DE29510064U1 - Transport and storage containers for liquids - Google Patents

Description

95 343 Pü/Bi

Schütz-Werke GmbH & Co*- :&kgr;<3 . &idigr;&Idigr; !**.

Description Title: Transport and storage containers for liquids

The invention relates to transport and storage containers for liquids, with an inner container made of plastic, each with a closable filling and outlet opening, a grid jacket made of intersecting horizontal and vertical metal grid bars, which adjoins the inner container and protrudes above the upper base of the same, and a lower and an upper frame made of metal for fastening the lower and upper ends of the vertical grid bars, a removable, recessed lid with a grid structure, which has parallel cross bars screwed to the upper frame of the grid jacket or the upper ends of the vertical grid bars, which adjoin the upper base of the inner container, and with a transport pallet made of metal, plastic or wood, which is designed for handling by means of a forklift truck, storage and retrieval machine or the like (DE 41 17 159 C2).

The mesh casing and inner container of these well-known transport and storage containers are exposed to different dynamic loads during transport, depending on the external conditions, due to surge vibrations from the liquid being transported and driving vibrations and impacts transmitted by the transport vehicle. When the containers are filled with hot liquids up to 70° C, the plastic of the inner container becomes soft, so that there is a risk that the upper base of the container in particular will bulge and be damaged. The risk of bulging also exists when gas is formed by evaporating liquid in the container and when the air in the container expands under the influence of higher external temperatures. If the containers are transported stacked, the mesh casings are subject to additional static stacking loads. Both during storage and during transport, the inner container and the

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The hydrostatic pressure of the liquid column is measured in the grid jacket. Finally, the test conditions require that the containers must withstand an internal overpressure of 1 bar.

The invention is based on the object of improving the stability of the generic transport and storage container with a view to increasing transport safety.

This object is achieved according to the invention by a transport and storage container with the features of claim 1.

The transport and storage container according to the invention is characterized by the following advantages:

The lid with the two crossbars, to which the upper base of the plastic inner container is attached by means of eyelets, stiffens the upper base of the inner container in such a way that bulging of the base and creeping of the plastic, which can cause the inner container to tear open, are avoided when the plastic softens due to hot liquid poured into the inner container and when the internal pressure increases due to the liquid forming gas at high outside temperatures and when the inner container is subjected to the prescribed test pressure. The support of the plastic inner container by an external grid-like covering enables the wall thickness of the inner container to be reduced and thus the transport weight to be reduced and material costs to be saved. Finally, the high rigidity of the upper frame of the grid casing, which is brought about by the grid-like lid, ensures that the container is optimally stackable.

The invention is explained below with reference to drawings. It shows

Fig. 1 is a perspective view of a transport and storage container and

Fig. 2 the fastening of the upper base of the plastic inner container to the cross bars of the lid of the transport and storage container.

The transport and storage container 1 for liquids according to Fig. 1, used as a disposable and reusable container, has as main components an exchangeable inner container 2 made of polyethylene in the form of a cuboid with rounded corner edges, which is equipped with a filler neck 3 that can be closed with a screw cap 4 and an outlet neck 5 with a tap 6, an outer casing designed as a grid casing 7 made of intersecting vertical and horizontal grid bars 8, 9 and an upper 10 and a lower frame 11 made of metal, as well as a pallet 12 with a base pan 13 made of sheet metal, which is attached to a pallet frame 14 made of metal.

The bottom 15 of the inner container 2 is designed as a drainage bottom with a central, flat drainage channel (not shown) that runs with a slight gradient from the rear wall of the container to the outlet nozzle 5 with the tap 6 arranged on the front wall of the container. The bottom pan 13 is adapted to the drainage bottom 15 of the inner container 2.

The upper base 16 of the inner container 2 has a central section 17 with the filler neck 3 and two raised outer sections 18, 19 which, when the container 2 is filled up to 95% with a liquid, form cavities 20, 21 in which gas evaporating from the liquid can collect at elevated outside temperatures.

The transport and storage container 1 is provided with a removable, recessed grid-like lid 2 2 with two

Cross bars 23, 24 made of metal tubes. The cross bars 23, 24 rest on the middle section 17 of the upper base 16 of the inner container 2 and are each passed through an eyelet 25, 26, one of which is formed on the shoulder 27 between the middle section 17 and the one outer section 18 of the upper base 16 of the inner container 2 and the other 26 on the shoulder 28 between the middle section 17 and the other outer section 19 of the upper base 16.

The two cross bars 23, 24 are screwed at their ends to the upper frame 10 of the grid casing 7.

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Reference symbols

1 transport and storage container

2 inner containers

3 filling nozzles from

4 screw caps for

5 outlet nozzles from

6 Tap in 5

7 Grid jacket

8 vertical lattice bar of

9 horizontal grid bar of

10 upper frame of

11 lower frame of

12 pallets

13 floor pan of 12

14 pallet frames

15 Floor of 2

16 upper floor of

17 Middle section of

18 outer section of

19 outer section of

20 Cavity under 18

21 Cavity under 19

22 lattice-like lid

23 Crossbar of 22

24 crossbar of 22

25 eyelet on 27

26 eyelet on 28

27 Paragraph between 17 and

28 Paragraph between 17 and

Claims (2)

95 343 Pü/Bi .... ,. ». ,, »» ...» Schütz-Werke GmbH & Cd\. IkcS . &Idigr;;;**;**-··; Protection claims 1. Transport and storage container for liquids, with an inner container made of plastic, each with a closable filling and outlet opening, a grid casing made of intersecting horizontal and vertical metal grid bars that protrudes above the upper base of the inner container, and a lower and an upper frame made of metal for fastening the lower and upper ends of the vertical grid bars, a removable, recessed lid with a grid structure that has parallel cross bars that are screwed to the upper frame of the grid casing or the upper ends of the vertical grid bars and that lie against the upper base of the inner container, and with a transport pallet made of metal, plastic or wood that is designed for handling by means of a forklift truck, storage and retrieval machine or the like, characterized by fastening eyes (25, 26) formed on the upper base (16) of the inner container (2) for inserting the cross bars (23, 24) of the removable lid (22) of the grid casing through (7). 2. Transport and storage container according to claim 1, characterized in that the fastening eyelets (25, 26) are each formed on the shoulder (27) between the middle section (17) and the one outer, higher section (18) of the upper base (16) of the plastic inner container (2) and the other eyelet (26) on the shoulder (28) between the middle section (17) and the other outer section (19) of the upper base (16).