| 摘要 |
PROBLEM TO BE SOLVED: To easily determine whether or not a clearance width between a blade of a fan and a bell-mouth is a predetermined value or larger. SOLUTION: This air blower includes the bell-mouth 34 and the fan 32 for arranging the blade 49 in the bell-mouth 34, and includes a projection 62 projecting by a predetermined height from the bell-mouth 34 in a clearance between the blade 49 of the fan 32 and the bell-mouth 34. The projection 62 is separated from the bell-mouth 34. The projection 62 is formed thinner in a base end connected to the bell-mouth 34 than a chip. COPYRIGHT: (C)2009,JPO&INPIT |
