Patent ID: 7254891

Claim:
A lawn cutting device comprising: a handle having a hollow connecting part that has a bottom end portion defining a bottom opening; a driving member having an output shaft that is received in said connecting part of said handle and that extends outwardly through said bottom opening; a blade-mounting seat spaced apart from said bottom end portion of said connecting part of said handle, and aligned coaxially with and secured to said output shaft, said blade-mounting seat including a cylindrical body that has top and bottom ends and that is formed with a flange extending radially from said top end of said cylindrical body, and including a sleeve that extends between said top and bottom ends of said cylindrical body, that is sleeved on said cylindrical body, and that cooperates with said flange to define a gap therebetween; a blade member mounted on said blade-mounting seat; and a protecting member including a cup-shaped body that is coaxially aligned with and that extends from said blade-mounting seat, and that defines a recess which receives said bottom end portion of said connecting part of said handle therein, said cup-shaped body having a base portion that extends fittingly into said gap between said flange and said sleeve, and a truncated-conical portion that diverges from said base portion and that defines said recess, said blade-mounting seat further including a fastening plate that is spaced apart from said bottom end of said cylindrical body and that is fastened to said output shaft for sandwiching said blade member between said fastening plate and said bottom end of said cylindrical body, said sleeve being sandwiched between said blade member and said base portion of said cup-shaped body upon fastening of said fastening plate to said output shaft.