DE102018124918B4 - Furniture system that can be assembled without screws and method for assembling a furniture system - Google Patents

Abstract

Furniture system (1) with at least four side panels (2a, 2b, 2c, 2d), which are connected to each other at one edge with the interposition of a connection system (3a, 3b, 3c, 3d) and each have a groove (4a, 4b, 4c, 4d) and the grooves (4a, 4b, 4c, 4d) are aligned with one another, and with a bottom plate (5) which fits into each of the four grooves (4a, 4b, 4c, 4d) of the four side plates (2a, 2b, 2c , 2d) engages, a first groove depth (33) of one of the four grooves (4b) being at least twice as great as a second groove depth (34) of at least one of the remaining three grooves (4a, 4c, 4d).

Description

The present disclosure relates to a furniture system, such as a cupboard, a shelf, a stool or a table, with at least four side panels, each of which is connected to one another at one edge with the interposition of a connection system and each has a groove and the grooves are aligned with one another, and with a base plate (which can also serve as a rear wall or the like), which engages in each of the four grooves of the four side plates and thus causes a lock.

The present disclosure also relates to a method for assembling a furniture system, such as a furniture system according to the invention.

In the prior art, there are various efforts to connect components, such as furniture systems, without screws. One possibility is the Lamello connection, which is well known in carpentry, but which, due to its gluing, requires additional assembly steps and is unsolvable.

In addition, other screwless connection systems are also known.

The utility model is particularly noteworthy from the further state of the art DE 200 18 869 U1 . This discloses a connector system for furniture. A hole is made in each of the two components to be connected. A barbed pin is then inserted into the first hole, which can be inserted into a dowel located in the second hole in such a way that the dowel spreads and thus connects the two components to one another.

Although this prior art creates a screwless connection of two components in an assembly process, the complex geometry of the pin is initially disadvantageous. Furthermore, due to the small hook depth of the barbs, the plug-in connection is suitable for aligning two components with one another, but it is not able to absorb high forces and thus connect the components in a robust manner.

More conventional screwless connection systems for connecting two pieces of furniture, in particular two furniture panels are from DE10 2018 112 950 A1 , DE 24 26 722 A1 and the DE 74 34 694 U known.

Against this background, the present invention is based on the object of eliminating or at least alleviating the disadvantages of the prior art and, in particular, of disclosing a furniture system and a connection system which connect at least two (sections) of panels with one another without play and robustly.

In addition, the invention aims to disclose a manufacturing and an assembly method that make it possible to set up and possibly also dismantle a furniture system within a very short time and without tools.

Furthermore, the invention is based on the object of disclosing furniture systems that can be broken down into their individual parts and operated efficiently and in a space-saving manner in the logistics of large quantities.

Another object of the invention is to disclose a furniture system that is fixed in all three spatial directions and is consequently assembled in a robust manner without requiring an additional tool for assembly.

According to the invention, these objects are achieved by devices and methods according to the features of the independent claims. Advantageous embodiments are the subject matter of the dependent claims.

According to the invention, a first groove depth of one of the four grooves is at least twice as large/deep as a second groove depth of at least one of the remaining three grooves. In the installed state, this allows the base plate to be pushed back and forth along an effective direction in order to release or block a relative movement of side walls in order to enable tool-free installation.

In other words, a furniture system is disclosed which, in a first, incompletely assembled state, has at least three side panels which define an open side, in the place of which the fourth side panel is arranged in the fully assembled state. A base plate can then be inserted from the open side in a plane which is transverse, preferably perpendicular, to each of the planes of the three side plates. That insertion occurs along grooves located in each of the side panels. In order to prevent the base plate from protruding beyond an inner edge of the first and third side plate (such a protrusion would block the fourth side plate from shearing into the open side), the groove depth of the second side plate is deepened, namely at least twice as deep / large. Consequently, the floor panel is to be temporarily inserted completely into the deepened groove. Once the fourth side panel is inserted into the open side via a sort of shearing motion, the bottom panel becomes moved out of the depressed groove to engage the groove of the fourth side plate. The side panels are now locked in place along their longitudinal direction by the base panel without the use of tools.

Advantageous embodiments of the furniture system are the subject matter of the dependent claims and are explained in more detail below.

The first groove depth is preferably constant over the entire width/length of the side plate (essentially, i.e. manufacturing tolerances disregarded) and the second groove depth of the remaining three grooves is (essentially) also constant over the entire width/length of the side plates and to one another are the same. Thus, the side plates or their grooves can be manufactured cost-effectively and in large numbers. Furthermore, this enables the floor panel to be moved smoothly and precisely in the grooves.

