Abstract: A portable enclosure, easily erectable and collapsible, to provide environment control and prevent contaminants from being released from the enclosure. The enclosure provides a flexible envelope attached to the interior of the space defined by vertical and horizontal supports which can be erected and collapsed. When erected the enclosure functions as an anteroom and has removable panels in the sides and top. In use, the enclosure is sealed against a vertical or horizontal surface to be worked on and a panel from the side of the enclosure is opened and closed to provide access to the surface by the user. When collapsed the enclosure is a package approximately the size of an average golf club bag which is easily portable to another location. Ducting is provided to which negative pressure pumps are connected to maintain negative pressure within the enclosure and draw contaminants into the pump and then into a closed container.

Abstract: A collapsible canopy frame is provided that includes elongated side poles each having a side and an end; and a plurality of wheel assemblies each having a mounting post and a wheel. The mounting post of each wheel assembly is supported on and extends transverse to a corresponding one of the elongated side poles.

Abstract: A collapsible tent structure includes a side frame and a top frame. The side frame comprises posts. Each post comprises an upper end and an upper section. The top frame comprises a top connector and top rods. Each top rod comprises an outer end and an inner end. The inner end of the top rod is pivotally connected to the top connector. Each top rod comprises two struts, a sliding bracket, a fixed bracket and a sliding socket. Each strut comprises an upper end and a lower end. The fixed bracket is secured to the upper section of the post. The sliding bracket is inserted onto the upper section of the post. The sliding socket is secured to the upper end of the post. The upper ends of the struts are pivotally connected to the top rod near the outer end of the top rod, while the lower ends of the struts are pivotally connected to the sliding bracket and the fixed bracket, respectively. The outer end of the top end is connected to the sliding socket.

Abstract: The quickly erectable canopy shelters include a plurality of legs connected together by an extendible perimeter assembly of link members. The roof structure is formed by a pole members pivotally mounted to the upper ends of the legs so as to extend across the shelter, and movable between a lowered position and a raised, upwardly arching position. The pole members are pivotally coupled to a central hub, and each of the pole members is formed of pole sections hinged to permit downward folding and upward unfolding until they are fully extended. Corner support strut members are pivotally mounted to the extendible perimeter assembly of link members adjacent to the legs, to support the pole members. The outer ends of the pole members are pivotally connected to the upper ends of the legs by pivoting link members that pivot between a lowered position and a raised position extending above the legs when the shelter is extended.

Abstract: A collapsible canopy frame is provided that includes a plurality of side poles arranged in a configuration and a center pole disposed generally at a center of the configuration of the side poles. The collapsible canopy frame also includes a plurality of edge scissor assemblies each having a length and a midpoint along the length. Each edge scissor assembly is coupled between adjacent ones of the plurality of side poles. The collapsible canopy frame also includes at least one inner scissor assembly including a first end and a second end, wherein the first end is coupled to a corresponding one of the edge scissor assemblies at a position offset from the midpoint along the length of the corresponding one of the edge scissor assemblies, and wherein the second end is coupled to the center pole.

Abstract: A structure that is foldable and expandable to support a canopy when a covering is placed on top of the framework includes a plurality of upright supports and a plurality of edge scissor assemblies that interconnect adjacent ones of the upright supports. Mounting brackets are disposed on the upright supports and also between scissor assemblies to fasten outer, end portions of the edge scissor assemblies together or to the upright supports. The mounting brackets each have a plurality of unique single side wall sockets each including a means for limiting torsional twisting of the scissor assemblies fastened in the socket. The limiting means comprises a complementary groove or rib for matingly engaging, in a complementary fashion, a complementary rib or groove, respectively, formed on the end of the scissor member received in the socket and secured therein with a pivot pin.

Abstract: The technology of the present application provides a canopy with an automatic roof structure having improved structural stability. The canopy comprises a plurality of vertical support posts connected by trusses. A plurality of roof support rods extend from the vertical support posts to a central hub. At least one of the roof support rods has a cantilever support extending from the associated slide or thereabouts to a pivot on the roof support rod. The canopy also comprises central truss supports and stubs extending from the connection of the lateral trusses to the central hub. The canopy has an expanded, open configuration and a collapsed, closed configuration.

