Patent Publication Number: US-2023151633-A1

Title: Portable multi-hinged shelter

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application claims the benefit of U.S. Provisional Application No. 63/280,027, filed Nov. 16, 2021, entitled “Multi-hinged Fishing Shelter,” the disclosures of which, including all attached documents, are incorporated herein by reference in their entirety for all purposes. 
    
    
     FIELD OF THE INVENTION 
     The present invention is largely directed to a portable multi-hinged shelter for attachment to and operation with vehicles generally equipped with an open cargo bay or bed, such as a truck, a utility terrain vehicle (UTV), an all-terrain vehicle (ATV), or equivalent. More particularly, the portable multi-hinged shelter offers automated operation for expansion to form an enclosure for occupancy by multiple individuals and storage of cargo and the like and contraction to facilitate convenient self-storage on the vehicle for effectual transport to varying locations or destinations. 
     BACKGROUND OF THE INVENTION 
     Portable shelters or enclosures are often utilized in recreational activities such as ice fishing and camping to protect the enthusiast from the cold and sometimes harsh climatic conditions. Ice fishing, for example, is a popular and favorite outdoor sport or hobby held typically in northern regions of many countries with cold climatic conditions, often necessitating the need for some form of protective enclosure or shelter. Ice fishing in general involves catching fish from atop of an ice sheet formed on a body of water. Access to the aquatic environment that underlies the ice sheet is mainly achieved by drilling or cutting a hole through the ice sheet of sizable dimension to allow ample room for adequately accommodating passage of fish line, a fish catch of varying size and weight, and ancillary fishing equipment like that of a sonar fish finder without undue hinderance and difficulty. Some ice fishing enthusiasts or anglers desirably participate in the sport within the open environment so as take in the fresh air, while others may preferably reside within the comforts of an enclosure to protect them from the elements and harsh cold conditions. 
     Enclosures directed for this purpose may vary in type and size, with some being of the semi-permanent type fabricated from metal or wood to resemble a structured shed or shack and optionally fitted with wheels or skids to fulfill relocation relatively about the ice sheet as may be desired from time to time, whereas other types of enclosures may be extensively portable in nature. Portable shelters that often fulfill the enthusiastic angler&#39;s requirements are typically inexpensive, can accommodate one or more persons, albeit generally limited in number, lightweight for transport to and from the body of water, and incorporate features for quick assembly and disassembly so that one may desirably relocate the shelter coincident to the movement of feeding fish for attainment of the ultimate catch. 
     The construct of and features associated with portable fishing shelters are recognized in the art to vary by some degree, but are generally represented by three basic design types: a pop-up tent, a rigid sled incorporating a flip-over tent, and a flip-over tent connectively adapted to a utility terrain vehicle (UTV) or equivalent. 
     As considered the most basic form of a portable fishing shelter, the pop-up tent fishing shelter is usually featured with similar components as one would find for a tent used in camping, absent an integrated floor structure. This type of the portable shelter typically includes a light-weighted assembly of flexible poles hingedly mounted to and extending from hubs to expand outwardly and forcibly act against an all-encompassing, water-proof fabric skin to rigidly form a structured enclosure suited for occupancy and containment of a minimal amount of fishing gear and the like. Although pop-tent shelters are rather inexpensive and light-weighted for carry and assembly by an individual fishing angler, they can be cumbersome in fulfilling the capability of transporting the desirable amount of fishing gear with that of the pop-up tent, in addition to the difficulty associated with setup, particularly in relation to embedding the requisite anchors within the ice sheet and connecting lines to structural aspects of the pop-up tent to consummate the assembly. 
     In an extended version or variation of the pop-up tent fishing shelter described above, the rigid sled with the flip-over tent type of fishing shelter incorporates within the structure of the sled a pair of sideward anchoring plates that offers mounting of one or more swinging canopy supports that selectively connect in part to an outer, waterproof skin and pivotally rotate relative to the anchoring plate to spatially expand and relocate the outer skin from within the confines of the sled to structurally form an enclosure for occupancy and containment of a limited amount of fishing gear. Like the pop-up tent fishing shelter, the canopy supports inherently possess capabilities to extend outwardly and forcibly act against the outer skin and lock in place to consummate the assembly. Although this type of fishing shelter conveniently offers onboard storage of the outer skin and associated canopy supports to admirably advance aspects portability for transport to the body of water and relocation relatively about the ice sheet at moment&#39;s notice, there is a tendency for premature wear and tear of operative components and hardware as well as calamitous opportunities for damaging fishing gear and sensitive equipment due to traversing over rough sheets of ice and mounds of snow, particularly if the sled is being transported behind a moving vehicle like that of a snowmobile or UTV and the like. Additionally, this type of fishing shelter, like that of the pop-tent type, is spatially limited for occupancy and storage of fishing gear, can be difficult for one to manage setup during adverse climatic and windy conditions, and with due consideration of its weight and overall bulkiness and sizable dimension, can be problematic for the individual user to load and unload the fishing shelter respectively into and from the vehicle, which, on most occasions, necessitates use of a truck or an equivalent type of vehicle offering sizable holding capacity. 
     Like the two previously described portable fishing shelters, the flip-over tent for UTV&#39;s utilizes a plurality of flexible canopy supports and an attachable stretchable fabric skin capable of being attached to and expanded outwardly from the UTV to form an enclosure, generally offering a minimal footprint with limited overall spatial capacity for comfortably accommodating multiple anglers and fishing gear. As with most designs of this type, the flexible canopy supports and attachable fabric skin typically collapse or fold together to attain a level of compactness for convenient storage within the spatial confines of a cargo bay or bed of the UTV, which in turn adversely limits the vehicle&#39;s onboard storage capacity for carrying fishing gear and ancillary necessities. Although this type of portable fishing shelter may possess practicality and convenience for most anglers, there still remains unresolved issues of utilizing flexible canopy supports that are inherently difficult to manage during adverse, climatic conditions and are prone to breakage. Furthermore, inadvertent jarring of the vehicle during travel and snow and ice unwantedly accumulating within the bed of the UTV may unduly compromise vital operating components of the flip-over tent as well as fishing gear that may accompany transport therewith. 
     Accordingly, there remains a need for a portable multi-hinged shelter that is adaptable for use with most vehicle types having an open cargo bay or bed and incorporates automated and structural components for readily forming a structural enclosure that sufficiently and comfortably accommodates one or more individuals and accompanying gear and attains a level of compactness for onboard storage on the vehicle without unduly compromising the vehicle&#39;s overall spatial capacity to stow and transport ancillary necessities and items typically relating to an outdoor excursion. 
     BRIEF SUMMARY OF THE INVENTION 
     In order to overcome the numerous drawbacks apparent in the prior art, a portable multi-hinged shelter has been devised for readily attaching to and conjunctively operating with a variety of vehicle types that generally incorporate an open cargo bay or bed, such as a truck, a utility terrain vehicle (UTV), an all-terrain vehicle (ATV), or equivalent. 
     It is an object of the present invention to provide a portable multi-hinged shelter that includes structural components operating conjunctively with powered linear actuators to readily fulfill expansion of an attachable fabric skin to form a protective enclosure for occupancy of one or more individuals and storage of accompanying gear and ancillary necessities, while equally possessing the capabilities to readily contract or fold together to attain a level of compactness for transport. 
     It is a further object of the present invention to provide a portable multi-hinged shelter that retains the onboard storage capacity of the vehicle so as adequately accommodate storage of accompanying gear and ancillary necessities without unduly compromising the comfort of passengers situated within the vehicle. 
     It is yet another object of the present invention to provide a portable multi-hinged shelter that is relatively simple in terms of design and construction and fabricated from corrosion resistant materials to sustain long-term use and operation in harsh climatic conditions. 
