Releasable holding device for cores
US4964586A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 3, 1989 |
| Grant date | Oct 23, 1990 |
| Priority date | — |
| Expiry date | Nov 3, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T279/1079
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A device for releasably holding a core or the like relative to a drive shaft passing therethrough includes at least two clamping elements located within the core. Guide pieces are fixed to a ring disc which surrounds a ring connected to the drive shaft. These guide pieces allow the clamping elements to move radially relative to the drive shaft and hold the core. A friction brake is provided to brake the ring relative to the ring disc. Also, a locking pawl arrangement is provided to selectively prevent the ring disc from rotating with the drive shaft. Accordingly, back slipping is prevented which undesirably loosens the core from the clamping elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.