In a further embodiment, the connection system is formed from a dumbbell-shaped connection part (i.e. a connection part with at least one thickening at one end, as is also described in the further course of this disclosure) and a separately designed holding element, which fits into corresponding recesses in the side plates , preferably form-fitting, engage. This ensures that not only the locking effect of the base plate is created without tools, but also the respective connection of the individual side plates. If the side plates are positively connected to each other, this also has an advantageous effect on repeated (dis)assembly, since a material-friendly mechanism is used for assembly and disassembly.

In particular, when at least one, preferably two, locking pin(s) is (are) arranged in the base plate in order to prevent the base plate from being displaced in the grooves, the stability of the piece of furniture is increased.

Advantageously, the side plates each have a bevel at their edge, preferably of (approximately) 45°, and the respective connection system is arranged in this bevel, so that the side plates are connected by means of a miter. On the one hand, this saves space and, on the other hand, it is optically advantageous, since no connection points are visible from the outside.

It is also advantageous for the stability of the piece of furniture if the base plate is designed to be rigid and in one piece. Thus, on the one hand, the base plate guarantees that the side plates are locked in place, and on the other hand, due to its rigidity, it keeps the position of the side plates in a constant position even under load.

• - Bereitstellen einer ersten Seitenplatte, in die eine senkrecht zur ersten Seitenplatte offene, erste Nut eingebracht ist;
• - Verbinden der ersten Seitenplatte mit einer zweiten Seitenplatte mittels eines ersten Verbindungssystems, derart, dass eine zweite Nut der zweiten Seitenplatte mit der ersten Nut fluchtet;
• - Verbinden der zweiten Seitenplatte mit einer dritten Seitenplatte mittels eines zweiten Verbindungssystems derart, dass eine dritte Nut der dritten Seitenplatte mit der zweiten Nut fluchtet, sodass die erste Seitenplatte, die zweite Seitenplatte und die dritte Seitenplatte eine in eine erste Einschieberichtung offene Grundform, etwa eine U-Form (gewiss nur in einer Draufsicht), ausbilden;
• - Einschieben einer Bodenplatte in die Nuten entlang einer zweiten Einschieberichtung, die der ersten Einschieberichtung entgegengesetzt ist, derart, dass die Bodenplatte einen Nutgrund der zweiten Nut kontaktiert, um eine Relativbewegung einer vierten Seitenplatte zu der ersten Seitenplatte quer zu der ersten Nut zu ermöglichen;
• - Verbinden der ersten Seitenplatte und der dritten Seitenplatte mit der vierten Seitenplatte mittels eines dritten und vierten Verbindungssystems, derart, dass eine vierte Nut der vierten Seitenplatte mit der ersten und der dritten Nut fluchtet;
• - arretierendes Verschieben der Bodenplatte entlang der ersten Richtung, sodass die Bodenplatte einen Nutgrund der vierten Nut kontaktiert, um die Relativbewegung der vierten Seitenplatte zu der ersten Seitenplatte quer zu der ersten Nut zu verhindern.

Furthermore, the present disclosure relates to a method for assembling a furniture system, preferably the furniture system disclosed above. This procedure has the following steps:

• - Providing a first side plate, in which a perpendicular to the first side plate open, first groove is introduced;
• - connecting the first side panel to a second side panel by means of a first connection system such that a second groove of the second side panel is aligned with the first groove;
• - Connecting the second side plate to a third side plate by means of a second connection system in such a way that a third groove of the third side plate is aligned with the second groove, so that the first side plate, the second side plate and the third side plate have a basic shape that is open in a first direction of insertion, for example a Form a U-shape (certainly only in a plan view);
• - inserting a bottom plate into the grooves along a second insertion direction, which is opposite to the first insertion direction, such that the bottom plate contacts a groove base of the second groove to allow relative movement of a fourth side plate to the first side plate transversely to the first groove;
• - connecting the first side panel and the third side panel to the fourth side panel by means of a third and fourth connection system, such that a fourth groove of the fourth side panel is aligned with the first and the third groove;
• - lockingly sliding the bottom plate along the first direction so that the bottom plate contacts a groove bottom of the fourth groove to prevent relative movement of the fourth side plate to the first side plate across the first groove.

