Shuttle System Transfer Station Segmentation for Blockage Prevention

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Shuttle systems in prior art face inefficiencies due to overlapping paths of shuttles and vertical conveyors, leading to increased downtime and potential blockages during storage and retrieval processes, particularly in environments with multiple transfer stations and conveyors.

Innovation Solution

The implementation of a shuttle system with strategically arranged transfer stations and transfer points along the shelf front, where at least two transfer stations are assigned to each vertical conveyor, allowing shuttles to operate independently and reducing overlap by designating specific paths for storage and retrieval, thereby decoupling the actions of industrial trucks and shuttles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If shuttles and vertical conveyors share overlapping paths in prior art shuttle systems, then the system structure is simplified, but this leads to increased downtime and potential blockages during storage and retrieval processes

Engineering Contradiction:
Improvesystem structureVSAvoidoperational efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The system divides the racking system into multiple independent zones, each with its own vertical conveyor and assigned transfer stations. This segmentation allows shuttles and vertical conveyors to operate independently in separate zones, eliminating path overlaps and blockages while maintaining operational efficiency.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Transfer stations serve as intermediary interfaces between shuttles and vertical conveyors. By introducing these dedicated transfer points, the system enables seamless handover of load carriers without requiring shuttles and conveyors to share the same path, thus avoiding blockages while maintaining system integration.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Quantity of substance

If multiple transfer stations and vertical conveyors are deployed to increase capacity, then the system can handle more storage and retrieval operations, but this increases the risk of path overlap and blockages

Engineering Contradiction:
Improvesystem capacityVSAvoidblockage risk
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

Each vertical conveyor is assigned dedicated transfer stations, creating independent operational zones. This segmentation ensures that even with multiple conveyors and transfer stations, paths do not overlap, eliminating blockage risks while maintaining high system capacity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system assigns specific transfer stations to specific vertical conveyors, creating localized functional areas. This local quality approach ensures that each conveyor-station pair operates independently with its own dedicated path, preventing blockages while enabling high overall capacity.

Inventive Principle:
Principle #3Local quality

3Adaptability or versatility

If shuttles and industrial trucks operate in the same area without designated paths, then the system is more flexible, but this leads to increased downtime during storage and retrieval

Engineering Contradiction:
Improveoperational flexibilityVSAvoiddowntime
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The system pre-assigns specific transfer stations to specific vertical conveyors and defines dedicated paths for shuttles and industrial trucks. This preliminary organization of paths and assignments eliminates conflicts and waiting times, reducing downtime while maintaining operational flexibility through the modular structure.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4371907A1Shuttle system and method for operating a shuttle system
Publication Date: 2024.05.22 GEBRHARDT FORDERTECHN GMBH
  • EP4371907A1 patent drawingFigure 1
  • EP4371907A1 patent drawingFigure 2
  • EP4371907A1 patent drawingFigure 3

AI summary

In a method for operating a shuttle system, at least one shuttle (9) shall take over a load carrier to be stored from a transfer station and transfer a load carrier to be retrieved to a transfer station.