Functional devices inside passenger vehicles

Abstract

This utility model relates to a functional device for use inside a passenger vehicle, the functional device comprising a functional element (1) and a slider device that guides the functional element during movement along a direction perpendicular to the longitudinal axis (1a) of the functional element, wherein the functional element has two spaced-apart connecting blocks (2a, 2b, 3a, 3b) on its opposite end faces (1b, 1c), the opposite end faces being perpendicular to the longitudinal axis at each of the two ends (1d, 1e) of the functional element, and the two spaced-apart sliders are each guided in one or more fixed guide grooves (4, 4a, 4b) of the slider device.

Description

Technical Field

[0001] This utility model belongs to the field of machinery, and is particularly applicable to equipment for automotive engineering or other passenger transport vehicles. Background Technology

[0002] In passenger vehicles, especially motor vehicles, there are high requirements for comfort and personal safety. On the one hand, the interior / passenger compartment should provide sufficient space; on the other hand, it should provide storage space integrated into the interior, as well as ergonomically designed surfaces, such as surfaces where the hands or remaining parts of the arms can be placed while driving. In any case, the risk of accidents to passengers should be minimized. Comfortable handrails are well-known, such as those integrated into doors or the center console. Also well-known are the combinations of storage options / handrails with storage compartment covers. However, the task of moving such covers or handrails as comfortably and safely as possible between different operating positions has not yet been fully resolved.

[0003] For example, document CN109910768A discloses a storage compartment with a rotating cover for a dashboard in a motor vehicle. Utility Model Content

[0004] In the context of existing technology, the purpose of this invention is to create a solution for guiding functional elements inside a vehicle, which allows for the design of movement paths for functional elements as quickly and safely as possible.

[0005] The features of the main claims solve this problem. The dependent claims provide possible implementations of this solution.

[0006] Therefore, this utility model relates to a functional device for use inside a personnel transport vehicle, the functional device comprising a functional element and a slider device that guides the functional element during movement in a direction perpendicular to the longitudinal axis of the functional element, wherein the functional element has two spaced sliders on its opposite end faces, the opposite end faces being perpendicular to the longitudinal axis at both ends of the functional element, and the two spaced sliders are each guided in one or more fixed guide slots of the slider device.

[0007] The movement of the functional element can be, for example, displacement, rotation, or pivoting perpendicular to the longitudinal axis of the functional element. Complex movement sequences can be achieved and controlled by guiding two sliders on each end face of the functional element within the slider mechanism. This ensures that only the permitted movement patterns of the functional element are possible and guarantees safety by easily preventing the functional element from being lost. Tilt of the functional element can be reliably prevented by providing guide grooves on each end face where the two sliders are guided.

[0008] An advantageous embodiment may be configured such that at least one fixed guide groove is open at one end of its end, allowing the slider to protrude from the guide groove.

[0009] This type of open guide slot provides greater freedom of movement for the functional element, thereby retaining the individual slider in the connector at each end of the functional element, thus preventing the slider from being lost and ensuring safety.

[0010] It can also be configured such that the two end faces of the functional element at least partially overlap with the fixed guide grooves opposite each other, especially the main parts overlap or completely overlap.

[0011] This design of the two fixed guide slots allows the slider to move synchronously at both ends of the functional element, thereby preventing the functional element from tilting.

[0012] Another embodiment may be configured such that each of the fixed guide grooves has a horizontal region and at least one vertical region, the main extension direction of the horizontal region extending horizontally, and the main extension direction of the vertical region deviating from the main extension direction of the horizontal region by at least 45 degrees, particularly at least 60 degrees.

