EP2586335A1 - Shelving rack, in particular high rise rack - Google Patents

Abstract

The shelf has two stayers (2) made of a metallic closed T-shaped hollow profile (5), and a cross beam (3) attached at the stayers by a screw connection (6). The screw connection comprises a screw and a screw nut (8). The T-shaped hollow profile comprises fastening openings (11, 12) for selective accommodation of the screw connection of the cross beam at a bar (9) and/or a flange (10). The screw connection passes the hollow profile. The stayers comprise a metallic corrosion protection layer (14). The hollow profile has profile wall strength of 2 mm to 5 mm. An independent claim is also included for a shelf storage comprising a shelf.

Description

The invention relates to a shelf, in particular high shelf, with uprights of a metallic closed hollow profile and with at least one attached via a screw on at least two uprights traverse, wherein the screw has at least one screw and a nut.

To form a high rack for pallets, it is known from the prior art to connect metal profiles to a frame with stanchions and trusses. For this purpose, consisting of a closed hollow profile uprights in their hollow chambers locknuts to fix the trusses about screws on the uprights can. These nuts can also be welded in the hollow section to fix their position. Although the production of a sturdy frame and thus a stable shelf can be made possible by means of such screw connections, it is disadvantageous that the introduction of parts of a screw connection, namely a nut, into a hollow profile is comparatively complicated and therefore associated with increased production costs because they also have to be welded on. Also, the introduction of a mother in the course of installation of the high-bay proves to be not effective, as this leads to a considerable installation effort, especially for uprights with comparatively long length. Furthermore, it has been found to be impractical to provide openings on the uprights or on the side wall of the hollow sections in order to be able to use the counter-nuts during assembly over these openings, since considerable weakening of torsional rigidity and torsional strength can result in these areas.

The invention is therefore based on the task to improve a shelf with a closed hollow profile in his uprights so that the assembly cost of the shelf can be kept low and also the manufacturing cost can be reduced.

The invention solves the problem set by the fact that the T-shaped hollow profile web and / or flange mounting holes for selectively receiving the hollow profile continuous screw of the traverse has.

If the hollow profile T-shaped, despite the use of a closed hollow profile can open up a simple way to provide between pillars and Traverse screw, having screws and nuts. In contrast to other hollow profiles, a T-shaped hollow profile can form a comparatively slender web and flange, as a result of which simple mounting options are possible even for screwed connections of short overall lengths and screw head and nut can also remain freely accessible. For this purpose, the hollow profile on web and / or flange mounting holes for selectively receiving the hollow profile continuous screw of the traverse have. As a result, in contrast to the prior art without constructive measures in the cavity of the hollow profile for a connection-safe connection of the traverse are provided to the hollow profile, because the screw can be made relatively short due to the formation of the hollow profile according to the invention. A comparatively inexpensive and easy to install shelf can be created. In addition, the shelf according to the invention can also be distinguished by the fact that no weakening of the stability on the hollow profile must be taken into account, for example because openings are provided for inserting connecting elements of the screw in the hollow profile. The comparatively high bending and torsional stiffnesses of the T-shaped hollow profile can thus be retained despite the use of a screw connection. Comparatively long stand - and thus for example Also, capacity-sized high shelves - which also easy to assemble and yet steadfast high load reserves against unwanted bending torsional buckling, can be created using the shelf according to the invention.

If at least one post welded from a roll-formed sheet-metal strip has an external V-weld, not only can a cost-effective post due to the use of a metal strip be provided, the post can also be subjected to a control, in particular weld inspection, with particular ease to check for possible structural weaknesses. A comparatively high level of production reliability for a stable shelf can thus be made possible.