     It is yet another object of the present invention to provide a portable multi-hinged shelter that offers stowable bench seating for advancing comfort to individuals and ample storage capacity within the formed enclosure for immediate, convenient access to accompanying gear and ancillary equipment. 
     It is yet another object of the present invention to provide a portable multi-hinged shelter that consists of modular components for readily effecting repair and replacement of damaged or failed components. 
     It is a further object of the present invention to provide a portable multi-hinged shelter that is capable of being held within the height and width of the vehicle&#39;s dimensional relationship while in a folded, compact arrangement so as to afford unhindered travel into and out of a trailer, a garage, or other forms of storage accommodations. 
     In accordance with the present invention, a portable multi-hinged shelter has been devised to comfortably house one or more occupants and fulfill convenient and accessible storage of accompanying gear during outdoor excursions and like activity, the portable multi-hinged shelter includes a box frame mountably situated atop of sidewalls of an open cargo bay of a transport vehicle and connecting to a moveable frame assembly by way of a supportive wind wall that equally connects to a lower wind wall, the box frame further includes provisions for storage of items on one or more shelf platforms while maintaining a sufficient amount of loading capacity of the cargo bay and permits attachment of a secondary shelter shell for forming a protective enclosure, the moveable frame assembly further includes primary and secondary canopies and a ground brace that are individually capable of pivotal movement and permit attachment of a primary shelter shell, whereby multiple pairs of linear actuators connecting to and interacting with select structural aspects of the supportive wind wall and moveable frame assembly yields automated expansion and contraction of the moveable frame assembly respectively for occupancy and convenient transport alongside the vehicle without unduly hindering the vehicle&#39;s safe operation. 
     Other objects, features, and advantages of the present invention will become apparent in the following detailed description of the preferred embodiments thereof when read in conjunction with the accompanying drawings in which like reference numerals depict the same parts in the various views. 
    
    
     
       BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS 
       A preferred embodiment of the present invention will now be described by way of example with reference to the accompanying drawings, in which: 
         FIG.  1    is a rear perspective view of the preferred embodiment of the present invention illustrating a primary shelter shell joined to a secondary shelter shell collectively covering a box frame and moveable frame assembly and being attached to a vehicle; 
         FIG.  2    is a front perspective view of the preferred embodiment of the present invention illustrating a primary shelter shell joined to a secondary shelter shell collectively covering a box frame and a moveable frame assembly and being attached to a vehicle; 
         FIG.  3    is a bottom perspective view of the preferred embodiment of the present invention illustrating a primary shelter shell connecting to a secondary shelter shell operably attached to a vehicle; 
         FIG.  4    is a rear elevational view of the preferred embodiment of the present invention illustrating a primary shelter shell having an extending top flap and a pair of elongate sideward flaps; 
         FIG.  5    is a top perspective view of the preferred embodiment of the present invention illustrating a box frame mounted to an open cargo bay of a vehicle and connecting to moveable frame assembly in a folded, compact position; 
         FIG.  6    is a rear perspective view of the preferred embodiment of the present invention illustrating a box frame mounted to an open cargo bay of a vehicle and connecting to a moveable frame assembly presented in expanded, open form; 
         FIG.  7    is a front elevational view of the preferred embodiment of the present invention illustrating a movable frame assembly in a folded, compact position; 
         FIG.  8    is a side elevational view of the preferred embodiment of the present invention illustrating a movable frame assembly in a folded, compact position and connecting to a box frame; 
         FIG.  9    is a top perspective view of the preferred embodiment of the present invention illustrating detail of joining upper and lower horizontal members to a corner post by a three-way connector; 
         FIG.  10    is a rear perspective view of the preferred embodiment of the present invention illustrating of a corner cap fitted to a three-way connector; 
         FIG.  11    is a front perspective view of the preferred embodiment of the present invention illustrating of a corner cap fitted to a three-way connector having accessible openings; 
         FIG.  12    is a front perspective view of the preferred embodiment of the present invention illustrating a three-way connector having accessible openings and alignment members; 
         FIG.  13    is a rear perspective view of the preferred embodiment of the present invention illustrating of a corner cap having a pair of outward pins and a pair of inversed grooved slides; 
         FIG.  14    is a side elevational view of the preferred embodiment of the present invention illustrating of a corner cap having a pair of outward pins; 
         FIG.  15    is a top perspective view of the preferred embodiment of the present invention illustrating a box frame having upper and lower horizontal members connecting to corner posts; 
         FIG.  16    is a side elevational view of the preferred embodiment of the present invention illustrating a box frame having upper and lower horizontal members connecting to corner posts; 
         FIG.  17    is a top perspective view of the preferred embodiment of the present invention illustrating a box frame positioned atop of sidewalls of and mounted to an open cargo bay of a vehicle; 
         FIG.  18    is a rear elevational view of the preferred embodiment of the present invention illustrating a box frame mounted atop of an open cargo bay of a vehicle; 
         FIG.  19    is a top plan view of the preferred embodiment of the present invention illustrating a moveable frame assembly presented in expanded form and connecting to a box frame configured with a shelf platform; 
         FIG.  20    is a top plan view of the preferred embodiment of the present invention illustrating a shelf platform; 
         FIG.  21    is a bottom perspective view of the preferred embodiment of the present invention illustrating a shelf platform configured with cap screws and track nuts; 
         FIG.  22    is a side elevational view of the preferred embodiment of the present invention illustrating a turnbuckle having connective hooks configured to engage eye bolts; 
         FIG.  23    is a top perspective view of the preferred embodiment of the present invention illustrating a turnbuckle having connective hooks configured to engage eye bolts; 
         FIG.  24    is a top perspective view of the preferred embodiment of the present invention illustrating an alignment plate having a top planar element integrally connecting to a sideward planar element; 
         FIG.  25    is a front elevational view of the preferred embodiment of the present invention illustrating an alignment plate designated for use with a pair of cap screws and track nuts; 
         FIG.  26    is a front perspective view of the preferred embodiment of the present invention illustrating a supportive wind wall having a pair of upright supports connecting to a lower support member; 
         FIG.  27    is a top perspective view of the preferred embodiment of the present invention illustrating a supportive wind wall having a pair of upright supports connecting to a lower support member; 
         FIG.  28    is a top perspective view of the preferred embodiment of the present invention illustrating a lower wind wall having lower and upper horizontal beams respectively connecting to a pair of outward vertical pillars and a pair of end supports; 
         FIG.  29    is a side elevational view of the preferred embodiment of the present invention illustrating an anchoring support pivotally connecting to a vertical member of a lower wind wall; 
         FIG.  30    is a rear elevational view of the preferred embodiment of the present invention illustrating a lower wind wall having lower and upper horizontal beams respectively connecting to a pair of outward vertical pillars and a pair of end supports; 
         FIG.  30 A  is a partial enlarged view of the preferred embodiment of the present invention illustrating a surface-mounted pivot bracket assembly connecting to an anchoring support and a vertical member collectively associated with a lower wind wall; 
         FIG.  31    is a top perspective view of the preferred embodiment of the present invention illustrating partial sections of a primary canopy pivotally connecting to a sideward support of a ground brace; 
         FIG.  32    is a top plan view of the preferred embodiment of the present invention illustrating partial sections of a primary canopy pivotally connecting to a sideward support of a ground brace; 
