| 摘要 |
PROBLEM TO BE SOLVED: To provide a furrow opening wheel capable of readily changing only furrow opening blades, even in the case of abrasion of the furrow opening blade which is directly brought into contact with soil to construct a furrow and suppressing a manufacturing cost by simplifying the structure of a change part and reducing the number of parts. SOLUTION: Since a furrow opening blade 2 is divided into plural parts and detachably fixed to recessed parts 3e on the outer periphery of a furrow opening disc 3, only the furrow opening blades can be replaced while holding a driving shaft 36 in the furrow opening disc 3. Consequently, the disassembly of the driving shaft 36 and the furrow opening disc 3 is not required in a changing operation and the changing operation is ready. Further, a structure in which in order to fix the furrow opening blade 2 to the furrow opening disc 3, rolling compaction parts 3d for compacting the upper part at the top of the furrow formed on soil are nipped from both the sides of the furrow opening blade 2 and fixed is not needed, the number of parts are reduced and the manufacturing cost of the whole furrow opening wheel 1 can be suppressed.
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