Abstract: A dome shaped roof structure for outdoor pools, both above ground pools and with minimal modification inground pools, that does not interfere with the use of the pool consisting of a plurality of flexibility poles supported by the pool, with a flexible tension ring holding the pole ends together over the center of the pool and a net fabric material that covers the pole and tension ring frame which is secured around the top of the pool. The roof structure works for all shapes and many sizes of pools providing protection from bugs and debris while still maintaining the outdoor experience. The high flexibility of the frame and tension ring allows winds and rain to flow thru without damage to the roof during inclement weather. The low number of elements that make up the roof structure make it inexpensive as well as easy to assemble, dismantle and store.

Abstract: A new central locking apparatus for a folding tent includes a top plate, a bottom plate assembly, and a center rod disposed between the top plate and the bottom plate assembly. The bottom plate assembly includes a bottom plate, a wrench assembly rotatably connected to the bottom plate, and a limit sleeve slidably connected in the bottom plate. The wrench assembly abuts on the limit sleeve, and the wrench assembly is capable of driving the limit sleeve to slide. A limiting component is disposed at a lower end of the center rod, the limiting component may be built into the bottom plate to fit the limit sleeve in a locking manner, and a first elastic element is disposed between the limit sleeve and the bottom plate through fitting.

Abstract: A dome shaped roof structure for outdoor pools, both above ground pools and with minimal modification inground pools, that does not interfere with the use of the pool consisting of a plurality of flexibility poles supported by the pool, with a flexible tension ring holding the pole ends together over the center of the pool and a net fabric material that covers the pole and tension ring frame which is secured around the top of the pool. The roof structure works for all shapes and many sizes of pools providing protection from bugs and debris while still maintaining the outdoor experience. The high flexibility of the frame and tension ring allows winds and rain to flow thru without damage to the roof during inclement weather. The low number of elements that make up the roof structure make it inexpensive as well as easy to assemble, dismantle and store.

Abstract: A labor-saving tent frame includes an upper hub, a lower hub and a drawstring structure, wherein the upper hub is articulated with inner ends of a plurality of long ribs, the lower hub is articulated with inner ends of a plurality of short ribs, and outer ends of the short ribs are articulated with middle portions of the long ribs in one-to-one correspondence; the tent frame further includes a long-short-rib articulated torsion spring provided with a first force arm of the torsion spring and a second force arm of the torsion spring, and the long rib and the short rib are fixed to the first force arm and the second force arm of the torsion spring respectively; the drawstring structure includes a drawstring with which the upper hub and the lower hub may be pulled closer, and two pulling ends of the drawstring hang down below the lower hub.

Abstract: In one aspect of the present disclosure, an umbrella hub assembly comprises an a cylindrical portion and a socket coupled to the cylindrical portion. The socket can have a fixed end, a free end, and a cylindrical wall defining a concave space extending from the free end toward the fixed end. The socket can have an access aperture disposed through the cylindrical wall. The assembly can further include an umbrella rib comprising a first end, a second end, and an elongate body extending along a longitudinal axis. The first end can be configured to be received in the concave space through the free end such that the socket engages the umbrella rib and such that the first end is accessible through the access aperture.

Abstract: A lift assembly for a spa cover is disclosed. The spa cover is for covering an open upper end of a spa. The lift assembly includes a lever arm having a first portion for supporting a spa cover, and a first end for pivotable coupling to a sidewall of a spa for rotation of the lever arm between a closed position in which the spa cover rests on the upper end of the spa, and an open position in which the spa cover is displaced from the upper end of the spa. The lift assembly also includes a resilient spring having a first end coupled to the lever arm, and a second end for coupling to the sidewall of the spa. In the open position of the lever arm, the spring urges the lever arm to rotate toward the closed position. A spa including the lift assembly is also disclosed.

Abstract: Described is a control structure for unfolding and folding a collapsible device or shelter. The control structure includes a sliding seat that is pivotally connected to adapter members, which are in turn connected to poles, e.g., tent poles. The tent poles are also pivotally connected to a lower support, and a resilient member (e.g., a spring) forces a separating between the sliding seat the the lower support. The resilient member biases the sliding seat toward the lower support to maintain the control structure in an unfolded position when open, and in a folded position when closed.

