MXPA00001986A - Explosion resistant assembly including mutually engageable flanges - Google Patents

Abstract

A lightweight explosion-mitigating assembly including at least a containment structure and a door is disclosed. The containment stucture and door each include at least one set of engagement flanges. The flanges are movable between an interlocking arrangement and a non-interlocking arrangement. In the non-interlocking arrangement, the flanges are sufficiently relatively operatively free from each other to permit movement of the door relative to the containment structure between open and closed positions. On the other hand, in the interlocking arrangement, the door is in the closed position and the flanges are both mutually engageable and slidable relative to each other into mutual engagement and out of mutual engagement. When mutually engaged, the containment-structure flange and the door flange are not pivotable relative to each other between the interlocking and non-interlocking arrangements, yet sliding movement of the flanges relative to each other out of mutual engagement permits at least one of the containment-structure flange and the door flange to be moved relative to each other between the interlocking and non-interlocking arrangements. This structure may be lightweight, especially when elongated flanges are used, and does not rely on the bending stiffness of the structure to mitigate explosive forces.

Description

EXPLOSION RESISTANT ASSEMBLY THAT INCLUDES MUTUALLY COUPLABLE RIMS BACKGROUND OF THE INVENTION FIELD OF THE INVENTION This invention is concerned with a closure assembly designed to receive explosive devices and confine or at least mitigate the forces of the explosion released by its detonation. The lock assembly is especially suitable for use with public transportation equipment, such as a flight storage receptacle for passenger luggage and other packages, wherein the suppression of explosive devices explosive hidden in luggage or packages Passengers are essential for a continuous safe operation of an aircraft, ship, train or other such types of vehicles.

DESCRIPTION OF THE RELATED TECHNIQUE In past decades, there has been (in the perception of and in effect) an increased threat of national and foreign terrorism. Perhaps nowhere is this threat more insidious or the public more vulnerable than in air travel, where terrorist tactics, such as the threat of detonation in flight of an explosive device, undermine public confidence in air travel. REF .: 32920 and endangers the lives of the crew and passengers of the aircraft. Due to the heavy flow of traffic by air and the pressure exerted by airline customers to comply with flight schedules, specially scheduled arrival times and privacy issues, it is not feasible for airport personnel to inspect each bag or package. individually by hidden explosive devices. Thus, to counteract and discourage terrorist threats, there has been a visible increased presence of airport security equipment and personnel assigned to locate and identify explosive packages before they are loaded onto an aircraft. Among the equipment and the measures taken to detect explosive devices in packages without requiring internal inspection of the packages are X-ray machines, metal detectors and in some cases trained dogs. Unfortunately, these preventive measures are not infallible, leaving the threat that hidden explosives adjusted for the detonation in flight are smuggled on board an aircraft. Concerns about the inaccuracies of the anti-terrorist defenses described above have prompted discussions for the enactment of regulations planned to complement such defenses by providing another kind of anti-terrorist protection. Specifically, these discussions are concerned with the provision of reinforced storage containers designed to store passenger luggage and other packages and in the case where explosive devices concealed in luggage are not detected prior to the takeoff of an aircraft, confine and / or minimize the effect of any explosive force in flight to safeguard the aircraft against catastrophic failures, as occurred on Pan Am flight 109. See, for example, Public Law 101-604: Aviation Safety Improvement Act of 1990. While various materials are known to make explosion-resistant containers effectively reinforced, one of the most susceptible regions of such containers is the door interface and the containment structure. In particular, the release of an explosion force within the container tends to deform the containment structure and the door radially outwardly. This tends to bend, rotate and / or twist the sealing devices out of contact, thereby allowing the burst and pull force of the door to be released tangentially away from the containment structure. The more traditional burst containment doors depend on the rigidity of the door and the door frame to withstand these actions. These doors are sealed at discrete points, often using heavy-duty slide stops and the like. The stiffness required by these designs leads to heavy implementations. These designs are therefore not suitable for many uses, such as in vehicles, where there is a heavy penalty for such conventional designs. This is especially true in aviation applications.