[0013] This horizontal region can be positioned within the vehicle, with its surrounding portion installed within the vehicle, such that when the fixed guide slot is installed, the horizontal region extends substantially horizontally, i.e., parallel to the Earth's surface. This allows the slider to achieve horizontal or substantially horizontal displacement, enabling the functional element to move horizontally or, during rotational movement, to rotate about a longitudinal axis without significant shift in its center of gravity. Therefore, combined displacement and rotational or pivotal movements can be performed, resulting in a 180° rotation of the functional element about the horizontal axis, such that the side of the functional element facing upward at the start of the movement points downward after the 180° rotation. Two vertical regions arranged at the ends of the horizontal region allow, for example, one of the sliders to move upward into the vertical region and then, if necessary, remove from the entire fixed guide slot to achieve pivoting of the functional element. If a vertical region is provided at each end of the horizontal region, and these vertical regions are arranged symmetrically with respect to the horizontal region, the functional element can pivot about a slider in any direction of rotation, or more precisely, about a pair of sliders opposite each other on the end face of the functional element.

[0014] For example, the horizontal region and the vertical region of the fixed guide groove can be configured to connect at the rest position of a slider.

[0015] In the neutral position, the functional element can be arranged such that two sliders located on either side of the functional element are in their rest positions. The functional element can then pivot about each of the two pairs of sliders, which are opposite each other at the ends of the functional element, such that the other pair of sliders moves in the vertical region of the connector and, if necessary, also leaves that vertical region.

[0016] Therefore, another embodiment can be configured such that when two of the sliders are in a stationary position, the functional element is able to rotate or pivot about the sliders and the axis connecting them.

[0017] It can also be configured such that each vertical region of the fixed guide groove has at least one annular cross-section, the center of the annulus being located at a rest position between the corresponding other vertical region and the horizontal region.

[0018] In such a circular cross section, the movable slider can pivot along the circular path about the axis of another slider located at the same end of the functional element, causing that slider to move through the circular cross section of the vertical region.

[0019] Another embodiment may be configured such that the horizontal region of the fixed guide groove has a concave region that protrudes toward the region located between the two vertical regions of the fixed guide groove, particularly by an amount corresponding to the width of the slider.

[0020] This design of the horizontal region of the fixed guide groove keeps the functional element stable, because in order for the functional element to move during rotation, it must be lifted as a whole. This prevents random movement of the functional element.

[0021] In addition to the fixed guide groove, the slider device can also be configured to have a movable slider opposite to each end face of the functional element. Each movable slider has at least one movable guide groove in which the slider is guided. The fixed guide groove and the movable guide groove overlap in segments according to the position of the slider.

[0022] By combining fixed and movable guide slots in a reasonable way, and through the proper design of the two guide slots, it is even possible to control the complex movements of functional elements and sliders within these guide slots. Furthermore, as will be explained in more detail below, it also prevents the two sliders from detaching from the fixed guide slot, thereby preventing the loss of functional elements and ensuring safety.

[0023] It can also be configured such that the movable slider is guided in a displaceable manner along a straight line in a direction perpendicular to the longitudinal axis of the functional element.

[0024] This variant represents a simple way that allows the two guide slots (i.e., a fixed guide slot and a movable guide slot) to move relative to each other in a simple manner. Due to the relative movement of the fixed and movable guide slots, different movement options for the functional element can be released or blocked in different positions. On the one hand, this can release pivoting movement about the slider; on the other hand, this can block another slider on the opposite side of the functional element, or, in the case of the functional element in the opposite pivoting direction, that other slider can be released for pivoting movement, thereby blocking the slider around which the functional element rotates in this case.

[0025] It can also be configured such that the movable slider can be moved by the movement of one or more sliders, and / or the functional element is a handrail and / or a cover for a storage compartment.

[0026] The mounting method of each slider allows it to be easily moved relative to the fixed guide slot by using a slider to move the functional element. This eliminates the need for additional components to drive the slider.

[0027] Another embodiment may be configured such that each slider has a connector movable with the slider, the connector having two vertical regions and a horizontal region disposed between and connected to the two vertical regions, wherein the main extension direction of the vertical region forms an angle of at least 90 degrees, particularly at least 100 degrees or 110 degrees, with the main extension direction of the horizontal region.

