| 摘要 |
A conveying apparatus comprises a modular belt (70) having a plurality of modules (73, 80) connected to adjacent modules (73, 80) and articulated by pivot rods (76) that extend through openings in the link ends (72) of the modules (73, 80). The openings extend transverse to the direction of belt travel. The apparatus also includes a drive sprocket having a plurality of teeth (58, 61) disposed around its perimeter. Each tooth (58, 61) has a center driving surface (64) and a link end driving surface (67). The teeth (58, 61) are disposed such that each belt module (73, 80) may be driven in either direction from the center by one of the teeth (58, 61) and simultaneously driven at a link end (72) by one of the other teeth (58, 61) such that there is positive engagement with each belt module (73, 80) by two teeth (58, 61). <IMAGE> |
