DE202017102673U1 - Shelf with reinforced sub-carrier - Google Patents

Abstract

Shelf (10, 20) with a sub-carrier (30) to increase the load capacity of the shelf (10, 20), characterized in that a portion (33) of the sub-carrier (30) is additionally reinforced.

Description

Modular metal shelves are particularly suitable as heavy-duty racks in warehousing technology, but also for stocking and presenting goods in shopping centers. In addition to the flexibly modular construction, the shelves should have the highest possible load capacity and stability with the lowest possible cost of materials.

DE 100 46 947 A1 shows a generic metal shelf, which is composed of vertical columns and horizontal trusses on which shelves are placed for storage of goods. Particularly exposed areas exposed areas of the columns or trusses can be additionally stiffened by an inserted inside the pillar or traverse hollow profile reinforcement plate. However, the document does not take into account that a reinforcement or stiffening of the shelf itself could be beneficial.

WO 2014/198476 A1 shows a generic shelf shelf, which is stiffened to increase its capacity by bottom welded to the shelf U-profiles against bending in the transverse direction. The U-shaped sub-carriers are foamed with polyurethane on the inside to further increase the rigidity. However, the production of such subcarriers with polyurethane foam has proven to be relatively expensive because of the different manufacturing materials. Furthermore, it would be desirable to use the material for stiffening the subcarrier even more efficient.

The object of the present invention is to overcome the above-mentioned disadvantages of the prior art and to provide a shelf shelf whose capacity is increased by the most efficient use of stiffening elements. The solution of the problem is achieved by the shelf shelf specified in claim 1. The subclaims relate to preferred embodiments of the shelf and a shelf with such a shelf.

According to the invention, not the entire sub-carrier, but only those sub-areas thereof, which are exposed to a special load, additionally reinforced. As a result, an additional increase in the load capacity of the shelf against horizontal deflection can be achieved with minimal use of material.

The most stressed portion of the subcarrier may preferably be reinforced by an insert plate secured to the subcarrier by, for example, welding, gluing or clinching. However, the one-piece subcarrier may have already integrated the reinforcement. For example, by having a higher material thickness and / or a harder material at its most heavily loaded portion. In all cases, the reinforcing element can already be attached to the sub-carrier before it is attached to the shelf. This allows an uncomplicated production of the shelf, because the complete sub-carrier can already be pre-assembled.

In a preferred embodiment of the invention, the sub-carrier has the shape of a U-profile, and the reinforced portion of the sub-carrier is parallel to the shelf support surface extending bottom wall of the U-profile. A U-profile has the manufacturing advantage that it can be made by a few Abkant-processes from a single piece of sheet steel. An insert sheet can already be fixed to the portion of the steel sheet prior to folding, which later forms the lowest bottom wall of the sub-carrier.

The problem of sagging a shelf shelf usually occurs in the transverse direction, that is, the shelf bends vertically under heavy load bearing down through, in the middle between its resting on each console or trusses left and right side ends. Therefore, the subcarriers preferably extend in this (transversely to the depth direction of the shelf extending) transverse direction and in a plane which is parallel to the support surface of the shelf. This is the most effective way to limit the deflection of the shelf.

• 1 eine Querschnittsansicht eines vorderen Endbereichs eines Regal-Fachbodens gemäß einem Ausführungsbeispiel der Erfindung, und
• 2 eine Querschnittsansicht eines vorderen Endbereichs eines Regal-Fachbodens gemäß einer Variante des Ausführungsbeispiel der 1.

Hereinafter, embodiments of the invention will be explained with reference to the drawings. It shows:

• 1 a cross-sectional view of a front end portion of a shelf shelf according to an embodiment of the invention, and
• 2 a cross-sectional view of a front end portion of a shelf shelf according to a variant of the embodiment of 1 ,

Like reference numerals designate like elements throughout the figures. The terms "top", "bottom", "front", "rear", "left" and "right" refer to the consideration of the intended use of the shelf. The viewer is in front of the shelf, for example, the customer in front of a store shelf, and looks "front" on the front edge of the shelf shelf, lie on the goods for presentation. The shelf shelf rests on trusses or consoles, which are "behind", so hung on the side facing away from the viewer of the shelf in shelf columns.

