Furniture and method for mounting a sliding door on a furniture body

Abstract

A piece of furniture (1) comprises a furniture carcass (2) on which at least one sliding door (3, 4) is movably mounted via at least one running element (6) along a running rail (5), and a guide rail (9) fixed to the furniture carcass (2), along which at least one guide element (15, 25) held on the sliding door (3, 4) is movable, wherein the guide element (15, 25) is slidably mounted on a mounting element (16, 16') which is fixed to the sliding door (3, 4), wherein the guide element (15, 25) is biased relative to the mounting element (16, 16') via at least one spring element (20), wherein at least one guide roller (14) is rotatably mounted on the guide element (15, 25), which can roll on a guide track on a guide section (12) of the guide rail (9) and moves the guide element (15, 25) in a vertical direction is pre-tensioned towards the guide rail (9) at the bottom.Furthermore, the invention relates to a method for mounting a sliding door (3, 4) on a furniture body (2).

Description

[0001] The present invention relates to a piece of furniture having a furniture body on which at least one sliding door is held so as to be movable along a guide rail via at least one running part, and a guide rail fixed to the furniture body, along which at least one guide part held on the sliding door is movable, wherein the guide part is held so as to be movable on a mounting element which is fixed to the sliding door, and a method for mounting a sliding door on a furniture body.

[0002] DE 10 2017 107 910 A1 discloses a piece of furniture with a sliding element that can be suspended from a guide rail via running parts and is guided in a lower area via a guide device. The guide device comprises a guide rail fixed to the furniture body and a guide part held on a sliding door, which is held on a mounting element so that it can be moved vertically. As a result, when the sliding door moves, the guide part can be moved relative to the mounting element in order to compensate for tolerances caused by the alignment or positioning of the guide rail. This type of guide has proven itself to be effective; however, grinding or rattling noises can occur when the guide part is moved, particularly because the guide part is held on the guide rail with some play.

[0003] DE 10 2016 109 716 discloses a guide device for a sliding element, which comprises a guide rail with at least one groove into which a guide element that can be fixed to a sliding element can be inserted.

[0004] DE 10 2013 100 922 discloses a running part for guiding a furniture fitting along a guide rail, in which a holder is adjustable in order to then run guided in the guide direction.

[0005] EP 2 248 977 discloses a guide fitting for a sliding door with a guide housing in which a sliding element is slidably mounted and preloaded by a spring element. A locking tongue is arranged on the sliding element and can be locked to a locking element of the guide housing.

[0006] DE 20 2019 102 727 U1 discloses a guide device for a sliding door, in which the sliding door can be moved along a guide profile. A guide part is provided, pivotably mounted on the sliding door, with a guide slope, which can be moved into a locked guide position during the assembly process.

[0007] The object of the present invention is therefore to create a piece of furniture in which the sliding door guides along the furniture body are improved. Furthermore, the sliding door should be easy to mount on the furniture body.

[0008] This object is achieved with a piece of furniture having the features of claim 1 and a method for mounting a sliding door on a furniture body having the features of claim 12.

[0009] In the furniture item according to the invention, a guide part is slidably mounted on a mounting element that is fixed to a sliding door, wherein the guide part is preloaded relative to the mounting element via at least one spring element. As a result, the guide part is preloaded in the sliding direction toward the guide rail, so that a defined contact surface of the guide part rests against the guide rail. During movement of the guide part along the guide rail and relative to the mounting element, the at least one spring element ensures that the guide part cannot rattle, but is moved along the predetermined contact surface along the guide rail.

[0010] According to the invention, the guide part is pre-tensioned vertically downwards toward the guide rail. Thus, the pre-tensioning force of the at least one spring element counteracts the weight of the sliding door.

[0011] To minimize noise when moving the sliding door, the guide part according to the invention comprises at least one rotatably mounted guide roller that can roll along a guide track on the guide rail. This avoids grinding noises that occur with sliding friction. The guide roller can, for example, roll along an upper side of a guide section of the guide rail and is preloaded toward the guide rail by the force of the at least one spring element. The guide roller can have a profiled cross-section, for example, concave or convex, in order to guide the sliding door in a lateral horizontal direction perpendicular to the guide rail.

