Track-Guided Delivery Vehicles for Cost-Effective Item Sorting

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Solution Overview

Problem

Large organizations face challenges in efficiently and cost-effectively sorting and retrieving items due to the labor-intensive nature of manual processes and the high costs of traditional automated sorting systems, which are often not justified by the volume of mail or items handled.

Innovation Solution

A material handling system featuring a track with interconnected vertical and horizontal sections, allowing delivery vehicles to change direction while maintaining item orientation, and a central controller to manage vehicle positioning and gate operation, enabling semi-autonomous delivery and retrieval of items to and from storage locations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional automated sorting equipment is used, then sorting efficiency is improved, but system cost increases significantly

Engineering Contradiction:

Improvesorting efficiencyVSAvoidsystem cost

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The system is divided into modular components: multiple independent vehicles traveling on a common track, with each vehicle handling its own items. The sorting function is segmented across multiple vehicles rather than requiring a single large complex machine, reducing overall system cost while maintaining high productivity

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The track system serves multiple functions: it transports vehicles, provides sorting capability through gate selection, and accommodates various item types. The same infrastructure handles both sorting and retrieval operations, eliminating the need for separate specialized equipment and reducing system cost

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Device complexity

If manual sorting is used, then system cost is reduced, but labor time and effort increase

Engineering Contradiction:

Improvesystem costVSAvoidsorting time

Core Design Contradiction:

Device complexityVSLoss of time

Solution Approach 1:

Vehicles are equipped with onboard controllers that automatically control gate selection and vehicle routing based on item destination information. The system performs sorting operations autonomously without requiring manual intervention at each sorting point, dramatically reducing labor time while keeping the system relatively simple and cost-effective

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

Manual labor is replaced with automated vehicle navigation and gate control systems. The mechanical sorting action is substituted with electronically controlled gate mechanisms that automatically direct vehicles to the correct destination, reducing labor time without requiring complex expensive automation

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Area of stationary object

If vehicles change direction from horizontal to vertical, then space utilization is improved, but item orientation may change

Engineering Contradiction:

Improvespace utilizationVSAvoiditem orientation

Core Design Contradiction:

Area of stationary objectVSStability of the object's composition

Solution Approach 1:

The track system utilizes three-dimensional space by incorporating both horizontal and vertical track sections. Vehicles travel horizontally along upper and lower rails, then transition vertically through columns, effectively utilizing vertical space to increase storage capacity and reduce footprint without compromising item orientation through proper vehicle design

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

4Quantity of substance

If more storage locations are added, then system capacity is improved, but system complexity increases

Engineering Contradiction:

Improvestorage capacityVSAvoidsystem complexity

Core Design Contradiction:

Quantity of substanceVSDevice complexity

Solution Approach 1:

Storage capacity is expanded by adding vertical dimensions to the system architecture. Multiple levels of horizontal rails stacked vertically provide numerous storage locations without proportionally increasing horizontal space or system complexity. The modular vertical column design allows capacity expansion while maintaining manageable system complexity

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The system handles complexity through segmentation into standardized modular units (vehicles, gates, track sections). Each unit operates independently with standardized interfaces, allowing storage capacity to be expanded by adding more modules without proportionally increasing overall system complexity. The common control architecture manages multiple destinations through unified vehicle routing logic

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS11478825B2Material handling apparatus for delivering or retrieving items

Publication Date: 2022.10.25 OPEX CORP

AI summary

A method and apparatus are provided for sorting or retrieving items to/from a plurality of destinations areas. The items are loaded onto one of a plurality of independently controlled delivery vehicles. The delivery vehicles follow a track that guides the delivery vehicles to/from the destination areas, which are positioned along the track. Once at the appropriate destination area, an item is transferred between the delivery vehicle and the destination area.