Abstract: A frame element includes a first scissor including a first and a second strut pivotably connected to each other at a first pivot point, a second scissor including a third and a fourth strut pivotably connected to each other at a second pivot point, and a hub to which the first and the third strut are pivotably connected, the first and second scissors being pivotable about the hub between a closed position in which the first, second, third, and fourth struts are substantially parallel to one another and an open, locked position in which the first and third struts define a non-zero angle with each other and abutment portions of the second and fourth struts contact receiving portions of the third and first struts, respectively, and prevent the first and third struts from pivoting beyond the non-zero angle.

Abstract: A cantilever arrangement for a folding structure is provided. The folding structure is of the type including a plurality of strut members foldable between an open position in which the strut members define a non-zero angle with each other and a closed position in which the strut members define a substantially 0° angle with each other. The cantilever strut arrangement includes a first cantilever strut pivotably adapted to be attached at a first point on the folding structure and a first support member adapted to be attached at a second point on the folding structure and attached at a point on the first cantilever strut. When the folding structure is folded to the closed position, the first cantilever strut member defines a substantially 0° angle with the strut members.

Abstract: A folding frame assembly includes a folding frame including a plurality of pairs of struts connected end-to-end by a plurality of hub assemblies. Struts of each strut pair are pivotably connected at ends thereof to first and second ends of a hub assembly and are foldable relative to each other between a closed position in which the struts are substantially parallel to each other, the first ends of the hub assemblies are all substantially adjacent, and the second ends of the hub assemblies are all substantially adjacent, and an open position in which the struts define non-zero angles with each other, ends of the struts of each strut pair are separated from each other by the hub assemblies, and first and second ends of the hub assemblies are non-adjacent.

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: A tent frame including: leg posts a plurality of expandable connectors connected in pairs between adjacent posts, each connector having first and second outer ends and is fixedly connected at the first outer end to the upper end of one post and slideably connected at the second outer end to a lower portion of the same post, each connector movable between extended and folded states; a roof comprising upper poles, each pivotally connected to a post and to a central pole, each upper pole and corresponding central pole are movable between an extended and folded states; and support pole assemblies, each connected at one end to slide with a second outer end and at another end to a central pole so that each connector, upper pole and central pole expand together to the extended state and the support pole assemblies support the central poles to maintain the extended state.

Abstract: A foldable tent (1), wherein a covering is supported by a plurality of columns (2) and an outer peripheral frame (3) and reinforcement frames (4) connected to the columns (2), the reinforcement frames (4) are formed so as to pass through the inside of a polygon in plan view formed of the outer peripheral frame (3) and disposed so as to connect the columns to the center of the polygon to more increase the strength thereof over a conventional foldable tent, parts of unit pipe bodies forming the reinforcement pipe units (41, 42) of the reinforcement frames (4) are horizontal relative to an installation surface or downwardly titled toward the center thereof to smoothly fold the reinforcement pipe elements (41, 42) when the tent is dissembled, and the reinforcement frames (4) are supported on the columns (2) or on the columns (2) through play allowing the reinforcement frames (4) to move within a specified range from a center column (5) in a generally circumferential direction to smoothly fold the foldable tent.

Abstract: A canopy of the type that is typically packaged in a kit form that permits consumers to assemble a group of pipe members into a canopy structure. Once assembled and erected, the canopy includes a series of vertical posts and a series of rafters that extend upwardly from the post. In order to provide additional structural support, especially to the rafters and to the roof structure formed by the rafters, a series of cross or brace members are interconnected between the vertical posts and the rafters. These cross or brace members are arranged in sets with each set including two brace members that extend between a pair of vertical posts and a pair of rafters. The brace members, vertical posts and rafters form a truss network that imparts structural strength and rigidity to the overall canopy frame structure.

Abstract: The collapsible shelter includes a truss and a canopy framework that provides a flexible, collapsible canopy that is capable of flexing and moving, in whole or in part, between a raised position and lower positions having a reduced profile from the raised position. The collapsible shelter includes at least three legs supporting a flexible framework mounted to the tops of the legs and forming the framework of the canopy. Truss pairs of link members are connected to each of the legs on each side of the shelter between adjacent legs.

