Device for guiding movable furniture parts

Abstract

1. An apparatus (1) for guiding a movable furniture part (2), preferably a furniture door, a sliding door or a folding sliding door, in a fixed furniture part (3), preferably a furniture cabinet, comprising at least one guiding system (4) to be attached to the fixed furniture part (3), a support (6) for pivotably supporting or capable of supporting the movable furniture part (2), a compensation device (7) for compensating a tilting moment of the support (6) or of the movable furniture part (2) arranged on the support (6) about a tilting axis by a return moment, the compensation device (7) including at least one cable traction device (8) with at least one cable (8a), and a cable tensioning device (9) for tensioning the at least one cable (8a), the cable tensioning device (9) having a limiting device (10) capable of preventing further tensioning of the at least one cable (8a) when a preset cable tension is reached.

Description

[Technical field]

[0001] The present invention relates to a device for guiding a movable furniture part, preferably a furniture door, a sliding door or a folding sliding door, in a fixed furniture part, preferably a furniture cabinet, having the features of the preamble of claim 1. The invention further relates to furniture comprising such a device, as well as to a method for assembling such a device.

[0002] Devices of the type according to the preamble of claim 1 are already known. A disadvantage of such solutions according to the prior art is that it is very difficult or impossible to check the correct tension of the cable. If the cable is insufficiently or excessively tensioned, this has undesirable effects on the function of the cable traction device. In the worst case, the cable traction device may not function correctly, which may lead to damage to movable and / or fixed furniture parts or furniture.

[0003] Thus, according to the applicant's own not yet published patent application A51103 / 2020, a display device is proposed for displaying the cable tension.

[0004] A drawback of such a solution is that the installer must hold the cable under tension during the entire process of clamping or fastening the cable to the support, which makes one-person installation difficult. Furthermore, the cable can pinch the hands of the person holding the cable under tension.

[0005] The object of the present invention is to provide a device for guiding a movable furniture part, preferably a furniture door, a sliding door or a folding sliding door, in a fixed furniture part, preferably a furniture cabinet, a piece of furniture comprising at least one such device, as well as a method for assembling such a device, which avoids the above-mentioned disadvantages of the prior art and which is improved over the prior art.

[0006] This problem is solved by the features of independent claims 1, 24 and 25.

[0007] Therefore, according to the invention it is envisaged that the cable tensioning device has a limiting device which can prevent further tensioning of the at least one cable when a preset cable tension is reached.

[0008] This eliminates the need for the installer to take care to maintain a given cable tension himself: under sufficient or pre-set cable tension, the installer only needs to tension the cable, as the limiting device automatically prevents further tensioning of the cable.

[0009] Furthermore, there is provided furniture according to the invention comprising at least one fixed furniture part, at least one movable furniture part and at least one device according to any one of claims 1 to 23, preferably the furniture having at least one shaft-shaped cavity in which the at least one movable furniture part can be arranged.

[0010] Furthermore, there is provided a method according to the invention for assembling a device according to any one of claims 1 to 23, comprising the steps of: - in a first method step, at least one guide system is attached to a fixed furniture part, - in a second method step, a support is connected to at least one guide system in a motion-transmitting manner, in a third method step, the cable of the cable traction device is tensioned by a cable tensioning device, and further tensioning of the cable is prevented by a limiting device when a preset cable tension is reached. There is a method in place.

[0011] Further advantageous embodiments of the invention are defined in the dependent claims.

[0012] It may preferably be provided that the cable tensioning device has an operating element for operating the cable tensioning device.

[0013] In this case, it may be particularly advantageous to provide that when a preset operating moment is reached, which is preferably associated with a preset cable tension, the operative connection between the cable tensioning device and the operating element can be interrupted by means of a limiting device.

[0014] This is an uncomplicated and reliable means for preventing further tensioning of the cable after a preset cable tension has been reached.

[0015] Advantageously, it can be provided that the operating element is part of the limiting device, which is advantageous for a compact construction of the cable tensioning device.

[0016] However, other configurations of the operating elements are also conceivable.

[0017] It may be provided that the limiting device has a bearing element in which or on which the operating element can be supported or is supported, such an embodiment also allowing a more compact construction of the cable tensioning device.

