Self-lifting shaftless unwind stand
US6536706B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2001 |
| Grant date | Mar 25, 2003 |
| Priority date | — |
| Expiry date | Sep 6, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H19/126
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An apparatus for lifting a roll of previously wound material and for unwinding the material from the roll is disclosed. The apparatus includes a hollow column around which a lift arm assembly is moved from a load position to an unwind position. A lifting mechanism for lifting the roll after it is loaded at the load position is also provided. A plurality of lift arm assemblies can be provided so that a stand-by roll can be loaded onto the apparatus to be quickly rotated into an unwinding position. The lift arm assembly supports the roll without the use of a shaft through the core of the roll. A drive motor is provided which includes a splined shaft for engaging the roll and turning the roll to unwind the material therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.