Modular, multi-assembly and disassembly rack system

Abstract

Modular, multi-assemblable and disassemblable rack system, comprehensive - Connecting node elements with a central element, from which • Coupling parts for horizontal and • Coupling parts or connecting elements for vertical arrangement are required, - Tubular connecting elements with coupling parts for horizontal arrangement, - Tubular connecting elements with coupling parts or with screwable connecting elements for vertical arrangement, - Foot elements, as well as - Cover parts, wherein all the aforementioned coupling parts are matched to each other, lockable and unlockable, and wherein the tubular connecting elements with coupling parts or with screwable connecting elements for arrangement in the vertical are connectable or screwable through the central elements either to a foot element or to another tubular vertical connecting element, characterized in that each connecting node element has a central element (1), From each central element (1) extend one to four either rigid coupling parts (2) or coupling parts with an elastic part (4) for arrangement in the horizontal, the longitudinal axes of which lie in a plane and are arranged at an angle of 90° to the vertical longitudinal axis of the central element (1), and these coupling parts are arranged at an angle of 90° or at an angle of 180° to each other, the tubular connecting elements (3) for the arrangement in the horizontal each have at their two ends an internal coupling part adapted to the rigid coupling part (2) or to the coupling part with an elastic part (4) on the central element (1), Each tubular connecting element (3) for the horizontal arrangement has at both end regions in the outer wall an opening (5) arranged in a line through which the elastic part (4) is visible, wherein said line runs parallel to the longitudinal axis of the tubular connecting element (3) for the horizontal arrangement, and wherein said line and said longitudinal axis lie in a planar plane, where according to a first variant from each central element (1) extend one or two either rigid coupling parts (2) or coupling parts with an elastic part (4) for arrangement in the vertical, the longitudinal axes of which correspond to the vertical longitudinal axis of the central element (1), the tubular connecting elements (3) for the arrangement in the vertical each have at their two ends an internal coupling part adapted to the rigid coupling part (2) or to the coupling part with an elastic part (4) on the central element (1), Each tubular connecting element (3) for the vertical arrangement has at both end regions in the outer wall an opening (5) arranged in a line through which the elastic part (4) is visible, wherein said line runs parallel to the longitudinal axis of the tubular connecting element (3) for the vertical arrangement, and wherein said line and said longitudinal axis lie in a planar plane, the cross-sections • the rigid coupling parts (2) or the coupling parts with an elastic part (4) extending from the connecting node elements and • the tubular connecting elements (3) are positively matched to each other with either an internal rigid coupling part (2) or with an internal coupling part with an elastic part (4), and wherein according to a second variant Each connecting node element is cylindrical in the vertical direction and has a centrally arranged perforated plate (6), wherein the hole (7) is centrally arranged, Each tubular connecting element (3) for vertical arrangement has an internal thread (8) at each of its two ends, wherein a centrally arranged threaded pin (9) is screwed into one of the two internal threads (8), the diameter of this threaded pin (9) being matched to the diameter of the hole (7) in the perforated plate (6), and the cross-sections • the cylinders extending vertically from the connecting node elements and • the tubular connecting elements (3) for vertical arrangement are interlocking and perfectly aligned.

Description

Field of invention

[0001] The present invention relates to a modular, multi-assemblable and disassemblable frame system. State of the art

[0002] EP 0 400 345 B1 describes connecting elements and frame systems based on them. Wedge-shaped sleeves or wedges are inserted into tubular struts. These are pulled against each other by means of a clamping screw, thereby wedging themselves against the struts and creating a force-fit connection with a corner element or an internal element. The numerous individual parts of the connecting elements are difficult to manufacture and require special tools for assembly. The openings in the corner elements or internal elements are always visible and aesthetically unappealing.

[0003] EP 1 615 528 B1 also describes connecting elements and frame systems based on them. The connecting element for joining tubular struts has coupling elements extending from a central element, the longitudinal axes of which lie in a common plane. The coupling elements for horizontal arrangement have a rotationally cylindrical basic shape and at least one coupling recess. The coupling elements are connected to the struts by means of a bayonet fitting and twisted together. The resulting connection is secured with a setscrew.

[0004] To unlock, the grub screw is loosened and the bayonet fitting is screwed back on.

