| 摘要 |
PROBLEM TO BE SOLVED: To provide a scavengery truck capable of reducing noise generated from the blowout part of a blower. SOLUTION: With regard to noise generated at the time when the circulation air emitted from the blowout part 8 of a blower passes through a guide member 9 and noise generated from the blowout part 8 at the time when the blower is driven, the length of inside air space is set so that the air passage is abruptly expanded once in a noise-reducing device 10 and thereafter, it is abruptly contacted at the opening 16a and further, the length of the inside air space is effective to attenuate the chief wavelength of the noise generated from the blowout part 8 of the blower. Hence, noises interface with each other to reduce sound. In this way, even if exhaust air is emitted from the opening 16a to the outside, noise which leaks outward becomes extremely small.
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