DE102012103596A1 - Miter connection for connecting two furniture panels of shelf system cuboidal furniture element, has connecting elements connected by movement directed along end sides in insertion direction in form-locking or frictional engagement manner - Google Patents

Abstract

The miter connection has a connecting element (1), which is fastened in a mitered end side of a furniture panel, where another connecting element is fastened in the are of the mitered end side of another furniture panel. The two connecting elements are connected by a movement directed along the end sides in an insertion direction (9) in a form-locking manner or in a frictional engagement. Each connecting elements have a main portion (7) and a to-be angled portion (3). An independent claim is included for a cuboidal furniture element.

Description

The invention relates to a miter joint for furniture panels according to the preamble of patent claim 1.

To furniture panels, e.g. Shelf side parts and shelves to connect with each other, it is known to cut miter their end faces, so that the lateral end faces are employed at 45 ° to an outer and at 135 ° to an inner surface of the furniture panel. Thereby two furniture panels, e.g. a shelf side part and a shelf, are attached to each other at 90 °, the two mitred end faces abut each other.

The DE 31 17 610 A1 discloses a corner joint for mitred side panels, eg, a shelf side panel and a shelf, to an open hollow body for furnishing or exhibition purposes. In this case, metallic insertion strips are inserted into the inner corner regions of the composite side parts. These are rectangular and simultaneously engage in the two side panels. For this purpose, guide rails are incorporated into the side parts, in which the insertion strips are inserted positively.

A disadvantage of such Gehrungsverbindungen for furniture panels are the expansive and clearly visible fasteners and consuming recesses to be made in the side panels.

The DE 198 27 597 A1 shows a shelf, which is composed of plates. These plates have at each end face or at each edge two miter surfaces, both of which are angled at 45 ° to the respective adjacent surface and are employed at 90 ° to each other. Two miter surfaces of two plates are connected to each other. For this purpose grooves are incorporated in the miter surfaces into which a molding strip engaging in both miter surfaces is simultaneously inserted.

The DE 20 2006 000 921 U1 shows a furniture system, in particular a shelving system, with a plurality of plate-shaped components. Each edge of the components is - comparable to the last-mentioned document - provided with two chamfers. In this slot-shaped pockets are provided, in each case in two pockets of adjacent components, an elbow is used. This should lock in the pockets.

In the miter joints of the latter two publications additional fasteners (moldings or elbows) are required to produce the miter joint. These fasteners can be lost in a repeated assembly and disassembly or during transport. If a cuboid or a shelf is constructed from the furniture panels according to the latter two documents, the respective second end faces of the two joined furniture panels and unneeded openings for fasteners (moldings or elbows) are clearly visible at its four edges.

In contrast, the invention is based on the object to provide a simple to produce and an easily detachable miter joint for furniture panels, in which no additional fasteners are needed, which - especially with repeated assembly and disassembly - could be lost.

This object is achieved by a miter joint for furniture panels with the features of claim 1 and by a furniture element with the features of claim 7, 8, 9 or 11.

The mitred joint according to the invention serves to connect two furniture panels, e.g. a shelf side part and a ragal floor. The miter connection has a first connecting element which is fastened in the region of a miter-cut end face of the first furniture panel, and a second connecting element which is fastened in the region of a miter-cut end face of the second furniture panel. Either the fasteners are attached directly to the respective end face, or they are attached adjacent to the respective end face on the edge of a surface of the respective furniture panel. The two connecting elements can be positively and frictionally connected with each other by a directed along the end faces movement in an insertion direction and be easily solved by a directed against the insertion direction movement again. Preferably, a plug connection between the furniture panels can be formed via the two connecting elements. In this case, the miter connection according to the invention requires no additional individual connecting elements, which - could be lost - especially in repeated assembly and disassembly.

The end faces of the two furniture panels each have exactly one miter surface, which is employed at 45 ° to an outer surface and 135 ° to an inner surface of the common furniture panel. The inner surface is smaller than the outer surface. If the fasteners cover the respective miter surface, are to see no mitred "open" faces of the furniture panels after they are assembled over their fasteners.

Each connecting element is preferably a metallic fitting element which can be easily produced by punching or laser cutting and by bending.

Further advantageous embodiments of the invention are described in the dependent claims.

Preferably, the two connecting elements in the insertion direction and transversely thereto and perpendicular to the end faces positively connected, while they are frictionally connected against the insertion direction.