[0005] A tubular strut for vertical arrangement is screwed through the perforated plate in the central element either to a foot or to another tubular strut for vertical arrangement.

[0006] Assembling the individual parts is time-consuming, and there is a risk of incorrectly screwing parts in. It's possible that the screws will be either overtightened or undertightened.

[0007] EP 1 444 912 A1 describes a releasable snap connection between an elastic and a rigid part. The locking element has a slidably mounted sleeve along its shaft for releasing the snap connection. This type of releasable connection is called a "push to open" connection. Description of the invention

[0008] One objective of the present invention is to provide a modular, multi-assembly and disassemblyable rack system.

[0009] This racking system is intended to eliminate the aforementioned disadvantages.

[0010] This frame system is designed to allow for easy connection between the individual connecting parts, thus preventing incorrect assembly.

[0011] This rack system should be stable and easy to assemble and disassemble using simple tools.

[0012] The various individual parts should be easy, quick, precise and inexpensive to manufacture.

[0013] The various individual parts should be easy to store.

[0014] These goals are achieved with the present invention.

[0015] The modular, multi-assemblable and disassemblable frame system according to the invention, comprising - Connecting node elements with a central element, from which • Coupling parts for horizontal and • Coupling parts or connecting elements for vertical arrangement are required, - Tubular connecting elements with coupling parts for horizontal arrangement, - Tubular connecting elements with coupling parts or with screwable connecting elements for vertical arrangement, - Foot elements, as well as - Cover parts, wherein all the aforementioned coupling parts are matched to each other, lockable and unlockable, and wherein the tubular connecting elements with coupling parts or with screwable connecting elements for arrangement in the vertical through the central elements can be connected or screwed either to a foot element or to another tubular vertical connecting element, is characterized by the fact that Each connecting node element has a central element 1, From each central element 1 extend one to four either rigid coupling parts 2 or coupling parts with an elastic part 4 for horizontal arrangement, the longitudinal axes of which lie in a plane and are arranged at an angle of 90° to the vertical longitudinal axis of the central element 1, and these coupling parts are arranged at an angle of 90° or at an angle of 180° to each other. the tubular connecting elements 3 for the arrangement in the horizontal each have at their two ends an internal coupling part matched to the rigid coupling part 2 or to the coupling part with an elastic part 4 on the central element 1, Each tubular connecting element 3 for the horizontal arrangement has at both end regions in the outer wall an opening 5 arranged in a line through which the elastic part 4 is visible, wherein said line runs parallel to the longitudinal axis of the tubular connecting element 3 for the horizontal arrangement, and wherein said line and said longitudinal axis lie in a planar plane, where according to a first variant From each central element 1 extend one or two either rigid coupling parts 2 or coupling parts with an elastic part 4 for arrangement in the vertical, the longitudinal axes of which correspond to the vertical longitudinal axis of the central element 1, the tubular connecting elements 3 for the arrangement in the vertical each have at their two ends an inner coupling part matched to the rigid coupling part 2 or to the coupling part with an elastic part 4 on the central element 1, Each tubular connecting element 3 for the vertical arrangement has at both end regions in the outer wall an opening 5 arranged in a line through which the elastic part 4 is visible, wherein said line runs parallel to the longitudinal axis of the tubular connecting element 3 for the vertical arrangement, and wherein said line and said longitudinal axis lie in a planar plane, the cross-sections • the rigid coupling parts 2 or the coupling parts with an elastic part 4 extending from the connecting node elements and • the tubular connecting elements 3 with either an internal rigid coupling part 2 or with an internal coupling part with an elastic part 4 are fitted together in a form-fitting manner and wherein according to a second variant Each connecting node element is cylindrical in the vertical direction and has a centrally arranged perforated plate 6, with the hole 7 being centrally arranged. Each tubular connecting element 3 for vertical arrangement has an internal thread 8 at each end, wherein a centrally arranged threaded pin 9 is screwed into one of the two internal threads 8, the diameter of this threaded pin 9 being matched to the diameter of the hole 7 in the perforated plate 6, and the cross-sections • the cylinders extending vertically from the connecting node elements and • the tubular connecting elements 3 for the arrangement in the vertical are interlocking and perfectly aligned.

[0016] Preferred embodiments of this invention are defined in the dependent claims.