[0018] The limiting device can preferably have a connecting element, by means of which the bearing element and the operating element are or can be at least temporarily kinematically connected.

[0019] It is particularly preferred that the limiting device has a force accumulator by means of which the connecting element is or can be loaded with a preset force and / or the connecting element is formed as a force accumulator at least in a specific area, and it can be provided that a preset actuating moment is determined by the force accumulator and / or by the connecting element formed as a force accumulator at least in a specific area.

[0020] This makes it possible to realize a kinematic connection between the bearing element and the actuating element.

[0021] It may particularly be provided that the connecting element is elastically deformable against the action of a force accumulator and / or against the action of a connecting element formed as a force accumulator at least in certain areas when a predefined cable tension is reached, so that the kinematic connection between the bearing element and the operating element can be broken.

[0022] This allows the operating element to be decoupled from the bearing element, so that further manipulation of the operating element does not result in further tensioning of the cable.

[0023] It may also be envisaged that the cable tensioning device has a display device for displaying the tension state of the cable, so that it can be checked whether the cable has already been tensioned.

[0024] It may be advantageously provided that the display device has a display element with the indicator, which allows a simple realization of the display device.

[0025] It may be provided that the cable tensioning device comprises at least one fastening device for fastening at least one cable, which allows an uncomplicated fastening of the cables.

[0026] According to a preferred embodiment, it may be envisaged that in addition to the at least one cable traction device at least one swivel lever mechanism is additionally provided, which comprises at least two swivel levers pivotally connected to one another, which swivel levers can be swiveled relative to one another when the support moves along the stationary furniture part.

[0027] With regard to the method according to the invention, the following step may additionally be carried out before the third method step: - inserting a cable into a cable tensioning device; and - fastening the cable by a fastening device It may be assumed that there is provided

[0028] It may also be envisaged that in an intermediate step at least one of the at least two swivel levers is connected to at least one guide system and / or to a fixed furniture part.

[0029] Advantageously, in a further method step a movable furniture part, preferably a sliding door or a folding sliding door, can be assembled to the support.

[0030] Further details and advantages of the invention are explained in more detail below with reference to the drawings on the basis of the description of the drawings. [Brief description of the drawings]

[0031] [Figure 1] FIG. 1 is a perspective view showing a piece of furniture equipped with the device. [Figure 2a] FIG. 1 is a perspective view showing a part of a piece of furniture equipped with a device. [Figure 2b] FIG. 2b shows detail A of FIG. 2a. [Diagram 3] FIG. 2 is a partially exploded view of the cable tensioning device. [Figure 4a] FIG. 4 is an exploded view of the limiting device and the tension unit. [Figure 4b]FIG. [Figure 4c] FIG. 2 is a perspective view of a bearing element and an operating element. [Figure 4d] FIG. [Figure 4e] FIG. [Figure 5a] 2A-2C are front views of the cable tensioning device during the method steps according to the invention; [Figure 5b] 2A-2C are front views of the cable tensioning device during the method steps according to the invention; [Figure 5c] 2A-2C are front views of the cable tensioning device during the method steps according to the invention;

[0032] In figure 1 a piece of furniture 100 is shown in perspective view, which may have various components, for example a number of compartments in the interior of the furniture 100. The fixed furniture part 3 is formed by a furniture cabinet.

[0033] The furniture 100 has a cavity 101, which is formed by two furniture walls 101a located at a distance from one another. A movable furniture part 2 in the form of a furniture door can be inserted into the cavity 101. When the furniture door is closed, it seals off the interior of the furniture 100.

[0034] A further piece of furniture 102, e.g. a shelf, is connected to and arranged on the furniture 100. When the furniture door is in a closed position and the further piece of furniture 102 is also closed, the furniture door and the further piece of furniture 102 form a consistent furniture front.

[0035] Fig. 2a shows a part of a piece of furniture 100 with the device 1 in a perspective view. For ease of understanding, the second furniture wall 101a of the cavity 101 is not shown. The guide system 4 and the furniture wall 3 are recognizable. The support 6 is also evident. However, in this case one or more further guide systems may also be provided.

[0036] The movable furniture part 3 is pivotably supported on a support 6 via a hinge 6a.