Abstract: A foldable tent includes a hub, a base having a plurality of separate base members and a plurality of slots formed on the base members. The plurality of slots are uniformly spaced apart radially, each slot formed by first and second walls, each of the first and second walls integrally formed on the respective base member and substantially parallel to each other. A plurality of poles are included, with each pole having at least two sections coupled by a joint. Each pole includes an inner end and an outer end, each pole inner end pivotally coupled to a corresponding slot. The hub and poles define a periphery when the tent is in an open configuration. A canopy is positioned within the periphery, the canopy being slidably connected to the poles in the open configuration and a closed configuration.

Abstract: The quickly erectable dome shelter includes an extendible perimeter truss assembly with link members connected between adjacent legs, a central truss assembly of link members, and a roof framework, including pairs of curved upper and lower peak truss members, that is movable between a lowered, collapsed configuration and a raised, upwardly arching position. The shelter also includes telescoping peak pole members coupled to the central truss assembly of link members and the roof framework, and may also include telescoping peak truss brace members connected between a peak truss member and a link member of the perimeter assembly of link members.

Abstract: A dome hub includes a body and a spoke extending radially from the body. The spoke is configured to receive a dome strut. The spoke includes a strut band configured to receive an end of a dome strut. A dome assembly kit includes a strut and a hub. The hub retains the strut within a spoke without threaded fasteners when assembled. The spoke includes a strut band that receives an end of the strut when assembled. A dome assembly method includes using a hub with a spoke and a strut band. The method includes using a strut and inserting the strut into the spoke. The strut is retained within the spoke without threaded fasteners. The method includes sliding the strut toward a center of the hub until an end of the strut is positioned against the strut band.

Abstract: An erectable canopy framework comprising a base frame and a roof frame. The roof frame is operative to support a canopy above the base frame and is removably mountable to the base frame. The base frame includes a plurality of upright support members, a plurality of cross members, each interconnecting adjacent upright support members, and a plurality of mounts disposed on the upright support members. Each mount includes a mount opening and each cross member includes a scissor assembly to permit movement of the base frame between expanded and a collapsed states. The mounts are operative to fasten the cross members to the upright support members. The roof frame includes a plurality of rafters each connectable to a corresponding mount opening. The framework comprises a plurality of rafter fittings each adapted for insertion into a corresponding mount opening and connectable to a corresponding rafter.

Abstract: An infant activity device comprising two or more arches configured for creating an activity space therebelow defined by a location of articulation of the arches, and further comprising an arch configuration member configured for displacement between different articulation configurations of the arches by sliding with respect to at least one arch and further configured for retaining the arches at any desired articulation configuration to thereby alter the activity space.

Abstract: The present invention provides a roof connecting mechanism of a foldable tent wherein a connecting hub is pivotally connected to roof strut rods so that the roof strut rods are movable in a compact manner relative to the connecting hub. The connecting hub includes pivoting cabinets in radial arrangement for pivoting the ends of each roof strut rod which has sufficient space to accommodate the ends of the roof strut rods when the tent is both in an open and folded configuration. The connecting hub also includes a stopper to limit the movement of the roof strut rods when in the open configuration. Such construction allows for a simple and compact opening and folding of the tent.

Abstract: The quickly erectable dome shelter includes an extendible perimeter truss assembly with link members connected between adjacent legs, a central truss assembly of link members, and a roof framework, including pairs of curved upper and lower peak truss members, that is movable between a lowered, collapsed configuration and a raised, upwardly arching position. The shelter also includes telescoping peak pole members coupled to the central truss assembly of link members and the roof framework, and may also include telescoping peak truss brace members connected between a peak truss member and a link member of the perimeter assembly of link members.

Abstract: An assemble-free fast deployable light modifier with a back side light source mount is an umbrella shaped light modifier providing an extremely soft diffusive light; with attached light diffusers, it uniquely easily and quickly opens from the vertex of its hemisphere to the inside of it, and folds in hands promptly; having optical fibers increases a number of light source sensor triggering. Any assembling or disassembling operations are not required. With the features mentioned above it is the fastest deployable light modifier.

