Rotatable cutting tool
US6709204B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2002 |
| Grant date | Mar 23, 2004 |
| Priority date | — |
| Expiry date | Oct 18, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T407/2276
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A rotatable tool includes a rotatable body defining an axis of rotation. The body forms a seat configured to receive a cutting insert. The seat includes a bottom surface and a radial support upstanding therefrom. The bottom surface includes a screw-receiving hole which intersects the bottom surface to form a port therein. The screw-receiving hole includes a female screw-threaded portion spaced from the port by a non-threaded portion. A fastening screw secures the cutting insert to the body. The screw includes a shaft having at one end thereof a male screw thread connectable to the female screw threaded portion, and at an opposite end thereof a head. The shaft also includes a non-threaded portion disposed between the male screw thread and the head and sized to be received in the non-threaded portion of the screw-receiving hole. The port and the non-threaded portion of the screw-receiving hole have a non-circular shape that is elongated generally in a radial direction relative to accommodate bending deflection of the non-threaded portion of the screw when the screw is tightened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.