As a result, a robust piece of furniture is assembled exclusively by relative displacement/insertion of the individual side panels and the base panel: The locking along the transverse direction of the side panels and along the depth direction of the side panels is produced by the respective connection systems. The locking along the longitudinal direction of the side plates is established by the form fit between the base plate and the grooves. The furniture system is thus locked / blocked in all three spatial directions.

Advantageous embodiments of the method for assembling a furniture system are the subject matter of the dependent claims and are explained in more detail below.

Thus, in this method of assembly, the base plate is preferably displaced along the first insertion direction by the amount of a groove depth of the fourth groove. This ensures full engagement of the bottom panel in the fourth groove and consequently saves space and increases stability by preventing the bottom panel from slipping around.

In this context, at least one locking pin can preferably be arranged in the base plate in order to prevent the base plate from being displaced in the first direction of insertion. This further increases the stability of the assembled piece of furniture and can be efficiently integrated into the assembly process.

In an advantageous embodiment, the respective side plates are connected to one another via a movement along a shearing direction of the respective side plates to one another. A connection system of the present disclosure is particularly suitable for this purpose.

In other words, the assembly process can be described as follows: First, three side plates / side parts / uprights are put together (e.g. using the connection system described below). Then the bottom/rear panel (which is effectively the locking element) is slid into the groove of the three assembled parts, with the groove milling depth in one of the parts being at least twice as deep as in the other parts. As a result, the base plate/rear wall is pushed in all the way beyond the actual end position. Then the last side panel is inserted into the "three-piece structure" and thus the four sides are completed. Then the base plate/rear wall is pushed back from the double-deep groove into the groove of the last side plate in order to achieve the permanent, final locking/locking of the 4 side walls assembled in the sliding connection.

A further, optionally independently claimable, screwless assembly furniture system and an optionally independently claimable screwless connection system as well as an optionally independently claimable method for the manufacture and assembly thereof are disclosed below.

In this connection it should be mentioned that the terms side plate and plate section are used as synonyms.

In a possibly independently claimable aspect, the present disclosure relates to a further furniture system with a first flat panel section in which a first indentation is made and with a second flat panel section running perpendicular to the first panel section in which a second indentation is made. The furniture system also includes a connecting part connecting the two panel sections, the first end section of which engages in the first recess and thus the first panel section, and the second end section of which engages in the second recess and thus in the second panel section.

A connection system for connecting two panel sections of a furniture system, as is known, for example, from this disclosure, is also the subject matter of the disclosure. Such a connection system has a substantially dumbbell or bone-shaped connection part, which has a first end section, a second end section and a middle section lying in between. The connector is adapted to engage the first panel portion of the furniture system with the first end portion and the second panel portion of the furniture system with the second end portion to connect the panel portions together.

In a particular embodiment, the connecting part has the dumbbell or bone-shaped bulge only on one side, while on the other side it is cylindrical (e.g. to be glued).

Furthermore, the present disclosure relates to a method for producing individual parts of a furniture system, as is known, for example, from this disclosure. In this manufacturing method, a first panel section and a second panel section are provided before a first indentation (in the first panel section) and a second indentation (in the second panel section) are milled into these panel sections. Finally, a two-part connection system is provided which is adapted to connect the first and second panel sections.

A method for assembling a furniture system, as is known for example from this disclosure, is also the subject of the present disclosure. In this assembly method, a first plate section with a first indentation, a second plate section with a second indentation and a two-part connection system are used.

Generic furniture systems, connection systems and manufacturing and assembly methods are aimed at connecting two components, such as wood, without screws.

Thus, in a furniture system according to one aspect of this disclosure, a separately designed holding element is arranged in the first depression next to the first end section of the connecting part, which holding element holds the connecting part in its position in a form-fitting manner. The retaining element is, so to speak, inserted into the first depression (also called milling pocket) next to the connecting part and thus limits its freedom of movement within the first depression, as a result of which the connecting part is locked. In other words, the holding element (also called "holder") serves to fix the connecting part (also called "bone") in its (end) position and to increase the possible tensile load.

In a preferred embodiment, the first end portion of the connecting part and the second end portion of the connecting part each protrude radially, preferably by the same amount, so that the connecting part assumes a dumbbell shape. This undercut-free, rotationally symmetrical geometry of the connecting part allows it to be manufactured economically. Furthermore, due to the dumbbell shape, the radial projections represent a suitable effective surface for the form fit of the connecting part.

More preferably, the first depression defines an undercut, preferably in the form of a (partial) T-groove, which surrounds the first end section of the connecting part in order to positively lock the connecting part along its longitudinal direction.

