This disclosure concerns reusable containers for storage and/or transport of goods, including collapsible containers for ammunition and other articles, as well as methods for their fabrication.
Various goods may be packaged in reusable containers for storage and/or transport. After such goods are removed therefrom, such containers may be returned to a shipper for re-use. Collapsing a reusable container may dramatically reduce the volume requirements and cost associated with return shipment. However, it may be difficult to achieve a high degree of volume reduction while also addressing the potential needs for a collapsible container to be durable, liquid-impermeable, light in weight, shock-resistant, and substantially undeformable in character.
As one class of articles that may be stored and transported in reusable containers, ammunition (e.g., bullets and shells) requires special care. Moisture is detrimental to the longevity of ammunition since exposure to moisture may cause metal components of ammunition to corrode. Strength and durability are also required for ammunition containers to protect their contents and ensure that ammunition is immediately ready for use when needed. Minimizing noise occasioned by removing ammunition from containers may also be tactically important to preserve an element of surprise in battlefield situations.
The art continues to seek collapsible containers for ammunition and other articles that are capable of providing improved performance. Aspects of this disclosure address shortcomings associated with conventional containers.
Aspects of this disclosure relate to a collapsible container that includes a collapsible plate assembly formed by four plates joined by hinge pins along edges thereof, as well as a top lid and a bottom lid that may be joined to the collapsible plate assembly and latched into place. When the top and bottom lids are removed, the collapsible plate assembly may be collapsed by pivoting adjacent plates along edges thereof at the hinge pins, in a manner similar to flattening a parallelogram. The top and bottom lids may be affixed to plates of the collapsible plate assembly with (i) hinge pin segments configured to cooperate with hinge pin receiver segments, and (ii) clasps configured to engage clasp receivers. Certain embodiments include a liner configured to be received within a plate assembly cavity formed by the collapsible plate assembly when in a deployed state, with the liner including opposing end faces configured to be depressed against the top and bottom lid, respectively, to form a water-tight inner cavity of the collapsible container.
In one aspect, the disclosure relates to a collapsible container that comprises a collapsible plate assembly, a top lid, and a bottom lid. The collapsible plate assembly comprises: first and second end plates each having two opposing edges defining a series of end plate hinge pin receivers; first and second side plates each having two opposing edges defining a series of side plate hinge pin receivers; and a plurality of hinge pins joining edges of the first and second end plates to edges of the first and second side plates, wherein each hinge pin of the plurality of hinge pins extends through the hinge pin receivers of one end plate and through the hinge pin receivers of one side plate. The collapsible plate assembly is configured to be manipulated between a collapsed state having a flattened configuration and a deployed state having a rectangular configuration, with the collapsible plate assembly in the deployed state having a top opening and a bottom opening. The top lid is configured to cooperate with the collapsible plate assembly to cover the top opening, and the bottom lid is configured to cooperate with the collapsible plate assembly to cover the bottom opening.
In certain embodiments, the first end plate comprises a first clasp receiver; the top lid comprises a first pivotal linkage coupled with a first clasp that is configured to engage the first clasp receiver; the second end plate comprises a second clasp receiver; and the bottom lid comprises a second pivotal linkage coupled with a second clasp that is configured to engage the second clasp receiver.
In certain embodiments, a first hinge joint is provided between the first end plate and the bottom lid, and a second hinge joint is provided between the second end plate and the top lid. In certain embodiments, the first hinge joint comprises a first plurality of hinge pin segments that are received by a first plurality of hinge pin segment receivers; and the second hinge joint comprises a second plurality of hinge pin segments that are received by a second plurality of hinge pin segment receivers. In certain embodiments, the bottom lid comprises the first plurality of hinge pin segment receivers; the first end plate comprises the first plurality of hinge pin segments; the top lid comprises the second plurality of hinge pin segment receivers; and the second end plate comprises the second plurality of hinge pin segments.
