| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique that reduces a risk that a function of a traffic signal controller will be damaged even in a situation of the traffic signal controller being submerged.SOLUTION: A door body 41 of a main door 40 is a lid-shape, and a frame-shaped packing 44 is attached to an outer peripheral edge of an inner side (back side) of the door body. A reinforcement rib 47 is attached along a frame inner periphery of the packing 44. In a state of the door body 41 being closed, the packing 44 of the main door 40 and an outer periphery fence rib of a housing body are at opposite positions, and in a state of a lock 60 for the main door being fixed, the packing 44 and the outer periphery fence rib are in firm close contact. As the outer periphery fence rib is a rib-shape, the outer periphery fence rib is in contact and pressed with the packing 44 in a line such that it makes inroads into the packing 44.SELECTED DRAWING: Figure 4 |
