DE202017103067U1 - Stacking device for pallets - Google Patents

Abstract

Pallet stacking device (10) for stacking a second pallet (1 ') on a first pallet (1), characterized in that the stacking device (10) comprises four U-shaped profiled corner posts (11), portions of the corner posts (11) in each case a corner region of the first pallet (1) on outer sides of the first pallet (1) can lie, wherein each two adjacent of the corner posts (11) via a side strut (14, 15) are interconnected, wherein each corner post (11 ) has a support element (13) which is supported in the respective corner region on an upper side of the pallet (1), and wherein a receptacle for a respective corner of the second pallet (1 ') is arranged at an upper region of each Eckpfostens (11).

Description

The invention relates to a stacking device for pallets in order to be able to stack a second pallet on a first pallet.

Pallets are used in freight transport for the transport and storage of goods of all kinds as disposable pallets or in exchange. In a frequently used variant, the pallets are made of wood with two or three in one direction parallel and resting on the ground straps on which transverse strips and cover boards are arranged. The deck boards provide a loading area onto which a storage item, e.g. Cartons, can be provided. As a rule, tapes or foils are used to secure the load.

The arrangement of the resting on the ground carrier allows underrun with the fork of a material handling vehicle, such as a lift truck or a forklift. In addition to the described construction of wooden beam pieces and strips versions of an embossed or molded plastic or plastic composite material in use. The so-called "Euro pallet" has established a standardized pallet size, but pallets of different sizes are regularly in use.

Pallets are versatile and inexpensive. In comparison to the much more expensive and complex lattice boxes, however, the lack of stackability is disadvantageous for loaded pallets.

Known are wooden attachment frames that provide side panels for the pallets so that smaller boxes etc. can be set without using straps or foil to secure these boxes. The side walls are not actually intended to stack a second pallet onto a first one equipped with such side walls. In practice, however, this is quite the practice. However, the patch second pallet is not fixed laterally, so that no horizontally acting forces can be forwarded to the lower first pallet. The stacking of pallets on the mounted side walls may therefore be suitable for storage purposes, but is unsuitable for transport purposes, since during transport during acceleration, braking and cornering such lateral forces occur and must be collected to secure the load against slipping or overturning. In addition, a given sidewall can be used for only one pallet size.

Another known way of stacking pallets is to provide bent sheet metal spacers available from the aftermarket. These are placed at the four corners on the first lower pallet, so that a second pallet can be placed on top of the spacers. This solution is only suitable for storage, but not for transport purposes. An advantage of this solution is that it can be used for different pallet sizes.

It is an object of the present invention to provide a stacking device for pallets that is universally suitable for various pallet sizes and with which a secure stacking not only for storage purposes, but also during transport with trucks or transport vehicles logistics is possible.

A stacking device according to the invention of the type mentioned above is characterized by four U-shaped profiled corner posts, wherein sections of the corner posts can rest in each case in a corner region of the first pallet on outer sides of the first pallet. In each case two of the adjacent corner posts are connected to one another via a preferably telescopic side strut. Each corner post also has a support element which is supported in the respective corner region on an upper side of the pallet. At the top of the corner post, a receptacle for each corner of the second pallet is arranged.

Characterized in that the corner posts surround the corners of the lower first pallet on the outside and adjacent corner posts are connected to each other via the side struts, a frame surrounding the pallet is formed, the side forces and tilting moments of the upper, second pallet on the lower, first pallet can transfer , The support members transfer the weight of the upper, second pallet to the lower, first pallet so that the entire pallet stack formed is lifted by lifting the first pallet by a stacker or pallet truck, and e.g. can be loaded. Equipped with telescopic side struts, the stacking device can also be used flexibly for pallets of different sizes.

In an advantageous embodiment of the stacking device, an upwardly extendable support is guided in or on each corner post, at the upper, free end of the receptacle for the second pallet is attached. The upwardly extendable support is preferably lockable in different positions. In this way, the stack height, i. the distance between the first and second pallets can be adjusted as needed. To lock a perforated strip may be provided, in which a bolt or screw is pushed through to set the support at a suitable height in the corner post.

The support member may be fixed, in particular, for example, by welding cohesively connected to the corner posts. In a further advantageous embodiment of the stacking device, the support element is height-adjustable relative to the corner post in order to be able to adapt the stacking device to pallets of different thickness by changing the position of the support element.

