TECHNICAL FIELD

[0001] The present disclosure relates to a portable shelter. More specifically, the present disclosure relates to an assembly that is readily customizable in size in order to shelter objects such as vehicles, people, or goods, for a short or an extended period of time.

SUMMARY

[0002] According to one embodiment, a portable and adjustable shelter includes a plurality of legs. Each leg has a column base defining a lower surface for contacting an underlying surface, and an upper surface defining a cavity with a first surface feature therein. Each leg also has a first column with a second surface feature configured to engage with the first surface feature within the cavity, wherein the second surface feature is adjustable relative to the first surface feature enabling the first column to be vertically adjusted relative to the column base. Each leg also has a second column configured to attach coaxially with the first column, the second column having a projection extending therefrom. The shelter further includes a roof attached to the plurality of legs, the roof having a pair of truss assemblies configured to connect two of the legs, each truss assembly having an upper surface and a lower surface, the lower surface of each truss assembly defining a plurality of spaced apart receptacles sized to receive the projection of the second column to secure the roof to the legs at various positions.

[0003] According to another embodiment, a portable and adjustable shelter includes a plurality of legs adjustable in height, wherein a portion of the legs define a hollow cavity covered by a plug to enable storage of a substance therein to add weight to the legs, the legs each having a projection at one end. A pair of truss assemblies each connect two of the legs along a length of the shelter, and each truss assembly has a plurality of receptacles facing the legs and configured to receive the projection enabling the legs to connect to the truss assemblies at various distances apart. The truss assemblies have a plurality of notches formed therein. A plurality of beam body members each connect to both truss assemblies within two of the notches. A fabric covers the beam body members and at least a portion of the truss assemblies. BRIEF DESCRIPTION OF THE DRAWINGS

[0004] Figure 1 is a perspective view of a portable shelter according to one embodiment of this disclosure.

[0005] Figure 2 is a perspective view of a placement template for aiding a user in locating components of the portable enclosure for proper alignment and sizing, according to one embodiment.

[0006] Figure 3 A is a perspective view of one of the legs of the portable shelter, according to one embodiment.

[0007] Figure 3B is a cross-sectional view of a column base of one of the legs, according to one embodiment.

[0008] Figure 3C is a cross-sectional view of an attachment rod configured to be housed within the column base of one of the legs, according to one embodiment.

[0009] Figure 3D is a perspective view taken along line D of Figure 3F.

[0010] Figure 3E is an exploded perspective view of an upper portion of a lower column of the leg within line C of Figure 3F, according to one embodiment.

[0011] Figure 3F, is an exploded perspective view of the leg of Figure 3 A, according to one embodiment.

[0012] Figure 3G is a side view of an upper column of the leg, according to one embodiment in which the upper column has a beam hole extending therethrough.

[0013] Figure 3H is a side view of an upper column of the leg, according to an alternative embodiment in which the upper column has a beam hole that extends only partially therethrough.

[0014] Figure 31 is an exploded perspective view of a handle that can be rotatably attached to a lower column of the leg via a pin, according to one embodiment.

[0015] Figure 3 J is a perspective view of a plug insertable into a hole in a lower region of the leg, according to one embodiment. [0016] Figure 4A is a top perspective view of a column beam configured to attach to a pair of legs along a width of the portable structure, according to one embodiment.

[0017] Figure 4B is a bottom perspective view of the column beam of Figure 4A.

[0018] Figure 4C is a cross-sectional view of the column beam taken along line C-C of

Figure 4A.

[0019] Figure 5 is a perspective view of a truss assembly configured to attach a pair of legs along a length of the portable structure, according to one embodiment.

[0020] Figure 6A is a top perspective view of a middle truss body of the truss assembly, according to one embodiment.

[0021] Figure 6B is a bottom perspective view of the middle truss body of Figure 6A.

[0022] Figure 7A is a top perspective view of an end truss body of the truss assembly, according to one embodiment.

[0023] Figure 7B is a bottom perspective view of the end truss body of Figure 7A.

[0024] Figure 8 is a perspective view of an anchor for securing a roof cover to the truss assembly and the column beam, according to one embodiment.

[0025] Figure 9 is a perspective view of an assembled roof structure without a roof cover, with a plurality of roof beam bodies extending along the width of the portable structure, according to one embodiment.

