WO2004085274A1

WO2004085274A1 - Loading unit comprising a palleting tray

Info

Publication number: WO2004085274A1
Application number: PCT/EP2004/002106
Authority: WO
Inventors: Stefan Mattausch; Winfried Reichold
Original assignee: Ina-Schaeffler Kg
Priority date: 2003-03-28
Filing date: 2004-03-03
Publication date: 2004-10-07
Also published as: EP1608562B1; DE10314111B4; DE10314111A1; EP1608562A1

Abstract

The invention relates to a loading unit (11, 12, 13) encompassing a conveying pallet (14, 15, 16) and palleting trays (1) which are placed on the loading area thereof and the loading areas (5) of which receive a load (18). The palleting tray (1) is characterized in that the loading area (5) thereof is provided with a perforated surface, at least two continuous, spaced-apart, crossing free positions (2, 3) that are open in the direction of the load (18) being arranged on each face of the rectangular palleting tray (1), allowing grippers of handling equipment, which lift the load (18) from the conveying pallet (14, 15, 16) without the palleting tray (1), to be inserted into the open free positions (2, 3).

Description

Loading unit with palletizing shelf

Field of application of the invention

The invention relates to a loading unit, consisting of a transport pallet and palletizing shelves placed on the loading surface, the loading surfaces of which hold the cargo.

Background of the Invention

Pallets serve as a transport platform on which objects are put together to form a loading unit. They rationalize the handling of goods between different means of transport, for example when reloading cargo from a truck to a rail vehicle or a ship, with a similar effect as when transporting in a container. Such transport units enable the use of forklifts and are therefore very flexible. The objects stacked on the pallet can be general cargo in the form of containers, individual containers, cardboard boxes or other goods.

Such a loading unit is previously known from EP 0 183 600 B1. It consists of a main transport pallet on the loading areas of which two auxiliary pallets are placed, which in turn hold the general cargo to be transported with their loading areas. The cohesion of the secondary pallet and general cargo is created by a protective cover made of a heat-shrinking plastic material.

The disadvantage here is that the load can only be removed in connection with one of the secondary pallets. This can be particularly problematic when the load is placed on roller conveyors by automatic palletizing stations. Then it may be necessary that this Roller conveyors have to be adapted to these secondary pallets in a complex manner.

Summary of the invention

The invention is therefore based on the object of improving a loading unit so that removal of the load from the transport pallet is possible even without a palletizing shelf.

According to the invention this object is achieved according to the characterizing part of claim 1 in conjunction with its preamble in that the loading surface of the palletizing tray has an openwork surface, with at least two continuous, spaced-apart, intersecting, intersecting directions on each end face of the rectangular-shaped palletizing tray open exemptions of the cargo are arranged.

These exemptions serve as an opening for engaging a wide variety of handling means. If, for example, the two spaced-apart forks of a hand pallet truck are inserted into these exemptions, their top side reaches the underside of the piece goods to be transported. When the forks are lifted upwards, they move out of the open spaces towards the load and take the load with them, while the palletizing tray remains at its starting point. Due to the arrangement of the exemptions on both sides, the cargo can advantageously also be removed from two sides.

Advantageous developments of the invention are described in subclaims 2 to 8.

It is provided according to claim 2 that the loading surface of the palletizing tray is provided on all sides with a border. This ensures that slipping of the load and thus falling off the palletizing tray is prevented.

According to a further feature of the invention according to claim 3, the loading surface of the palletizing shelf should be designed like a lattice viewed from its underside, the longitudinal and transverse webs crossing at several points. This special design of the shelf ensures its stability while at the same time being lightweight.

According to claim 4 it is provided that the palletizing tray consists of a plastic and is produced by injection molding, wherein according to claim 5 this plastic should be polypropylene (PP). Polypropylene is particularly suitable as a material for the palletizing tray, since it can be processed very well by injection molding, has high impact strength, high rigidity and does not tend to form stress cracks.

According to a further feature of the invention according to claim 6, the size of the transport pallet and palletizing tray should be matched to one another in the loading unit, at least two trays being arranged on the transport pallet. This means nothing more than optimal, almost 100 percent utilization between the base of the transport pallet and the base of the palletizing trays.

Claims 7 and 8 describe the cohesion of the loading unit consisting of the transport pallet, palletizing tray and load. According to claim 7 it is provided that an end cover is arranged on the upper layer of the load and the transport pallet, palletizing tray, load and end cover are detachably connected to one another by a fastening means, wherein according to claim 8 the fastening means is designed as a strapping band.

The invention is explained in more detail using the following exemplary embodiments. Brief descriptions of the drawings

Show it:

FIG. 1 shows a perspective view of a palletizing tray according to the invention from above,

FIG. 2 shows a perspective view of the tray according to FIG. 1 from below,

FIGS. 3, 4 and 5 differently designed complete loading units,

FIG. 6 shows a perspective view of a modified palletizing shelf from above and

Figure 7 is a perspective view of the tray of Figure 6 from below.

