Abstract: A kit for a portable assembly bed includes an operable carry bag having retaining elements disposed on the inside of the bag with bed construction removably retained by the retaining elements. The kits provide co-operable construction components including reinforced discs and tubular frame members for an assembled double-decker bed or two single beds, and at lease one foldable foot locker and an accessories pouch. The portable construction when assembled provides a complete double-decker cot with storage.

Abstract: Frequently there is a need to have a bed extended so as to provide for additional sleeping space. Typically a horizontal extension is provided that requires a larger floor space. Alternatively double-decker beds are used but these are cumbersome and less than attractive for every-day use. A bed comprised of two frames each having a mattress where the top frame lays over the bottom frame during normal usage is provided. When additional sleeping space is required the upper frame is raised vertically over the lower frame, creating a double-decker bed.

Abstract: A device serving as a mezzanine fold-away bed provided with a support structure and a frame (20), wherein a fold-away mechanism allows the frame to be folded away from a use position to a stow-away position. This mechanism includes two shafts situated on the frame, each of these shafts being connected via a tie-rod to a pivot on the support, structure in order to tie the frame to the support structure, and also includes a mechanism that synchronizes the movement of the two shafts.

Abstract: A dual berth bunk (20) for a sleeper cab (10) or other confined space includes a bunk frame (22) mounted for pivoting or rotating inversion. Berths (25a, 25b), or sleeping surfaces, are provided on the opposite sides of the bunk frame and a berth may be selectively positioned for use by pivoting or rotation of the bunk frame. A latch (56) or other device may be used to secure the bunk frame in the selected position. Retaining devices (104, 106) retain bedding in the berths when the berth in a downward inverted orientation.

Abstract: A stow-away bed is disclosed that includes a flat rectangular deck pivotally mounted between opposed vehicle end walls by a pair of parallel swing arms. The parallel swing arms allow the bed deck to remain horizontal as the deck is manually swung between the storage and sleep positions. The stow-away bed is pivotally mounted between opposed vehicle end walls for movement between a sleep position where the bed deck is suspended adjacent the vehicle ceiling and a sleep position, where the bed deck is suspended from the vehicle ceiling. In one embodiment, a pair of elastic cords connect the bed deck to the vehicle side wall. The elastic cords pull the bed deck toward the vehicle sidewall and help hold the bed deck in the sleep position. In another embodiment, a chain drive and piston prop are incorporated to assist in moving the bed between the storage and sleep positions.

Abstract: The invention provides a vertical lift mechanism (10) for a bunk bed within a recreational vehicle. The mechanism includes a lateral support assembly (14) that travels up and down in an upright frame assembly (34). The lifting force is provided by a drive unit (12) mounted to the support assembly (14) that winds and unwinds a flexible member (18) through a guide arrangement (68, 70, 72, 74, 76, 78, 80, 82) mounted to the support assembly (14). The flexible member (18) is preferably an assembly of cables, more preferably four primary cables (52, 54, 56, 58) each having one end attached to the ceiling of the vehicle and their opposite ends coupled together and linked to a leader cable (50) which is wound about the drive spindle (44). The primary cables (52, 54, 56, 58) travel around the guides (68, 70, 72, 74, 76, 78, 80, 82), which can be an arrangement of single and double sheaves or pulleys, to translate the winding force to vertical forces that raise or lower the support assembly (14).

Abstract: A collapsible bunk bed is provided having a first and second bed frame, one of which is positioned vertically above the other to form the bunk bed. The end walls of each bed frame have a hinged joint in the central portion so that the bunk bed may be folded into a collapsed configuration without disassembly of the end walls and side rails.

Abstract: A collapsible bunk bed is provided having a first and second bed frame, one of which is positioned vertically above the other to form the bunk bed. The end walls of each bed frame have a hinged joint in the central portion so that the bunk bed may be folded into a collapsed configuration without disassembly of the end walls and side rails.

Abstract: A sofa has a first frame fixed to first and second side members and a mattress with a first section secured to the first frame and a second section located over the first section by a hinge to define a seat that is rotated about the hinge to define a first sleeping surface. A second frame is pivotally attached to the first and second side members with a second mattress attached thereto to define a back for the sofa. A rail is secured to the second frame and engages a beam that extends between the first and second side member to set an incline for the back. The rail is rotated to define a barrier when the second frame is positioned a horizontal plane to define a second sleeping surface. Legs that extend from the second frame engage the side members to retain the second mattress in the horizontal plane.

