position.This causes the detent element 15 to engage with this detent mark 9. Consequently, when the movement unit 3 is moved in the second direction of movement from the open position to the closed position, the detent element 15 can be brought into engagement with any detent mark 9 arranged along the movement path 10.

[0050] When the door closes, the latching element 15 moves from the latching position to the out-of-engage position, the control bolt 16 moves from the second control position to the first control position, and the motion unit 3 moves to the closed position. Once the closed position is reached, the control element 12 is in the blocking position (see figure). Fig. 2a and Fig. 2b).

[0051] Adjusting the movement unit 3 by moving a door enables a simple and cost-effective safety device 1, which, due to its compact design, especially of the guide unit 2, can be quickly mounted on a door. Reference symbol list 1 safety device 2 Command Unit 3 movement units 4 first side panel 5 second side panel 6 support elements 7 first leading groove 8 second guide groove 9 rest mark 10 Movement path 11 Locking unit 12 Control element 13 Base body of the locking unit 14 recess 15 locking elements 16 control bolts 17 tab 18 rib-like section 19 Compression spring 20 Contour of the recess 21 first connecting section 22 second connecting section 23 first final section 24 second final section 25 Tax backdrop 26 Survey 27 Circular chord 28 first free segment 29 second free segment 30 first point of contact 31 second contact point 32 first bore 33 second bore

Claims

[1] Security device for doors and / or windows against unauthorized opening, with - a guidance unit (2) with a movement path (10) having at least one detent mark (9), - a motion unit (3) adjustable along the movement path (10) between an open position and a closed position, comprising a locking unit (11) having a locking element (15) adjustable between a detent position blocking a displacement of the motion unit (3) towards the open position and an out-of-engage position, and a control element (12) adjustable between a blocking position fixing the locking element (15) in the out-of-engage position in the movement path (10) and a release position releasing the locking element (15) to engage the detent mark (9) in the detent position, wherein - the control element (12) is in operative connection with the locking body (15) and is movable with the movement unit (3) and is adjustable when the movement unit (3) is moved relative to the locking body (15) and - the movement unit (3) is designed such that the control element (12) - when the movement unit (3) is moved from the closed position towards the open position by the detent body (15) which is moved by the movement unit (3) and is arranged in the blocking position, - when the direction of movement of the movement unit (3) is reversed towards the closing position relative to the detent body (15) and is arranged in the release position and - is arranged in the blocking position after the movement unit (3) has reached the closed position. [2] Safety device according to claim 1, characterized by, that the detent element (15) is adjustable between the out-of-engage position and the detent position in operative connection with a control cam (25) arranged on the control element (12). [3] Safety device according to claim 2, characterized by , that the locking unit (11) has a control bolt (16) arranged in the control cam (25). [4] Safety device according to claim 3, characterized by , that the control cam (25) is designed such that the control bolt (16) is adjustable between a first control position associated with the out-of-engage position and a second control position associated with the detent position. [5] Safety device according to claim 2, characterized by , that the control element (12) has at least one elevation (26) arranged adjacent to the control cam (25) and adjacent to the guide unit (2). [6] Safety device according to one or more of the preceding claims, characterized by , that the locking unit (11) has a base body (13) with a recess (14) for receiving the locking element (15). [7] Safety device according to claim 6, characterized by , that the recess (14) is designed such that the detent element (15) is adjustable between the detent position and the out-of-engage position. [8] Safety device according to one or more of the preceding claims, characterized by , that the motion unit (3) has a first high coefficient of friction at a first contact point (30) between the control element (12) and the guide unit (2) and a second coefficient of friction that is lower compared to the first coefficient of friction at a second contact point (31) between the control element (12) and the locking unit (11). [9] Safety device according to one or more of the preceding claims, characterized by, that the locking unit (11) has a spring element (19) which, in the release position of the control element (12), moves the detent body (15) from the out-of-engage position to the detent position, so that the detent body (15) is biased towards the detent position. [10] Safety device according to one or more of the preceding claims, characterized by , that on the guide unit (2) on two side parts (4, 5) spaced apart from each other, guide grooves (7, 8) forming the path of movement (10) are arranged. [11] Safety device according to claim 10, characterized by , that the motion unit (3) is arranged in a longitudinal channel in the guide unit (2) which is limited by the side parts (4, 5). [12] Safety device according to one or more of the preceding claims, characterized by, that the movement path (10) has several detent marks (9) arranged at intervals between the open position and the closed position in the direction of movement of the movement unit (3).

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