In certain embodiments, the top lid comprises an upper surface, a plurality of protruding features that protrude upward from the upper surface, a handle recess that is recessed relative to the upper surface, and a deployable handle that is configured to be received in the handle recess when the deployable handle is in a non-deployed position; the bottom lid comprises a lower surface, and a plurality of recessed features that are recessed relative to the lower surface; and the plurality of protruding features of the top lid correspond in size, shape, and placement to the plurality of recessed features of the bottom lid.
In certain embodiments, the top lid comprises a peripheral lip that extends downward relative to the upper surface, with the peripheral lip of the top lid laterally bounding a lower recess of the top lid; and the bottom lid comprises a peripheral lip that extends upward relative to the lower surface, with the peripheral lip of the bottom lid laterally bounding an upper recess of the bottom lid. In such an embodiment, when the collapsible plate assembly is in the deployed state, an upper perimeter of the collapsible plate assembly is configured to be received within the lower recess of the top lid, and a lower perimeter of the collapsible plate assembly is configured to be received within the upper recess of the bottom lid.
Another aspect relates to a method for fabricating a collapsible container as disclosed herein, the method comprising: inserting the first plurality of hinge pin segments into the first plurality of hinge pin segment receivers to join the first end plate and the bottom lid; inserting the second plurality of hinge pin segments into the second plurality of hinge pin segment receivers to join the second end plate and the top lid; engaging the first clasp with the first clasp receiver to secure the top lid in a position to cover the top opening; and engaging the second clasp with the second clasp receiver to secure the bottom lid in a position to cover the bottom opening.
In another aspect, the disclosure relates to a collapsible container that comprises a collapsible plate assembly, a top lid, a bottom lid, and a liner configured to be received within the collapsible plate assembly. The collapsible plate assembly comprises: first and second end plates each having two opposing edges defining a series of end plate hinge pin receivers; first and second side plates each having two opposing edges defining a series of side plate hinge pin receivers; and a plurality of hinge pins joining edges of the first and second end plates to edges of the first and second side plates, wherein each hinge pin of the plurality of hinge pins extends through the hinge pin receivers of one end plate and through the hinge pin receivers of one side plate. The collapsible plate assembly is configured to be manipulated between a collapsed state having a flattened configuration and a deployed state having a rectangular configuration, with the collapsible plate assembly in the deployed state having a top opening and a bottom opening. The top lid is configured to cooperate with the collapsible plate assembly to cover the top opening, and the bottom lid is configured to cooperate with the collapsible plate assembly to cover the bottom opening. The liner is configured to be received within a plate assembly cavity formed by the collapsible plate assembly when in the deployed state, with the liner having a generally rectangular tubular shape, comprising a top end face, and comprising a bottom end face. When the liner is received within the plate assembly cavity and when the top lid and the bottom lid are secured in closed positions against the collapsible plate assembly, the top end face is configured to be depressed against the top lid and the bottom end face is configured to be depressed against the bottom lid to form a water-tight inner cavity of the collapsible container.
In certain embodiments, the first end plate comprises a first clasp receiver; the top lid comprises a first pivotal linkage coupled with a first clasp that is configured to engage the first clasp receiver; the second end plate comprises a second clasp receiver; and the bottom lid comprises a second pivotal linkage coupled with a second clasp that is configured to engage the second clasp receiver.
In certain embodiments, a first hinge joint is provided between the first end plate and the bottom lid, and a second hinge joint is provided between the second end plate and the top lid. In certain embodiments, the first hinge joint comprises a first plurality of hinge pin segments that are received by a first plurality of hinge pin segment receivers; and the second hinge joint comprises a second plurality of hinge pin segments that are received by a second plurality of hinge pin segment receivers. In certain embodiments, the bottom lid comprises the first plurality of hinge pin segment receivers; the first end plate comprises the first plurality of hinge pin segments; the top lid comprises the second plurality of hinge pin segment receivers; and the second end plate comprises the second plurality of hinge pin segments.
