EP2994011B1 - Drawer slide - Google Patents

Description

The invention relates to a pull-out guide for a movable furniture part, in particular a drawer, with a guide rail which can be fixed to a furniture body and a running rail mounted so as to be movable relative thereto, a coupling element being arranged on the running rail, which interacts with a corresponding coupling element arranged on the furniture part, around which To connect furniture part with the running rail. At least one adjusting device for shifting the position of the coupling element relative to the running rail in at least one spatial direction is arranged on the running rail. The invention further relates to a system comprising 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 running rail can be connected to one another by means of coupling elements.

Such pull-out guides, in which the running rail, which is preferably supported by roller bearings, can easily be moved with respect to the guide rail even under higher loads, are often used, among other things, to guide furniture drawers, for example living room furniture or kitchen furniture. The running rail can be moved directly on the guide rail or using a center rail which is mounted so as to be movable both relative to the guide rail and relative to the running rail.

Usually, the pull-out guides, which are usually used in pairs, are first attached to the furniture body and the movable furniture part, for example the drawer, is then connected to the running rails, preferably locked in place without tools. For this purpose, an insertion mandrel is usually arranged on the running rail in the rear area of the running rails. In the front area of the running rail, a coupling element is usually provided which cooperates with a correspondingly configured corresponding coupling element on the furniture part in such a way that the furniture part is fixed on the running rail. The coupling element on the running rail can be, for example, a tab or a pin or also a recess into which a latching element arranged on the furniture part engages as a corresponding coupling element. The previously mentioned insertion mandrel in the rear area of the running rail does not initially secure the furniture part in all directions on the running rail - for example, the insertion mandrel does not secure against the furniture part being pulled off towards the front. The connection of the coupling elements in the front area of the running rail then fixes the furniture part completely to the running rail. The connection is preferably designed to be latching and releasable again.

The pamphlet DE 20 2009 004 225 U1 describes a pull-out guide for a piece of furniture that is provided with holes and is placed on the insertion mandrels of the pull-out guide. In this pull-out slide, an adjustment device is integrated into the running rail, which enables the height of a front insertion mandrel to be adjusted. This pull-out guide can also be used to adjust the height of a simply designed drawer.

In most cases, however, the corresponding coupling element is not formed directly on the furniture part, but is part of a connecting device that is fixed on the movable furniture part. The connecting device can, for example, be screwed onto the furniture part or is pushed into a recess in the furniture part, again latching if necessary.

From the pamphlet US 2004/0239219 A1 a pull-out guide, for example for drawers, is known in which an insert is pushed into the end of a running rail. An adjustment device is integrated in the insert, on which a coupling element, to which the drawer can be attached, is arranged so that it can be adjusted in height and side. In this way, space within the running rail is used for height or lateral adjustment. However, only a height or lateral adjustment that is relatively limited in terms of its adjustment range can be arranged in the limited installation space of the running rail.

Alternatively, adjusting elements are often arranged in the connecting device. These adjustment elements make it possible to adjust the coupling element of the connecting device in one or more spatial directions relative to the furniture part on which the connecting device is fixed.

For example, from the publication WO 2012/079793 A1 a connecting device is known in which an adjustment in the extension direction is possible. Such an adjustment mechanism can be used, for example, to adjust the depth of a drawer front when the drawer is retracted, without having to change the attachment of the pull-out guide to the furniture body. A height and / or lateral adjustment of the coupling element of the connecting device and thus of the movable furniture part can also be provided.

In particular, when a connecting device offers adjustment options for several spatial directions, the construction of such a connecting device becomes expensive and mechanically complex and, under certain circumstances, can no longer be implemented in the desired compact design.

It is therefore an object of the present invention to provide a pull-out guide and a system comprising a pull-out guide and a connecting device, in which adjustment of the moving furniture part is possible even with the simplest configuration of the connecting device and the adjusting device.

This object is achieved by a pull-out guide and a system comprising a pull-out guide and a connecting device with the respective features of the independent claims. Advantageous refinements and developments are the subject of the dependent claims.