[0017] The rack system according to the invention can be used for the manufacture of furniture, in particular shelves, bookcases, cabinets and boxes. Brief description of the drawings

[0018] The following section describes possible embodiments of the present invention.

[0019] Reference is also made to the characters, all of which are purely schematic. Fig. Figure 1 shows an exploded view from a slant above of a first embodiment of a connecting node element with a central element 1, wherein three rigid coupling parts 2 are used in the horizontal and two in the vertical. Fig. 2 shows a side view from the front of the in Fig. 1 connection node element shown with a central element 1, wherein only two rigid coupling parts 2 arranged in the horizontal are shown. Fig. Figure 3a shows a cross-section through a first embodiment of a rigid coupling part 2. Fig. Figure 3b shows a cross-section through a second embodiment of a rigid coupling part 2. Fig. Figure 4 shows a longitudinal section through the two end regions of a tubular connecting element 3 for arrangement in the horizontal or vertical direction, wherein the coupling parts are designed with an elastic part 4 as an insert 10. Fig. Figure 5 shows a perspective view from a slightly oblique angle of above of a longitudinal section through a [structure / building / etc.]. Fig. 4 shown insert 10. Fig. Figure 6 schematically shows in longitudinal section the assembly step of a rigid coupling part 2 with the coupling part with an elastic part 4 in the tubular connecting element 3. Fig. Figure 7 shows an exploded view from an oblique angle above of a second embodiment of a connecting node element with a central element 1, wherein three rigid coupling parts 2 are used in the horizontal plane and the tubular connecting elements 3 are screwed together through the hole 7 in the perforated plate 6 in the vertical plane. Fig. Figure 8 shows a top view of the in Fig. 7 shown connection node element with a central element 1. Fig. Figure 9 shows a longitudinal section through the two end regions of a tubular connecting element 3 for the arrangement in the vertical direction according to the second embodiment. Fig. Figure 10 shows the assembly steps in the horizontal plane in a top view according to a possible first embodiment. Fig. Figure 11 shows the assembly steps in the horizontal plane in a top view according to a possible second embodiment. Fig. Figure 12 shows a side view from a slant above of a mounted shelf with two elements in length and three elements in height. Possible embodiments of the invention

[0020] From each central element 1 extend one to four either rigid coupling parts 2 or coupling parts with an elastic part 4 for horizontal arrangement, whose longitudinal axes lie in a plane and are arranged at an angle of 90° to the vertical longitudinal axis of the central element 1. The aforementioned coupling parts 2 are arranged at an angle of 90° or 180° to each other.

[0021] The tubular connecting elements 3 for the arrangement in the horizontal have at both their ends an internal coupling part that is matched to the rigid coupling part 2 or to the coupling part with an elastic part 4 on the central element 1.

[0022] According to a first variant, one or two either rigid coupling parts 2 or coupling parts with an elastic part 4 extend from each central element 1 for arrangement in the vertical, the longitudinal axes of which correspond to the vertical longitudinal axis of the central element 1.

[0023] The tubular connecting elements 3 for the arrangement in the vertical have at both their ends an internal coupling part that is matched to the rigid coupling part 2 or to the coupling part with an elastic part 4 on the central element 1.

[0024] According to a second variant, each connecting node element has a cylindrical central element 1 in the vertical direction with a centrally arranged perforated plate 6, with the hole 7 being centrally located.

[0025] Each tubular connecting element 3 for the arrangement in the vertical has an internal thread 8 at each of its two ends, wherein a centrally arranged threaded pin 9 is screwed into one of the two internal threads 8, the diameter of this threaded pin 9 being matched to the diameter of the hole 7 in the perforated plate 6.

[0026] In other words, in the horizontal direction the connection is always between a rigid coupling part 2 and a coupling part with an elastic part 4.

[0027] In the vertical direction, the connection is made according to a first variant between a rigid coupling part 2 and a coupling part with an elastic part 4 or according to a second variant by screwing the connecting parts 8,9 together.

[0028] It is preferred that in both the first variant and the second variant, rigid coupling parts 2 extend from each central element 1 for arrangement in the horizontal.

[0029] As a result, the internal coupling parts in the tubular connecting elements 3 have a coupling part with an elastic part 4.