In a preferred embodiment, the two connecting elements each have a main portion and a bent portion to 135 °. This results in a functional separation of the connection of the connecting element on the one hand via its main portion with the other connecting element and on the other hand via its angled portion with the associated furniture plate. The attachment of the angled portion can be done by screwing or gluing on the inner surface of the furniture panel. The two main sections are connectable to each other by movement in the insertion direction and are in a connected state substantially to each other.

Preferably, the first main portion has at least one recess and a holding portion adjacent thereto in the insertion direction. The holding section and the first main section are preferably flat. The holding portion may be approximately plane-parallel to the first main portion and spaced therefrom.

Preferably, the second main portion has at least one recess, from the edge of which a tab extends along the direction of insertion. The tab can be inserted between the first holding portion and the end face of the first furniture plate. The tab and the second main section are preferably flat. The tab may be approximately plane-parallel to the second main portion and spaced therefrom.

Preferably, a plurality of holding sections and correspondingly a plurality of tabs along the two main sections are distributed in the insertion direction and provided spaced from their respective end face, so that they can easily engage behind each other during the insertion movement. This results in the inserted or pushed together state a safe and tilt-free fit of the two connecting elements and thus the two furniture panels.

In a preferred development of the miter joint according to the invention, one of the two main sections has a fold into which an edge of the other main section can be inserted. Preferably, the fold and the edge extend along the direction of insertion. Thus, a stop of the two connecting elements are provided transversely to the insertion direction and a guide of the two connecting elements along the insertion direction. In the retracted or pushed together state, the one connecting element can be supported by its edge on the fold of the other connecting element with.

A variant of the invention according to the invention can take place in integral form. The above-described main sections are integrally formed on a respective metallic furniture panel. The two main sections are each angled at 135 ° to the furniture panel. The two main sections are connectable to each other by movement in the insertion direction and are in a connected state substantially to each other. Preferably, a plug connection between the furniture panels can be formed over the two main sections. A furniture panel with its two main sections serving for connection to the respective main section of the two adjacent furniture panels is therefore produced by stamping, cutting and bending from sheet metal. Thus, the manufacturing cost of the furniture panels with the two serving for releasable connection main sections is minimized.

Preferably, in the one-piece variant, the two main sections in the insertion direction and transversely thereto and perpendicular to the end faces positively connected, while they are frictionally connected against the insertion direction.

Preferably, also in the one-piece variant, the first main section has at least one recess and a retaining section adjacent thereto in the insertion direction. The holding section and the first main section are preferably flat. The holding portion may be approximately plane-parallel to the first main portion and spaced therefrom.

Preferably, the second main portion has at least one recess, from the edge of which a tab extends along the direction of insertion. The tab can be inserted behind the first holding section. The tab and the second main section are preferably flat. The tab may be approximately plane-parallel to the second main portion and spaced therefrom.

Preferably, a plurality of holding sections and correspondingly a plurality of tabs along the two main sections are distributed in the insertion direction and provided spaced from their respective end face, so that they can easily engage behind each other during the insertion movement. This results in the inserted or pushed together state a safe and tilt-free fit of the two main sections and thus the two metallic furniture panels.

In a preferred development of the one-piece variant, one of the two main sections has a fold into which an edge of the other main section can be inserted. Preferably, the fold and the edge extend along the direction of insertion. Thus, a stop of the two main sections are given transversely to the insertion direction and a guide of the two main sections along the insertion direction. In the retracted or pushed together state, the one main section can be supported by its edge on the fold of the other main section with.

An inventive cuboid furniture element has four furniture panels, wherein two furniture panels are releasably connected to each other via a prescribed miter connection. In this case, the furniture element according to the invention requires no additional fasteners that - could be lost - especially in repeated assembly and disassembly.

The insertion direction of the connecting elements can vary and is chosen so that the furniture element can be joined from four furniture panels. The insertion direction determines the design of the connecting elements, wherein the holding portion is always arranged on different sides of the same insertion direction.

In a further development of the furniture element according to the invention is on one of the two angled portions a hooking -. an eyelet - provided. In each case two hooking devices lying diagonally opposite to the furniture element, a traction means - e.g. a wire rope - hooked. Preferably, the traction means has a device for changing its length in order to increase and adjust the tension after hooking. Thus, the frictional resistance can be increased in each case two composite connecting elements and thus secure the assembled furniture element, e.g. if it is to stay for a long time.

