| 摘要 |
PROBLEM TO BE SOLVED: To lower the generation of noise and dust and maintain the work environment by solving the problems of insufficient lowering of the noise and dust. SOLUTION: The grass bag 224 of the lawn mower is composed of a nearly rectangular parallelepiped inner member 242 and a swelling (expandable) outer member 243 covering a part of the inner member 242. The upper face 276, the right and left side faces 277, 278 and the rear face 279 of the inner member 242 are made of an air permeable cloth material, the bottom face (bottom member) 248 of the parallelepiped form is made of an air impermeable material, the front face of the parallelepiped form is opened to form an inner opening 245 and the inner opening 245 is placed facing a mowed grass transfer path 32. The outer member 243 covers the upper face 276, the right and left side faces 277, 278 and the rear face 279 of the inner member 242 with an air impermeable cloth member leaving a space between the outer and the inner members, an outer opening 252 is formed at the side of the inner opening 245 and the outer opening 252 is positioned facing an exhaust returning path 33. COPYRIGHT: (C)2006,JPO&NCIPI
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