[0037] The compensation device 7 consists of a cable traction device 8 and a swivel lever mechanism 5. The swivel lever mechanism 5 consists of a first swivel lever 5a and a second swivel lever 5b. The first swivel lever 5a is arranged on the fixed furniture part 3 and is slidably arranged on the support 6. The second swivel lever 5b is arranged on the support 6 and is arranged in the middle of the first swivel lever 5a.

[0038] The cable traction device 8 comprises a cable 8a and deflection rollers 8b, which are arranged on the furniture wall 101a and / or on the guide system 4. A cable tensioning device 9 is arranged on the support 6.

[0039] Figure 2b shows detail A of figure 2a. There can be seen the cable tensioning device 9. The cable tensioning device 9 has a casing 9c through which the cable 8a is guided.

[0040] In the lower region, part of a fixing device 9a is shown, by means of which the cable 8a can be fixed to the cable tensioning device 9 and thus to the support 6. The limiting device 10 is also only partially shown.

[0041] 3 shows a partially exploded view of the cable tensioning device 9. The base body 9b can be seen, on which the fastening device 9a is arranged, which is at least partially formed by the base body 9b.

[0042] The fastening device 9a has two clamping jaws which can be screwed together via two screws. The cable can be clamped between the clamping jaws and thus fixed. However, other configurations of the fastening device are also conceivable, such as, for example, spring-loaded clamping elements or clamping elements with teeth.

[0043] The tensioning unit 12 comprises a tensioning element 12b and a contact element 12a. The tensioning element 12b in this case has a moving thread along which a corresponding thread of the clamping element 12a is arranged.

[0044] The tension element 12b is supported on the base body 9b so as to be rotatable but non-slidable, so that the rotation of the tension element 12b results in the clamping element 12a moving in the axial direction of the tension element 12b.

[0045] The limiting device 10 is kinematically connected to the tension element 12b.

[0046] Also shown is a display device 13 which comprises a display element 13a with an indicator 13b and a viewing window 13c. The display element 13a is in this case pivotably supported on the base body 9b.

[0047] The function of the limiting device is explained in more detail below with the aid of figures 4a to 4e, where figure 4a shows an exploded view of the limiting device 10 and the tensioning unit 12, figure 4b shows a perspective view of the limiting device 10, figure 4c shows a perspective view of the bearing element 10a and the operating element 11, figure 4d shows a perspective view of the connecting element 10b and figure 4e shows a cross-section of the limiting device 10.

[0048] The bearing element 10a is substantially rotationally symmetrical. A kinematic connection between the bearing element 10a and the tension element 12b can be formed via the hexagonal shaft end of the tension element 12b and a corresponding receiver (see FIG. 4c) on the bearing element 10a. Of course, any other suitable connection type can be considered here.

[0049] The operating element 11 is supported on the bearing element 10a. Without the connecting element 10b, the operating element 11 can rotate freely on the bearing element.

[0050] The connecting element 10b is of substantially semicircular design and has a connecting pin 10d which passes through an opening 10e in the bearing element 10a and rests against a control contour 11b of the actuating element 11.

[0051] The connecting element 10b is subjected to a force determined by a force accumulator 10c, which likewise has the form of a substantially part-circular spring.

[0052] As a result, an at least temporary motion-transmitting connection is created between the bearing element 10a and the actuation element 11.

[0053] When the operating element 11 is operated, in this embodiment rotated, the bearing element 10a also rotates, and thus the tensioning element 12b, which in turn results in a movement of the contact element 12a.

[0054] In the present embodiment, the operating element 11 has a screw head drive 11a, by means of which the operating element 11 can be operated via a screwdriver.

[0055] If resistance occurs at the contact element 12a, for example due to the cable being tensioned or tensioned, a higher actuation moment, in this case a torque, is required at the actuation element 11 in order to move the contact element 12a further.

[0056] If the actuating moment is sufficiently high, the actuating element 11 slides the connecting pin 10d upwards via the control contour 11b against the action of the force accumulator 10c. The actuating element 11 starts to rotate inside the bearing element 10a.