In this case, it is preferred if the hooking device is an approximately triangular lug bent to an angled section, in particular by approximately 90 °, with a passage recess. If the connecting elements are metallic fitting elements, the hooking device is easy to produce by punching or laser cutting and bending.

In a further development of the furniture element according to the invention two furniture panels are releasably connected via a miter joint with two connecting elements, wherein the fold on one and the edge are provided on the other connecting element. In this case, the fold is visible on the respective edge of the furniture element. This is an optical feature and creates a recognizability of the furniture element. Depending on the thickness of the furniture panel, the fold and the edge can also project beyond the respective edge or outer surface of the furniture element.

From such furniture elements, an inventive shelving system can be assembled. Adjacent furniture panels of two mutually adjacent furniture elements may be spaced from each other by the protruding folds. The folds lie against each other.

In the following, various embodiments of the invention will be described in detail with reference to FIGS. Show it:

1 a first connecting element of a first embodiment of the miter joint according to the invention in an intermediate step of its production;

2 a second connecting element of the first embodiment of the miter joint according to the invention in an intermediate step of its production;

3 the first embodiment of the miter joint according to the invention according to 1 and 2 in a perspective view in a partially assembled state;

4 a section of a furniture element with the miter joint according to the preceding figures in a sectional view;

5 a shelving system of several furniture elements according to 4 in a frontal view; and

6 A second embodiment of the miter joint according to the invention in a sectional schematic representation.

1 shows a first connecting element 1 and 2 a second connecting element 2 the releasable mitred compound according to the invention. The two elements 1 . 2 are sheet metal parts, which were cut in a first manufacturing step along the solid lines with a laser. In a second manufacturing step, based on the in 1 and 2 Each state shown follows the elements 1 . 2 reshaped along the dashed lines. Then, the first connecting element on a first furniture plate 28 and the second connection element on a second furniture panel 30 (see. 4 ) attached. Finally, the second connecting element 2 along the in 1 shown insertion direction 9 moves, so that a positive or frictional plug connection of the two connecting elements 1 and thus the two furniture panel 28 . 30 (see. 4 ).

Each connecting element 1 . 2 has a main section 7 . 8th each having the shape of an elongated rectangle, and at the end portions thereof each have a through hole 5 . 6 is provided. Each connecting element 1 . 2 has an angled section 3 . 4 , which in each case on the in the 1 and 2 shown production step along a respective bending edge 10 . 12 around 135 ° with respect to the respective main section 7 . 8th bent and thus angled. The bending edges 10 . 12 thereby run along the insertion direction 9 ,

This in 1 shown first connecting element 1 has at its main section 7 at regular intervals approximately rectangular recesses 14 and in each case adjacent also approximately rectangular holding sections 16 , The holding sections 16 have at a respective one of the recess 14 facing away from an edge 18 , the main section 7 is disconnected. The holding sections 16 lie in the direction of insertion 9 behind the associated recess 14 and are each about two parallel bending edges on the main section 7 attached.

At one edge of the angled section 3 moving along the insertion direction 9 extends, a bending edge is provided, through which a fold 20 is generated, in an assembled state of the two connecting elements 1 . 2 a border 22 of the second connecting element 2 according to 2 receives. At one in the insertion direction 9 rear end portion of the angled portion 3 of the first connecting element 1 is a triangular hooking device 36 provided with respect to 4 is explained in more detail. Between the hooking device 36 and the angled section 3 is a bending edge 37 intended.

The second main section 8th of the second connecting element 2 has along the insertion direction 9 at regular intervals recesses 24 that is about twice as long as the recesses 14 of the first main section 7 (see. 1 ) are. In the insertion direction 9 extends in each recess 24 a rounded flap 26 at the edge of the recess 24 is attached via a respective bending edge and approximately over half the length of the recess 24 extends.

3 shows the first embodiment of the miter joint according to the invention according to the 1 and 2 consisting of the two connecting elements 1 . 2 , wherein the first connecting element 1 on a first furniture panel 28 has been fastened while the second connecting element 2 at one (in 3 not shown) second furniture panel 30 (see. 4 ) was attached. Deviating from the 1 and 2 are the two fasteners 1 . 2 mapped in their final bent state. This was the first angled section 3 bent by 45 ° relative to its initial position, so that he 135 ° to the first main section 7 is employed. In a similar way, the second angled section became 4 bent by 45 ° from its initial position, so that it is 135 ° to the second main section 8th is employed.

