Power tool and main shaft thereof
US12280473B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jan 5, 2021 |
| Grant date | Apr 22, 2025 |
| Priority date | — |
| Expiry date | Feb 24, 2044 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25D2217/0096
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A main shaft of a power tool is sequentially divided into an impact section, a penetrative section and an output section, wherein the impact section is formed with an impact portion and has a curved recess defined therein, and the penetrative section is adapted to extend through a front portion of the power tool. The main shaft has a linear tunnel defined therein and extending therethrough. The linear tunnel has two opposite ends respectively defined as an inlet and an outlet, wherein the inlet is situated in the output section and the outlet is adapted to correspond to an impact block of an impact device of the power tool. An axis of the linear tunnel is formed an included angle with an axis of the main shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.