Abstract: An aircraft cabin that includes a main structure being the structure of the aircraft and enclosing the cabin; a bridge forming a flat surface on which the seats are secured; an aisle extending longitudinally in cabin and elevated with respect to bridge, and beds or cots accessed by said aisle and arranged above seats of bridge, transversally with respect to aisle and on both sides of such aisle.

Abstract: The folding bunk beds of this invention fold between a horizontal sleep position and a vertical storage position. The various embodiments, both manually operated and power operated, of the folding bunk beds use vertically shifting pivot points to accommodate larger bed decks. The bed decks are hinged to carriages that slide on vertical shafts mounted within a wall frame. Bed decks are mounted to support arms that are pivotally connected to the carriages. A linkage mechanism or guide track allows the bed decks to pivot simultaneously between a horizontal sleep position and a vertical storage position as the carriages shift along the shafts. The vertically shifting pivot point allows the bed decks to kneel down, that is to fold up at a pivot point lower on the wall.

Abstract: A collapsible mounting frame for a raised platform or a raised bed as a unitary construction with two end frame assemblies and a plurality of hinged horizontal support links. The mounting frame may be moved from a collapsed or folded position to an open, extended, operable position to support the overhead platform or bed. The space beneath the raised platform or bed may be more effectively utilized.

Abstract: A system for implementing a modular structure having two or more cot places, characterised in that the modular structure is implemented by the mutual interconnection of single units (1) made of a pair of posts (2) and of at least one crosspiece (3) assembled in a sandwich arrangement blocked in position by fastening means (4). The system has the main advantage of providing a variable structural modularity to assume a plurality of different conditions, both with regard to the combinability thereof in terms of number of cot places and with regard to the overall dimensions thereof, while maintaining the same number of cot places, according to the varying of the user's needs over time.

Abstract: A passenger accommodation cabin for a vehicle, particularly an aircraft includes a wall defining a passenger accommodation area; a plinth disposed substantially at floor level and adapted to support a mattress within the accommodation area to provide at least one substantially flat bed; a false floor that is selectively movable between a deployed position in which the false floor at least partially covers the mattress and a retracted position for allowing use of the bed; and a seating system having at least one seat and associated supporting structure for supporting the seat within the accommodation area generally above the mattress.

Abstract: A stow-away bed is disclosed that includes a flat rectangular deck pivotally mounted between opposed vehicle end walls by a pair of parallel swing arms. The parallel swing arms allow the bed deck to remain horizontal as the deck is manually swung between the storage and sleep positions. The stow-away bed is pivotally mounted between opposed vehicle end walls for movement between a sleep position where the bed deck is suspended adjacent the vehicle ceiling and a sleep position, where the bed deck is suspended from the vehicle ceiling. A pair of elastic cords connect the bed deck to the vehicle side wall. The elastic cords pull the bed deck toward the vehicle sidewall and help hold the bed deck in the sleep position.

Abstract: A vehicle includes a cargo area which is configured to receive an off-road vehicle. The vehicle may include a bed which moves vertically between a use position and a stowed position. The vehicle may also include a seating unit which moves vertically between a use position and a stowed position. The vehicle may also include another item which moves vertically between a use position and a stowed position. The another item may include an article of furniture, an appliance, a storage unit, or a sink.

Abstract: A collection of adjustable, easy to assemble and reconfigurable bedstead elements which when used in conjunction with one another may be used to construct a single or multiple bedstead arrangement that can conform to a wide variety of spatial delineations, functional necessities, mattress specifications and individual design preferences.

Abstract: The present invention is a bed loft comprising a pair of end assemblies and at least one support beam for receiving a support beam prong. Each end assembly comprises a first post and a second post. The first post comprises at least one support beam prong for insertion into the support beam, at least one end assembly prong for insertion into an end assembly support beam, and a receiver for holding a foot of a bedpost. The second post comprises at least one end assembly support beam for receiving an end assembly prong and a receiver for holding a foot of a bedpost.

