EP3234291A1

EP3234291A1 - Piece of furniture, in particular a cabinet unit

Info

Publication number: EP3234291A1
Application number: EP15823131.6A
Authority: EP
Inventors: Korle TORBEN; Gerd Noltemeier; Benjamin Milto
Original assignee: Kunststoff KG Nehl and Co
Current assignee: Kunststoff KG Nehl and Co
Priority date: 2014-12-18
Filing date: 2015-12-15
Publication date: 2017-10-25
Also published as: CN107223178A; DE102014018682B3; WO2016096119A1; US20180128032A1

Abstract

Piece of furniture, in particular a cabinet unit, having a furniture body which comprises side walls, a base and a cover wall and which can be closed and opened by means of a folding door arrangement 1 which has at least two folding door elements 2, 3 which can be pivoted towards one another about a horizontal pivot axis during an opening operation of the folding door arrangement 1 and can be pivoted away from one another about the horizontal pivot axis during a closing operation of the folding door arrangement 1, wherein one 3 of the at least two folding door elements 2, 3 is movably guided in the course of its opening pivoting movement along vertically oriented sliding guides 10 and the at least two folding door elements 2, 3 can be transferred into a substantially horizontally oriented raised opening intermediate position, from which they are movable through a horizontally oriented movement translationally along horizontal guides 14 into their opening end position within the furniture body, wherein at least one of the at least two folding door elements 2, 3 is movable into its raised opening intermediate position by a first motor drive 11 and from the opening intermediate position into its opening end position by a second motor drive 12.

Description

Furniture, in particular cupboard furniture

The invention relates to a piece of furniture, in particular a cabinet furniture, with a side walls, a bottom and a cover wall comprehensive furniture body which is closed and openable via a folding door assembly, the at least two in an opening operation of the folding door assembly about a horizontal pivot axis to each other and during a closing operation of the folding door assembly about the horizontal pivot axis away from each other pivotable folding door elements, wherein the at least two folding door elements guided in the course of their opening pivoting movement along vertically aligned sliding guides and in an elevated, substantially horizontally oriented opening intermediate position can be transferred from these by a horizontal aligned movement translationally along horizontal guides in their opening end position within the furniture body are movable.

CONFIRMATION COPY Furniture, especially cupboards such as overhead cupboards for kitchens, usually have doors that are pivotable about vertically oriented axes that protrude after a transfer to their open position in the kitchen and thereby can pose an obstacle for operators.

Moreover, it is known to pivot doors of such cabinets about a horizontal axis by a pivoting upward, and they also protrude in its open position in the kitchen space, but in an elevated position, so that it is not an obstacle for smaller people, however still pose a hindrance to tall people.

In addition, cabinets with folding doors are known, which have pivotable about horizontally oriented axes folding door elements that can be pivoted toward each other for an opening movement and away from each other for a closing movement. From DE 1925314 A, such a cabinet furniture with two hinged together hinged folding door elements is known, the lower folding door element has guide body, which engage in vertically aligned sliding guides, which are provided on the front inner sides of the side walls of the furniture body, and during the pivotal movement of the folding door elements towards each other slide vertically upwards in an opening intermediate position. In this case, the lower folding door element pivots toward the upper, so that they are aligned substantially horizontally in the opening intermediate position. From this opening intermediate position, the folding door elements pivoted toward each other can be displaced as a package into the interior of the cabinet so that they are located there in an upper storage area. fold the furniture body are located in their open position. The vertical guides go over in the upper area in horizontal guides, which remain at occupied opening end position of the folding door elements visible from the visible side of the furniture ago. The force required to open the folding door elements makes this cabinet construction difficult to handle, especially in the opening intermediate position due to the size of the folding door elements they require an increased effort to keep them in a horizontal position in order to then move them horizontally.

It is an object of the present invention, a piece of furniture, in particular a cabinet furniture of the type mentioned in such a way that the folding door elements with reduced force and operating costs from the closed position to be transferred to the opening end position.

To solve this problem, the furniture of the type mentioned is characterized in that the at least two folding door elements are movable from a first motor drive in its increased opening intermediate position and from the opening intermediate position of a second motor drive in its Öffnungsendstellung.