Abstract: An easy to use, reliable, easy to repair, universal, simple, lightweight, compact, portable, multi-use modular system of poles and interconnections. An operator configures a number of structures using brackets, supports, segmented shafts, and interconnection components. The segmented shafts have both the ability to make an attachment to retain a particular configuration while being able to break down the shafts for transportation or storage. Some embodiments include a sleeve that protects the tip of a pole and provide a cushion and separation between a pole and a ferrule thereby reducing breakage and increase reliability. Broken components are easily replaced in the field. The configuration of the structure is changed by the user to quickly adapt to changing needs. Multiple components can be carried by separate members of a group and combined together to form a more complex structure to meet the needs of the group.

Abstract: A collapsible shelter assembly includes legs, a truss system, a cover, cover supporting rods and mounting brackets. Each of the legs has an upper and a lower end. The truss system is configured to link each pair of legs together and define a base perimeter. The brackets are adapted for mounting to the upper ends of the legs, for attaching to the rods at a predefined distance distal to ends of the rods and for defining an outer perimeter greater than the base perimeter. The cover is adapted for attaching about the ends of the rods for covering the outer perimeter.

Abstract: A hub assembly for a foldable tent includes a base and a plurality of slots formed on the base. Each slot is formed by a pair of side walls which are integrally formed on the base and includes a pivoting axis substantially normal between the corresponding pair of side walls. Poles are connected to opposing side walls of each corresponding slot for pivotal movement about the pivoting axis. In an open configuration of the tent inner ends of each of the poles engages the engaging surface of the base and is restricted from pivotal movement beyond the engaging surface, and in the closed configuration the inner ends of each pole is disengaged from the engaging surface of the base such that each pole is pivotable to a position substantially perpendicular to each corresponding engaging surface of the base.

Abstract: The present invention provides a foldable tent with a vent and corresponding rain fly for providing the tent with continuous ventilation while protecting the vent and interior of the tent from adverse weather conditions. The frame of the tent includes a hub, a plurality of roof poles and auxiliary poles pivotally coupled to the hub, and a plurality of leg poles coupled to the corresponding roof poles. Coupled to the frame is a canopy which includes the vent at a top portion of the canopy to allow air from continuously entering and exiting the interior of the tent. The rain fly is integral to the canopy and corresponding auxiliary pole, and is disposed proximate the vent. Thus, the foldable tent of the present invention is provided with secure and continuous ventilation, and is opened and folded without requiring additional assembly of components.

Abstract: A collapsible umbrella gym for an infant or toddler which is highly portable, and combines the desirable attributes of an activity arch and support mat such as an activity mat. The gym comprises a frame assembly which is selectively movable between collapsed and uncollapsed states. When in its fully deployed, uncollapsed state, the frame assembly assumes a configuration which provides the functional attributes of an activity gym or activity arch, with multiple toys or mobiles being suspended from the frame assembly at locations which are easily accessible to an infant or toddler lying underneath the frame assembly.

Abstract: The present invention provides an instant tent with an integral vent and corresponding rain fly for providing the tent with continuous ventilation while protecting the vent and interior of the tent from adverse weather conditions. The frame of the tent includes a hub, a plurality of roof poles and eave poles pivotally coupled to the hub, and a plurality of leg poles coupled to the corresponding roof poles. Coupled to the frame is an enclosed canopy which includes the vent at a top portion of the canopy to allow air from continuously entering and exiting the interior of the tent. The rain fly is attached to the canopy and corresponding eave pole, and is disposed proximate the vent. Thus, the instant tent of the present invention is provided with secure and continuous ventilation, and is opened and closed without requiring additional assembly of components.

Abstract: The quickly erectable dome shelter includes an extendible perimeter truss assembly with link members connected between adjacent legs, a central truss assembly of link members, and a roof framework, including pairs of curved upper and lower peak truss members, that is movable between a lowered, collapsed configuration and a raised, upwardly arching position. The shelter also includes telescoping peak pole members coupled to the central truss assembly of link members and the roof framework, and may also include telescoping peak truss brace members connected between a peak truss member and a link member of the perimeter assembly of link members.