Abstract: A sub-assembly for a multiple bed unit having an elongate bed rail and a bed end including a pair of spaced, substantially vertical posts affixed to a side of the bed rail. Each of the posts includes a rail connector for receiving a rail of another bed. A multiple bed unit includes a first bed having a pair of bed ends, a side rail and a sub-assembly connected between and supported by the bed ends, and a second bed having a bed end and at least one side rail connected between the bed end of the second bed and the bed end of the sub-assembly of the first bed.

Abstract: A foldable bed comprising a frame for supporting a mattress, foldable between a sleeping position and a storage position, and a guardrail in hinged connection with the frame for pivoting movement of the guardrail relative to the frame between an upright guard position wherein the guardrail is angularly oriented relative to the frame and a nested position wherein the guardrail is in flush abutment with the frame. The guardrail may have a mounting tab and a slot in the frame for insertion of the mounting tab of the guardrail into the frame for pivoting movement of the guardrail relative to the frame between an upright guard position wherein the guardrail is angularly oriented relative to the frame and a nested position wherein the guardrail is in flush abutment with the frame.

Abstract: A modular patient support system adapted to be quickly mounted to utility vehicles such as trucks, buses, vans or trailers, to permit emergency medical workers to rapidly transform standard utility vehicles into specialized ambulances. When not in use, the modular patient support system is easily dismounted and collapsed for warehousing. The modular patient support system comprises a base frame that is used to attach the system to a vehicle. The base frame is oriented parallel and adjacent to a side wall of the vehicle. Two telescoping litter supports are attached to the base frame by hinges having a vertical axis of rotation. The two litter supports can either be extended normal to the base frame in order to support a patient on a litter, or collapsed and folded parallel to the base frame. A seat frame is adjustably attached to the base frame using multiple connecting links. When positioned vertically, the seat bottoms serve as mounting surfaces for medical equipment.

Abstract: A cover furnishing, generally made of a single continuous piece of rectangular plastic or suitable material affixed to cover and conceal the underside of a top bunk or loft bed system to prevent particles from falling from the mattress or on a ceiling above the top bed. The board may depict characters, designs, artwork, textures, photographs or any other desired designs imaged onto the board via current acceptable printing processes.

Abstract: A sub-assembly for a multiple bed unit having an elongate bed rail and a bed end including a pair of spaced, substantially vertical posts affixed to a side of the bed rail. Each of the posts includes a rail connector for receiving a rail of another bed. A multiple bed unit includes a first bed having a pair of bed ends, a side rail and a sub-assembly connected between and supported by the bed ends, and a second bed having a bed end and at least one side rail connected between the bed end of the second bed and the bed end of the sub-assembly of the first bed.

Abstract: A bedding assembly is provided having an integrated storage area. The assembly has one or more platforms having a recessed storage area and a deck pivotably mounted to the platform. The deck may be pivoted over the platform between a horizontal position where a use can lie upon the deck, such as for sleeping, and a non-horizontal position to allow access to the storage area of the platform. The platforms may be coupled together at a distance from one another by a pair of end frames. Optionally, garment hooks may be rotatably mounted onto the bed assembly and rotatable between a use position, for hanging items thereon, and a stowage position.

Abstract: A unitary headboard comprises a single piece of laminated plywood that has two posts and at least one cross piece cut out of it. A bed frame comprising side rails and cross supports has each side rail formed of a single piece of material. Each side rail has a support ledge and a lip where the foundation extending between the side rails can be selected from springs or boards at the user's option.

Abstract: A berth arrangement, especially for means of transport, is described, comprising a plurality of single berths (1) which are arranged in rows in a successive, superimposed and mutually offset fashion and receive at least one reclining seat (6), and which berths form a sitting room (2) and a foot room (3) starting out from the sitting room (2), with the height of the foot room being smaller than the sitting room height. In order to provide advantageous constructional conditions it is provided that the respective ceilings (5) and floors (4) of the sitting rooms (2) correspond to the negative shapes of the floors (10) and ceilings (9) of the foot space (3).

Abstract: A double bunk bed is convertible into a single bed or a settee by removing the upper base and mattress, placing it on the lower one and then lowering the end members to serve as arm rests or as head- and foot-boards for the single bed. The end members are of inverted U-shape and their arms are telescopically received in legs at the four corners of the lower base/mattress component.

