EP0744141A2 - Element for modular furniture system - Google Patents

Abstract

The furniture element is box-shaped and has a closed polygonal horizontal cross-section defined by a back plate (13), two sides (14) and a front plane (15,16). At least one side wall runs in the horizontal cross-section at an angle other than 90 degs. to a front plane. The two side walls can run at the same angle to the front plane. The horizontal cross-section is symmetrical relative to the angle dissecting line of the straight line running through the side walls. The side walls can be different width in the horizontal. At least the front side corner points (17,18) of the side walls can be arranged on a circular arc section of a horizontally aligned circle (12).

Description

The invention relates to a furniture element for a furniture extension system, which furniture element is essentially box-shaped and has a closed polygonal horizontal cross section delimited by at least one back plane, by at least two side planes, in particular designed as side walls, and by at least one front plane. Furthermore, the invention relates to a furniture extension system which is composed of the furniture elements according to the invention.

Such furniture elements are used in particular for the construction of cupboards, shelves, sideboards or the like. By means of differently designed and / or dimensioned furniture elements which are coordinated with one another, furniture can thus be erected which corresponds to the individual needs and requirements. In general, the furniture elements are cuboid and have a rectangular horizontal cross section. The furniture elements are then set up along a straight wall and connected to each other. Furniture elements of different depths, for example shelf elements and wardrobe elements, can also be combined with one another, since the vertical side walls always run parallel to one another. The front levels of the individual elements of the furniture thus created always run parallel to the room wall.

The vertical back plane can be free, for example, with shelf elements, or there can be a back wall be provided which runs in or parallel to the back plane. The vertical front level is free in the case of shelf elements, whereas in the case of cupboard elements generally flat door leaves are provided which run in or parallel to the front level. The door leaves can consist of different materials and can be of different types. In any case, a coordinated furniture extension system offers maximum flexibility and many options for variation and adaptation.

Nowadays, round shapes are increasingly required and used in building architecture and also in room furnishings. However, the creation of furniture, in particular furniture extension systems, with a round or round-looking front is only possible with great effort, and therefore only individual furniture is usually built.

There is a furniture extension system of the type described above for creating furniture with a round front, in which the individual furniture elements have parallel side walls that are of different depths, so that the front plane is angled to the rear plane. By appropriately combining the individual elements, a piece of furniture can be erected with a front that corresponds to a polygon and is therefore at least approximate to a round shape. For a symmetrical piece of furniture, two furniture elements that match each other in mirror image must be combined with one another. This is achieved in the known furniture extension system by turning a furniture element upside down by 180 °. It is obvious that such a furniture extension system requires a large number of differently dimensioned furniture elements in order to enable a large number of combinations. Furthermore, it must be ensured that the fastenings of the individual furniture elements in both positions, ie standing upright and in the twisted position, fit together. On the one hand, this increases the manufacturing effort. On the other hand, the construction of such a furniture extension system requires some skill.

The invention has for its object to provide a furniture element for a furniture extension system in which a round front can be achieved by a combination of essentially identical furniture elements.

The object is achieved according to the invention in that in the horizontal cross section at least one side wall extends at an angle deviating from 90 ° to a front plane. It is expedient here that the opposite side walls run at the same angle to a front plane. Such an angled course of at least one side wall to a front plane has the advantage that the round front is achieved in that the furniture elements are placed side by side on the side wall. Any number of furniture elements can therefore be placed next to each other, whereby any size furniture can be built. Depending on the choice of the angle, there is either a convex or a concave shape of the front with respect to the room wall on which the furniture is placed. A convex course is achieved at a preferred angle of approximately 80 ° to 90 ° and a concave course at an angle of 90 ° to 100 °.

In an advantageous embodiment it is provided that the horizontal cross section is symmetrical with respect to the bisector of the straight line running through the side walls. This has the advantage that the individual furniture elements can be completely identical in cross-section and only differ in height, for example. In particular, the furniture elements can have the same depth, so that the side walls have the same width. On the one hand, this significantly reduces the manufacturing effort. On the other hand, the furniture elements, for example with different heights, can be combined with one another without impairing the uniform, round-acting front view.

