ROTARY BLADE FOR LAWN MOWER AND LAWN MOWER USING SAME

摘要

[Problem] To provide a nylon-cord rotary blade for a lawn mower, said rotary blade being provided with a nylon-cord extension-length adjustment mechanism with a simple structure. [Solution] This rotary blade is provided with the following: a retention member (100) that is attached to an attachment shaft (14) and rotated; and cord-shaped cutting members (4). The base end of each cord-shaped cutting member (4) is held by the retention member (100), and the tip end of each cord-shaped cutting member (4) is extended radially outwards. The retention member (100) is provided with the following: a coupling part (130) to which one end of each cord-shaped cutting member (4) is coupled; and a plurality of winding parts (140a, 140b, 140c), lined up in the circumferential direction of the retention member (100), around which the cord-shaped cutting members (4) are wound.