A pull-out guide according to the invention of the type mentioned at the beginning is characterized in that the coupling element is displaceable in the pull-out direction of the pull-out guide relative to the running rail and thus serves to adjust the depth of the furniture part. A displaceability of the coupling element in the extension direction, that is to say in the direction of the longitudinal extension of the running rail, can be implemented particularly well in the design of the extension guide.

In a further advantageous embodiment of the pull-out guide, the coupling element is formed on or on a slide of the adjusting device, the slide being guided displaceably in at least one spatial direction. A slide that is used is guided in the direction of the longitudinal extension of the running rail, that is to say, for example, can be guided along the running rail.

In this way, the possibility of adjusting the relative position of the running rail and movable furniture part to one another is achieved by adjusting means which are also or exclusively arranged on the running rail and not only on or in the connecting device or the furniture part itself. The connecting device or the furniture part can be constructed more simply in this way. The connecting device can be made more compact.

If adjustment possibilities are provided in several spatial directions, for example in the extension direction and horizontally transversely and / or vertically transversely to the extension direction, the adjustment mechanisms for the different spatial directions can optionally be divided between the running rail and the connecting device. The space available in the area of the running rail or for the adjustment device can thus be optimally used. Conversely, the space requirement for the adjustment mechanisms can be divided in the best possible way over the available installation space for the adjustment device or the space available in the area of the running rail.

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 a gear mechanism. The adjustment device can preferably have a spindle, a toothed rack or a control cam as the transmission means. The operating wheel can easily be operated by the user, for example with a finger. The preferably step-down gear means, which transmits the actuation to the coupling element, achieves good adjustability and smooth operation.

In a further advantageous embodiment of the pull-out guide, securing means are provided on the running rail in order to secure a connection between the corresponding coupling element arranged on the furniture part and the coupling element. The securing means are preferably latching means, as a result of which the assembly of the furniture part on the pull-out guide is particularly simple.

A system according to the invention comprising a pull-out guide and at least one connecting device is characterized by the use of such a pull-out guide. Since the connecting device does not require an adjustment mechanism for the spatial directions in which the pull-out guide already offers adjustment, it can be designed in a correspondingly mechanically simpler and more compact manner. The advantages mentioned in connection with the pull-out slide result.

In an advantageous embodiment of the system, the connecting device has a coupling element which can be displaced in at least one further spatial direction with respect to a housing of the connecting device. The at least one spatial direction in which the coupling element can be displaced relative to the running rail and the at least one further spatial direction in which the coupling element of the connecting device can be displaced are preferably different spatial directions. The adjustment options for different spatial directions can thus be divided as best as possible with regard to the available space between the adjustment means on the running rail on the one hand and the connecting device on the furniture part on the other hand.

In a further advantageous embodiment of the system, the connecting device has a latching means in order to secure the connection of the coupling element of the connecting device to the coupling element of the running rail. A securing of the connection of the two coupling elements can be arranged on the running rail, but also on the connecting device. Flexible adaptation to the available space can also take place with regard to securing the connection of the two coupling elements.

In a further advantageous embodiment of the system, at least two spaced-apart connecting devices are provided and the running rail of the pull-out guide has at least two spaced-apart coupling elements on. Adjustment mechanisms for several spatial directions can therefore be distributed over several adjustment means per running rail or the associated connecting devices for reasons of limited installation space or to achieve better haptics. For example, the adjustment options for lateral and height adjustment can be provided in the front area and the depth adjustability can be arranged in the middle or rear area of the running rail, for example as a replacement for a plug-in mandrel. However, adjustability for the same spatial direction can also be provided on the individual adjustment means or connection devices in order, for example, to lift or move a furniture part at all support points.

A further advantage results from the coupling of several adjustment means and / or connection devices by coupling elements in order to achieve adjustment or alignment in the same direction or in opposite directions. In one embodiment, for this purpose, at least two spaced apart coupling elements of the running rail are connected via a coupling element for the same or opposite displacement of the position of the coupling elements. In a further embodiment, in which the system has two pull-out guides, at least one coupling element of a connecting device or running rail of the one pull-out guide is connected to the at least one coupling element of a connecting device or the running rail of a spaced-apart pull-out guide for an equal or opposite displacement of the position of the coupling elements via a Coupling element connected.