[0028] In this configuration, the movable guide groove, like the fixed guide groove, has one horizontal region and two vertical regions. It should be noted that the vertical regions of the movable guide groove should form an angle of several degrees with the vertical regions of the fixed guide groove, for example, at least 5°, at least 10°, or at least 15°. This ensures that the slider moving upward through the vertical region of the fixed guide groove simultaneously applies a force to the movable guide groove through its interaction with the vertical region of the movable guide groove, and thus to the slider, causing the slider to move through this area. This relative movement of the slider with respect to the fixed guide groove then stops the other slider within the guide groove.

[0029] It can also be configured such that the horizontal region of the movable guide groove has a length corresponding to the length of the horizontal region of the fixed guide groove.

[0030] This construction results in exceptionally high stability of the functional element in the horizontal position, where the two sliders at each end of the functional element are horizontally adjacent to each other in a rest position and cannot move horizontally. However, each side of the functional element can be pivoted upwards individually from this position, thereby allowing the slider to move through the vertical region of the fixed guide groove on the pivoted side, and in the process, moving the vertical region of the movable guide groove together with the slider in the horizontal direction. In the horizontal position of the functional element, the two sliders are at rest at the ends of the horizontal region of the fixed guide groove and simultaneously at the ends of the horizontal region of the movable guide groove.

[0031] In addition, the width of the horizontal region of the movable guide groove can be configured to correspond to twice the width of the slider, and the horizontal region of the movable guide groove has a protrusion at each of its two ends, at which the horizontal region of the movable guide groove connects to the vertical region of the movable guide groove. After the fixed guide groove and the movable guide groove are joined together, the movable guide groove protrudes from the horizontal region of the fixed guide groove toward its curved side into the movable guide groove.

[0032] Since each slider can only move horizontally relative to the fixed guide groove, and the fixed guide groove can only move in the horizontal direction, the relative position of the horizontal region of the fixed guide groove does not change in the vertical direction compared to the position of the horizontal region of the movable guide groove. If the slider moves along the horizontal region of the fixed guide groove, the slider will typically move through the upward-curving arch of the horizontal region of the fixed guide groove. The movable guide groove provides the necessary space for the slider with its increased width. Protrusions are provided at both ends of the movable guide groove, extending into the horizontal region of the fixed guide groove, such that a horizontally displaced slider causes one of the protrusions to move outward toward the vertical region at the end of its path, and in doing so, displaces the movable guide groove together with the slider. This displacement of the slider and the movable guide groove allows another slider, which moves outside the connector when the functional element rotates, to enter the relative vertical region of the fixed guide groove and the overlapping vertical region of the movable guide groove. This completes the rotational movement of the functional element, and the slider moves through the vertical regions of the fixed guide groove and the movable guide groove to the horizontal region until both sliders reach their rest positions.

[0033] Another embodiment can be configured such that each slider is guided in a displaceable manner on a slider body having a fixed guide groove, and the fixed guide groove and the movable guide groove are shaped relative to each other and movable, such that when the functional element moves, only a single slider at each end of the functional element can leave the fixed guide groove, and the other slider is held in the fixed guide groove by the combined action of the fixed guide groove and the movable guide groove.

[0034] This is achieved through the shapes of the fixed and movable guide channels, the protrusions on the horizontal region of the movable guide channel, and the angle design that extends the vertical region of the fixed guide channel into the horizontal region and the angle design that extends the vertical region of the movable guide channel into the horizontal region. At these angles, the fixed and movable guide channels can each have a relatively small radius of curvature, which roughly corresponds to the radius of the slider in its cross-section, or, for example, less than twice the radius of the slider's cross-section. Attached Figure Description

[0035] The present invention will be described below based on exemplary embodiments shown in the accompanying drawings, and will be explained in the following text.

