FI60844C - PALETTBEHAOLLARE FOER ENGAONGSBRUK - Google Patents

Description

-J-IW-, 1 r.1 ANNOUNCEMENT s f | o A A

J0A [BI <11> utlAgcningjskmft OU844 *** && C (45) Patent granted on 13 April 1982

Patent Meddelat ^ T 'V (51) Kv.lk.3 / lnt.CI.3 B 65 D 77/06 SUOMI —- FINLAND (21) P »t» nulh »k * mu * - Pattnttntdknlnc 802217 (22) Hakvmltpttvt - An * dknln | idaf 11.07-80 '' (23) Alkuptlvl — GHtlgh «t * da | 11.07.80 (41) Tullut lulkMul - Bltvlt oftottllg Patent · ja registrihallitut ....,, «BÄSSiX; a · 12 · 81 (32) (33) (31) Pyydttty Kuolkw · —8 «glrd prtoritct (71) Unicont Ky, Saunaniementie 20, 02780 Espoo 78, Finland-Finland (FI) (72) Trygve Rosenqvist, Hammaslahti, Heikki The present invention relates to a disposable corrugated container made of corrugated cardboard for the bulk transport of liquids and bulk goods. The container has a detachable inner container made of plastic or rubber with a closable filling and bottom emptying opening.

Liquid containers of this type are tanks made of hard plastic with a metal construction or surrounded by a metal cladding, which, due to their high cost, are not suitable for single-use transport.

It is an object of the present invention to provide a full stackable economical disposable bulk container.

According to the invention, this is achieved in that the support frame of the tank container consists of a specially constructed collapsible corrugated cardboard box reinforced with wood, polyurethane or a similar filling, which is placed on a disposable pallet for transport. For liquids and bulk, the 2,60844 tank container is equipped with a disposable collapsible plastic tank with a filling and emptying hose.

As tank containers can be made in several different sizes, eg with a capacity of 500, 1000, 1500 liters, the support frame of the tank must be strong enough to prevent bulging and to allow stacking. Without the solution according to the invention, corrugated board cannot be used for this purpose.

The invention is characterized by an inner collar placed in a corrugated cardboard box, which is supported on each side by a support structure made of wood or e.g. hard polyurethane. The purpose of the support structure is to move most of the edges of the liquid bag package from the protruding effect through the inner collar to the corners of the container. Due to this structure, the edges of the container do not bulge and the container retains its shape. The stackability of full containers is achieved by means of the invention with the same wooden, polyurethane or similar support structure which retains its inner collar shape.

Another feature of the invention is that the drain hose of the liquid bag is attached to the lower part of the liquid bag, for example by polyethylene, by heat sealing. During filling and transport, the drain hose is folded. When emptying the liquid container, open the door in the corrugated box and pull out the emptying hose in the pile. Draining is done by cutting the end of the hose open. Drainage can be interrupted by raising the end of the hose above the liquid level of the container. If necessary, a shut-off valve or a hose connector can be attached to the drain hose.

The invention will now be described, by way of example, with reference to the accompanying drawings, in which Figure 1 shows a container container according to the invention in good condition and a bottom emptying solution for use in a liquid transport version of a container. IV-IV, 3 60844 Fig. 5 shows the container container with its support structures folded, Fig. 6 shows the inner container used in the liquid transport version of the container container empty, and Fig. 7 shows the inner container according to Fig. 6 filled.

Figures 1 and 2 show a tank container on a pallet in a liquid transport version. The tank is emptied by opening the door 2 in the corrugated container 1 and pulling out the emptying hose 3 folded behind the door. The hose is raised above the liquid surface in the tank and the closed end 4 of the hose 3 in Fig. 7 is cut off.

The prevention of bulging of the container container and the stackability of full containers on top of each other are achieved by means of the special structure shown in Figures 3 and 4. The inner collar 5 made of corrugated cardboard in the corrugated cardboard box 1 is supported in its shape by a support structure 6. In the version shown, the support structure is made of wood. Alternatively, the space between the corrugated cardboard box 1 and the inner collar 5 can be filled with hard polyurethane or the like. In addition to the above-mentioned structural properties, the thermal insulation of the container is achieved when using polyurethane.

In the liquid transport version, a collapsible container 7 made of polyethylene-plastic by heat sealing according to Figures 6 and 7 is used. The container is placed in an opened corrugated container. For bottom emptying, the container is provided with a polyethylene plastic drain hose 3, the end of which is closed by heat sealing 4. During filling and transport, the drain hose 3 is folded as shown in Fig. 6 and secured with tape 8.

For filling, the tank has a filling opening with a screw cap 9. Alternatively, the container can be provided with a filling hose made of polyethylene heat-sealed, which is closed by heat-sealing or closing.

During transport and storage, the corrugated cardboard container with its supporting structures is kept folded, which is generally indicated by reference numeral 10, as shown in Fig. 5.

Due to the support structure of the corrugated container, the inner tank for bulk transport of liquids can be made of, for example, thin LO polyethylene