[0030] However, it is also possible that in both the first and second variants, each central element has 1 coupling part with an elastic part 4 for the arrangement in the horizontal.

[0031] As a result, the rigid coupling parts 2 are arranged inside the tubular connecting elements 3.

[0032] The following section describes a possible embodiment according to the first variant mentioned above.

[0033] The following dimensions are to be understood as guidelines from a prototype and must be adjusted and verified for practical use.

[0034] The in Fig. The connection node element shown in Figure 1 has a central element 1 from which three rigid coupling parts 2 extend horizontally and two rigid coupling parts 2 extend vertically.

[0035] The central element 1 and the rigid coupling parts 2 are manufactured as individual parts and are made of a metal or alloy and are preferably chrome-plated.

[0036] The rigid coupling parts 2 are fixed to the central element 1 by means of pins 17. The five cylinders 18 extending from the central element 1 for receiving the rigid coupling parts 2 have a length of 5.98 mm, an outer diameter of 20.84 mm, an inner diameter of 15.8 mm and thus a wall thickness of 2.52 mm.

[0037] Halfway along the length of each cylinder wall there is a through bore 19 and on the opposite side a half bore 20 for receiving and fixing the pins 17.

[0038] One or two holding devices 13 for a plate, in particular for a glass plate, can extend from the central element 1.

[0039] The rigid coupling parts 2 have a cylindrical shape with a diameter of 15.8 mm on the side facing the central element 1 and have a through bore 22 arranged centrally in the cylinder 21.

[0040] The rigid coupling parts 2 extend towards the side facing away from the central element 1, tapering from an initial 6.9 mm to 4.0 mm over a distance of 40.2 mm.

[0041] The rigid coupling parts 2 have a chamfered and tapered notch 14 at their ends, which runs parallel to or at a 90° angle to the through bore 22 located centrally in the cylinder 21. During assembly, the coupling part with an elastic part 4 slides over this chamfered and tapered notch 14 and then engages.

[0042] The tubular connecting elements 3 each have at their two ends an inner coupling part with an elastic part 4, which is matched to the rigid coupling part 2 on the central element 1.

[0043] The internal coupling components, including an elastic part 4, are designed as inserts 10. These inserts, made of plastic, have a length of 54.3 mm, an inner diameter of 12.75 mm, and a wall thickness of 1.9 mm. They feature an opening 26 on their outer surface, aligned with the opening 5 in the tubular connecting element 3, through which the elastic part 4 is visible. They preferably have ribs 11 along their longitudinal axis on their outer surface. The inserts 10 are pressed into the tubular connecting elements 3 and may also be bonded. The end of the inserts 10 that is pressed into the tubular connecting elements 3 may be chamfered.

[0044] The tubular connecting elements 3 can have an additional opening through which the insert 10 can be further secured with a setscrew. The setscrew is preferably countersunk.

[0045] The tubular connecting elements 3 each have an opening 5 at both ends in the outer wall, arranged in a line such that the elastic part 4 is visible. This line runs parallel to the longitudinal axis of the tubular connecting element 3. This line and the aforementioned longitudinal axis lie in a planar plane.

[0046] Through these openings 5,26, the matched, unlockable coupling parts 2,4 can be unlocked by the action of a pin applied from the outside.

[0047] In a fully assembled rack system, these openings (5) should not be noticeable for aesthetic reasons.

[0048] It is preferred that these openings 5 ​​are directed either inwards or downwards in a horizontal direction.

[0049] In the vertical direction, for a connecting node element arranged in a corner, these openings 5 ​​can lie on the inward-facing angle bisector. For an inwardly arranged connecting node element, these openings 5 ​​can face inwards.

[0050] Depending on the desired orientation of these openings 5 ​​in a fully assembled rack system, the rigid coupling parts 2 for the arrangement in the horizontal and the rigid coupling parts 2 for the arrangement in the vertical must be aligned accordingly.

[0051] It is also possible that a hollow rivet 12 is pressed into the openings 5 ​​in the tubular connecting elements 3 and into the openings 26 in the insert 10, through which the elastic part 4 is visible.

[0052] This hollow rivet 12 serves on the one hand to fix the insert 10 against rotation and on the other hand the matching, unlockable coupling parts 2,4 can be unlocked through the opening in the hollow rivet 12 by the action of a pin applied from the outside.

