| 摘要 |
PROBLEM TO BE SOLVED: To prevent the temperature rise in an equipment main body by ventilating through a ventilation hole and reduce working noises leaked outside the equipment main body through the ventilation hole. SOLUTION: A ventilation hole with a plurality of openings (a) is provided on an outer cover 11 of an equipment main body. Two pairs of hook sections 11a, upper and lower, protruded out of the inner face of the outer cover 11 are formed on the inner side of the position of the ventilation holes, and an opening and closing member 50 is supported slidably by the hook sections. Windows 50a are provided correspondingly to the openings (a), and the opening and closing member is connected with a working lever 53 of a solenoid 52 through an arm member 51. When the generation of noises is particular in the equipment main body or when the ventilation is not required or the like, the opening and closing member 50 is driven and moved by the solenoid 52 through the arm member 51 and the ventilation hole is closed. |