[0012] For a simple design, the at least one spring element can be formed integrally with the guide part and / or the mounting element. Preferably, the at least one spring element comprises a flexible spring bar that can be moved along a curved guide. By setting a corresponding incline of the curved guide relative to the spring element, the spring element can be tensioned or relaxed depending on the movement of the guide part along the mounting element. The force applied by the at least one spring element can be varied, for example by at least 20%, depending on the orientation of the curved guide. The curved guide can have different inclines along its course in order to be able to adapt the forces as needed and as needed. This means that any spring rate for predeterminable work or assembly processes can be easily generated using a single curved guide.

[0013] The spring element preferably comprises two flexible spring bars, each of which is movable along a curved guide and, upon movement along the curved guide, can be pivoted in opposite directions by displacing the guide part relative to the mounting element. The spring elements thus ensure centering and prevent or reduce transverse forces upon movement of the guide part relative to the mounting element. The curved guides can be arranged symmetrically relative to a central plane, so that the transverse forces generated by the spring bars perpendicular to the sliding direction essentially compensate for each other and effect centering.

[0014] In a further embodiment, a locking receptacle for the flexible spring bar is formed on the at least one curved guide. This facilitates assembly, as the guide part can be locked into a predetermined position on the mounting element via the locking receptacle. From this locking position, the guide part can then be moved to be mounted and moved on a guide section of the guide rail.

[0015] For a particularly compact design, the at least one spring bar of the spring element can be formed on the guide part, and the at least one curved guide can be formed on the mounting element. This allows the curved guide to be arranged stationary on the sliding door, while the guide part with the at least one spring bar, preferably the two spring bars, can be moved relative to the mounting element. Of course, the reverse is also possible: the curved guide can be provided on the guide part and the at least one spring bar on the mounting element.

[0016] For effective assembly, the guide part can be plugged or slid onto the mounting element. The guide part can be pushed on either from above or below, with a guide track preferably being formed on the mounting element for threading the at least one spring element to the curved guide. This guide track can, for example, be formed on an outer side of the mounting element, which is accessible on the rear of the sliding door in the assembled position. Then, by moving the guide part with the at least one spring bar, preferably two spring bars, along the guide track, the spring bars can be bent until they are transferred to the curved guide by the guide track. This enables tool-free assembly by sliding a guide part onto the mounting element.

[0017] The guide part preferably has a receptacle into which a web of the mounting element is inserted, along which the guide part can be displaced. The web can thus have corresponding guide surfaces that are used for guidance.

[0018] In the method according to the invention for mounting a sliding door to a furniture body, at least one running part on a sliding door is first suspended from a running rail on the furniture body, wherein the running rail is fixed, for example, to a top panel of the furniture body. The sliding door can then be pivoted about the running rail, wherein a guide part on the sliding door comes into contact with a guide rail on the furniture body via a run-on bevel and is displaced relative to a mounting element fixed to the sliding door against the force of at least one spring element. The guide part can then be locked to the guide rail, wherein in the locked position the at least one spring element preloads the guide part towards the guide rail. This ensures a certain preload of the guide part towards the guide rail in the mounted position, which ensures defined contact conditions and prevents rattling noises.According to the invention, the locking of the guide part is effected via a guide roller which is rotatably mounted on the guide part and which can roll along a guide track on a guide section of the guide rail.

[0019] For effective installation of the guide part, it can be pushed onto the mounting element during assembly and locked into place by means of at least one spring element. The at least one spring element can thus enable pre-positioning of the guide part during assembly, allowing it to be slightly displaced from the locked position in the pre-assembled position and then resting against the guide rail with pre-tension in the assembled position.