         FIG.  33    is a front perspective view of the preferred embodiment of the present invention illustrating a corner brace having a triangular frame and elongate openings; 
         FIG.  34    is a bottom perspective view of the preferred embodiment of the present invention illustrating a corner brace adaptably fitted with cap screws connecting to track nuts; 
         FIG.  35    is a side elevational view of the preferred embodiment of the present invention illustrating a corner brace adaptably fitted with cap screws connecting to track nuts; 
         FIG.  36    is a side elevational view of the preferred embodiment of the present invention illustrating a moveable frame assembly presented in expanded form and connecting to a box frame associatively mounted to an open cargo bay of a vehicle; 
         FIG.  37    is a top perspective view of the preferred embodiment of the present invention illustrating a primary canopy having a pair of sideward members connecting to a cross member; 
         FIG.  38    is a top plan view of the preferred embodiment of the present invention illustrating a primary canopy having a pair of sideward members each connecting to a shortened arm; 
         FIG.  39    is a top perspective view of the preferred embodiment of the present invention illustrating a secondary canopy having a pair of sideward members connecting to a cross support; 
         FIG.  40    is a front elevational view of the preferred embodiment of the present invention illustrating a secondary canopy having a pair of sideward members connecting to a cross support and reinforced with corner braces; 
         FIG.  41    is a bottom perspective view of the preferred embodiment of the present invention illustrating a ground brace having a pair of sideward supports connecting to a cross member; 
         FIG.  42    is a side elevational view of the preferred embodiment of the present invention illustrating a ground brace having a pair of sideward supports connecting to a cross member; 
         FIG.  43    is a side elevational view of the preferred embodiment of the present invention illustrating a first linear actuator designated for connection to a supportive wind wall and a moveable frame assembly; 
         FIG.  44    is a rear elevational view of the preferred embodiment of the present invention illustrating a first linear actuator designated for connection to a supportive wind wall and a moveable frame assembly; 
         FIG.  45    is a top perspective view of the preferred embodiment of the present invention illustrating a second linear actuator designated for connection to a sideward arm of a moveable frame assembly and a primary canopy; 
         FIG.  46    is a bottom perspective view of the preferred embodiment of the present invention illustrating a second linear actuator designated for connection to a sideward arm of a moveable frame assembly and a primary canopy; 
         FIG.  47    is a top perspective view of the preferred embodiment of the present invention illustrating a primary shelter shell joining to a secondary shelter shell; 
         FIG.  48    is a front elevational view of the preferred embodiment of the present invention illustrating a primary shelter shell joining to a secondary shelter shell; 
         FIG.  49    is a side elevational view of the preferred embodiment of the present invention illustrating a primary shelter shell joining to a secondary shelter shell; 
         FIG.  50    is a bottom perspective view of the preferred embodiment of the present invention illustrating a top-rearward panel of a primary shelter shell; 
         FIG.  51    is a rear elevational view of the preferred embodiment of the present invention illustrating a top-rearward panel of a primary shelter shell and having an integrated rearward access door; 
         FIG.  52    is a top perspective view of the preferred embodiment of the present invention illustrating a top-rearward panel of a primary shelter shell; 
         FIG.  53    is a side elevational view of the preferred embodiment of the present invention illustrating a top-rearward panel of a primary shelter shell; 
         FIG.  54    is a side perspective view of the preferred embodiment of the present invention illustrating a side panel of a primary shelter shell and having an integrated door and an elongate sideward flap; 
         FIG.  55    is a front perspective view of the preferred embodiment of the present invention illustrating a side panel of a primary shelter shell and having an integrated door, an elongate sideward flap, and a sideward closure flap; 
         FIG.  56    is a side elevational view of the preferred embodiment of the present invention illustrating a side panel of a primary shelter shell and having an elongate sideward flap configured with a formed sleeve; 
         FIG.  57    is a top plan view of the preferred embodiment of the present invention illustrating a side panel of a primary shelter shell and having a bottom outward flap; 
         FIG.  58    is a rear perspective view of the preferred embodiment of the present invention illustrating one bottom panel of a pair of bottom panels and having a formed sleeve; 
         FIG.  59    is a side elevational view of the preferred embodiment of the present invention illustrating one bottom panel of a pair of bottom panels and configured with a buckle and strap assembly; 
         FIG.  60    is a front perspective view of the preferred embodiment of the present invention illustrating one bottom panel of a pair of bottom panels and configured with a buckle and strap assembly; 
         FIG.  61    is a rear perspective view of the preferred embodiment of the present invention illustrating a companion bottom panel of a pair of bottom panels and having a formed sleeve; 
         FIG.  62    is a front perspective view of the preferred embodiment of the present invention illustrating a companion bottom panel of a pair of bottom panels and having a formed sleeve; 
         FIG.  63    is a side elevational view of the preferred embodiment of the present invention illustrating a companion bottom panel of a pair of bottom panels and having a buckle and strap assembly; 
         FIG.  64    is a top perspective view of the preferred embodiment of the present invention illustrating a companion bottom panel of a pair of bottom panels and having a buckle and strap assembly; 
         FIG.  65    is a bottom perspective view of the preferred embodiment of the present invention illustrating a frontal-top-rearward panel of a secondary shelter shell; 
         FIG.  66    is a side elevational view of the preferred embodiment of the present invention illustrating a frontal-top-rearward panel of a secondary shelter shell; 
         FIG.  67    is a bottom perspective view of the preferred embodiment of the present invention illustrating a frontal-top-rearward panel of a secondary shelter shell and having an access door; 
         FIG.  68    is a top perspective view of the preferred embodiment of the present invention illustrating a box side panel of a secondary shelter shell; 
         FIG.  69    is a bottom plan view of the preferred embodiment of the present invention illustrating a box side panel of a secondary shelter shell; 
         FIG.  70    is a side elevational view of the preferred embodiment of the present invention illustrating a box side panel of a secondary shelter shell and having a zippered door; and 
         FIG.  71    is a schematic view of the preferred embodiment of the present invention illustrating electrical connections associated with operation of multiple linear actuators. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     While this invention is susceptible of being embodied in many different forms, the preferred embodiment of the invention is illustrated in the accompanying drawings and described in detail hereinafter with the understanding that the present disclosure purposefully exemplifies the principles of the present invention and is not intended to unduly limit the invention to the embodiments illustrated and presented herein. The present invention has particular utility as a portable shelter for outdoor excursions and like activities with structural features that advances automated assembly for immediate occupancy by one or more individuals and storage of accompanying gear and ancillary items, while equally possessing capabilities to attain a level of compactness for onboard, self-storage on a variety of vehicle types. 
     Referring now to  FIGS.  1 - 4   , there is shown generally at  10  a portable multi-hinged shelter in expanded form and mounted and attached to a vehicle  12  of the particular type equipped with an open cargo bay  12   a  or bed, with a portion of the portable shelter extending outwardly from a rearward end  12   b  of the vehicle to advance an increase in spatial capacity for comfortably accommodating one or more individuals and storage of accompanying equipment and related gear. As further shown therein, the portable multi-hinged shelter includes a protective shell assembly  14  semi-permanently attached to and exteriorly covering a box frame  16  and a moveable frame assembly  18 , in addition to incorporating an integral assembly of flaps  20  suited to protectively wrap and encase the moveable frame assembly while presented in collapsible form, primarily in preparation for transport. 