In a further development of the furniture system, the second recess has a T-shape in the plan view of the second panel section, which runs complementary to the second end section of the connecting part, so that the second panel section is locked in place along the longitudinal direction of the connecting part. Thus, at the edge of the second panel section is the foot of the T-shape and the crossbar of the T-shape is located in the central portion of the panel section. The crossbar of the T-shape also creates an undercut along the longitudinal direction of the inserted connecting part, which in turn ensures a robust fit of the connecting system (connecting part plus retaining element).

The base area of the first depression is preferably completely filled by the base area of the connecting part and/plus the base area of the holding element, with the exception of two dead spaces caused by rotational symmetry. The dead spaces caused by rotational symmetry result from the circular (section) shape of the two parts of the connection system (similar to an 8, which forms two dead spaces caused by rotational symmetry on the side). Those dead spaces caused by the rotational symmetry are minimal/negligible compared to the total base area of the first depression, which is why a great hold is guaranteed by the connection system.

The (possibly independently claimable) connection system according to the invention is characterized in that, in addition to the connection part (also called “bone”), it consists of a separately designed holding element (also called “holder”) (i.e. it is in two parts overall), which holding element is adapted to it to lock the connector in position in the first panel section. The connection part and the retaining element are matched to one another in terms of their geometry and, in the assembled state, have surface contact surfaces (cylinder section) with one another.

The retaining element of the connection system preferably has a cylindrical basic shape, in which a small-diameter recess and along the longitudinal direction of the retaining element offset to the small-diameter recess a large-diameter recess is introduced, wherein the small-diameter recess runs complementary to a section of the middle section of the connecting part and the large-diameter recess is complementary to a portion of one of the end portions of the connector. In this way, the two individual parts of the connection system work together to ensure that the connection system is locked in place without play. In its longitudinal direction, the holding element preferably extends approximately over half the longitudinal direction of the connecting part.

• - Einfahren des Fräskopfes entlang seiner Längsrichtung, die orthogonal zur Ebene des ersten Plattenabschnitts steht, in den ersten Plattenabschnitt,
• - Verfahren des Fräskopfes innerhalb des ersten Plattenabschnitts in Querrichtung, um einen Hinterschnitt im ersten Plattenabschnitt auszuformen,
• - Herausfahren des Fräskopfes aus dem ersten Plattenabschnitt nach demselben Profil, als sozusagen „rückwärts“, um die von der ersten Vertiefung gebildete erste Frästasche in ihrer durch Längs- und Querverfahrung gebildeten Geometrie beim Herausfahren nicht zu verändern.

In the manufacturing method (according to one aspect of the present disclosure) of individual parts of a piece of furniture, the first indentation is introduced by means of a milling head, preferably a T-slot milling head, as is well known from the prior art, as follows:

• - retraction of the milling head along its longitudinal direction, which is orthogonal to the plane of the first plate section, into the first plate section,
• - Moving the milling head within the first plate section in the transverse direction in order to form an undercut in the first plate section,
• - Retraction of the milling head from the first plate section according to the same profile, as it were "backward" to that of the first Deepening formed first milled pocket not to change in their geometry formed by longitudinal and Querverfahrung when driving out.

The manufacturing method (according to one aspect of the present disclosure) of individual parts of a furniture system using a commercially available milling head and a (preferably die-cast) connection system enables the tool-free connection of two panel sections within a very short time.

In the production method, a type of impression is preferably made in the second panel section with the same, i.e. identical, milling head, namely along the transverse direction of the milling head, which is orthogonal to the plane of the second panel section.

• - Einsetzen eines ersten Endabschnitts eines hantelförmigen (knochenförmigen) Verbindungsteils des zweiteiligen Verbindungssystems in die erste Vertiefung, sodass ein zweiter Endabschnitt des Verbindungsteils aus der ersten Vertiefung herausragt,
• - Einsetzen eines Halteelements des zweiteiligen Verbindungssystems in die erste Vertiefung, um das Verbindungsteil zu arretieren,
• - Aufsetzen des zweiten Plattenabschnitts auf den zweiten Endabschnitt des Verbindungsteils, sodass der erste Plattenabschnitt und der zweite Plattenabschnitt formschlüssig und spielfrei miteinander verbunden sind.