[0020] The invention will be explained in more detail below using several exemplary embodiments with reference to the accompanying drawings. They show: Figure 1 is a perspective view of a piece of furniture according to the invention; Figure 2 is a detailed view of the piece of furniture according to the invention.Figure 1 in the area of ​​a guide device; Figure 3 a rear view of the two sliding doors of the furniture of the Figure 1 ; Figure 4 a perspective view of the guide device of the Figure 2 ; Figures 5A and 5B two views of a guide part of the guide device; Figures 6A and 6B two views of the guide part of the Figure 5 during assembly on the mounting element; Figures 7A to 7C show several views during assembly of the guide part on the mounting element; Figures 8A and 8B show two views during assembly of the guide part on the guide rail; Figure 9 shows a view of a modified embodiment of a guide part; Figures 10A to 10F show several views during assembly of the guide part of the Figure 9 on a mounting element; Figures 11A and 11B two views of the guide part of the Figure 9 on the mounting element in a locked position, and Figures 12A to 12C show several views of the guide part of the Figure 9on the mounting element in a mounted position.

[0021] A piece of furniture 1, in particular a cabinet, comprises a furniture body 2 on which two sliding doors 3 and 4 are arranged to be movable at a front side. Each sliding door 3 and 4 comprises one or more runners 6 in an upper region, in particular with a roller, which can be moved along a guide rail 5. The guide rail 5 is held on a top panel 7 of the furniture body 2. Instead of two sliding doors 3 and 4, the furniture body 2 can also have only one or more than two sliding doors 3 and 4.

[0022] The furniture body 2 comprises a base 8 to which a guide rail 9 is fixed. The guide rail 9 is part of a guide device 10 for guiding the sliding doors 3 and 4 in a lower area.

[0023] In Figure 2the guide device 10 is shown in detail. The guide rail 9 is fixed to the floor 8 and comprises two protruding webs 11, on each of which a guide section 12 is formed, which in cross-section has a thickened section in the form of a bulge, rhombus, triangle, cuboid, or other geometry. A guide roller 14 is rotatably mounted on each guide section 12 and can be moved along a guide track on the guide section 12. The guide roller 14 has a profiled cross-section, in particular a concave or convex arch, so that movement of the guide roller 14 in the axial direction is prevented. As a result, the sliding door 3 or 4 can be guided in a direction perpendicular to the direction of travel via the guide roller 14 and a guide part 15 or 25. The guide part 15 and the guide part 25 each comprise a holder 13 which has a receptacle into which the thickened guide section 12 can be inserted.The holder 13 can be locked to the guide section 12 so that an unintentional release of a sliding door 3 or 4 from the guide rail 9 is prevented.

[0024] In the rear sliding door 3, the guide part 15 is fixed to the rear of the sliding door 3 via a mounting element 16 and held for vertical displacement. A mounting element 16 is also fixed to the front sliding door 4, to which a guide part 25 is held for vertical displacement. This guide part 25 is connected to the holder 13 and the guide roller 14 via an adapter 17. The adapter 17 can be used to bridge the larger distance between the front sliding door 4 and the guide rail 9, with the function of the guide parts 15 and 25 otherwise being identical.

[0025] In Figure 3the two sliding doors 3 and 4 are shown from a rear side, and it can be seen that two mounting elements 16 are fixed to each sliding door 3 and 4, on each of which a guide part 15 or 25 is held displaceably.

[0026] Figure 4shows the guide device 10 with the two guide rollers 14 each engaging with a guide section 12 of the guide rail 9. Each guide roller 14 is preloaded towards the guide section 12 via at least one spring element 20. The spring elements 20 press the guide part 15 or 25 downwards in a vertical direction against the weight of the sliding doors 3 and 4, whereby a resulting torque acts on the guide part 15 or 25, which thus effectively prevents rattling between the guide part 15, 25 and the guide rail 9. This results in a defined contact surface for the guide parts 15 and 25 on the guide roller 14, and rattling noises can be effectively avoided even when different sections of the guide rail 9 are moved, if the guide rail 9 is constructed in several parts.

[0027] In the Figures 5A and 5BThe guide part 25 of the front sliding door 4 is shown in detail. The guide part 25 comprises spring elements 20 in the form of two spring webs, which have a contact surface 21 or a driver projection at their end, which can be placed on the mounting element 16. The guide part 25 further comprises pockets 22, which can be attached to hooks 23 on the adapter 17, as well as webs 31, which engage in pockets 32 on the adapter 17 to act as stops in the vertical direction. This ensures that the guide part 25 is correctly fixed to the adapter 17. The adapter 17, made of sheet metal, further comprises a central receptacle 26, into which a web of the mounting element 16 can be inserted. In the upper region of the adapter 17, a bracket 30 is formed, which is displaceable in the vertical direction relative to a front side of the mounting element 16. The bracket 30 serves as protection for the spring elements 20 during transport and assembly.The adapter 17 further includes webs 24 that can be inserted into pockets 19 on the holder 13 to clamp the holder 13 to the adapter 17. In the assembled position, the guide part 25, the adapter 17, and the holder 13 form a unit that can optionally be manufactured from fewer or more components.