The two main sections 7 . 8th are in abutment with each other, so in a next step, the second connecting element 2 along the insertion direction 9 can be moved, creating a frictional and positive connection of the two main sections 7 . 8th will be produced. Here are the two angled sections 3 . 4 employed at 90 ° to each other. The two furniture panels 28 . 30 are each via two screws (not shown) on the associated angled portion 3 . 4 attached. This also results in an angle of 90 ° between the two furniture panels 28 . 30 ,

The tabs 26 of which in 3 only one tab 26 are shown opposite the second main section 8th lowered into the drawing plane. The holding sections 16 of which in 3 only one holding section 16 are shown are opposite the first main section 7 lifted out of the drawing plane. For this purpose, the compounds on the one hand the tabs 26 to the second main section 8th and on the other hand, the holding portions 16 to the first main section 7 Bends on. When assembling the miter joint according to the invention, the tabs 26 in respective recesses 14 of the first main section 7 lowered and then in the insertion direction 9 between the respective holding section 16 and a mitred front end 38 the first furniture panel 38 inserted. Each flap latches behind 26 the associated holding section 16 ,

In 3 is further to recognize that the hooking device 36 related to 4 is explained in more detail at 90 ° to the angled section 3 of the first connecting element 1 is bent.

4 shows a section of a furniture element with the miter connection 1 . 2 in particular according to 4 in a cut view. Only two of a total of four furniture panels and a miter joint of four miter joints are shown. 4 shows next to a complete engagement between the two main sections 7 . 8th in particular the hooking device 36 , which is provided in each corner of the furniture element and in each case in one piece on the angled section 3 of the first connecting element 1 (see. 3 ) is formed. Between the hooking device 36 and the section 3 runs the bending edge 37 at which the hooking device 36 90 ° opposite the section 3 is angled. In every hooking device 36 is a through-hole 40 provided, in each case a hook 42 is used. It has in 4 Furniture element shown two rods, of which in 4 only one pole 44 partially shown. At each end section of each pole 44 is integrally a hook 42 educated. About the two bars 44 whose length is variable, are each two diagonally opposite miter joints 1 . 2 braced against each other. This will cause an accidental loosening of the miter connection 1 . 2 by moving its two connecting elements 1 . 2 against the insertion direction 9 (see. 1 to 3 ) prevented.

Furthermore, on an outer surface 46 the first furniture panel 28 two cones 48 provided, of which in 4 only one pin 48 is shown. The cones 48 are used for positioning and connection with an arranged above another furniture item.

5 shows a shelving system consisting of several cuboid furniture elements according to 4 exists, in a frontal view. Here is a furniture element complete and three more partially shown. Each furniture element has next to the first furniture plate 28 and the second furniture board 30 two more furniture panels 50 , It can be seen that next to the pole 44 a transversely arranged further rod 52 is provided. Every bar 44 . 52 has a device 54 for changing the length of the respective bar 44 . 52 , The change in length takes place via rotation of a threaded part.

As in particular in 4 it can be seen, the two main sections are 7 . 8th every miter connection 1 . 2 over the respective outer surfaces 46 the connected furniture panels 28 . 30 out. This results in the shelf system according to 5 in each case a distance between two adjacent furniture panels or furniture elements in all directions. The two cones 48 serve on the one hand for positioning second furniture elements and on the other hand to support and to define the distance.

6 shows a second embodiment of a miter joint according to the invention in a sectional schematic representation. Here are the two connecting elements 101 . 102 shown only schematically. It can be seen that in the second embodiment, the furniture panels 128 . 130 compared to the first embodiment have a greater thickness, so that the fold 20 not over the edge of one with the furniture panels 128 . 130 protruding furniture element. The corresponding is an edge 156 the second furniture panel 130 cut in such a way that room for the fold 20 is created. For reasons of symmetry or for reasons of uniformity of the shape of the furniture panels 128 . 130 can also have a corresponding edge 158 at the first furniture panel 128 be formed (dashed line). Deviating, it is also possible that the basic shape of the miter of the first furniture plate 128 that of the first embodiment corresponds (solid line).