[0053] The coupling part with an elastic part 4 in the tubular connecting element 3 is designed as an insert 10 and is rigidly fixed to the insert 10 at one end over a length of 12.5 mm and over the entire inner diameter of the insert 10 and extends upwards towards the other end and projects freely from the inner wall of the insert 10.

[0054] This protruding part has a length of 36.6 mm. At a distance of 15.0 mm from the free end of the coupling part with an elastic part 4, there is a chamfered notch 15 which is aligned with the notch 14 in the rigid coupling part 2.

[0055] The inserts 10 can be made of a plastic.

[0056] The tubular connecting elements 3 have a round cross-section, an outer diameter of approximately 19.0 mm and can have lengths of 73 cm, 36 cm or 17 cm.

[0057] The outer diameters of the five cylinders 18 extending from the central element 1 for receiving the rigid coupling parts 2 and the outer diameters of the tubular connecting elements 3 can be the same or slightly different depending on the desired design.

[0058] The tubular connecting elements 3 can be made of steel, preferably of chromium steel.

[0059] The following section describes a possible embodiment according to the second variant mentioned above.

[0060] The following dimensions are to be understood as guidelines from a prototype and must be adjusted and verified for practical use.

[0061] The in Fig. The connection node element shown in Figure 7 has a central element 1 from which three rigid coupling parts 2 extend horizontally.

[0062] These rigid coupling parts 2 are constructed analogously to the first variant described above and are fixed to the central element 1.

[0063] This central element 1 is cylindrical in the vertical direction and has a centrally arranged perforated plate 6. The hole 7 in the perforated plate 6 is centrally located. The outer diameter of the cylinder 23 is 21.8 mm and the inner diameter is 19.0 mm, resulting in a wall thickness of 1.4 mm.

[0064] The cylinder 23 has a total length of 25.0 mm, and a 5.0 mm thick perforated plate 6 is arranged at a distance of 10 mm from the cylinder ends. The diameter of the hole 7 in the perforated plate 6 is 6.4 mm.

[0065] Thus, the tubular connecting elements 3 for vertical arrangement fit into the free cylindrical volumes emanating from the perforated plate 6.

[0066] One or two holding devices 13 for a plate, in particular for a glass plate, can extend from the central element 1.

[0067] The tubular connecting elements 3 for vertical arrangement have a round cross-section, an outer diameter of approximately 19.0 mm and can have lengths of 73 cm, 36 cm, 17 cm, 11 cm or 6 cm.

[0068] The outer diameters of the tubular connecting elements 3 for the arrangement in the vertical are matched to the inner diameter of the two cylinders 23 extending vertically from the central element 1.

[0069] The tubular connecting elements 3 can be made of steel, preferably of chromium steel.

[0070] A 10.0 mm long cylinder with an internal thread 8 is pressed into each of the two ends of a tubular connecting element 3 for vertical arrangement. The diameter of the thread 8 is 5.2 mm.

[0071] The distance from the end of the pipe to the beginning of the internal thread 8 is 2.5 mm.

[0072] A centrally arranged threaded stud 9 is screwed into one of the two internal threads 8, the diameter of this threaded stud 9 being matched to the diameter of the hole 7 in the perforated plate 6.

[0073] The threaded pin 9 has a length of 27.7 mm. At a distance of 7.0 mm from the first end of the threaded pin 9 and at a distance of 16.0 mm from the second end of the threaded pin 9, there is a 4.7 mm long, unthreaded thickening 24. This thickening 24 serves as a stop when screwing the threaded pin 9 into the internal thread 8.

[0074] The threaded pin 9 is screwed into the cylinder 23 with the shorter thread length of 7.0 mm.

[0075] The end of the tubular connecting element 3 opposite the screwed-in threaded pin 9 can have at least two symmetrically arranged mounting notches 16.

[0076] The tubular connecting elements 3 for the arrangement in the vertical are preferably rounded at their ends.