     The box frame  16  in  FIGS.  5 - 8    preferentially resides above the open cargo bay  12   a  and is configured to attach to sidewalls  12   c  substantially forming the cargo bay of the vehicle and includes four corner posts  22  generally extending vertically in alignment with the sidewalls and perpendicular to a bottom surface  12   d  of the open cargo bay, with each of the corner posts having a first end  22   a  and a second end  22   b  respectively connecting to upper horizontal members  24  and lower horizontal members  26  by way of a three-way connector  28 . The three-way connector in particular is shown in  FIGS.  9 - 14    to include an aperture  30  extending through each of the three walls  28   a  of the three-way connector for accepting therethrough a cap screw  32  or equivalent, with a threaded end  32   a  thereof being threadably inserted within a cylindrical bore  22   c,    24   a,    26   a  extending lengthwise about the corner post as well as of each of the upper and lower horizontal members. Accessible openings  34  supplement the three-way connector to allow access to and passage of the cap screw for advancing and consummating assembly. To promote proper alignment and positioning of the corner posts  22  with respect to the horizontal members  24 ,  26 , the three-way connector as in  FIGS.  11  and  12    incorporates within its structure an alignment member  36  extending outwardly from a backside  28   b  of each wall configured with the aperture for fitment within an open track  22   d,    24   b,    26   b  integrated within and extending lengthwise along each of the corner posts and horizontal members, generally formed within each as an extrusion. A corner cap  38  of the type depicted in  FIGS.  13  and  14    encases the three-way connector, whereby connectivity is maintained by a pair of outward pins  40  that engage and snap in place within corners of an open side  28   c  of the three-way connector  28 , while a pair of inversed grooved slides  42  engagingly mate with an equally configured pair of inversed grooved slides  44  integrated within the structure of the three-way connector&#39;s walls bearing the accessible openings. 
     As further depicted in  FIGS.  15 - 18   , the box frame  16  incorporates one or more intermediate members  46  to supplement its overall strength and rigidity and generally connect midway to each of the upper horizontal members  24  and lower horizontal members  26  as well as extending in between a pair of parallel upper horizontal members  48 . Connection of the individual intermediate members in this regard may be advanced by a first common connective assembly  50  primarily comprising a cap screw  50   a  or equivalent passing into and fitting within a cross bore  24   c,    26   c  extending perpendicularly through the upper and lower horizontal members, whereupon the cap screw&#39;s threaded end threadably engages a cylindrical bore  46   a  of the intermediate member  46 . 
     In some embodiments of the present invention, as represented in  FIGS.  17  and  18   , the box frame  16  may be fitted with an optional shelf system that fulfills expanded storage capabilities for items and the like interiorly within the confines of the portable shelter  10 . In this regard, a pair of shelf supports  52  individually extend horizontally in between and connect to one of the four corner posts  22  and a vertically orientated intermediate member  54 , generally in the manner shown in  FIGS.  17 - 19   . Connection is maintained by the first common connective assembly  50 , whereby by individual cap screws  50   a  fit within a cross bore  22   e,    54   a  respectively extending through the corner post and vertically orientated intermediate member and threadably engage and terminate within a cylindrical bore  52   a  of the shelf support  52 . In completing assembly of the shelf system, a shelf platform  56  is illustrated in  FIGS.  17  and  19    to extend to each of the mounted shelf supports  52  and attaches thereto by way of a cap screw  58  or equivalent fitting within a cylindrical sleeve  60  fixedly attached to each corner of the shelf platform. A track nut  62  of the type shown in  FIGS.  20  and  21    includes an overall geometric shape that enables it to slidably pass into and within an open track  52   b  of the mounted shelf support  52  yet inhibits upward movement as the cap screw  58  is tightened to a specified torque setting. Although the construct of the shelf platform  56  may exist in numerous forms, practically adapting use of the types conventionally known in the art, it is preferably fabricated from a plurality of inner supports  56   a  spaced apart from one another and bounded by and connected at their ends to a supportive frame  56   b  so as to maintain passing of light from above-positioned light fixtures that may be used within the interior of the portable shelter  10 . In some installations, where it is desired to increase the supportive strength of the shelf platform for heavily-weighted items, a stacked arrangement of shelf platforms may be aptly connected together by way of the cylindrical sleeves  60 , typically in the manner depicted in  FIG.  21   . 
     As illustrated in  FIGS.  17 ,  22  and  23   , the box frame  16  is preferentially attached to the vehicle&#39;s cargo bay  12   a  by way of an assembly of eye bolts  64  and multiple turnbuckles  66  of the type generally recognized in the art for such applications, with each of the turnbuckles having a pair of ends  66   a  individually configured with a connective hook  66   b  or equivalent and a tensioning mechanism  66   c  operating conjunctively with threaded stem portions  66   d,  whereby turning of the tensioning mechanism clockwise or counterclockwise respectively shortens or lengthens the effective length of the turnbuckle. In fulfilling attachment of the turnbuckles  66  to the box frame, one end bearing the connective hook  66   b  engages a lowermost eye bolt  68  fixedly mounted to the open cargo bay&#39;s bottom surface, whereas the other, companion connective hook is configured to engage an uppermost eye bolt  70  extending outwardly from and connecting to one of the lower horizontal members  26 . Adjustability of the eye bolt along the lower horizontal members is fulfilled by the capabilities of a track nut  72  slidably fitting within the open track  26   b,  whereas a threaded portion  70   a  of the eye bolt passes into and threadably engages the track nut to consummate a secured arrangement, as generally depicted in  FIGS.  22  and  23   . 
     In further association with the box frame  16 , a plurality of alignment plates  74  may be employed to ensure proper orientation and alignment of the box frame relative to the open cargo bay  12   a  while positioned atop the sidewalls  12   c  thereof. As can be seen in  FIGS.  24  and  25   , each alignment plate includes a top planar element  76  integrally connecting to and being perpendicularly orientated to a sideward planar element  78 , where the top planar element is configured to sit atop of and engage the lower horizontal member with the sideward planar element being situated to simultaneously abut against the horizontal member and an inner wall surface  12   e  of the cargo bay&#39;s sidewall. Moveability and securement of the alignment plates relative to and along the lower horizontal member  26  is furthered by an assembled arrangement of a cap screw  80  passing into an aperture  76   a  extending through the top planar element  76  where it is allowed to threadably engage a track nut  82  capable of sliding along the open track  26   b  of the lower horizontal member  26  and being tightened to fulfill securement of the alignment plate. 
     Now in reference to  FIGS.  26 - 30   , the portable shelter  10  is further associated with a supportive wind wall  84  possessing structural features for connecting the box frame  16  to the moveable frame assembly  18  as well as supporting connectivity of a lower wind wall  86  that supplementally serves to establish seating interiorly for one or more occupants with provisions for storage as well as being stowed for transportational purposes. 
     The supportive wind wall in particular is shown in  FIGS.  26  and  27    as having a pair of upright supports  88  each configured with a top end  88   a  and a bottom end  88   b  respectively connecting to an upper outward member  90  and a lower outward member  92  at each of their first ends  90   a,    92   a.  Each of the upright supports is further featured with at least one pair of inward supports  94  that serves to interface with and connect to the vertical post  22  of the box frame situated rearward of the vehicle  12 . Like the box frame, the first common connective assembly  50  is employed for this purpose, which includes individual cap screws  50   a  passing into and fitting within cross bores  88   c,    90   b,    92   b  extending through the upright support at predetermined locations and at the first ends of the upper and lower outward members and threadably fitting within the designated cylindrical bores  88   d,    94   a  respectively associated with the upright support  88  and inward support  94 . 
     In fulfilling connection of the two upright supports  88  as well as offering structural support for the lower wind wall  86 , each of the lower outward members  92  in  FIG.  27    connects to a lower support member  96  by way of the first common connective assembly  50 , whereby each of the lower outward members includes a second end  92   c  configured with a cross bore  92   d  for accommodating therewithin cap screw  50   a  for threadably engaging a cylindrical bore  96   a  integral to the lower support member. 
