EP3990732A1

EP3990732A1 - Furniture drive

Info

Publication number: EP3990732A1
Application number: EP20742635.4A
Authority: EP
Inventors: Thomas Schuler; André HAMMERER; Thomas FOLIE; Irmela Mara GELLER
Original assignee: Julius Blum GmbH
Current assignee: Julius Blum GmbH
Priority date: 2019-06-27
Filing date: 2020-06-08
Publication date: 2022-05-04
Also published as: US11866975B2; JP7297951B2; CN113994061A; CN113994061B; AT522463B1; US20220098907A1; JP2022539095A; AT522463A4; WO2020257833A1

Abstract

The invention relates to a furniture drive (4) for moving a furniture part (3) which is movably mounted relative to a furniture carcass (2), comprising: a first fitting part (5) for securing to the furniture carcass (2); a second fitting part (6) for securing to the moveable furniture part (3); and at least one articulated lever (7) which is connected in an articulated manner to the first fitting part (5) via a first joint axis (A) and to the second fitting part (6) via at least one second joint axis (B); wherein the at least one articulated lever (7) has at least two sections (18a, 18b) which are spaced apart from one another in a direction parallel to the joint axes (A, B) by an offset (ΔΧ), wherein the first fitting part (5) has a first notional central plane (P1) and the second fitting part (6) has a second notional central plane (P2), wherein the central planes (P1, P2) are spaced apart from one another in the direction parallel to the joint axes (A, B).

Description

Furniture drive

The present invention relates to a furniture drive for moving a furniture part mounted movably relative to a furniture body, comprising:

- a first fitting part for attachment to the furniture body,

- a second fitting part for attachment to the movable furniture part,

- At least one articulated lever which is articulated to the first fitting part via a first hinge axis and to the second fitting part via at least a second hinge axis,

- wherein the at least one articulated lever has at least two sections which are spaced apart from one another by an offset in a direction parallel to the articulation axes.

The invention also relates to a set with at least two furniture drives of the type to be described.

The invention also relates to a piece of furniture with a furniture body and at least one furniture part movably mounted relative to the furniture body, the at least one movable furniture part being connected to the furniture body via at least one furniture drive of the type to be described.

Such a furniture drive is shown, for example, in DE 28 29 727 A1. The furniture drive is designed to move a furniture flap and has two levers which are pivotably arranged on the one hand on a first bearing plate to be attached to the furniture body and on the other hand on a second bearing plate to be attached to the furniture flap. The two levers each have a crank, as a result of which the levers and possibly the projecting heads of the pivot pins can be nested in one another.

Another furniture drive is known, for example, from WO 2016/174071 A1. In the case of individual special solutions, difficulties can arise here, for example if a furniture door via the furniture drive directly under a Kitchen countertop is to be mounted. In such a case, a joint must be provided between the top of the furniture door and the underside of the kitchen worktop in order to prevent a collision between the furniture door and the kitchen worktop and thus to enable a perfect pivoting movement of the furniture door between the closed and the open end position. The door-side fitting part of the furniture drive is sunk into a recess in the furniture door, but due to the reduced fleas of the furniture door, only a small wall thickness remains between the recess and an upper side of the furniture door. This small residual wall thickness can mean that the door-side fitting part of the furniture drive is only insufficiently or not at all to be attached to the furniture door and that there is a risk that the door-side fitting part will be torn out of the furniture door. Another problematic assembly situation can arise when the door-side fitting part is to be mounted on a frame (for example an aluminum frame) of the movable furniture part, the frame being designed to accommodate a decorative panel, for example made of glass. For the fastening of the door-side fitting part to the frame - with the formation of a joint between the frame and an adjacent furniture part - there is no suitable fastening option available.

The object of the present invention is to specify a furniture drive of the type mentioned at the beginning while avoiding the disadvantages discussed above.

According to the invention, this is achieved by the features of claim 1. Further exemplary embodiments of the invention are specified in the dependent claims.

According to the invention it is provided that the first fitting part have a first imaginary central plane and the second fitting part have a second imaginary central plane, the central planes being spaced from one another in the direction parallel to the joint axes.

