| 摘要 |
PROBLEM TO BE SOLVED: To provide a frame for a movable crusher, the workability and quality of which can be improved when manufactured and the weight and manufacturing cost of which can be surely reduced. SOLUTION: First and second planar parts 252, 253 of a main member 25 constituting main frame 21 are formed by bending a plate-shape member, or the like. As a result, the member 25 can be manufacturing without troublesome welding work so that the workability and quality can be enhanced. Since the member 25 consists of a portion having an L-shape in cross section and a portion having U-shape in cross section, the weight of this frame 20 can be surely reduced in comparison with the case of using a conventional box-shaped member having a closed cross section or hollow prismatic shape steel. The weight saving of the frame 20 therefor can be promoted, the workability is improved and consequently the manufacturing cost can be reduced drastically.
|
