| 摘要 |
PROBLEM TO BE SOLVED: To provide a laser plumb bob capable of simply and speedily performing measurement without being affected by natural phenomenon such as wind. SOLUTION: This laser plumb bob is composed of main bodies 41, 41a and a member constituted by implements shown in Fig. 10. It is attached to an upper part of an object to be measured for measurement. A laser main body moves and acts freely centered on a shaft 5 and a suspension part so that the laser main body shows just below always. By measuring an interval between a lower part of the object to be measured and laser beam, measurement can be performed without being affected by natural phenomenon such as wind. The laser plumb bob is composed of main body cases 41 to 41a capable of avoiding wind, the shaft 5, the laser main body, and each mounting base part. COPYRIGHT: (C)2003,JPO
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