[0036] In the attached diagram

[0037] Figure 1 This is a top view of a functional element with a slider.

[0038] Figure 2 This is a front view of the slider body and the slider component with fixed and movable guide grooves.

[0039] Figure 3 and 4 This is a front view of the fixed guide groove and the movable guide groove.

[0040] Figure 5 and 6 This is a view of the slider body and the slider component with hidden edges.

[0041] Figure 7 and Figure 8 This is a view of the slider body and the slider component with specific size markings.

[0042] Figure 9 and Figure 10 It consists of a slider body and a slider component, and compared to other representations, the slider body and slider component each have different dimensional proportions.

[0043] Figure 11 and Figure 12 This is a perspective view of the slider body and the slider component.

[0044] Figure 13 These are the slider body and slider components in their assembled state. The left side view is the side view, and the right side view is the front view.

[0045] Figure 14 , Figure 15 , Figure 16 Fixed and movable guide slots are located at different positions of the slider during the rotational movement of the functional element.

[0046] Figure 17 , Figure 18 , Figure 19 Fixed guide grooves and movable guide grooves that are in other positions of the slider before the rotational movement is completed.

[0047] Figures 20 to 23 It has a combined structure of two fixed guide grooves and two movable guide grooves. Detailed Implementation

[0048] Figure 1 A non-realistic depiction of a functional element 1 in the form of a handrail is shown, which may, for example, be arranged above the center console of a passenger vehicle. The longitudinal axis of the handrail is indicated by 1a and extends parallel to the vehicle's forward direction 19. The entire functional unit, including the handrail-shaped functional element 1, is... Figure 1 The armrest is constructed in a mirror-symmetric manner about the plane indicated by line 20. At the two ends 1c and 1d of the armrest, two sliders 2a, 2b, 3a, and 3b protrude from the two end faces 1b and 1c. Each of these sliders moves through a fixed slider body 18a and 18b with a fixed guide groove and a movable slider 10a and 10b with a movable guide groove. The slider body and sliders are schematically shown only at each end of the functional element 1 and are separated from each other by dashed lines. A more detailed design can be seen in the following figures.

[0049] Figure 1 Two rotational or pivotal axes 12a, 12b are also shown connecting two opposing sliders 2a, 3a and 2b, 3b. The armrest can pivot upward about these pivotal axes, for example, to access a storage compartment located below the armrest, or to rotate the armrest a total of 180° about the longitudinal axis 1a. Sliders 2a, 2b, 3b may, for example, each have the same shape as a pin and have a circular cross-section. The sliders are securely connected to functional element 1, i.e., in this example, to the armrest.

[0050] Figure 2 A front view of the slider body 18a and the slider 10a is shown, with the invisible edges of the body indicated by dashed lines. Figure 2 The overlap between the fixed guide groove 4 and the movable guide groove 11 can be clearly seen. For a more accurate understanding, the slider body 18a and the slider 10a each have... Figure 3 and Figure 4 As shown in the image.

[0051] exist Figure 3 In the slider body 18a, a guide groove 4 with a horizontal region 6 and vertical regions 7 and 8 is shown. 9a and 9b indicate two resting positions of the slider at the end of the horizontal portion 6. The resting positions 9a and 9b are located at the points where the horizontal region 6 meets the vertical regions 7 and 8.

[0052] Figure 3 It is also shown that the fixed guide groove 4 curves upward in a convex shape along the length of the horizontal region 6 toward the region located between the two vertical regions 7 and 8. The vertical regions extend almost perpendicularly to the horizontal regions near the rest positions 9a and 9b. Overall, they have an annular cross-section shape, and further upward, they slope slightly inward toward the horizontal region 6 while widening slightly.