[0026] Figure 10A is a top perspective view of one of the roof beam bodies of Figure 9, according to one embodiment.

[0027] Figure 10B is a cross-sectional view of the roof beam body, taken along line B-B of

Figure 9.

[0028] Figure 11A is a perspective view of a roof cover configured to attach to the roof structure, according to one embodiment. [0029] Figure 1 IB is a partial perspective view of one corner of the roof cover, taken along line A of Figure 11 A.

[0030] Figure 12A is a perspective view of the roof cover covering the roof structure, with part of the roof cover removed to show the underlying structure, according to one embodiment.

[0031] Figure 12B is a partial perspective view of one corner of a vent in the roof, taken along line B of Figure 12A, according to one embodiment.

[0032] Figure 13 A is a perspective view of an assembled portable structure with curtains, according to one embodiment.

[0033] Figure 13B is a partial perspective view of a hook connecting the curtain to the column beam, taken along line A of Figure 13 A, according to one embodiment.

[0034] Figure 13C is a bottom perspective view of a portion of the portable structure with curtains of Figure 13 A.

[0035] Figure 14 is a side view of multiple portable structures assembled end-to-end to create a lengthy single portable structure, according to one embodiment.

[0036] Figures 15 A, 15B, and 15C show perspective views of portable structures with various lengths, according to various embodiments.

[0037] Figures 16A and 16B show side views of various sized portable structures, showing the adjustability in height and width of the columns of the portable structure.

DETAILED DESCRIPTION

[0038] Embodiments of the present disclosure are described herein. It is to be understood, however, that the disclosed embodiments are examples and that other embodiments can take various and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but rather as a representative basis for teaching one skilled in the art to variously employ the embodiments. As those of ordinary skill in the art will understand, various features illustrated and described with reference to any one of the figures can be combined with features illustrated in one or more other figures to produce embodiments that are not explicitly illustrated or described. The combinations of features illustrated provide representative embodiments for typical applications. Various combinations and modifications of the features consistent with the teachings of this disclosure, however, could be desired for particular applications or implementations.

[0039] References to "width" and "length" are made below. These words are used for context only, relative to the orientation illustrated in Figure 1, in which a generally rectangular structure is shown with one side being a "length" and another shorter side being a "width." Multiple individual structures can be attached side-by-side along their length sides, as will be described with reference to Figures 14-15, which increases the overall "width" of the structure.

[0040] Referring to Figure 1, a portable shelter 1 is illustrated according to one embodiment.

As will be described below, the portable shelter 1 is a customizable and modular structure configured to shield various sized objects from the environment. The portable shelter shown in Figure 1 is a single-module embodiment in which four legs 5 at four respective corners hold a roof above the underlying surface. This single-module portable shelter can vary in height or width to accommodate the size of the objects being shielded. In other embodiments described below, the portable shelter can also be attached with other modules, and other multiple-module length embodiments to create multiple-module embodiments.

[0041] Figure 1 shows many of the main components of the portable shelter that are shown individually in subsequent figures. The portable shelter rests on a placement pattern assembly or template 10 that will be described in further detail with reference to Figure 2 below. Each leg 5 or column includes an individual attachment rod 20 (Figures 3C, 3F), a column base 30, a lower column 40, and an upper column 50. Along the width of the portable shelter, a column beam 60 connects two of the legs. Along the length of the portable shelter, a truss assembly that includes a middle truss body 70 and a pair of end truss bodies 80 connects two of the legs. The truss includes a middle truss body 70 connected to and flanked by a pair of end truss bodies 80. Roof beam body members 90 (Figure 9) extend parallel to the column beam 60 at spaced intervals along the length of the portable shelter. These roof beam body members 90 are support members for an overlying roof cover 100. [0042] In some embodiments, the components shown in Figure 1 are created through rotational molding or injection molding, although thermal molding or other fabrication techniques can be used. The components can be made of plastic, such as polypropylene. In one embodiment, the components such as the column bases 30, lower columns 40, and upper columns 50 are made of a thermoplastic polymer, such as acrylonitrile butadiene styrene. The components typically will have a wall thickness of approximately 0.125 to 0.1875 inches. In other embodiments, the components are not made from plastic, but rather from fiberglass or metal.

