| 摘要 |
PROBLEM TO BE SOLVED: To provide a blade attachment structure of a lawn mower, capable of absorbing an impact load by moving a friction member and easily centering a lawn mowing blade.SOLUTION: A blade attachment structure 20 of a lawn mower includes: a drive hub 26 installed on an output shaft 16; a friction member 27 transmitting driving force of the drive hub 26 to a blade holder 28. A hub curved surface 36 of the drive 26 and a friction curved surface 38 of the friction member 27 are formed while curved so as to slide mutually. In a space 57 between the blade holder 28 and the drive hub 26, an energy absorbing member 32 is arranged. The energy absorbing member 32 keeps the shape during normal work and is deformed in application of a load exceeding a predetermined value. |