     Comparatively,  FIGS.  19  and  27    show each of the upper outward members  92  pivotally connecting to a sideward arm  98  of the moveable frame assembly  18  by way of an end-mounted pivot bracket assembly  100 , which includes a first pivot bracket  102  and a second pivot bracket  104  with each thereof being configured with a pair of parallel plates  102   a,    104   a  in an offsetting arrangement and extending upwardly from and integrally connecting to a base plate  102   b,    104   b.  In fulfilling connectively of the pair of pivot brackets in this regard, a bracket connective assemblage  106  comprising a pivot bolt  106   a,  one or more washers  106   b  and a nut  106   c  is collectively appointed for use with an aligned arrangement of bores  102   c,    104   c  extending through each set of parallel plates. 
     As specifically indicated in  FIG.  19   , connection of the first pivot bracket  102  to a second end  90   c  of the upper outward member and the second pivot bracket  104  to a first end  98   a  of the sideward arm  98  is advanced by a second common connective assembly  108 , which primarily comprises a pair of s-connectors  110  mountably associated with a pair of cap screws  112 . Each of the s-connectors in particular is shown in  FIG.  19    to include a top planar portion  110   a  geometrically configured to fit within an equally configured opening  90   d,    98   b  extending into each opposing side of the upper outward member  90  and sideward arm  98 . The s-connector is further featured with a protuberance  110   b  configured with an aperture  110   c  that is suited to threadably accept therein the cap screw&#39;s  112  threaded end, as exemplarily depicted in  FIGS.  31  and  32    and used in the context of other structural members of the portable shelter  10  having reliance on end-to end pivoting action discussed hereinafter, whereby the base plate  102   b,    104   b  is generally positioned in a manner that establishes a perpendicular orientation of the parallel plates relatively to the top planar portion  110   a  of the s-connector  110 , while holes  102   d,    104   d  extending through the base plate of the pivot bracket and aligning with the apertures  110   c  of the s-connector, as generally housed within the open track, accommodate the cap screws  112 . 
     In supplementing rigidity and strength of the supportive wind wall  84 , particularly to withstand applied forces that may act thereon during operative events, corner braces  114  of the type generally depicted in  FIGS.  33 - 35    may be employed relatively about the unified relationships of the upper and lower outward members with that of each of the upright supports  88 . Each of the corner braces, as shown in  FIG.  35    and adaptably used with the supportive wind wall and elsewhere within the portable shelter  10 , is fabricated as a triangular frame  114   a,  where two sides are perpendicularly orientated to one another with each side including one or more apertures  114   b  for accommodating passage of a cap screw  116 . Access to the cap screws for assembly purposes is made possible by equal number of elongate openings  114   c  extending through a diagonal wall  114   d  of the corner brace. Connection of the corner brace is generally fulfilled by a track nut  118  slidably positioned within the open track of the upper and lower outward members and upright supports before undertaking full assembly thereof. End caps  120  of the type depicted in  FIGS.  31  and  32    may be used generally at exposed ends of the upper and lower outward members as well as with other exposed structural members of the portable shelter  10 , whereby corner prongs  120   a  of the end cap each extend inwardly within an elongate cavity configured with walls generally forming and defining the open track and cylindrical bore. Securement of the end cap is fulfilled by an end screw  122  fitted within an expandable sleeve  120   b  suited for fitment within the cylindrical bore. 
     Referring now to  FIGS.  28 - 30   , the lower wind wall  86  is generally depicted therein as having an upper horizontal beam  124  extending in between and having ends  124   a  individually connecting to a first end  126   a  of an end support  126  by means of the first common connective assembly  50 , which includes cap screw  50   a  passing into its cross bore  126   b  and threadably fitting within a cylindrical bore  124   b  associated with the upper horizontal beam. The lower wind wall is structurally supplemented with a pair of framed sections  128  of which generally serve as seating or shelving for accommodating individuals, items and the like, whereby a pair of cantilevered supports  130  each extend outwardly from the upper horizontal beam and connect thereto at its first end  130   a  while a second end  130   b  connects to an inward end  132   a  of a running support  132  generally extending parallel to the upper horizontal beam. Connections in this regard are equally fulfilled by the first common connective assembly  50 , whereby individual cap screws  50   a  fit within cross bores  130   c,    132   b  respectively extending through the second end of the cantilevered support as well as an outward end  132   c  of the running support and threadably engage a cylindrical bore  132   d,    126   d  of the running support and second end  126   c  of the end support. 
     As shown further in  FIGS.  28  and  30   , the lower wind wall is supplemented with a pair of outward vertical pillars  134  each having a first end  134   a  connecting intermediate along each of the end supports  126  and a pair of inward vertical pillars  136  each connecting at its first end  136   a  intermediate along each of the cantilevered supports. Second ends  134   b  of the outward vertical pillars are depicted in  FIGS.  28  and  30    as extending beyond outward ends  138   a  of a lower horizontal beam  138  to form an outer leg  140  and connecting thereto intermediate along the outward vertical pillar, whereas second ends  136   b  of the inward vertical pillars connect intermediate along the lower horizontal beam. An inner leg  142  connecting to the lower horizontal beam  138 , primarily in between the inward vertical pillars, may supplement inner support to the lower wind wall. Connections of the foregoing are maintained by the first common connective assembly  50 , whereby cross bores  126   b,    130   c,    138   b  respectively extend into and through each of the end supports  126 , cantilevered supports  130 , and the lower horizontal beam  138  for receiving therein cap screw  50   a  that threadably engages the appropriate cylindrical bore  134   e,    136   c,    142   b,    138   c  respectively associated with each of the outward vertical pillars  134 , inward vertical pillars  136 , inner leg  142 , and lower horizontal beam  138 . As further evident in  FIG.  30   , each second end  134   b  of the outward vertical pillars forming the outer leg  140  and an unconnected end  142   a  of the inner leg are optionally fitted with an adjustable leg  144  that offers upward and downward adjustment of the lower wind wall  86  so as to manage uneven surfaces that may be inherently associated with a ground&#39;s surface. A threaded stem portion  144   a  configured at one end  144   b  with a foot pad  144   c  and second end  144   d  threadably fitting within the cylindrical bore  142   b  and cooperating with a fitted lock nut  146  consummates the assembly. 
     In fulfilling the capacity of the lower wind wall  86  to pivot for stowable purposes along path A in  FIG.  36   , the lower wind wall is further featured with a pair of vertical members  148  each connecting to the first end  126   a  of the end support by way of the first common connective assembly  50 , whereby cap screw  50   a  fits within a cross bore  148   a  extending through the vertical member and threadably engages the cylindrical bore  126   d  of the end support  126 , while an opposing end  148   b  of the vertical member pivotally connects to an anchoring support  150  as in  FIG.  29    by way of a surface-mounted pivot bracket assembly  152 , generally reflective of the type described hereinbefore. 
     A first end  150   a  of the anchoring support is shown in  FIG.  19    as connecting inwardly from each end of the lower support member  96  of the supportive wind wall  84  so as to provide ample clearance as the lower wind wall  86  pivots relatively about the mating pivot brackets in  FIG.  36    along path A. First and second pivot brackets  154 ,  156  of the surface-mounted pivot bracket assembly  152  are depicted in  FIGS.  28 - 30    as respectively residing atop of and mounting to an outer surface  148   c,    150   b  of the vertical member and anchoring support in proximity to their respective opposing and second ends  148   b,    150   c,  whereby a pair of cap screws  158  inserted within holes  154   a,    156   a  extending through a base plate  154   b,    156   b  of the individual pivot brackets as well as the vertical member and anchoring support and fitted with a nut  158   a  or equivalent, as accommodated within their respective open tracks  148   d,    150   d,  attains their securement to the lower wind wall. Aligned arrangement of apertures  154   c,    156   c  extending through parallel plates  154   d,    156   d  of the mating pivot brackets accommodates placement of a pivot bolt  160  configured with a nut  160   a.  Accordingly, by way of the foregoing assembly, the lower wind wall inherently possesses the capabilities of pivotally moving relatively about PB-A and traveling upwardly along path A in direction A′ in  FIG.  36    until the outer surface of the vertical member engages the second end of the anchoring support, and traveling downwardly along path A in direction of A″ until the foot pads  144   c  of the adjustable legs contact or engage the ground&#39;s surface. A pair of outward extending braces  162  as in  FIG.  30    may supplemental the structure of the lower wind wall to serve as a stop mechanism while the lower wind wall is advanced upwardly to attain compactness of the moveable frame assembly  18 . Connection of each outward extending brace to the outward vertical pillar  134  is fulfilled by the first common connective assembly  50 , which includes cap screw  50   a  or equivalent fitting within cross bore  134   c  extending through a lower portion  134   d  of the outward vertical pillar and threadably engaging a cylindrical bore  162   a  associated with the outward extending brace, as generally shown in  FIG.  28   . 