BRIEF DESCRIPTION OF THE INVENTION It is therefore an object of this invention to provide a relatively lightweight luggage container assembly designed to receive and accommodate a variety of passenger luggage pieces, as well as other stacked packages, collectively referred to as luggage, which still is sufficiently constructed and reinforced at the interface of the wall structures of its box and door or entry structures to maintain contact or coupling of the wall structures of the box and door structures during a burst event and thereby substantially confine and / or mitigate the explosive force of an explosive device hidden in luggage. In accordance with the principles of this invention, these and other objects are obtained by providing a closure assembly that mitigates the explosion, such as a stackable baggage receiver closing assembly, of aircraft, capable of substantially confining the explosive energy of the aircraft. a detonated explosive device arranged in a mounting chamber. The assembly comprises a containment structure having at least one access opening designed (eg, by size) to allow movement of items, eg, luggage to and from one or more chambers and a door structure operatively associated with the opening. of access to move between an open position, in which the interior is accessible through the access opening and a closed position in which the door effectively obstructs and seals the access opening against the movement of luggage and the entry of rain , etc. Each of the containment structure and door includes at least one coupling flange in the form of a hook (or J-shaped) defining at least one detent receiving groove. The relative movement between at least one of the flange of the containment structure and the door flange allows movement of the coupling flanges between relationships or arrangements without interlacing and interlacing. In the non-interlacing arrangement, the corresponding ridges are relatively sufficiently operatively free from each other to allow movement of the door relative to the containment structure between the open and closed positions. In the entanglement arrangement, the door is closed and the ridges are in a position where they are mutually coupled as they slide relative to each other in mutual engagement. When mutually coupled, the flange of the containment structure and the door flange are not capable of being separated by being turned out of their engaged position. However, the sliding movement of the flanges one in relation to the other outside their mutual coupling is allowed. After being separated by such relative sliding movement, at least one, the flange of the containment structure and the door flange can be moved, such as by rotation, in relation to the other, such that the door can be open According to a preferred embodiment of this invention, when mutually coupled, the detent receiving grooves of the corresponding flanges are facing substantially in opposite directions and a retaining portion of the flange of the containment structure and a retaining portion of the flange of the door are respectively received in the detent receiving grooves of the door flange and the rim of the containment structure by a sufficient distance and with a separation small enough to prevent separation when rotating for example or by rotation of the flanges out of mutual coupling. The principles of this invention, as summarized above, are applicable to all types of storage assemblies, but have particular application to assemblies designed to confine and suppress the discharge of traumatic explosive forces, such as burst resistant containers and explosives storage boxes. This invention is especially designed for portable, collapsible or separable wall structures and burst-resistant containers that can be used in, loaded on, and unloaded from aircraft and other vehicles. In addition, the principles of this invention may be applicable to various other types of container assemblies, including containers with reinforced closures designed to tolerate high continuous internal pressures such as autoclaves. These and other objects, features and advantages of this invention will become apparent to those skilled in the art from the following detailed description when taken in conjunction with the accompanying drawings which illustrate by way of example the principles of this invention.

BRIEF DESCRIPTION OF THE DRAWINGS The attached drawings illustrate embodiments of this invention. In such drawings: Figure IA is a perspective view of a closure assembly according to an embodiment of this invention; Figure IB is an enlarged view of a portion of the closure assembly shown in Figure IA; Figures 2A to 2D are sectional views of the closure assembly shown in Figure IA illustrating a sequence of steps carried out to operatively separate and unlock corresponding coupling flanges and move the door from a closed position to an open position in accordance with one embodiment of this invention; Figures 3A to 3D are sectional views illustrating a sequence of steps carried out to operatively separate and unlock corresponding mating flanges and move the door from a closed position to an open position according to another embodiment of this invention; Figure 4 is a sectional view of the closure assembly showing a tie-down technique for securing the containment structure to a vehicle; and Figure 5 is a sectional view of the closure assembly showing another tie-down technique to secure the containment structure. to a vehicle.

