CN105188479B - Pull-out guides and systems consisting of pull-out guides and connections - Google Patents

Abstract

The invention relates to a pull-out guide for movable furniture, in particular drawers, having a guide rail that can be fixed to the furniture, and a running rail that is mounted so as to be movable relative to the guide rail, wherein at least one coupling element is arranged on the running rail, which at least one coupling element interacts with at least one corresponding coupling element arranged on the furniture in order to connect the furniture to the running rail. The pull-out guide is characterized in that at least one adjusting device is arranged on the running rail for displacing the position of the coupling element in at least one spatial direction relative to the running rail. The invention also relates to a system consisting of at least one such drawer guide and at least one connecting device which can be fastened to a movable piece of furniture, in particular a drawer, wherein the connecting device of the drawer guide and the running rail can be connected to one another by means of a coupling element.

Description

Pull-out guides and systems consisting of pull-out guides and connections

technical field

The invention relates to a pull-out guide for movable furniture parts, in particular drawers, having a guide rail fixable on the furniture body and a slide mounted so as to be movable relative to the guide rail. A rail, wherein a coupling element is arranged on the slide rail, said coupling element interacting with a corresponding coupling element arranged on the furniture part to connect the furniture parts of the slide rail. The invention also relates to a system consisting of a pull-out guide and at least one connecting device, which can be fastened to a movable furniture part, wherein the connecting device and the slide rail can be connected to each other via a coupling element connect.

Background technique

Such pull-out guides are frequently used especially for guiding drawers of furniture (for example, living room furniture or kitchen furniture), in which slide rails, preferably mounted by roller bearings, are used even under greater loads. The case can be easily moved relative to the guide rail. In this case, the slide rail can be moved directly on the guide rail or also using an intermediate rail mounted in such a way that it is movable relative to the guide rail and also relative to the slide rail.

The pull-out guides, usually used in pairs, are usually initially fixed to the furniture body, and the movable furniture parts (ie eg drawers) are then connected to the slide rails, preferably snapped together without tools. For this purpose, a plug-in mandrel is usually arranged on the slide rail and in the rear region of the slide rail. Usually arranged in the front region of the slide rail, the coupling elements interact with correspondingly designed corresponding coupling elements on the furniture part in such a way that the furniture part is fixed on the slide rail. The coupling elements on the slide rail can be, for example, plates or pins or grooves, wherein detent elements arranged on the furniture part engage as corresponding coupling elements. The above-mentioned insertion mandrels in the rear region of the slide rail initially do not fix the furniture part on the slide rail in all directions—for example, the insertion mandrels are not secured against the furniture part being pulled out towards the front. After the connection of the coupling element in the front region of the slide rail, the furniture part is completely fixed on the slide rail. The connection is preferably designed to be locked and can be released again.

In this case, the corresponding coupling element is generally not formed directly on the furniture part, but rather is part of a connecting device which is fixed on the movable furniture part. The connecting device can be screwed onto the furniture part, for example, or inserted (optionally relocked) into a recess in the furniture part.

In this case, adjustment elements are frequently arranged in the connecting device, which allow the coupling elements of the connecting device to be adjusted in one or more spatial directions relative to the furniture part on which the connecting device is fastened.

A connecting device is known, for example, from document WO 2012/079793 A1 in which an adjustment in the pull-out direction is possible. For example, the drawer front can be adjusted in the depth of the drawer (where the drawer is retracted) via the adjustment mechanism without the fastening of the pull-out guide on the furniture body needing to be changed. It is also possible to provide a vertical and/or lateral adjustment of the coupling elements of the connecting device and thus adjust the movable furniture part.

In particular, if the connecting device offers adjustment options for several spatial directions, the connecting device becomes structurally and mechanically complex and in some cases may no longer be present in the required compact structure.

Contents of the invention

It is therefore the object of the present invention to provide a pull-out guide and a system consisting of a pull-out guide and a connecting device, wherein the movement of the furniture part can also be adjusted via the simplest embodiment of the connecting device.