The invention is explained in more detail below on the basis of exemplary embodiments with the aid of figures.

Fig. 1:

eine perspektivische Darstellung einer Auszugsführung mit einer Verstelleinrichtung in einem ersten Ausführungsbeispiel;

Fig. 2a bis c:

unterschiedliche perspektivische Darstellungen eines Ausführungsbeispiels einer Verstelleinrichtung für eine Laufschiene;

Fig. 3:

eine Draufsicht auf eine Verbindungsvorrichtung zur Verwendung mit einer anmeldungsgemäßen Auszugsführung;

Fig. 4a bis c:

verschiedene Ansichten einer Anordnung aus Auszugsführung, Verbindungsvorrichtung und einem Schubkasten als bewegbarem Möbelteil und

Fig. 5

eine perspektivische Darstellung eines Teils einer Auszugsführung mit einer Verstelleinrichtung in einem zweiten Ausführungsbeispiel.

The figures show:

Fig. 1:

a perspective view of a pull-out guide with an adjusting device in a first embodiment;

Fig. 2a to c:

different perspective representations of an embodiment of an adjusting device for a running rail;

Fig. 3:

a plan view of a connecting device for use with a pull-out guide according to the application;

Fig. 4a to c:

different views of an arrangement of pull-out guide, connecting device and a drawer as a movable furniture part and

Fig. 5

a perspective view of part of a pull-out guide with an adjusting device in a second embodiment.

In Fig. 1 a pull-out guide for movable furniture parts, in particular for drawers, is shown in a perspective schematic illustration.

The pull-out guide comprises a guide rail 10, which can be fixed on the furniture body by means of a mounting bracket 11. For this purpose, the mounting bracket 11 has fastening bores 12, for example. On the guide rail 10, a running rail 20 is guided displaceably in a pull-out direction via rolling elements not visible in the figure, for example balls or rollers. The rolling elements used are preferably held in rolling element cages. One or more such rolling element cages can be provided for a pull-out guide. The running rail 20 can be moved directly on the guide rail 10 or by using a middle rail which is mounted so as to be movable both relative to the guide rail 10 and relative to the running rail 20.

In the illustrated embodiment, the running rail 20 is approximately C-shaped, with it being open downwards and engaging around the guide rail 10.

The pull-out guide shown is usually used in pairs, the two pull-out guides then being fastened at the same height in the interior of a furniture body, for example a kitchen cabinet. A furniture part, for example a drawer, which is mounted displaceably by the pull-out guides, is fixed on the running rails 20 after the pull-out guides have been installed in the furniture body. For this purpose, the running rails 20 usually have an insertion mandrel as a fastening means in the rear section (not shown in the figure). In the front section of the pull-out slide is a upwardly facing coupling element 21 arranged as a fastening means to the furniture part. The insertion mandrel provided in the rear section usually points to the front in the extraction direction. The furniture part can then be placed on the running rails 20 and pushed backwards, the rear insertion mandrel being guided into a corresponding bore in the furniture part. Furthermore, the coupling element 21 engages in a corresponding coupling element which is arranged directly or indirectly on the furniture part. Detachable securing means, for example latching or locking means, can be provided to secure the coupling of the two coupling elements. Instead of the aforementioned insertion mandrel which engages directly in the furniture part, a coupling element 21 can also be provided in the rear region of the running rail 20, which coupling element interacts with a further corresponding coupling element arranged on the furniture part.

According to the application, at least one adjusting device 30 is provided on the running rail 20, which enables the position of the coupling element 21 arranged on the running rail 20 to be adjusted relative to the latter.

