| 摘要 |
<p>A structural member includes a first meshing element having two prisms disposed in a side-by-side arrangement wherein a space between the prisms defines a first meshing element engagement cavity. Each prism in the first meshing element is connected to an adjacent prism via an arm of a hinge disposed intermediate the prisms. The structural member includes a second meshing element having two prisms disposed in a side-by-side arrangement where a space between the prisms defines a second meshing element engagement cavity. Each prism in the second meshing element is connected to an adjacent prism via an arm of a hinge disposed intermediate the prisms. A prism of the second meshing element is configured to be retained in a first meshing element engagement cavity and wherein a prism of the first meshing element is configured to be retained in a second meshing element engagement cavity such that the first and second meshing elements are movable into locking engagement and each meshing element extends substantially parallel to the other.</p> |