Abstract: The present invention provides a roof connecting mechanism of a foldable tent wherein a connecting hub is pivotally connected to roof strut rods so that the roof strut rods are movable in a compact manner relative to the connecting hub. The connecting hub includes pivoting cabinets in radial arrangement for pivoting the ends of each roof strut rod which has sufficient space to accommodate the ends of the roof strut rods when the tent is both in an open and folded configuration. The connecting hub also includes a stopper to limit the movement of the roof strut rods when in the open configuration. Such construction allows for a simple and compact opening and folding of the tent.

Abstract: A tent is safely unfolded or folded when used and requires less time to unfold or fold and can be pitched automatically as well as manually to solve the problems of the prior art. In the tent, a worm gear and worm wheels are combined and tent connecting rods are attached to the worm wheels, respectively, so that when the worm wheels are moved, the tent connecting rods are moved to fold or unfold the tent. The worm wheel can be manually moved within the tent or the worm wheel can be automatically operated by providing a motor controlled through a remove controller so that the tent connecting rods can be unfolded or folded. In the tent, a central cavity part of a worm wheel body may be used as an air vent, and used as a passage for a smoke outlet from a heater in the winter.

Abstract: Foldable tent structure that includes the assembly of a number of curved half-poles that are connected to one another in their upper part according to a general radial arrangement to form, in the deployed state, the frame that supports the fabric of the tent and that can be folded against one another to store the frame.

Abstract: A tent includes a tent cloth and a tent frame to support the tent cloth. The tent frame comprises a top module and a plurality of supporting poles which are radially pivoted to the top module. The top module includes a modular main body, a top cap and a quick-pitch assembly. The modular main body includes a plurality of pivot sockets which are integrally formed with the modular main body. Each pivot socket is pivotally connected with a connector. The connector is further connected to the respective supporting pole. The connector has a top engaging portion at a pivot end thereof to mate with the quick-pitch assembly. The top cap is coupled to the modular main body to form a middle space. The quick-pitch assembly is located in the middle space and able to move up and down.

Abstract: The present invention relates to a connection device installed on a top of a canopy tent, comprising: a main body having a hollow interior, a sliding member having an interior with a downwardly protruding cylinder, support poles each having one end hinged to the main body, and the other end connected to a tent pole for standing the tent fabric upright, a joint bar having one end hinged to the sliding member, and the other end having one side hinged to a first connection bar hinged to the support pole and the other side hinged to a second connection bar hinged to the main body; The hollow interior of the main body is equipped with a compression spring and a spring holder. The cylinder of the sliding member is fitted into the hollow interior of the main body from the top of the hollow interior to be movable in the upward and downward directions to set up or taken of the tent canopy.

Abstract: A collapsible tent frame includes an upper connecting holder, a guiding rod, a plurality of poles, a plurality of first support rods, a middle connecting holder, a plurality of second support rods, and a lower connecting holder. Each of the plurality of first support rods has an inner end articulated to the middle connecting holder and an outer end articulated to an inner end of one of the plurality of poles. The first support rods provide an outward support action between the middle connecting holder and the poles to ensure that the tent won't be collapsed automatically after the tent is expanded, without the need for the fasteners of a traditional tent frame. The present invention is simple in structure and operation, and provides a better rigidity because there are four second support rods.

Abstract: The present invention provides a roof connecting mechanism of a foldable tent wherein a connecting hub is pivotally connected to roof strut rods so that the roof strut rods are movable in a compact manner relative to the connecting hub. The connecting hub includes pivoting cabinets in radial arrangement for pivoting the ends of each roof strut rod which has sufficient space to accommodate the ends of the roof strut rods when the tent is both in an open and folded configuration. The connecting hub also includes a stopper to limit the movement of the roof strut rods when in the open configuration. Such construction allows for a simple and compact opening and folding of the tent.

Abstract: A tent top assembly is mounted on top of a tent for connecting with a plurality of tent poles. The tent top assembly includes an upper module and a lower module. The upper module includes an upper seat, an upper press member and an upper lid which are separately formed and connected with each other. The lower module includes a lower seat, a lower press member and a lower lid which are separately formed and connected with each other. The upper seat and the lower seat each have a plurality of engaging grooves which are spaced and arranged in a radial form for connection of connecting heads of the tent poles. There is no need for rivets or other fasteners when assembling the present invention, saving the cost and the time of assembly. The tent top assembly can be assembled and disassembled quickly and easily.