     Now in reference to  FIGS.  36 - 38   , the moveable frame assembly  18  is further associated with a primary canopy  164  extending from and connecting to second ends  98   c  of the sideward arms  98  and a secondary canopy  166  connecting intermediate along the sideward arms, whereby each of the canopies possesses the capabilities of collapsing inwardly toward the sideward arms as well as traveling outwardly therefrom respectively along paths C and E in  FIG.  36    to attain full expansion of the moveable frame assembly  18 . 
     As generally depicted in  FIGS.  37  and  38   , the primary canopy includes a pair of sideward members  168  each having a first end  168   a  connecting to ends  170   a  of a cross member  170  by way of the first common connective assembly  50 , whereby cap screw  50   a  or equivalent fits within a cross bore  168   b  extending through each end of the sideward members and threadably engages a cylindrical bore  170   b  of the cross member. In further respects, the primary canopy includes a shortened arm  172  generally extending perpendicular to the sideward member  168  and connecting intermediate along thereof to a second end  168   c  of the sideward member by way of the first common connective assembly  50 , which includes cap screw  50   a  or equivalent fitting within a cross bore  172   a  extending through the shortened arm and threadably engaging a cylindrical bore  168   d  integral to the sideward member. 
     In other featural aspects of the primary canopy  164 , each of the shortened arms includes first and second ends  172   b,    172   c  respectively connecting to the second end of the sideward arm  98  and a sideward support  174  of a ground brace  176  by way of the end-mounted pivot bracket assembly  100 , particularly of same type used for pivotally joining the first end of the sideward member to the upper outward member of the supportive wind wall. 
     In the case of mounting the first pivot bracket  102  to the first end of the shortened arm as in  FIGS.  31  and  32   , and likewise to the second end thereof, the base plate  102   b  is positioned to abut against the first end such that the parallel plates  102   a  thereof extend upright to allow upward pivotal rotation. S-connectors  110 , as a pair, are positioned within the corresponding openings  172   d  extending into the shortened arm  172  and existing on opposing outer surfaces thereof, whereby cap screw  112  or equivalent is inserted within each hole  102   d  of the base plate  102   b  of the pivot bracket and aperture  110   c  of the s-connector and threadably tightened to complete the pivot bracket&#39;s connective arrangement. In like manner, the second end  98   c  of the sideward arm  98  and a first end  174   a  of the sideward support  174  of the ground brace  176  are individually configured with the second pivot bracket  104  to engagingly mate and mesh with each of the pivot brackets mounted to ends of the shortened arm, as generally depicted in  FIGS.  31  and  32   . Insertion of the pivot bolt  106   a  within the aligned arrangement of bores  102   c,    104   c  extending through the parallel plates and fitting thereon an assembly of one or more washers  106   b  and a nut  106   c  preparatorily fixates the pair of mating pivot brackets for pivotable movement. 
     In  FIGS.  39  and  40   , the secondary canopy  166  is generally shown therein as comprising equivalent structure as the primary canopy, but differs slightly with respect to mounting of the pivot brackets so as to allow full collapse inwardly toward the supportive wind wall  84 . Accordingly, the secondary canopy includes a pair of sideward members  178  each having a first end  178   a  connecting to ends  180   a  of a cross support  180  by way of the first common connective assembly  50 , whereby cap screw  50   a  or equivalent fits within a cross bore  178   b  extending through the sideward member and threadably engages a cylindrical bore  180   b  integral to the cross support. 
     Comparatively, surface-mounted pivot bracket assemblies  152  as in  FIG.  36    provide for connection of the sideward members  178  to the sideward arms  98 , whereby first and second pivot brackets  154 ,  156  respectively mount to the second end  178   c  of the sideward member and intermediate along each of the sideward arms  98  of the moveable frame assembly  18 . Connection of the first pivot bracket with respect to the sideward member is advanced by at least two cap screws  158  or equivalent passing into and through an aligned arrangement of apertures  154   c  extending through the base plates  156   b  of the pivot bracket and sideward member and threadably fitting thereto the requisite nut  158   a.  Connection of the second pivot bracket with respect to each sideward arm of the moveable frame assembly occurs in like manner. 
     Consequently, through the structural connective arrangement of the pivot brackets, the secondary canopy can pivotally travel relatively about PB-E, inwardly toward the supportive wind wall  84  in direction of E′ along path E in  FIG.  36   , until the first end of the sideward member generally comes in proximate contact with the first end of the sideward arm  98  as in  FIG.  8   . Conversely, the secondary canopy  166  can travel outwardly away from the supportive wind wall  84 , in direction of E″ along path E in  FIG.  36   , until a portion of the second end  178   c  of the sideward member  178  generally contacts and engages the outer surface of the sideward arm  98 , particularly as such to establish a near-perpendicular orientation thereof with respect to the sideward arm as evident in  FIG.  36   . 
     As generally shown in  FIGS.  34  and  40   , the primary and secondary canopies are preferentially equipped with corner braces  114  to offer structural strength and advance rigidity thereof, particularly among areas most prone for possible permanent disfiguration due to applied twisting and torsional forces that the portable shelter may sustain during operative events. Accordingly, it is desired to place and mount the corner braces with associative cap screws  116  and track nuts  118  at the unions of the sideward members with that of the cross member, as generally associated with the primary canopy, and sideward member  178  with that of the cross support  180 , as generally associated with the secondary canopy. 
     In further reference to  FIGS.  41  and  42   , the moveable frame assembly  18  includes ground brace  176  that offers overall structural support thereof while presented in expanded form for accommodating occupancy by individuals Similar to the construct of the primary and secondary canopies, the ground brace is shown as comprising sideward supports  174  each having a second end  174   b  connecting to one of two ends  182   a  of a cross member  182  by way of the first common connective assembly  50 , which is fulfilled by cap screw  50   a  fitting within a cross bore  174   c  extending through the second end of the sideward support and threadably engaging a cylindrical bore  182   b  associated with the cross member. A corner brace  114  as in  FIG.  42    may supplement the connection at each of the foregoing locations, with mounting thereof being accomplished by caps screws  116  and accompanying track nuts  118  placed within an open track  174   d,    182   c  of the sideward support and cross member to facilitate threaded connection therewith. As generally illustrated in  FIGS.  31  and  32    and discussed above, adaptation of the end-mounted pivot bracket assembly to join the sideward support  174  to the shortened arm  172  provide means by which the ground brace  176  pivotally moves with respect to the primary canopy  164  to fulfill states of partial compactness and expansion of the moveable frame assembly  18 . 
