Shelving system and plug-in insert for connecting struts of a shelving system

Abstract

Shelving system (1) with a support strut (2), a width strut (3) and a depth strut (4), wherein the width and depth struts (3, 4) are arranged at an angle to one another, and with a device (6) for connecting the struts (2, 3, 4) to one another, wherein the device (6) is formed at least from a first plug-in insert (8) insertable into a front-side receptacle (7) of the width strut (3) and a second plug-in insert (10) insertable into a front-side receptacle (9) of the depth strut (4) and wherein the plug-in inserts (8, 10) are inserted into a respective receptacle (11, 12) in the support strut (2) assigned to each plug-in insert (8, 10), and are detachably connected to one another with preferably at least approximately intersecting longitudinal axes (13, 14), wherein the width and depth struts (3, 4) with their respective end-face receptacles (7, 9) are pushed onto the plug-in inserts (8, 10) inserted into the support strut (2) and are axially secured thereto by means of bolts (21, 24), wherein the width and depth struts (3, 4) define a storage level (5) for shelves and the like, wherein flat front ends of the width and depth struts (3, 4) abut against side surfaces of the support strut (2), and wherein the first and second bolts (21, 24) are each formed as a screw (16') with a countersunk head (28) and a tool holder (29) and, in the assembled state, are flush with a respective outer side (30) of a width and depth strut (3, 4).

Description

[0001] The invention relates to a shelving system, in particular a modular shelving system, comprising at least one support strut, one width strut and one depth strut.

[0002] Shelving systems made of a wide variety of materials and with various types of connections for connecting the supporting struts, width struts, and depth struts that essentially form the shelving system are known. Here, the width and depth struts, arranged at an angle to each other, form a respective storage level for shelves and the like.

[0003] DE 84 11 219 U1 describes a shelving system, particularly for laboratory equipment and technical workstations, consisting of support struts serving as supports and horizontal depth and width struts for forming storage levels and for supporting shelves, panels, and the like. At the joints of the struts, devices for connecting the struts are provided in the form of connecting pieces. These connecting pieces have two vertically aligned receptacles for receiving parts of a respective support strut. Furthermore, a horizontally aligned receptacle for a depth or width strut is arranged on the respective connecting piece.

[0004] Although the well-known shelving system is characterized by its comparatively high strength, its visual appearance is not very suitable as home furniture.

[0005] DE 84 11 219 U1 discloses a shelf structure composed of horizontal and vertical tubes.

[0006] DE 20 2015 008 734 U1 describes a pivoting corner connection for a cot.

[0007] The invention is based on the object of providing a shelving system which is mechanically resilient, has an appearance suitable for use as home furniture and whose components, in particular supporting, width and depth struts, can be combined in various ways.

[0008] The object is achieved according to the invention by a shelving system having the features of claim 1.

[0009] Because the device for connecting the said struts of the shelving system is formed from at least one first plug-in insert which can be inserted into a front-side receptacle of the width strut and a second plug-in insert which can be inserted into a front-side receptacle of the depth strut, and because the plug-in inserts are detachably connected to one another in a receptacle in the support strut which is assigned to each plug-in insert and preferably has longitudinal axes which at least approximately intersect, a firm and detachable plug-in connection of the individual said struts is created which is almost imperceptible from the outside and which enables a firm cohesion of the struts and a high load-bearing capacity of a shelving system formed from the struts.

[0010] Preferred embodiments result from the subclaims.

[0011] The plug inserts are inserted into the receptacles of the width and depth struts and secured against loosening due to tensile forces on these struts. In a particularly preferred embodiment of the invention, the receptacles for the plug inserts are arranged in the support strut such that one end of each plug insert can be firmly anchored with a screw connection formed directly by parts of each plug insert. For this purpose, each plug insert has a section, preferably an end section, provided with a thread, so that the plug inserts can be directly screwed together after being inserted into the receptacles of the support strut. This eliminates the need for additional connecting means.

[0012] At least one plug insert is preferably made of cylindrical or cylindrical solid material, in particular of a metal material, and one plug insert is formed by a screw with a sleeve slipped over it, wherein the first plug insert has an external thread at one of its axial ends, which can be screwed into a threaded bore made in the second plug insert transversely to the longitudinal axis of the second plug insert. The external thread can be formed by the screw with the sleeve. In this way, the two plug inserts can first be inserted into their respective receptacles in the support strut and then screwed together by turning the first plug insert. The plug inserts preferably protrude from the receptacles of the support strut with a predominant part of their total length.

