| 摘要 |
PURPOSE:To eliminate the necessity of providing longitudinal groove for a collector rod and to prevent its material from bending, twisting, cambering, etc. by a constitution wherein a duct type trolley is composed of two trolley pieces. CONSTITUTION:A duct type trolley 10 comprises two longitudinally splitted right and left trolley pieces 12, 12'. These trolley pieces are composed of belt bodies 16 each of which has an almost semicircular main concave part 14 in which a collector run and a collector rod penetrates downward. The belt bodies 16 have a vertical collar 18 each which extends vertically toward the upper edge and are joined with each other when the right and left trolley pieces are set. And these vertical collars have semi-circular auxiliary concave parts 22 between which a guide rod 20 penetrates. |
