| 摘要 |
A folding belt system (10) having the head (13) and tail (12) pulleys twice the width of the support idler rolls (32,33) and having a transition length of about 7 to 15 times the width (W) of the belt (11) between the fold or hinge lines, where transition width support rolls (32) are located. The folding conveyor belt (10) is composed of a central belt section which has specially constructed flexible areas at each edge extending longitudinally the length of the belt to which are attached cover flaps (34,46). The cover flaps (34,46) completely enclose the load while it is conveyed. This reduces spillage, dust, and contamination while providing highly enhanced conveying capacity. In it's preferred embodiment the fold belt (11) is constructed by suitably providing the top cover of a fully cured conveyor belt with longitudinal grooves (30) formed by slitting and removing a strip of rubber at the appropriate locations to form preferentially flexible longitudinal hinge areas in the belt (11) with the dominions outside the hinges comprising the cover flaps (34). |