[0043] Each of the main components of Figure 1 is described in more detail below. These main components are also shown in isolation in various figures.

[0044] The portable shelter 1 can be positioned on the ground according to its relationship to the placement pattern 10. The placement pattern has cut-outs on its sides for different locations to match with the legs 5 of the shelter 1, providing the user with a template for how far to space the legs. The placement pattern 10 has a pair of cut-outs marked "0 feet" at slot aligners for placing two of the column bases 30. The placement pattern 10 has a plurality of additional cut-outs marked "7 feet," "8 feet," "9 feet," and "10 feet" at respective pairs of aligners formed therein. These aligners guide a user in aligning two more of the column bases 30 for a desired length of the portable shelter 1.

[0045] Referring to Figure 2, another embodiment of aligners is shown. The aligners have a pair of surface features 14 that are sized according to the size of the bottom of the column base 30. A user can place a column base 30 against the surface features. A pair of aligners are spaced apart by a spacer 11. The spacer 11 has a central fastening feature 13 A to fasten two parts of the spacer 11 together. The spacer 1 1 also has a plurality of plurality of additional surface features, such as openings 13B, 13C, 13D, and 13E. These openings are configured to receive a corresponding projection extending from the aligners such that the user can select a desired length of the shelter 1. For example, if the user wishes to have a length of seven feet (the shortest available length in this embodiment), the holes 13B can engage with the projection in the aligner to create a seven -foot length between the pairs of legs 5 to define the length of the shelter 1.

[0046] Figure 3A shows a perspective view of one of the legs 5 in an assembled state, and

Figures 3B-3F show the various components of the leg 5. Each leg 5 includes a column base 30 which tapers inward in a direction away from the underlying surface. The tapered outer surface of the column base 30 defines a plurality of slots 30A extending at least partially through the thickness of the column base 30. The slots 30A are formed such that they have a flat vertical surface traveling generally up and down, in the direction of the height of the structure. This vertical flat surface provides a nesting region for the curtains that will be described below, as well as any signs, boards, or other structural pieces that may be desired to stretch across the length or width of the structure between two of the legs 5.

[0047] Referring to Figures 3B and 3C, a generally cylindrical opening 34 is defined within the column base 30. The opening 34 can include either male or female threading about the circumference of the cylinder. The opening 34 is sized and configured to receive the attachment rod 20 for attaching the lower column 40 to the column base 30. The attachment rod 20 is also generally cylindrical and has an outer diameter slightly smaller than the inner diameter of the cylindrical opening 34. The attachment rod 20 can have a hollow interior with an inner surface that defines either male or female threading 24. The threading 24 can engage with corresponding threading 41 of the lower column 40, discussed further below. In one embodiment not shown, one or more flanges can extend from the outer surface of the attachment rod 20 at a lower region thereof. The flange can be sized and configured to engage with a corresponding cavity or pocket at the bottom of the column base 30. This allows the bottom of the attachment rod 20 to be coplanar with the bottom of the column base 30 while both rest on the underlying surface.

[0048] Referring to Figure 3D, the column base 30 defines an indent 30B located within the slot 30A. The indent 30B is sized and configured to receive an anchoring feature for anchoring the curtain (which is described below) or other board or structural member that fits within the groove 30A. A filler cap 32A or plug is sized and configured to be received within a corresponding hole 33 that is formed within the column base 30. The filler cap 32A can be removed or otherwise disengaged from the column base, exposing the hole 33. This allows the user to fill the interior of the column base 30 with water, sand, or other substance. The user can then plug the hole 33 with the filler cap 32A, entrapping the substance within the column base 30. The column base 30, when filled with the substance, can weigh the entire structure 1 down to inhibit movement of the structure due to wind, etc. To make the structure portable again, the user can drain or otherwise remove the substance from the hole 33. The filler cap 32A can include a step with a flange that is larger than the hole 33 and disposed within the interior of the column base 30 such that the filler cap 32A, when unplugged from the hole 33, can still remain attached to the column base 30. [0049] The filler cap 32A is shown in perspective in Figure 3J. The filler cap 32A has a threaded or ribbed head to engage with corresponding surface features within the hole 33. A set of wires 32B extend longitudinally from the head, and end at an end region 32C. The end region of the wire at 32C is wider than the diameter of the hole 33 such that the wire can be retained within the hole 33 even when the filler cap 32A is removed. In one embodiment, the wire is plastic.

