Patent ID: 7100855
Filing Date: 2006-09-05
Classification: B02C,Y10S

Abstract:
1. A shredder for reducing tires to rubber chunks comprising, intermeshing rotary shears, each shear having a plurality of cutting wheels on parallel axes, each wheel having an axially rotatable core rotationally driven by an axially extending hub, the core having a radially extensive central portion and with radially less extensive lateral shoulders on opposite sides of the central portion, a plurality of inwardly truncated pie-piece shaped segments supported by the shoulders and fastened to the central portion of the core and whose outer periphery extends beyond the radially extensive central portion as a pair of serrated disks, the outer periphery of each segment capped by a removable two-piece blade, each blade having a removable outwardly facing blade member and an inwardly facing blade member to which the outwardly facing blade member is fastened, the combined width of the blade members approximately equal to the width of a pie-piece segment, whereby shearing action between intermeshing cutting wheels occurs at least between the outwardly facing removable blade members.