Multi-Level Storage Grid with Bin Lift Transfer

The patent transitions from a single-level storage system to a multi-level grid structure with at least two horizontal levels. This vertical dimensionality change increases storage capacity without proportionally increasing device complexity, as the same vehicle and bin lift device types are reused across levels.

The storage system is segmented into multiple independent horizontal grid levels, each with its own vehicles operating independently. This segmentation allows parallel operations across levels, increasing overall storage capacity while managing complexity through modular design.

The system adds a vertical dimension with multiple horizontal levels, allowing vehicles to access bins at different heights simultaneously. This eliminates the time penalty of vertical stacking by enabling parallel access across levels, while maintaining high area utilization through compact vertical arrangement.

Bins are pre-positioned in vertical stacks at specific locations across multiple levels. When retrieval is needed, the system can directly access the required bin location without reconfiguration, reducing access time while maintaining efficient space utilization.

The bin lift devices are designed to serve multiple functions: they can transfer bins between different horizontal levels, deliver bins to pickup stations, and retrieve bins from storage locations. This multi-functionality increases productivity without proportionally increasing device complexity, as the same hardware performs multiple operations.

The system enables self-service operations where vehicles autonomously navigate between levels and bin lift devices automatically transfer bins based on stored instructions. This reduces the need for complex control systems and manual intervention, improving productivity while managing complexity through automation.