| 摘要 |
PURPOSE:To contrive generalization of a side casing, by so constituting that both the edges of the front of a casing is provided with an L shape bent part, a support-cum-cut raise is made to protrude on the rear edge of a frame blower, and a side casing is connected with a slit as whole circumference is in a U shape cross section. CONSTITUTION:An L shape bent part-cum-slit 17 is formed on both the edges of the front of a casing 9, a support 28 cum a cut raise 29 is provided on the rear edge of a blower chamber of a frame 1 in a protruding manner outward from a side plate 2. Slits 31 and 32 and convex part 33 are formed on a side casing 30 the whole circumference of which is processed in a U shape cross section. After assembly of the frame 1 in this constitution, the convex 33 of the side casing and the slit 32 are installed by connection with the slit 17 and the cut raise 29 of the support 28 respectively. A convex part of a piping cover not illustrated in a sketch is connected with the slit 31. With this, installation of the side casing is made easy, and a common side casing cam be used and standarized even if its height is varied. |