The following steps are carried out in the assembly method according to the invention:

• - inserting a first end portion of a dumbbell-shaped (bone-shaped) connecting part of the two-part connecting system into the first recess, so that a second end portion of the connecting part protrudes from the first recess,
• - inserting a retaining element of the two-part connection system into the first recess in order to lock the connection part,
• - Placing the second plate section on the second end section of the connecting part, so that the first plate section and the second plate section are connected to one another in a form-fitting manner and without play.

It is obvious to a person skilled in the art that this assembly method brings about considerable added value compared to the prior art in terms of assembly time, complexity, post-processing and the tools required.

In other words, both the furniture and the connection system, as well as the manufacturing and the assembly method (according to an aspect of the present disclosure), can be described as follows. The connection system consists of only two components (connecting part and holding element) and enables boards (mainly wood/furniture parts, but in principle also all other components such as plastics and much more) to be assembled without screws in the shortest possible assembly time, permanently stable and dismantled.

Using a milling head, the required installation spaces for the connection system are machined into the respective panel section (particularly suitable for series production of large quantities, also for craftsmen, mainly carpenters/carpenters, for individual furniture construction). Then the connecting part, which looks like a dumbbell or bone in the silhouette view, is inserted into the precisely fitting milled cutout / first recess / first milled pocket in the first plate section and pushed sideways into the final position. In order to permanently fix the connecting part in this end position, the precisely manufactured retaining element of the connecting system is pressed into the free space of the first milled pocket that remains next to the connecting part, laterally from/towards the connecting part.

As a result, the holding element is automatically locked/stiffened in its position by the second plate section (i.e. the component to be connected) due to the system and reliably secures the connecting part (with high system rigidity or connection rigidity) in its end position.

In the second panel section, e.g. cross bottoms of pieces of furniture / shelf inserts of cupboards, using the same milling head that also milled the first milled pocket, a further precisely fitting milling / second indentation / second milled pocket is made from the side. In this case, the milling head has the dimension and dimensions of the connecting part. In this way, the second panel section with the corresponding dimension between the connecting part and milling head and milling pocket can be placed on the input part previously positioned/attached in the first panel section, which ultimately results in the permanently stable, constructively stiffening, screwless system connection.

The furniture system is designed in such a way that the holding element is completely covered by the connected end face of the second panel section in the assembled state. The second milled pocket in the second plate section can only be seen as a recess when viewed from below. Advantageously, this recess can be closed by means of a blind plug or locked in place by means of a closing plug.

The connection system is basically made of different materials, such as steel, aluminum or plastic. Due to the simple shape of the two components of the connection system (no undercut angles), they are particularly preferably cast (e.g. die-cast), which reduces the manufacturing complexity of the connection system.

• 1 eine schematische Ansicht eines Möbelsystems gemäß einem ersten Aspekt der Offenbarung;
• 2 das Möbelsystem gemäß dem ersten Aspekt in einer perspektivischen Ansicht;
• 3 das Möbelsystem gemäß dem ersten Aspekt in einer weiteren Ausführungsform;
• 4 das Möbelsystem gemäß dem ersten Aspekt in einer weiteren Ausführungsform;
• 5 eine schematische Ansicht der Einzelteile eines Möbelsystems gemäß einem weiteren Aspekt der Erfindung mit einem Verbindungssystem;
• 6 eine Draufsicht auf einen ersten Plattenabschnitt mit eingesetztem Verbindungssystem;
• 7 eine perspektivische Ansicht auf den ersten Plattenabschnitt mit eingesetztem Verbindungssystem;
• 8 eine Schnittansicht durch das Möbelsystem;
• 9 eine Draufsicht auf das Verbindungssystem;
• 10 eine Drauf- und eine Seitenansicht auf ein Halteelement des Verbindungssystems;
• 11 eine Seitenansicht auf das Verbindungssystem; und
• 12 eine perspektivische Teilansicht einer ersten Vertiefung.

The invention is explained in more detail below with reference to the accompanying drawings. These show:

• 1 a schematic view of a furniture system according to a first aspect of the disclosure;
• 2 the furniture system according to the first aspect in a perspective view;
• 3 the furniture system according to the first aspect in a further embodiment;
• 4 the furniture system according to the first aspect in a further embodiment;
• 5 a schematic view of the individual parts of a furniture system according to a further aspect of the invention with a connection system;
• 6 a top view of a first plate section with the connection system used;
• 7 a perspective view of the first plate section with the connection system used;
• 8th a sectional view through the furniture system;
• 9 a plan view of the connection system;
• 10 a top view and a side view of a holding element of the connection system;
• 11 a side view of the connection system; and
• 12 a partial perspective view of a first depression.

