Hollow shaft and method for manufacturing hollow shaft
US12027954B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2022 |
| Grant date | Jul 2, 2024 |
| Priority date | — |
| Expiry date | Dec 30, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/003
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The disclosure provides a hollow shaft and a method for manufacturing the same. The hollow shaft includes: an outer periphery component having a cylindrical shape, and the outer edge of the outer periphery component has a polygonal shape; an inner periphery component having a cylindrical shape and is fitted to the inner wall of the outer periphery component; and a bottom component including a bottom plate and a cylindrical body, the extending direction of the bottom plate is perpendicular to the axial direction, the cylindrical body extends from the radially outer circumference of the bottom plate along the axial direction toward the outer periphery component, and the inner wall of the cylindrical body fits the outer wall of the inner periphery component. The outer periphery component, the inner periphery component, and the bottom component are separately defined components. The hollow shaft of the disclosure includes three separate components defined separately.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.