The 1 shows the front end of a shelf 10 in a cross section from the left side. The shelf 10 has a welded or otherwise attached U-shaped sub-carrier 30 , The subcarrier 30 is with its two horizontally extending front and rear end sections 31 flat at the bottom of the shelf 10 attached to the most durable and stable connection between shelf 10 and subcarriers 30 to ensure.

Between the two end sections 31 runs the subcarrier 30 over two obliquely downwardly extending intermediate sections 32 to the substantially horizontal middle section 33 which forms the bottom wall of the subcarrier 30. The intermediate sections 32 and the middle section 33 form in cross-section a substantially trapezoidal geometry, as good as possible force on the bottom wall or the central portion 33 to ensure.

The middle section 33 points to his shelf 10 facing side a reinforcing plate 40 by welding, gluing or clinching with the subcarrier 30 connected is. The reinforcement plate 40 preferably extends over the entire (in the transverse direction) width of the subcarrier 30 , but can also be provided only in subsections of it.

At the front edge, so the viewer facing side, has the shelf 10 a transverse groove 11 on, for example, a price or Auszeichnungsschiene (not shown) for the on the shelf 10 fastened goods.

Apart from the front edge is the shelf 20 of the 2 identical to the 1 , Instead of the groove 11 indicates the shelf 20 but a bead-shaped tube 21 on, which is modeled in its dimensions to the front cross-sectional profile of a grid shelf, and in addition stiffen the shelf 20 against bending on the optically for the customer particularly noticeable shelf front.

The shelf 10 . 20 , the subcarrier 30 and the reinforcing sheet 40 are each preferably made of a piece of sheet metal. In a typical embodiment, the thickness of the shelf plate is between 0.5 and 0.9 mm, the sheet thickness of the support profile 0.5 to 0.8 mm and the thickness of the reinforcing sheet 1 to 2 mm. A simulation method based on finite element static calculations has shown that a shelf 10, 20 with three sub-carriers 30 without reinforcing plates at a given load has a deflection of about 4.6 mm from the unloaded state. Become the three subcarriers 30 additionally with one reinforcing plate each 40 of 1.5 mm according to the inventive design of 1 or 2 reinforced, the deflection is reduced to 1.6 mm under the same load (measured in the center of the shelf).

In summary, the present invention relates to a shelf 10 , 20 with one to increase the load capacity of the shelf 10 . 20 transverse subcarrier 30 , which is additionally reinforced in a particularly stressed partial area. The reinforcement succeeds by inserting a reinforcing plate 40 at the parallel to the support surface of the shelf 10 . 20 extending bottom wall 33 of the subcarrier 30 or by a corresponding increase in the material thickness of the subcarrier 30 in this subarea.

LIST OF REFERENCE NUMBERS

10

Fold bottom

11

groove

20

Fold bottom

21

bead-shaped tube

30

Subcarrier / reinforcement profile

31

end

32

between sections

33

Middle section / bottom wall

40

Insert sheet / reinforcing sheet

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 10046947 A1 [0002]
• WO 2014/198476 A1 [0003]

Claims (9)

Shelf (10, 20) with a sub-carrier (30) to increase the load capacity of the shelf (10, 20), characterized in that a portion (33) of the sub-carrier (30) is additionally reinforced. Shelf (10; 20) after Claim 1 , wherein the reinforcement of the sub-carrier portion (33) by an additional insert plate (40) is achieved. Shelf (10; 20) after Claim 2 , wherein the insert plate (40) by welding, gluing or clinching on a the shelf (10; 20) facing side of the sub-carrier (30) is fixed. Shelf (10; 20) after Claim 1 , wherein the reinforcement of the sub-carrier portion (33) is achieved by a relation to the unreinforced areas increased material thickness. A shelf (10; 20) according to any one of the preceding claims, wherein the sub-carrier (30) is a U-profile fixed to the underside of the shelf (10; 20). Shelf (10; 20) after Claim 5 , wherein the reinforced portion (33) of the sub-carrier (30) is parallel to the shelf support surface extending bottom wall of the U-profile. Shelf (10; 20) according to one of the preceding claims, wherein the longitudinal direction of the sub-carrier (30) in the plane parallel to the support surface of the shelf (10; 20) extending plane and transverse to the depth direction of the shelf (10; 20). Shelf with a shelf (10; 20) according to one of the preceding claims. Shelf after Claim 8 with vertically oriented columns and consoles or cross-beams suspended in recesses of the columns, against which the shelf (10; 20) rests or is fixed.

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