| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a support for holding and positioning a load object. <P>SOLUTION: This support has a base part 10 and a support arm 12. The support arm is rockably supported around a vertical first shaft 24 and a horizontal second shaft crossing with the first shaft between end parts in its longitudinal direction, and carries the load object in one end part of the second shaft, and carries a counterweight 18 in the other end part of the second shaft. The load object is arranged on a first connecting arm 14 turnably supported by the end part of the support arm. The counterweight is arranged on a second connection arm 16 rockably supported by the other end part of the support arm. An interval Ln between an engaging point N of the load object and the first connection arm and a third shaft 36 is set equal to an interval between the third shaft and the first shaft, and an interval Lg between the center of gravity G of the counterweight and a fourth shaft 38 is set equal to an interval between the fourth shaft and the first shaft, and the connection arms 14 and 16 are inversely joined in the direction by the support arm. <P>COPYRIGHT: (C)2010,JPO&INPIT |