The in the embodiment of Fig. 1 Adjusting device 30 shown is in the Fig. 2 reproduced again in more detail in three partial images. Fig. 2a shows the adjustment device 30 in a perspective view in the assembled state, Figure 2b and 2c show perspective exploded drawings of the adjustment device 30, wherein in the Figures 2a and 2b the side facing away from the running rail 20 is looked at and in Figure 2c on the side facing the running rail 20.

In the adjustment device 30 of the Fig. 1 and 2 an angular support 31 is provided, which is fixed to the running rail 20 via fastening means (not shown here). A slide 33 with elongated holes 331 is slidably mounted relative to the carrier 31 and thus to the running rail 20, with guide pins 34 extending through the elongated holes 331, which are fixed in corresponding bores 311, for example threaded bores, of the carrier 31. In the front area of the slide 33, the coupling element 21 is designed in the form of a tab. A section 211 protruding obliquely from the coupling element 21 enables a corresponding coupling element which is fixed on the guided furniture part to be gripped behind. By reaching behind, the coupling elements can be fixed to one another in the vertical direction.

In order to be able to move the slide 33 in the extension direction relative to the carrier 31, an actuating wheel 32 with a corrugated surface is provided, which is pushed onto an axle pin 312 which is located on the carrier 31. In this case, the axis of rotation of the actuating wheel 32 runs transversely to the pull-out direction of the pull-out guide. In the area of the actuating wheel 32, the slide 33 is set outward in a U-shape so that the actuating wheel 32 is positioned between the carrier 31 and the slide 33.

On the side facing the slide 33, a helical control cam 322 is formed on the actuating wheel 32. This is surrounded by two catches 332 of the slide 33 in a U-shape. When the actuating wheel 32 is rotated, the slide 33 follows the control cam 322 accordingly and can be moved back and forth relative to the carrier 31 in the extension direction. The control cam 322 can be viewed as a transmission means which converts a rotary movement of the actuating wheel 32 into a linear movement. In addition to the one shown, alternative configurations of such a transmission means are possible, for example an eccentric arrangement, a plane thread, a combination of toothed wheel and rack or also, as in the exemplary embodiment of FIG Fig. 5 shown a spindle.

On the carrier 31 locking depressions or protrusions 313 are embossed around the axle pin 312, which interact with a locking lug 323 of the actuating wheel 32 (cf. Figure 2c ). The locking lug 323, together with the locking depressions or elevations 313, prevents the actuating wheel 32 from rotating automatically when forces act on the slide 33 in the pull-out direction.

The actuating wheel 32 is easy to operate from below when the movable furniture parts are mounted in order to be able to adjust the furniture part in its depth position. Operation can be carried out, for example, by the user with a finger. When a movable furniture part is inserted, the coupling element 21 can be shifted in the pull-out direction by actuating the actuating wheel 32. In this way, for example, the position of the furniture part in the extension direction, also called the depth position, can be set, for example in order to be able to align drawer fronts with regard to their alignment with one another.

Although possible, there is usually no provision for the coupling element of the pull-out guide to interact with a corresponding coupling element which is formed directly on the movable furniture part. Typically, a connecting device is arranged on the movable furniture part, which provides the corresponding corresponding coupling element for interaction with the coupling element of the pull-out guide.

Such a connecting device 40 is shown in FIG Fig. 3 shown in a perspective view in one embodiment. The Fig. 4 shows in three different views an arrangement of pull-out guide and connecting device 40, inserted in a drawer as an example of a movable furniture part.

The connecting device 40, which can be attached to the movable furniture part with fastening means, here for example screws 50, provides a coupling element 41 which is here designed as a hook and into which the coupling element 21 of the running rail 20 can engage. When the coupling element 21 is pushed in, its exposed section 211 engages the top of the coupling element 41, so that the coupling element 21 and the coupling element 41 are also fixed to one another in the vertical direction.

On the open side of the hook-shaped coupling element 41, a laterally displaceable bolt 43 acted upon by a spring force is arranged, which fixes an inserted coupling element 21 of a running rail 20 in the coupling element 41. Different latching positions can be formed in order to be able to accommodate coupling elements 21 of different lengths. A pivot lever 44 is formed on the connecting device 41 which, when pivoted, pulls the bolt 43 into the connecting device 41, so that the connection of the coupling elements 21 and 41 can be released.

