Contemporaneous insertion of overlapping coils
US3949464A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 13, 1975 |
| Grant date | Apr 13, 1976 |
| Priority date | — |
| Expiry date | Jan 13, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53161
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Apparatus for assembling coils into the slots of stators and the like including a plurality of radially extending risers movable through a stator bore to lead pole coil groups into stator slots and a plurality of radially extending protuberances for urging trailing portions of the coils radially outwardly to provide slot space for other coils is disclosed wherein there are provided a plurality of upstanding fingers with an inner coil placed over a number of those fingers and an outer coil placed over different ones of the fingers so that the outer and inner coils overlap. The inner and outer coils are then moved into the bore and slots of a stator core with the leading end turn forming portion of the inner coil, lying intermediate of end turn forming portions of the outer coil and the trailing end turn forming portion of the outer coil lying intermediate end turn forming portions of the inner coil so that not only the inner coil, but also stator bore insulating wedges may be more readily assembled into the stator core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.