This object is achieved by the pull-out guide according to the invention and the system of pull-out guide and connecting device. The pull-out guide is a pull-out guide for movable furniture parts, said pull-out guide having a guide rail that can be fixed on the furniture body and a slide rail mounted so as to be movable relative to said guide rail, wherein at least One coupling element is arranged on the slide rail, the at least one coupling element interacts with at least one corresponding coupling element arranged on the furniture part to connect the furniture part to the slide rail, at least one An adjustment device is arranged on the slide rail for displacing the position of the coupling element relative to the slide rail in at least one spatial direction. The system consists of at least one pull-out guide and at least one connecting device that can be fastened to the movable furniture part, wherein the connecting device and the slide rail of the pull-out guide are connectable to each other via coupling elements. The connecting device and the slide rail of the pull-out guide can be connected to each other via coupling elements.

The advantage mentioned at the outset of the extension guide according to the invention is that at least one adjusting device is arranged on the slide rail, by means of which the coupling element of the slide rail can be adjusted in at least one spatial direction.

In this way, an adjustment option for the relative position of the slide rail and the movable furniture part with respect to each other is realized by an adjustment device which is also (or exclusively) arranged on the slide rail and not only on the connecting device Or in the connecting device or in the furniture part itself. The connecting device or the furniture part can be constructed more simply in this way. The connecting device can be embodied more compactly.

If adjustment options are provided in several spatial directions, for example in the pull-out direction and horizontally and/or vertically in relation to the pull-out direction, then the adjustment mechanisms for different spatial directions can optionally be selected. Assigned to rails and linkages. Thus, the available space in the region of the slide rail or for the adjustment device can be optimally utilized. Vice versa, the space required for the adjustment mechanism can be allocated in the best possible manner to the available space in the area of the installation space or slide rail available for the adjustment device.

In an advantageous embodiment of the pull-out guide, the adjusting device has at least one actuating wheel which acts on the coupling element via gearing means. The adjusting device can preferably have a spindle, a toothed rack, or a control bend as a transmission. The actuation wheel can be conveniently actuated, for example by a user with a finger. Good adjustability and smooth running operation are achieved by the transmission, which preferably has a reduced transmission ratio, and which transmits the actuation to the coupling element.

In a further advantageous embodiment of the pull-out guide, the coupling element is formed on or at the slide of the adjustment device, wherein the slide is guided such that the slide is guided in at least one spatial direction Can be moved. The coupling element is preferably displaceable relative to the slide rail in the pull-out direction of the pull-out guide and thus serves for depth adjustment of the furniture part. The displaceability of the coupling element in the pull-out direction, ie in the direction of the longitudinal extension of the slide rail, can be implemented particularly well in the design of the pull-out guide. In this case, the slide used is guided in the direction of the longitudinal extension of the slide rail and can thus be guided, for example, along the slide rail.

In a further advantageous embodiment of the pull-out guide, fastening means are provided on the slide rail for fastening the connection of the corresponding coupling element arranged on the furniture part to the coupling element. The fastening means are preferably catch means, as a result of which the mounting of the furniture part on the pull-out guide is particularly simple.

The system according to the invention comprising a pull-out guide and at least one connecting device is characterized by the use of the pull-out guide. Since the connecting device accordingly does not require an adjustment mechanism for the spatial orientation, wherein the pull-out guide already provides an adjustment option, it can be designed accordingly mechanically simpler and more compact. The mentioned advantages result from the combination of the pull-out guide.

In an advantageous embodiment of the system, the connecting device has a coupling element which is displaceable in at least one further spatial direction relative to the housing of the connecting device. The coupling element is displaceable relative to the slide rail in the at least one spatial direction, and the coupling element of the connecting device is displaceable in the at least one further spatial direction, which is in relation to the at least one further spatial direction. The directions are preferably different spatial directions. The adjustment options for different spatial directions can thus be allocated in the best possible manner with respect to the available space on the one hand to the adjustment device on the slide rail and on the other hand to the connection device on the furniture part.

In a further advantageous embodiment of the system, the connecting device has snap-in means for securing the connection of the coupling element of the connecting device to the coupling element of the slide rail. The fastening of the connection of the two coupling elements can be arranged on the slide rail, but also on the connecting device. With regard to the fastening of the connection of the two coupling elements, a flexible adaptation to the available spatial conditions can thus also be performed.