However, it can also be provided that the side walls have different widths in the horizontal. It can be useful if one side is less deep than that of the corresponding symmetrical furniture element. This has the advantage that when such a furniture element is used as the outer furniture element, the inevitable distance between the middle furniture elements and the wall can be reduced. This means that the space can be better used.

For furniture elements by means of which a piece of furniture approximating a circular shape can be built up, it is provided that, viewed in horizontal cross section, the front lateral corner points of the side walls are at least approximately arranged on a circular arc section of a horizontally extending enveloping circle and that the side walls are at least partially and run at least approximately along and / or parallel of circular rays that run through the center of the enveloping circle and the front lateral corner points. Here too, the side walls run at an angle to the front level that deviates from 90 °. Such a design of the furniture element has the advantage that the individual furniture elements can simply be arranged next to one another and there is always a polygonal line running along a circular arc section, which is formed by the individual front planes. In particular, a uniformly rounded front view is always achieved.

The center point of the enveloping circle can lie at a distance from the rear plane on its side facing away from the front plane. This creates a piece of furniture whose front levels are convex with respect to the room wall. If the center of the enveloping circle is on the other side, i.e. at a distance from the front level on the side facing away from the back level, furniture is produced whose front is concave with respect to the room wall.

In an expedient embodiment of the invention it is provided that the horizontal cross-section essentially corresponds to a trapezoid. This creates a furniture element with a single front level in which, for example, a door leaf can be arranged.

In a particularly advantageous embodiment, it is provided that the horizontal cross-section essentially corresponds to a pentagon, the fifth corner point being arranged at least approximately centrally between the two lateral front corner points on the circular arc section of the enveloping circle. As a result, two front levels running at an angle to one another are formed, in which, for example, two door leaves can run. This has the advantage that a furniture element with a relatively large width can be provided for holding large objects without a relatively large straight front plane being required, which would prevent the round shape from being approximated by a polygon.

It is expedient that the ratio of the width of a front plane to the radius of the enveloping circle is 1:10 to 1:35, in particular 1:15 to 1:25. Through this ratio it can be achieved that on the one hand a round-acting front of the furniture extension system is generated. On the other hand, the cross-section deviates only slightly from the rectangular shape, so that a furniture element could even be set up on its own without creating a disturbing visual impression. Furthermore, the inevitable distance to the wall of the room remains relatively small even when a large number of furniture elements are assembled, so that the space can be used well.

The furniture extension system according to the invention has at least two furniture elements which are designed in accordance with the above statements and whose respectively facing side walls abut one another and can be connected to one another. It can be provided in an advantageous manner that the furniture extension system is composed of at least one furniture element with an essentially trapezoidal horizontal cross section with a front plane and at least one furniture element with an essentially pentagonal horizontal cross section with two front planes, the widths of the respective front planes and the radius of the enveloping circle being the same. This has the advantage that the versatility of the furniture extension system can be increased further. Since the ratio of the width of the front plane of the furniture element trapezoidal in cross section and a front plane of the furniture element pentagonal in cross section to the radius of the common enveloping circle match, a uniform curvature is achieved even when assembling the furniture elements of different widths. The grid size can thus be reduced, so that an increased possibility of adaptation to existing rooms is achieved.

In a further embodiment of the invention it is provided that spacer elements are arranged between the side walls of two adjacent furniture elements in the front and / or in the rear area. This has the advantage that the angle between the furniture elements can be changed, for example to create flatter or stronger curvatures.

According to a further embodiment it is provided that at least two adjacent furniture elements of the same height are covered by a single horizontal cover plate, the front edge of which runs along an arcuate section of a circle which is concentric with the enveloping circle. This supports the round appearance of the entire furniture.

It can be provided that the cover plate has essentially the shape of a circular section. As a result, the free space between the furniture elements and the generally straight wall of the room can be covered. Furthermore, it may be appropriate that the side edges of the cover plate run parallel to the side walls of the outer furniture elements.