DETAILED DESCRIPTION OF THE INVENTION With reference more particularly to the drawings, there is shown in Figure IA an assembly that is stackable in a vehicle carrying passengers, such as a ship or an aircraft and capable of substantially confining or at least mitigating the explosive energy from an explosive device detonated. The assembly 10 comprises a containment structure (or box) 12 and a door 14 illustrated in a partially open position relative to the containment structure 12 and the access opening 18. The containment structure 12 and the door 14 are joined by an elongated articulation joint 16 extending along and operatively joined to a corresponding side of each of the containment structure 12 and the door 14. A frame portion or structure 15 of the containment structure 12 defines by at least one opening 18 in communication with a chamber 19 defined by the containment structure 12. As shown in Figures IA and IB, the containment structure 12 and the door 14 include three sets of mutually engageable flanges (also referred to in FIG. present as coupling elements) on the remaining non-articulated sides. More specifically, the containment structure 12 includes a vertically oriented elongated side-coupling flange 20, an elongated upper coupling flange 22 and an elongated bottom coupling flange 24. The lateral, upper and lower flanges of the containment structure 12 are mutually engageable respectively with an elongated side coupling flange 30, an elongated upper coupling flange 32 and an elongated lower coupling flange 34 of the door 14. The construction and arrangement of each of these sets of corresponding coupling flanges are substantially identical. For the purpose of brevity, the coupling flanges are discussed in greater detail with reference to flanges 20 and 30 in Figures 2A to 2D. Figure 2A illustrates the coupling flanges 20 and 30 in interlocking and mutually coupled arrangements, with the door 14 in a closed position relative to the containment structure 12, such that the door 14 obstructs and preferably prevents access to the chamber 19 through the access opening 18 (figure 2D). As shown in Figure 2A, the coupling flanges 20 and 30 have retaining portions 40 and 50 respectively, which are designated by shaded areas. In the mutually coupled arrangement, the retaining portion 40 is received in a detent receiving groove 52 (Figure 2B) of the door flange and the retaining portion 50 is received in a detent receiving groove 42 (Figure 2B) of the flange. 20 of the containment structure. In the illustrated mode, the detent receiving slits 42 and 52 are both facing along a direction parallel with a plane in which the door 14 lies. In the arrangement illustrated in Figure 2A, the relative motion of the door 14 in the distance of the containment structure 12 and its open position is prevented by mutual cooperation between the retaining portions 40 and 50, which are joined together as the door 14 is driven from the containment structure 12. With reference to the figure 2B, the coupling flange 20 includes an articulated portion (or hinged hinged portion) 44, such as a hinge or hinge, constructed and arranged to allow the retaining portion 40 and the receiving slit 42 of the bolt to be moved (via slip to along a substantially linear path) away from the receiving groove 52 of the retainer and the retaining portion 50, respectively, to partially or completely slide the portions retaining means 40 and 50 outside their corresponding retainer receiving grooves 52 and 42 and out of mutual engagement. When moved out of engagement, as shown in Figure 2B, the hinged portion 44 allows the engagement flange 20 to be rotated relative to the engagement flange 30 to the non-interlacing arrangement shown in Figure 2C. In this regard, the sliding movement discussed in relation to Figures 2A and 2B must (partially) withdraw the retaining portions 40 and 50 from their corresponding detent receiving slots 52 and 42 by a distance sufficient to remove the flanges 20 and 30 from their mutual coupling and by this allow the rotary movement to occur. In the non-interlacing arrangement, the flanges 20 and 30 are relatively sufficiently operably free from each other to allow movement of the door 14 relative to the containment structure 12 from its closed position to its open position. Figure 2D shows the door in a partially open position. Although the invention is not necessarily intended to be limited to any principle or theory, it is believed that the superior burst mitigating effect demonstrated from the assembly of the invention is attributable, at least in part, to the following characteristic shown in the drawings. As will be understood by those skilled in the art, when an explosive device is detonated within the closure assembly 10, forces are applied to the interior walls of the containment structure 12 and the door 14, moving all the interior walls outwardly. As will be further understood in the art, the interior walls of the containment structure 12 and the door initially tend to deform, most by bending, rotating one relative to the other and reconfiguring to a substantially spherical shape. In this deformation regime, the edges or sides of the door 14 tend to rotate in relation to the edges, or sides, of the containment structure 12 with which the door 14 is associated. This action applies a moment of bending around an axis parallel to the door / opening edges. At this point, the blast forces tend to produce a rotational torque that tends to rotate the coupling elements (since they are attached to the structures 12 and 14) together. Conventional seals could either be destroyed by such bending moment or turned to a position of separation. To prevent uncoupling, the coupling elements of this invention are designed in such a way