In a further advantageous embodiment of the system, at least two spatially spaced connection devices are provided, and the slide rail of the pull-out guide has at least two spatially spaced coupling elements. Due to limited installation space or to achieve a better tactile sensation, the adjustment mechanisms for several spatial directions can be correspondingly distributed on several adjustment devices of each slide rail or on the associated connection devices. Thus, for example, in the front area adjustment options can be provided for lateral adjustment and vertical adjustment as well as in the middle and rear area of the slide rail, eg depth adjustability can be arranged as an alternative for inserting the mandrel. However, the adjustability for the same spatial direction can also be provided, for example, on a single adjustment device or connection device in order to raise or deflect the furniture part at all support points.

A further advantage is achieved by coupling a plurality of adjustment means and/or connection means by means of coupling elements for adjustment or alignment in the same direction or in opposite directions. In one embodiment, for this purpose at least two spatially spaced coupling elements of the slide rail are connected successively via the coupling elements for displacement of the position of the coupling elements in the same direction or in opposite directions. In a further embodiment, in which the system has two pull-out guides, the connecting device or at least one coupling element of the slide rail of one pull-out guide is connected via the coupling element to the connecting device or the spatially separated pull-out guides At least one coupling element of the slide rail for displacement of the position of the coupling element in the same direction or in the opposite direction.

Description of drawings

In the following text, the invention will be explained in more detail on the basis of exemplary embodiments with the aid of the figures.

In the picture:

Figure 1 shows a perspective view of a pull-out guide with an adjustment device of a first exemplary embodiment;

Figures 2a to 2c show different perspective views of an exemplary embodiment of an adjustment device for a slide rail;

Figure 3 shows a top view of the connection device for pulling out guides according to the invention;

Figures 4a to 4c show various views of an arrangement consisting of a pull-out guide, a connecting device, and a drawer as a movable furniture part; and

Fig. 5 shows a perspective view of a part of a pull-out guide with an adjustment device in a second exemplary embodiment.

detailed description

FIG. 1 shows a schematic perspective view of a pull-out guide for a movable furniture part, in particular for a drawer.

The pull-out guide includes a guide rail 10 , and the guide rail 10 can be fixed on the furniture body through a mounting tab 11 . For this purpose, for example, the mounting plate 11 has fastening bores 12 . The slide rail 20 is guided so that it is displaceable in the pull-out direction on the slide rail 10 via rolling bodies (not visible in the drawing), such as balls or rollers, for example. The rolling elements used are preferably held in rolling element cages. One or more such rolling element cages can be provided for the pull-out guide. In this case, the slide rail 20 can move on the guide rail 10 directly or also using an intermediate rail mounted such that it is movable both relative to the guide rail 10 and also relative to the slide rail 20 .

In the exemplary embodiment shown, the slide rail 20 has an approximately C-shape, wherein the slide rail 20 is open towards the bottom and surrounds the guide rail 10 .

The pull-out guides shown are usually used in pairs, where the two pull-out guides are then fastened at the same height in the interior of the furniture body (eg a cabinet). The furniture part (for example, a drawer) is mounted so as to be displaceable by means of a pull-out guide, which is fixed on the slide rail 20 after the pull-out guide is installed in the furniture body. To this end, the slide rail 20 generally has an insert mandrel as fastening means in the rear (not shown in the figures). In the front of the pull-out guide, an upwardly directed coupling element 21 is arranged as fastening means for a furniture part. The insertion mandrel arranged in the rear usually points forward in the pulling direction. The furniture part can then be placed on the slide rail 20 and pushed to the rear, wherein the rear insertion mandrel is guided in a corresponding bore of the furniture part. Furthermore, the coupling elements 21 engage in corresponding coupling elements which are arranged directly or indirectly on the furniture part. In this case, detachable fixing means can be provided to fix the coupling of the two coupling elements, for example snap-fitting means or locking means. Instead of the mentioned plug-in mandrels engaging directly in the furniture part, the coupling element 21 can also be arranged in the rear region of the slide rail 20 , which interacts with a further corresponding coupling element arranged on the furniture part.

According to the invention, at least one adjustment device 30 is provided on the slide rail 20 which enables the position of the coupling element 21 arranged on the slide rail 20 to be adjusted relative to the slide rail.

The adjustment device 30 shown in the exemplary embodiment of FIG. 1 is again shown in more detail in the three partial views of FIG. 2 . Figure 2a shows a perspective view of the adjustment device 30 in an assembled state, Figures 2b and 2c show a perspective exploded view of the adjustment device 30, wherein the viewing angle in Figures 2a and 2b is towards the side facing away from the slide rail 20, and The view in FIG. 2 c is towards the side facing the slide rail 20 .

