| 摘要 |
<p>PROBLEM TO BE SOLVED: To make a micro adjustment of a preset angle of a rotary stand by arranging a return stopper override means to free the rotary stand to adjust a micro angle to an optional prescribed position. SOLUTION: When it is necessary to change a miter angle, the first end 138 of a lever 134 is pulled upward by overcoming energizing force of a spring member 90, and a return stopper 106 is removed from a peripheral edge surface of a support stand. Then, a rotary stand 58 can freely turn to an optional desired adjusting position with a vertical shaft as the center. Next, a peninsular projecting member 82 is pushed, and after the rotary stand 58 is positioned so that the return stopper 106 comes to the vicinity of a desired return stopper receiving recessed part 42, the lever 134 is released, and the return stopper 106 is entered into its return stopper receiving recessed part 42.</p> |
