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Rotary mill having releasable wedge-lock tool insert holding system

  • US 6,523,768 B2
  • Filed: 03/20/2001
  • Issued: 02/25/2003
  • Est. Priority Date: 03/29/2000
  • Status: Expired due to Fees
First Claim
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1. A rotor assembly for comminuting scrap wood and other like material comprising:

  • a. a rotor drum including a drive shaft for rapidly rotating said rotor drum in a forward direction of travel and further including at least one radially projecting tool supporting member having a peripheral surface with at least one tool assembly receiving pocket provided therein having an inclined front wall and an oppositely inclined rear wall extending outwardly from a pocket floor;

    b. a releasable comminuting tool comprising an elongate shank, with a cutting head thereon having a cutter tooth with a leading cutter edge facing in said direction of travel, received in said pocket and bearing upon said front wall of said pocket, said shank having an inclined front wall surface and being received to dispose said cutting head outwardly of said pocket; and

    c. a wedge including a rear inclined surface bearing upon said rear wall of said pocket and a front wall bearing upon said tool shank, said wedge having a threaded opening with an elongate threaded abutment member therein having an inner end extending to bear upon said pocket floor manipulatible to draw said wedge member outwardly when manipulated with its inner end in bearing engagement with said pocket floor, said angle of inclination of said inclined rear wall of said wedge being greater than the angle of inclination of said inclined tool shank surface to provide a differential inclination.

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