| 摘要 |
PROBLEM TO BE SOLVED: To provide an opening and closing body device with improved reliability of an obstacle detection signal that is wirelessly sent.SOLUTION: A receiving sensitivity level of a detection signal received from an obstacle detector 40 is visibly displayed. Thus an operator can move a detection signal receiver 20 in a shutter case 11 while visually inspecting the detection signal level displayed on a level display device 23, select a position where the detection signal strength level is the highest and dispose the detection signal receiver at the position. Therefore the work of the operator can be considerably reduced. The level display device 23 comprises an LED light emitting device and/or a liquid crystal display element, which are installed on the detection signal receiver 20, a wall surface that surrounds an opening, side faces of an attention light and a fire-retarding door, a remote control device switch 30 or the like.SELECTED DRAWING: Figure 1 |
