CS195241B1 - Transport wrapping damping the impacts - Google Patents

Description

(54) Shock-absorbing transport packaging

2

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shock absorbing shipping container by means of resilient fixation elements surrounding products that is used to package and transport shock and shock-sensitive products.

Shock and vibration sensitive products are predominantly packaged in shipping containers with internal fixation using foam plastics, wood or paper wool, rubber, and similar cushioning and fixing materials. Their common disadvantage is the high demands on the storage space of the packaging material, a considerable amount of difficult-to-dispose and often unhygienic waste after unpacking, limited fixation and damping properties and often poor shape adaptability to the packaged article.

Furthermore, various types of constant pressure plastic cushioning and fixing cushions are known which are inserted between the inner walls of the shipping containers and the goods being transported. They are often shaped according to the object being transported.

The molded parts are not multipurpose, they are not variable, and all of them are again subject to great demands on storage space, because air cannot be drained from these cushions. It is also not possible to change the air pressure.

If ae uses inflatable cushions, some of these disadvantages will be eliminated, but once the shipping container is closed, it is not possible to change the air pressure again.

These drawbacks are eliminated by the shock absorbing transport packaging by means of flexible fixing elements surrounding the shock-sensitive products,. characterized in that it comprises at least one air chamber comprising an outer rigid shell and an inner flexible shell which is hermetically bonded to the inner edge of the outer rigid shell and is made of an airtight flexible sheet, the outer shell being provided with an air filling The outer rigid sheath is formed by a transport box or container and the inner flexible sheath is made of a flexible film and thermoplastic. A recess for the product to be transported can be preformed in the inner flexible jacket.

. By using the shipping container of the present invention to package shock and vibration sensitive products, the cushioning properties are significantly improved, the storage area of the packaging material is saved by the user of the packaging, and the need for difficult disposal of large amounts of fixation material after unpacking is avoided. The packaging is hygienic and can be incorporated directly into the production flow of packaged products. It will also increase the productivity of packaging operations, save labor and investment in the packaging industry and reduce the cost of packaging.

Due to its shape adaptability, the transport packaging allows variable packaging of a large number of different products within a certain size range. The air filling valve allows the air pressure inside the package to be changed during transport. The transport packaging protects the packaged product not only against mechanical damage but also against environmental influences.

BRIEF DESCRIPTION OF THE DRAWINGS In the accompanying drawings, several examples of a particular embodiment of a shipping container according to the invention are shown, wherein FIG. 1 shows a two-part shipping container with a vertical dividing plane and two air chambers; and a flexible fixing insert under the cover of the package, and FIG. 3 shows a two-piece transport package with a horizontal dividing plane and two air chambers with a preformed recess.

The two-piece shipping container of Fig. 1 has two air compressors arranged along a vertical dividing plane. Each air chamber 1 consists of an outer rigid shell 2 and an inner flexible shell 3. ' The inner elastic skin 3 is made of a flexible, air impermeable sheet, e.g. a plastic sheet, preferably thermoplastic materials such as polyethylene, polyvinyl chloride, polypropylene are used. Both air chambers are provided with an air filling valve 40, which may be equipped with a fuse or seal. Each chamber 2 constitutes substantially half of the shipping container and is provided with an unmarked recess or shoulder at its periphery on the side of the dividing plane of the shipping container for connection thereto. The packaging is carried out by placing the product 6 in one pre-inflated air chamber 11, which is laid in a horizontal position, closed with the second pre-inflated air chamber 11, and the resulting transport package is wrapped with a strap 8.

After inflating to an operating pressure of between 1 and 7 MPa, the package is placed upright. The outer rigid casing 2 is formed of a transport box or container, and serial transport boxes or containers may be used for its manufacture, the shape of which is not essential. The outer rigid casing 24 is provided with slots 9 for handling the forklift, a recess 10 for handling labels, and hand grips 11 for handling. The shipping container may be chamfered downwardly and shaped in known manner to allow stacking in several layers. It is advantageous to use fiberglass, tough plastic or light metal to produce the outer rigid sheath.

FIG. 2 shows another particular embodiment of the transport container according to the invention, wherein the transport container has one air chamber that is closed by a lid 7 with a resilient fixation pad 12. The design of the air chamber 7 is similar to that of the particular embodiment of FIG. The fixing insert 12 positioned between the lid 7 and the transported product 6 made of plastic, for example soft foam polyurethane, compensates for any unevenness and acts as an upper fixing element. Preferably, plain or multilayer corrugated cardboard provided with stiffeners to increase stiffness for stacking and handling can be used to produce the outer, rigid container. The air chamber is mounted on a pallet 13. The lid 7, the air chamber and the pallet 13 are retracted after the article 6 has been tightened with a binding strap 13 so as to form a closed handling unit.

FIG. 3 shows another particular embodiment of the transport container according to the invention, wherein the transport container is formed by two air chambers 1 with a horizontal dividing plane. The two air chambers 1 have been deformed in their inner flexible jacket 3. a recess 5 for the product to be transported 6. By pulling the two air chambers together with the tightening screws 14, the pressure in both air chambers is increased.

In this embodiment, the air filling valves 4 need not be.

These three exemplary embodiments were one of a number of possible combinations that employ the principle of the invention and its individual elements.

The shock-absorbing transport packaging can also be used as a returnable packaging, either empty or filled with another type of product, making use of its shape variability. In addition to its high mechanical efficiency, which guarantees perfect protection of sensitive products against damage, its clira-technology ^x efficiency for products subject to corrosion can also be used. The product is practically hermetically sealed and a suitable microclimate can be created in the packaging using desiccants and inhibitors. Good thermal insulation properties of the package can also be utilized due to the low thermal conductivity of the outer shell and the air layer between the inner and outer shell.

These properties can be used especially in health care, food industry and the like. Furthermore, the transport container according to the invention can be advantageously used for the transport of electrical appliances and articles, works of art, glass products, special technology and other products susceptible to shock and vibration. Any sharp edges of some products should be covered with a bandage before being placed in the shipping container to avoid puncturing the inner casing of the air chamber and thereby reducing pressure.

SUBJECT V

Claims (3)

A shock-absorbing shipping container by means of resilient fixation elements surrounding shock-sensitive products, characterized in that it comprises at least one air chamber (1) comprising an outer rigid casing (2) and an inner resilient casing (3) which is hermetically bonded to the inner edge of the outer rigid shell (2) and is made of a flexible, air impermeable film, the outer shell (2) Y N O L E Z U is equipped with air filling valve / 4 /. Transport container according to claim 1, characterized in that the outer rigid casing (2) is formed by a transport box or a container and the inner flexible casing (3) is made of a flexible film of thermoplastic. Transport container according to Claims 1 and 2, characterized in that in the inner elastic jacket (3) there are preformed recesses (5) for the transported product (6). 3 sheets of drawings Sevrrografia. n. xivod 7. Mo · »