| 摘要 |
PROBLEM TO BE SOLVED: To provide a case constitution of easy die drawing after resin molding in a blow unit having a bell-mouth holding type structure. SOLUTION: In a blow unit, a case structure comprising a bell-mouth 3 provided with an air guide port 30 to introduce air from an upper case 1 to a blow fan held between both cases 1, 2, and assembled by tightening both cases 1, 2 is provided between the upper case 1 as an air introducing part and the lower case 2 as an air lead through part containing the blow fan. On an outer wall of the upper case 1, an installation boss part 13 on which a servo motor for driving an inner/outer air change over door can be installed is provided to be protruded, and a duct is composed by combination of a first member 41 extended from the bell-mouth to cover the installation boss part 13, and a second member 42 extended from the lower case 2 in the same direction as the first member. |
