Quill feed for a portable drill adapted to be mounted to a work surface
US5902076A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 1998 |
| Grant date | May 11, 1999 |
| Priority date | — |
| Expiry date | Oct 2, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/73
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A magnetic based drill assembly comprising a support platform mounted to the magnetic base for attachment to a work piece includes a feed mechanism operatively connected to the platform for rectilinear movement between a fully retracted position and a fully extended position. The feed mechanism includes a splined collar slidably mounted to the splined arbor for movement relative to the splined arbor and for rotatably supporting a drive tool. The motor is mounted in a stationary position offset and substantially parallel to the feed mechanism to reduce overall height and weight of the drill assembly. As the splined arbor is located within a cylindrical feed arbor a liquid coolant can be directly injected on the drill tool and workpiece during operation of the drill assembly. Further, an electrical feed rate monitor provides a signal to the user to indicate the optimal feed rate of the drill tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.