that when they are in the mutually coupled array shown in Figure 2A, the deformation caused by the explosion drives the corresponding coupling flanges towards each other and towards a mutual coupling. In addition, the walls defining the retainer receiving grooves do not provide sufficient clearance for the retaining portions received therein to rotate or to undergo such rotation in response to an explosive force. Conversely, the deformation absent from the coupling flanges themselves, the retaining portions remain in their corresponding detent receiving grooves. The mutual alignment feature of this design is facilitated by, but not predicated on, the use of articulations to locate one of the coupling flanges and by the use of a gate that is flexible in flexion relative to the forces obtained in an event. of explosion. The strength of the design is further enhanced by its inherent application to continuous detents that cover all (or substantially all) of the non-articulated portion of the perimeter of the door / containment structure interface. This allows the forces obtained at the interface to be distributed over a much larger portion of the interface, allowing the use of a lighter and less rigid sealing mechanism and consequently a lighter door and door frame. A second embodiment of this invention is illustrated in Figures 3A-3D. To facilitate an understanding of the structure and operation of this modality, it will be understood that the components of the modality illustrated in Figures 3A-3D corresponding in structure and / or function to the components of the embodiment of Figures IA and 2A-2D have have been designated with the same reference numerals as those used to designate the corresponding components of Figures IA, IB and 2A-2D (where appropriate) with the addition of the prefix 1. For example, the corresponding structure of assembly 10 shown in FIG. Figures IA, IB and 2A-2D is designated by the reference numeral 110 in Figure 3. In the second embodiment, when the elongated ridges (or coupling elements) 120 and 130 are in the mutually coupled arrangement shown in the figure 3A, the detent receiving grooves 14 and 152 (Figures 3B-3D) are both facing along a direction perpendicular to a plane in which the door structure 114. lies. or, in a manner similar to the first embodiment and as shown in Figure 3A, when the flanges 120 and 130 are mutually engaged the retainer receiving grooves 142 and 152 do not provide sufficient clearance for the retaining portions 140 and 150 received in the receptacles. same to rotate or undergo rotation in response to an explosive force. A comparison of Figures 3A and 3B shows that the retaining portions 140 and 150 are removed from their corresponding retainer receiving slits 152 and 142 by sliding the door 114 towards the containment structure 112. As shown in Figure 3C, once the retaining portions 140 and 150 have been at least partially removed from their corresponding retainer receiving grooves 152 and 142, the engaging flange 130 can be rotated about the articulating portion 144, thereby moving the coupling flanges 120 and 130 in a non-interlacing arrangement. In this regard, the sliding movement discussed in connection with Figure 3B must (partially) withdraw the retaining portions 140 and 150 from their corresponding detent receiving slits 152 and 142 by a distance sufficient to allow this rotational movement. In the non-interlacing arrangement, the flanges 120 and 130 are relatively sufficiently operatively free from each other to allow relative movement between the door 114 and the containment structure 112 from a closed position, in which the door 114 obstructs the opening of access to prevent access to the camera 119 through the access opening 118 to an open position shown in Figure 3D, in which the camera 119 is accessible through the access opening 118. Unlike the first embodiment, in the second embodiment illustrated in Figures 3A to 3D, the elongated articulation joint 16 illustrated in Figures IA and 2A-2D is replaced by a set of mutually engageable flanges 126 and 136 joined together by a series of 160 standard drilled bolts and crenellated nuts 162 standard, which can be captured together via bolts with pin 164 to guide the sliding movement between the flanges 126 and 136. The bolts 160 prevent the set of mutually engageable flanges 126 and 136 from sliding with each other, in such a way that the articulated connection between the engageable rim 136 and the door 114 provide a pivot line around which the door 114 rotates as the door 114 is moved between its closed and open positions. The second embodiment also differs from the first embodiment in that the flanges 120 and 130 slide into mutual engagement and disengagement upon moving the door 114 relative to the containment structure 112.; the articulation portion 144 does not allow movement of the door flange 120 independently of the movement of the door 114. Similar to the previous embodiment, the mutual alignment feature of this design is facilitated by, but not predicated on, the use of articulations. to locate the door coupling flange 130 and by using a door frame arrangement that is flexible in flexion in relation to the forces obtained in a bursting event. The strength of the design is further enhanced by its inherent application to continuous detents that run the entire periphery of the door / containment structure interface. Figures 4 and 5 respectively illustrate two techniques for securing the assembly 10 to a base assembly (eg, a vehicle, such as an aircraft). In Figure 14, a set of extruded frame elements 90 is used as a structural part of the base assembly. The base and walls of the assembly 10 are bolted 92 to these extrusions 90. These extrusions are provided with a flange for anchoring the assembly 