In order for a piece of furniture is provided in which using the first motor drive, the at least two folding door elements are to be transferred from its closed position into the raised opening intermediate position. This can be done without additional manual effort, since the first motor drive is used only for the pivoting of the at least two folding elements towards each other and the transfer of the at least two folding elements from its closed position into its vertically elevated and substantially horizontally oriented opening intermediate position has to ensure. It can be provided as the first motor drive two drive motors, which are synchronized with each other. However, it is also possible to have this accomplished by only one drive motor and to transmit its driving force on both sides of the lower folding door element of the at least two folding door elements, for example by traction means such as cables with associated cable drum. Have the at least two folding door elements reached their opening intermediate position, the second motor drive takes over the further drive and the movement process of the at least two folding door elements from the opening intermediate position into the opening end position, which are at least two Falttürelemente safely placed in the interior of the furniture body. In this case, the parts can also be designed and arranged such that the first motor drive together with the folding door elements is also transferred from the second motor drive into an end position in which it is located behind the two folding door elements in the interior of the furniture carcass.

It is particularly preferred if not only two folding door elements are provided, but three, so that the folding door elements can be made smaller by their respective Hocherstreckung in the respective closed position, so that even higher cabinets can also be equipped with electrically operated folding door elements at a manageable cabinet depth. In this case, the basic structure of the at least two folding door elements is preferably the same. These, in turn, can also have four-bar arrangements with which they can be pivoted, wherein a simple joint can be provided between the two folding door elements. The four-bar lever arrangement or the two four-bar lever arrangements on both sides of the lower folding door element assigned to the lower folding door element of the at least two folding door elements are preferably arranged on a guide body which can slide along in corresponding vertical guides and on which the traction means engage. This may have a further carrier, on each of which a connecting element of the third folding door element engages, which is taken during the opening movement of the motor and the lower folding door element to the opening intermediate position in which the third folding door element is not yet pivoted. Only when further moving into the furniture body of the at least two folding door elements which are to be pivoted towards one another is the second folding door element automatically moved toward the second folding door element by the second motor drive. For this purpose, guides or another suitable control element can be provided in order to support this pivoting movement of the third folding door element to the second folding door element. Thus, the third folding door element is successively pivoted toward the second folding door element during the horizontal translational movement of the at least two folding door elements, so that in the end position of the three folding door elements they are located as a package within the furniture carcass.

Another embodiment provides that the first motor drive from the second motor drive via the horizontal guides in one in the Möbelkor- Pus located rear end position and in a located in the furniture body front operating position can be transferred. It is also the case that the first motor drive ensures that the folding door elements are transferred to the opening intermediate position and the second motor drive then transferred the first motor drive and a package of folding door elements in the rear end position, after which the folding door elements together with the motor Drives are located in the furniture body interior.

This can be done in a particularly quiet and slip-free design in this further embodiment by a train element, in particular a pull rope, the first motor drive and the second motor drive are coupled in a particular manner such that the second motor drive with a quasi-endless running traction means (eg pull rope) brings the first motor drive via the horizontal guides together with the package from the folding door elements in the rear end position. For this purpose, a guide roller, but preferably two guide rollers are preferably provided on the second motor drive. The tension element is held on this guide roller, which is immovably coupled to the second motor drive, and likewise attached to the possibly second guide roller, to which then another end of the traction means (traction cable) is fastened. The traction means can be guided by the guide roller of the second motor drive via a deflection initially along the next, the second motor drive associated horizontal guide to a front mounting bracket, which is parallel to the first motor drive relatively within the furniture body from front to back and from behind is to move forward. This can the mounting bracket to be coupled to the first motor drive via a crossbar. About a deflection on this mounting bracket then the tension element can pass diagonally through the furniture body (starting from a position of the mounting bracket in the front region of the furniture body) and guided to a rear deflector, where it is in turn deflected in an orientation parallel to the horizontal guide on the first motor drive can be moved along. Then, the tension element is guided around the first motor drive in order to take this. For this purpose, special guide and / or fastening elements may be provided on the first motor drive. About a deflection on the first motor drive, the tension element can then run with its other end again diagonally through the furniture body and thereby cross the already diagonally guided region of the tension element and be led back to the second motor drive to there on the leadership or a second guide roller to be attached.

