| 摘要 |
<p>The invention concerns a toolholder (1) for milling drums of scarifying machines. The body (2) of the toolholder (1) defines a longitudinal axis (3) and is provided with: an annular groove (6) to reduce the resisting section of said toolholder (1) defining a pre-set breaking area; a through going axial hole (4) defining the housing (4) suitable to house a milling tool at one end (2a); a truncated cone shaped base (5); a collar (7) to prevent intrusion of dirt; projection (8) and collar (7) defining the annular groove (6) are provided with rounded edges (6b,7c,8a,8b,9a); a truncated cone shaped nose at milling tool end (2a) with a concave surface; a longitudinal plane surface (10) to inhibit rotation of the toolholder (1). <IMAGE></p> |
