Power tool drop arm with offset ribbing
US10213853B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 4, 2016 |
| Grant date | Feb 26, 2019 |
| Priority date | — |
| Expiry date | May 18, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB27G19/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A power tool assembly includes a drop arm frame with an opening configured to rotatably support an arbor shaft, a lower surface spaced apart from the opening, and a plurality of ribs extending between the lower surface and the opening. The plurality of ribs define a respective one of a plurality of axes, the plurality of axes intersect at a locus, and the locus is adjacent to, but spaced apart from, a center of gravity of the drop arm assembly. The power tool assembly further includes an actuating device configured to transfer a force to the drop arm assembly when the drop arm assembly is at the first drop arm assembly position, and a control system configured to control the actuating device to transfer the force to the drop arm assembly when an unsafe condition is sensed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.