| 摘要 |
<p>PROBLEM TO BE SOLVED: To smoothly regulate the rotating position of a connecting member by forming each opposed surface to a connecting member of a vertical pair of nipping parts of a regulating screw continued to both end parts of a neck part piercing the connecting member to nip the connecting member into a tapered surface narrowed toward the neck part side. SOLUTION: A rotating position of a connecting member 5 mounted on a fixed member 2 can be regulated by properly rotating a regulating screw 7. In order to smoothly rotate the regulating screw 7 regardless of the rotating position of the connecting member 5, each opposed surface to the connecting member 5 of the upper and lower nipping parts 7b, 7c of the regulating screw 7 is formed into a tapered surface narrowed toward the neck part 7a side of the regulating screw 7. Thus, when the connecting member 5 is rotated by the regulating screw 7, the connecting member 5 can be prevented from collide with the peripheral edge of the opposed surface to work a bending moment onto the regulating screw 7, and the regulating screw 7 can be easily rotated to smoothly regulate the rotating position of the connecting member 5.</p> |