An angled carrier 31 is provided in the adjustment device 30 in FIGS. 1 and 2 , which is fixed on the slide rail 20 via fastening means (not shown here). A slider 33 having an oblong hole 331 through which guide pins 34 extend, which are fixed to corresponding sides of the carrier 31 , is mounted so as to be displaceable relative to the carrier 31 , and thus relative to the slide rail 20 . In the borehole 311 (for example, a threaded borehole). The coupling element 21 is formed in the form of a plate in the front region of the slide 33 . The portion 211 protruding diagonally from the coupling element 21 engages behind the corresponding coupling element, which is fastened to the guided furniture part. The fixing of the coupling elements relative to one another in the vertical direction can be carried out by engagement at the rear.

In order to move the slider 33 relative to the carrier 31 in the pull-out direction, an actuating wheel 32 with a ribbed surface is provided, which is plugged onto an axle pin 312 on the carrier 31 . In this case, the axis of rotation of the actuating wheel 32 extends transversely to the pull-out direction of the pull-out guide. In the region of the actuating wheel 32 , the slide 33 is flared out in a U-shape, so that the actuating wheel 32 is located between the carrier 31 and the slide 33 .

A helical control bend 322 is formed on the side of the actuating wheel 32 facing the slider 33 . The bend is closed in a U-shape by the two transmission elements 332 of the slider 33 . When the actuating wheel 32 rotates, the slider 33 correspondingly follows the control curved portion 322 and can move back and forth relative to the carrier 31 in the pull-out direction. The control bend 322 can be considered as a transmission, the control bend 322 transforms the rotational motion of the actuation wheel 32 into a linear motion. In addition to the shown embodiment, alternative embodiments of the transmission are possible, for example, an eccentric arrangement shown in the exemplary embodiment of Figure 5, a flat thread, a combination of a pinion and a rack, or also a spindle .

A snap-in recess or snap-in projection 313 , which interacts with a snap-in flange 323 of the actuating wheel 32 (eg FIG. 2 c ), is raised on the carrier 31 around the pin 312 . If a force acts on the slider 33 in the pull-out direction, the snap-in flange 323 together with the snap-in recess or snap-in projection 313 prevents independent pivoting of the actuating wheel 32 . Furthermore, the control bend 322 may be designed to be self-retaining with respect to its pitch and friction relative to the transmission member 332 .

The actuating wheel 32 can be easily operated from below by the installed movable furniture part in order to be able to adjust the furniture part in its depth position. For example, the operation can be performed by the user with a finger. By means of the inserted movable furniture part, the displacement of the coupling element 21 in the pull-out direction can be carried out in each case by actuating the actuating wheel 32 . In this way, for example, the position of the furniture part in the pull-out direction (also referred to as depth position) can eg be adjusted to enable alignment of the drawer fronts with respect to each other.

Although possible, it is generally not provided that the coupling elements of the pull-out guide interact with corresponding coupling elements formed directly on the movable furniture part. The connecting device is usually arranged on the movable furniture part, which provides a suitable corresponding coupling element for interacting with the coupling element of the pull-out guide.

An exemplary embodiment of this connection device 40 is shown in perspective in FIG. 3 . Figure 4 shows three different views of the arrangement of pull-out guides and connection means 40 used in a drawer as an example of a movable furniture part.

The connecting device 40, which can be fixed on the movable furniture part by means of fastening means, for example here screws 50, provides a coupling element 41 which is here formed in the shape of a hook and the coupling element 21 of the slide rail 20 can be engages in the coupling element 41 . By means of the inserted coupling element 21 , whose flared portion 211 engages on the upper side of the coupling element 41 , the coupling element 21 and the coupling element 41 can also be fixed vertically relative to each other.

Arranged on the open side of the hook-shaped coupling element 41 is a laterally displaceable bolt 43 on which a spring force acts, which fixes the inserted coupling element 21 of the slide rail 20 in the coupling element 41 . Various snap-in positions can be formed to be able to accommodate coupling elements 21 of different lengths. A pivot lever 44 is formed on the connection means 41 which, when pivoted, retracts the bolt 43 into the connection means 41 so that the connection of the coupling element 21 and the coupling element 41 can be disengaged.