Detailed descriptions of the drawings

The palletizing tray according to the invention shown in FIGS. 1 and 2 and designated by 1 is formed in one piece and made from polypropylene by injection molding. As can be seen in FIG. 1, the palletizing tray 1 is rectangular and has both long and short end faces with exemptions 2, 3 which are open towards the top of the load. These exemptions 2, 3 are continuous and therefore extend from a long end face to a long end face and from a short end face to a short end face, so that intersection points 4 result for the cutting exemptions 2, 3. The total loading area 5 available for the cargo is composed of two partial areas. Firstly, through the partial loading areas 5.1, 5.2, 5.3, 5.4, 5.5, 5.6, 5.7, 5.8 and 5.9 and on the other hand by the exemptions 2, 3 themselves. In other words, the total loading area 5 is not continuous in one level, but in the manner described by the exemptions 2, 3 interrupted. As FIG. 1 also shows, the entire loading area 5 is surrounded by a border 6, which is interrupted at eight different circumferential locations due to the exemptions 2, 3. As FIG. 1 also shows, the border 6 is provided with a conical widening in the area of the exemptions 2, 3. It can also be seen from the last-mentioned figure that the partial loading areas 5.1 to 5.9 spatially form the upper surface of a cuboid, the individual cuboids being connected via a divided base surface 7 which is formed by the exemptions 2, 3.

The underside of the tray 1 shown in FIG. 2 clearly shows its lattice structure, which, as already mentioned, is used to reduce weight and increase stability. The cuboids bounded upwards by the partial loading areas 5.1 to 5.9 are hollow when viewed from below due to the lattice structure. The lattice structure is formed by a multiplicity of longitudinal webs 8 which intersect with a multiplicity of transverse webs 9, so that a multiplicity of crossing points 10 are formed. The lattice structures, the number of which is to be equated with the number of partial loading areas 5.1 to 5.9, are connected to one another by the base area 7.

FIGS. 3, 4 and 5 show loading units 11, 12 and 13 which use different transport pallets 14, 15 and 16 in their expansion. The different dimensions of the transport pallets 14, 15 and 16 in width and depth are identified by the lower case letters a, b, c and d, where a>b>c> d. The figures mentioned are intended to clarify that the palletizing tray according to the invention can be adapted to any transport pallet size used. For example, the spatial dimensions of the transport pallets 14, 15, 16 with the values a = 1200 mm, b = 1000 mm, c = 800 mm, d = 600 mm and the expansion of the palletizing tray 1 with 600x400 mm, five palletizing trays 1 on the transport pallet 14, four on the transport pallet 15 and two on the transport pallet 16 can be accommodated on the lowest pallet level.

As the figures mentioned further show, the cohesion of the loading units 11, 12 and 13 is achieved in that a strapping band 17 of adjustable length is wrapped around the transport pallet 14, 15, 16 and the uppermost layer of the cargo 18. For the stabilization of the loading units 11, 12 and 13, additional end caps 19 are used, which are placed on the uppermost layer of the cargo 18.

For the sake of completeness, FIGS. 6 and 7 refer to the reversal of the palletizing tray 1 shown in FIGS. 1 and 2. In contrast, this modified palletizing shelf 20 has a flat surface 21 serving as a loading area, which in turn is enclosed by the border 6. This time, the two continuous, spaced-apart and intersecting exemptions 2, 3 are arranged on the underside of the tray 20, ie in the grid area, and are open in the direction of the transport pallet 14, 15, 16. In the manner already described, the lattice structure is in turn formed by a multiplicity of longitudinal webs 8 which intersect with transverse webs 9, so that a multiplicity of intersection points 10 is formed. When forks of a pallet truck are moved into the openings 2, 3 open in the direction of the transport pallet 14, 15, 16, the load 18 including the palletizing tray 20 is lifted off the latter. reference numeral

1 palletizing shelf

2 exemption

3 Exemption 4 Crossing point

5 total loading area

5.1 Part loading area

5.2 Part loading area

5.3 Part loading area 5.4 Part loading area

5.5 Part loading area

5.6 Part loading area

5.7 Part loading area

5.8 Part loading area J. w> partial loading area

6 border

7 base area

8 longitudinal victory

9 cross bar 10 crossing point

11 loading unit

^• 12 loading units

13 loading unit

14 Transport pallet 15 Transport pallet

16 transport pallet

17 strapping

18 loads

19 end cover 20 palletizing shelf

21 surface

Claims

claims

1. Loading unit (11, 12, 13), consisting of a transport pallet (14, 15, 16) and palletizing shelves (1) placed on the loading area, the loading areas (5) of which hold goods (18), characterized in that the Loading area (5) of the palletizing tray (1) has a perforated surface, at least two continuous, spaced, intersecting, open spaces (2,3) in the direction of the load (18) open on each end of the rectangular palletizing tray (1) are arranged.

2. Palletizing tray (1) according to claim 1, characterized in that the

Loading area (5) is provided on all sides with a border (6).

3. Palletizing tray (1) according to claim 1, characterized in that the loading surface (5) viewed from its underside is formed like a grid, the longitudinal (8) and transverse webs (9) crossing in several points (10).

4. Palletizing tray (1) according to claim 1, characterized in that it consists of a plastic and is produced by injection molding.

5. Palletizing tray (1) according to claim 1, characterized in that it consists of polypropylene.

6. loading unit (11, 12, 13) according to claim 1, characterized in that the size of the transport pallet (14, 15, 16) and palletizing tray (1) are coordinated with one another, with at least two palletizing trays (1 ) are arranged.

7. Loading unit according to claim 1, characterized in that an end cover (19) is arranged on the upper layer of the load (18) and transport pallet (14, 15, 16), palletizing tray (1), load (18) and End covers (19) are releasably connected to one another by a fastening means.

8. Loading unit according to claim 7, characterized in that the fastening means is a strapping (17).