| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a gate device for safely and smoothly opening-closing the doorway. <P>SOLUTION: A fixed column 11 is erected on both sides of the doorway, and a movable column 12 is slidably installed in the vertical direction to these fixed columns 11. One or a plurality of control bars 13 and 14 are extended between these movable columns 12. The movable columns 12 are slid upward, and the control bars 13 and 14 are lifted upward, and the passing of the doorway is permitted. While, the movable columns 12 are slid downward, and the control bars 13 and 14 are lowered downward, and the passing of the doorway is prohibited. A control part 50 detects the existence of an object positioned between the two fixed columns 11 and between the two movable columns 12, and controls opening-closing operation in response to its detecting result. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
