Apparatus for automatically inverting workpieces of limp sheet material
US5040778A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 16, 1990 |
| Grant date | Aug 20, 1991 |
| Priority date | — |
| Expiry date | Jul 16, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2301/33214
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Apparatus is disclosed for automatically inverting workpieces of limp sheet material, such as fabric sheet material. The apparatus includes an endless conveyor having a forward-traveling upper reach for conveying workpieces in a forward direction. A gripper grasps a portion of the workpiece adjacent its leading edge as the workpiece travels on the conveyor, and lifts the leading edge portion of the workpiece off the conveyor. The gripper holds the leading edge portion stationary with a trailing portion of the workpiece extending downwardly from said pick-up means. A pushing mechanism acting on a generally rearwardly facing surface of the trailing portion of the workpiece pushes the trailing portion forwardly to effect complete inversion of the trailing portion as the leading edge portion is held stationary by the gripper. The gripper releases the leading edge portion of the workpiece after the trailing portion of the workpiece has been inverted. The leading edge of the workpiece drops to the conveyor so that the trailing edge of the workpiece leads the remaining portions of the workpiece and the leading edge trails the remaining portions of the workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.