| 摘要 |
PROBLEM TO BE SOLVED: To solve problems in a mowing blade in which the size becomes smaller whenever polishing a blade edge in a cut blade and the mowing efficiency is lowered and the cutting edge polishing is difficult particularly in a chip saw, accordingly a cut-stopped mowing blade is replaced by preparing for several pieces of blades for replacement, however several pieces of heavy and bulky blades have to be carried out, and a burden of trouble and time is large though the blade edges are polished in a mass, and only the blade edge part is used and the remainder is thrown away, and therefore the utilization is desired in terms of natural resources and cost.SOLUTION: Multiple U-shaped members for receiving spare blades and claw holes are then alternately provided in an outer circumferential part of a mowing blade body in order to detachably replace only a cut-stopped blade edge, and the spare blades with a pressing member having L-shaped claws fitted to the claw holes are collectively sandwiched to enable detachment reliably and easily. Also, the spare blades are so small that a risk of fall loss and a slippage during replacement of the spare blades are predicted, and thereby temporary fixation is made by magnetizing the spare blades to enable smooth replacement work.SELECTED DRAWING: Figure 1 |
