| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce the interval from the lower surface of a roof panel to the connection part of an air duct by disposing the tube bodies of the air duct without bypassing a cross bar. <P>SOLUTION: The cross bar 21 is installed in the space between the roof panel 13 and the indoor panel 15 of a cab 11. The horizontal duct part 19 of the air duct 17 is extended through the space. The cross bar 21 is formed of a section steel having a web and a rib 21b. A through hole 22 is formed in the rib 21b. The tube bodies 19a, 19b of the horizontal duct part 19 of the air duct 17 are so secured to the rib 21b as to correspond to the through hole 22. The tube bodies 19a, 19b of the horizontal duct part 19 are connected to each other through the through hole 22. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