The figures are only of a schematic nature and serve exclusively for understanding the invention. The same elements are provided with the same reference numbers.

1 shows a furniture system 1 with four side panels 2a, 2b, 2c, 2d, which are connected to each other at one edge with the interposition of a connection system 3a, 3b, 3c, 3d and each have a groove 4a, 4b, 4c, 4d and the grooves 4a , 4b, 4c, 4d are aligned with one another, and with a bottom plate 5 which engages in each of the four grooves 4a, 4b, 4c, 4d of the four side plates 2a, 2b, 2c, 2d, with a first groove depth 33 of one of the four grooves 4b is at least twice as large as a second groove depth 34 of at least one of the remaining three grooves 4a, 4c, 4d. This enables tool-free assembly according to this invention.

The respective connection system 3a, 3b, 3c, 3d is preferably according to the connection system 14, as in the 5 until 12 is described, designed. This connection system is also known as the "bone system".

In the present case, the respective connection systems 3a, 3b, 3c, 3d are arranged in a slope 30, so that the furniture system 1 1 connected by a miter.

The base plate 5 is pushed along the second insertion direction 32 into the component which is defined by the three side plates 2a, 2b and 2c. In order to prevent the bottom plate 5 from protruding, the first groove depth 33 of the second groove 4b is twice as deep as the second groove depth 34 of the remaining grooves 4a, 4c, 4d. As soon as the fourth side plate 2d is then inserted along a longitudinal direction of the side plates, the bottom plate 5 is pushed back along the first direction 31 in order to contact a groove bottom of the fourth groove 4d.

In the next step, it is possible to arrange locking pins 29 in the base plate 5 in order to prevent the base plate 5 from slipping.

2 12 shows a stool which is an embodiment of the furniture system 1 according to the invention. In addition to the four side walls 2a to 2d and the base plate 5, this has a closure cover 41. The stool according to 2 does not have any connecting parts visible from the outside and is nevertheless firmly fixed in all spatial directions. This simplifies assembly and also meets aesthetic requirements.

In 3 a furniture system is not connected by a miter. With regard to the functioning of the connection system 3a to 3d is on the 5 until 12 and connection system 14 disclosed therein. It is of central importance that the first groove depth 33 is twice as deep as the second groove depth 34 in order to prevent the base plate 5 from protruding temporarily.

In 4 another embodiment is disclosed. The piece of furniture 1 is a closet here. The functioning of the assembly remains unaffected by this, which is why reference is made to the above. In this case, a center shelf 36 and a skirting board 37 are first pushed into a cabinet side wall 35 . These are connected to each other via a connection system as shown in the 5 until 12 is described, connected. A cross base 38 and a cover plate 39 are then inserted. In order to lock the cabinet in its entirety, a rear wall 40, which is equivalent to the previously described base plate 5 in terms of its function, is finally used. This first engages in a groove that is twice as deep, only to then be locked in place in the opposite direction.

5 shows a furniture system 1 according to a further aspect of this disclosure with a first panel section 6 in which a first depression 7 is introduced and with a second panel section 8 running perpendicularly to the first panel section 6 and in which a second depression 9 is introduced. A substantially dumbbell-shaped connecting part 10 for connecting the two plate sections 6, 8 has a first end section 11 and a second end section 12. Together with a retaining element 13 that positively locks the connecting part 10 in its position, the connecting part 10 forms a connecting system 14.

The furniture system 1 can be assembled as follows: First, the first end section 11 of the connecting part 10 is inserted into a plate section 15 of the first recess 7 . The connecting part 10 is then inserted along the transverse direction 16 within a T-groove formed by the first depression 7 (cf. 12 ) until the connecting part 10 is located at the opposite end of the first recess 7 from the plate section 15 .

In this first state, the connecting part 10 is positively fixed along the longitudinal direction 17 by an undercut of the first depression 7 , but the connecting part 10 can still be moved along the transverse direction 16 .

In order to prevent this degree of freedom and to lock the connecting part 10 completely, the holding element 13 is inserted into the plate section 15 of the first recess 7 . The holding element 13 has a rotationally symmetrical basic shape in which such recesses (cf. 10 ) are introduced such that the holding element 13 nestles in the first depression 7 in a complementary manner to the connecting part 10 . The diameter of the rotationally symmetrical basic shape of the connecting part 10 corresponds to that of the plate section 15 and that of the first end section 11. This enables the connecting system 14 to be inserted with a precise fit.