10. In Figure 5, the containment structure 12 was reconfigured to include an inclined wall with bolts 92. to the base and side walls. The extrusion 90 provides the flange to tilt the containment structure. This extrusion is bolted to the outside of the inclined wall. Although not shown in the drawings, various constructions and arrangements of the elongated coupling elements may exist at the corners of the assembly 10. For example, for a burst-resistant container assembly, suitable spaces may be included for venting gases in a more than the corners. In other applications, the corners can be reinforced and / or sealed. Such reinforcement may serve to secure the ends of the coupling elements to their corresponding containment structure or door or in the case where a coupling element terminates at one end in proximity to one end of another coupling element, to secure the two coupling elements together. The reinforcement can be configured as a bracket or L-bracket attached to the coupling element and the retaining structure or door structure, a standard annular insertion joint joining two adjacent coupling elements or other known reinforcing structures. Various materials can be used to make assembly 10 (and 110). For example, door 14 (and 114) can be made from GLARE, which is provided by Structural Laminated Corporation of New Kensington, Pennsylvania. The articulation joint 44 (and 144) can be made of aluminum, such as a 20001 MS articulation (military specification). The elongated coupling elements can be made, for example, of extruded aluminum, such as aluminum 6061-T6. Finally, the containment structure 12 (and 112) and other additional components of the assembly can be made of sheet aluminum, such as aluminum 6061-T6, GLARE or other appropriate and reinforced material. The design of the assembly and in particular the elongated coupling elements, lends itself to the distribution of a traumatic or continuous internal load over a large area. Accordingly, one advantage of the assembly of this invention is the relatively light weight it possesses. Another advantage that derives from this assembly is the relatively low production costs associated with its production.

In its broader aspects, many variations and modifications to the assembly described above may be implemented without departing from the scope of this invention. For example, in the various figures, each of the coupling elements is connected to its containment structure or corresponding door with standard bolts and nuts. A series of sets of nuts and bolts can be arranged in spaced relation along the length of this connection. However, it will be understood that such connections can be carried out with another appropriate fastener or combination of fasteners, in which rivets and / or epoxy chemicals are included. Alternatively, the connections between the coupling flanges and the door or the coupling flanges and containment structure can be carried out by integrally forming these parts. Finally, the complementary flange assemblies can be arranged above, below or on one or both sides of the access opening or any combination thereof. Further, where the containment structure (or access opening) has a polygonal cross section different from the rectangular shape illustrated in the drawings (e.g., pentagonal or octagonal cross section), additional sets of complementary flanges and flanges may be employed. they do not have to be arranged on opposite sides of the access opening. In this regard, it will be noted that an even number of complementary flange assemblies can be employed if desired. According to another variant embodiment of the present invention, the 3-wall hook-shaped configuration of the complementary coupling elements can be modified to have, for example, two walls that collectively define a V-shaped channel. In this respect , it will be noted that it is not required that the coupling elements of the door structure have identical shapes to their corresponding containment structure coupling elements. The flange assemblies, however, must be mutually engageable with each other. According to still another variant embodiment of the present invention, the captured bolt and crenellated nut can be replaced by a comparable fastener, with a standard continuous joint or a comparable fastener or it can be removed in its entirety, such that the structure of door is completely separable from the containment structure. Fasteners such as quick release bolts may be employed to retain the door structure in its closed position and the interlock ribs in their mutually coupled position. Such quick release bolts may extend through the mutually coupled door flanges and containment structure. Rising and rotating detents can also be used to guide the movement of the corresponding flanges between interlocking and non-interlacing arrangements. Quick release bolts and appropriate lift and turn seals are available from McMaster-Carr. Each of the door flanges can be formed continuously or not continuously along a portion or the entire length of one of the sides of the door structure. Similarly, each of the flanges of the containment structure can be formed continuously or non-continuously along a portion or the entire length of the portion of the containment structure and / or access opening. In addition, more than one elongated coupling element of the door structure can be formed along one of the sides of the door structure and / or more than one elongated coupling element of the containment structure can be formed as length of a potion of the containment structure defining one of the sides of the access opening. The assembly may also include a plurality of doors with a plurality of access apertures in communication with the camera and / or may include a plurality of cameras.

