| 摘要 |
PROBLEM TO BE SOLVED: To provide a shutter providing an excellent operability and preventing a cost from being increased. SOLUTION: A storage port 11 for the shutter 12 is provided in slit shape on one side of an operation panel (protected part) 13, an extendable guide pin 15 parallel with the storage port 11 is connected to the shutter 12, and the extendable guide pin 15 is slidably fitted into a loop-like guide rail 14 installed in a panel with the upper end of the shutter inserted into the storage port 11. The width of the guide rail 14 is continuously varied in sliding direction, and the extendable guide pin 15 is energized in longitudinal direction. According to the automatical slidable movement of the extendable guide pin 15 in the direction for increasing the width of the guide rail 14 due to the extension of the extendable guide pin 15, the shutter 12 connected to the extendable guide pin 15 can automatically travel through the storage port 11. COPYRIGHT: (C)2003,JPO
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