[0057] If the operating moment is further increased, the operating element 11 rotates further until the connecting pin 10d moves out of the recess in the control molding 11b. Now there is no longer any movement transmission between the bearing element 10a and the operating element 11. Further rotation, i.e. operation, of the operating element 11 does not cause the bearing element 10a to rotate further and therefore no movement of the contact element 12a and therefore no further tensioning of the cable 8a occurs.

[0058] The force exerted by the force accumulator 10c against the movement of the coupling pin 10d out of the opening 10e can be selected so that the coupling pin 10d overcomes the bump 11c exactly when a preset or desired cable tension is reached.

[0059] This makes it possible that the limiting device 10 prevents the at least one cable 8a from being tensioned further when a preset cable tension is reached.

[0060] Between the contact element 12a and the tensioning element 12b, a spring-like element 12c, which can be configured, for example, as an O-ring, can be arranged, the advantage of which is that it prevents the contact element 12a from becoming caught in the tensioning element 12b in the event of incorrect operation of the latter.

[0061] 5a to 5c show front views of the cable tensioning device 9 during method steps according to the invention.

[0062] In Fig. 5a it can be seen that the cable 8a has already been guided through the cable tensioning device 9 and fixed to the basic body 9b by means of the fixing device 9a. The cable 8a has not yet been tensioned in this case, which is indicated by the fact that the contact element 12a has not yet come into contact with the cable 8a.

[0063] The cable is further guided through the display element 13a, in which case the indicator 13b is visible in the viewing window 13c. The display element 13a can be preloaded, for example via a spring, so that the indicator 13b is visible in the viewing window 13c in the untensioned state of the cable.

[0064] In Fig. 5b, the actuating element 5b is actuated so that the contact element 12a is brought into contact with the cable 8a. It is also conceivable that this contact is effected by directly pivoting the bearing element 10a by means of the actuating section 10f.

[0065] It can be seen that the cable 8a is already almost tensioned by the display element 13a, i.e. the display element 13b is pushed downwards by the cable 8a.

[0066] In figure 5b the cable 8a is fully tensioned, the display element 13a has been pushed fully downwards so that the indicator 13b is no longer visible in the viewing window 13c.

[0067] In this figure the maximum displacement of the cable tensioning device 9 is shown. The actual position of the contact element 12a is usually between the position shown in figure 5b and the position shown in figure 5c.

[0068] The actual position of the contact element 12a when the preset cable tension is reached depends on the one hand on the preset cable tension itself, but on the other hand it is also greatly influenced by at what point of the cable 8a the installer fixes the cable 8a in the fixing device 9a.

[0069] It is conceivable for the cable 8a to be provided with appropriate markings indicating the permitted clamping range.

Claims

1. A device (1) for guiding a movable furniture part (2), preferably a furniture door, a sliding door or a folding sliding door, in a fixed furniture part (3), preferably a furniture cabinet, comprising: - at least one guide system (4) to be attached to a fixed furniture part (3), - a support (6) for pivotably supporting or capable of supporting said movable furniture part (2), a compensation device (7) for compensating by a return moment a tilting moment of said support (6) or of said movable furniture part (2) arranged on said support about a tilting axis, said compensation device (7) comprising at least one cable-traction device (8) with at least one cable (8a), a cable tensioning device (9) for tensioning said at least one cable (8a); In an apparatus (1) having the cable tensioning device (9) comprises a limiting device (10) capable of preventing further tensioning of the at least one cable (8a) when a preset cable tension is reached; An apparatus (1).

2. 2. The device according to claim 1, wherein the cable tensioning device (9) comprises an operating element (11) for operating the cable tensioning device (9).

3. 3. The device according to claim 2, wherein the limiting device (10) can interrupt the operative connection between the cable tensioning device (9) and the operating element (11) when a preset operating moment, which is preferably associated with the preset cable tension, is reached.

4. 4. The device according to claim 2 or 3, wherein the operating element (11) is part of the limiting device (10).

5. 5. The device according to claim 2, wherein the limiting device (10) has a bearing element (10a) in or on which the operating element (11) can be supported or is supported.

6. 6. The device according to claim 5, wherein the limiting device (10) has a connecting element (10b) by means of which the bearing element (10a) and the operating element (11) are or can be at least temporarily kinematically connected.