In this second state, the connecting part protrudes partially, namely with the second end section 12, out of the first plate section 6 (cf. 7 ) and is rigidly fixed.

Next, the second plate section 8 can be placed on the protruding part of the connecting part 10 . For this purpose, the second recess 9 has a T-shape in the top view of the second plate section 8, as shown in 5 is evident. The T-shape in the second plate section 8 is the negative of the T-shape of the part of the connecting part 10 protruding from the first plate section 6 (cf. 11 )

In this third state, the two plate sections 6, 8 are fixed without play and robustly along a first loading direction 18 and a second loading direction 19. The connection of the two plate sections 6, 8 caused by the connection system 14 can be reversibly released by means of a force opposing the first loading direction 18.

It should be particularly emphasized that the first indentation 3 is milled with the same milling head as the second indentation 5: For the first indentation 3, the milling head is first moved into the first plate section 6 along the longitudinal direction 13 (which is also the longitudinal direction of the milling head). (to mill the plate section 11) before it is moved along the transverse direction 12 to form a T-slot (cf. 12 ) to train. The milling head is then moved out in reverse order (first along the transverse direction 12, then along the longitudinal direction 13). This method of drilling T-slots is known from the prior art.

For the second depression 9 , the milling head is immersed into the second plate section 8 along its transverse direction, which runs in the opposite direction to arrow 18 . In this way, a negative impression of the shape of the milling head is created, which results in the second depression 7 being T-shaped when viewed from above. The maximum diameter of the milling head consequently essentially has the dimension of the first and second end sections 11, 12 of the connecting part 10.

In 6 1 is a plan view of the second panel section 6 into which the connection system 14 is inserted. The retaining element 13 is shaped in a complementary manner to the connecting part 10 so that the connecting system 14 fills the entire base area of the first recess 7 with the exception of two negligible dead spaces 20 . a (in 8th also recognizable) lower edge 28 indicates the lower edge of the second plate section 8 . The connection system 14 is therefore completely covered by the end face of the second panel section 8 .

In practice, the connection system 14 is to be arranged at two lateral ends of a panel in order to guarantee a stable connection of the piece of furniture 1. 7 FIG. 12 shows a perspective view of the state of FIG 6 with two inserted connection systems 14. The holding element 13 fills in the top view of the connection part 10 after its lateral displacement (see arrow 16 5 ) Shared plate portion 15 of the first recess 7 completely.

In 8th a sectional view of the connected piece of furniture 1 can be seen. The second plate Section 8 was placed on the connecting part 10 along the first loading direction 18 . The hatchings 21 and 22 represent the respective milling volumes in the plate sections 6, 8, which remain free (at least partially) even when the connection system 14 is used. The lower edge 28 runs below the first milling volume 21.

9 shows the connection system 14 in a plan view. The related to 6 Already indicated dead spaces 20 are the first depression 7 are indicated by dashed lines. The complementary interplay of the rotationally symmetrical connecting part 10 and the partially rotationally symmetrical holding element 13 is precisely matched to one another.

In 10 the holding element 13 is shown in a plan view (left) and a side view (right). A large-diameter recess 23 and a small-diameter recess 24 are provided so that the holding element 13 can nestle against the connecting part 10 . The large-diameter recess 23 is on a groove bottom 25 side opposite to a groove opening 26 side.

The dimension of the large-diameter recess diameter depends on the dimension of the first end section 11 of the dumbbell-shaped connecting part 10 or is measured on this. Likewise, the dimension of the small-diameter recess diameter depends on the dimension of a middle section, which is arranged between the two end sections 11, 12, or is measured on this.

11 shows a side view of the connection system 14. The two components, the holding element 13 and the connection part, run complementarily to one another without a gap. The height of the holding element 13 corresponds to a groove depth 27 of the first recess 7.

The groove depth is 27 in 12 shown in perspective. Furthermore, the undercut formed by the first depression 7 can be seen therein, which fixes the connecting part 10 along the longitudinal direction 17 of the connecting part 10 . Consequently, the first depression 7 represents a T-groove.