[0050] Referring to Figures 3E and 3F, additional detail of a portion of the lower column 40 is shown. The lower column 40 includes threading 41 to engage with the threading 24 of the attachment rod 20. In this fashion, the lower column 40 can slide into the interior of the attachment rod 20 within the column base 30 and screw or fasten with the attachment rod. The lower column 40 is secured to the attachment rod 20 via a threading engagement at 24 and 41.

[0051] The lower column 40 also includes a pair of opposing handle recesses 42. A pair of handles 43A can be rotatably attached to the lower column 40 via a pin 43B, and can be stored within the handle recess 42 flush with the lower column. This allows the user to pull the handles 43A away from the lower column and grasp the handles 43A while turning the lower column 40 relative to the attachment rod 20 to screw and unscrew the lower column 40 to the attachment rod 20.

[0052] The lower column 40 also includes a projection 44 extending coaxial from the lower column 40. The projection 44 is sized with a slightly smaller diameter than that of the lower column 40. The projection is configured to fit within a recess or pocket on the bottom side of the upper column 50. The upper column 50 slides over the lower column 40 via the projection 44. The upper column 50 also defines a beam hole 51 sized to receive the column beam 60 that extends between and connects two of the legs 5. The upper column 50 also has a connector 52 extending therefrom that is sized to be received within a receptacle 85 of an end truss body 80, as will be described below.

[0053] In another embodiment, the beam hole 51 only extends partially (e.g., halfway) through the upper column 50 for a certain number of legs 5. This is shown in Figure 3H, in which the beam hole 51 is filled at one end, as indicated by surface 51 A. If the entire structure is multiple sets of legs long (like in Figure 14), the legs 5 that are on the outermost corners can have the beam holes 51 only extend partially therethrough, facing the interior of the structure. [0054] Figure 3F shows an exploded perspective view of the components that make up each leg 5. In short, the attachment rod 20 is placed within and engages the column base 30, which can be filled with water, sand, etc. The lower column 40 screws to the column base, and the handles 43 A can assist in doing so. The upper column 50 can then attach to the lower column 40 via the projection 44.

[0055] Figure 31 shows the handles 43A in perspective, with the associated pin 43B. In assembly, the pin 43B extends through a corresponding hole 43C in the handle 43A to rotatably connect the handle 43 A to the lower column 40.

[0056] Figures 4A and 4B show various perspective views of the column beam 60. The column beam 60 connects two legs 5 along the width of the portable structure 1, as shown in Figure 1. To do so, the column beam 60 includes a pair of notches 62 extending from opposing end surfaces of the column beam 60. The notches 62 are sized to be received in the corresponding beam holes 51 of the upper column 50.

[0057] Figure 4C is a cross-sectional view taken along line C-C of Figure 4A. As shown in

Figures 4B and 4C, the underside of the column beam 60 includes a longitudinal groove 64A formed therein. The groove 64A is configured to act as a guide for curtains or other such covers that can connect to the column beam 60 and cover the space between the two connected legs 5, as is shown in Figure 13B described below.

[0058] Figure 5 illustrates a truss assembly 68 that includes a middle truss body 70 and a pair of end truss bodies 80 on either side of the middle truss body 70. It should be understood that more or less bodies can be used rather than the three bodies shown in Figure 5. The assembled truss assembly 68 connects two legs 5 along the width of the portable structure 1.

[0059] Figures 6A and 6B illustrate perspective views of the middle truss body 70. The middle truss body has one or more notches 71 formed therein on the upper side of the body 70 to receive roof beam bodies 90, as described below. On either side of the middle truss body 70 is a projection 72 which is configured to slide within and be received by a corresponding slot or guide 82 formed in the side of the end truss body 80.

[0060] The middle truss body 70 also includes a plurality of apertures 74 formed therein.

The apertures 74 do not need to pass entirely through the body 70, but must be at least deep enough to properly receive an anchor 73 (described below). The apertures 74 can includes screw threads to engage with corresponding screw threads of the anchor 73. In an alternative embodiment, dimples are provided instead of apertures, and the anchors can screw into the dimples themselves to create apertures during screwing.