[0053] Figure 4 A movable slider 10a with a guide groove 11 is shown. The guide groove 11 is movable in the horizontal direction relative to the fixed slider body 18a together with the slider 10a. Figure 4 The horizontal region 14 of the movable guide groove 11 and two vertical regions 13a and 13b of the movable guide groove are also shown. The length of the horizontal region 14, measured in the horizontal direction, corresponds to the length of the horizontal region 6 of the fixed guide groove 4. The horizontal region 14 of the movable guide groove 11 is approximately twice the width of the slider. Protrusions 16 and 17 of the slider 10 are provided at the ends of the horizontal region 14, protruding into the horizontal region 14 of the movable guide groove and also protruding into the horizontal region of the fixed guide groove 4 at some locations. The protrusions 16 and 17 are located in the path of the slider during horizontal movement, which is defined by the fixed guide groove 4, and act as the actuator for the slider 10a, thereby allowing subsequent horizontal movement of the slider in the horizontal direction.

[0054] exist Figure 5 and Figure 6 In the image, the slider body 18a and the slider 10a are shown separately again, with the invisible body edges shown in dashed lines.

[0055] exist Figure 7 and Figure 8 In this diagram, the dimensions of the slider are shown both on the slider body 18a and on the slider member 10a. Figure 7 In the diagram, arrow 20 indicates the distance between two sliders 2b, 2a, 3a, 3b arranged adjacent to each other at one end of the functional element. If the dimensions of the fixed guide groove 4 are correctly selected, when the functional element is in the rest position 9b, it can move upward around the sliders in the direction of arrow 21 through the vertical region 7. The other slider moves upward through the vertical region 7.

[0056] Figure 7 α represents the width of the horizontal region of the fixed guide groove, where α corresponds to the width of the slider in cross-section. This means that the fixed guide groove 4 provides sufficient space for the surrounding components (backdrop stones) to slide along the guide groove. The width of the horizontal region 14 of the movable guide groove 11 is... Figure 7 It is shown as 2α.

[0057] exist Figure 8 In order to describe the vertical regions 13a and 13b, their orientation is described as extending upward from both ends of the horizontal region 14 and away from the horizontal region 14, such that the upper ends of the vertical regions 13a and 13b are horizontally offset from the lower ends of the vertical region by the width α of the slider. This corresponds to an angle β of approximately 100°-110° between the vertical and horizontal regions of the movable guide groove.

[0058] Figure 9 and Figure 10 Each shows the ratio of the length of the horizontal region to the length of the vertical region. Figures 1 to 8 The slider body 18a and slider 10a are shown as different slider bodies / slider components. It should be clearly stated that this utility model is not limited to specific dimensions and proportions.

[0059] exist Figure 11 and Figure 12 In the diagram, the slider body 18a and the slider 10a are each shown in perspective. Figure 13 In the image, the fixed slider body 18a and the movable slider 10a are shown in an assembled state, with the movable slider 10a partially surrounding the fixed slider body 18a.

[0060] exist Figure 13 On the left side, a side view of the slider body 18a and the movable slider 10a is shown, while in Figure 13 The right side shows a front view of these two components.

[0061] Figures 14 to 19 The front view shows the slider body 18a, the slider 10a, and two sliders 2a and 2b in different positions. In the overlapping positioning of the various figures, an attempt is made to represent the slider body 18a at the same horizontal position, while the slider 10a is shown at different horizontal positions in the various figures according to its displacement relative to the slider body.

[0062] exist Figure 14 The image shows two sliders 2a and 2b in their rest positions 9a and 9b. This means the functional element / handrail is in a first horizontal position. From this position, the functional element first rotates clockwise around the rest position 9b. The functional element can also rotate in the opposite direction (counterclockwise). Figure 15 In the diagram, the movement is indicated by arrow 22. Slider 2a moves upward through vertical region 7, and due to the angle between the vertical region 7 of the fixed connector and the vertical region 13a of the movable guide groove, slider 10a shifts in the direction of arrow 23, i.e., in... Figure 15The slider shifts to the right. Simultaneously, the protrusion 17 on the slider prevents the slider 2b from moving upwards into the vertical region 8 of the fixed guide groove 4. The functional element is thus held within the slider assembly and can only rotate.

