Patent ID: 7712492

Claim:
A planing blade axle comprising: an axle body having blade assembly surfaces thereon, each of said blade assembly surfaces having a plurality of through-holes formed therein, each of said plurality of through-holes having a tapped hole extending into said axle body the tapped hole being threaded; a plurality of blades assembled externally onto said axle body in a predefined pattern, each of said plurality of blades having cutting edges at a periphery thereof, each of said plurality of blades having a tapered hole formed centrally therein such that a narrow diameter of said tapered hole is at a bottom of the blade and a wide diameter of said tapered hole is away from said bottom of the blade, the blade having an opening at a top thereof, said opening extending to a shoulder formed at said wide diameter of said tapered hole, said shoulder extending radially away from said tapered hole; and a plurality of bolts each a threaded shank and a tapered portion extending from an end of said threaded shank and a flange extending outwardly of said tapered portion opposite said shank, said threaded shank received by the tapped hole. Said plurality of bolts respectively extending through the opening and the tapered holes of said plurality of blades such that said flange is juxtaposed against said shoulder so as to fix the blade onto said blade assembly surfaces, said blade assembly surface having a recessed portion formed between adjacent blade assembly surfaces.