Abstract: A telescoping pole assembly for an erectable, collapsible shelter, includes first and second hollow telescoping sections slidably connected together, the first telescoping section being slidably disposed within the second telescoping section, and a spring loaded detent pin mounted to the second telescoping section. A weighted internal stop member is slidably disposed within the first telescoping section for movement between a first position and a second position. The internal stop member blocks the spring loaded detent pin in the first position, and the internal stop member does not block the spring loaded detent pin in the second position.

Abstract: A collapsible canopy frame includes a plurality of side poles, and a plurality of scissor assemblies for coupling the side poles to one another. The collapsible canopy frame also includes a center support pole, which includes an outer pole having an upper end and a lower end, and an inner pole slidable within the outer pole. The inner pole has an upper end that can extend upwardly from the outer pole and a lower end that can extend downwardly from the outer pole. A plurality of center scissor assemblies are provided for coupling the plurality of scissor assemblies to the center support pole. A fixing bracket fixed to the lower end of the outer pole has a central opening around the inner pole and a side opening. A locking pin is disposed at least partly in the side opening of the fixing bracket, and is used for fixedly coupling the inner pole to the fixing bracket.

Abstract: The lightweight erectable canopy shelters include a plurality of legs connected together by an extendible perimeter assembly of link members. In one embodiment, the roof structure is formed by a pole members pivotally mounted to the upper ends of the legs so as to extend across the shelter, and movable between a lowered position and a raised, upwardly arching position. The pole members are pivotally coupled to a central hub, and each of the pole members comprises pole sections hinged to permit downward folding and upward unfolding until they are fully extended. Corner support strut members are pivotally mounted to the legs, to be rotatable upwardly to engage and support the pole members.

Abstract: The quickly erectable canopy shelters include a plurality of legs connected together by an extendible perimeter assembly of link members. The roof structure is formed by a pole members pivotally mounted to the upper ends of the legs so as to extend across the shelter, and movable between a lowered position and a raised, upwardly arching position. The pole members are pivotally coupled to a central hub, and each of the pole members is formed of pole sections hinged to permit downward folding and upward unfolding until they are fully extended. Corner support strut members are pivotally mounted to the extendible perimeter assembly of link members adjacent to the legs, to support the pole members. The outer ends of the pole members are pivotally connected to the upper ends of the legs by pivoting link members that pivot between a lowered position and a raised position extending above the legs when the shelter is extended.

Abstract: A collapsible gazebo frame includes a set of four corner support members and a set of four scissor assemblies, each being coupled to a different pair of the four corner support members. Each of four scissor assembly sliders is slidingly coupled to a different one of the four corner support members and serves to extend and retract the scissor assemblies coupled to the respective corner support member when slid along the corner support member. A canopy support frame includes four canopy support members, each being coupled to the top end of a different one of the four corner support members and having a canopy frame joint. The canopy support frame also includes four canopy support arms. Each canopy support arm is coupled to a different one of the four scissor assemblies and to a different canopy frame extender such that the canopy frame joints lock when gazebo frame is deployed.

Abstract: A collapsible gazebo frame includes a set of four corner support members and a set of four scissor assemblies, each being coupled to a different pair of the four corner support members. Each of four scissor assembly sliders is slidingly coupled to a different one of the four corner support members and serves to extend and retract the scissor assemblies coupled to the respective corner support member when slid along the corner support member. A canopy support frame includes four canopy support members, each being coupled to the top end of a different one of the four corner support members and having a canopy frame joint. The canopy support frame also includes four canopy frame sliders, where each canopy frame slider is slidingly coupled to a different one of the four corner support members. The canopy frame sliders serve to lock the canopy frame joints when slid along their corner support members.

Abstract: A portable enclosure, easily erectable and collapsible, to provide environment control and prevent contaminants from being released from the enclosure. The enclosure provides a flexible envelope attached to the interior of the space defined by vertical and horizontal supports which can be erected and collapsed. When erected the enclosure functions as an anteroom and has removable panels in the sides and top. In use, the enclosure is sealed against a vertical or horizontal surface to be worked on and a panel from the side of the enclosure is opened and closed to provide access to the surface by the user. When collapsed the enclosure is a package approximately the size of an average golf club bag which is easily portable to another location. Ducting is provided to which negative pressure pumps are connected to maintain negative pressure within the enclosure and draw contaminants into the pump and then into a closed container.

