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RETENTION SYSTEM FOR ATTACHING TOOL BITS TO A BLADE ASSEMBLY

  • US 20190316328A1
  • Filed: 04/13/2018
  • Published: 10/17/2019
  • Est. Priority Date: 04/13/2018
  • Status: Active Grant
First Claim
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1. A tool bit for use with a blade assembly of a grading machine, the tool bit comprising:

  • a shank portion defining a longitudinal axis, a free end and a perimeter, at least one anti-rotation feature on the perimeter extending to the free end and a cross-hole defining a cross-hole axis along which the cross-hole extends through the shank portion; and

    a working portion extending downwardly axially from the shank portion;

    wherein the working portion includes a rear region, a front working region defining a width with a midpoint, a first side region and a second side region, and the first side region and the second side region define an angle of extension measured in a plane perpendicular to the longitudinal axis, and the cross-hole axis passes through the width of the front working region when projected onto a plane perpendicular to the longitudinal axis.

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