| 摘要 |
<p>The scaffolding assembly (30) consists of a rigid work platform that is supported using horizontal, diagonal, and vertical steel posts (31) and through the use of brackets (45). The posts are all horizontally underpropped, and are connected together using a block. The use of several of these blocks allows multiple runs of scaffold boards (40) to be linked up. The scaffold boards are also horizontally supported and underpinned. The boards consist of long wooden planks with vertical securing holes (57) bored into their ends. The holes are use in conjunction with pins to fix the boards to the support blocks.</p> |