The cohesive joining of the roll-formed sheet-metal strip can be distinguished by the use of a high-frequency welding method, whereby the upright and its V-weld seam formed by means of an HF welding process can have the same material. The sheet metal edges to be welded are specifically heated by the skin effect, whereby a small contact point at the beginning generates very high current densities, which can lead to rapid melting. When compressing the two straight ends in V-shape, the scale is pushed outward. Welding errors can be avoided, with a good verifiability of the cohesive connection. In addition, since the material ends are formed in several stages with relatively little application of force, an extremely form-retaining design of the stayer can be ensured, which can create a particularly mechanically strongest stayer.

In general, it is stated that the invention can be distinguished in particular by the fact that a T-shaped upright, the hollow profile of which is cohesively shot by means of an HF welding process, is used for a shelf, in particular a high-bay rack.

The stability of the shelf can be further increased by at least one post has a corrosion protection layer. In particular, a metallic corrosion protection layer can be particularly advantageous for shelving.

If the hollow profile has a dimension ratio of profile height to profile depth of 0.75 to 1 to 1, a particularly robust post can be created.

If the hollow profile has a profile wall thickness of 2 to 5 mm, it is possible to provide a comparatively high load-bearing yet low-material upright. The shelf according to the invention can thus be made relatively inexpensive.

A particularly stable connection between the parts of the shelf can be created when the voltage applied to both web or Flanschseitenflächen Traverse is connected via at least one the two Traversseiten spanning screw with the post. The stanchion partially comprehensive traverse can thus be particularly torsionally and flexibly connected to the uprights and yet mechanically detachable connected. A comparatively stable shelf can thus be created.

Simplified design conditions may arise if the traverse has at least one U-profile, in particular Kant U-profile, or is designed as a hat profile. In addition, this can result in an increased load capacity of the shelf.

Preferably, the traverse is formed by two U-profiles, each one U-profile rests against one of the two web side surfaces, so as to reduce the design effort to form the traverse and still allow a relatively high mechanical strength of the shelf can. In addition, as a traverse alternative to the two two U-profiles and a hat profile are distinguished, which has on its hat profile web a recess for the web of the post and rests with his hat profile legs each on a web side surface of the web.

If the shelf has a head and / or foot part with a receptacle for inserting the post, wherein the post inserted into the receptacle is connected at its web and flange via screw connection to the head or foot part, can provide a particularly firm connection of the post its footprint can be made possible to allow a stable shelf.

A comparatively stable stayer, in particular with regard to a possible bending torsional buckling in shelf loads, can be created in a structurally simple manner, when the axis of symmetry of the traverse is directed to the shear center of the hollow profile of the stanchion. Mechanical loads on the traverse can then be transferred to the stayer without additional torsional loads or be absorbed by this. The shelf can thereby experience a significantly increased rigidity, which also enables comparatively high shelves or rack loads reliable or can be recorded.

Advantageous construction conditions can be created if at least one upright of the shelf is connected to the floor and / or to the roof of the racking storage, because thus the shelf can take on self-supporting properties for a shelf storage. In addition, the uprights can also carry a wall and / or a roof of the shelf warehouse, so as to be able to form a building envelope, for example, in a structurally simple manner.

It may be advantageous if a high-frequency welded from a roll-formed sheet metal strip post with a T-shaped and closed hollow profile for a Shelf, especially high rack, is used. Increased mechanical strength of the shelf can be achieved.

Structurally simple, the uprights is attached via a screw to a crossmember, wherein the screw has at least one screw and a nut, wherein the hollow profile on web and / or flange mounting holes for selectively receiving the hollow profile continuous screw.

Fig. 1

eine perspektivische Seitenansicht auf ein Regal,

Fig. 2

eine abgerissene Schnittansicht auf das nach Fig. 1 dargestellte Regal nach einem ersten Ausführungsbeispiel,

Fig. 3

eine perspektivische Teilansicht auf einen am Boden montierten Steher des Regals nach Fig. 1 und

Fig. 4

ein zum Ausführungsbeispiel nach Fig. 2 alternatives Ausführungsbeispiel mit einer als Hutprofil ausgebildeten Traverse.