In a further advantageous embodiment of the stacking device, the height-adjustable support element is connected to the upwardly extendable support. In this way, weight forces of the upper second pallet or all other pallets stacked thereon are transmitted directly via the extendable support and the support element to the lower, first pallet. The corner posts themselves do not need to absorb the weight forces, but serve to guide the supports and the absorption of lateral forces. An inevitable friction between the corner posts and the columns and the corner posts and the first pallet prevents slipping of the corner posts when lifting the first pallet. The connection between support and support element can in turn be adjustable in each case, e.g. using a row of holes in the column to vary the stacking height.

Preferably, the telescopic side struts comprise two intermeshing and mutually displaceable sections (sections). These may e.g. be formed by rails with a u- or c-shaped and interlocking profile. It can turn rows of holes, possibly provided with slots to fix the telescopic side struts in appropriate lengths. Other locking or clamping means to fix the telescopic side struts in their length, can be used.

In a further advantageous embodiment of the stacking device at least one of the side struts is pivotally mounted at both ends via a respective pivot bearing about a horizontal axis to the associated corner post. In this way, the side strut can be folded away, in particular folded down, to see even with stacked pallet whose stored goods from the side and possibly also to remove or to be able to add stored goods.

More preferably, the side struts can be firmly connected to the side cheeks of the corner posts or designed to be removable. It is particularly advantageous if the side struts extending in one direction of the pallets are firmly connected to the two respective corner posts, whereas the lateral struts extending transversely thereto are detachably detachable, for example by means of a screwed or optionally secured hooking connection, so that these side struts can be removed , For transport purposes, the stacker can then be separated into two elongated units (two each connected via the fixed side strut corner posts) and two separate side struts. These can be transported flat on top of each other without taking up a large transport volume.

Alternatively or additionally, all or part of the side struts may be e.g. be attached by hinges to the corner posts, so that they are horizontally pivotable. An unused stacking device, which is not arranged around a pallet, can be folded flat by the hinges for transport purposes.

In a further advantageous embodiment of the stacking device, the corner posts and / or the supports and / or the side struts or the sections telescoping side struts are wholly or partly made of a metal sheet, in particular in a stamping and bending process.

• 1 eine erste Palette mit einer aufgesetzten Stapelvorrichtung in einer isometrischen Darstellung in einem ersten Ausführungsbeispiel;
• 2 eine isometrische Darstellung von zwei Einheiten aus Palette und Stapelvorrichtung gemäß 1, die aufeinander gestapelt sind;
• 3 die Stapelvorrichtung der 1, aufgesetzt auf einen anderen Typ Palette;
• 4 eine Palette mit einer aufgesetzten Stapelvorrichtung in einer isometrischen Darstellung in einem zweiten Ausführungsbeispiel; und
• 5 die Stapelvorrichtung der 4 mit einer heruntergeklappten Seitenstrebe.

The invention will be explained in more detail using an exemplary embodiment with reference to several figures. The figures show:

• 1 a first pallet with an attached stacking device in an isometric view in a first embodiment;
• 2 an isometric view of two units of pallet and stacking device according to 1 stacked on top of each other;
• 3 the stacking device of 1 put on another type pallet;
• 4 a pallet with an attached stacking device in an isometric view in a second embodiment; and
• 5 the stacking device of 4 with a folded down side strut.

1 shows in an isometric schematic representation of a pallet 1 with a first embodiment of an according to the application stacking device 10 ,

The pallet 1 , which is an example of a Euro pallet and is made in standardized dimensions of wooden blocks and wooden boards, has two outer support 2 and a center carrier 3 on. These are arranged so that in the longitudinal direction of the pallet 1 a fork of a lift truck or a forklift truck can be inserted to the pallet 1 lift and load.

balconnet 2 and the center carrier 3 are over cross bars 4 connected to each other on which turn, cover boards 5 are fixed, which is a cargo area of the pallet 1 form.

The stacking device 10 has four corner posts 11 on, which are preferably made of edged sheet metal material and in each case two substantially mutually perpendicular side cheeks 111 exhibit. The corner posts 11 lie with the side cheeks 111 outside on the pallet 1 specifically, in the area of corner blocks of the outer supports 2 ,

In each case adjacent corner posts 11 are about side struts 14 . 15 connected with each other. In the longitudinal direction of the pallet 1 are longer and also in their cross-section wider side struts 14 inserted and along the transverse side of the pallet 1 shorter and in their cross-section smaller side struts 15 ,

The side struts 14 . 15 are each advantageously telescopic, for example by two telescoping sections (sections) are used. The side struts 14 . 15 For example, they may be constructed of two U-shaped or C-shaped sections which are telescopically slidable.

