Drive apparatus for belt power turns
US4887708A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 1989 |
| Grant date | Dec 19, 1989 |
| Priority date | — |
| Expiry date | Jan 23, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G2201/02
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Drive apparatus for driving an endless moving conveyor belt for a power turn to change the direction of movement of articles in a transfer conveying system wherein the plurality of rolls at each end of the power turn over which the endless conveyor belt passes have a diameter less than about one inch. An endless chain is attached to the endless moving conveyor belt for movement therewith. A drive shaft is provided adjacent to each end of the power turn and has a drive roll having a tapered outer surface and a drive sprocket mounted thereon for rotation therewith. A snub roll shaft is provided adjacent to each end of the power turn and has a snub roll integral with the snub roll drive shaft and having a tapered outer surface and a snub roll sprocket mounted on the drive roll snub shaft for rotation therewith. An idler sprocket is mounted on the outer side wall adjacent to each end of the power turn. The endless moving conveyor belt is trained around the power turn so that at one end portion it moves first over the outer surfaces of the plurality of the rolls, then over a portion of the lower half of a drive roll's outer surface and then over a portion of the upper half of the snub r…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.