| 摘要 |
<p>A generally cylindrical structural member comprising four thin high-tensile heat-treated stainless steel spring strips (1-4) of the type used in the manufacture of flexible measuring tapes, flexibly joined at their adjacent edges by vinyl adhesive tape (5 and 6) to create a hinge (7) between the adjacent edges of the strips (1-4), each strip (1-4) having a curved cross section so that the connected strips form a cylindrical structural member when the free edges (8 and 9) of the outermost strips (1 and 4) are overlapped and connected by a binding strip (12) carrying a locking pin (13) which engages holes (10 and 11) formed in the overlapped edges to hold the overlapped edges in the assembled condition to form a rigid structural member, such as a tent pole.</p> |