In certain embodiments, the top lid comprises an upper surface, a plurality of protruding features that protrude upward from the upper surface, a handle recess that is recessed relative to the upper surface, and a deployable handle that is configured to be received in the handle recess when the deployable handle is in a non-deployed position; the bottom lid comprises a lower surface, and a plurality of recessed features that are recessed relative to the lower surface; and the plurality of protruding features of the top lid correspond in size, shape, and placement to the plurality of recessed features of the bottom lid.
In certain embodiments, the top lid comprises a peripheral lip that extends downward relative to the upper surface, with the peripheral lip of the top lid laterally bounding a lower recess of the top lid; and the bottom lid comprises a peripheral lip that extends upward relative to the lower surface, with the peripheral lip of the bottom lid laterally bounding an upper recess of the bottom lid. When the collapsible plate assembly is in the deployed state, an upper perimeter of the collapsible plate assembly as well as the top end face are configured to be received within the lower recess of the top lid, and a lower perimeter of the collapsible plate assembly as well as the bottom end face are configured to be received within the upper recess of the bottom lid.
In certain embodiments, the liner comprises an upper peripheral skirt that extends downward from a peripheral edge of the top end face and defines an upper skirt recess, and the liner comprises a lower peripheral skirt that extends upward from a peripheral edge of the bottom end face and defines a lower skirt recess.
In certain embodiments, when the collapsible plate assembly is in the deployed state and the liner is received within the plate assembly cavity, at least a portion of an upper perimeter of the collapsible plate assembly is received within the upper skirt recess, and at least a portion of a lower perimeter of the collapsible plate assembly is received within the lower skirt recess.
In certain embodiments, the first and second end plates, the first and second side plates, the top lid, and the bottom lid comprise aluminum; and the liner comprises a thermoplastic material.
In certain embodiments, a storage container disclosed herein contains ammunition within the water-tight inner cavity.
Another aspect of the disclosure relates to a method for fabricating a collapsible container as disclosed herein, the method comprising: inserting the first plurality of hinge pin segments into the first plurality of hinge pin segment receivers to join the first end plate and the bottom lid; inserting the second plurality of hinge pin segments into the second plurality of hinge pin segment receivers to join the second end plate and the top lid; engaging the first clasp with the first clasp receiver to depress the top lid against the top end face of the liner; and engaging the second clasp with the second clasp receiver to depress the bottom lid against the bottom end face of the liner. In certain embodiments, the method further comprises inserting the liner into the plate assembly cavity when the collapsible plate assembly is in the deployed state.
In certain aspects, any of the preceding aspects or other features disclosed herein may be combined for additional advantage.
Those skilled in the art will appreciate the scope of the present disclosure and realize additional aspects thereof after reading the following detailed description of the preferred embodiments in association with the accompanying drawing figures.
In various aspects, this disclosure relates to a collapsible container that includes a collapsible plate assembly formed by four plates joined by hinge pins along edges thereof, as well as a top lid and a bottom lid that may be joined to the collapsible plate assembly and latched into place. Methods for fabricating a collapsible container are also provided. When the top and bottom lids are removed, the collapsible plate assembly may be collapsed by pivoting adjacent plates along edges thereof at the hinge pins. The top and bottom lids may be affixed to plates of the collapsible plate assembly with (i) hinge pin segments configured to cooperate with hinge pin receiver segments, and (ii) clasps configured to engage clasp receivers. In certain embodiments, the collapsible container includes a liner configured to be received within a plate assembly cavity formed by the collapsible plate assembly when in a deployed state, with the liner including opposing end faces configured to be depressed against the top and bottom lid, respectively, to form a water-tight inner cavity of the collapsible container. A method for fabricating a collapsible container includes joining hinge pin segments with hinge pin segment receivers arranged between lids (i.e., top and bottom lids) and end plates of a plate assembly, and engaging clasps of the lids with clasp receivers associated with the end plates. If a liner is received by a plate assembly of the collapsible container, then engaging clasps of the lids with the clasp receivers serves to depress the lids against opposing end faces of the liner.
