Precision angle cutting attachment for chain saws
US5713134A · kind A · utility
Inventor
Key dates
| Filing date | May 2, 1995 |
| Grant date | Feb 3, 1998 |
| Priority date | — |
| Expiry date | May 2, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/68
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An attachment for a chain saw that allows the angle of a cut to be controlled with great precision. The attachment consists of a rigid, rectangular guide frame with an open window construction. An approximately U-shaped blade mount is hingably attached to the guide frame, thus allowing a saw blade to be inserted through the open window of the guide frame and mounted onto the blade mount. The blade mount, and thus the attached saw blade, can move in an arc with respect to the guide frame, and the attachment includes a selecting means by which to determine the angle between the blade mount and the guide frame and a tightening means by which to secure the blade mount and guide frame in the desired position. An additional feature is a directing fence so as to control the direction of a cut. The fence consists of a first and a second bar that are hingably mounted to one another and can thus be rotated and secured so that any desired angle is set between them. The fence is positioned on an edge of the workpiece so that one of the bars rests along the top edge, and the other bar extends along the side edge at the selected angle. The guide frame is then aligned with the angled bar and kept…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.