Abstract An improved shredder construction including a revolving shaft and a series of blade assemblies mounted by their associated hubs to the shaft. The individual hubs or hub sections are keyed to the shaft, whereas the respective blade assemblies are pinned to their respective hubs or hub assemblies. In the invention the composite hub structure includes a series of hub sectors, generally two, which are bolted together at opposite sides. Cutter bar bases supporting cutter bars operatively associated with the blades are raised at their underneath dimension such that centrifugal force will cause debris hanging on to the blade assembly, exposed relative to the cutter bases, to be thrown outwardly and downwardly free of the equipment. Accordingly, the cutter bar structure including their bases are relieved such that the blades will be exposed proximate their lowermost peripheral trajectories of travel. In a preferred embodiment, blades are likewise affixed to the lower edges of the cutter bar structure such that should there be any remaining debris clinging to the blade structure, the same will be simply brushed or sheared as the blade returns upwardly, relative to its outer extremity, into the region between adjacent cutter bars.
A shredder construction including, in combination, a shaft; a series of mutually spaced blade assemblies; plural, mutually spaced hub means keyed to said shaft, each of said hub means comprising plural arcuate segments each having a corresponding outer, peripheral groove, said grooves comprising a composite peripheral groove when said segments are assembled together; attachment means for securing together said segments and tightening the same together down onto said shaft, said blade assemblies being mounted to said hub means at said respective composite peripheral grooves; shear pin means for securing respective ones of said blade assemblies to said hub means, the interior of said blade means being dimensioned such that the frictional coaction of each of said blade means with said hub means is controlled by the tightening of said attachment means.
Claim 2
Dependent Claim
131 words
A shredder construction including, in combination, a shaft; a series of mutually spaced blade assemblies; plural, mutually spaced hub means keyed to said shaft, each of said hub means comprising plural arcuate segments each having a corresponding outer, peripheral groove, said grooves comprising a composite peripheral groove when said segments are assembled together; attachment means for securing together said segments and tightening the same together down onto said shaft, said blade assemblies being mounted to said hub means at said respective composite peripheral grooves; shear pin means for securing respective ones of said blade assemblies to said hub means, the interior of said blade means being dimensioned such that the frictional coaction of each of said blade means with said hub means is controlled by the tightening of said attachment means.