The embodiments set forth below represent the necessary information to enable those skilled in the art to practice the embodiments and illustrate the best mode of practicing the embodiments. Upon reading the following description in light of the accompanying drawing figures, those skilled in the art will understand the concepts of the disclosure and will recognize applications of these concepts not particularly addressed herein. It should be understood that these concepts and applications fall within the scope of the disclosure and the accompanying claims.
It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items.
Relative terms such as “below” or “above” or “upper” or “lower” or “horizontal” or “vertical” may be used herein to describe a relationship of one element, layer, or region to another element, layer, or region as illustrated in the Figures. It will be understood that these terms and those discussed above are intended to encompass different orientations of the device in addition to the orientation depicted in the Figures.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises,” “comprising,” “includes,” and/or “including” when used herein specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, and/or components, or groups thereof.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. It will be further understood that terms used herein should be interpreted as having a meaning that is consistent with their meaning in the context of this specification and the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As noted previously herein, a collapsible container according to certain embodiments includes four plates, a top lid, and a bottom lid. The four plates may include two end plates and two side plates. In certain embodiments, the two end plates are interchangeable with and/or mirror images of one another, and the two side plates are interchangeable with and/or mirror images of one another. The four plates may include hinge pin receivers along vertical edges thereof to permit the plates to be joined by hinge pins (upon insertion through cooperating hinge pin receivers of the plates) to form a collapsible plate assembly. In particular, a collapsible plate assembly may include first and second end plates each having two opposing edges defining a series of end plate hinge pin receivers, as well as first and second side plates each having two opposing edges defining a series of side plate hinge pin receivers, plus the hinge pins. Each hinge pin extends through the hinge pin receivers of one end plate and through the hinge pin receivers of one side plate. When the top and bottom lids are not affixed to the collapsible plate assembly, collapsible plate assembly may be manipulated between a collapsed state having a flattened configuration and a deployed state having a rectangular configuration. When in the deployed state, the collapsible plate assembly has a top opening and a bottom opening, wherein the top lid is configured to cooperate with the collapsible plate assembly to cover the top opening (e.g., close the top opening from above), and the bottom lid is configured to cooperate with the collapsible plate assembly to cover the bottom opening (e.g., close the bottom opening from below).
In certain embodiments, the top lid is configured to pivot by a first hinge joint along an upper edge of one end plate, and the bottom lid is configured to pivot by a second hinge joint along a lower edge of the opposing end plate. Additionally, the top lid may include a clasp configured to engage a clasp receiver associated with the opposing end plate, and the bottom lid may include a clasp configured to engage a clasp receiver associated with the one end plate. Each clasp may include a pivotal linkage that permits a degree of movement between clasp and an associated lid, to enable the clasp to be moved into positions to selectively engage or disengage a clasp receiver. In certain embodiments, clasp receivers may be prefabricated (e.g., by stamping, machining, casting, etc.) and joined to an end plate by any suitable technique such as riveting, screwing, brazing, welding, or the like.
In certain embodiments, some or all of the end plates, side plates, and lids may be fabricated of a metal or metal alloy (e.g., aluminum, titanium, stainless steel, etc.), with hard anodized aluminum being particularly preferred due to its light weight, relatively low cost, and corrosion resistance. Suitable methods that may be employed for fabricating the end plates and lids (or portions thereof) include one or more of stamping, die cutting, laser cutting, casting, forging, machining, rolling, bending, and similar techniques known to one skilled in the art.
In certain embodiments, the plates and lids may comprise one or more rib segments to enhance torsional rigidity and bend resistance. Such rib segments may include indentations that extend outward or inward relative to an external surface of a container, and may desirable be formed by pressing (e.g., as part of a stamping operation) or other metal shaping techniques.
