| 摘要 |
PURPOSE:To obtain a blowoff port improved in user's convenience by a method wherein a tongue piece is connected to the lattice rib of the rearmost end part so as to be extended therefrom and arranged so that the leading end thereof comes into contact with the inner wall of the rear part of a frame body in a horizontally mounted state and becomes parallel to the exhaust direction in the frame body in an obliquely mounted state. CONSTITUTION:The lattice ribs 12 of an exhaust louver 9 are formed so as to be inclined at an angle of about 10-20 deg. and the tongue piece 13 of the rearmost lattice rib 12 is formed so as to be extended vertically toward the interior of an exhaust port 6. Therefore, even when the louver 9 is changed over to upward exhaust, the exhaust flow in the exhaust port 6 is made smooth. Since a protruding part 14 is formed to the wall of the rear part of the exhaust port 6, by allowing the tongue piece 13 of the lattice rib 12 to get over the protruding part 13 using the elasticity of the leading and of the tongue piece 13, the engagement and fixing of the exhaust louver 9 is brought to an extremely simple constitution and the operation thereof can be also made simple. |