It is obvious that with such a furniture element according to the invention, a furniture extension system can be created which, like a conventional furniture extension system, can be assembled in a simple and versatile manner and at the same time has the advantage of a round front. In particular, furniture elements with different depths can also be combined with one another. It can be provided that the deeper furniture elements are arranged in the middle of the entire piece of furniture, so that the otherwise existing space can be optimally used. The transition to the less deep furniture elements is then smooth without any protruding protruding edges.

Fig. 1a, b

jeweils ein Möbelelement gemäß der Erfindung,

Fig. 2

ein Möbelelement gemäß der Erfindung,

Fig. 3

ein Möbelelement gemäß einer anderen Ausführungsform der Erfindung,

Fig. 4

ein Möbelelement gemäß einer weiteren Ausführungsform der Erfindung,

Fig. 5 - 10

verschiedene Kombinationsmöglichkeiten von Möbelelementen gemäß der Erfindung, und

Fig. 11

ein Konstruktionsschema eines Möbelelementes gemäß der Erfindung.

The invention is explained in more detail below with reference to the schematic drawing, in which only the horizontal cross sections of the furniture elements are shown for the sake of clarity. The heights of the individual furniture elements can also be dimensioned differently. Show it:

Fig. 1a, b

each a furniture element according to the invention,

Fig. 2

a furniture element according to the invention,

Fig. 3

a furniture element according to another embodiment of the invention,

Fig. 4

a furniture element according to a further embodiment of the invention,

5 - 10

different combinations of furniture elements according to the invention, and

Fig. 11

a construction scheme of a furniture element according to the invention.

The floor plan of a furniture element 1 shown in FIG. 1a has a back plane 2, a front plane 3 and two side walls 4, 5. The side wall 4 extends at an angle δ deviating from 90 ° to the front plane 3. This has the effect that by placing a plurality of such furniture elements 1 next to one another, the respective front planes 3 run along a polygonal path, thus producing a round-looking front. The layout of a furniture element 6 shown in FIG. 1b essentially corresponds to that of the furniture element 1, but the opposite side walls 7 run at the same angle δ to the front plane 3.

Further possible embodiments are explained below with reference to FIG. 11. In Fig. 11, the construction diagram of a furniture element 10 with a pentagonal plan is shown in the upper half 11a and in the lower half 11b the construction diagram of a furniture element 11 with a trapezoidal plan is shown with the aid of an enveloping circle 12 (construction circle). To avoid misunderstandings, it is pointed out that, for reasons of clarity and clarity, the ratio of the radius r to the width b of the front plane is not necessarily shown to scale.

The furniture element 10 shown in the upper half 11a has a back plane 13, two side walls 14 and two front planes 15, 16, which delimit a closed polygonal horizontal cross section. The front lateral corner points 17, 18 of the cross section lie on a circular section of the construction circle 12.

), wobei α der Winkel ist, der von den beiden Kreisstrahlen 19, auf denen die Seitenwände 14 liegen, eingeschlossen wird.The side walls 14 run according to their depth along circular rays 19 which run through the center 20 of the construction circle 12 and the corner points 17 and 18, respectively. As a result, an angle β is included between the back plane and the side walls, which is larger than 90 °, while between the individual front planes 15, 16 and the associated side walls 14 an angle γ is included which is smaller than 90 °. Due to the construction geometry, the angle β corresponds to the sum of 90 ° and α / 2 ( $\text{β = 90 ° + α / 2}$

), where α is the angle that is enclosed by the two circular rays 19 on which the side walls 14 lie.

) entspricht.The furniture element 10 has a pentagonal cross section, and the fifth corner point 21 is also arranged centrally between the two lateral corner points 17 and 18 on the circular section of the construction circle 12. As a result, the two front levels 15 and 16 are formed, which run at an angle to each other. The front planes 15 and 16 are at an angle δ deviating from a right angle to the respective side walls 14. Because of the construction geometry, it follows that the angle δ of the difference of 90 ° and α / 4 ( $\text{δ = 90 ° - α / 4}$

) corresponds.

