| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an adjustable stand which has a coarse adjustment function capable of adjusting a height and an angle of a project apparatus, etc., quickly to near positions where they are supported, and a fine adjustment function capable of accurately adjusting them to positions to be adjusted. SOLUTION: The stand comprises an adjusting bolt, a supporting part provided on the adjusting bolt to support the apparatus, and an adjustment member provided on the adjusting bolt and connected to the supporting part to adjust the height. An upper U-shaped groove is formed on the upper surface of the adjustment member, its one end is formed in a semicircular shape and a first screw thread is formed on the inner wall of the semicircular shape. A lower U-shaped groove is formed on the lower surface of the adjustment member, its one end is formed in a semicircular shape, the semicircular aperture is opposed to the semicircular aperture of the upper part U-shaped groove, the semicircular shape location is opposed vertically at semicircular one end of the upper part U-shaped groove, and a second screw thread is formed on the inner wall. When the screw threads of the upper and lower U-shaped groove wall surfaces of the adjustment member come in contact with an adjusting bolt closely, the supporting part is fixed. When the screw threads separate from the adjusting bolt, the adjustment member and the supporting part slide freely.</p> |