In other words, at least one articulated lever with two sections is provided for the pivotable connection between the two fitting parts a mounted state on the furniture door spaced apart from one another in a height direction and thus bring about a desired height offset between the two fitting parts of the furniture drive. This height offset can be implemented, for example, by an angled or cranked transition section of the articulated lever.

By means of the articulated lever, the second fitting part for attachment to the movable furniture part can be mounted at a lower position on or in the movable furniture part, with sufficient wall thickness remaining between the recess and an upper side of the movable furniture part and also the arrangement of the second fitting part on a frame profile for reception a glass plate is possible.

The offset can for example be between 0.5 mm and 10.0 mm, preferably between 1.0 mm and 7.0 mm.

The at least two sections of the articulated lever can each be designed to be essentially flat and oriented essentially parallel to one another.

The first hinge axis can have a first pin and the at least one second hinge axis can have a second pin, wherein the first pin of the first hinge axis and the second pin of the second hinge axis can be offset from one another in a direction parallel to the hinge axes.

The first fitting part can have a first contact surface to rest on or in the furniture body and the second fitting part can have a second contact surface to rest on or in the movable furniture part, the first contact surface and the second contact surface in the direction parallel to the hinge axes by a first distance from one another are spaced.

According to a preferred embodiment, it can be provided that the first and / or second fitting part are essentially cuboid and / or are designed, at least in some areas, preferably essentially completely to be arranged in a recess in the furniture body or in the movable furniture part.

The set according to the invention has a first furniture drive and at least one second furniture drive of the type described, the offset of the at least one articulated lever of the first furniture drive and the offset of the at least one articulated lever of the second furniture drive being different.

Further details and advantages of the present invention emerge from the following description of the figures.

1 a, 1 b show a piece of furniture with a furniture body and a furniture part that can be moved relative thereto, as well as a furniture drive in perspective views.

2a, 2b show the furniture in a view from the front and a side view of the furniture drive,

Fig. 3 shows an exploded view of the furniture drive,

4 shows a possible application of the furniture drive with a movable furniture part which has a frame and a decorative plate arranged in the frame.

Fig. 1a shows a portion of a piece of furniture 1 with a furniture body 2 and a furniture part 3 that can be moved relative to the furniture body 2. To move the furniture part 3, at least one furniture drive 4 is provided, through which the movable furniture part 3 in an assembled state around a vertically extending Axis is pivotable. The furniture body 2 has a horizontally extending furniture panel 2a in the form of a top panel and a vertically extending furniture panel 2b in the form of a side wall, a first fitting part 5 of the furniture drive 4 being fastened in or on the horizontally extending furniture panel 2a. Of course, it is also possible to fasten the first fitting part 5 of the furniture drive 4 in or on the vertically extending furniture panel 2b of the furniture body 2, the movable furniture part 3 being pivotable in such a case about a horizontally extending axis relative to the furniture body 2, ie relative to the Furniture body 2 could be raised. The furniture drive 4 has a second fitting part 6 for attachment to the movable furniture part 3. The furniture drive 4 can include at least one energy store (not shown), the second fitting part 6 (and thus the movable furniture part 3) being moved into the fully closed position towards the end of the closing movement and / or towards the end of the opening movement into the fully open position due to the force of the energy storage unit is movable. The furniture drive 4 can have a, preferably hydraulic, damping device (for example a piston-cylinder unit) for damping a closing movement and / or an opening movement of the fitting parts 5, 6 relative to one another.

In the figure shown, the first fitting part 5 of the furniture drive 4 is for the most part, preferably essentially completely, accommodated within a plate-shaped furniture part 2a, 2b of the furniture body 2. In the case of a horizontal alignment of the furniture panel 2a, the first fitting part 5 can be arranged in or on a top shelf, in or on a bottom shelf and / or in or on a shelf compartment arranged between the top shelf and the bottom shelf. With a vertical alignment of the furniture panel 2b, the first fitting part 5 can be arranged in or on a vertically extending side wall. The second fitting part 6 of the furniture drive 4, on the other hand, is for the most part, preferably essentially completely, accommodated within the movable furniture part 3. The two fitting parts 5, 6 are articulated to one another via an articulated lever arrangement 11, the articulated lever arrangement 11 having at least one pivotable articulated lever 7, 7a.