Furthermore, an actuating handle 42 is provided, which interacts with the coupling element 41 via an eccentric arrangement, so that when the actuating handle 42 is rotated, the coupling element 41 can be laterally displaced.

Finally, a wedge 45 is also displaceably guided in a housing 47 , which can be moved via a slide 46 . The wedge 45 is used for vertical adjustment of the movable furniture part. The wedge 45 is pushed between the furniture part and the slide rail 20 , thereby raising the furniture part according to the sliding position of the slider 46 .

FIG. 4 a shows a perspective overview of the interaction of the pull-out guide according to the invention, which here is designed according to the exemplary embodiment of FIGS. 1 and 2 and has the connection shown in FIG. 3 Device and drawer 1 with drawer front 2 as movable furniture part. In Fig. 4a, the drawer 1 is shown diagonally from below.

In this case, the connecting device 41 is fastened to the drawer front 2 with screws 50 . Furthermore, it rests with a flat underside on the drawer bottom (not shown here). Furthermore, the drawer 1 has a transverse portion (not visible here) in which the drawer bottom is embedded and the slide rails are partially covered by the transverse portion. In order to insert the drawer 1 it is placed on the slide rail 20 and is displaceable in the direction of the closed position. Afterwards, the coupling element 21 of the slide rail 20 is inserted into the hook-shaped coupling element 41 via the bolt 43 . For this purpose, the screw 43 is angled towards the opposite side of the coupling element 41 and is inserted through the coupling element 21 into the housing of the connecting device 41 . When the coupling element 21 is inserted into the groove of the coupling element 41 , the bolt 43 on which the elastic force is applied extends again and then locks the coupling element 21 in the groove of the coupling element 41 . The drawers are correspondingly fixed on the slide rails 20 . Together with the bolt 43 , the coupling element 41 thus forms a locking receptacle for the coupling element 21 of the slide rail 20 .

The coupling element 21 of the slide rail 20 can now be adjusted in the pull-out direction relative to the slide rail 20 via rotation of the actuating wheel 32 . 4a and 4c each show a view from below of the arrangement in two different adjustment positions of the depth adjustment. Different adjustment positions result in different distances d between the drawer front 2 and the front end of the slide rail 20 .

Independently, the adjustment of the lateral position of the drawer 1 can be performed by actuating the rotary handle 42 and the vertical adjustment can be performed by the slide 46 . The adjustment mechanism for the depth adjustment and the lateral or vertical adjustment of the movable furniture part is thus distributed between the pull-out guide and the connecting device 40 in this arrangement. Thus, the available space is optimally utilized and the connection device 40 can be made mechanically less complex, since not all adjustment mechanisms for the different adjustment directions need to be implemented in the locking device 40 .

FIG. 5 shows a perspective view of another exemplary embodiment of a pull-out guide with a slide rail 20 and an adjustment device 30 . Here, only the front part of the slide rail 20 of the pull-out guide is shown.

In the adjustment device 30 of FIG. 5 , an angled carrier 31 is again provided, which is fixed on the slide rail 20 via fastening means (not shown here). A drum-shaped actuating wheel 32 is mounted so that it can rotate here in the rear part of the carrier 31 . The actuation wheel 32 preferably has a grippy (eg ribbed surface) so that it can be rotated eg by fingers. The carrier 31 can be formed open downwards in the region of the actuating wheel 32 so that it can also be actuated from below when the movable furniture part, eg a drawer, is fastened on the slide rail 20 .

In contrast to what was previously shown, in this exemplary embodiment the axis of rotation of the actuation wheel 32 extends in the pull-out direction of the pull-out guide. Towards the front, a spindle 321 connected thereto is formed on the axis of rotation of the actuating wheel 32 . The spindle engages in a slide 33 which accordingly has, for example, a threaded bore as a spindle nut. The slide 33 is guided so that it can be displaced relative to the carrier 31 in the pull-out direction. For this purpose, it has an oblong hole 331 through which a guide pin 34 fixed in the carrier 31 extends. In the front region of the slide 33, the aforementioned coupling element 21 is formed in the shape of a plate.

The displacement of the coupling element 21 in the pull-out direction can here also be carried out (in the case of an inserted movable furniture part) by actuating the actuating wheel 32 . The spindle 321 in this case appears self-inhibiting, so that inadvertent adjustment is inhibited. The combination of the spindle 321 and the spindle nut can be seen in this context as a transmission which converts the rotary motion of the actuation wheel 32 into linear motion.

