| 摘要 |
PROBLEM TO BE SOLVED: To provide a straw cutting blade with uneven blade edge parts each arranged on a liner line in the blade edge forming direction on one plane in spite of having uneven blade edge parts, capable of shredding straw with a razor like cutting feeling. SOLUTION: This invention relates to the straw cutting blades H installed on countering positions of a threshing drum of a threshing machine, wherein the blade is composed of a channel-shaped member obtained by folding a sheet and parallelly installing protruding blade plates 2 on either side of an attaching part 1, and provided with a contiguous uneven blade edge part 3 comprising tops 3A and valleys 3B from the base ends to the protruding top parts, the uneven blade edge part 3 of the blade plate part 2 is arranged to locate the tops 3A and the valleys 3B on the same plane and the tops 3A and the valleys 3B are arranged on the linear line in the blade edge forming direction by observing from the plate surface direction (the direction watching the thickness of the plate) without forming each of the tops 3A and the valleys 3B of the blade edges as move in and out from either side of the plate in observing from the plate surface direction (a direction watching the thickness of the plate). COPYRIGHT: (C)2005,JPO&NCIPI
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