Depending on the direction of rotation of the second motor drive (clockwise, counterclockwise), one end region of the tension element can then roll off the guide roller assigned to this end region and the other end region of the tension element can be rolled up by the other guide roller of the second motor drive. This can then be exactly the opposite when the direction of rotation of the second motor drive, so that the previously rolled end area unrolled and rolled up the previously unwound end, each with one and the same tension element can perform a pulling, namely rolling movement depending on the direction of rotation of the second drive , with which one slip-free movement is possible. Depending on the direction in which pulls the pulling element, the first motor drive, which moves the Falttürelemente in the furniture body, is brought to the rear end position or from the rear end position in the forward position, after which the folding door elements in turn transferred to its vertical closed position be it by its own weight or be it by motor support by the first motor drive. The first motor drive can in turn provide by roll-up traction elements (traction cables) for the lifting movement of the folding door elements or provide at least three successive folding door elements pivoted upward movement of two folding door elements. For this purpose, the first motor drive is preferably provided with a first traction means and also with a second traction means, which are moved parallel and simultaneously, which acts on a traction means on a side region of at least one folding door element and the other traction means on the opposite side region.

Overall, this results in a very quiet slip-free operation with electric motor drives that build very small.

Further advantageous embodiments of the invention will become apparent from further dependent claims, the following description and the drawings. In the drawing show:

1 is a schematic sectional side view of an embodiment of a folding door assembly for a furniture according to the invention in the United Run the opening movement of the folding door assembly from its closed position into an opening intermediate position; the embodiment of the folding door assembly of Figure 1 in its opening intermediate position. the embodiment of Figures 1 and 2 of the folding door assembly beginning of the movement from the opening intermediate position into the opening end position. the embodiment of the folding door assembly according to Figures 1 to 3 at assumed end position of the folding door elements in its open / closed position and the closure flap in the course of its closing movement. the embodiment of Figure 4 with closed flap. schematically in a perspective partial view of the folding door assembly of the embodiments of Figures 1 to 5 from a view from the inside with the folding door assembly closed.

Fig. 7 partially enlarged perspective view from the rear of the second motor drive with a push chain; a perspective view of a side view from the rear of the folding door assembly in its opening end position;

Figure 9 is a perspective view of an alternative embodiment of a folding door assembly in the folded state of the folding door assembly and two motor drives, which are in rear end positions in the open position of the folding door assembly.

FIG. 10 shows the embodiment according to FIG. 9 in the raised opening intermediate position of the folding door elements; FIG.

11 shows the exemplary embodiment of the folding door arrangement according to FIGS. 9 and 10 at the beginning of an opening process of the folding door elements; a plan view of the embodiment of FIGS. 9 to 11 in the open position of the folding door elements under visualization of the terhalb moved into the furniture body folding door elements, and an analogous to Fig. 12 representation in the opening intermediate position of the folding door elements.

In Fig. 1 a generally numbered with 1 folding door assembly for a piece of furniture is shown. The furniture is not shown for reasons of clarity. provided and should have a furniture body, which is provided with side walls, a bottom and a top wall and a rear wall. This furniture can be designed as a piece of furniture, but also as a wall unit and have in its interior storage rooms and / or furnishings. In the exemplary embodiment shown, the folding door arrangement consists of an upper folding door element 2, a second or middle folding door element 3 and a lower folding door element 4. The folding door elements 2 and 3 are connected to one another via a hinge 5, a joint 6 also being present between the folding door element 3 and 4 is provided. The folding door element is to be pivoted in the direction of the arrow 2.1, the folding door element 3 in the direction of the arrow 3.1 and the folding door element 4 in the direction of the arrow 4.1. The folding door elements 2 and 3 are to be pivoted in each case via a four-bar arrangement 7 and 8, wherein the folding door element 3 has a guide body 9, which is guided in a vertically oriented sliding guide 10 up and down slidably. These guide bodies 9 are provided on both sides, that is to say on two vertical sliding guides 10 provided on the side walls of the furniture body.