The above description of selected embodiments of the invention has been provided for purposes of illustration and description. It is not proposed to be exhaustive or to limit the invention to the precise modalities described. Obviously, many modifications and variations will be evident to those of experience in the art. The modalities were chosen and described in order to better explain the principles of the invention and its practical application, thereby enabling others skilled in the art to understand the invention for various modalities and with various modifications as appropriate to the particular use contemplated. It is proposed that the scope of the invention be defined by the following claims and their equivalents. It is noted that, in relation to this date, the best method known by the applicant to carry out the aforementioned invention, is the conventional one for the manufacture of the objects to which it refers.

Claims (19)

1. CLAIMS Having described the invention as above, the content of the following claims is claimed as property: 1. An explosion-mitigating assembly, characterized in that it comprises: a containment structure defining at least one chamber and having at least one access opening dimensioned to allow articles to be inserted into and removed from such a chamber, the containment structure comprises at least one hook-shaped rim and at least one detent receiving groove and at least one door comprising at least a hook-shaped flange and at least one detent receiving groove, wherein at least one, of the flange of the containment structure and the door flange, is paired with the other and movable in relation to the other between: (a) a non-interlacing arrangement in which such ridges are relatively sufficiently operatively free of each other to allow movement of said door in relation to said containment structure, between an open position in which such a chamber is accessible through the access opening and a closed position in which said door prevents access through the access opening and (b) an interlacing arrangement in which said door is in the closed position and in which such a flange of the containment structure and the door flange are mutually engageable and slidable with each other in mutual engagement and disengagement.
2. 2. An assembly according to claim 1, characterized in that when said flange of the containment structure and the flange of the door are mutually coupled, they are not rotatable with each other between the interlacing arrangements and without interlacing and furthermore where the movement sliding one of the flanges in relation to the other out of mutual coupling allows at least one of the flange of the containment structure and the door flange to be moved in relation to the other between the interlacing arrangements and without interlacing.
3. 3. An assembly according to claim 1, characterized in that it further comprises an articulated element operably linked to at least one of the rim of the containment structure and the rim of the door to allow relative sliding movement of the flanges in engagement and mutual decoupling and the relative rotational movement of the flanges between the interlacing arrangements and without interlacing.
4. 4. An assembly according to claim 1, characterized in that the flange of the containment structure and the door flange are elongated.
5. Assembly according to claim 1, characterized in that the flange of the containment structure and the door flange are defined by first, second and third walls, the third wall is joined and arranged perpendicular to the first and second walls. walls to define a base of the detent receiving groove.
6. An assembly according to claim 1, characterized in that the flange of the containment structure and the door flange are in proximity to one side of the access opening and constitute a first set of flanges and in addition where a second assembly and a third set of flanges are respectively arranged in proximity to the upper and lower part of the access opening.
7. 7. Assembly according to claim 1, characterized in that the containment structure is collapsible.
8. 8. Assembly according to claim 1, characterized in that the assembly chamber is designed to receive luggage.