In certain embodiments, some or all of the end plates, side plates, and lids may be fabricated of polymeric materials and/or composite materials (e.g., fiberglass, carbon fiber, etc.), optionally being reinforced with fibers or other strength-enhancing materials. In such embodiments, the end plates, side plates, and/or lids may be fabricated by techniques such as injection molding, compression molding, lamination, three-dimensional printing, or the like.
In certain embodiments, a liner is configured to be received within a plate assembly cavity formed by the collapsible plate assembly when in a deployed state. A liner may include an upper face configured to be pressed against a lower surface of the upper lid, and may include a lower face configured to be pressed against an upper surface of the lower lid when a collapsible container is fully assembled in order to provide a water-tight inner cavity of the collapsible container. Such a liner may be fabricated of a polymeric material such as thermoplastic polymer. In certain embodiments, a liner may be fabricated by injection molding or three-dimensional printing by a thermoplastic polymer such as thermoplastic polyurethane (TPU). In certain embodiments, a liner may have an average wall thickness in a range of 0.02 inch to 0.2 inch, or 0.02 inch to 0.1 inch, or 0.03 inch to 0.05 inch. A liner may be received within a plate assembly cavity formed by a collapsible plate assembly in a deployed state. In certain embodiments, the dimensions (e.g., wall thickness) and material or a liner may be selected to permit the liner to be collapsed together with the collapsible plate assembly into a substantially flat configuration. In certain embodiments, a liner includes an upper end face, a lower end face, an upper peripheral skirt that extends downward from a peripheral edge of the top end face and defines an upper skirt recess, and a lower peripheral skirt that extends upward from a peripheral edge of the bottom end face and defines a lower skirt recess. The upper skirt recess and the lower skirt recess may be sized and shaped to receive an upper perimeter and a lower perimeter, respectively, of the collapsible plate assembly. In certain embodiments, the upper skirt recess and the lower skirt recess may each include multiple skirt recess segments that are discontinuous along corners of the liner. In certain embodiments, the liner may have a generally rectangular configuration with open upper and lower ends that are bounded by side walls and end walls of the liner, and the side walls and end walls may be joined along angled inset corners (rather than at right angled corners) to avoid interference with hinge pin receivers disposed at vertical edges of the collapsible plate assembly.
Permitting formation of a water-tight inner cavity within a collapsible container may be particularly important when such a container is to be used for storing and/or transporting moisture-sensitive contents (such as ammunition) to avoid degradation of the contents. Another benefit that may be provided by a liner is reducing noise occasioned by removing ammunition from a collapsible container, which may be particularly desirable in an unsecured (e.g., combat) area subject to presence of enemy combatants.
A container according to an exemplary embodiment will be described in connection with the accompanying drawing figures. While illustrated embodiments may include a liner, it is to be appreciated that in certain embodiments a liner may be omitted.
