| 摘要 |
The frame assembly comprises broadly two vertically spaced horizontally extending frame members (12) interconnected by two horizontally spaced vertically extending frame members (11) thereby forming a rectangle. Each of the members has a central channel opening to one face of the member and two side channels, which are positioned, on each side of the central channel. The horizontal member has the base webs of the side channels removed at the ends thereof (18). By contrast the vertically extending member has the base web of the central channel removed at the ends (8). The configured ends of the horizontal and vertical members provide complementary mating formations (19, 9) for the attachment of the horizontal (12) and vertical (11) members. Typically, attachment of the horizontal (12) to the vertical (11) members occurs by means of fastening elements which extend in three mutually orthogonal axes increasing the axial and torsional load bearing properties of the frame assembly.
|
