EP4296459A1 - Sliding door fitting - Google Patents

Abstract

A sliding door fitting for furniture (1) comprises a guide rail (10) formed from at least two rail parts (10a, 10b), which can be secured to a furniture body (2) and along which at least one guide part (13, 14) is guided, which is attached to a Sliding door (3, 4) can be fixed in order to keep it movable and guided on the furniture body (2), with at least one support roller (24, 26) on the furniture body (2) in a joint area between the at least two rail parts (10a, 10b). ) is fixed and rotatably mounted, by means of which the at least one guide part (13, 14) can be supported when driving over the joint area of the guide rail (10). As a result, the joint area between the at least two rail parts (10a, 10b) can be passed over evenly and without generating any noise.

Description

The present invention relates to a sliding door fitting for furniture with a guide rail formed from at least two rail parts, which can be fixed to a furniture body and along which at least one guide part is guided, which can be fixed to a sliding door in order to keep it movable and guided on the furniture body.

In the DE 10 2019 101 334 A1 a sliding door fitting for furniture is shown, in which a running rail is composed of at least two rail parts which are arranged in alignment in the joint area. To avoid deflection of the rail parts in the joint area, a guide element is mounted on the joint area, which forms a guideway laterally next to the track of the running rail, so that a roller rolls in the joint area on the guideway and thus the leadership in the joint area is taken over by the guideway becomes. To assemble the guide element, the rail parts are provided with recesses in the joint area, so that the production and assembly of the sliding door fitting is complex.

The EP 3 653 821 discloses a guide device for sliding doors, in which a guide element is inserted on the track in a joint area between two rail parts so that guidance can be provided either via a main roller or an auxiliary roller. Providing two rollers next to each other leads to a voluminous design and complex assembly. Another disadvantage of the guide rails that are open at the top is that they become dirty over time, which has a negative impact on smooth running.

It is therefore the object of the present invention to provide an improved sliding door fitting which ensures quiet guidance in the joint area between two rail parts.

This task is achieved with a sliding door fitting with the features of claim 1.

In the sliding door fitting according to the invention, there is at least one support roller on the in a joint area between the at least two rail parts Furniture body can be fixed and rotatably mounted, by means of which the at least one guide part can be supported when driving over the joint area of the guide rail. As a result, a stationary support roller can be used to bridge any unevenness in the joint area between the two rail parts, in that the support roller supports the guide part when the at least one guide part is moved over the joint area. A corresponding guide is essentially provided on an underside of the guide part, so that there are no impairments caused by contamination even over a longer period of use. In addition, the transition between the two rail parts can be optimized.

Preferably, a guide track is formed on the at least one guide part and can be rolled on the support roller. The guide track can have a length between 1 cm to 8 cm, in particular 2 cm to 5 cm, in order to be able to support the guide part over a certain distance. The guide track can have a curved section for raising and lowering the guide part, so that when the abutment area is passed over, the guide part is first raised and then lowered. Alternatively, it is also possible to design the guideway only linearly or slightly angularly.

In a further embodiment, the at least two rail parts are connected to one another in the joint area via a butt connector. For easy assembly, the at least one support roller can be rotatably mounted on the butt connector. This means that the two rail parts with the butt connector can be secured as a unit to a furniture body, for example to a floor or a top panel. The butt connector can form a spacer so that the two rail parts are arranged at a predetermined distance from one another. Part of the butt connector is therefore an extension of a guide on the two rail parts. This transition area can optionally have a depression or depression, since in this area the guide part is supported via the support roller.

A butt connector is preferably mounted between the rail parts, on which at least two support rollers are rotatably mounted, with at least one of two guide parts being supported via each support roller. A first guide part can thus be supported along a first guide on the guide rail via a first support roller and a second guide part can be supported via a second support roller, which can be supported along a second guide on the guide rail is movable. This allows sliding doors, which are arranged in different levels, to be guided in a compact manner on the guide rail. The two support rollers can be arranged one above the other in the vertical direction, so that the necessary installation space in the horizontal direction is small.

At least one guide roller is preferably provided on the at least one guide part, which can be rolled along a track on the guide rail. This allows the guide part to be moved along the guide rail with little force. Instead of at least one guide roller, at least one sliding element can also be used to guide the guide part along the guide rail.

Two spaced guides are preferably formed on the guide rail, each for one guide part. The guides can be arranged one above the other in the vertical direction so that only little space is required.

If no weight forces of a sliding door are absorbed via the guide part, each guide part is preferably held movably in the vertical direction on a mounting element fixed to the sliding door. The guide part can then be moved smoothly along the guide rail, and tolerances during assembly can also be compensated for by the mobility. However, if the weight forces of the sliding door are held via the guide part, this is preferably rigidly fixed to the sliding door.