[0013] On one of the plug inserts, on an axial section, preferably following the external thread, a positive diameter jump is formed in the manner of an edge arranged around the circumference of the plug insert, which edge can be formed by the sleeve. This diameter jump enables, regardless of the rotational position in which the first plug insert comes to rest in the end-face receptacle of the width or depth strut, a clamping engagement of a first bolt, which is guided transversely to the longitudinal axis of the strut in question through the end-face receptacle, preferably viewed in the axial direction of the strut in question. The bolt can also protrude into a receptacle guided transversely in the plug insert(s), in particular a threaded bore. This provides a simple way of axially securing the strut on the plug insert and can be actuated from the outside.

[0014] The socket insert, whose rotational position in the support strut mount and in the front-end mount of the depth strut can be specified during assembly, as it carries the threaded hole aligned with the external thread of the first socket insert, has a hole perpendicular to its longitudinal axis for axially securing it to the depth strut, which serves to engage a further, second bolt. The bolt can be designed as a countersunk head screw, which is guided in a threaded hole from an outer side of the depth strut to the socket insert.

[0015] While the first socket insert can be formed as a stepped cylinder-like bolt made of solid material, such as steel, or as a screw with a sleeve slipped over it, the second socket insert can be formed as a cylindrical bolt. It goes without saying that tensile-resistant and rigid materials other than steel can also be used to manufacture the socket inserts. Examples include high-strength, precisely manufactured carbon pressed parts and the like. To facilitate positioning of the first socket insert in its receptacle in a width or depth strut, it can be expedient to arrange a negative diameter step in the form of a diameter step at the end facing away from the positive diameter step. This negative diameter step, in the form of a taper, can be brought about by a screw head of the screw over which the sleeve is slipped.In the first socket insert, further threaded holes can be arranged between its ends for engaging further bolts or for forming a tool holder and for facilitating the rotation of the socket insert.

[0016] To create a particularly visually appealing shelving system, the invention provides that the respective bolts for axially securing the width and depth struts on the plug-in inserts are provided with a countersunk head. The countersunk head can be flush with the respective outer side of a strut in a countersunk hole.

[0017] To create a particularly high-load-bearing shelving system, the width, depth, and support struts are made of solid material, at least in the axial area of ​​their end-face mounts for the plug-in inserts. Preferably, the struts are made entirely of solid material. A metal profile with a square cross-section is particularly suitable for this.

[0018] To attach the shelving system to a wall, the support struts intended for wall mounting are preferably provided with at least one transverse hole each, into which suitable mounting hardware, such as screws, can be inserted. In addition to the first and second inserts, a third insert can be provided on each support strut. This allows for the creation of a shelving system with a corresponding number of units consisting of four support struts, four width struts, and four depth struts.

[0019] The invention will now be described using an exemplary embodiment. The figures show: Fig. 1: a perspective, schematic view of a part of a Fig. 2 shelving system shown, Fig. 2: a perspective, schematic view of a shelving system according to the invention, Fig. 3: a perspective view of a width and depth strut of the shelving system according to the invention with a device for connecting the struts; and Fig. 4: a perspective view of another shelving system according to the invention.

[0020] In Fig. 1 is a perspective, schematic view of a corner area as part of the Fig. 2. The corner area of ​​the shelving system 1 consists of a support strut 2 aligned vertically in the image plane, a horizontally aligned width strut 3 and a depth strut 4. The struts 2, 3, 4 form right angles to one another and are made of metallic profile bars with a square cross-section and preferably of solid material. The width and depth struts 3, 4 span a storage level 5. For the detachable, fixed connection of the struts 2, 3, 4, a device 6 is provided which consists of at least one piece inserted into a front-end receptacle 7 in the width strut (cf. Fig. 3) and a second plug-in insert 10 that can be inserted into a front-end receptacle 9 of the depth strut 4. The first plug-in insert 8 can be inserted into an associated receptacle 11, and the second plug-in insert 10 can be inserted into an associated receptacle 12 in the support strut 2. The longitudinal axes 13, 14 of the plug-in inserts 8, 10 intersect after insertion into the respective receptacles 11, 12.

[0021] How Fig. 3 shows, the plug inserts 8, 10 consist of the second plug insert 10 made of solid material and the first plug insert 8 made of a sleeve 19 with a screw 16' and thread 16 inserted through it. Alternatively, both plug inserts 8, 10 can be made of solid material. The plug inserts are in the Fig. 3, not shown, are screwed together with a screw connection 15. For this purpose, a section bearing a thread 16 is provided on each plug insert 8, 10, the first plug insert 8 having an external thread 16 at an axial end 18. When the plug inserts 8, 10 are assembled, the external thread 16 engages in a threaded bore 17 arranged transversely to the longitudinal axis 14 of the second plug insert 10.

[0022] Thus, the plug-in inserts 8, 10 are screwed together without the aid of connecting elements or only with a connecting element in the form of the screw 16' in the support strut 2. They are thus, as Fig. 1, is fixed in the support strut 2, immovably and detachably around all axes. The width strut 3 and the depth strut 4 can be pushed onto the plug-in inserts 8, 10 with their end-face receptacles 7 and 9.

