| 摘要 |
<p>This hoisting machine (M1) is provided with: a rotation shaft (19) to which a sheave (7) is fixed with axial rotation and which is supported by bearings (4, 5); and a spider (18) that fits the distal end section (19f) of the rotation shaft (19). The distal end section (19f) has formed thereon a distal end section outer peripheral part (19e) for fitting, and a convex part (19t) for fitting, the convex part extending from the distal end side in the axial direction. The spider (18) has formed thereon a convex-part-fitting part (18f) that fits the outer peripheral side of the convex part (19t) on the rotation shaft side, and a rear-end-side extending part (18b) that fits the distal end section outer peripheral part (19e).</p> |