[0028] In the Figures 6A and 6B The mounting of the guide part 25 on the mounting element 16 is shown. The mounting element 16 comprises a web 27, which can be inserted into the receptacle 26 on the adapter 17 of the guide part 25. Furthermore, a curved guide 28 is formed on the mounting element 16, which has a locking receptacle 29. The two spring webs of the spring element 20 rest with their contact surface 21 on the curved guide 28, wherein Figure 6Bthe locked position is shown, in which the contact surface 21 is arranged on the locking receptacle 29. In this position, the guide part 25 with the holder 13 protrudes downwards over an underside of the sliding door 4.

[0029] If the sliding door is to be mounted on the furniture body 2, the sliding door 3 or 4 is first hung on the top side of the sliding door via the guide parts 6 on the guide rail 5. Subsequently, the sliding doors 3 and 4 can be pivoted about the guide rail 5 so that the guide device 10 is engaged, wherein the pivot axis corresponds to the longitudinal direction of the guide rail 5. For this purpose, the guide rollers 14 on the guide part 15 or 25 are brought into engagement with the guide section 12 of the guide rail 9. During this movement, the guide part 15 or 25 is slightly raised, as shown in Figure 7Ais shown. By lifting the guide part 25, the two spring bars of the spring element 20 move upwards along the curved guide 28, so that the spring bars spread open and preload the guide part 25 downwards. The guide roller 14 therefore rests with a preload force on the guide section 12 of the guide rail 9 (not shown). If the guide part 25 is now moved along the guide rail 9, it may be necessary to move the guide part 25 along the mounting element 16, for example by slightly inclining the guide rail 9. The guide part 25 is then moved upwards, as shown in Figure 7Bis shown. By moving the guide part 25 relative to the mounting element 16, the spring bars of the spring element 20 spread open. If the guide part 25 is to be moved downward again, the spring bars of the spring element 20 press downward through contact with the curved guide 28, so that a force is applied to the guide roller 14 throughout the entire guide movement, regardless of the position of the guide element 25.

[0030] In Figure 7C An assembly position is shown in which the sliding door 4 is placed on a floor. In Figure 6BThe guide part 25 is in a locked position in which the spring bars of the spring element 20 rest against the locking receptacle 29. If the sliding door 4 is placed on a floor, the downwardly projecting guide part 25 should prevent damage to either the floor or the guide part 25 itself. By placing the sliding door 4 down, the locking is released, and the guide part 25 is pushed upwards against the force of the spring bars of the spring element 20 until the Figure 7C shown position is reached, in which the guide part 25 is aligned with a bottom side substantially flush with a bottom side 42 of the sliding door 4. The spring bars of the spring element 20 are in a maximally spread position.

[0031] As in particular the Figures 7A to 7CAs shown, the curve guide 28 is equipped with different inclinations or gradients in its course in order to be able to adjust the spring forces and thus also the spring rate according to requirements and situations. The spring forces are thus Figures 7A and 7B due to a higher gradient in the lower part of the curve 28 higher than those according to the Figure 7C This is an increase in comfort and safety, as in the working position according to the Figures 7A and 7B higher spring forces are required than in a position according to the Figure 7C where the sliding door 4 is placed on a floor. However, the spring forces of the Figure 7C shown working position to move the guide part 25 vertically downwards.