[0077] A modular, multi-assemblable and disassemblable rack system according to the first variant mentioned above, in the form of a shelf with two elements in length and three elements in height, can be assembled as follows: Step 1: Two shorter tubular connecting elements 3 for horizontal arrangement are connected on both sides to a connecting node element to be arranged in a corner and equipped accordingly, and placed on a work surface. Step 2: A shorter tubular connecting element 3 for horizontal arrangement is connected on both sides to an internally arranged and appropriately equipped connecting node element and placed on the same work surface between the product obtained according to step 1. Step 3: Four longer, tubular connecting elements 3 are placed between the prepared parts for horizontal arrangement, and all parts are pushed together. Synchronous pushing together is necessary at certain points. Steps 1 to 3 are repeated three times. Step 4: For a product obtained after step 3, the foot elements 25 are mounted at all six points into the cylinder 18 extending vertically downwards from the connecting node element. Step 5: At all six points, the tubular connecting elements 3 for the vertical arrangement are mounted in the cylinders 18 extending vertically upwards from the connecting node element. Step 6: A product obtained after step 5 is placed on top of a product obtained after step 3 and synchronously connected at all six points with the mounted tubular connecting elements 3 for the arrangement in the vertical. Steps 5 and 6 are repeated twice. Step 7: The cover parts are mounted at all six points in the empty cylinders 18 extending vertically upwards from the connecting node element.

[0078] The desired shelves, lids, back panels, and side panels can be assembled and disassembled according to current technical standards. Likewise, accessories such as drawers, hinged doors, or drop-down doors can be assembled and disassembled according to current technical standards.

[0079] The shelf, once assembled, can be disassembled as follows: The bases, lids, back panels and side panels, as well as the accessories, are removed.

[0080] The cover parts are removed. The uppermost product obtained after step 3 is unlocked at all six points by the action of an externally applied pin through the upper openings 5 ​​in the tubular connecting elements 3 for the arrangement in the vertical and the opening 26 in the insert 10, lifted synchronously and disassembled into its individual parts.

[0081] The six tubular connecting elements 3 for the arrangement in the vertical are unlocked and removed by the action of a pin applied from the outside through the lower openings 5 ​​and the opening 26 in the insert 10.

[0082] These steps are repeated until all parts are disassembled.

[0083] A modular, multi-assemblable and disassemblable rack system according to the second variant mentioned above, in the form of a shelf with two elements in length and three elements in height, can be assembled as follows: Step 1: Two shorter tubular connecting elements 3 for horizontal arrangement are connected on both sides to a connecting node element to be arranged in a corner and equipped accordingly, and placed on a work surface. Step 2: A shorter tubular connecting element 3 for horizontal arrangement is connected on both sides to an internally arranged and appropriately equipped connecting node element and placed on the same work surface between the product obtained according to step 1. Step 3: Four longer, tubular connecting elements 3 are placed between the prepared parts for horizontal arrangement, and all parts are pushed together. Synchronous pushing together is necessary at certain points. Steps 1 to 3 are repeated three times. Step 4: For a product obtained after step 3, the foot elements 25 are placed at all six positions under the cylinder 23 extending vertically downwards from the connecting node element. Step 5: At all six points, the tubular connecting elements 3 for the vertical arrangement are inserted into the cylinder 23 extending vertically upwards from the connecting node element with the threaded pin 9 leading and screwed to the foot element 25. Step 6: A product obtained after step 5 is placed on top of a product obtained after step 3 and screwed together at all six points with a tubular connecting element 3 for vertical arrangement. Step 7: A product obtained after step 6 is placed on top of a product obtained after step 3 and screwed together at all six points with a tubular connecting element 3 for vertical arrangement. Step 8: For a product obtained after step 7, a product obtained after step 3 is placed and the cover parts are screwed and pressed into the cylinder 23 extending vertically upwards from the connecting node element at all six points. The desired shelves, lids, back panels, and side panels can be assembled and disassembled according to current technical standards. Likewise, accessories such as drawers, hinged doors, or drop-down doors can be assembled and disassembled according to current technical standards.

[0084] The shelf, once assembled, can be disassembled as follows: The bases, lids, back panels and side panels, as well as the accessories, are removed.

[0085] The cover parts are removed. The top product obtained after step 3 is lifted and disassembled into its individual parts.

[0086] The rigid coupling part 2 and the coupling part with an elastic part 4 are unlocked by the action of an externally applied pin through the openings 5 ​​in the tubular connecting elements 3 for the arrangement in the horizontal and the opening 26 in the insert 10.