9. 9. An assembly according to claim 8, characterized in that the assembly is stackable in an aircraft.
10. An explosion mitigation assembly, characterized in that it comprises: a containment structure defining at least one chamber and having at least one access opening sized to allow a plurality of articles to be inserted into and removed from the chamber, such containment structure comprises at least one hook-shaped rim defining at least one detent receiving groove and at least one door comprising at least one hook-shaped rim defining at least one receiving slit of retainer, wherein at least one, of such a flange of the retaining structure and the door flange, is paired with the other and movable in relation to the other between: (a) a non-interlacing arrangement in which the flanges they are relatively sufficiently operably free from each other to allow movement of the door relative to the containment structure between an open position in which such a chamber is accessible through such an access opening and a closed position in which such the door prevents access through the access opening and (b) an interlacing arrangement in which such a door is in the closed position and in which such a flange of the structure The containment and the door flange are mutually engageable, such that when mutually coupled, such detent receiving grooves face one another in substantially opposite directions to each other and a retaining portion of such a flange of the structure of the retainer. containment and a retaining portion of the door flange are respectively received in the receiving groove of the door flange retainer and the receiving groove of the flange retainer of the containment structure by a sufficient distance and a sufficiently small gap to prevent the rotation or rotation of the flanges out of mutual coupling.
11. 11. An assembly in accordance with the claim 10, characterized in that the flange of the containment structure and the door flange are slidable one in relation to the other in mutual coupling and out of mutual coupling.
12. 12. A mounting in accordance with the claim 11, characterized in that the sliding movement of the flanges one in mutually decoupling relation allows that at least one, of such flange of the containment structure and the flange of the door, is moved relative to the other between the interlocking arrangements and without interlacing.
13. An assembly according to claim 12, characterized in that it further comprises an articulated element operatively connected to at least one of the rim of the containment structure and the door rim, to allow a relative sliding movement of the rims in coupling and decoupling and relative movement of such ridges between the interlacing arrangements and without interlacing.
14. 14. Assembly according to claim 10, characterized in that said flange of the containment structure and the flange of the door are each elongated.
15. 15. Assembly according to claim 10, characterized in that the flange of the containment structure and the door flange are each defined by first, second and third walls, the third wall is joined and is arranged perpendicular to the first walls. and second walls to define a base of the receiving groove of the retainer.
16. 16. Assembly according to claim 10, characterized in that the flange of the containment structure and the door flange are arranged in proximity to one side of said access opening and constitute a first set of flanges and in addition where a second assembly and a third set of such flanges are disposed respectively in proximity to the upper and lower part of such access opening.
17. 17. Assembly according to claim 10, characterized in that the containment structure is collapsible.
18. 18. Assembly according to claim 10, characterized in that the assembly is designed to receive luggage.
19. 19. An assembly in accordance with the claim 18, characterized in that such assembly is stackable in an aircraft. EXPLOSION RESISTANT ASSEMBLY THAT INCLUDES MUTUALLY COUPLABLE RIMS SUMMARY OF THE INVENTION A lightweight explosion mitigating assembly is described which includes at least one containment structure and one door. Each of the containment structure (10) and the door (14) include at least one set of coupling flanges (20, 22, 24, 30, 32, 34). The ridges are movable between an interlacing arrangement and an interlacing arrangement. In the non-interlacing arrangement, the flanges are sufficiently free operatively relative to each other relatively to allow movement of the door relative to the containment structure between open and closed positions. On the other hand, in the interlock arrangement, the door is in the closed position and the shoulders are mutually engageable and slidable relative to each other in mutual engagement and out of mutual engagement. When they are mutually coupled, the flange (20, 22, 24) of the containment structure and the flange (30, 32, 34) of the door are not rotatable with each other between the interlacing arrangements and without interlacing, still the sliding movement of the flanges one in relation to the other outside coupling allows at least one of the flange of the containment structure and the flange of the door to be moved one relative to the other between the interlocking arrangements and without interlacing. This structure can be light, especially when using elongated ridges and does not depend on the flexural stiffness of the structure to mitigate the forces of the explosion.