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

Finally, a wedge 45 is also displaceably guided in the housing 47 and can be moved via a slide 46. The wedge 45 is used to adjust the height of the movable furniture part. He slides between the furniture part and Running rail 20 and thus lifts the furniture part depending on the sliding position of the slide 46.

Figure 4a shows in a perspective overview representation the interaction of the pull-out guide according to the application, here designed according to the embodiment of FIG Fig. 1 and 2 , with the in Fig. 3 Connection device shown and a drawer 1 with a drawer front 2 as a movable furniture part. In the Figure 4a the drawer 1 is shown obliquely from below.

The connecting device 41 is fixed to the drawer front 2 with the screws 50. In addition, it rests with its flat underside on a drawer bottom, not shown here. The drawer 1 also has side parts, which are not visible here, into which the drawer base is let and which partially cover the running rail. To insert the drawer 1, it is placed on the running rail 20 and moved in the direction of the closed position. The coupling element 21 of the running rail 20 is then pushed past the bolt 43 into the hook-shaped coupling element 41. For this purpose, the bolt 43 is beveled on the side opposite the coupling element 41 and is pushed into the housing of the connecting device 41 by the coupling element 21. When the coupling element 21 is inserted into the recess of the coupling element 41, the spring-loaded bolt 43 extends again and then locks the coupling element 21 in the recess of the coupling element 41. The drawer is fixed on the running rail 20 accordingly. The coupling element 41, together with the bolt 43, thus forms a locking receptacle for the coupling element 21 of the running rail 20.

By rotating the actuating wheel 32, the coupling element 21 of the running rail 20 can now be adjusted relative to the running rail 20 in the extension direction. The Figures 4b and 4c each show a view of the arrangement from below in two different setting positions of this depth adjustment. The different setting positions result in a different distance d between the drawer front 2 and the front end of the running rail 20.

Independently of this, the lateral position of the drawer 1 can be adjusted by actuating the rotary knob 42 and the height can be adjusted using the slide 46 take place. The adjustment mechanisms for the depth adjustment and the lateral or height adjustment of the movable furniture part are thus divided between the pull-out guide and the connecting device 40 in this arrangement. The available space can thus be optimally used and the connecting device 40 can be designed to be less mechanically complex, since it is not necessary to implement all the adjustment mechanisms for the different adjustment directions in the locking device 40.

In Fig. 5 Another embodiment of a pull-out slide with a running rail 20 and an adjusting means 30 is shown in a perspective view. Only a front section of the running rail 20 of the pull-out guide is shown here.

In the adjustment device 30 of the Fig. 5 an angular support 31 is again provided, which is fixed to the running rail 20 via fastening means (not shown here). In the rear section of the carrier 31, a drum-shaped actuating wheel 32 is rotatably mounted here. The actuating wheel 32 preferably has a non-slip surface, for example a corrugated surface, so that it can be rotated with a finger, for example. The carrier 31 is designed to be open at the bottom in the area of the actuating wheel 32, so that actuation from below is also possible when the movable furniture part, for example the drawer, is fixed on the running rail 20.

In this exemplary embodiment, the axis of rotation of the actuating wheel 32 runs differently than in the one previously shown in the extension direction of the extension guide. Towards the front, a spindle 321 connected to the actuating wheel 32 is formed on the axis of rotation of the actuating wheel 32. This engages in a slide 33 which accordingly has, for example, a threaded hole as a spindle nut. The slide 33 is guided in the pull-out direction so as to be displaceable relative to the carrier 31. For this purpose, it has elongated holes 331 through which guide pins 34 extend, which are fixed in the carrier 31. In the front area of the slide 33, the aforementioned coupling element 21 is designed in the form of a tab.

