| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To enhance the operational environment of an operator by restraining the noise of an air conditioner, arranged in a cab bed, from being transmitted to a cab side. <P>SOLUTION: A cab bed spacer 14 is provided on the cab bed 12 of a hydraulic excavator 1, and flanges 13 and 15 of them are disconnectably connected together. The cab 17 is provided on the spacer 14 via a vibration-proof mount 17B etc. The air conditioner 19 for performing air-conditioning in the cab 17 is provided in the cab bed 12, and a soundproof cover 34 for insulating spaces 12F and 14F is provided in the flange 15 of the spacer 14. This enables the soundproof cover 34 to be easily arranged by utilizing a connection part between the cab bed 12 and the spacer 14, and can restrain the noise of the air conditioner 19 from being transmitted into the cab 17. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