[0087] The six tubular connecting elements 3 for the vertical arrangement are unscrewed.

[0088] These steps are repeated until all parts are disassembled. Reference symbols used

[0089] The following reference numerals are used in the present invention: 1 Central element 2 Rigid coupling parts 3 tubular connecting elements for horizontal or vertical arrangement 4 Elastic part on a coupling part 5 Opening in the outer wall of a tubular connecting element 3 for arrangement in the horizontal or vertical direction 6-hole plate 7 holes in the perforated plate 6 8 Internal thread 9 threaded studs (size M6) 10 Insert 11 ribs 12 hollow rivets 13 Holding device 14 Notch on the rigid coupling part 2 15 Notch on the coupling part with an elastic part 4 16 Mounting notch 17 pens 18 Cylinders extending from the central element 1 in a horizontal or vertical direction 19 Through bore in cylinder 18 20 Half bore in cylinder 18 21 cylinders on the rigid coupling part 2 22 Through bore in cylinder 21 23 Cylinder extending vertically from the central element 1 according to the second variant 24 Thickening on the threaded pin 9 25 Foot element 26 Opening in insert 10. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] EP 0 400 345 B1

[0002] EP 1 615 528 B1

[0003] EP 1 444 912 A1

[0007]

Claims

[1] Modular, multi-assemblable and disassemblable frame system, comprising - Connecting node elements with a central element, from which • Coupling parts for horizontal and • Coupling parts or connecting elements for vertical arrangement are required, - Tubular connecting elements with coupling parts for horizontal arrangement, - Tubular connecting elements with coupling parts or with screwable connecting elements for vertical arrangement, - Foot elements, as well as - Cover parts, wherein all the aforementioned coupling parts are matched to each other, lockable and unlockable, and wherein the tubular connecting elements with coupling parts or with screwable connecting elements for arrangement in the vertical through the central elements can be connected or screwed either to a foot element or to another tubular vertical connecting element, characterized by , that each connecting node element has a central element (1), From each central element (1) extend one to four either rigid coupling parts (2) or coupling parts with an elastic part (4) for arrangement in the horizontal, the longitudinal axes of which lie in a plane and are arranged at an angle of 90° to the vertical longitudinal axis of the central element (1), and these coupling parts are arranged at an angle of 90° or at an angle of 180° to each other, the tubular connecting elements (3) for the arrangement in the horizontal each have at their two ends an internal coupling part adapted to the rigid coupling part (2) or to the coupling part with an elastic part (4) on the central element (1), Each tubular connecting element (3) for the horizontal arrangement has at both end regions in the outer wall an opening (5) arranged in a line through which the elastic part (4) is visible, wherein said line runs parallel to the longitudinal axis of the tubular connecting element (3) for the horizontal arrangement, and wherein said line and said longitudinal axis lie in a planar plane, where according to a first variant from each central element (1) extend one or two either rigid coupling parts (2) or coupling parts with an elastic part (4) for arrangement in the vertical, the longitudinal axes of which correspond to the vertical longitudinal axis of the central element (1), the tubular connecting elements (3) for the arrangement in the vertical each have at their two ends an internal coupling part adapted to the rigid coupling part (2) or to the coupling part with an elastic part (4) on the central element (1), Each tubular connecting element (3) for the vertical arrangement has at both end regions in the outer wall an opening (5) arranged in a line through which the elastic part (4) is visible, wherein said line runs parallel to the longitudinal axis of the tubular connecting element (3) for the vertical arrangement, and wherein said line and said longitudinal axis lie in a planar plane, the cross-sections • the rigid coupling parts (2) or the coupling parts with an elastic part (4) extending from the connecting node elements and • the tubular connecting elements (3) are positively matched to each other with either an internal rigid coupling part (2) or with an internal coupling part with an elastic part (4), and wherein according to a second variant Each connecting node element is cylindrical in the vertical direction and has a centrally arranged perforated plate (6), wherein the hole (7) is centrally arranged, Each tubular connecting element (3) for vertical arrangement has an internal thread (8) at each of its two ends, wherein a centrally arranged threaded pin (9) is screwed into one of the two internal threads (8), the diameter of this threaded pin (9) being matched to the diameter of the hole (7) in the perforated plate (6), and the cross-sections • the cylinders extending vertically from the connecting node elements and • the tubular connecting elements (3) for vertical