B/j Manufacturing Co., Inc.

Wayne E. Jensen

Wayne E Jensen

Charles K Stanfield

A tire rasp blade is provided with an elongated planar body having a working portion comprising a plurality of uniformly and closely spaced teeth which define an arcuate working perimeter. Each of the teeth has a base and a working edge and is separated from neighboring teeth by generally elliptical primary cutouts which are oriented normal to the tangent of the working perimeter. The teeth are preferrably monolithic and of a uniform size and shape, and are both angularly set and laterally displaced relative to the plane of the blade body.

Tire rasp blade

A rasp hub assembly for use in a tire buffing machine is disclosed. The hub assembly includes two end plates, and a set of tire rasp blades and spacers arranged in alternating circumferential rows. The blades and spacers have conforming nonplanar elongated bodies, with the blades nested with adjacent spacers. The resulting rasp hub assembly allows the use of an even or odd number of rasp blades in each row, and provides various benefits further described in the specification.

Bent blade and spacer tire rasp hub assembly

A tire rasp blade for use in a tire buffing machine having a rotating hub. A set of rasp blades is arranged in a plurality of circumferential rows. Each of the blades has a non-planar elongated body with generally planar portions, and an arcuate working edge having teeth which extend in a direction generally parallel to the direction of hub rotation. The working edge includes two elliptical-shaped segments.

Compound elliptical tire rasp blade

A tire rasp blade has a planar body portion and a working edge portion. The working edge comprises a combination of adjacent, or closely aligned teeth and spaced teeth. The trailing edges of any one adjacent tooth is displaced from the plane of the body portion to one side of the blade and the leading edge of the next following adjacent tooth is displaced to the opposite side of the blade.

A tire rasp blade is provided with an elongated planar body having a working portion comprising a plurality of uniformly and closely spaced teeth which define an arcuate working perimeter. Each of the teeth has a base and a working edge and is separated from neighboring teeth by generally elliptical primary cutouts which are oriented normal to the tangent of the working perimeter. The teeth are preferably monolithic and of a uniform size and shape, and are both angularly set and laterally displaced relative to the plane of the blade body.

A tire rasp blade and rasp hub assembly is disclosed. The tire rasp blade has an elongated body and an arcuate working edge with a plurality of teeth. The elongated blade includes an angled intermediate portion and generally planar end portions, thereby establishing a body having a broad V-shape. A plurality of V-shaped blades are assembled with adjacent spacers to form a circumferentially inter-locking hub assembly.

The outer edge of teeth of tire buffing machine blades is interrupted by oppositely curved arcuate slots which are cupped on centers disposed below the center on which the adjacent one of the leading and trailing deeper cutting side edges of the tooth are cupped. Between said arcuate slots, the outer edge has a shallower arcuate notch the ends of which are obtuse to the tooth outer edge. The portions of the tooth outer edge between the arcuate slots and the tooth cutting side edges are displaced laterally to opposite sides of the teeth and the inner portions of the tooth outer edge between said arcuate slots and the notch are transversely offset to the remainder of the tooth such that the teeth successively present to the tire surface being buffed a first sharply acute deeply cutting edge, then a sharply acute lighter cutting edge of shallower depth followed by an obtuse buffing edge and a more bluntly obtuse second buffing edge which act to finish the tire surface to a required texture.

Tire rasp blade having multi-cutting edges

Blades for tire rasps are disclosed in which the outer edge of their teeth have cutting edges inclined at a positive rake angle and cooperating buffing edges inclined at a negative rake angle, the teeth having other similarly inclined cutting and buffing edges at levels inwardly of the original outer tooth edge to which the teeth may be sharpened as the original cutting and buffing edges become worn.

Tire rasp blades with renewable cutting and buffing edges

Replaceable blades have an inner generally planar portion which is mounted between imperforate spacers of a tire buffing machine hub and an outer working edge portion which protrude beyond said spacers. Said working edge portion has spaced teeth and means in the form of apertures located adjacent the base of the teeth and outwardly of the perimeter of said spacers for collection and direction of air and/or externally applied moisture in rotation of the hub. In some of the disclosed forms the trailing edge of the apertures is embossed or otherwise scoop shaped for increased collection capability and/or capacity.

Tire buffing machine blades having heat dissipation means

Tire rasp is disclosed for a tire buffing machine in which the blades and spacers are removably assembled in holders which in turn are removably assembled between the top and base plates of a hub comprising the tire rasp. Each holder and its assembly of blades and spacers are separately removable from the reversible in the tire rasp hub.

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Olympia Fields, IL, United States of America

Wayne E Jensen