| 摘要 |
<p>A windscreen wiper is assembled from a rigid elastic bow held taut by a strap linking the bow ends and to which the wiper blade is attached. The components are engaged by tooth and fork or tooth and slot engagements so that the wiper blade itself is not longitudinally stressed. Pref. the bow is made of 'Lexan' (RTM) polycarbonate; the strap is made of 'Rilsan' (RTM) polyamide (e.g., polyamide-11) opt. reinforced internally with (metal) wire or tape; and the blade is of silicone rubber. The arm on which the wiper bow is supported from a pivot is pref. made from a transparent synthetic matl. such as 'Lexan' (RTM) polycarbonate. The design reduces wt., assembly costs and interference with driver's vision.</p> |