Each side plate 30A, 30B includes horizontal edges 31A, 31B and vertical edges 32A, 32B, with the vertical edges 32A, 32B each including multiple hinge pin receivers 33A, 33B. Each side plate 30A, 30B further includes rib segments 35A, 35B each having a rounded rectangular shape and oriented horizontally. Each side plate 30A, 30B additionally includes an outer face (e.g., outer face 34A of the second side plate 30A) and an inner face (e.g., inner face 34B′ of the second side plate 30B). To assemble a collapsible plate assembly (such as the collapsible plate assembly 70 shown in
With continued reference to
The bottom lid 40B includes end edges 41B and side edges 42B, with each of the side edges 42B including a peripheral lip 46B. Multiple rib segments 45B and a central recess 47B protrude upward from an inner surface 44B′ of the bottom lid 40B. The central recess 47B is shaped and positioned to generally correspond with the handle recess 47A defined in the top lid 40A, so that any portion of the handle 56, handle rings 57, and/or handle retainers 58 of an underlying top lid 40A may be accommodated within the central recess 47B of the bottom lid when two containers 10 are vertically stacked. The rib segments 45B of the bottom lid 40B may generally correspond in size, shape, and placement to the rib segments 45A of the top lid 40A to cause an upper container to interlock with a lower container (and thereby prevent sliding and provide a more stable stacking arrangement) when two containers 10 are vertically stacked. One end of the bottom lid 40B includes a linkage retainer 48B configured to receive first ends of a pivotal linkage 52B, wherein second ends of the pivotal linkage 52B are coupled to a clasp 50B that is configured to cooperate with the clasp receiver 27B of the second end plate 20B. The pivotal linkage 52B may include two generally C-shaped links, which may be coupled to the clasp 50B along a vertical midpoint thereof to permit the clasp 50B to pivot relative to the pivotal linkage 52B, wherein the pivotal linkage 52B is also configured to pivot relative to the linkage retainer 48B. The clasp 50B includes a gripping end 55B configured to be manipulated by a user, and a hook end 54B that opposes the gripping end 55A, wherein the hook end 54 is configured to be received within at least one recess of the clasp receiver 27B of the second end plate 20B.
The bottom lid 40B includes end edges 41B and side edges 42B, with each of the side edges 42B including a peripheral lip 46B. The bottom lid 40B defines an upper recess 49B between the peripheral lips 46B and the end edges 41B, wherein peripheral portions of the upper recess 49B may receive a bottom end face of a liner and/or an lower perimeter portion of a collapsible plate assembly when the bottom lid 40B positioned to close a lower opening of a collapsible container. Multiple rib segments 45B and a handle recess 47B protrude upward from an inner surface 44B′ of the bottom lid 40B. The handle recess 47B is shaped and positioned to generally correspond with the handle recess 47A defined in the top lid 40A, so that any portion of the handle 56, handle rings 57, and/or handle retainers 58 of an underlying top lid 40A may be accommodated within the handle recess 47B of the bottom lid when two containers 10 are vertically stacked. The rib segments 45B of the bottom lid 40B may generally correspond in size, shape, and placement to the rib segments 45A of the top lid 40A to cause an upper container to interlock with a lower container (and thereby prevent sliding and provide a more stable stacking arrangement) when two containers 10 are vertically stacked. One end of the bottom lid 40B includes a linkage retainer 48B configured to receive first ends of a pivotal linkage 52B, wherein second ends of the pivotal linkage 52B are coupled to a clasp 50B that is configured to cooperate with the clasp receiver 27B of the second end plate 20B. The pivotal linkage 52B may include two generally C-shaped links, which may be coupled to the clasp 50B along a vertical midpoint thereof to permit the clasp 50B to pivot relative to the pivotal linkage 52B, wherein the pivotal linkage 52B is also configured to pivot relative to the linkage retainer 48B. The clasp 50B includes a gripping end 55B configured to be manipulated by a user, and a hook end 54B that opposes the gripping end 55A, wherein the hook end 54 is configured to be received within at least one recess of the clasp receiver 27B of the second end plate 20B.
Although the preceding figures illustrate a collapsible container according to one embodiment, it is to be appreciated that various modifications to a collapsible container may be made within the scope of the accompanying claims.
Unless otherwise expressly stated, it is in no way intended that any method set forth herein be construed as requiring that its steps be performed in a specific order. Accordingly, where a method claim does not actually recite an order to be followed by its steps, or it is not otherwise specifically stated in the claims or descriptions that the steps are to be limited to a specific order, it is in no way intended that any particular order be inferred.
It will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit or scope of the invention. Since modifications, combinations, sub-combinations and variations of the disclosed embodiments incorporating the spirit and substance of the invention may occur to persons skilled in the art, the invention should be construed to include everything within the scope of the appended claims and their equivalents.
This invention was made with government support under Contract Number N4175619C3006 awarded by the Combating Terrorism Technical Support Office (CTTSO). The government has certain rights in the invention.