| 摘要 |
PROBLEM TO BE SOLVED: To allow easy installation of a rear fan guard for covering air-blowing blades.SOLUTION: A rear fan guard 86 is a fan guard for covering air-blowing blades, and is installed in a casing with a motor fixed thereto. Three positioning projections 90a, 90b and 90c are arranged in the casing. Three positioning holes 94a, 94b and 94c corresponding to the projections 90a, 90b and 90c are arranged in the rear fan guard. The projections 90a, 90b and 90c and the holes 94a, 94b and 94c have circular, triangular and square shapes, respectively. The projections and the holes of the same shape engage with each other, to position the rear fan guard 86 in a predetermined position. |