The first fitting part 5 is to be fastened via at least one fastening device 10 on the furniture body 2, preferably in or on the horizontal furniture panel 2a of the furniture body 2. The first fitting part 5 can be a

Have side adjustment device 8 with a first adjusting wheel, a position of the first fitting part 5 in a lateral direction in relation to the furniture body 2 being adjustable by rotating the first adjusting wheel. By a

Depth adjustment device 9 with a second adjustment wheel is a position of the first fitting part 5 in a depth direction in relation to the furniture body 2 can be adjusted. FIG. 1 b shows the furniture drive 4 according to FIG. 1 a in a perspective view. The first fitting part 5 has a housing 5a and the second fitting part 6 has a housing 6a. The housing 5a and / or the housing 6a can be essentially cuboid. It is preferably provided that the two housings 5a, 6a are designed to be arranged at least in some areas, preferably essentially completely, in a recess in the furniture body 2 or in the movable furniture part 3.

The articulated lever 7 of the articulated lever arrangement 11 is connected to the first fitting part 5 via a first hinge axis (A) and to the second fitting part 6 via at least one second hinge axis (B). The first hinge axis (A) and the second hinge axis (B) are connected to one another via an angled or cranked transition section 19 (Fig. 3) of the articulated lever 7, so that the hinge axes (A, B) are offset from one another in a flea direction. In this way, the remaining wall thickness 13 (FIG. 1 a) of the movable furniture part 3 can be made thicker and consequently more stable, whereby the second fitting part 6 can be mounted on the movable furniture part 3 in an improved manner.

In the exemplary embodiment shown, the articulated lever arrangement 11 has a further articulated lever 7a, which is mounted on a bracket 12 of the first fitting part 5 around a hinge axis (C) and on the second fitting part 6 around a hinge axis (D). The articulated lever arrangement 11 can thus have four articulation axes (A, B, C, D), at least three articulation axes (B, C, D) being arranged in all relative positions of the fitting parts 5, 6 to one another outside the housing 5a of the first fitting part 5.

Fig. 2a shows the furniture 1 with the furniture body 2 in a view from the front. If there is a worktop 14 above the horizontally extending furniture plate 2a of the furniture body 2, a joint 15 must be provided between the top 3a of the movable furniture part 3 and the underside 14a of the worktop 14 so that the movable furniture part 3 does not swivel the underside 14a of the worktop 14 touches. Through the angled transition section 19 (FIG. 3) of the articulated lever 7, the articulation axes (A, B) of the articulated lever 7 take place in all Relative positions of the fitting parts 5, 6 have a different height position to one another. Due to the height offset of the joint axes (A, B) to one another, the remaining wall thickness 13 (Fig. 1a), which remains between an upper side of the recess for receiving the second fitting part 6 and an upper side 3a of the movable furniture part 3, can be made thicker and consequently more stable.

FIG. 2 b shows the furniture drive 4 in a side view, the second fitting part 6 being in an open position in relation to the first fitting part 5. The at least one articulated lever 7 is connected to the first fitting part 5 via the hinge axis A and to the second fitting part 6 via the hinge axis B. Due to the angled transition section 19 of the articulated lever 7, the two pins of the articulation axes (A, B) are spaced apart from one another by an offset (DC) in a direction parallel to the articulation axes (A, B).

Preferred embodiments: The first fitting part 5 has a first contact surface 5b for contact with or in the furniture body 2 and the second fitting part 6 has a second contact surface 6b for contact with or in the movable furniture part 3, the first contact surface 5b and the second contact surface 6b in FIG the direction parallel to the joint axes (A, B) are spaced from one another by a first distance (X1). Furthermore, it can be provided that the first fitting part 5 has a further contact surface 5c for contact with or in the furniture body 2 and the second fitting part 6 has a further contact surface 6c for contact with or in the movable furniture part 3, the further contact surfaces 5c, 6c in the direction parallel to the joint axes (A, B) are spaced apart from one another by a second distance (X2), and wherein the first distance (X1) and the second distance (X2) are different.