arrangement are interlocking and perfectly aligned. [2] Rack system according to claim 1, characterized by , that - the tubular connecting elements (3) with internal coupling parts for arrangement in the horizontal and - the tubular connecting elements (3) with internal coupling parts or with screwable connecting elements (8,9) for arrangement in the vertical have a round or a polygonal, in particular a square, hexagonal or octagonal, cross-section. [3] Frame system according to one of claims 1 to 2, characterized by , that the coupling parts are designed with an elastic part (4) in the tubular connecting elements (3) for arrangement in the horizontal or vertical orientation as an insert (10), which has on its outside an opening (26) adapted to the opening (5) in the tubular connecting element (3), through which the elastic part (4) is visible, and which preferably has ribs (11) along its longitudinal axis on its outside. [4] Rack system according to claim 3, characterized by, that the inserts (10) are pressed into the tubular connecting elements (3) and may also be additionally glued for better fixation. [5] Frame system according to one of claims 3 to 4, characterized by , that the tubular connecting elements (3) each have an additional opening in the outer wall at both end regions, which lie on the same line as the line formed by the openings (5) through which the elastic part (4) is visible, and through which a fixing element for fixing the insert (10) is introduced, for example in the form of a setscrew. [6] Frame system according to any one of claims 1 to 5, characterized by , that a hollow rivet (12) is pressed into the openings (5) in the tubular connecting elements (3) through which the coupling part with an elastic part (4) is visible. [7] Frame system according to any one of claims 1 to 6, characterized by that the connecting node elements have at least one holding device (13) for a plate, in particular for a glass plate. [8] Rack system according to claim 7, characterized by , that the holding device (13) for a plate is located on the angle bisector between two either rigid coupling parts (2) or coupling parts with an elastic part (4) for arrangement in the horizontal. [9] Frame system according to any one of claims 1 to 8, characterized by , that the rigid coupling parts (2) and the coupling parts with an elastic part (4) each have a matching, chamfered notch (14,15) for the purpose of locking in. [10] Frame system according to any one of claims 1 to 9, characterized by , that the rigid coupling parts (2) extending from the central element (1) taper towards the side facing away from the central element (1) and have a notch (14) at their end. [11] Frame system according to any one of claims 1 to 10, characterized by , that the coupling parts with an elastic part (4) in the tubular connecting elements (3) taper towards the end of the tube and have a notch (15) at their end. [12] Frame system according to any one of claims 1 to 11, characterized by , that - the rigid coupling parts (2) are designed as plates, preferably as rectangular plates, which have a centrally arranged opening, in particular a square or rectangular opening, and that - the coupling parts are designed with an elastic part (4) as rounded or chamfered notches (15) or as pins with a round or polygonal cross-section and are arranged in such a way that they snap into the opening in the aforementioned plates. [13] Frame system according to any one of claims 1 to 12, characterized by, that the openings (5) in the outer wall of the tubular connecting elements (3) for the arrangement in the horizontal in assembled form are directed either inwards or downwards. [14] Frame system according to any one of claims 1 to 13, characterized by , that the tubular connecting elements (3) for arrangement in the vertical are rounded at their ends. [15] Frame system according to any one of claims 1 to 14, characterized by , that the tubular connecting elements (3) equipped with screwable connecting elements (8,9) have at least two symmetrically arranged mounting notches (16) for arrangement in the vertical on the end opposite the screwed-in threaded stud (9). [16] Frame system according to any one of claims 1 to 15, characterized by, that the central element (1) and either the rigid coupling parts (2) or the coupling parts with an elastic part (4) are manufactured as individual parts and are connected to each other by means of a pressed-in pin (17). [17] Frame system according to any one of claims 1 to 15, characterized by , that the central element (1) and the rigid coupling parts (2) are cast in one piece and are in particular made of an alloy or of steel. [18] Frame system according to any one of claims 1 to 17, characterized by that the tubular connecting elements (3) are made of steel, preferably of chromium steel. [19] Frame system according to any one of claims 3 to 18, characterized by , that the inserts (10) are made of a plastic. [20] Use of the frame system according to any one of claims 1 to 19 for the manufacture of furniture, in particular shelves, bookcases, cabinets and boxes.

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