A trussed collapsible tubular mast includes a deformable beam having an extended state, a flattened state, and a rolled state, where a stiffness and strength of the deformable beam in the extended state is greater than a different stiffness and a different strength of the deformable beam in the flattened state. At least one collapsible tubular mast wall has a plurality of truss members of a first material having a first material thickness. At least one truss member is disposed substantially perpendicular to a longitudinal axis of the trussed collapsible tubular mast. Disposed between the truss members is a wall area of a second material thickness less thick than the first material thickness.

The present disclosure is directed to climbing wall assemblies having a variety of improvements. For instance, the climbing wall assemblies may include connectors to attach the surface panels to the framework, in which the connectors may be mounted substantially anywhere along the front of the framework and at substantially any angle, providing for the securement of climbing panels in various geometries. The climbing wall assemblies may also include braces that may easily be adjusted to a desired length and configuration during construction of a climbing wall. The climbing wall assemblies may also include variable-angle, integral front posts, which provide for the easy and stable securement of climbing panels in various geometries. These improvements provide climbing wall assemblies that may be easily assembled to produce a desirable climbing wall structure having few framework components.

A locking arrangement, including a panel with a locking groove; an edge strip with a first form; as well as a locking element placed at least partly or entirely between the edge strip and the panel. The locking element includes a protrusion inserted in the locking groove of the panel and configured to prevent the panel from detaching from the edge strip, and a second form matching with and received by the first form of the edge strip, and configured to prevent the locking element from detaching from the edge strip. In the presented method for assembling the locking arrangement, in its first step, the locking element is placed against the panel so that the protrusion is inserted in the locking groove of the panel, after which they are installed in the edge strip.

The present disclosure is directed to climbing wall assemblies having a variety of improvements. For instance, the climbing wall assemblies may include connectors to attach the surface panels to the framework, in which the connectors may be mounted substantially anywhere along the front of the framework and at substantially any angle, providing for the securement of climbing panels in various geometries. The climbing wall assemblies may also include braces that may easily be adjusted to a desired length and configuration during construction of a climbing wall. The climbing wall assemblies may also include variable-angle, integral front posts, which provide for the easy and stable securement of climbing panels in various geometries. These improvements provide climbing wall assemblies that may be easily assembled to produce a desirable climbing wall structure having few framework components.

Extendable and retractable support structure is a support structure that can be extended and retracted. The support structure could be linear, such as a post, stud, rafter, beam, or similar. The support structure could also be two-dimensional, such as a floor, ceiling, wall, platform, deck, or similar. The support structure is formed by two strings of trapezoidal links that weave together or interlock together to form a rigid support structure. Each string of trapezoidal links is a flexible member with a plurality of trapezoidal links attached thereto that are evenly spaced by the overall width of each trapezoidal link. Each string of trapezoidal links is wound or winded onto a roll or a roll core. To extend the support structure, the two rolls rotate to unwind the two strings of trapezoidal links in unison wherein each trapezoidal link from one string interlocks between or weaves between two adjacent trapezoidal links on the other string, and vice versa. To retract the support structure, the two rolls rotate to wind in the two strings of trapezoidal links in unison wherein each trapezoidal link from one string unlocks or unweaves itself from between the two adjacent trapezoidal links on the other string, and vice versa.

A system comprises a retractable panel structure, for example a screen/wall/divider/partition that can be rolled up and that can be unrolled. The panel structure comprises a back face (47) and a front face (48) that are spaced-apart from each other. The front face (48) is at least partly formed of an array of strips (23, 40) that are separate from each other and that move apart to allow the panel structure to be rolled up and wherein the back face (47) forms hinges that connect the strips (23, 40) together and that are capable of flexing to allow the said strips (23, 40) to move apart when the sheet is rolled up.

The present disclosure relates to deployable structures, to methods and apparatus for deployment of deployable structures, and to associated manufacturing methods. Such deployable structures suitably comprise components for space structures, such supports for solar arrays, antennas or other similar systems. The deployable structure comprises a lattice element arrangeable in a stowed configuration and a deployed configuration. The lattice element (200) comprises a pre-stressed strip arranged in a clockwise helix (306, FIG. 3a), a pre-stressed strip arranged in an anticlockwise helix (308, FIG. 3a), and a plurality of fasteners (310, FIG. 3a) for rotatably coupling the strips to one another at a plurality of positions distributed along the length of the strips. The fasteners are provided at unequal spacings along the length of the strips such that on deployment the lattice element bends to a curved deployed configuration.

A deformable support apparatus includes a deformable body configured to transition between at least an extended state and a contracted state where a stiffness of the deformable body in the extended state is greater than a corresponding stiffness of the deformable body in the contracted state. The deformable body includes a first member and a second member coupled to and in opposition to the first member, and arranged about a longitudinal axis. In the extended state, the first member has at least a first curved portion and the second member has at least a second curved portion. The at least a first curved portion is a positive curved portion with respect to the longitudinal axis and the at least a second curved portion is a negative curved portion with respect to the longitudinal axis.

A deck framing system includes a perimeter support member that has a joist support wall and a web wall extending perpendicularly from the joist support wall and an overhang wall extending perpendicularly from the web wall. First and second joist support brackets include a joist support portion and a pair of attachment wings, where each one of the pair of attachment wings contacting the web wall of the perimeter support member. First and second joists each include a deck support wall and a lower wall. The deck support walls of the first and second joists are disposed between the overhang wall and the joist support portions, and the lower walls are disposed between the joist support portions and the joist support wall.

A support stand for supporting a volumetric modular unit above the ground is disclosed. The support stand includes a top portion with a top surface for contacting and supporting an underside of the modular unit above the ground. A bottom portion with a bottom surface supports the top portion at an elevation above the ground against the underside of the modular unit. An elevating portion has a top side connected to the top portion, a bottom side connected to the bottom portion, and an elevating span between the top side and the bottom side. A pad is connected to the bottom portion. The pad has a bottom surface for contacting and supporting the bottom portion against the ground, an inner pad perimeter and an outer pad perimeter. The top surface is parallel with the bottom surface. The underside and weight of the modular unit is supported on the top surface.