It is obvious that the furniture element 10 approximates a circular shape by means of a polygon that is composed of the two front levels 15, 16. In particular, the aspect ratios can be chosen so that the ratio of the width b of a front plane to the radius r is approximately 1:10 to 1:35. The angle α can be approximately between 2 ° and 10 °. For the construction of a furniture element with a grid dimension of b = 0.4 m, the radius r of the construction circle 12 is between 4 and 14 m, depending on the desired degree of curvature.

The floor plan of the furniture element 10 is completely symmetrical to the bisector 25 of the two circular rays 19 of the construction circle 12. As a result, the furniture element 10 can be used in a versatile and universal manner.

und der Winkel $\text{δ' = 90° - α'/2}$

ist. Der Grundriß des Möbelelementes 11 ist ebenfalls symmetrisch zu der Winkelhalbierenden der Kreisstrahlen, entlang welchen die Seitenwände 24 verlaufen.In the lower half 11b of FIG. 11, the floor plan of a furniture element 11 with only one front plane 22 is shown. The furniture element 11 has a back plane 23 and two Side walls 24, which delimit a trapezoidal horizontal cross section. The angles α ', β' and δ 'are set, as in the construction scheme shown in the upper half 1a, depending on the desired degree of curvature and the resultant ratio of the width b' of the front plane to the radius r of the construction circle 12. Specifically, this means that the angle $\text{β '= 90 ° + α' / 2}$

and the angle $\text{δ '= 90 ° - α' / 2}$

is. The floor plan of the furniture element 11 is also symmetrical to the bisector of the circular rays along which the side walls 24 run.

In the embodiment shown in the lower half 11b of FIG. 11, the width b of the front plane 22 and the radius r of the construction circle 12 correspond to those of the upper half 11a. This means that the individual furniture elements can be easily combined with each other, since the same curvature is achieved by placing them side by side. In particular, due to the geometry, the angles δ and δ 'match. This allows the grid size of the furniture extension system to be reduced.

In principle, it is of course also possible to provide furniture elements which have a correspondingly designed cross section with more than five corners. The number of front levels would then increase accordingly. However, this will make a single piece of furniture too large and the production of the base plate would be much more complex. Furthermore, there is then a problem in designing the middle front level as a door leaf, since there is no stop there.

In the construction described above, the center point 20 of the construction circle 12 lies on the side of the rear plane facing away from the front plane, so that a piece of furniture is formed which is convex with respect to the room wall. In principle, it is of course also possible that the center of the construction circle on the back level opposite side of the front level. In this way, furniture that is curved in exactly the opposite direction can be produced.

2 to 4, different furniture elements are shown on their own, which are used in the combination examples shown in FIGS. 5 to 10 and are designed in accordance with the construction scheme according to FIG. 11. The furniture element 30 shown in FIG. 2 corresponds to the furniture element 10 shown in the upper half 11a of FIG. 11. The front levels 31, 32 of the furniture element are designed here as door leaves which are attached to the side walls 33. The furniture element 30 is symmetrical and has a relatively large width, so that even large objects can be accommodated therein. The outer shape of the polygon, through which the circular shape is to be approximated, is not influenced by the angular course of the door leaves to one another.

In Fig. 3, a furniture element 34 is shown that corresponds to the furniture element 11, which is shown in the lower half 11b of Fig. 11. The furniture element 34 has a front plane 32 designed as a door leaf and also two side walls 33. With the same front width, this results in a furniture element that is approximately half the size of the furniture element 30. This allows the possible variations to be increased.

The furniture element 35 shown in FIG. 4 essentially corresponds to the furniture element 30, but one side wall 36 is shorter, ie less deep than the other side wall 37. However, the side walls form the same angle as in the symmetrical furniture element 30. This furniture element can preferably be used as the outer furniture element of a built-up piece of furniture, since the distance between the room wall and the middle furniture element is reduced by the shortened outermost side wall.

When using the individual furniture elements 30, 34 and 35 in a furniture extension system, it is provided that the width b of the respective front levels and also the ratio of the width to the radius of the construction circle correspond. As a result, the individual furniture elements or several furniture elements of the same type can be combined with one another without further ado, without the uniformity of the polygon being disturbed.