Abstract: A quick-release structure for a frame rod of a tent includes an upper rod, a middle rod, a lower rod, an upper joint, a lower joint and a quick-release assembly. The upper joint includes a first joint head and a second upper joint head. The first upper joint head is connected to the upper rod, and the second upper joint head is connected to the middle rod. The first upper joint head includes an eccentric cam. The lower joint includes a first lower joint head and second lower joint heads. The first lower joint head is connected to the middle rod, and the second lower joint head is connected to the lower rod. The quick-release assembly includes a pipe, a pulley, a pulley seat, an upper pin, an upper spring, a lower pin and a lower spring.

Abstract: The present invention relates to a unique multi-purpose towed trailer unit having an aerodynamic streamlined configuration which results in less drag on the towing vehicle-trailer combination compared with drag resulting from the use of a bluff body trailer and a towing vehicle. At rest, the trailer is used in combination with a collapsible self-supporting deployable shelter which is stored in the interior of the trailer.

Abstract: A top support structure of a tent frame includes a top pivot holder (1), to which a plurality of support poles (10) are pivotally coupled. An elastic member (9) is provided between each support pole and the pivot holder. The elastic member folds and stores elasticity energy when the tent frame is folded and automatically springs the support poles when the elasticity energy is released. A control holder (2) is pivotally coupled to the bottom of the pivot holder, and the control holder has lock pieces (211) which can prop the support poles up to limit their rotation and release grooves (212) adjacent to the lock pieces which can release the limitation. On the top of pivot grooves (12) of the pivot holder are provided with position-limited devices (D) to prevent the support poles from rotating upwards.

Abstract: A hub assembly for a foldable tent includes a base and a plurality of slots formed on the base. Each slot is formed by a pair of side walls which are integrally formed on the base and includes a pivoting axis substantially normal between the corresponding pair of side walls. Poles are connected to opposing side walls of each corresponding slot for pivotal movement about the pivoting axis. In an open configuration of the tent inner ends of each of the poles engages the engaging surface of the base and is restricted from pivotal movement beyond the engaging surface, and in the closed configuration the inner ends of each pole is disengaged from the engaging surface of the base such that each pole is pivotable to a position substantially perpendicular to each corresponding engaging surface of the base.

Abstract: The quickly erectable dome shelter includes an extendible perimeter truss assembly with link members connected between adjacent legs, a central truss assembly of link members, and a roof framework, including pairs of curved upper and lower peak truss members, that is movable between a lowered, collapsed configuration and a raised, upwardly arching position. The shelter also includes telescoping peak pole members coupled to the central truss assembly of link members and the roof framework, and may also include telescoping peak truss brace members connected between a peak truss member and a link member of the perimeter assembly of link members.

Abstract: Disclosed is an improved ventilator apparatus for covers. The apparatus comprises a dome section that is associated with a first ventilator plate on the outside of a vehicle cover. The Dome section extends through the vehicle cover where it is associated with a second ventilator plate. A nut is used to releaseably associate the component pieces together so that a portion of the vehicle cover is clamped between the first ventilator plate and the second ventilator plate. Both the first ventilator plate and second ventilator plate are interchangeable so that either plate may be used on the inside or outside of the cover.

Abstract: In one embodiment, a shelter includes a first hub configured to be moveably coupled to a plurality of support linkages. The shelter excludes a second hub different than the first hub. The shelter includes a support linkage from the plurality of support linkages. The support linkage is pivotally coupled to the first hub. The support linkage is moveable between a collapsed configuration and an expanded configuration. The support linkage includes a first member and a second member pivotally coupled to the first member. An angle formed by an intersection between a longitudinal axis defined by the first member and a longitudinal axis defined by the second member is less than 180 degrees when the support linkage is in its collapsed configuration. The angle is greater than 180 degrees when the support linkage is in its expanded configuration.