     As represented in  FIGS.  43 - 46   , the movable frame assembly  18  incorporates multiple pairs of linear actuators  184  to advance automated contraction and expansion of the moveable frame assembly, particularly of the type generally recognized and available in the art for operative purposes set forth herein. The linear actuator preferably suited for the portable shelter  10  operates electrically and consists of a housed DC motor  184   a,  a series of gears (not shown) and a lead screw (not shown) with a driving nut (not shown) that pushes the main rod shaft  184   b  in and out, whereby a pivot pin  186  and an assembly of washers and a nut  186   a  and spacers  186   b  respectively secures and aligns the linear actuator with respect to a pair of mounts brackets  188 , as will be described hereinafter in further detail. 
     As shown in  FIG.  36   , a first pair of linear actuators  190  each extendably spans the connective arrangement of the upper outward member  90  and sideward arm  98  to afford pivotal rotation relatively about the mating pivot brackets designated at PB-B, whereby the sideward arm primarily travels along path B in direction B′ to generally reside in proximity to the upright support of the supportive wind wall  84  to effect a compact relationship thereof and, conversely, along path B in direction B″ to extend outwardly from the upright support of the supportive wind wall to effect a fully expanded relationship. Each linear actuator in association with the first pair is mounted intermediate along the upper outward member and sideward arm by means of the mount brackets, whereby cap screws  192  or equivalent are placed within apertures  188   a  extending through a bottom plate  188   b  of the mount bracket as well as the outward support member and sideward arm and appropriately fitted an assembly of washers and nuts  192   a  to affix the mount bracket&#39;s desired position. 
     Likewise, in  FIG.  36   , a second pair of linear actuators  194  each extendably spans the connective arrangement of the sideward arm and sideward member of the primary canopy to afford pivotal rotation relatively about the mating pivot brackets designated at PB-C, whereby the sideward member  168  primarily travels along path C in direction C′ to generally reside in proximity to the sideward arm  98  as well as the secondary canopy  166  to effect a compact relationship thereof as in  FIGS.  5  and  8   , and conversely, along path C in direction C″ to extend outwardly from the sideward arm to effect a fully expanded relationship and near linearity of the shortened arm with that of the sideward arm as in  FIGS.  6  and  19   . Each linear actuator in association with the second pair is mounted intermediate along the sideward arm and sideward member by means of the mount brackets  188 , whereby cap screws  192  or equivalent are placed within apertures  188   a  extending through the bottom plate  188   b  of the mount bracket as well as the sideward arm and sideward member and appropriately fitted with the assembly of washers and nuts  192   a  to affix the mount bracket&#39;s desired position. 
     Finally, in  FIG.  36   , a third pair of linear actuators  196  each extendably spans the connective arrangement of the sideward member  168  of the primary canopy  164  and sideward support  174  of the ground brace  176  to afford pivotal rotation relatively about the mating pivot brackets designated at PB-D, whereby the sideward support primarily travels along path D in direction D′ to generally reside in proximity to the sideward member of primary canopy to effect a compact relationship thereof as depicted in  FIGS.  7  and  8   , and conversely, along path D in direction D″ to extend outwardly from the sideward member to effect a fully expanded relationship and linearity of the shortened arm  184  of the primary canopy with that of the sideward support as generally depicted in  FIG.  6   . Each linear actuator in association with the third pair is mounted intermediate along the sideward member  168  and sideward support  174  by means of the mount brackets, whereby cap screws or equivalent are placed within apertures extending through the bottom plate  188   b  of the mount bracket  188  as well as the sideward member and sideward support and appropriately fitted with the assembly of washers and nuts  192   a  to affix the mount bracket&#39;s desired position. 
     As generally shown in  FIGS.  47 - 49   , the protective shell assembly  14  comprises a primary shelter shell  198  designated for use with the moveable frame assembly  18  and a secondary shelter shell  200  designated for use with the box frame that generally exists separable from the primary shelter shell, but semi-permanently attached thereto to facilitate assembly and disassembly for repairs that may be needed from time to time, for example, as well as providing for varied use of the box frame  16 , with and without the secondary shelter shell, apart from the moveable frame assembly  18 , with and without the primary shelter shell, and vice versa. 
     The primary shelter shell, as represented in  FIGS.  47  and  50 - 53   , includes a top-rearward panel  202  integrally including a bottom outward flap  204  to engage with the ground&#39;s surface that functionally mitigates updrafts into an interior compailinent  206  of the portable shelter and an extending top flap  208  of the integral assembly of flaps  20  used in part to encase the moveable frame assembly while presented in collapsible form for transportational purposes. Other notable features of the top-rearward panel as in  FIG.  50    include an integrated rearward access door  210  operably configured with a zipper  210   a  or equivalent type of closure mechanism for sealing the doorway and one or more windows  212  with each having a closable flap  214  configured with a hook-and-loop fastener  214   a  or equivalent attached along a top side thereof. 
     In  FIGS.  49  and  54 - 57   , the primary shelter shell  198  further includes a pair of side panels  216  each including common perimeter edge  216   a  sewnly attached to and along a common sideward edge  202   a  of the top-rearward panel, a bottom outward flap  218 , an integrated door  220  to the likes set forth for the top-rearward panel, one or more sealable air vents  222 , an elongate sideward flap  224  possessing protective functionality substantially equivalent to the extending top flap  208  for transportational purposes, and a sideward closure flap  226  for enclosing an elongate area  228  formed in between the supportive wind wall  84  and corner post  22  of the box frame  16 . 
     In further association with the primary shelter shell  198 , as shown in  FIGS.  48  and  58 - 64   , a pair of bottom panels  230  is fixedly positioned relatively about the lower wind wall  86 , where in particular each bottom panel includes an outer sideward edge  230   a  sewnly attached to a lower perimeter edge  216   b  of the side panel and a common interior edge  230   b  configured with a hook-and-loop fastener  232  or equivalent to engagingly mate with a complementary hook-and-loop fastener  232   a  or equivalent associated with the adjacent, companion bottom panel  234 . 
     Connection of the primary shelter shell to the moveable frame assembly  18  as in  FIGS.  50  and  51    is mainly provided by multiple straps  236  extending outwardly from and attaching to an interior surface  198   a  of the primary shelter shell. Each of the straps generally incorporates at its end a fastener  238  in the form of a hook-and-loop fastener  238   a,  a D-ring  238   b,  snap, button, or other suitable types generally recognized in the art for fulfilling this purpose. Configuration and securement of the straps  236  specifically in relation to the cross member of the primary canopy, cross support of the secondary canopy, and cross member of the ground brace generally involves encircling the straps around each of the foregoing structures and affixing their position with the fastener.  FIGS.  50 ,  58  and  61    illustrate exemplarily availability of straps individually configured with a D-ring to effect connection of the top-rearward panel  202  to available structure of the cross member  182  of the ground brace  176  and bottom panels  230 ,  234  to the lower wind wall  86 . 
     Comparatively, the secondary shelter shell  200 , as generally depicted in  FIGS.  49  and  65 - 70   , is shown therein as including a frontal-top-rearward panel  240  selectively positioned over front, top and back sides of the box frame  16 , whereby a rearward side  240   a  of the frontal-top-rearward panel includes an access door  242  configured with a zipper  242   a  or equivalent closure mechanism to possibly cordon off an interior space formed by the box frame and interior area of the moveable frame assembly or offer complete enclosure of the box frame  16 , generally in instances of desirable non-use of or being disassembled apart from the moveable frame assembly  18 . 