It is provided a first motor drive, which is provided with the reference numeral 11 and a second motor drive 12, which is arranged in the rear area in a furniture body. The first motor drive 11, which may comprise, for example, an electric motor with a drive shaft, has on both sides of the furniture body a cable drum 13 to which a cable 14.1 is to be wound, which engages the guide body 9 of the folding door element 3. It may also be provided only a centrally arranged cable drum. The first motor drive 11 with its NEN cable drums 13 is guided in horizontal guides 14 via rollers 15, so that the first motor drive 11 with the cable drums 13 in the direction of the second motor drive 12 is to move from this with entrainment of the folding door elements 2, 3 and 4. Furthermore, is still one Push chain 16 in Fig. 1 to see (partially), which is guided in pulleys 16.1 and is driven by the second motor drive 12. The second motor drive 2 may have one or more electric motors which are synchronized with each other.

In Fig. 2, the folding door elements 2 and 3 have been transferred by pulling the folding door element 3 by means of the pull cable 14.1 from the motor drive 11 in an elevated position. They have the hitherto unverschwenkte third folding door element 4 with raised in an elevated position. This corresponds to an opening intermediate position of the folding door elements 2 and 3. From this position, the second motor drive 12 assumes the further movement of the folding door elements 2, 3 and 4 in their opening end position by the push chain 16 of the first motor drive together with the cable drum 13 the rolled-up cable 14.1 the is pulled in the direction of the second motor drive 12, wherein the third folding door element 4 enters guides 17 and also zuschwenkt in the direction of 4.1 on the second folding door element 3, after which the folding door elements 2, 3, 4 as a package along the horizontal guides 14 sliding in the opening end position can be brought by the push chain 16, the package of the folding door elements 2, 3, 4 moves into the space in the upper region of the folding door assembly and in the assembled state of this folding door assembly in the upper inner region of the furniture body. This is done by that of FIGS. 3 and 4 not visible lower run of the push chain 16, wherein the push chain 16 is thereby moved in the direction of arrow 16.2.

The push chain 16 also comes into contact with a closure cap 18, which is moved out of the upper guide 14 during the movement of the upper run of the push chain 16 up to an end stop and there brought under the action of gravity in the position shown in Fig. 5 is, in which the space in which the folding door elements 2, 3 and 4 are located, together with the first drive 11 is closed by the shutter 18.

Conversely, at the beginning of a closing movement of the folding door assembly 1, the cap 18 is initially moved by the opposite movement of the push chain 16 in its open position, after which the folding door elements 2, 3 and 4 are moved together with the drive motor 11 in turn from the interior of the folding door assembly 1 to to close the furniture body. This is done without additional effort of an operator. The motors can also be activated in automated sequence or by special controls.

FIGS. 9 to 13 show an alternative embodiment variant of the furniture and the folding door arrangement with the two motor drives 11 and 12. Fig. 9 shows the state of the folding door assembly, as it results when the folding door assembly is open, so the folding door elements 2, 3, 4 are folded in a package and they are located above the construction floor 1.1 within the cabinet. It can be seen that the second motor drive 12 in the rear area of the construction floor 1.1. However, also the first motor drive 11, which has been moved in this position by the second motor drive along the horizontal guides 14 from a front operating position to this rear end operating position. In addition, a mounting bracket 20 can be seen, which is connected via a cross-beam 21 coupled with the first motor drive 11. In the first motor drive 11 traction means (traction cables) 22 and 23 in corresponding guide rollers up and down, so that the folding door elements are to be raised via the motor drive 11, as shown in FIG. 11. The traction means 23 is guided via the cable guide 24 from the corresponding guide roller of the first motor drive 11 to the mounting bracket 20 and can be guided from there (Fig. 11) to the corresponding attachment point on the folding door element 3, so that the tension elements 22 and 23 at attack each opposite side regions of the folding door element 3.

