Tire rasp blade and assembly
AssigneeB & J Manufacturing Company
InventorAnthony Collins
Life of this patent
Estimating the term…
Abstract
A rasp blade 200 has cutting teeth 130, 132, 134, 136, 140 arranged along the outer perimeter of the blade and having a variable radius. The radius is raised for the teeth 130, 132, 134, 136 at either end of the blade. The radius is lower for the teeth 140 at the center of the blade 200. The radius variation is determined by the rasp blade cutting diameter and the angle that the blade 200 is to nest on the end plate of the hub assembly in which the blade is used. The blade may extend from 30° to 90° with the preferred sizes being 45° or 90°. At least three apertures 148 are provided in each blade to ensure that the failure of any one pin holding the blade in the hub assembly does not result in catastrophic damage to the hub assembly.
Claims11
A rasp blade for buffing tire treads including an arcuate substantially planar base, a row of teeth extending along a working peripheral edge from one end to another end of said base and means for fixing said base into a rasp blade hub assembly, wherein said arcuate base extends substantially not more than 45° and said row of teeth extends along an arc having a variable radius from said one end thereof to said other end thereof, said radius being measured from the rotational axis of said hub assembly and said variable radius being greater at said ends and decreasing towards the center of the blade.
A rasp blade for buffing tire treads including an arcuate substantially planar base, a row of teeth extending along a working peripheral edge from one end to another end of said base and means for fixing said base into a rasp blade hub assembly, wherein said row of teeth extends along an arc having a variable radius from said one end thereof to said other end thereof, said radius being measured from the rotational axis of said hub assembly with which the rasp blade is used, said variable radius being greater at said ends and decreasing towards the center of the blade.
Dependencies are inferred from the claim text.