| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a pin type coupling device capable of, when two articles are vertically detachably connected to each other with an engaging pin and pin holes, easily aligning the pin holes in both articles to each other to facilitate the engagement and disengagement of the engaging pin, eliminating the need of the delicate lifting by a crane and a wire rope, and easily and safely attaching and detaching two articles in a short time. SOLUTION: Pin holes 12a and 13a are provided in the joint plates 12 and 13 of a casing tube rotary device 2, and a pin hole 25a is provided in the connection bracket 25 of a chuck device 3. An adjusting bolt 16 pivotally supporting the outer peripheral lower side of the connection bracket 25 on the tip 16b thereof is vertically movably screwed to a position lower than the pin holes 12a and 13a of the casing tube rotary device 2.</p> |