In the figures, for example, the subject invention is illustrated with reference to several embodiments. Show it

Fig. 1

a perspective side view of a shelf,

Fig. 2

a torn sectional view on the after Fig. 1 illustrated shelf according to a first embodiment,

Fig. 3

a partial perspective view of a floor-mounted stand of the shelf Fig. 1 and

Fig. 4

to the embodiment according to Fig. 2 alternative embodiment with a trapezoid designed as a hat profile.

That after Fig. 1 For example, illustrated shelf 1 has uprights 2 and fixed to the uprights trusses 3. The horizontally spaced trusses 3 limit together with the uprights 2 compartments 4, in which preferably pallets are introduced, which plates are not shown in detail in the figures. The dimensions of the compartments 4 are determined essentially by compartment height, compartment width and frame depth. For a high axial and polar moment of resistance of the uprights 2, these pillars 2 consist of a metallic and closed hollow section 5. At this hollow section 5, the trusses are now fastened via screw 6, which are formed by a screw 7 and a nut 8. In order to create advantageous construction conditions, the hollow profile 5 is T-shaped. As a result, at the web 9 and flange 10 mounting holes 11, 12 for selectively receiving the hollow profile 2 passing through screw 6 are provided because web 9 and flange 10 can represent relatively compact sizes for mounting purposes. The screw 6 can therefore be kept comparatively short, which both high mechanical strength, and easy handling - in particular with regard to assembly and / or disassembly of the shelf 1 of the invention - are made possible, for example, by reduced tilting of the screws 7 when passing through the hollow section 2. The cost of producing the shelf 1 can thereby be comparatively low.

How the particular Fig. 2 can be removed, the uprights 2 is made of a sheet metal strip by form-retaining, tension-free roll forming or by a cohesive outer V-weld 13 forming compound. For a quality control of cohesive connection is easily possible. In addition, an HF welding process is used, whereby pillar 2 and V-weld 13 have the same material and thus can particularly preserve the roll-formed shape of the pillar 2. The upright 2 therefore meets narrow dimensional tolerance limits.

Thus, the weld 13 of a review - even after a structure of the shelf 1 - are subjected to be able to detect premature failure on the shelf 1 can. This can also result in manufacturing advantages in terms of quality assurance of the shelf parts, which can subsequently lead to cost advantages. In addition, the Fig. 2 It can be seen that the upright 2 has a metallic corrosion protection layer 14-which is shown only schematically in the figure-whereby the stability of the shelf 1 is increased even further.

Tests showed that particularly advantageous construction properties could be achieved with a dimensional ratio of profile height to profile depth of 0.75 to 1 to 1 and a profile wall thickness of 2 to 5 mm - above all with regard to stability against undesired bending torsional buckling. Especially the following constructions of the stirrer could be distinguished with regard to production costs and resilience: Profile height / depth profile tread depth Profile wall thickness 75 mm 100 mm 2 mm to 4 mm 120 mm 140 mm 2.5 mm to 4 mm 140 mm 140 mm 2.5 mm to 5 mm

Like in the Fig. 2 can be further recognized, is the cross member 3 on both web side surfaces 21 at. The traverse 3 consists of two U-profiles 15, 16, which may optionally also be directly connected to each other, which has not been shown in detail. the traverse 3 is connected via a the two traverse sides 22 spanning screw 6 with the upright 2, whereby an increased connection stability is achieved.

The shelf 1 has a foot part 17 with a receptacle 18 for inserting the post 2, in order to be able to connect it, for example, to the bottom of a shelf storage so as to be non-displaceable Fig. 3 can be removed. A particularly stable construction composite is created by the stand 2 inserted into the receptacle 18 is connected to web 9 and flange 10 via screw 6 to the foot part 17. Likewise, the uprights can be used in a trained as well as the foot part 17 headboard to attach the uprights 2 and thus the shelf 1 to the roof of a shelf storage, which has not been shown in detail. The receptacle 18 is formed from a U-profile and a profile angle, as the Fig. 3 refer to.