Abstract: A multiple-use bunk bed has a top bunk (1) and a trundle bunk (2) positioned intermediate a first bedstead (3) and a second bedstead (4). The trundle bunk includes casters (5) on which the trundle bunk is adapted to be positioned intermediate a bottom of the first bedstead and a bottom of the second bedstead in a non-use mode and to be rolled out from between them for a use mode that includes use for sleeping. Vertically above the trundle bunk and under the top bunk intermediate the bedsteads are a desktop (6), shelves (11) and drawers (12). A closet (8) with a closet door (10) is positioned intermediate a back of the bunk bed and a closet wall (9) at an inside of the desktop. The drawers can include left-side drawers, right-side drawers, central drawers and bottom drawers. The multiple-use bunk bed can include single, regular, queen, king and special sizes.

Abstract: A combination bed and desk frame includes an extended height headboard and footboard connected at the top of the footboard by two spaced sideboards. Cross members are fastened between the headboard corner posts and footboard corner posts near their bottoms. A lower pair of bed rails are fastened between the cross members for supporting a commercially available household door, forming a desk top. A horizontally disposed shelf is provided at the top of the headboard for supporting a lamp or other articles. A horizontally disposed dressing bench is provided on the footboard. The bed/desk frame can be adapted to accommodate commercially available mattresses and box springs of various widths.

Abstract: A pneumatically supported bunk assembly is dynamically leveled using compressed air provided by the vehicle. Level sensors determine deviation from the horizontal. Extension sensors associated with the pneumatic cylinders prevent over or under extension of the pneumatic cylinders.

Abstract: A loft apparatus for providing a bed loft that is collapsible The loft apparatus includes a frame assembly being designed for supporting the mattress. A plurality of hinge portions are coupled to the frame assembly. The hinge portions downwardly extend from the frame assembly whereby the hinge portions are designed for engaging the floor and support the frame assembly above the floor. A plurality of leg portions are pivotally coupled to the hinge portions. Each of the leg portions is pivotal between a stored position and a deployed position. The stored position is defined by each of the leg portions being positioned substantially parallel to the frame assembly. The deployed positioned is defined by the leg portions extending downwardly from the hinge portions whereby the leg portions are designed for engaging the floor and raising the frame assembly and the hinge portions above the floor.

Abstract: A stand can support a conventional four-posted bed at an elevation substantially higher than floor level and provides open access to the greatly increased space beneath the bed. From above, the stand has a straight-sided-U shape with a leg at each corner. Two legs at the head and at the foot of the bed are connected by cross braces such that the stand has two opposing H-shaped end units. A a single longitudinal horizontally disposed truss extending along one side of the bed rigidly and strongly connects the end units.

Abstract: A combination bed and desk frame includes an extended height headboard and footboard connected at the top of the footboard by two spaced sideboards. Cross members are fastened between the headboard corner posts and footboard corner posts near their bottoms. A lower pair of bed rails are fastened between the cross members for supporting a commercially available household door, forming a desk top. A horizontally disposed shelf is provided at the top of the headboard for supporting a lamp or other articles. A horizontally disposed dressing bench is provided on the footboard. The bed/desk frame can be adapted to accommodate commercially available mattresses and box springs of various widths.

Abstract: Modular bedroom furniture uses a plurality of elongated members, each comprising an inner rigid core covered by a plastic/polymeric sleeves. A plurality of corner and “t-joints,” as appropriate, are used to connect the sleeved members to form the furniture. In different embodiments, the elements and elbows form a bunk bed, loft bed, or the like. Particularly for younger children, some or all of the polymeric/plastic sleeves may glow in the dark.

Abstract: An arrangement pertaining to aircraft seats (1) includes a seat cushion (2) and a backrest (3), with a number of aircraft seats (1A-D) juxtaposed. The seat cushions (2) of the juxtaposed aircraft seats (1A-D) can be raised or lowered to form a long, generally continuous bed surface, and a further bed section (9) which is normally located beneath the seat cushions or hoisted into the cabin ceiling structure can form a further bed section (9).

Abstract: A pneumatic couch includes an airtight envelope divided into a lower skin and an upper skin. The airtight envelope includes low-stretch material. The pneumatic couch also includes at least one valve for inflation with compressed air and deflation. Between the lower skin and the upper skin, a plurality of flexible webs are arranged running in vertical planes substantially parallel to each other. The flexible webs comprise low-stretch material and are joined over the entire length of the flexible webs both to the lower skin and to the upper skin. At an upper and a lower end of the couch, the airtight envelope overlaps the flexible webs and the lower skin and the upper skin are joined airtight. The airtight envelope overlaps an outermost web on a first and second long side and the lower skin and the upper skin are joined airtight. On one long side of the couch both the lower skin and the upper skin continue past the airtight joint, and are taken around a rear wall and joined to each other, and form a back part.