In Fig. 10, the position of the folding door elements 2, 3 and 4 is shown in the opening intermediate position. In this position, the motor drive 12 has become active and has the first motor drive 11 and the mounting bracket 20, which are motion-synchronized via the traverse 21, transferred from the apparent from Fig. 9 rear end position to the front position on the construction floor 1.1, in which are the folding elements 2, 3 and 4 in the opening intermediate position. For this purpose, two guide rollers are provided on the motor drive 12, wherein one end of a traction means is attached to each guide roller. The motor drive 12 can be driven in the same direction as the motor drive 11 in opposite directions, so that the corresponding guide rollers once clockwise and once rotate counterclockwise to exercise the appropriate retraction movement or extension movement of the folding door elements 2, 3 and 4 can. Of the guide roller (not shown in detail) of the second motor drive 12, the tension element (preferably the pull rope) is guided over a first deflection 25 and then extends parallel to the right in Fig. 10 horizontal guide, there comes to the mounting bracket 20, where it is guided along so that it can realize a Bewegungsmitnahme.

Thereafter, it is deflected by a further deflection 26 and extends diagonally across the construction floor 1.1 to a further deflection 27, which is therefore on the opposite side of the construction floor 1.1 in the rear region of the construction floor 1.1. There, the tension element is deflected again and extends parallel to the left in Fig. 10 horizontal guide 14, then passes to the first motor drive 11, where it is again deflected under Bewegungsmitnahmemöglichkeit the corresponding first motor drive

11 and then again passes diagonally across the construction floor 1.1 extending at 28 in a guide roller of the second motor drive 12th

If the motor drive 12 moves counterclockwise, the end of the traction means is at 28 from the local leadership of the second motor drive

12 pulled, the first end of the traction device rolls off the other role. It is therefore a continuous rolling and unwinding of the respective end of the traction means with appropriate entrainment of the first motor drive 11, the mounting bracket 20 and the folding door elements 2, 3 and 4.

Thus, depending on the direction of rotation of the second motor drive a quiet slip-free movement of the aforementioned parts is possible.

Fig. 1 shows the corresponding parts again during the beginning of an opening movement.

In FIGS. 12 and 13, the course of the position of the respective motor drives 11 and 12 and of the mounting bracket once analogous to FIG. 9 and once analogous to FIG. 10 is shown. There, it can be seen that in Fig. 12, the first motor drive is located in the rear left end portion of the construction floor 1.1, as well as the mounting bracket 20, whereas in Fig. 13, the first motor drive 11 is located in the front area of the construction floor 1.1, as well the mounting bracket 20.

Claims

claims:

1 . Furniture, in particular cupboard furniture, with a side walls, a bottom and a cover wall comprising furniture body to be closed and opened by a folding door assembly (1), the at least two in an opening operation of the folding door assembly (1) about a horizontal pivot axis to each other and during a closing operation of the folding door assembly (1) about the horizontal pivot axis away from each other pivotable folding door elements (2, 3), wherein one (3) of the at least two folding door elements (2, 3) in the course of their opening pivoting movement along vertically aligned sliding guides (10) movable is guided and the at least two folding door elements (2, 3) in a substantially horizontally oriented increased opening intermediate position can be transferred, from which they are movable by a horizontally oriented movement translationally along horizontal guides (14) in their Öffnungsendstellung within the furniture body, dadur Ch characterized in that at least one of the at least two folding door elements (2, 3) of a first motor drive (1 1) in its raised opening intermediate position and from the opening intermediate position of a second motor drive (12) is movable into its opening end position.

2. Furniture according to claim 1, characterized in that the folding door assembly (1) comprises a third folding door member (4) pivotally connected to the folding door element (3) of the at least two folding door elements (2, 3), in the course of the transfer the at least two folding door elements (2, 3) from the opening intermediate position in the opening end position on the adjacent folding door element (3) aligned pivotally and by the second motor drive (12) together with the at least two folding door elements (2, 3) in the opening end position within the Furniture carcass is movable.

3. Furniture according to claim 2, characterized in that on the furniture body, a guide (17) for supporting the pivoting movement of the third folding door element (4) is provided.

4. Furniture according to one of claims 1 to 3, characterized in that the at least two folding door elements (2, 3) via four-bar arrangements (7, 8) are each connected to a guide body (9), of which the guide body (9) in one of vertically oriented sliding guides (10) is movably guided.

5. Furniture according to one of claims 2 to 4, characterized in that the third folding door element (4) adjacent folding door element (3) of the at least two folding door elements (2, 3) in the vertically aligned sliding guides (10) via two guide body (9) is guided translationally and in the course of the translational movement in the vertically oriented sliding guides (10), the third folding door element (4) moves with.

