Rotatable cutting tool-tool holder-base assembly
US8523290B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2010 |
| Grant date | Sep 3, 2013 |
| Priority date | — |
| Expiry date | Aug 24, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C35/191
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A cutting tool holder-base assembly (399) has a base (400). The base (400) is adapted to attach to a surface (40) of a rotatable driving member (38). The tool holder-base assembly (399) includes a cutting tool holder (500) with head region (502) containing a cutting tool bore (506), and a shank region (504) with a distal end (524). The shank region (504) has an alignment notch (528) presenting an alignment surface (530) at the distal end (524). The assembly (399) further has a base (400), which contains a tool holder bore (418) and a transverse passage (430) intersecting the tool holder bore (418). There is an elongate pin (436) in the transverse passage (430). The elongate pin (436) has an exposed portion (440) thereof passing through the tool holder bore (418) wherein the cutting tool holder (500) is able to enter completely the tool holder bore (418) of the base (400) when the alignment surface (530) is in alignment with the exposed portion (440) of the elongate pin (436).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.