Abstract: A bedding assembly having a storage area integrated therewith. In one aspect, the assembly comprises one or more platforms having a recessed storage area and a deck pivotably mounted to the platform. The deck may be pivoted generally over the platform between a horizontal position where a use can lie upon the deck, such as for sleeping, and a non-horizontal position to allow access to the storage area of the platform. In another aspect, the bedding assembly provides a storage solution for a bunk bed type arrangement. The assembly comprises upper and lower platforms, a deck pivotably mounted at least one of the platforms, a pair of end frames extending between the upper and lower platforms, and a pair of base supports. The upper and lower platforms have sleeves formed therethrough, and at least one of the platforms has a recessed storage area with a pivotably mounted deck thereon to allow access to the storage area.

Abstract: A support is provided for a bed or the like which provides one hundred percent unobstructed floor space therebelow. The support may be used for supporting a pair of vertically spaced beds or a bed having a desk or sofa positioned therebelow. The support comprises upstanding first and second end frames which are horizontally spaced-apart and which have guardrails secured to the upper ends thereof. Cross supports extend between the guardrails for supporting a bed thereon. Accessory supports optionally extend between the first and second end frames for supporting a desk or sofa thereon. The support may be quickly assembled and disassembled without the use of tools.

Abstract: A space-conscious, functional design for a loft bed. The design serves to optimize space by incorporating multi-functional features, such as drawers, closet space, or cabinet space, within the assembly for the bed itself. Specifically, a plurality of steps are substantially parallel to the length of the bed, and lead upwardly toward the foot of the bed for easy access to same. Such steps incorporate the aforementioned storage space, with access to the drawers or closets from a side position. As such, the unique assembly allows for a desk, computer work station, bar, or additional wide storage space below the bed and behind the steps, adding to the overall versatility of the assembly. Finally, in the preferred mode the unit is modular in nature and may be assembled and rearranged based upon user preference.

Abstract: A support is provided for a bed or the like which provides one hundred percent unobstructed floor space therebelow. The support may be used for supporting a pair of vertically spaced beds or a bed having a desk or sofa positioned therebelow. The support comprises upstanding first and second end frames which are horizontally spaced-apart and which have guardrails secured to the upper ends thereof. Cross supports extend between the guardrails for supporting a bed thereon. Accessory supports optionally extend between the first and second end frames for supporting a desk or sofa thereon. The support may be quickly assembled and disassembled without the use of tools.

Abstract: The inventive pneumatic mattress (1) is comprised of an air-tight cover (2) which is arranged in a top layer (7) and in a bottom layer (6), whereby the top layer (7) and bottom layer (6) are interconnected by a multitude of cross-members (3), for example, textile cross-members. A rear wall (4) is arranged outside of the air-tight area of the cover (2), however, it is enclosed by the top and bottom layers (7, 6). The rear wall (4) is fastened to the wall (5) using known means (5) such that the cover (2) does not require passages running therethrough. The cover (2) is comprised of a textile material which does not stretch easily and which is coated in order to render it air-tight. The cross-members (3) are also made of, for example, a textile material that does not stretch easily. For use, the pneumatic mattress (1) is inflated with compressed air for which a valve (9) is provided.

Abstract: A support is provided for a bed or the like which provides one hundred percent unobstructed floor space therebelow. The support may be used for supporting a pair of vertically spaced beds or a bed having a desk or sofa positioned therebelow. The support comprises upstanding first and second end frames which are horizontally spaced-apart and which have guardrails secured to the upper ends thereof. Cross supports extend between the guardrails for supporting a bed thereon. Accessory supports optionally extend between the first and second end frames for supporting a desk or sofa thereon. The support may be quickly assembled and disassembled without the use of tools.

Abstract: A support is provided for a bed or the like which provides one hundred percent unobstructed floor space therebelow. The support may be used for supporting a pair of vertically spaced beds or a bed having a desk or sofa positioned therebelow. The support comprises upstanding first and second end frames which are horizontally spaced-apart and which have guardrails secured to the upper ends thereof. Cross supports extend between the guardrails for supporting a bed thereon. Accessory supports optionally extend between the first and second end frames for supporting a desk or sofa thereon. The support may be quickly assembled and disassembled without the use of tools.