The first fitting part 5 has a first imaginary central plane (P1) and the second fitting part 6 has a second imaginary central plane (P2), the central planes (P1, P2) being spaced apart from one another in the direction parallel to the joint axes (A, B) .

Fig. 3 shows the furniture drive 4 in an exploded view. The first fitting part 5 has the cuboid housing 5a, which is designed to be in a Furniture body 2 arranged recess to be arranged. In addition, a bearing device 17 is provided with two bearing parts 17a, 17b which are spaced apart from one another and which are received in housing parts 16a, 16b. The housing parts 16a, 16b can be detachably connected to the housing 5a preassembled on the furniture body 2 via a fastening device (not shown). The articulated lever 7 is arranged in regions between the two bearing parts 17a, 17b through which the joint axis (A) runs. At least one of the, preferably both, bearing parts 17a, 17b has an angled arm 12 on which the further articulated lever 7a, which is separate from the at least one articulated lever 7, is pivotably mounted about the hinge axis (C). It is preferably provided that the boom 12 is arranged in areas outside the housing 5 a of the first fitting part 5.

The at least one articulated lever 7 has at least two sections 18a, 18b which are spaced apart from one another by the offset (DC) in a direction parallel to the articulation axes (A, B). The at least two sections 18a, 18b of the articulated lever 7 can each be designed to be essentially flat and oriented essentially parallel to one another. The two sections 18a, 18b of the

Articulated levers 7 can be connected to one another, for example, via a preferably multiple, angled or stepped transition section 19.

In the housing 6a of the second fitting part 6, a bearing 20 can be arranged, through which the hinge axes (B, D) run for the pivotable mounting of the articulated levers 7, 7a.

4 shows a possible application of the furniture drive 4 with a movable furniture part 3 which has a frame 21 and at least one decorative plate 22 arranged in the frame 21. The frame 21 can be formed, for example, from an aluminum profile and is designed to accommodate the decorative plate 22, preferably made of glass. The furniture body 2 can have a first top side 23 and the at least one movable furniture part 3 can have a second top side 3a oriented essentially parallel thereto, the top sides 23, 3a being spaced apart from one another by a joint 15 in a direction parallel to the hinge axes A, B are. It is preferably provided that a size of the joint 15 corresponds to the offset (DC) of the at least two sections 18a, 18b of the at least one articulated lever 7.

The set according to the invention is particularly suitable so that, for example, a kitchen manufacturer can stock up on two or more, preferably exactly three, types of furniture drives 4, each of which has a different offset (DC). Depending on a material thickness (M) of the furniture body 2 (for example 16 mm, 18 mm or 19 mm), depending on an offset (DC) to be selected, for example between 0.5 mm and 10 mm) and depending on the material properties of the movable furniture part 3 (for example wood material or decorative plate 22 made of glass), a fitter can select the appropriate furniture drive 4 from the set of two or more furniture drives 4 directly on site.

Claims

1. Furniture drive (4) for moving a furniture part (3) movably mounted relative to a furniture body (2), comprising:

- A first fitting part (5) for attachment to the furniture body (2),

- a second fitting part (6) for attachment to the movable furniture part (3),

- At least one articulated lever (7) which is articulated to the first fitting part (5) via a first hinge axis (A) and to the second fitting part (6) via at least one second hinge axis (B),

- wherein the at least one articulated lever (7) has at least two sections (18a, 18b) which are spaced apart from one another by an offset (DC) in a direction parallel to the articulation axes (A, B),

characterized in that the first fitting part (5) has a first imaginary central plane (P1) and the second fitting part (6) has a second imaginary central plane (P2), the central planes (P1, P2) in the direction parallel to the joint axes (A , B) are spaced apart.

2. Furniture drive according to claim 1, wherein the offset (DC) is between 0.5 mm and 10.0 mm, preferably between 1.0 mm and 7.0 mm.