[0061] The underside of the middle truss body 70 also includes a longitudinally extending groove 76 for attaching a curtain or other type of wall structure, similar to the groove 64A of the column beam 60.

[0062] Figures 7A and 7B illustrate perspective views of one of the end truss bodies 80.

Similar to the middle truss body 70, the end truss body 80 includes one or more notches 81 to receive the roof beam bodies 90. One end of the end truss body 80 also includes the guide 82 formed therein to receive the projection 72.

[0063] Similar to the middle truss body 70, the end truss body also has a plurality of apertures 84, each configured to receive one of the anchors, like the apertures 74.

[0064] Also similar to the middle truss body 70, the underside of the end truss body includes a longitudinally extending groove 86 formed therein for attaching a curtain or other type of wall structure. Also on the underside are a plurality of receptacles 85A, 85B, 85C, and 85D at spaced apart locations along the length of the body 80. These receptacles 85A-85D are sized and configured to receive the connector 52 of the upper column 50. The spaced-apart nature of the receptacles provides the user with the ability to customize how far inset the legs 5 should be positioned with respect to the outer boundaries of the truss assembly 68 and roof. In other words, the distance between the legs 5 can be customized along the length of the portable structure 1 while retaining the overall profile and size of the roof.

[0065] Figure 8 illustrates the anchor 73 in a perspective view. The anchor 73 can include a screw for screwing into the apertures 74, 84. The anchor 73 has a boss 75 that has a diameter larger than the apertures 74, 84 such that the boss 75 does not secure with in the apertures 74, 84. The boss 75 provides separation between the outer surface of the truss assembly 68. The surface area on the boss 75 provides an attachment surface for a cord 106 that will be described below. A washer 77 or flange provides an end surface and defines the outer boundary of the boss 75 to keep the cord 106 between the washer 77 and the truss assembly 68. [0066] Figure 9 illustrates a pair of truss assemblies 68 with a plurality of roof beam bodies

90 extending there-between, in a direction of the width of the portable structure 1. Each roof beam body 90 secures within the notches 71 of the center middle truss body 70 or the notches 81 of the end truss bodies 80. The roof beam bodies 90 provide a secure connection between both truss assemblies 68, and also provide a support for a roof cover 100 to be placed over the assembly.

[0067] Figure 10A shows a single roof beam body 90 in isolation, and Figure 10B is a cross- sectional view of one roof beam body 90. The roof beam body 90 includes a pair of projections 92 that fit into the corresponding notches 71 or 81. Each projection has a space 93 between a part of the projection 92 and the roof beam body 90 to allow for clearance. A plurality of apertures 95 are provided for more of the anchors 73 to be attached, as described above. As shown in the embodiment of Figure 10B, the apertures 95 do not extend all the way through the roof beam body 90. Also shown in Figure 10B, a pair of opposing apertures 95 can be provided on opposing sides of the roof beam body 90 to allow anchors 73 to be attached on either side of the roof beam body 90.

[0068] Figure 11A shows a roof cover 100 that can be placed over the connected roof beam bodies 90 and the truss assemblies 68. Figure 1 IB shows a zoomed-in view of one of the corners of the roof cover 100 and its attachment to the truss assembly 68 and column beam 60. Figure 12A shows a perspective view of the roof cover 100 with half of the roof cover 100 removed to show the underlying structure, and Figure 12B shows a connection of a vent 103A and vent cover 103B above a vent hole 103.

[0069] Referring to Figures 11 A-12B, the roof cover 100 can be made of a canvas fabric, or any other suitable fabric that is weather (e.g., rain, snow, etc.) resistant, but also flexible and bendable to give and move in response to wind. The roof cover 100 can include one or more vent holes 103, allowing air to pass through the roof cover 100. Each vent hole 103 can be covered by a vent 103A that is fixed (e.g., sewn, welded, attached) at one end of the vent hole 103 but not directly fixed at the other end. This allows the vent 103 A with the ability to pivot with respect to the roof cover 100 to selectively "open" and "close." A vent cover 103B is also provided, being attached to the vent 103A via cords 103C. In one embodiment, the vent 103A is breathable to allow air to flow therethrough. In another embodiment, the vent is a solid material such as plastic or vinyl with less breathability, inhibiting or preventing air from flowing therethrough. [0070] As previously described, a plurality of anchors 73 are affixed to the truss assembly 68 and column beams 60. The roof cover 100 is attachable to the truss assembly 68 and column beam 60 by a cord 106 that can be stretched to extend underneath the anchors 73. Metal or plastic grommets 105 surround corresponding apertures in the roof cover 100 where the cord 106 to extend through the roof cover 100. In one embodiment, a plurality of cords are used, each attached at both ends to the roof cover 100 at different locations. In another embodiment, a single cord is used about the entire roof cover 100.