[0063] like Figure 16 As shown, slider 2a can be exposed from the vertical area of ​​the fixed guide groove and the movable guide groove, so that the functional element can be rotated further in the direction of arrow 24.

[0064] Simultaneously, slider 2b can move leftward along the horizontal region 6 of the fixed guide groove toward the vertical region 7 of the fixed guide groove. Slider 2b passes upward through the curved portion of the horizontal region 6.

[0065] The slider 2b can move along the horizontal region 6 of the fixed guide groove 4 until it abuts against the protrusion 16 of the slider 10a, causing the slider to move slightly to the left in its direction of movement. Therefore, with... Figure 17 Compared to the examples in, Figure 18 The slider 10a moves slightly to the left. This movement opens the vertical region 8 of the fixed guide groove of the slider 2a on the right side, and after its pivoting movement, the slider 2a can enter the two vertical regions 8 and 13b of the fixed guide groove and the movable guide groove. Furthermore, the slider 2a can move downwards along the vertical regions 8 and 13b to its rest position 9b. Figure 19 In the example, the two sliders 2a and 2b return to their rest positions, but... Figure 14 Compared to the previous example, the functional element is rotated 180° around its longitudinal axis 1a.

[0066] exist Figure 20 and Figure 21 In the diagram, the fixed slider body 25 and the slider 26 are shown in combination. Figure 21 The invisible edges of the main body are shown as dashed lines. Figure 22 The fixed slider body 25 is shown, which has two vertical regions 25a and 25b with its fixed guide groove. Figure 23 A slider 26 with vertical regions 26a, 26b having movable guide grooves is shown. Clearly, neither the fixed slider body 25 nor the slider 26 has a continuous horizontal region with fixed / movable guide grooves. Therefore, compared to the functions described above, the function of this slider device with the shown elements is limited, such that the functional element 1 can only pivot slightly due to the limited mobility of the slider, but cannot rotate 180°. For example, this movement could be used to open a storage compartment located below the functional element / armrest, optionally on either side of the armrest.

[0067] The construction according to this invention allows for the easy construction of functional devices, such as those with armrests or covers, wherein the armrest-shaped functional element is pivotable and rotatable by 180° and can be held in a restricted manner. The interaction between the slider and the guide groove enables a simple gear structure.

Claims

1. A functional device for use inside a passenger vehicle, the functional device having a functional element (1) and a slider device that guides the functional element during movement in a direction perpendicular to a longitudinal axis (1a) of the functional element, wherein the functional element has two spaced sliders (2a, 2b, 3a, 3b) at its opposite end faces (1b, 1c), the sliders being guided in one or more fixed guide slots (4) of the slider device, the end faces being perpendicular to the longitudinal axis at two ends (1d, 1e) of the functional element.

2. The functional device according to claim 1, wherein At least one of the fixed guide grooves (4) is open at one end of its end, allowing the slider to protrude from the slider device.

3. The functional device according to claim 1 or 2, characterized by The fixed guide groove (4) opposite to each other is at least partially overlapped on the two end faces of the functional element.

4. The functional device according to claim 3, wherein The two end faces of the functional element are overlapped or completely overlapped with the main parts of the fixed guide groove (4) that are opposite each other.

5. The functional device according to any one of claims 1 to 4, characterized by Each of the fixed guide grooves (4) has a horizontal region (6) and at least one vertical region (7, 8), the main extension direction of the horizontal region extends horizontally, and the main extension direction of the vertical region deviates from the main extension direction of the horizontal region by at least 45 degrees.

6. The functional device according to claim 5, wherein The main extension direction of the vertical region deviates from the main extension direction of the horizontal region by at least 60 degrees.

