| 摘要 |
<P>PROBLEM TO BE SOLVED: To miniaturize an abnormality stop device for at least stopping drive of an opening and closing machine by detecting a plurality of abnormalities of a shutter curtain, in an electric shutter apparatus. <P>SOLUTION: An abnormality stop device 10 comprises a switch box 12 in which an abnormality detection switch 15 is mounted, and a detection rod 17 for switching the on-state and off-state of the abnormality detection switch 15. The detection rod 17 is made of a long body that is directed in one direction. The detection rod 17, which is disposed along an undersurface plate 4a of a shutter case 4, detects different kinds of abnormalities of the shutter curtain 2 at both ends based on an intermediate portion of the detection rod 17. <P>COPYRIGHT: (C)2013,JPO&INPIT |