3. Furniture drive according to claim 1 or 2, wherein the at least two sections (18a, 18b) of the articulated lever (7) are each essentially flat and aligned essentially parallel to one another.

4. Furniture drive according to one of claims 1 to 3, wherein the first hinge axis (A) has a first pin and the second hinge axis (B) has a second pin, the first pin of the first hinge axis (A) and the second pin of the second hinge axis (B) are offset from one another in the direction parallel to the joint axes (A, B).

5. Furniture drive according to one of claims 1 to 4, wherein the first fitting part (5) has a bearing device (17) with a first bearing part (17a) and at least one second bearing part (17b) spaced therefrom, wherein the at least one Articulated lever (7) is arranged in areas between the two bearing parts (17a, 17b).

6. Furniture drive according to claim 5, wherein at least one of the, preferably both, bearing parts (17a, 17b) has an angled arm (12) on which a further articulated lever (7a) separate from the at least one articulated lever (7) is pivotably mounted, preferably wherein the boom (12) is arranged in some areas outside a housing (5a) of the first fitting part (5).

7. Furniture drive according to one of claims 1 to 6, wherein the first fitting part (5) has a first contact surface (5b) to rest on or in the furniture body (2) and the second fitting part (6) has a second contact surface (6b) to rest on or in the movable furniture part (3), the first contact surface (5b) and the second contact surface (6b) being spaced apart from one another by a first distance (X1) in the direction parallel to the hinge axes (A, B).

8. Furniture drive according to claim 7, wherein the first fitting part (5) has a further contact surface (5c) to rest on or in the furniture body (2) and the second fitting part (6) has a further contact surface (6c) to rest on or in the movable furniture part ( 3), the further contact surfaces (5c, 6c) being spaced from one another by a second distance (X2) in the direction parallel to the joint axes (A, B), and the first distance (X1) and the second distance (X2 ) are of different sizes.

9. Furniture drive according to one of claims 1 to 8, wherein the first and second fitting parts (5, 6) are connected to one another via an articulated lever arrangement (11) which comprises the at least one articulated lever (7), the articulated lever arrangement (11) at least has four hinge axes (A, B, C, D), preferably with at least three of the at least four hinge axes (A, B, C, D) in all relative positions of the two fitting parts (5, 6) to one another outside a housing (5a) of the first Fitting part (5) are arranged.

10. Furniture drive according to one of claims 1 to 9, wherein the first and / or second fitting part (5, 6) are essentially cuboid, and / or are designed, at least partially, preferably essentially completely, in a recess in the furniture body (2) or to be arranged in the movable furniture part (3).

11. Set with a first furniture drive (4) according to one of claims 1 to 10 and at least one second furniture drive (4) according to one of claims 1 to 10, wherein the offset (DC) of the at least one articulated lever (7) of the first furniture drive ( 4) and the offset (DC) of the at least one articulated lever (7) of the second furniture drive (4) are of different sizes.

12. Furniture (1) with a furniture body (2) and at least one furniture part (3) mounted movably relative to the furniture body (2), the at least one movable furniture part (3) via at least one furniture drive (4) according to one of claims 1 to 10 is connected to the furniture body (2), preferably wherein the at least one movable furniture part (3) is pivotable about a vertically or horizontally aligned axis, and / or a frame (21) and a decorative panel (22) mounted therein or on it, preferably made of glass.

13. Furniture (1) according to claim 12, wherein the furniture body (2) has a first top side (23) and the at least one movable furniture part (3) has a second top side (3a) oriented essentially parallel thereto, the top sides (23, 3a) are spaced apart from one another by a joint (15) in a direction parallel to the joint axes (A, B), preferably where a size of the joint (15) corresponds to the offset (DC) of the at least two sections (18a, 18b) of the at least one Joint lever (7) corresponds.

14. Furniture according to claim 12 or 13, wherein the first fitting part (5) is arranged in or on a horizontally or vertically aligned furniture panel (2a) of the furniture body (2), preferably at least partially, preferably completely, in a recess of the furniture panel (2a ).