Device for stacking trays with articles
US4997339A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 10, 1989 |
| Grant date | Mar 5, 1991 |
| Priority date | — |
| Expiry date | Jul 10, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G57/14
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A device for stacking egg-trays comprising a feed conveyor (2) advancing the trays one after the other, a second conveyor (3) for discharging the trays stacked on each other, a transport mechanism (15) operating between the feed and the discharge conveyor having carrying forks for transporting one tray at a time onto a support platform (30) which collects the trays and periodically oscillates through a 90.degree. arc so as to stack the subsequent trays in a staggered relationship. The platform is also capable of a vertical movement from a high position to a low positioin and vice versa for depositing a stack of trays upon the discharge conveyor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.