[0071] Figure 13 A shows a fully-assembled portable structure 1 with curtains attached thereto for additional shelter. For example, the ends of the structure 1 can each be equipped with an end curtain 110. The end curtain 110 is connected to the column beam 60 via the grooves on the bottom of the column beam 60. For example, as shown in Figure 13B, the end curtain 110 is attached to the column beam 60 by hooks 115 that are slideable within the groove 64A of the column beam 60. This allows the end curtain 110 to be slid open and shut. End curtain holders 110A can be placed at various heights along each leg to assure the ends of the end curtains 110 remain attached or at least near the leg.

[0072] Similarly, side curtains 1 12 are provided that can be attachable to the truss assembly

68 via hooks within the grooves 76, 86. Side curtain holders 112A are also provided to attach the ends of the side curtains 112 to the legs, in similar fashion as the end curtain holders 110.

[0073] The present disclosure is not limited to only four legs with a single roof. For example, Figure 14 illustrates an embodiment in which eight portable structures 1 are attached side- by-side along each structure's length. With the width of each structure being aligned side-by-side, the new "width" of the overall structure is eight times as wide as a single structure. In this embodiment, eight separate roof covers can be provided, but only 18 legs; each of the roof covers 100, except the covers at the end, can be attached to an anchor 73 of adjacent truss assembly 68 via the cords. This enables a cord from one roof cover 100 to interlock with anchors of a truss assembly 68, interlocking the structures into a single structure.

[0074] The size of each individual portable structure is not intended to be limited to the embodiment of Figure 1. For example, Figures 15 A, 15B, and 15C show various sizes of portable structures with varying number of legs. For example, Figure 15A shows a single portable structure similar to that shown in Figure 1. Figure 15B shows an additional module placed side-by-side along the length of the structures. This is done by adding more column beams 60, truss assemblies 68, and legs. In some embodiments, such as the embodiment in Figures 15A-15C, a single roof cover 100 can be provided over more than four legs.

[0075] Figures 16A and 16B are provided to illustrate the customization of the portable structures 1. The portable structures can individually vary in length and height. To modulate the length of the portable structure 1, the end truss bodies 80 are provided with a plurality of receptacles 85A-85D to receive the upper column 50, as illustrated in Figure 7B. To modulate the height of the portable structure 1, the lower columns 40 can be adjusted in height relative to the attachment rod 20 by screwing one direction or the other, for example, as illustrated in Figures 3C and 3F.

[0076] The portable structure disclosed herein can be used to shelter vehicles ranging from motorcycles, bikes, ATVs, to cars, vans, trucks, and boats. Since the user is able to fill the legs with a substance for added weight, the structure can provide a long-lasting, reliable, wind-resistant, seasonal or semi-permanent structure for sheltering objects.

[0077] While exemplary embodiments are described above, it is not intended that these embodiments describe all possible forms encompassed by the claims. The words used in the specification are words of description rather than limitation, and it is understood that various changes can be made without departing from the spirit and scope of the disclosure. As previously described, the features of various embodiments can be combined to form further embodiments of the invention that may not be explicitly described or illustrated. While various embodiments could have been described as providing advantages or being preferred over other embodiments or prior art implementations with respect to one or more desired characteristics, those of ordinary skill in the art recognize that one or more features or characteristics can be compromised to achieve desired overall system attributes, which depend on the specific application and implementation. These attributes can include, but are not limited to cost, strength, durability, life cycle cost, marketability, appearance, packaging, size, serviceability, weight, manufacturability, ease of assembly, etc. As such, to the extent any embodiments are described as less desirable than other embodiments or prior art implementations with respect to one or more characteristics, these embodiments are not outside the scope of the disclosure and can be desirable for particular applications.