| 摘要 |
<P>PROBLEM TO BE SOLVED: To surely discharge drain of an air-conditioning unit to the outside by eliminating a hose crushed or damaged when a floor member makes a tilting motion. <P>SOLUTION: The air-conditioning unit 22 is provided with front and rear drain outlets 22D and 22E for discharging the drain, produced inside, to the downside of the floor member 10; a rotary frame 6 is provided with a first drain receiver 23 which receives the drain discharged to the downside from the respective drain outlets 22D and 22E; and a discharge hose 24 for discharging the collected drain to the outside is connected to the first drain receiver 23. Thus, the rotary frame 6 and the air-conditioning unit 22 are not connected to each other by means of a long hose as in the case of a conventional technology; and the drain of the air-conditioning unit 22 can be collected into the first drain receiver 23 on the side of the rotary frame 6, and discharged to the outside of upper machinery 4 from the drain receiver 23 through the discharge hose 24. <P>COPYRIGHT: (C)2009,JPO&INPIT |