List of reference signs

1 drawer

2 drawer fronts

10 rails

11 Mounting plate

12 Drilling holes for fastening

20 rails

21 coupling elements

211 Snap-on flange/section

30 Adjustment device

31 carrier

311 threaded drilling

312 pivot pin

313 snap recess or protrusion

32 Actuation wheel

321 mandrel

322 control bend

323 snap-on flange

33 sliders

331 oblong hole

332 transmission parts

34 guide pin

40 connection device

41 coupling elements

42 Actuation handle

43 bolts

44 pivot lever

45 Wedge

46 slider

47 Shell

50 screws

d distance.

Claims (14)

1. a kind of pull-out guide for displaceable furniture parts, the pull-out guide has and can be fixed on furniture sheet Guide rail (10) on body and it is mounted to so as to relative to the mobile slide rail (20) of the guide rail (10), wherein at least one Connection element (21) is arranged on the slide rail (20), and at least one connection element (21) is with being arranged in the furniture parts On at least one corresponding connection element (41) interaction, the furniture parts is connected to the slide rail (20), its It is characterised by, at least one adjusting apparatus (30) is arranged on the slide rail (20), for the phase at least one direction in space Make the displacement of the connection element (21) for the slide rail (20), wherein, the connection element (21) is in the drawing Going out on the pull-out direction of guide can shift relative to the slide rail (20).

2. guide is pulled out as claimed in claim 1, wherein, the adjusting apparatus (30) includes at least one actuator wheel (32), at least one actuator wheel (32) is acted on the connection element (21) via transmission device.

3. as claimed in claim 2 pull out guide, wherein, the adjusting apparatus (30) include mandrel (321), rack or Control bending section as the transmission device.

4. guide is pulled out as claimed any one in claims 1 to 3, wherein, the connection element (21) is formed described On the sliding part (33) of adjusting apparatus (30) or formed at sliding part (33) place of the adjusting apparatus (30), wherein the slip Part (33) is directed to, so as to which the sliding part (33) can shift at least one direction in space.

5. guide is pulled out as claimed any one in claims 1 to 3, wherein, it is provided with fixation on the slide rail (20) Device, with the company of the corresponding connection element (41) of the fixed and arranged on the furniture parts to the connection element (21) Connect.

6. guide is pulled out as claimed in claim 5, wherein, the fixing device is clamping apparatus.

7. guide is pulled out as claimed in claim 1, wherein, the displaceable furniture parts are drawer (1).

8. a kind of filled by least one pull-out guide and at least one connection that can be fastened on displaceable furniture parts The system for putting (40) composition, wherein, the attachment means (40) and the slide rail (20) for pulling out guide pass through connection element (21,41) can be connected to each other, it is characterised in that the pull-out guide is according to any one of claim 1 to 7 Pull out guide.

9. system as claimed in claim 8, wherein, the attachment means (40) have connection element (41), the connection member Part (41) can shift relative to the housing of the attachment means (40) at least one other direction in space.

10. system as claimed in claim 9, wherein, the connection element (21) can be extremely relative to the slide rail (20) Shifted on a few direction in space, and the connection element (41) of the attachment means (40) can be at least one other sky Between square upward displacement, at least one direction in space and at least one other direction in space are different space sides To.

11. the system as any one of claim 8 to 10, wherein, the attachment means (40) have clamping apparatus, with Connection of the connection element (41) of the fixed attachment means (40) to the connection element (21) of the slide rail (20).

12. the system as any one of claim 8 to 10, wherein, it is provided with least two spaced apart companies Connection device (40), and the slide rail (20) for pulling out guide has at least two spaced apart connection elements (21)。

13. system as claimed in claim 12, wherein, at least two spaced apart connection members of the slide rail (20) Part (21) is sequentially connected via connection element, for the connection element (21) position in equidirectional or in the opposite direction On displacement.

14. the system as any one of claim 8 to 10, the system has two pull-out guides, wherein described At least one connection element (21,41) of attachment means (40) or the slide rail (20) for pulling out guide is via connection member Part is connected to the described at least one of the slide rail (20) of the attachment means (40) or spaced apart pull-out guide Element (21,41) is connect, for the position displacement in equidirectional or in the opposite direction of the connection element (21,41).