Rotary power tool including transmission housing bushing
US11440173B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2021 |
| Grant date | Sep 13, 2022 |
| Priority date | — |
| Expiry date | Sep 17, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25D2250/335
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A rotary power tool comprises a drive mechanism including an electric motor and a transmission, a housing enclosing at least a portion of the drive mechanism, a spindle rotatable in response to receiving torque from the drive mechanism, a first ratchet coupled for co-rotation with the spindle, a second ratchet rotationally fixed to the housing, a sleeve bushing on an interior of the housing, and a bearing arranged between the spindle and the sleeve bushing and rotatably supporting the spindle. The bearing has an outer race. The spindle is movable relative to the housing in response to contact with a workpiece, causing the first and second ratchets to engage and the spindle to reciprocate while rotating. The outer race of the bearing moves along the sleeve bushing during reciprocation of the spindle when the first ratchet and second ratchet are engaged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.