5 to 10 different combinations of furniture elements are shown.

Fig. 5 shows two identical furniture elements 30, which are set up side by side. 6, the entire piece of furniture is composed of four identical furniture elements 30. In the exemplary embodiment according to FIG. 7, four furniture elements are also present, but the asymmetrical furniture elements 35 are provided as outer furniture elements. It is evident in comparison to the furniture in FIG. 6 that the distance a to the room wall 40 can be reduced by the shortened side walls 36 of the furniture elements 35 on the outer sides of the furniture.

In the embodiment shown in FIG. 8, two furniture elements 30 are combined with a "half" furniture element 34. This means that intermediate widths of the entire piece of furniture can also be created. The furniture element 34 can of course also be arranged between the two furniture elements 30.

FIG. 9 shows a combination of the furniture elements according to the invention with conventional, rectangular furniture elements 41, 42. By using, for example, two furniture elements 30 between two different depth conventional furniture elements 41 and 42, a smooth transition can be created. Furthermore, it is of course also possible that the furniture elements 30 in a corner of the room are arranged so that a side wall of the furniture rests against a room wall.

10 shows a further embodiment of an assembled piece of furniture, in which furniture elements with different depths have been combined with one another. The middle three furniture elements 44 have greater depths and are designed, for example, as wardrobes. As a result, the space 43 between the wall of the room and the furniture can be used effectively.

In the embodiments shown in the figures, the side walls of the individual furniture elements lie flat against one another. It is also possible for spacing elements to be arranged between the side walls in the region of the rear plane and / or in the region of the front plane in order to vary the angle between the individual elements. This allows the furniture extension system to be adapted more flexibly. For the sake of clarity, the spacer elements are not shown in the drawing.

It was assumed above that a full furniture element 30, 34 or 35 is arranged as the extreme furniture element. It is of course also possible that, in particular while maintaining both the angle between a front plane and a side plane and the width of a front plane, at least the outermost furniture element tapers further in terms of its depth in the direction of the outside of the entire furniture. The rear wall can run at least partially parallel to the room wall. It can be provided that the outermost side wall almost disappears and, for example, only serves as a post for the attachment of a front panel, or that the front level directly meets the rear level. The entire piece of furniture then essentially corresponds to a complete circular section in the horizontal cross section. These edge furniture elements can be used, for example, as cupboards with reduced depth or only as facings be formed, which further supports the round visual impression.

The furniture elements 30, 34 and 35 are each matched to one another with regard to their horizontal cross section. Basically, it is possible that the individual furniture elements of a composite piece of furniture are of different heights. But it is also possible that the furniture elements have the same height. In this case, it is expedient to provide the entire furniture with a horizontal cover plate 45, which covers at least two furniture elements. The cover plate 45 is shown in dashed lines in FIGS. 5 to 10. The front edge 46 of the cover plate 45 can run along a circular arc section of a circle that is concentric with the construction circle 12. The cover plate can have the shape of a circular section. It is of course also possible that the side edges 47 of the cover plate 45 run parallel to the side walls of the furniture. This can support the round optical effect of the entire furniture.

Above it was assumed that two side walls are required for a furniture element. It is of course also possible in the context of a furniture extension system that only one intermediate wall is arranged between two furniture elements, which is followed by a laterally open furniture attachment element. The page level would be free in this case.

The connecting elements of the individual furniture elements with each other and also the hinges for the possibly attached door leaves are not shown in the drawing for the sake of clarity. Such construction elements are, however, familiar to the person skilled in the art and therefore do not require any further explanation. It can be provided that a base base plate is made of a rectangle, which on the sides and on the front edge according to the geometric conditions for obtaining the desired horizontal cross-section is cut off. The side walls can be attached to the top of the base plate or laterally to the front edges of the base plate. In the latter case, the base plate would have to be shortened somewhat laterally in parallel, so that the side walls run at least approximately along the circular rays. Depending on the thickness of the side walls, this can also be dispensed with, since the side walls still run parallel to the circular rays.