Abstract: A shelter including a support assembly having a plurality of inflatable supports each having an elongated tube body and defining at least two separate longitudinal passages pneumatically separated by a bladder, wherein the tube bodies of each support is connected to the tube body of one or more of the other supports and wherein each of the passages of the each support is pneumatically connected to each of the passages of the other supports, and wherein the supports are spaced circumferentially apart as legs of the support assembly for forming a perimeter of the shelter, and a single port pneumatically coupled to only one of the supports, the port configured for passing air between an external pneumatic vessel and the support to which the port is coupled and a canopy including a plurality of wall panels, the wall panels being configured for being suspended from the support assembly.

Abstract: An umbrella holder includes a hollow tube for placing an umbrella handle. A fixing mechanism assembled is on the hollow tube and has a rotary button with a threaded rod screwed with a fixing block in the tube for tightening or releasing the umbrella handle, with a stop plate positioning the threaded rod of the rotary button. A first angle-adjusting mechanism is positioned under the hollow tube and has an immovable geared disk and a movable geared disk mounted on a rotary base and has an eccentric actuating member to engage or disengage the immovable and the movable geared disks. The holder also has a second angle-adjusting mechanism assembled under the first angle-adjusting mechanism and having an immovable geared disk with a fixed shaft and a movable geared disk disposed on a base having an eccentric actuating member for engaging or disengaging the immovable and the movable geared disks of the second angle-adjusting mechanism.

Abstract: The corner brace of a framework of a quickly erectable canopy shelter is connected between portions of a perimeter truss assembly connected to a leg of the framework of the canopy shelter. The corner brace includes a corner brace mounting pin on a first link member of an outer truss of the perimeter truss assembly, and a support truss tube member pivotally and rotatably connected at one end to an outer truss on one side of the leg. The other end of the support truss tube member is removably connected to an outer truss on the other side of the leg. The support truss tube member of the corner brace may include a support truss clip that fits to a link member of the framework. The framework may also include a canopy framework support assembly for supporting a canopy.

Abstract: Collapsible portable self-supporting shelter structures having from at least two component quad sections to seven or more component quad sections, which joined end to end form the width of the structure; and, said entire component sections optionally being joined side to side form a desired depth of the portable shelter. The resulting structure is a collapsible self-supporting prefabricated deployable shelter having a clear span interior without supporting columns. Some versions of the collapsible portable self-supporting shelter structure due to its configuration may optionally contain a floating hub which is a top element extending above the structure's standard exterior matrix frame. The floating hub forms a high pitch atop the shelter, which high pitch causes the fabric, which covers the matrix frame, to be maintained in a taut downward-sloping condition over the shelter top surface so no rain or snow collects in the fabric at the top of the shelter.

Abstract: Disclosed is an improved ventilator apparatus for vehicle covers. The apparatus comprises a dome section that is associated with a first ventilator plate on the outside of a vehicle cover. The Dome section extends through the vehicle cover where it is associated with a second ventilator plate. A nut is used to releasably associate the component pieces together so that a portion of the vehicle cover is clamped between the first ventilator plate and the second ventilator plate. Both the first ventilator plate and second ventilator plate are configured so that either plate may be used on the inside or outside of the cover. The improved ventilator plate design comprises air vents disposed within the plate so that water on a top surface of the ventilator plate cannot run into the vent openings. In addition, support gussets have been redesigned so provide an improved venturi action that tends to suck air through the vent opening when air blows across the vent openings.

Abstract: The quickly erectable dome shelter includes an extendible perimeter truss assembly with link members connected between adjacent legs, a central truss assembly of link members, and a roof framework, including pairs of curved upper and lower peak truss members, that is movable between a lowered, collapsed configuration and a raised, upwardly arching position. The shelter also includes telescoping peak pole members coupled to the central truss assembly of link members and the roof framework, and may also include telescoping peak truss brace members connected between a peak truss member and a link member of the perimeter assembly of link members.