Here, too, when a movable furniture part is inserted, the coupling elements 21 can be shifted in the extension direction by actuating the actuating wheels 32. The spindle 321 is designed to be self-locking, so that unintentional adjustment is prevented. The combination of spindle 321 and spindle nut can be used as a gear in this context be considered, which converts a rotary movement of the actuating wheel 32 into a linear movement.

List of reference symbols

1

Drawer

2

Drawer front

10

Guide rail

11

Mounting bracket

12

Mounting hole

20th

Running rail

21st

Coupling element

211

Latch / section

30th

Adjusting device

31

carrier

311

Threaded hole

312

Axle bolt

313

Detent depressions or elevations

32

Operating wheel

321

spindle

322

Control curve

323

Locking lug

33

Slider

331

Long hole

332

Carrier

34

Guide pin

40

Connecting device

41

Coupling element

42

Operating knob

43

bars

44

Swivel lever

45

wedge

46

Slider

47

casing

50

screw

d

distance

Claims (13)

1. A pullout guide for a movable furniture part, in particular a drawer (1), having a guide rail (10) fixable on a furniture body and a slide rail (20) mounted so it is movable in relation thereto, wherein at least one coupling element (21) is arranged on the slide rail (20), which interacts with at least one corresponding coupling element (41) arranged on the furniture part, to connect the furniture part to the slide rail (20), and wherein at least one adjustment device (30), for displacing the position of the coupling element (21) in relation to the slide rail (20) in at least one spatial direction, is arranged on the slide rail (20), characterized in that the coupling element (21) is displaceable in relation to the slide rail (20) in the pullout direction of the pullout guide.
2. The pullout guide according to Claim 1, wherein the adjustment device (30) comprises at least one actuating wheel (32), which acts via a gearing means on the coupling element (21).
3. The pullout guide according to Claim 2, wherein the adjustment device (30) comprises a spindle (321), a toothed rack, or a control curve as the gearing means.
4. The pullout guide according to any one of Claims 1 to 3, wherein the coupling element (21) is formed on or at a slide (33) of the adjustment device (30), wherein the slide (33) is guided so it is displaceable in at least one spatial direction.
5. The pullout guide according to any one of Claims 1 to 4, wherein securing means are provided on the slide rail (20), to secure a connection of the corresponding coupling element (41), which is arranged on the furniture part, to the coupling element (21).
6. The pullout guide according to Claim 5, wherein the securing means are catch means.
7. A system made of at least one pullout guide and at least one connecting device (40), which is fastenable on a movable furniture part, in particular a drawer (1), wherein the connecting device (40) and a slide rail (20) of the pullout guide can be connected to one another by means of coupling elements (21, 41), characterized in that the pullout guide is designed according to any one of Claims 1 to 6.
8. The system according to Claim 7, wherein the connecting device (40) has a coupling element (41) that is displaceable in at least one further spatial direction in relation to a housing of the connecting device (40).
9. The system according to Claim 8, wherein the at least one spatial direction, in which the coupling element (21) is displaceable in relation to the slide rail (20), and the at least one further spatial direction, in which the coupling element (41) of the connecting device (40) is displaceable, are different spatial directions.
10. The system according to any one of Claims 7 to 9, wherein the connecting device (40) has a catch means, to secure the connection of the coupling element (41) of the connecting device (40) to the coupling element (21) of the slide rail (20).
11. The system according to any one of Claims 7 to 10, wherein at least two spaced-apart connecting devices (40) are provided and the slide rail (20) of the pullout guide has at least two spaced-apart coupling elements (21).
12. The system according to Claim 11, wherein the at least two spaced-apart coupling elements (21) of the slide rail (20) are in turn connected via a coupling element for a displacement of the position of the coupling elements (21) in the same direction or opposite directions.
13. The system according to any one of Claims 7 to 12, having two pullout guides, wherein at least one coupling element (21, 41) of the connecting device (40) or the slide rail (20) of one pullout guide is connected via a coupling element to the at least one coupling element (21, 41) of the connecting device (40) or the slide rail (20) of a spaced-apart pullout guide for a displacement, in the same direction or opposite directions, of the position of the coupling elements (21, 41).

Images