[0032] In the Figures 8A and 8B The assembly of a guide device 10 of the rear sliding door 3 during pivoting is shown. Figure 8AThe sliding door 3 with the holder 13 is located in front of the guide section 12, and a bevel 18 of the holder 13 rests against the guide section 12. By pivoting the sliding door 3 towards the floor 8, the guide part 15 is pushed upwards via the bevels 18 and 33 or moved into a position until the guide section 12 can be inserted into the receptacle on the holder 13, as shown in Figure 8B is shown. The holder 13 can surround the guide section 12 in a U-shape and lock onto it to prevent accidental release of the sliding door 3 from the guide rail 9. If the sliding door 3 is now pushed towards the guide rail 9, the guide section 12 enters the U-shaped receptacle of the holder 13 and the underside of the guide roller 14 engages with the guide track on the top side of the guide section 12. During the movement from Figure 8A to Figure 8Bthe guide part 15 was moved upwards against the force of the spring bars of the spring element 20, so that in the mounted position the guide roller 14 is pretensioned towards the guide section 12.

[0033] In Figure 9 A modified embodiment of a guide device is shown, which comprises a guide part 25 with spring elements 20, which can be mounted on a modified mounting element 16'. The mounting element 16' comprises the downwardly projecting web 27, which can be secured to the rear of the sliding door 3 or 4. In addition, the mounting element 16' comprises a guide track 40 between the two curved guides 28 with a projection 41, which facilitates threading of the guide part 25 or 15. The guide part 25 is designed similarly to the previous embodiment, wherein a receptacle 26 for inserting the web 27 is designed somewhat wider on the adapter 17'.

[0034] The assembly of the guide part 25 on the modified mounting element 16` is shown in the Figures 10A to 10F The guide part 25 can be pushed from above onto the mounting element 16' fixed to the sliding door 4. According to Figure 10A First, the guide part 25 is positioned above the mounting element 16' and then moved downwards so that the upper section of the mounting element 16' enters the receptacle 26, the edge of which is arranged between an edge of the mounting element 16' and the back of the sliding door 4. The guide part 25 can now be moved downwards, as shown in Figure 10B is shown. When the guide part 25 is moved, the spring bars of the spring element 20 engage with a contact surface 21 in the guide track 40 on the upper side of the mounting element 16'. The contact surfaces 21 on the spring bars are designed as projections that protrude toward the rear of the sliding door 4 and can thus be threaded into the guide track 40.

[0035] If the guide part 25 is moved further downwards, as shown in Figure 10D As shown, the spring bars of the spring element 20 with the contact surfaces 21 reach the projection 41, which ensures that the spring bars spread open when moved. In Figure 10E The spring bars of the spring element 20 are shown in a spread-out position adjacent to the locking receptacle 29. Due to the movement along the guide track 40, the spring bars with the driver projections, which form the contact surfaces 21, are arranged adjacent to the locking receptacles 29, as shown in Figure 10F is shown. If the guide part 25 is now moved slightly further downwards, the projections of the contact surfaces 21 engage the locking receptacle 29.

[0036] The locked position of the guide part 25 on the mounting element 16' is in the Figures 11A and 11Bshown. The spring bars of the spring element 20 were threaded onto the curved guide 28 via the guide track 40 and are now locked into the locking receptacle 29. In this position, the unit comprising the sliding door 4, mounting element 16' and guide part 25 can now be mounted on the guide rail 9, as described above. By pivoting the sliding door 4 along the guide slopes 18 and 33, the guide part 25 is moved upwards or brought into position, as shown in the Figures 12A to 12C is shown. By moving the guide part 25, the spring bars are moved along the curved guide 28 and spread apart, thus ensuring a downward preload of the guide part 25 so that the guide roller 14 rests with preload on the guide section 12 of the guide rail 9.

[0037] In the illustrated embodiment, the guide track 40 for threading the spring bars ends directly at the locking receptacle 29. It is also possible to provide the end of the guide track 40 at a different position in order to be able to easily mount the guide part 25.