7. The functional device according to claim 5 or 6, characterized by The horizontal region (6) and the vertical region (7, 8) of the fixed guide groove (4) are connected at the rest position (9a, 9b) of a slider (2a, 2b, 3a, 3b).

8. The functional device according to claim 7, wherein When two of the sliders (2a, 2b, 3a, 3b) are in the stationary position (9a, 9b), the functional element (1) is able to rotate or pivot about these sliders and the axis (12a, 12b) connecting them.

9. The functional device according to claim 7 or 8, characterized in that, Each of the vertical regions (7, 8) of the fixed guide groove (4) has at least one annular cross-section, the center of which is located at the rest position (9a, 9b) between the corresponding other vertical region and the horizontal region (6).

10. The functional device according to any one of claims 5 to 9, characterized by The horizontal region (6) of the fixed guide groove (4) has a concave region that protrudes toward the region located between the two vertical regions (7, 8) of the fixed guide groove.

11. The functional device according to claim 10, wherein The concave region protrudes toward the region located between the two vertical regions (7, 8) of the fixed guide groove by an amount corresponding to the width of the slider (2a, 2b, 3a, 3b).

12. The functional device according to any one of claims 1 to 11, wherein In addition to the fixed guide groove (4), the slider device also has movable sliders (10a, 10b) opposite to each of the end faces (1b, 1c) of the functional element (1), each movable slider having at least one movable guide groove (11, 26a, 26b), the slider (2a, 2b, 3a, 3b) being guided in the movable guide groove, the fixed guide groove and the movable guide groove overlapping segmentally according to the position of the slider.

13. The functional device according to claim 12, wherein The movable sliders (10a, 10b) are guided in a displaceable manner along a straight line (15) in a direction perpendicular to the longitudinal axis (1a) of the functional element (1).

14. The functional device according to claim 12 or 13, characterized by The movable slider (10a, 10b) is movable by the movement of one or more sliders (2a, 2b, 3a, 3b), and / or the functional element (1) is a handrail and / or a cover for a storage compartment.

15. The functional device according to claim 12, 13 or 14, characterized by Each slider (10) has a movable guide groove (11, 26a, 26b) that can move together with the slider, the guide groove having two vertical regions (13a, 13b) and a horizontal region (14) arranged between and connected to the two vertical regions, wherein the main extension direction of the vertical region forms at least 90 degrees with the main extension direction of the horizontal region.

16. The functional device according to claim 15, characterized in that, The main extension direction of the vertical region and the main extension direction of the horizontal region form an angle of at least 100 degrees or 110 degrees.

17. The functional device according to claim 15 or 16, characterized by The horizontal region (14) of the movable guide groove (11, 26a, 26b) has a length corresponding to the length of the horizontal region (6) of the fixed guide groove (4).

18. The functional device according to any one of claims 15 to 17, characterized by The width of the horizontal region (14) of the movable guide groove (11, 26a, 26b) corresponds to twice the width of the slider (2a, 2b, 3a, 3b), and the horizontal region (14) of the movable guide groove (11, 26a, 26b) has a protrusion (16, 17) at each of its two ends, at which the horizontal region of the movable guide groove connects to the vertical region (13a, 13b) of the movable guide groove. After the fixed connector and the movable connector are engaged, the movable guide groove protrudes from the horizontal region (6) of the fixed guide groove (4) toward its curved side into the movable guide groove.

19. The functional device according to any one of claims 12 to 18, characterized by Each movable slider (10a, 10b) is guided in a displaceable manner on a fixed slider body (18) having the fixed guide groove (4), and the fixed guide groove and the movable guide groove (11, 26a, 26b) are shaped relative to each other and movable such that during the movement of the functional element (1), only a single slider (2a, 2b, 3a, 3b) at each end of the functional element (1) can leave the fixed guide groove, and the other slider is held in the fixed guide groove by the combined action of the fixed guide groove and the movable guide groove.

Images