| 摘要 |
PROBLEM TO BE SOLVED: To facilitate opening and closing at an opening by a simple configuration for take in and out an object to be measured. SOLUTION: An accommodation section 11 is provided at the rear side of a side 7, and a movable switching member 13 is provided inside the accommodation section 11. Upper and lower slide members 15 of the switching member 13 are interlocked by a fixing glass plate 16, and a movable glass plate 17 where a knob 19 is mounted can slide in the switching member 13 along a guide rail 14 that is extended to the front side of the upper and lower slide members 15. The switching member 13 is taken out of the accommodation section 11, and further the movable glass plate 17 is taken out in the switching member 13, thus blocking the side 7. When the side 7 is to be opened, the knob 18 is brought into contact with the end section of the fixing glass plate 16 for pressing the fixing glass plate 16 by sliding the movable glass plate 17 along the guide rail 14 backward, thus pushing the switching member 13 into the accommodation section 11 for opening. COPYRIGHT: (C)2003,JPO
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