The two individual sections, the side struts 14 . 15 form, can be fixed or detachable with the respective side cheek 111 of the corner post 11 be connected. A firm connection of the two individual sections of the side struts 14 . 15 on the side cheeks 111 the corner post 11 can be given by a riveting or welding. A releasable connection can be given by a screw or plugging or the like.

In a preferred embodiment, the longitudinal side struts 14 are fixed to the side wall 111 of the respective corner post 11 whereas the shorter and less solid transverse side struts 15 detachable with the respective corner posts 11 are connected. In this way, the stacking device 10 when not in use it is disassembled and takes up little transport volume.

It is also conceivable, in each case at least one of the two adjacent to a corner post 11 sections of the side struts 14 . 15 by means of a hinge on the corner post 11 to fix. The stacking device 10 can then also be folded flat when not needed.

The telescopic side struts 14 . 15 are preferred with latching or fixing agents (see Fixing agent 141 . 151 in the embodiment of the 4 and 5 ) in order to maintain a set length positively or positively. For example, rows of holes can be provided in connection with inserted screws or bolts or locking means for this purpose.

The receptacles 121 at the free end of the supports 12 arranged, preferably welded, have a bottom and two preferably slightly obliquely outwardly flared side walls.

On the receiving trays 121 can be a second palette 1' be hung up, or even a unit from a second pallet 1' and another stacking device 10 , Such an arrangement is in 2 shown.

The inclination of the side walls of the receiving trays 121 facilitates the placement of the upper second pallet 1' or the unit from the second pallet 1' and the other stacking device 10 , wherein at the same time a lateral slippage of the second pallet 1' is prevented.

The pillars 12 have a triangular profile and are in the corner posts 11 height adjustable guided. To guide are at the in 1 example shown paragraphs in the side cheeks 111 formed, preferably punched, so that the supports 12 in the angular range of the corner posts 11 are guided and the sidewalls 111 in its outer area on the pallet 1 issue.

Every prop 12 is with a support element 13 coupled on the top of the pallet 1 rests. The support element 13 is formed in the example shown as a foot on the pallet 1 seated. In this way, weight forces of the upper second pallet or of all other pallets stacked thereon are transferred directly via the extendable support 12 and the support element 13 on the lower, first pallet 1 transfer. The corner posts 11 even the weight forces do not need to absorb, but serve to guide the supports 12 and the absorption of lateral forces.

In the prop 12 is a row of holes 122 formed with vertically spaced holes into which the support element 13 intervenes. In this way is the connection between the support 12 and the support element 13 adjustable, so that can be adjusted, how far the supports 12 from the corner post 11 protrude. It can thus stack height, so the distance between two stacked pallets 1 and 1' to be varied as needed.

In an alternative embodiment of the stacking device, both the support, as well as the support element on the corner posts, if necessary, each height adjustable, be attached.

In a further alternative embodiment of the stacking device, the corner posts 11 at a lower end 112 closed with, for example, triangular shaped bottom plates. So will the pallet 1 in the corner not only outside, but also from above and below embraced, causing the stacking device 10 even safer connected with the pallet.

3 shows the stacking device 10 according to 1 together with a pallet 1 of different dimensions than the pallet 1 of the 1 , The same reference numerals in this figure denote the same or equivalent elements as in FIG 1 ,

In the 3 illustrated palette 1 has a different ratio of the length of lateral and longitudinal side than in 1 shown. In the example of 2 the lateral side being looked at is longer than the long side. For example, the palette 1 of the 3 a so-called "half euro pallet", which is also used in the industry. By adjusting the lengths of the telescopic side struts 14 respectively. 15 can the stacking device 10 also be adapted to this pallet size.

4 shows a second embodiment of an according to the application stacking device 10 in a second embodiment. The stacking device is again on a (Euro) pallet 10 placed. The same reference numerals in this as the following figure identify the same or equivalent elements as in the first embodiment.

In its basic structure corresponds to the stacking device 10 that described in the previous figures. The accompanying description is hereby incorporated by reference.