Particular resistance to bending torsional buckling results by the symmetry axis 19 of the cross member 3 is directed to the shear center 20 of the hollow section 5 of the post 2, as in particular in Fig. 2 can be removed. This allows the shelf loads, for example due to stored pallets, be removed without an additional moment or with a comparatively low moment on the stayer 2.

To Fig. 4 becomes one for Fig. 2 alternative embodiment of the traverse 3 shown. Instead of two U-profiles, the traverse is formed by an open hat profile 23, which has a recess 24 on its hat profile web 25 for the web 9 of the post 2. Thus, at least the two hat profile legs 26 and 27 protrude the hat profile web 25 and can thus rest against the web side surfaces 21 of the web 2. The risk of mechanical weakening of the traverse 3 in the connection region to the upright 2 can thus be avoided by the two flanges 28, 29 of the hat profile 23 according to the invention.

Claims (15)

Shelf, in particular high-shelf, with uprights (2) of a metallic closed hollow profile (5) and with at least one via a screw (6) attached to at least two uprights Traverse (3), wherein the screw (6) at least one screw (7) and a nut (8), characterized in that the T-shaped hollow profile (5) of web (9) and / or flange (10) fixing apertures (11, 12) for selectively receiving the the hollow profile through (5) screw (6) the traverse (3). Shelf according to claim 1, characterized in that at least one welded from a roll-formed sheet metal strip post (2) has an outer V-weld seam (13). Shelf according to claim 2, characterized in that the upright (2) and its V-shaped weld seam (13) formed by means of an HF welding process have the same material. Shelf according to claim 1, 2 or 3, characterized in that at least one upright (2) has a corrosion protection layer (14), in particular a metallic corrosion protection layer (14). Shelf according to one of claims 1 to 4, characterized in that the hollow profile has a dimensional ratio of profile height to profile depth of 0.75 to 1 to 1. Shelf according to one of claims 1 to 5, characterized in that the hollow profile has a profile wall thickness of 2 to 5 mm. Shelving according to one of claims 1 to 6, characterized in that the on both web or flange side surfaces (21) adjacent cross member (3) via at least one of the two traverse sides (22) spanning screw (6) with the post (2) is connected , Shelf according to claim 7, characterized in that the traverse (3) has at least one U-profile (15, 16) or is designed as a hat profile (23). Shelf according to claim 8, characterized in that the cross member (3) by two U-profiles (15, 16) is formed, wherein each a U-profile (15 or 16) on one of the two web side surfaces (21). Shelving according to claim 8, characterized in that the hat profile (23) has on its top-hat rail (25) a recess (24) for the web (9) of the post (2) and with its hat profile legs (26, 27) each on a web side surface (21) of the post (2). Shelf according to one of claims 1 to 10, characterized in that the shelf (2) has a head and / or foot part (17) with a receptacle (18) for insertion of the post (2), wherein in the receptacle (18 ) used stand (2) at its web (9) and flange (10) via screw connection (6) with the head or foot part (17) is connected. Shelving according to one of claims 1 to 11, characterized in that the axis of symmetry (19) of the traverse (3) on the shear center (20) of the hollow profile (5) of the upright (2) is directed. Shelf storage with a shelf according to one of claims 1 to 12, characterized in that at least one upright (2) of the shelf (1) is connected to the floor and / or with the roof of the shelf storage. Use of a high-frequency welded from a roll-formed sheet metal strip post (2) with a T-shaped and closed hollow profile (5) for a shelf, in particular high bay. Use according to claim 14, characterized in that the upright (2) is fastened by a screw connection (6) to a traverse (3), wherein the screw connection (6) has at least one screw (7) and one screw nut (8) the hollow profile (5) on web (9) and / or flange (10) mounting holes (11, 12) for selectively receiving the hollow profile (5) continuous screw (6).

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