A piece of furniture according to the invention comprises a furniture body, in particular in the form of a cabinet, and at least one sliding door, which is movably held on the furniture body via a sliding door fitting. Each sliding door can be held hanging on a top shelf via at least one running part on a running rail, and the guide rail is fixed to a floor of the furniture body in order to ensure the alignment of the sliding doors. The inventive arrangement of at least one support roller in the joint area between two rail parts can be provided both on the guide rail on the floor and optionally on the running rail on the top floor.

Figur 1

eine perspektivische Ansicht eines erfindungsgemäßen Möbels;

Figur 2

eine Detailansicht des Möbels der Figur 1 im Bereich einer Führungsschiene;

Figuren 3A und 3B

zwei Ansichten der Führungsschiene im Stoßbereich bei der Montage;

Figuren 4A bis 4C

mehrere Ansichten eines ersten Führungsteils für eine vordere Schiebetür;

Figuren 5A bis 5C

mehrere Ansichten eines zweiten Führungsteils für eine hintere Schiebetür;

Figuren 6A bis 6C

mehrere Ansichten eines Profilverbinders ohne Führungsschiene;

Figuren 7A bis 7C

mehrere Ansichten des Schiebetürbeschlages mit den Führungsteilen beabstandet von dem Stoßbereich;

Figuren 8A bis 8C

mehrere Ansichten des Schiebetürbeschlages mit dem Führungsteil im Stoßbereich, und

Figur 9

mehrere Ansichten beim Überfahren des Stoßbereiches durch ein Führungsteil.

The invention is explained in more detail below using an exemplary embodiment with reference to the accompanying drawings. Show it:

Figure 1

a perspective view of a piece of furniture according to the invention;

Figure 2

a detailed view of the furniture Figure 1 in the area of a guide rail;

Figures 3A and 3B

two views of the guide rail in the joint area during assembly;

Figures 4A to 4C

several views of a first guide part for a front sliding door;

Figures 5A to 5C

several views of a second guide part for a rear sliding door;

Figures 6A to 6C

several views of a profile connector without a guide rail;

Figures 7A to 7C

several views of the sliding door fitting with the guide parts spaced from the abutment area;

Figures 8A to 8C

several views of the sliding door fitting with the guide part in the joint area, and

Figure 9

multiple views when a guide part passes over the joint area.

A piece of furniture 1 is designed as a cabinet piece of furniture and comprises a furniture body 2, on which a front sliding door 3 and a rear sliding door 4 are movably held at an opening in the furniture body 2. It is also possible to provide more than two sliding doors 3 and 4 on the furniture body 2 in order to close an opening. A running rail 5 is fixed to a top panel 8 of the furniture body 2, on which the front sliding door 3 is held suspended via running parts 6 and the rear sliding door 4 is held hanging via running parts 7.

In Figure 2 a sliding door fitting is shown on the furniture 1, which is arranged on a floor 9 of the furniture body 2. The sliding door fitting includes a guide rail 10 fixed to the floor 9, on which two are placed one above the other arranged guides 11 and 12 are formed. The guide rail 10 is fixed to an end face of the floor 9 or a base.

The front sliding door 3 has a guide part 13 in the lower area, by means of which the sliding door 3 is guided along the guide 11. For this purpose, a guide roller 15 is rotatably mounted on the guide part 13 and rolls along a track on the guide 11. In a similar way, the rear sliding door 4 is provided with a guide part 14 on which a guide roller 16 is rotatably mounted, which rolls on the guide 12. Instead of the guide rollers 15 and 16, sliding elements can also be arranged along the guides 11 and 12 as an alternative or in combination.

Two support rollers 24 and 26 are also provided on the furniture body, by means of which the guide parts 13 and 14 can be supported over a certain distance.

In Figure 3A the guide rail 10 is shown during assembly. The guide rail 10 consists of at least two rail parts 10a and 10b, which are connected to one another in a joint area via a joint connector 20. The butt connector 20 includes pins 21 projecting on opposite sides, which are inserted into a cavity at an end portion 19 of the guides 11 and 12. The end sections 19 taper towards the joint area, but can also be designed with a constant cross section over the guides 11 and 12. A plate-shaped spacer 22 is provided between two pins 21, which is arranged between the two end sections 19 and specifies the distance between the two rail parts 10a and 10b in the joint area.

The butt connector 20 includes a lower holder 23, on which a lower support roller 24 is rotatably mounted. Furthermore, an upper holder 25 is provided, on which an upper support roller 26 is rotatably mounted.

In Figure 3B the assembled position of the butt connector 20 is shown, which is arranged in the joint area between the two rail parts 10a and 10b. It can be seen that on the two guides 11 and 12 the end sections 19 taper towards the spacer 22 and thus an upper region of a guide track runs in a trough shape. Optionally, the area can also be linear.

