| 摘要 |
<p>PROBLEM TO BE SOLVED: To allow positioning of a weight member in relation to a weight case with a relatively simple configuration.SOLUTION: By fastening screw parts 41a of case fixing bolts 41 inserted from beneath an upper frame 20 to case screw holes 33a in pedestal parts 33 of a weight case 31, the upper frame 20 and the weight case 31 are fastened and fixed. Positioning boss parts 41b that extend upward projecting from the pedestal parts 33 are provided on the more distal side than the screw parts 41a of the case fixing bolts 41. By inserting the positioning boss parts 41b into positioning holes 35a of a weight member 35, the weight member 35 is positioned in relation to the weight case 31 and placed on the pedestal parts 33.</p> |
