| 摘要 |
PURPOSE:To reduce the extracting force generated in a lifting means while a carrier box is being tilted by arranging an extraction prevention means composed of a traction cylinder and a connecting member between a chassis and the carrier box in a dump car capable of tilting the carrier box with a lifting means. CONSTITUTION:A lifting means 101 is arranged between a chassis 2 and a carrier box 1, and it is composed of an oil pressure cylinder 103 with its base pivotally supported on a sub-frame 102 and a triangular plate 104 with its top pivotally supported of the tip of the cylinder 103 and with its right end connected to the rear face of the carrier box 1. The base of the traction cylinder 201 is connected to both the outsides of the sub-frame 102, one end of a connecting member 202 is connected to the rod tip, and the other end of the connecting member 202 is connected to the rear face of the carrier box 1 to constitute an extraction prevention means A. Thereby, the traction cylinder 201 and connecting member 202 are aligned on a straight line as the carrier box 1 is titled by the lifting means 101, thus the extracting force applied to the oil pressure cylinder 103 is reduced by the braking force of the traction cylinder 201. |