In the Figures 4A to 4C the guide part 13 for the front sliding door 3 is shown. The guide part 13 includes a mounting element 30, in particular a mounting plate, which is fixed to a rear side of the front sliding door 3. A holding element 31 is slidably guided on the mounting element 30, so that the guide part 13 can be moved in the vertical direction relative to the sliding door 3. The holding element 31 is connected via a horizontal connecting section 32 to a further holding part 33, on which the guide roller 15 is rotatably mounted. The guide roller 15 is surrounded by a bracket 34, to which an attachment 35 with a guide track 36 is fixed. For this purpose, the attachment 35 is connected to two pins 37, which pass through openings 39 on the attachment 35 and protrude laterally relative to the bracket 34. As a result, the attachment 35 is fixed between the pins 37 and a holding section 38 on the top of the bracket 34. Optionally, the attachment 35 can also be formed integrally with the holding part 33 or can be fixed to the holding part 33 via other fastening means.

A protruding web 17 is also formed on the holding part 33, which engages behind the guide roller 15 underneath and laterally and thus prevents the sliding door 3 from being movable in the assembled position together with the guide part 13 in a direction towards the furniture body 2.

In the Figures 5A to 5C the guide part 14 for the rear sliding door 4 is shown. The guide part 14 also includes a plate-shaped mounting element 40, which can be fixed to the back of the sliding door 4 and on which a holding part 41 is guided so as to be displaceable in the vertical direction. The holding part 41 comprises a projecting bracket 42 on which the guide roller 16 is rotatably mounted. For this purpose, an axis 43 is provided on the bracket 42. Furthermore, an attachment 45 is fixed to the bracket 42, which engages over the guide roller 16. The attachment 45 is held on the bracket 42 via two pins 47. A guide track 46 is formed on the underside of the attachment 45, along which the support roller 26 can be rolled. The attachment 45 can optionally also be formed integrally with the bracket 42 or the holding part 41 or be fixed to it via other fastening means. A protruding web 18 is also provided on the holding part 41, which is arranged below the guide roller 16 and thus prevents the rear sliding door 4 from being lifted upwards.

In the Figures 6A to 6C the butt connector 20 is shown for connecting the rail parts 10a and 10b. The upper support roller 26 on the holder 25 and the Lower support roller 24 on the holder 23 are connected to one another via a bendable web 27, which arranges the two holders 23 and 25 elastically in the event of a load to compensate for tolerances. The support rollers 24 and 26 can consist of the same or a different material than the holders 23 and 25, in particular of a softer elastomeric material in order to avoid noise. Optionally, the butt connector 20 can be manufactured in one piece using a two-component injection molding process if sliding elements are used instead of the guide rollers 15 and 16.

In Figure 7A the sliding door fitting on the furniture body 2 is shown in an area spaced from the abutment area. The guide roller 15 on the guide part 13 rolls on the guide 12, while the guide roller 16 on the guide part 14 rolls on the guide 11. The web 18 limits, in the same way as the web 17, a movement of the sliding door 4 together with the guide part 14 in a direction towards the furniture body 2 relative to the sliding door 3.

In the detailed view of the Figure 7B It can be seen that the guide track 46 is arranged at least partially below an upper side of the support roller 26. The guide track 46 is located at a distance from the support roller 26 in the longitudinal direction of the guide rail 10.

In Figure 7C is shown that the leadership role 16 rests on the track of the leadership 12 and thus rolls on it.

In Figure 8A the position is shown when the guide parts 13 and 14 each move over the joint area between the rail parts 10a and 10b and the butt connector 20. In this position, the attachment 45 is supported on the guide part 14 via the support roller 26, which rolls along the guide track 46. As in the detailed view of the Figure 8B can be seen, the attachment 45 is raised when driving over the support roller 26, since the guide track 46 is curved downwards. By lifting the attachment 45, the guide part 14 is also moved upwards relative to the mounting element 40.

As in Figure 8C can be seen, the movement of the guide part 14 upwards causes the guide roller 16 to be slightly lifted from the track of the guide 12, so that at least over part of the distance of the support roller 26 along the guide track 46, the guide is shifted from the guide roller 16 to the Support roller 26 takes place. The lifting movement of the guide roller 16 is slight, for example between 0.5 to 5 mm, so that the trough-shaped shape of the guide roller 16 still ensures lateral guidance despite the lifting movement. The lower guide part 13 is raised via the guide track 36 on the support roller 24 in the same way as by moving the guide track 46 along the support roller 26.