[0023] How Fig. 3 shows, the screw 16' protrudes from the end of the sleeve 19, resulting in a positive diameter jump 20. The end of the sleeve 19 thus serves as a stop on the outer circumference of the plug insert 10. This allows the first plug insert 8 to be clamped to the second plug insert 10.

[0024] After the two plug-in inserts 8, 10 have been screwed into the support strut 2, the depth strut 4 and the width strut 3 can be mounted. For this purpose, these struts are pushed with their receptacles 7, 9 onto the associated plug-in inserts 8, 10. The plug-in movement of the width strut 3 or the depth strut 4 is limited by the front end of these struts, which abut against the side surface of the support strut 2. In this assembled state, holes, which are preferably designed as threaded holes 23, 27, are aligned with holes in the width strut 3 and the depth strut 4. These holes are in Fig. 3 is not visible. A bolt 21 is used to axially secure the width strut 3 to the socket insert 8. The bolt 21 is inserted into the bore of the width strut 3 and screwed into the aligned threaded bore 27 in the first socket insert 8. The bolt 21 is designed as a screw with a countersunk head 28 and a tool holder 29.

[0025] A second bolt 24 is provided for axially securing the depth strut 4 to the second plug insert 10. For this purpose, the threaded bore 23 is formed transversely to the longitudinal axis 14 of the second plug insert 10 at the end 22 of the second plug insert 10 assigned to the front-side receptacle 9 in the depth strut 4. The bolt 24 engages in the threaded bore 23. The bolt 24 is also equipped with a countersunk head 28 and a tool holder 29. The bolts 21, 24 can be arranged flush with the respective outer side 30 of the struts 3, 4. In contrast to the first plug insert 8, the second plug insert 10 is cylindrical with a diameter d that preferably remains constant over its length I. Both plug inserts 8, 10 can be made of solid metal material or, as described, on the one hand made of solid material and on the other hand as a screw 16' with a sleeve 19 slipped over it.

[0026] The first plug insert 8 has, at its end 25 opposite the end 18 having the positive diameter step 20, a negative diameter step 26, which can be formed by a screw head of the screw 16'. This facilitates the insertion of the plug insert 8 into the relevant recess. The threaded bore 27 is formed in the first plug insert 8 at a distance a from the negative diameter step 26. For mounting the shelving system 1 on a wall 34, a through-bore 32 is formed through each support strut 2 at a distance from the respective receiving-side end 31 of the support strut 2, transverse to the respective longitudinal axis 33 of the support strut 2. Dowels and / or screws can be passed through the through-bores 32.

[0027] How Fig. As shown in Figure 3, a spring 35 can be arranged on each of the width struts 3 for flush support of a shelf or the like. The springs 35 can also be arranged additionally or alternatively on the depth struts 4.

[0028] To assemble the shelving system, as described above, first the second plug-in insert 10 is inserted into the receptacle 9 of the depth brace 4. The second plug-in insert 10 is then fixed to the depth brace 4 with the aid of the threaded bolt 24. For this purpose, the threaded bolt 24 is passed through the associated screw receptacle of the depth brace 4 and screwed into the threaded hole 23. This, on the one hand, fixes the second plug-in insert 10 to the depth brace 4 and, on the other hand, the threaded hole 17 for the thread 16 of the screw 16' or of the first plug-in insert is aligned exactly at right angles to the central longitudinal axis of the depth brace 4. The depth brace 4 with the second plug-in insert 10 is then inserted through the receptacle 12 into the support brace 2. The insertion movement is limited by the front side of the depth brace 4 striking the associated outer side of the support brace 2.

[0029] The first socket insert 8 can now be screwed onto the second socket insert 10. The hexagon socket screw 16' is inserted into the sleeve 19 forming the first socket insert 8 until the screw head abuts one end of the sleeve 19. The thread of the hexagon socket screw 16' protrudes from the opposite end of the sleeve 19. The first socket insert 8 is now inserted through the receptacle 11 into the support strut 2. The hexagon socket screw 16' can be screwed into the threaded hole 17 using its thread. The first socket insert 8, with its reduced diameter end (positive diameter jump 20 - end of the sleeve 19), abuts the outer circumference of the second socket insert 10. The insertion of the first socket insert 8 into the support strut 2 is facilitated by the reduced diameter area of ​​the first socket insert 8. Finally, the width strut 3 with its front-side receptacle 7 is pushed onto the first plug-in insert 8.The insertion movement is limited by the end face of the width strut 3 abutting the corresponding outer surface of the support strut 2. In this state, the threaded hole 27 is aligned with the screw receptacle (not shown). The threaded bolt 21 can be passed through this screw receptacle and screwed into the threaded hole 27 of the first plug insert 8. In this way, the connection of the shelving system 1 is completed. The remaining seven corner connections of the shelving system 1 are made in the same way.

