PROPELLANT BLAST SUPPRESSIVE TRANSPORTATION BOX
A propellant blast suppressive transportation/storage box for at least one layer of elongate large-caliber ammunition, such as shells. The box is formed as a parallelepipedic cage of a steel grid structure having a bottom section rigidly integrated with four side wall sections so as to define a storage compartment for snugly receiving the at least one layer of ammunition therein. A cage lid is pivotally attached to an upper reinforcement rim of at least one of the side walls sections.
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This application claims priority to European patent application 07115387.8 filed 31 Aug. 2007.
BACKGROUND OF THE INVENTION1. Technical Field
The present invention relates to a propellant blast suppressive transportation/storage box for at least one layer of elongate large-caliber ammunition, such as shells. Such a transportation/storage box is configured to be able to withstand or minimize the damage of an unintentional or accidental blast of the propellant of the ammunition.
2. Description of Related Art
A box for transportation and storage of explosive goods is disclosed in DE 202 18 297 U1 and comprises separate grid wall sections which are interconnected mutually and to bottom and top sections of the box by discrete hinge joints in such a manner that all side sections of the box can be folded out or collapse from an upraised condition into a flat condition when the box is not in use. This will make it possible to stack a plurality of boxes together with associated foldable outer transportation cartons in a limited space. The grid structure of the side sections of the box is intended to take up energy released in case of an accidental explosion of the goods packed in the box. In particular, this kind of box is suitable for transportation and storage of explosive articles such as airbags for motor vehicles, where the explosive power of such articles is relatively limited. However, boxes configured in accordance with the teachings of DE 202 18 297 U1 are not suitable for transportation and storage of more powerful explosive products, such as elongate large-caliber ammunition, e.g. shells, in order to take up and suppress the blast of an accidentally ignited propellant charge of the ammunition.
SUMMARY OF THE INVENTIONIt is an object of the present invention to provide an improved storage and transportation box which can withstand and minimize the damage caused by an unintentional or accidental blast of the propellant of the ammunition. Owing to the proposed rigid integration of the four side walls sections, the bottom section and the lid, each of a steel grid structure, a strong blast suppressive box is achieved.
Further features and advantages of the box according to the present invention will be described more in detail in the following description with reference to the accompanying drawings.
In
As shown in
In order to minimize the space needed for opening and closing the cage 10 the lid 22 preferably comprises two sections 22a, 22b, each of which being pivotally attached to a respective upper short side reinforcement rim 26a, 26b of the cage 10. Yet, the lid 22 may be formed in one single piece, if desired. As shown in
The rigid integration of the four side walls sections 12, 14, 16, 18, the bottom section 20 and the lid 22, each of a steel grid structure, creates a strong blast suppressive cage box 10 that is able to withstand or minimize the damage of an unintentional or accidental blast of the propellant of the ammunition. If desired, the cage box 10 may be fitted into an additional, outer box (not shown) for transportation purposes.
Claims
1. A propellant blast suppressive transportation/storage box for at least one layer of elongate large-caliber ammunition, the box comprising:
- a parallelepipedic cage comprising a steel grid structure having a bottom section rigidly integrated with four side wall sections so as to define a storage compartment for snugly receiving said at least one layer of ammunition therein, and
- a cage lid pivotally attached to an upper reinforcement rim of at least one of the side wall sections for securely closing the ammunition storage compartment to a self-supporting, blast suppressive cage during storage and transportation of the ammunition.
2. The propellant blast suppressive box according to claim 1, wherein the four side wall sections of the cage are formed by one single steel grid element bent into a circumferentially closed wall member.
3. The propellant blast suppressive box according to claim 2, wherein all upper and lower edges of the wall member and upwardly bent peripheral edges of the bottom section are fastened by welding to respective circumferential reinforcement steel rims.
4. The propellant blast suppressive box according to claim 1, wherein the cage comprises a circumferentially extending reinforcement strip located substantially in level with a center axis of each layer of ammunition.
5. The propellant blast suppressive box according to claim 1, wherein the lid comprises two sections pivotally attached at one end thereof to opposite upper side rims of the cage, said lid sections overlapping one another at their other ends.
6. The propellant blast suppressive box according to claim 5, wherein the lid sections are pivotally attached to a forward and a rearward end wall section, respectively, of the cage.
7. The propellant blast suppressive box according to claim 1, wherein the storage compartment of the cage is dimensioned to snugly receive portable cases for individual storage of the elongate large-caliber ammunition.
8. The propellant blast suppressive box according claim 1, wherein an outer transportation box is configured to snugly receive the cage therein.
9. The propellant blast suppressive transportation/storage box according to claim 1, wherein the elongate large-caliber ammunition comprises shells.
Type: Application
Filed: Sep 2, 2008
Publication Date: Apr 30, 2009
Applicant: SAAB AB (Linkoping)
Inventors: Jon Toreheim (Karlstad), Alf Prytz (Karlskoga), Peter Fritiofsson (Karlskoga)
Application Number: 12/202,446