Reference symbol list:

1

Furniture element

2nd

Back plane

3rd

Front level

4th

Side wall

5

Side wall

6

Furniture element

7

Side wall

10th

Furniture element

11

Furniture element

12th

Construction circle

13

Back plane

14

Side wall

15

Front level

16

Front level

17th

Corner point

18th

Corner point

19th

Circular ray

20th

Focus

21

Corner point

22

Front level

23

Back plane

24th

Side wall

25th

Bisector

30th

Furniture element

31

Front level

32

Front level

33

Side wall

34

Furniture element

35

Furniture element

36

Side wall

37

Side wall

40

Room wall

41

Furniture element

42

Furniture element

43

Space

44

Furniture element

45

Cover plate

46

Leading edge

47

Side edge

a

distance

b

width

r

radius

α

angle

β

angle

δ

angle

Claims (16)

Furniture element for a furniture extension system, which furniture element (1, 6, 10, 11, 30, 34, 35) is essentially box-shaped and one through at least one rear level (2, 13, 25), at least two side levels, in particular as side walls (4, 5, 7, 14, 24, 33, 36, 37) and closed polygonal horizontal cross section delimited by at least one front plane (3, 15, 16, 31, 32), characterized in that at least one side wall in the horizontal cross section runs at an angle (δ) deviating from 90 ° to a front plane. Furniture element according to claim 1, characterized in that the opposite side walls run at the same angle (δ) to a front plane. Furniture element according to claim 1 or 2, characterized in that the horizontal cross section is symmetrical with respect to the bisector (25) of the straight line running through the side walls. Furniture element according to claim 1 or 2, characterized in that the side walls (36, 37) have different widths in the horizontal. Furniture element according to one of claims 1 to 4, characterized in that the angle between the front plane and the side wall is 80 ° -90 ° for convex furniture or 90 ° -100 ° for concave furniture with respect to a room wall. Furniture element according to one of claims 1 to 5, characterized in that at least the front lateral corner points (17, 18) of the side walls are arranged at least approximately on a circular arc section of a horizontally extending enveloping circle (12) and that the side walls are at least partially and at least approximately along and / or run in parallel from circular rays (19), which run through the center point (20) of the enveloping circle and the front lateral corner points. Furniture element according to one of claims 1 to 6, characterized in that the horizontal cross section essentially corresponds to a trapezoid. Furniture element according to one of claims 1 to 7, characterized in that the horizontal cross-section essentially corresponds to a pentagon, the fifth corner point (21) being arranged at least approximately centrally between the two lateral front corner points on the circular arc section of the enveloping circle. Furniture element according to one of claims 1 to 8, characterized in that the ratio of the width (b) of a front plane to the radius (r) of the enveloping circle is 1:10 to 1:35. Furniture element according to one of claims 1 to 9, characterized in that the ratio of the width of a front plane to the radius of the enveloping circle is 1:15 to 1:25. Furniture extension system with at least two furniture elements according to claims 1 to 10, the respective side walls of which can be connected to one another. Furniture extension system according to claim 11, characterized in that the furniture extension system is composed of at least one furniture element (34) with an essentially trapezoidal horizontal cross section with a front level and at least one furniture element (30) with an essentially pentagonal horizontal cross section with two front levels, the Widths of the respective front levels and the radius of the enveloping circle match. Furniture extension system according to claim 11 or 12, characterized in that spacer elements are arranged between the side walls of two adjacent furniture elements in the front and / or in the rear area. Furniture extension system according to one of Claims 11 to 13, characterized in that at least two adjacent furniture elements of the same height are covered by a single horizontal cover plate (45), the front edge (46) of which runs along an arcuate section of a circle which is concentric with the enveloping circle. Furniture extension system according to one of claims 11 to 14, characterized in that the cover plate has essentially the shape of a circular section. Furniture extension system according to one of claims 11 to 15, characterized in that the side edges (47) of the cover plate run parallel to the side walls of the outer furniture elements.

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