7. 7. The device according to claim 6, wherein the limiting device (10) has a force accumulator (10c) by means of which the connecting element (11) is or can be loaded with a predefined force and / or the connecting element (10b) is configured as a force accumulator at least in a specific area, and preferably the predefined actuating moment is determined by the force accumulator (10c) and / or by the connecting element (10b) configured as a force accumulator at least in a specific area.

8. 8. The device according to claim 6 or 7, wherein the connecting element (10b) is made elastically deformable at least in a given region.

9. 9. The device according to claim 7, wherein the connecting element (10b) is elastically deformable against the action of the force accumulator (10c) and / or against the action of the connecting element (10b) which is formed as a force accumulator at least in certain areas when the preset cable tension is reached, so that the kinematic connection between the bearing element (10a) and the actuating element (11) can be broken.

10. 10. The device according to claim 2, wherein the operating element (11) comprises a screw head drive (11a).

11. 11. The device according to claim 2, wherein the operating element (11) is designed substantially rotationally symmetrically.

12. 12. The device according to claim 5, wherein the bearing element (10a) is substantially rotationally symmetrical.

13. 13. The device according to claim 6, wherein the connecting element (10b) and / or the energy accumulator (10c) are formed in a part-circular shape.

14. 14. The device according to claim 6, wherein the connecting element (10b) has a connecting pin (10d) which passes through the bearing element (10a) through an opening (10e) provided in the bearing element (10a).

15. 15. The device according to claim 14, wherein the connecting pin (10d) abuts against a control contour (11b) of the operating element (11).

16. 16. The cable tensioning device (9) according to claim 1, further comprising a tensioning unit (12) including a contact element (12a) that contacts the at least one cable (8a) and a tensioning element (12b) that tensions the at least one cable (8a) via the contact element (12a).

17. 17. The device according to claim 16, wherein the contact element (12a) is supported on the tension element (12b) via a moving screw thread and / or at least one spring element (12c), preferably formed as an O-ring, is arranged between the contact element (12a) and the tension element (12b).

18. 17. The device according to claim 5, wherein the tension element (12b) is kinematically connected or connectable to the bearing element (10a).

19. 19. The device according to any one of claims 5 to 18, wherein the bearing element (10a) has an actuating section (10f) for preloading the cable tensioning device (9).

20. 20. Apparatus according to any one of the preceding claims, characterized in that the cable tensioning device (9) comprises a display device (13) for displaying the cable tension state.

21. 21. Apparatus according to claim 20, characterized in that the display device (13) comprises a display element (13a) with an indicator (13b).

22. 22. Apparatus according to any one of the preceding claims, wherein the cable tensioning device (9) comprises at least one fixing device (9a) for fixing the at least one cable (8a).

23. 23. The device according to claim 1, further comprising at least one swivel lever mechanism (5) which comprises at least two swivel levers (5a, 5b) pivotally connected to one another and which are swivelable relative to one another when the support (6) moves along the fixed furniture part (3).

24. A piece of furniture (100) comprising at least one fixed furniture part (3), at least one movable furniture part (2) and at least one device (1) according to any one of claims 1 to 23, preferably said piece of furniture (100) having at least one shaft-shaped cavity (101) in which said at least one movable furniture part (2) can be arranged.

25. A method for assembling a device (1) according to any one of claims 1 to 23, comprising the steps of: - in a first method step, at least one guide system (4) is attached to a fixed furniture part (3), - in a second method step, a support (6) is kinematically connected to said at least one guide system (4), and in a third method step, the cable (8a) of the cable traction device (8) is tensioned by a cable tensioning device (9), with further tensioning of said cable (8a) being prevented by a limiting device (10) when a preset cable tension is reached, method.

26. Prior to said third method step, the following step may additionally be carried out: - inserting said cable (8a) into said cable tensioning device (9), and - fixing said cable (8a) by means of a fixing device (9a) 26. The method of claim 25, further comprising:

27. 27. Method according to claim 25 or 26, characterized in that in an intermediate step at least one of the at least two swivel levers (5a, 5b) is connected to said at least one guide system (4) and / or to said fixed furniture part (3).

28. 28. Method according to any of claims 25 to 27, characterized in that in a further method step a movable furniture part (2), preferably a furniture door, a sliding door or a folding sliding door, is assembled to the support (6).

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