| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a simple structural casing with a shutter door, which can enhance the work characteristics of assembling the shutter door and a guide roller to the casing, and which can facilitate inspection, repair, etc. <P>SOLUTION: A guide shaft 40 is attached to the casing 5 in such a manner that an attachment position can be changed between a descent position to be indicated by an imaginary line forming a gap, allowing the passage of a sill 7 of the shutter door 6, between a guide roller 39 and a top rail 2a of the casing 5, and an ascent position to be indicated by a solid line forming a narrow gap S2, inhibiting the passage of the sill 7 of the shutter door 6, between the guide roller 39 and the top rail 2a. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
