Split ring clamping arrangement
US5188492A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 5, 1991 |
| Grant date | Feb 23, 1993 |
| Priority date | — |
| Expiry date | Nov 5, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/306608
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A router having a depth of cut adjustment mechanism including an adjustment ring which engages a screw thread on the motor housing and rotationally engages the router base. There is further provided an arrangement for preventing relative rotation between the motor housing and the base. The adjustment ring is formed as a split ring with projections adjacent opposite sides of the split, each with a frusto-conical camming surface. A circular clamp knob having a plurality of tabs extending axially outward from a top surface and radially outward from a central axis is mounted for threaded rotation on a bolt passing through the projections radially with respect to the router motor housing which bears against the camming surfaces so as to squeeze the ring in order to effect a clamping action as the knob is moved inwardly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.