[0038] In the illustrated embodiment, two spring bars are provided on each guide part 15 or 25, which can be moved along a curved guide 28 on the mounting element 16. It is also possible to provide the spring bars on the mounting element 16 or 16' and the curved guide 28 on the guide part 15 or 25. Furthermore, the number of spring bars per spring element can be varied depending on the desired forces for preloading the guide part 15 or 25. List of reference symbols

[0039] 1Furniture 2Furniture body 3Sliding door 4Sliding door 5Running track 6Running part 7Top panel 8Floor 9Guide rail 10Guide device 11Bar 12Guide section 13Holder 14Guide roller 15Guide part 16, 16`Mounting element 17, 17`Adapter 18Bevel 19Pocket 20Spring element 21Contact surface 22Pocket 23Hook 24Bar 25Guide part 26Receptacle 27Bar 28Curved guide 29Locking receptacle 30Bracket 31Bar 32Pocket 33Bevel 40Guide track 41Protrusion 42Underside

Claims

1. A piece of furniture (1) comprising a furniture body (2) on which at least one sliding door (3, 4) is held so as to be movable along a guide rail (5) via at least one running part (6), and a guide rail (9) fixed to the furniture body (2) along which at least one guide part (15, 25) held on the sliding door (3, 4) is movable, wherein the guide part (15, 25) is held so as to be movable on a mounting element (16, 16') which is fixed to the sliding door (3, 4), wherein the guide part (15, 25) is prestressed relative to the mounting element (16, 16') via at least one spring element (20), characterized in that at least one guide roller (14) is rotatably mounted on the guide part (15, 25), which can roll on a guide track on a guide section (12) of the guide rail (9) and the guide part (15, 25) is pretensioned in the vertical direction downwards towards the guide rail (9).

2. Furniture according to claim 1, characterized in thatwhen the guide part (15, 25) moves along the guide rail (9) and relative to the mounting element (16, 16'), the at least one spring element (20) ensures that the guide part (15, 25) is moved along a predetermined contact surface along the guide rail (9).

3. Furniture according to claim 1 or 2, characterized in that the at least one spring element (20) is formed integrally with the guide part (15, 25) and / or the mounting element (16, 16').

4. Furniture according to one of the preceding claims, characterized in that the at least one spring element (20) comprises a flexible spring bar which is movable along a curved guide (28).

5. Furniture according to claim 4, characterized in thatthe spring element (20) comprises two flexible spring bars, each of which is movable along a curved guide (28) and, during a movement along the curved guide (28), can be pivoted in opposite directions by displacing the guide part (15, 25) relative to the mounting element (16).

6. Furniture according to claim 4 or 5, characterized in that on the at least one curved guide (28) a locking receptacle (29) is formed for locking a flexible spring bar of the spring element (20).

7. Furniture according to one of claims 4 to 6, characterized in that the at least one spring web of the spring element (20) is formed on the guide part (15, 25) and the at least one curved guide (28) is formed on the mounting element (16, 16').

8. Furniture according to claim 4, characterized in that the at least one curve guide (28) has different gradients in its course.

9. Furniture according to one of the preceding claims, characterized in thatthe guide part (15, 25) can be plugged or pushed onto the mounting element (16, 16`) for assembly.

10. Furniture according to one of the preceding claims, characterized in that a guide track (40) for threading at least one spring bar of the spring element (20) to a curved guide (28) on the mounting element (16`) is formed on the mounting element (16`).

11. Furniture according to one of the preceding claims, characterized in that the guide part (15, 25) has a receptacle into which a web of the mounting element (16, 16') is inserted, along which the guide part (15, 25) is displaceable.

12. Method for mounting a sliding door (3, 4) on a furniture body (2), comprising the following steps: - hanging at least one running part (6) on a sliding door (3, 4) on a running rail (5) on a furniture body (2);- pivoting the sliding door (3, 4) about the guide rail (5), wherein a guide part (15, 25) on the sliding door (3, 4) comes into contact with a guide rail (9) on the furniture body (2) via at least one run-on bevel (18, 33) and is displaced against the force of at least one spring element (20) relative to a mounting element (16, 16') fixed to the sliding door (3, 4), and - locking the guide part (15, 25) on the guide rail (9), wherein the at least one spring element (20) pretensions the guide part (15, 25) towards the guide rail (9), wherein the locking of the guide part (15, 25) takes place via a guide roller (14) rotatably mounted on the guide part (15, 25) and can roll along a guide track on a guide section of the guide rail (9); 13. Method according to claim 12, characterized in thatthe guide part (15, 25) is pushed onto the mounting element (16, 16') during assembly and is locked via the at least one spring element (20).

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