| 摘要 |
PROBLEM TO BE SOLVED: To solve problems in which utilization of a bush cutter is required, because weeds rapidly grow after these weeds are reaped and fatigue of the human body is developed by weight of disk blades and operation carried out while shaking the blades to left and right and these conditions are not improved even if rotation of the engine is strengthened. SOLUTION: In the blades of the bush cutter, a rectangular base (Fig.1) meaning a rectangular plate for attaching the blades is created and left and right blades (Fig.2) are exchanged if these blades become useless. As a result, waste losses are eliminated and resource is saved and utility value is largely changed. COPYRIGHT: (C)2004,JPO&NCIPI
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