| 摘要 |
<p>The frame is constituted from sections (1,2,3), having internal horizontal and vertical ribs, bolted at their ends with connecting casings (5,6,7) forming a frame. The frame is fixed to the rear wheel by an interchangeable triangulation composed of struts (13,19,31) and ties (12,18,30). The triangulation is mechanically fixed to the frame by bosses (6b,6c) and the clevis (7c). The connecting casings joining the sections, the struts and the ties are moulded in a thermoplastic material with a partially aromatic matrix. The struts and ties are constituted of sections of thermo hardening resins and are co-extruded in a thermoplastic coating. The coating has a partial aromatic matrix, whose width varies between 0.5 mm and 12 mm, and contains a percentage by volume of elastomer between 0.1 and 10%.</p> |