     In completing enclosure of the box frame, as depicted in  FIG.  49   , the secondary shelter shell  200  includes a pair of box side panels  244  each having an upper perimeter  244   a  and a pair of sideward edges  244   b  sewnly attached to a common sideward edge  240   b  of the frontal-top-rearward panel  240 . Other aspects of each box side panel as in  FIGS.  68  and  70    include an optional window  246  and zippered door  248  to gain convenient access to the interior space of the box frame and an integral sideward flap  250  configured with a hook-and-loop fastener  252  that selectively mates with a hook-and-loop fastener  226   a  integral to the structure of the sideward closure flap  226  of the side panel  216 , of which supplementally serves to protectively enclose the elongate area  228  formed in between the upright support of the supportive wind wall and corner post  22  of the box frame. Connection of the secondary shelter shell  200  to the box frame  16  is fulfilled by a plurality of straps  254  with each extending outwardly from an interior side  240   c,    244   c  of the frontal-top-rearward panel and box side panel  244  and being configured with a fastener of the type generally associated, for example, with the top-rearward panel. In advancing a tight seal between the primary shelter and secondary shelter shells, an assembly of segmented straps  256  as in  FIG.  2    are provided to slidably fit and reside within a formed sleeve  226   b,    202   b,    230   c  respectively integral to the sideward closure flap  226  of the side panel  216 , top-rearward panel  202 , and pair of bottom panels  230 . Fasteners  258  in the form of a buckle  258   a,  hook-and-loop fasteners, snaps, buttons, or equivalent provide means for connecting together ends  256   a  of the segmented straps. 
     Now by way of briefly exemplifying description of the assembly and functionally of the portable shelter  10 , one may appreciably gain further insight into the relatedness and interaction of the operative components discussed thus far that principally fulfill the utilitarian objects of the invention. 
     The box frame  16  is initially assembled by way of connecting together the corner posts  22  with that of the upper and lower horizontal members  24 ,  26  with structural provisions being made for mounting one or more shelves. The resultant box frame is selectively positioned about the sidewalls  12   c  of the open cargo bay and partially fitted with the secondary shelter shell  200  before finalizing attachment to the open cargo bay  12   a  by way of the turnbuckles  68 . 
     Comparatively, the moveable frame assembly  18  is preferably assembled in whole as a structure without the primary shelter shell  198  before being fixedly attached to the box frame, where in particular the supportive wind wall  84  pivotally connects to the lower wind wall  86  and the pair of sideward arms  98  followed by the primary canopy pivotally connecting to the sideward arms, the ground brace  176  pivotally connecting to the primary canopy  164 , and the secondary canopy  166  pivotally connecting to the sideward arms. In fulfilling automated operation for contraction and expansion of the portable shelter  10 , multiple pairs of linear actuators  184  are selectively mounted within the structure of the moveable frame assembly. 
     The first pair of linear actuators  190  connectively spans from the supportive wind wall to the sideward arms  98 , of which effects pivotal movement of the sideward arms outwardly from and inwardly toward the supportive wind wall  84  along path B in  FIG.  36   . The second pair of linear actuators  194  connectively spans from the sideward arms  98  to the primary canopy, of which effects pivotal movement of the primary canopy  164  outwardly from and inwardly toward the sideward arms along path C in  FIG.  36   . The third pair of linear actuators  196  connectively spans from the primary canopy to the ground brace  176 , of which effects pivotal movement of the ground brace outwardly from and inwardly toward the primary canopy along path D in  FIG.  36   . By and through the operation of the three pairs of linear actuators, the secondary canopy will experience pivotable movement relatively about its associative pivot bracket PB-E and will sustain movement along path E in direction E′ in  FIG.  36    to attain a degree of compactness with that of the primary canopy  164  and ground brace  176  in proximity to the sideward arm  98  as in  FIG.  8   , and conversely, will expand outwardly from its compact state along path E in direction E″ in  FIG.  36    as a result of its connection to the primary shelter shell  198  during setup of the portable shelter  10  for purposes of occupancy. 
     Control and operation of the linear actuators in this regard is preferably maintained by controller means, which principally comprises an on-board 12V power source BT 1  communicatively coupled to a 12 VDC charger and multiple switches S 1 , S 2 , S 3 , S 4  coupled in series to synchronize simultaneous operation of motors M 1 -M 6  associated with the three pairs of linear actuators  184  via a motor controller, as schematically represented in  FIG.  71   . 
     Once in assembled form, the moveable frame assembly  18  is selectively located in vicinity of the box frame and positioned to rest upon detachable clevis pins  260  temporarily affixed to and extending outwardly from the rearward corner posts  22  of the box frame  16 , whereupon cap screws  50   a  or equivalent of the first common connective assembly  50  are inserted within cross bores  22   e  extending through the corner post and threadably engaged within the cylindrical bores  94   a  associated with the pairs of inward supports  94  of the supportive wind wall  84 . After attachment in this regard, the detachable clevis pins are removed from the corner posts and the primary shelter shell is fitted relatively about and over the moveable frame assembly  18  and affixed thereto by means of the straps  236 , with sideward closure flaps  226  of the side panel of the primary shelter shell engagingly mating with the integral sideward flap  250  of the box side panels  244  of the secondary shelter shell  200  by way of the hook-and-loop fasteners. 
     In operational configurations of the portable shelter  10 , the moveable frame assembly, as associatively attached to the box frame  16 , is presented in expanded form with and without attachment of the primary shelter shell  198 , as in  FIG.  6   , and, conversely, in contracted form, as in  FIGS.  7  and  8   , to permit encasement thereof by way of the integral assembly of flaps  20 , particularly the extending top flap  208  and elongate sideward flap  224 , with provisions for securement thereof by multiple elongate straps  262  configured with fasteners  264  in the form of buckles  264   a,  hook-and-loop fasteners, snaps, buttons, ties, or equivalent, primarily in preparation of transport. 
     In a typical, yet preferred approach to protectively encase and wrap the portable shelter  10  for storage and transport, the elongate sideward flaps  224  are moved inwardly and folded to cover a majority of the primary shelter shell  198  from behind, whereby hook-and-loop fasteners  224   a  existing along an outer leading edge  224   b  engagingly mate with one another, while ends  262   a  of the elongate straps  262  are secured together by the buckle  264   a  or equivalent. Subsequently, a pair of lower elongate straps  266  each connectively extending from the elongate sideward flaps  224  are positioned to engagingly mate with a buckle and strap assembly  268  associated with the pair of bottom panels  230 . In completing encapsulation of the contracted moveable frame assembly, the extending top flap  208  is downwardly folded over the connected arrangement of the elongate sideward flaps  224  to permit hook-and-loop fasteners  208   a,    262   a  respectively associated with a leading edge  208   b  of the extending top flap and on an exterior surface  224   c  of the elongate sideward flaps to engagingly mate with one another. Comparatively, in instances where the moveable frame assembly  18  is expanded for utilitarian purposes of occupancy, the elongate sideward flaps may be rolled and bounded by one or more sideward straps  270  extending from and connecting to the side panels  216 , whereby fasteners  270   a  such as a buckle or equivalent secures ends of sideward straps for fulfilling compact storage of the elongate sideward flaps alongside the side panels. 
     It is obvious that the components comprising the portable shelter  10  may be fabricated from a variety of materials, providing such selection or use of materials possess the capacity to withstand forces acting thereon throughout its duration of use as well as limiting occurrences of premature failure due to repeated forces acting thereon during contraction and expansion of the moveable frame assembly  18 . Accordingly, it is most desirable, and therefore preferred, to construct the portable shelter  10 , namely, components of the box frame  16  and moveable frame assembly from extruded aluminum, high tensile strength plastic, polymer composites, or an equivalent type of material that meaningfully offers reasonable structural strength for its weight, while limiting the extent by which the components may unacceptably fail due to applied stresses. 
     While there has been shown and described a particular embodiment of the invention, it will be obvious to those skilled in the art that various changes and alterations can be made therein without departing from the invention and, therefore, it is aimed in the appended claims to cover all such changes and alterations which fall within the true spirit and scope of the invention.