Reference List

1

furniture system

2a

First side plate

2 B

Second Side Plate

2c

Third Side Plate

2d

Fourth Side Plate

3a

First connection system

3b

Second connection system

3c

Third connection system

3d

Fourth connection system

4a

First groove

4b

Second groove

4c

Third groove

4d

Fourth groove

5

bottom plate

6

First panel section

7

First deepening

8th

Second plate section

9

Second deepening

10

connection part

11

First end section

12

Second end section

13

holding element

14

connection system

15

plate section

16

transverse direction

17

longitudinal direction

18

First load direction

19

Second load direction

20

dead space

21

First milling volume

22

Second milling volume

23

Large diameter recess

24

Small diameter recess

25

groove bottom side

26

groove opening side

27

groove depth

28

bottom edge

29

locking pin

30

oblique

31

First insertion direction

32

Second insertion direction

33

First groove depth

34

Second groove depth

35

cabinet side panel

36

center shelf

37

skirting board

38

cross bottom

39

cover plate

40

back panel

41

cap

Claims (10)

Furniture system (1) with at least four side panels (2a, 2b, 2c, 2d), which are connected to each other at one edge with the interposition of a connection system (3a, 3b, 3c, 3d) and each have a groove (4a, 4b, 4c, 4d) and the grooves (4a, 4b, 4c, 4d) are aligned with one another, and with a bottom plate (5) which fits into each of the four grooves (4a, 4b, 4c, 4d) of the four side plates (2a, 2b, 2c , 2d) engages, a first groove depth (33) of one of the four grooves (4b) being at least twice as large as a second groove depth (34) of at least one of the remaining three grooves (4a, 4c, 4d). Furniture system (1) according to claim 1 , characterized in that the first groove depth is constant over the entire width of the side plate (2b) and the second groove depth of the remaining three grooves (4a, 4c, 4d) over the entire width of the side plates (2a, 2c, 2d) is also constant and are equal to each other. Furniture system (1) according to one of the preceding claims, characterized in that the connection system (3a, 3b, 3c, 3d) is formed in each case from a dumbbell-shaped connection part (10) and a separately designed holding element (13) which fits into corresponding depressions in the side plates (2a, 2b, 2c, 2d), preferably in a form-fitting manner. Furniture system (1) according to one of the preceding claims, characterized in that at least one locking pin (29) is arranged in the base plate (5) in order to prevent the base plate (5) from being displaced in the grooves (4a, 4b, 4c, 4d). stop. Furniture system (1) according to one of the preceding claims, characterized in that the side panels (2a, 2b, 2c, 2d) each have a bevel (30), preferably of 45°, at their edge, and the respective connection system (3a, 3b , 3c, 3d) is arranged in this slope (30), so that the side plates (2a, 2b, 2c, 2d) are connected by means of a miter. Furniture system (1) according to one of the preceding claims, characterized in that the base plate (5) is rigid and designed in one piece. Method of assembling a furniture system (1), comprising the following steps: - Providing a first side plate (2a) in which a first groove (4a) open perpendicularly to the first side plate (2a) is made; - connecting the first side panel (2a) to a second side panel (2b) by means of a first connection system (3a), such that a second groove (4b) of the second side panel (2b) is aligned with the first groove (4a); - Connecting the second side panel (2b) to a third side panel (2c) by means of a second connection system (3b) in such a way that a third groove (4c) of the third side panel (2c) is aligned with the second groove (4b), so that the first side panel (2a), the second side plate (2b) and the third side plate (2c) form a basic shape open in a first direction of insertion (31), for example a U-shape; - Sliding a base plate (5) into the grooves (4a, 4b, 4c) along a second insertion direction (32), which is opposite to the first insertion direction (31), such that the base plate (5) has a groove base of the second groove (4b ) contacted to allow relative movement of a fourth side panel (2d) to the first side panel (2a) across the first groove (4a); - Connecting the first side panel (2a) and the third side panel (2c) to the fourth side panel (2d) by means of a third and fourth connection system (3c, 3d), such that a fourth groove (4d) of the fourth side panel (2d) with the first and third grooves (4a, 4c) are aligned; - Locking displacement of the base plate (5) along the first insertion direction (31) so that the base plate (5) contacts a groove base of the fourth groove (4d) in order to transverse the relative movement of the fourth side plate (2d) to the first side plate (2a). to prevent the first groove (4a). procedure after claim 7 , characterized in that the base plate (5) is displaced along the first insertion direction (31) by the amount of a groove depth of the fourth groove (4d). Procedure according to one of Claims 7 or 8th , characterized in that in the base plate (5) at least one locking pin is arranged to prevent displacement of the base plate (5) along the first insertion direction (31). Procedure according to one of Claims 7 until 9 , characterized in that the respective side plates (2a, 2b, 2c, 2d) are connected to each other via a movement along a shearing direction of the respective side plates (2a, 2b, 2c, 2d) to each other.

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