LIST OF REFERENCE NUMBERS

1; 101

 first connecting element

2; 102

 second connecting element

3

 first angled section

4

 second angled section

5, 6

 Through Hole

7

 first main section

8th

 second main section

9

 insertion direction

10, 12

 bending edge

14

 recess

16

 holding section

18

 edge

20

 Bending edge / fold

22

 edge

24

 recess

26

 flap

28; 128

 first furniture panel

30; 130

 second furniture panel

36

 hooking

37

 bending edge

38

 first end face

40

 through recess

42

 hook

44

 pole

46

 outer surface

48

 spigot

50

 another furniture board

52

 another pole

54

 contraption

55

 drilling

56

 shelf

156, 158

 edge

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 3117610 A1 [0003]
• DE 19827597 A1 [0005]
• DE 202006000921 U1 [0006]

Claims (13)

Miter joint for two furniture panels ( 28 . 30 ; 128 . 130 ) with a first connecting element ( 1 ; 101 ), which in the area of a miter-cut end face ( 38 ) of the first furniture panel ( 28 ; 128 ) is fastened, and with a second connecting element ( 2 ; 102 ), which in the region of a mitred cut end face of the second furniture plate ( 30 ; 130 ) is fastened, characterized in that the two connecting elements ( 1 . 2 ; 101 . 102 ) by a directed along the end faces movement in a direction of insertion ( 9 ) are positively connected to each other and / or frictionally connected. Miter joint according to claim 1, wherein the two connecting elements ( 1 . 2 ; 101 . 102 ) in the insertion direction ( 9 ) and transversely thereto and perpendicular to the end faces ( 38 ) are positively connected, and wherein the two connecting elements ( 1 . 2 ; 101 . 102 ) are frictionally connected against the insertion direction. Miter joint according to claim 1 or 2, wherein the two connecting elements ( 1 . 2 ; 101 . 102 ) each have a main section ( 7 . 8th ) and an angled section ( 3 . 4 ) over which the respective connecting element ( 1 . 2 ; 101 . 102 ) on the respective furniture panel ( 28 . 30 ; 128 . 130 ) and the two main sections ( 7 . 8th ) by movement in the insertion direction ( 9 ) are connectable to each other. Miter joint according to claim 3, wherein the first main section ( 7 ) at least one recess ( 14 ) and one in the insertion direction ( 9 ) adjacent holding section ( 16 ) Has. Miter joint according to claim 4, wherein the second main section ( 8th ) at least one recess ( 24 ) has, from the edge of a tab ( 26 ) along the direction of insertion ( 9 ) and wherein the tab ( 26 ) between the holding section ( 16 ) and the front side ( 38 ) of the first furniture panel ( 28 ; 128 ) can be inserted. Miter joint according to one of claims 3 to 5, wherein one of the main sections ( 7 ) a fold ( 20 ) into which one edge ( 22 ) of the other main section ( 8th ), and wherein the fold ( 20 ) and the edge ( 22 ) along the direction of insertion ( 9 ). Rectangular furniture element with four furniture panels, each furniture panel at two opposite end faces in each case one integrally formed with the furniture panel main section, characterized in that the main sections are angled approximately 135 ° to the respective furniture panel, wherein the two main sections of two adjacent furniture panels by a along the end faces directed movement in an insertion direction with each other form-fitting and / or frictionally connected. Cuboid furniture element with four furniture panels ( 28 . 30 . 50 ), whereby two furniture panels ( 28 . 30 ) are releasably connected via a miter connection according to one of claims 1 to 6. Cuboid furniture element with four furniture panels ( 28 . 30 . 50 ), whereby two furniture panels ( 28 . 30 ) are releasably connected via a miter joint according to claim 3, and wherein at one of the two angled portions ( 3 ) a hooking device ( 36 ) is provided, and wherein in each case two diagonally opposite Einhakvorrichtungen ( 36 ) a traction means ( 44 . 52 ) is hooked. Furniture element according to claim 9, wherein the hooking device ( 36 ) an angled to the angled portion approximately triangular tab with a through-hole ( 40 ). Cuboid furniture element with four furniture panels ( 28 . 30 . 50 ), whereby two furniture panels ( 28 . 30 ) are releasably connected via a miter joint according to claim 6, and wherein the fold ( 20 ) protrudes beyond a respective edge of the furniture element. Shelving system with a plurality of furniture elements according to one of claims 7 to 11. Shelving system according to claim 11, wherein mutually adjacent furniture panels ( 28 . 50 ) are spaced from each other by two adjacent furniture elements.

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