Patent ID: 6811033
Filing Date: 2004-11-02
Classification: B07B,F16B

Abstract:
A fastening means for screening panels, which fastening means includes:fasteners, each fastener as a combination structure having a metal bolt as a tensile component and a polymeric holding component which has a ledge for holding down a panel; and a stringer for use as a joist in a screen frame, the stringer comprising a strip of cross section having a narrow width and depth sufficient to carry vertical reciprocating loads, presenting neither a top nor a bottom web, but a plurality of spaced apart platforms; each platform presenting a fastening formation which receives the tensile component, for securing a panel and a support area around or adjacent the fastening formation for supporting the panel; and characterized in that there are a plurality of spaced apart separate fasteners and in that each platform is in the form of a disc having a hole in its centre and the hole is immediately above the centroid of the stringer, fixed directly to the stringer at the upper surface of the stringer with an opening in the stringer immediately below the platform, and the bolt passes through the polymeric holding component and projects above the top of it.