Abstract: A variable support structure with modular construction includes at least one support structure module, which is bounded by joints (114, 115, 126, 121) of a first joint set that lie in a first surface, and by joints (101, 102, 113, 108) of a second joint set that lie in a second surface, and with at least one joint (109) of a third joint set that lies outside of the first surface. At least some of the joints of the first and second joint sets have a fixable position relative to one another, especially being connectable with one another, by a guide mechanism. The at least one joint (109) of the third joint set is connected with at least two joints (114, 115, 113, 121) of the first and/or second joint set by a connecting element (39, 41, 43, 45) that transmits essentially only tension forces.

Abstract: The foldable tent having eaves at the top of the sides of the Foldable frame [2] foldable eave frames [3] that extend outwardly can be folded together along with the frame [2] are provided. The covering 1 is put on the frame [2] having eave frames [3] which are n-shaped frames composed of a front side and two lateral sides. The front side is composed of a plurality of scissors frames [4] and the number of which is same to that of the cross beam [8] of the corresponding side of the frame [2] between two poles. Each of the lateral side is composed of a scissors frame [4]0 which is composed of two cross pieces pivotally connected to each other in the midway. All members of the framework [2] including the eave frames [3] are connected with each other through slide connection or pivot connection so that the tent can be used simply by extending the framework [2] and covering it with an tent covering [1].

Abstract: The lightweight erectable canopy shelters include a plurality of legs connected together by an extendible perimeter assembly of link members. In one embodiment, the roof structure is formed by a pole members pivotally mounted to the upper ends of the legs so as to extend across the shelter, and movable between a lowered position and a raised, upwardly arching position. The pole members are pivotally coupled to a central hub, and each of the pole members comprises pole sections hinged to permit downward folding and upward unfolding until they are fully extended. Corner support strut members are pivotally mounted to the legs, to be rotatable upwardly to engage and support the pole members.

Abstract: The present invention provides an improved portable shelter frame having upwardly extending support poles and linkage assemblies connecting the poles. Within the joints of the linkage assemblies are rolling element bearings to reduce joint friction and provide reinforcement support to the shelter frame.

Abstract: A tent frame including: leg posts a plurality of expandable connectors connected in pairs between adjacent posts, each connector having first and second outer ends and is fixedly connected at the first outer end to the upper end of one post and slidably connected at the second outer end to a lower portion of the same post, each connector movable between extended and folded states; a roof comprising upper poles, each pivotally connected to a post and to a central pole, each upper pole and corresponding central pole are movable between an extended and folded states; and support pole assemblies, each connected at one end to slide with a second outer end and at another end to a central pole so that each connector, upper pole and central pole expand together to the extended state and the support pole assemblies support the central poles to maintain the extended state.

Abstract: The erectable, collapsible shelter has a canopy with at least three sides and three corners, a leg assembly, and a perimeter truss linkage assembly having a plurality of perimeter truss pairs of link members connected to the leg assembly. The legs preferably have telescoping upper and lower sections with lower section for engagement with ground, and a slider member slidably mounted to the upper section of each of the legs. A canopy peak support assembly is provided that is movable between a raised position and a lowered position, with the canopy peak support assembly supporting the canopy above the top of the leg assembly in the raised position.

Abstract: A collapsible canopy framework structure of a regular polygon comprises a plurality of supporting members and a center post, which are constituted as a column. A plurality of first frame assemblies comprises at least one frame unit with a pair of frames being pivoted in an X shape at their center to each other, in which the first frame assembly is mounted between the supporting member and the center post. The third frame assembly comprises at least one frame unit to be mounted between the supporting members to secure the gaps between the supporting members and provide a structural reinforcement to the upper portion of an overall structure. At least one flexible string is passed through the cross-points of the frame units of the first frame assembly on which a block nut structure is mounted and then fixed into the block nut structure to form a regular polygon of the supporting members and give a tension to the overall structure.

