| 摘要 |
PURPOSE:To improve the maintenance work of a communication equipment by devising an outermost member protecting the equipment from the surrounding environment so as to move in parallel or almost in parallel with a plane including an optical axis of the equipment main body. CONSTITUTION:A sun visor 4 whose cross section is formed in a reverse concave shape to cover both side faces and an upper face of a communication equipment main body 1 is moved forward while being supported and guided by linear rails 5 fitted respectively onto both side faces of the communication equipment main body along the optical axis direction and is usually not movable by a screw 6 fastened to a female screw 10 of the communication equipment main body 10. In order to implement the maintenance of the optical spatial communication equipment, at first the screw 6 is loosened to release the screw contact state and an open/close cover 2 appears by sliding the sun visor 4 forward and an opening 1b is exposed by opening the cover, and then the maintenance is immediately started. |