In Figure 9 the different positions of the guide part 14 are shown when driving over the joint area of the guide rail 10, which is not shown here for simplified illustration. On the left side, the guide part 14 moves with the guide roller 16 to the butt connector 20, and the upper support roller 26 provided on the butt connector 20 comes into contact with the guide track 46, which is curved downwards and has a rising and a falling area, which is curved in the middle area. Alternatively, the middle area can also be designed as a linear horizontal. After the guide track 46 hits the support roller 26, the attachment 45 with the guide part 14 is raised by this shape of the guide track 46 until the support roller 26 passes over the deepest area of the guide track 46, as can be seen in the middle illustration. The support roller 26 then comes into contact with a sloping area of the guide track 46 until the contact between the support roller 26 and the guide track 46 breaks off and the guide roller 16 now rolls on the guide 12 of the guide rail 10.

The guide track 46 can have a length in the longitudinal direction of the guide rail 10 between preferably 1 cm to 5 cm, so that the support roller 26 takes over the vertical guidance of the guide part 14 in the abutment area on the two rail parts 10a and 10b. The other guide part 13 for the front sliding door 3 is guided in the same way.

In the exemplary embodiments shown, the guide tracks 36 and 46 are curved downwards, so that the guide parts 13 and 14 are raised when driving over the joint area. It is of course also possible to make the curvature only slight or to omit it completely in order to achieve the most linear movement of the guide parts 13 and 14.

In the exemplary embodiment shown, the butt connector 20 with the support rollers 24 and 26 is arranged on the lower guide rail 10. It is of course also possible to design the upper running rail 5 with two rail parts, which are equipped with a butt connector with support rollers in order to support the running parts 6 and 7 when driving over the joint area, in which case the weight forces of the sliding doors 3 and 4 can also be absorbed via the support rollers.

Reference symbol list

1

Furniture

2

Furniture body

3

sliding door

4

sliding door

5

Running track

6

Running part

7

Running part

8th

Topsoil

9

Floor

10

Guide rail

10a, 10b

Rail part

11

guide

12

guide

13

Leadership section

14

Leadership section

15

leadership role

16

leadership role

17

web

18

web

19

End section

20

Butt connector

21

Pen

22

Spacers

23

holder

24

Support roller

25

holder

26

Support roller

27

web

30

Mounting element

31

Holding element

32

connection section

33

holding part

34

hanger

35

Essay

36

guideway

37

Pen

38

holding section

39

opening

40

Mounting element

41

holding part

42

hanger

43

axis

45

Essay

46

guideway

47

Pen

Claims (13)

Sliding door fitting for furniture (1) with a guide rail (10) formed from at least two rail parts (10a, 10b), which can be fixed to a furniture body (2) and along which at least one guide part (13, 14) is guided, which is attached to a sliding door (3, 4) can be fixed in order to keep it movable and guided on the furniture body (2), characterized in that in a joint area between the at least two rail parts (10a, 10b) there is at least one support roller (24, 26) on the furniture body (2) is fixed and rotatably mounted, by means of which the at least one guide part (13, 14) can be supported when driving over the joint area of the guide rail (10). Sliding door fitting according to claim 1, characterized in that a guide track (36, 46) is formed on the at least one guide part (13, 14), on which the support roller (24, 26) can be rolled. Sliding door fitting according to claim 2, characterized in that the guide track (36, 46) has a curved section for raising and lowering the at least one guide part (13, 14). Sliding door fitting according to one of the preceding claims, characterized in that the at least two rail parts (10a, 10b) are connected to one another in the joint area via a butt connector (20). Sliding door fitting according to claim 4, characterized in that the at least one support roller (24, 26) is rotatably mounted on the butt connector (20). Sliding door fitting according to claim 4 or 5, characterized in that the at least two rail parts (10a, 10b) are arranged at a distance from one another via the butt connector (20). Sliding door fitting according to one of claims 4 to 6, characterized in that two support rollers (24, 26) are rotatably mounted on the butt connector (20) and one of at least two guide parts (13, 14) can be supported via each support roller (24, 26). . Sliding door fitting according to claim 7, characterized in that the two support rollers (24, 26) are arranged one above the other in the vertical direction. Sliding door fitting according to one of the preceding claims, characterized in that at least one guide roller (15, 16) is provided on the at least one guide part (13, 14), which can be rolled along a track on the guide rail (10). Sliding door fitting according to one of the preceding claims, characterized in that two spaced-apart guides (11, 12) are formed on the guide rail (10), each for at least one guide part (13, 14). Sliding door fitting according to one of the preceding claims, characterized in that each guide part (13, 14) is held movably in the vertical direction on a mounting element (30, 40) fixed to the sliding door (3, 4). Furniture (1) with a furniture body (2) and at least one sliding door (3, 4) which is movably held on the furniture body (2) via a sliding door fitting according to one of the preceding claims. Furniture according to claim 12, characterized in that each sliding door (3, 4) is held hanging on a running rail (5) on a top floor (8) via at least one running part (6, 7) and the guide rail (10) is attached to a floor ( 9) of the furniture body (2) is fixed.

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