Abstract: An easy to use, universal, simple, lightweight, compact, portable, dynamically configurable and modular system of concealment and shelter. An operator configures a number of concealment blinds or shelters using brackets, supports, segmented and folding shafts, covers, curtains, and skirts, and more complex modules. Advanced modules include user adjustable domes and angular structures. Angular frames with corresponding angular covers provide improved headroom. The system can be configured for placement on a hillside or over rough terrain and obstacles, or for different types use. The system provides covers with novel windows, movable panels, and configuration attachments. The operator changes the configuration of the structure to quickly provide cover, to increase cover, and to adapt to terrain or changing weather. The system includes novel methods of tightening the skin on a cover to reduce movement and noise, while improving safety.

Abstract: Disclosed is a cabin tent frame. The cabin tent frame includes a housing 20 having an insertion portion 23, an inserting slot 22 and an engaging slot 22b, a slider 10 slidably coupled with the lower portion of the housing 20, a fixing unit 30 elastically supported in the slider 10, an upper connecting pole 50 having an engaging piece 52 and a connecting bar 51, a cover 40 coupled to the upper portion of the housing 20, and a connector 53, one end of which is hingedly connected to the upper connecting pole 50 and the other end of which is hingedly connected to the slider 10. Therefore, with some embodiments the present invention, the rotational bearing capacity for the engaging piece 52 can be improved when the upper connecting pole 50 rotates, and at the same time damage to the engaging piece 52 can be substantially reduced.

Abstract: A portable structure includes first and second support poles, each having one lower end for resting on a ground surface. First and second connectors attach at upper ends of the first and second support poles, respectively and two or more linking poles connect the first support pole with the second support pole via the first and second connectors. The linking poles form obtuse angles with the first and second support poles at the first and second connectors. The linking poles form an eye shape between the first and second support poles when joined with the connectors.

Abstract: Collapsible portable self-supporting shelter structures having from at least two component quad sections to seven or more component quad sections, which joined end to end form the width of the structure; and, said entire component sections optionally being joined side to side form a desired depth of the portable shelter. The resulting structure is a collapsible self-supporting prefabricated deployable shelter having a clear span interior without supporting columns. Some versions of the collapsible portable self-supporting shelter structure due to its configuration may optionally contain a floating hub which is a top element extending above the structure's standard exterior matrix frame. The floating hub forms a high pitch atop the shelter, which high pitch causes the fabric, which covers the matrix frame, to be maintained in a taut downward-sloping condition over the shelter top surface so no rain or snow collects in the fabric at the top of the shelter.

Abstract: A portable sign including three legs movable between deployed and collapsed positions and a flexible covering bearing text, graphics or both includes a biasing mechanism urging the legs toward the deployed position. A support within the biasing mechanism secures three springs with the coils facing outward, one extension from each spring embedded in an upper support member and another extension movable within a plane tangential to a periphery of a lower support member and received by a hollow portion of one of the legs.

Abstract: A tent having a wind resistant tubular frame comprises: a frame having a) multiple frame legs, each leg having a lower portion lockingly hinged to an upper portion, wherein the lower portion can be swung open from a storage position in which the upper and lower portions are adjacent to each other, and then locked in an open operable position; and, b) a crown to which the an inner end portion of the upper portion of each one of the multiple legs is hinged generally laterally thereto, wherein the legs can be laterally rotated from a storage position in which they are adjacent to each other to an operable, spaced apart position in which the frame legs radiate outwardly from the crown; and, a canvas, shaped to cover one of an inner and outer sides of the frame. In a preferred aspect of this invention the tent further comprises a door side leg for opening an entire segment of the tent between two tent frame legs for convenient entry of large equipment.

Abstract: A collapsible free-standing frame structure includes N bowable resilient legs, where N is an integer greater than one, a multi-hinge, and a leg restraint. The multi-hinge includes a hinge body and N leg interconnectors for interconnecting the legs to the hinge body. The leg interconnectors are pivotally mounted to the hinge body for limited pivotal motion between closed positions, in which the interconnected legs are clustered around a central axis which extends through the hinge body, and open positions, in which the interconnected legs extend radially relative to the central axis. A pivot stop prevents the leg interconnectors from pivoting beyond the open positions. To erect the frame structure, the leg interconnectors are pivoted to their open positions, the interconnected legs are bowed against the pivot stop, and the distal ends of the bowed legs are attached to a leg restraint which maintains the legs in the bowed position.