Abstract: The lightweight erectable canopy shelters include a plurality of legs connected together by an extendible perimeter assembly of link members. In one embodiment, the roof structure is formed by a pole members pivotally mounted to the upper ends of the legs so as to extend across the shelter, and movable between a lowered position and a raised, upwardly arching position. The pole members are pivotally coupled to a central hub, and each of the pole members comprises pole sections hinged to permit downward folding and upward unfolding until they are fully extended. Corner support strut members are pivotally mounted to the legs, to be rotatable upwardly to engage and support the pole members.

Abstract: The collapsible shelter includes a truss and a canopy framework that provides a flexible, collapsible canopy that is capable of flexing and moving, in whole or in part, between a raised position and lower positions having a reduced profile from the raised position. The collapsible shelter includes at least three legs supporting a flexible framework mounted to the tops of the legs and forming the framework of the canopy. Truss pairs of link members are connected to each of the legs on each side of the shelter between adjacent legs.

Abstract: A tent structure includes supporting legs, linkages connected between every two neighboring supporting legs, and a head support. The supporting legs are standing on the ground and equally spaced from each other. Every two neighboring supporting legs are connected with one of the linkages. The head support includes rods and retractable rods. Each of the retractable rods comprises an elastic member engaging with the rod to adjust the length of the rod extending or retracting within the retractable rod. When a tarpaulin is placed on the head support, the retractable rods may extend its length to the degree that the tarpaulin is fully expanded and secured.

Abstract: A quickly erectable structure includes expandable/collapsible top and bottom assemblies that are interconnected to facilitate forming an enclosure and to facilitate taking down the enclosure. Specifically, the bottom assembly includes a plurality of interconnected X-shaped subframes that combine to form a telescoping scissor frame. The top assembly includes a plurality of inverted foldable Y-shaped subframes attached together and to a top of the telescoping scissor frame in a manner that combines the two to form a stable umbrella-like overcenter top frame attached atop the telescoping scissor frame. A drawstring mechanism is attached to a peak of the structure to hold the top frame in an expanded position. Flexible covers are attached to the two frames, and a drawstring arrangement on the top cover allows flaps to be lifted to form 360 degrees of windows.

Abstract: A collapsible tent skeleton frame includes a plurality of poles, a plurality of joints mounted respectively on the poles, a plurality of side ribs pivoted respectively to the joints, a top joint, and a plurality of upper ribs pivoted respectively to adjacent pairs of the side ribs and to the top joint. Each of the joints has two arms, each of which is formed with a recess that has a round inner end section and an extension. Each of the side ribs has a rounded end that is received in and that conforms to the inner end section of the recess in a respective one of the arms of a respective one of the joints.

Abstract: The quickly erectable canopy shelters include a plurality of legs connected together by an extendible perimeter assembly of link members. The roof structure is formed by a pole members pivotally mounted to the upper ends of the legs so as to extend across the shelter, and movable between a lowered position and a raised, upwardly arching position. The pole members are pivotally coupled to a central hub, and each of the pole members is formed of pole sections hinged to permit downward folding and upward unfolding until they are fully extended. Corner support strut members are pivotally mounted to the extendible perimeter assembly of link members adjacent to the legs, to support the pole members. The outer ends of the pole members are pivotally connected to the upper ends of the legs by pivoting link members that pivot between a lowered position and a raised position extending above the legs when the shelter is extended.

Abstract: A tent frame including: leg posts; a plurality of expandable connectors connected in pairs between adjacent posts, each connector having first and second outer ends and is fixedly connected at the first outer end to the upper end of one post and slidably connected at the second outer end to a lower portion of the same post, each connector movable between extended and folded states; a roof comprising upper poles, each pivotally connected to a post and to a central pole, each upper pole and corresponding central pole are movable between an extended and folded states; and support pole assemblies, each connected at one end to slide with a second outer end and at another end to a central pole so that each connector, upper pole and central pole expand together to the extended state and the support pole assemblies support the central poles to maintain the extended state.