6. Furniture according to one of claims 1 to 5, characterized in that the first motor drive (11) endless traction means (14.1) and at least one traction mechanism drum (13), at the transfer of the at least two folding door elements (2, 3) from the Opening intermediate position in the opening end position of the second motor drive (12) in a translationally offset end position within the furniture body can be transferred.

7. Furniture according to claim 6, characterized in that a traction cable is provided as traction means (14.1) and the traction mechanism drum (13) is designed as a cable drum.

8. Furniture according to claim 6 or 7, characterized in that the traction means (14.1) of the first motor drive (11) on the guide body (9) of the vertically movable and pivotable folding door element (3) of the at least two folding door elements (2, 3 ) attacks.

9. Furniture according to claim 7 or 8, characterized in that the at least two folding door elements (2, 3) in the course of their movement from the opening intermediate position into the opening end position via guide main body of the first motor drive (11) in the horizontal guides (14) within the furniture body are guided.

10. Furniture according to claim 9, characterized in that the guide main body of the first motor drive (11) via rollers (15) in the horizontal guides (14) are supported rollably.

11. Furniture according to one of claims 1 to 10, characterized in that the second motor drive (12) disposed within the furniture body and via drive transmission means (16) with the at least two folding door elements (2, 3) is connected.

12. Furniture according to claim 11, characterized in that the drive transmission means (16) are designed as push chains.

13. Furniture according to claim 11 or 12, characterized in that the drive transmission means (16) engage guide main bodies of the first motor drive.

14. Furniture according to one of the preceding claims, characterized in that the at least two folding door elements (2, 3) are arranged in their opening end position in an upper furniture carcass space through a closure cover (18) in the open position of at least two folding door elements (2, 3) is closable.

15. Furniture according to claim 14, characterized in that the closure cover (18) can be transferred from its closed position closing the space in an opening position located within the furniture body.

16. Furniture according to claim 13 and claim 15, characterized in that the closure cover (18) with the push chains (16) of the second motor drive (12) is connected and by the push chains (16) in the course of the opening movement of the at least two folding door elements (16). 2,3) is transferred from the opening intermediate position into the opening end position of the push chains (6) in its closed position and during the transfer of the at least two folding door elements (2, 3) from the opening end position in the opening intermediate position of the Verschließstellung in their located within the furniture body opening position is movable.

17. Furniture carcass according to one of claims 1 to 16, characterized in that the first motor drive (11) of the second motor drive (12) via the horizontal guides (14) in a located in the furniture body rear end position and in a in the furniture carcass located forward operating position is convertible.

18. Furniture carcass according to claim 17, characterized in that the first motor drive (11) has traction means which are guided at least to one of the folding door elements (2, 3) and are fixed there to this.

19. Furniture according to claim 17 or 18, characterized in that on a different than the horizontal guide on which the first motor drive () is moved along, a mounting bracket is movably guided by the second motor drive (12) from a front, located in the furniture body operating position in a located in the furniture body rear end position can be transferred.

20. Furniture according to one of claims 17 to 19, characterized in that on the second motor drive (12) on a motorally driven in a clockwise and counterclockwise direction guide roller a deflectable tension element is attached, the second drive body via a deflecting element to the Mounting bracket and from the mounting bracket via a deflecting element in diagonal orientation through the furniture body running in the region of the horizontal guide (14) of the first motor drive (1) is guided and in turn deflected and along the horizontal guide (14) to the first motor drive

(11) and is guided by the first motor drive (11) in diagonal alignment with the other diagonal orientation of the deflectable tension element to the second motor drive (12), so that the deflectable tension element depending on the direction of rotation of the second motor drive (12 ) at one end to the first motor drive (11) rolling and at the other end aufrollend on the second motor drive (12) can be fixed.

21. Furniture according to claim 20, characterized in that the deflectable tension element with respective end portions of pulleys of the second drive body

(12) is attachable.

22. Furniture according to one of claims 17 to 20, characterized in that the first motor drive and the mounting bracket are coupled for movement via a cross-beam.

23. Furniture according to one of claims 1 to 22, characterized in that the traction means is designed as a traction cable.