Toolholder for milling drums of scarifying machines
AssigneeBitelli SPA
InventorRomolo Bitelli
Life of this patent
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Abstract
A toolholder for milling drums of scarifying machines including a body having a longitudinal axis, at one end provided with a housing suitable to house a milling tool. The body of the toolholder has an outside annular groove so as to reduce the resisting section of the toolholder and form a pre-set breaking area.
Claims17
A toolholder for milling drums of scarifying machines including a body defining a longitudinal axis, at one end provided with a housing for housing a milling tool, said toolholder having a truncated-cone shaped base with a lateral external surface having an inclination converging toward the end opposite to the end housing said tool, said toolholder for removably housing said milling tool in a respective truncated-cone shaped hole in a support unit belonging to an external lateral surface of said milling drum, said body of said toolholder including a plane surface parallel to the longitudinal axis of said toolholder along its length, wherein the body of said tool holder has an external annular groove projecting from said support unit and reducing the resisting section of said toolholder in order to define a pre-set breaking area, said annular groove is included between an annular collar and an annular projection both projecting radially from the body of said toolholder and both formed above a larger base of said truncated-cone shaped base.
A breakaway toolholder for holding a milling tool comprising:
- a body defining a longitudinal axis and having a distal end formed with a longitudinal opening for receiving the tool therein;
- the body having an external surface in the form of a truncated-cone, said external surface having an annular groove defining a pre-set breaking area;
- said annular groove has opposite end portions;
- said body has an annular collar and an annular projection projecting radially from the body at the opposite end portions of the annular groove;
- and
- a planar surface parallel to the longitudinal axis of the toolholder along its length, is formed in the body.
A breakaway toolholder for holding a milling tool comprising:
- a body defining a longitudinal axis, said body having an external surface, a base end and a free end;
- a housing at said base end for housing said milling tool;
- said base end having a truncated-cone shape with a lateral external surface inclined toward said free end;
- a plane surface parallel to said longitudinal axis of said toolholder;
- and
- an annular groove defining a pre-set breaking area formed in said external surface of said body and having opposite end portions;
- said body has an annular collar and an annular projection projecting radially from the body at the opposite end portions of the annular groove.
Dependencies are inferred from the claim text.