Abstract: A tent structure includes four posts, four scissor-like linking rod sets, four retractable rod sets and a connector. The four posts are placed on four corners of the tent to form a square structure. Each post comprises a fixture at the top portion with a sleeve thereon at an upper portion and a sliding seat thereon at a lower portion. The sliding seat comprises a supporting rod. The four scissor-like linking rod sets are secured between the posts, respectively. One end of each retractable rod set is inserted through the sleeve of each post and the other end of the retractable rod set is pivoted to the connector, thus when the posts are expanded outwardly, the scissor-like linking rod sets are also expanded to form an arcuate tent.

Abstract: The triangular, wedge shaped erectable shelter includes a canopy and a leg assembly supporting the canopy. A perimeter truss linkage assembly is connected to the leg assembly, and each of the perimeter truss pairs includes first and second link members pivotally connected together in a scissors configuration, with the outer end of each first link member connected to the upper end of a leg, and the outer end of each second link slidably connected to the leg. The shelter includes a flexible pole member removably mountable to the upper end of at least one of the legs of the shelter to extend across the shelter and support the canopy of the shelter. The flexible pole member is preferably removably mounted in an indexing hole in a bracket affixed to the upper end of at least one of the legs.

Abstract: The collapsible shelter includes a truss and a canopy framework that provides a flexible, collapsible canopy that is capable of flexing and moving, in whole or in part, between a raised position and lower positions having a reduced profile from the raised position. The collapsible shelter includes at least three legs supporting a flexible framework mounted to the tops of the legs and forming the framework of the canopy. Truss pairs of link members are connected to each of the legs on each side of the shelter between adjacent legs.

Abstract: This invention discloses tongs-linkage, which, in its extended position, provides an essentially triangular-shaped surface, whereby the links of the tongs-linkage are themselves the panels that form the surface. Such assemblies may be planar, or, by use of intermediate hub elements, may form a surface with curvature. As such an assembly is compressed, the panel-links slide over one another, compressing down to a compact stack. Such tongs-linkages may be joined to similar linkages by pivots lying along their respective edges thereby forming extended structural surfaces. Surfaces that are planar, cone-shaped and doubly-curved surfaces of revolution are disclosed. In each case when the structure is retracted it compresses down to a compact linear element or ring.

Abstract: The quickly erectable canopy shelters include a plurality of legs connected together by an extendible perimeter assembly of link members. The roof structure is formed by a pole members pivotally mounted to the upper ends of the legs so as to extend across the shelter, and movable between a lowered position and a raised, upwardly arching position. The pole members are pivotally coupled to a central hub, and each of the pole members is formed of pole sections hinged to permit downward folding and upward unfolding until they are fully extended. Corner support strut members are pivotally mounted to the extendible perimeter assembly of link members adjacent to the legs, to support the pole members. The outer ends of the pole members are pivotally connected to the upper ends of the legs by pivoting link members that pivot between a lowered position and a raised position extending above the legs when the shelter is extended.

Abstract: A tent frame structure includes an upright pole with a lower nest movably inserted thereon and an upper nest fixed at the upper end thereof; one end of a large supporting rod is pivotally jointed with the upper nest and the other end thereof is pivotally jointed with a small supporting rod; the other end of the small supporting rod is pivotally jointed unto a top nest; one end of a supporting strut is pivotally jointed with the midsection of the large supporting rod and the other end thereof is pivotally jointed unto the lower nest; a plurality of struts respectively joint two adjacent upper and lower nests; the jointed struts cross and hinge each other to compose a movable and foldable frame in a shape of a parallelogram; to merely slide the lower nest up and down enables the opening and folding of the tent.

Abstract: A collapsible support (10) for a canopy (15) comprises a peripheral structure (20) and a central structure (60). Peripheral structure (20) includes four telescopingly collapsible legs (21), each having a sliding member (35) slidingly connected thereto and four pairs (40P) of X-configured truss structures (41) connecting legs (21). Central structure (60) connects between opposite side X-configured truss structure pairs (40P) and is supported thereby. Central structure (60) generally includes a center post assembly (61) supported by two pairs of orthogonal center trusses (80). Canopy (15) is attached to peripheral structure (20) so as to tension canopy (15) over center post assembly (61) in an erect configuration.

