Electromagnetic connecting device
US10473167B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2018 |
| Grant date | Nov 12, 2019 |
| Priority date | — |
| Expiry date | Mar 31, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2027/007
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electromagnetic clutch includes a field core including a coil storage groove, and a rotor including a core storage groove. The coil storage groove is formed by an inner cylindrical portion, an outer cylindrical portion, and a bottom portion. The bottom portion of the field core wholly projects to the outside of the core storage groove. The outer peripheral surface of the inner cylindrical portion and the inner peripheral surface of the outer cylindrical portion include a first transition surface and a second transition surface, respectively, on the bottom portion side. Each of the first transition surface and the second transition surface includes a tilting surface that gradually narrows the groove width of the coil storage groove along with an increase in a distance from the side of the opening of the coil storage groove.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.