In contrast to the first embodiment, in the present case, the corner posts 11 are slightly offset inwards. They are not lying with their side cheeks 111 directly outside at the corners of the pallet 1 on, but have only at its lower end on the side cheeks 111 attached tabs 113 on, the sides of the corners of the pallet 1 issue. The tabs 113 fix the stacking device 10 with respect to its lateral position. They are not necessarily enough for this purpose to the bottom of the range 1 ,

By so cranked construction of the corner posts 11 protrudes the stacking device 10 to the sides only slightly - namely with the material thickness of the tabs 113 of a few millimeters and the edge of the receiving trays 112 over the pallet 1 out, reducing the range 1 with the stacking device 10 or also several stacked pallets 1 occupy almost the same footprint as a pallet 1 without stacking device 10 ,

In the example of 4 are with the reference numerals 141 and 151 the previously mentioned fixing means for determining the length of the side struts 14 respectively. 15 shown.

Furthermore, in this embodiment, the longitudinal and transverse side struts 14 . 15 with hinges 142 respectively. 152 at the corner posts 11 anmontiert. This allows the stacking device 10 be folded flat when not needed and transported to save space.

Another difference to the first embodiment is that at least one of the side struts 14 . 15 , in this case by way of example, the side strut extending in the figure on the longitudinal side 14 Foldable down to even stacked pallets 1 to get to their storage or transport goods. For this purpose, the side strut 14 pivotable at its lower edge about a horizontal axis to the corner posts 11 in each case a pivot bearing 143 stored. The pivot bearings 143 For example, have a pin with a thickening at the free end to be loaded on train. In the area of the upper edge there is a bar on each side 144 provided to the side strut 14 set in the illustrated closed position.

As in 5 can be shown after unlocking the latch 144 the side brace 14 be folded down. Storage goods can be viewed and possibly to the side of the pallet 1 be taken.

LIST OF REFERENCE NUMBERS

1

first pallet

1'

second palette

2

balconnet

3

center support

4

strip

5

deck board

10

stacker

11

corner posts

111

side cheek

112

lower end of the corner post

113

flap

12

support

121

receiving dish

122

row of holes

13

supporting

14

Side strut (longitudinal)

141

fixer

142

hinge

143

pivot bearing

144

bars

15

Side strut (transverse)

151

fixer

152

hinge

Claims (13)

Pallet stacking device (10) for stacking a second pallet (1 ') on a first pallet (1), characterized in that the stacking device (10) comprises four U-shaped profiled corner posts (11), portions of the corner posts (11) in each case a corner region of the first pallet (1) on outer sides of the first pallet (1) can lie, wherein each two adjacent of the corner posts (11) via a side strut (14, 15) are interconnected, wherein each corner post (11 ) has a supporting element (13) which is supported in the respective corner region on an upper side of the pallet (1), and wherein a receptacle for a respective corner of the second pallet (1 ') is arranged on an upper region of each Eckpfostens (11). Stacking device (10) after Claim 1 in which at least two opposite side struts (14, 15) are telescopic. Stacking device (10) after Claim 2 , in which the telescopic side struts (14, 15) have two u- or c-shaped profiled sections, which engage each other displaceable. Stacking device (10) according to one of Claims 1 to 3 in which at least two of the side struts (14, 15) are detachably connected to the corner posts (11). Stacking device (10) according to one of Claims 1 to 4 in which at least two of the side struts (14, 15) are pivotally connected to the corner posts (11). Stacking device (10) according to one of Claims 1 to 5 in which in each corner post (11) an upwardly extendable support (12) is guided, at the upper, free end of the receptacle for the second pallet (1 ') is mounted Stacking device (10) according to one of Claims 1 to 6 in which the respective support element (13) is arranged height-adjustable on the corner post (11). Stacking device (10) after Claim 6 and 7 in which the respective support element (13) is connected to the respective support (12). Stacking device (10) after Claim 8 in which the respective support element (13) is adjustably connected to the respective support (12). Stacking device (10) according to one of Claims 1 to 9 in that the receptacle for the corners of the second pallet (1 ') is a receiving tray (121). Stacking device (10) according to one of Claims 1 to 10 in that at least one of the side struts (14, 15) is pivotably mounted on the associated corner post (11) at both ends via a respective pivot bearing (143) about a horizontal axis. Stacking device (10) according to one of Claims 1 to 11 in which the side struts (14, 15) are mounted on the corner posts (11) so as to be pivotable about hinges (143) about a vertical axis. Stacking device (10) according to one of Claims 1 to 12 in which the corner posts (11) and / or the supports (12) and / or the side struts (14, 15) are wholly or partly made of a metal sheet.

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