Abstract: A connector (10), for removably securing a mattress (18) to a mattress supporting bed frame (22), that is provided a length that is sufficient to allow one to pull the mattress (18) from a first position in which it is fully supported on the supporting frame (22), to a second position in which it is supported on an edge of the frame (22) and hangs out beyond the edge of the supporting frame (22). The connector (10) is sufficiently short to retain the mattress (18) in the second position and not allow the mattress (18) to fall off the supporting frame (22). The connector (10) allows a person placing sheets on the mattress (18) to pull the mattress (18) toward oneself into the second position and thereby more easily reach the far edge of the mattress (18) when placing sheets on it, and can then put the mattress (18) back into the first position when the sheets are in place.

Abstract: A bedding assembly having a storage area integrated therewith. In one aspect, the assembly comprises one or more platforms having a recessed storage area and a deck pivotably mounted to the platform. The deck may be pivoted generally over the platform between a horizontal position where a use can lie upon the deck, such as for sleeping, and a non-horizontal position to allow access to the storage area of the platform. In another aspect, the bedding assembly provides a storage solution for a bunk bed type arrangement. The assembly comprises upper and lower platforms, a deck pivotably mounted at least one of the platforms, a pair of end frames extending between the upper and lower platforms, and a pair of base supports. The upper and lower platforms have sleeves formed therethrough, and at least one of the platforms has a recessed storage area with a pivotably mounted deck thereon to allow access to the storage area.

Abstract: Convertible furniture unit has a base and a bed platform connected to the base for displacement about a first axis from a stowed position to a use position. The platform is adapted to support a mattress. A table panel is pivotally mounted to the platform for displacement about a second axis between a support and a use position. An extension is pivotally connected to the table panel for rotation of the extension between an upper position for propping the panel in its working position, and a lower position. The extension pivots on a spreader fixed to the base. The spreader also contains a spring and optional linear actuator for controlling displacement of the platform.

Abstract: A restraint system for protecting occupants in a sleeping compartment of a vehicle having a bunk bed includes at least two flexible straps having one end attached to a selected one of the vehicle or the bunk, and a second end. Attached to the straps is at least one energy absorbent padding in a position relative to the bunk bed for providing restraint and secondary collision protection to a prone occupant. The straps extend from the vehicle over the bunk bed to the second ends. A releasable lock is attached to the second ends for connecting the second ends to the vehicle or bunk. When not in use, the restraint system is conveniently stored so as to provide minimal impact on cab space. A strap retraction means is attached to the vehicle and has the first ends of the straps attached thereto. The strap retraction means is operable to retract the straps when the releasable lock is unlatched whereby the straps collapse into a stored position.

Abstract: A bed assembly including a headboard, a footboard, a support frame and a mattress. The headboard, includes a plurality of equally spaced first frame coupling members, a lower portion having first mating members, and an upper portion having second mating members. The footboard includes a plurality of equally spaced second frame coupling members, a lower portion having third mating members, and an upper portion having fourth mating members; The support frame includes a first headboard coupling member for engaging at least one of the first frame coupling members on the headboard; a first footboard coupling member for engaging at least one of the second frame coupling members on the footboard; first mattress support member; and a second mattress support member pivotally coupled to the first mattress support member. The mattress is disposed generally on the first mattress support member and the second mattress support member.

Abstract: A bunk bed or a high rise (loft) bed framing system. The framing system incorporates interlocking tubular rails and posts for constructing the framing system. The tubular rails and posts are of varying diameters which fit into corner posts. The tubular rails and posts form an integrated ladder system and an integrated safety rail system when the framing system is assembled. The ladder system and the safety rail system provide added safety to the user while providing further stability, stiffness and durability to the framing system.

Abstract: A support structure for beds and the like is described comprising a plurality of components which are easily secured together in a minimum amount of time. The scaffold or support is comprised of a pair of floor cross supports, four vertical legs, a pair of lower cross supports, a pair of left end supports, a pair of right end supports, bed cross pieces, a pair of ceiling beams, and a pair of upper cross supports. When assembled, the floor space beneath the support structure is available for use.