| 摘要 |
PROBLEM TO BE SOLVED: To realize an improve weight balance by providing a direction change member (roller) which changes the direction of a power transmission member to energize a turning arm on a base side in a stand part including the turning arm supported in an upper part of a base like a support column so as to oscil late freely and vertically. SOLUTION: A stand part 7 including a turning arm 9 supported in an upper part of a base part 5 provided with a roller for travel 6... so as to oscillate freely is provided in a stand 1 which supports a microscope for operation 3. Moreover, an equipment arm 11 which is fitted in the turning arm 9 rotatably around an axial line A2 is provided in the stand part 7, and the microscope for operation 3 is supported at a tip of the equipment arm 11. A power storage member 12 is arranged in the turning arm 9 so that force directed to a support point 15 of the base part 5 acts on the turning arm 9 through a flexible power transmission member 13 which is wound around a direction change roller 14, and the support point 15 is provided so as to travel and be adjustable freely along a longitudinal groove 17. |
