Rotational cutting tool for trimming workpiece
AssigneeHong Ann Tool Industries Co., Ltd.
InventorCheng-Wei Su
Life of this patent
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Abstract
A rotational cutting tool includes a connecting end for engaging with a driving tool and a cutting end for engaging with the work piece. The connecting end and the cutting end rotate about the rotation axis upon rotation of the rotational cutting tool. An inner periphery of the cutting end defines a receiving space for receiving the work piece. The receiving space has a conic surface which extends radially and obliquely with respect to the rotation axis. The receiving space includes a first ridge forming at least one cutting edge for trimming the workpiece and at least one slot allowing trimmed pieces from the workpiece to exit from the receiving space. The first cutting edge extends radially and obliquely with respect to the rotation axis. The first cutting edge extends curvedly and has a curved contour.
Claims19
A rotational cutting tool which is operably rotated for trimming a workpiece comprising:
- a body including a connecting end for engaging with a driving tool and a cutting end for engaging with the workpiece, wherein the body is rotatable about a rotation axis, wherein the connecting end and the cutting end rotate about the rotation axis upon rotation of the body, wherein an inner periphery of the cutting end defines a receiving space for receiving the workpiece, wherein the receiving space has a conic surface which extends radially and obliquely with respect to the rotation axis, wherein the receiving space includes a first ridge forming at least one cutting edge for trimming the workpiece, wherein the at least one cutting edge extends radially and obliquely with respect to the rotation axis, and wherein the at least one cutting edge extends curvedly and has a curved contour.
Dependencies are inferred from the claim text.