A set of panels including a first panel and a second panel configured to assume a locked state in which a first main plane of the first panel is arranged at an angle of between 30° and 150° relative to a second main plane of the second panel. A separate tongue arranged in an insertion groove of a groove is configured to cooperate with a tongue groove provided in an edge section of the second panel for locking the first and second panels to each other in a first direction perpendicular to the first main plane, and the edge section is configured to cooperate with the groove for locking the first and second panels to each other in a second direction parallel to the first main plane. A bottom portion of the groove includes an elevated portion arranged at least in an outer section of the groove along the second direction, wherein an area of the elevated portion is at least 3% of an area of a rectangular bounded region extending along boundaries of the bottom portion.

A system for fastening panels at 90-degree angles and at 180-degree angles is provided comprising a frame hammer assembly attached proximate a first edge of a first panel and a frame dowel pin assembly attached proximate a second edge of a second panel. At least one dowel pin protrudes from the dowel pin assembly, the at least one pin inserted into an alignment hole in the frame hammer assembly upon placement of the first edge against the second edge and alignment of the assemblies. A rotatable hammer attached to the hammer assembly, the hammer attached, after rotation, to the dowel pin assembly. A hammer magnet is attached to the hammer and one of a frame magnet and a frame steel plate attached to the dowel pin assembly, the hammer magnet and the one of the frame magnet and frame steel plate attracting and contacting after rotation.

A quick-fitting stool includes a main plate, side plates, and corner protectors having same number as number of the side plates. Each of the side plates and the corner protectors are alternately arranged to form a circumferentially closed side wall. The corner protectors extend in a height direction, and the corner protectors includes first mounting surfaces and second mounting surfaces spliced to two adjacent side plates respectively. The first mounting surfaces and the second mounting surfaces are detachably connected to the two adjacent side plates. An outer side surface of the corner protectors is flush with an outer side surface of the side plates. The main plate is horizontally placed on upper side surfaces of the side plates. The side plates support the main plate, and is connected with an upper side edge of at least one of the side plates.

A cabinet assembly including a first frame having a first open channel, a second frame spaced from the first frame with the second frame having a second open channel, and a plurality of beams extending between the first and second frames and interlocking to each of the first and second frames. Each of the beams include a bottom side, a top side opposite the bottom side, and a pair of opposing recessed portions extending from the top and bottom sides. Each of the recessed portions has an upper surface and a lower surface with the upper surface being disposed below the top side. A portion of the bottom side and the entire recessed portion is disposed within the first open channel. The top side is disposed outside the first open channel to interlock the beam to the first and second frames.

A cabinet assembly including a first frame having a first open channel, a second frame spaced from the first frame with the second frame having a second open channel, and a plurality of beams extending between the first and second frames and interlocking to each of the first and second frames. Each of the beams include a bottom side, a top side opposite the bottom side, and a pair of opposing recessed portions extending from the top and bottom sides. Each of the recessed portions has an upper surface and a lower surface with the upper surface being disposed below the top side. A portion of the bottom side and the entire recessed portion is disposed within the first open channel. The top side is disposed outside the first open channel to interlock the beam to the first and second frames.

A hidden joining system with front activation for a bottom of a piece of furniture and furnishing items includes a front joining unit and a rear joining unit positioned between a bottom and a shoulder of the furniture, wherein each front and rear joining unit is attached beneath the thickness of the bottom of the furniture, wherein symmetry axes of the two front and rear joining units lie on a plane external and parallel to a center plane of the bottom and the front joining unit has a transmission element toward the rear joining unit.

The invention relates to a system for constructing a piece of furniture, partitions or an exhibition stand, said system comprising at least one supporting structure (10) which has a flat shape and comprises a plurality of side edges (10a, 10b), wherein interfaces (12) embodied and designed for connection to other system components are provided on at least two edges (10a, 10b). At least one adjusting element (14) is interlockingly and/or frictionally attached to the interfaces (12) arranged on the edges (10a, 10b) and pertaining to the at least one supporting structure (10). As a result of the interfaces (12) arranged in the edges (10a, 10b) of the supporting structure (10) and protected by the supporting structure being at least partially built into the supporting structure (10) and arranged in recesses (13) provided in the side edges (10a, 10b), and the at least one adjusting element (14, 14, 14) being attached to the interfaces (12) by means of a mating part to the respective interface (12), a flexible, modular system with interfaces on the edges of a supporting structure is provided, by means of which all of the functions of a piece of furniture can be covered. Furthermore, the supporting structure itself is constructed correspondingly.

A quick-fitting stool includes a main plate, side plates, and corner protectors having same number as number of the side plates. Each of the side plates and the corner protectors are alternately arranged to form a circumferentially closed side wall. The corner protectors extend in a height direction, and the corner protectors includes first mounting surfaces and second mounting surfaces spliced to two adjacent side plates respectively. The first mounting surfaces and the second mounting surfaces are detachably connected to the two adjacent side plates. An outer side surface of the corner protectors is flush with an outer side surface of the side plates. The main plate is horizontally placed on upper side surfaces of the side plates. The side plates support the main plate, and is connected with an upper side edge of at least one of the side plates.

The modular panel 20 interlocking and reinforcing mechanism for building enclosures pertains to assembling boxes 21 without using accessories. My mechanism joins modular panels 20 by interlocking between grooves 22 and grooves 22 and rods 18 attached to panel edges, thus creating the box 21. The embodiment of my mechanism joins modular panels 20 by interlocking both grooves 22 attached by living hinges 24 on the panel edges, thus creating the box 21. The living hinges 24 allow all the grooves 22 to turn forty five degrees at the corners. Upon interlocking both grooves 22, it completes the ninety degree dihedral angle transition from one panel 20 to another for corners. Another embodiment of present invention is to assemble a box 21 in expanded sizes by interlocking modular panels 20 flat or angled without extra accessories. An additional embodiment of my mechanism includes insertion of rods 18 attached to the panel edges into grooves 22 attached to another panel to form an interlocked rod and groove 60 on box 21. One type of the interlocking groove 22 mentioned above is a rolled sheet type with a smaller span at the opening than parallel spans at main sections in the groove in a cross-sectional view. The interlocked rod and groove 60 attached to panels on living hinges 24 can also serve as posts to take loads above them for a heavy-duty box.

A system for fastening panels at 90-degree angles and at 180-degree angles is provided comprising a frame hammer assembly attached proximate a first edge of a first panel and a frame dowel pin assembly attached proximate a second edge of a second panel. At least one dowel pin protrudes from the dowel pin assembly, the at least one pin inserted into an alignment hole in the frame hammer assembly upon placement of the first edge against the second edge and alignment of the assemblies. A rotatable hammer attached to the hammer assembly, the hammer attached, after rotation, to the dowel pin assembly. A hammer magnet is attached to the hammer and one of a frame magnet and a frame steel plate attached to the dowel pin assembly, the hammer magnet and the one of the frame magnet and frame steel plate attracting and contacting after rotation.