Method and apparatus for retrieving units from a storage system
US11858737B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2021 |
| Grant date | Jan 2, 2024 |
| Priority date | — |
| Expiry date | Oct 20, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G1/0464
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A storage system and a load handling device for lifting and moving containers stacked in the storage system are described. The storage system includes a plurality of rails arranged in a grid pattern above the stacks of containers. The grid pattern has a plurality of grid spaces and each stack is located within a footprint of a single grid space. The load handling device can move laterally on the rails above the stacks and includes a container receiving space located above the rails in use and a lifting device arranged to lift a container from a stack into the container receiving space. The load handling device also includes a mechanism for enabling lateral movement of the device in one of two transverse directions by enabling either a first or second set of wheels to selectively engage the first or second set of rails.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.