Abstract: The lightweight erectable canopy shelters include a plurality of legs connected together by an extendible perimeter assembly of link members. In one embodiment, the roof structure is formed by a pole members pivotally mounted to the upper ends of the legs so as to extend across the shelter, and movable between a lowered position and a raised, upwardly arching position. The pole members are pivotally coupled to a central hub, and each of the pole members comprises pole sections hinged to permit downward folding and upward unfolding until they are fully extended. Corner support strut members are pivotally mounted to the legs, to be rotatable upwardly to engage and support the pole members.

Abstract: A collapsible canopy comprises a covering [1] and a framework [2], covering [1] is put on collapsible framework [2], framework [2] includes a cross hinge [3], center members [4], U-shaped slide brackets [5], U-shaped slide brackets [6], side members [7], cantilever members [8], upside hinges [9], downside hinges [10], scissors frames [11], supporting members [12], springs [13], and holes [14]; each side of said framework [2] comprising collapsible cross beam comprising a plurality of scissors frames [11], each scissors frame comprising cross pieces [8] hinge connected to each other in the midway, two ends of each scissors frame [11] being respectively connected to two corresponding ends of the other scissors frame [11] of the same side by hinges, the other two ends of each scissors frame &lsqb

Abstract: A collapsible frame for use in erecting tents, canopies and the like at outdoor venues includes a plurality of telescopic legs for providing vertical structural support, and a plurality of top corner joints each fixedly mounted upon a top end of a corresponding telescopic leg. A leg slider joint is adjustably mounted upon each telescopic leg for sliding along that telescopic leg. A truss pair of link members is mounted to a pair of top corner joints and to a corresponding pair of leg slider joints mounted on adjacent pairs of telescopic legs for providing a scissors connector. Finally, a plurality of canopy support arms each including a flexible connector, and each fixedly connected to a top corner joint and a corresponding leg slider joint, is employed for raising and lowering the collapsible frame as a stable unitary structure.

Abstract: A tent frame including: leg posts; a plurality of expandable connectors connected in pairs between adjacent posts, each connector having first and second outer ends and is fixedly connected at the first outer end to the upper end of one post and slidably connected at the second outer end to a lower portion of the same post, each connector movable between extended and folded states; a roof comprising upper poles, each pivotally connected to a post and to a central pole, each upper pole and corresponding central pole are movable between an extended and folded states; and support pole assemblies, each connected at one end to slide with a second outer end and at another end to a central pole so that each connector, upper pole and central pole expand together to the extended state and the support pole assemblies support the central poles to maintain the extended state.

Abstract: The quickly erectable canopy shelters include a plurality of legs connected together by an extendible perimeter assembly of link members. The roof structure is formed by a pole members pivotally mounted to the upper ends of the legs so as to extend across the shelter, and movable between a lowered position and a raised, upwardly arching position. The pole members are pivotally coupled to a central hub, and each of the pole members is formed of pole sections hinged to permit downward folding and upward unfolding until they are fully extended. Corner support strut members are pivotally mounted to the extendible perimeter assembly of link members adjacent to the legs, to support the pole members. The outer ends of the pole members are pivotally connected to the upper ends of the legs by pivoting link members that pivot between a lowered position and a raised position extending above the legs when the shelter is extended.

Abstract: The present invention a collapsible shelter comprises spaced apart first and second upright pleated wall sections disposed substantially parallel to each other, first and second slanted pleated roof sections joined at upper ends to form a saw tooth roof peak, and joined at lower ends to upper ends of said wall section to form saw tooth wall-roof junctions, wherein said pleated wall sections together with said pleated roof sections form a tunnel member which is collapsible by folding said pleated sections onto each other in accordion style.

Abstract: A telescoping pole assembly for an erectable, collapsible shelter, includes first and second hollow telescoping sections slidably connected together, the first telescoping section being slidably disposed within the second telescoping section, and a spring loaded detent pin mounted to the second telescoping section. A weighted internal stop member is slidably disposed within the first telescoping section for movement between a first position and a second position. The internal stop member blocks the spring loaded detent pin in the first position, and the internal stop member does not block the spring loaded detent pin in the second position.