[0030] How Fig.4, the corner connectors described above can also be used to create links for wide shelving units. For this purpose, two first plug-in inserts 8 are connected using the second plug-in insert 10. The first plug-in inserts 8 are screwed opposite one another into the threaded hole 17 of the second plug-in insert 10 in the same way as described above, using the hexagon socket screw 16'. Accordingly, the two first plug-in inserts 8 then protrude from the support profile 2 on diametrically opposite sides. A width strut 3 can then be pushed onto each of the two plug-in inserts 8 and connected to the associated plug-in insert 8. The connection technology described above is used here.

Claims

[1] Shelving system (1) with a support strut (2), a width strut (3) and a depth strut (4), the width and depth struts (3, 4) being arranged at an angle to one another, and with a device (6) for connecting the struts (2, 3, 4) to one another, wherein the device (6) is formed at least from a first plug-in insert (8) insertable into a front-side receptacle (7) of the width strut (3) and a second plug-in insert (10) insertable into a front-side receptacle (9) of the depth strut (4) and wherein the plug-in inserts (8, 10) are inserted into a respective receptacle (11, 12) in the support strut (2) assigned to each plug-in insert (8, 10), and are detachably connected to one another with preferably at least approximately intersecting longitudinal axes (13, 14), wherein the width and depth struts (3, 4) with their respective end-face receptacles (7, 9) are pushed onto the plug-in inserts (8, 10) inserted into the support strut (2) and are axially secured thereto by means of bolts (21, 24), wherein the width and depth struts (3, 4) define a storage level (5) for shelves and the like, wherein flat front ends of the width and depth struts (3, 4) abut against side surfaces of the support strut (2), and wherein the first and second bolts (21, 24) are each formed as a screw (16') with a countersunk head (28) and a tool holder (29) and, in the assembled state, are flush with a respective outer side (30) of a width and depth strut (3, 4). [2] Shelving system (1) according to claim 1, characterized by , that the plug-in inserts (8, 10) in the support strut (2) are connected to one another by a screw connection (15) which is formed from at least one section of each plug-in insert (8, 10) carrying a thread (16). [3] Shelving system (1) according to one of claims 1 or 2, characterized by that the plug-in inserts (8, 10) are each formed from cylindrical solid material, and a. that one plug insert (8) has an external thread (16) at one axial end (18) which engages in a receptacle, in particular a threaded bore (17) of the other plug insert (10), or b. that at least one of the plug inserts (8, 10) has a sleeve (19) which receives a screw (16'), the thread (16) of the screw (16') engaging in the threaded bore (17) of the other plug insert (10). [4] Shelving system (1) according to claim 3, characterized by , that a positive diameter jump (20) in the manner of an edge or a negative diameter jump (26) in the manner of a groove is arranged on an axial section of the one plug insert (8, 10), and that the positive diameter jump (20) serves to engage a bolt (21, 24) guided into the receptacle (7, 9) of the width strut (3) or the depth strut (4) for axially securing the plug insert (8, 10) on the width strut (3) or the depth strut (4) or that, in particular when a plug-in insert (8, 10) is designed in the form of a screw (16') with a sleeve (19), the bolt (21, 24) engages in a bore made transversely in the plug-in insert (8, 10), in particular the screw (16') is screwed into the threaded bore (17) designed as a bore. [5] Shelving system (1) according to claim 3, characterized bythat the first plug insert (8) is formed as a screw (16') with a thread (16), onto which a sleeve (19) is pushed, or as a stepped cylinder-like bolt made of a solid metallic material, and that the second plug insert (10) is formed as a bolt made of solid metallic material with a diameter (d) that is preferably constant over its length (I). [6] Shelving system (1) according to claim 5, characterized by that the stepped cylinder-like, first plug insert (8) has, at its end (25) opposite the positive diameter jump (20), a negative diameter jump (26) in the manner of a diameter step, which is formed by a screw head of the screw (16'). [7] Shelving system (1) according to one of the preceding claims, characterized by that the supporting, width and depth struts (2, 3, 4) are formed from solid material at least in the axial region of the receptacles (7, 9) for the plug-in inserts (8, 10). [8] Shelving system (1) according to one of the preceding claims, characterized by that the supporting, width and depth struts (2, 3, 4) are formed from a metal profile with a square cross-section. [9] Shelving system (1) according to one of the preceding claims, characterized by that on each support strut (2) at a distance (b) from its respective receiving-side end (31) a through-bore (32) is provided transversely to the longitudinal axis (33) of the support strut (2). [10] Shelving system (1) according to one of the preceding claims, characterized by that at least one further receptacle for receiving a plug-in insert (8, 10) for at least one further width and / or depth strut (3, 4) is arranged on the support strut (2).

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