Postal Rack Loading with Pre-Sequenced Parcel Handling

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Solution Overview

Problem

Current sorting systems in logistics and delivery face inefficiencies due to manual package loading, leading to disorganized delivery orders, increased operational costs, and potential damage to packages.

Innovation Solution

An automated system for loading postal items into a rack unit of a delivery vehicle, utilizing a sorting conveyor, delivery conveyor, and automatic loading units, with integrated detection and orientation mechanisms to optimize space utilization and sequencing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual loading is used, then flexibility and simplicity are maintained, but loading time increases and productivity decreases

Engineering Contradiction:
Improveloading speedVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system segments the loading process into distinct functional modules: a sorting conveyor for organizing postal items, a delivery conveyor for transporting items, and an automatic loading unit for placing items into rack units. This modular segmentation enables automated high-speed loading while keeping each component relatively simple and maintainable.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The sorting conveyor performs preliminary sorting and organizing of postal items before they reach the loading point. The system pre-sequences items according to delivery routes, so that when items reach the automatic loading unit, they are already prepared for efficient loading into the rack unit in the correct delivery sequence.

Inventive Principle:
Principle #10Preliminary action

2Object-affected harmful factors

If manual handling is used, then operational simplicity is maintained, but the risk of damage to postal items increases

Engineering Contradiction:
Improvedamage riskVSAvoidautomation level
Core Design Contradiction:
Object-affected harmful factorsVSExtent of automation

Solution Approach 1:

The system replaces manual mechanical handling with an automated mechanical system consisting of conveyors and an automatic loading unit. This substitution eliminates human error and rough handling, reducing damage risk while implementing controlled, gentle mechanical transfer of postal items through the loading process.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The automatic loading unit performs the loading function autonomously without human intervention. The system self-regulates the transfer and placement of postal items into rack units, ensuring consistent handling standards and minimizing damage through programmed precise positioning and controlled placement mechanisms.

Inventive Principle:
Principle #25Self-service

3Loss of time

If items are loaded in random order, then loading speed is maintained, but delivery time increases due to disorganized sequencing

Engineering Contradiction:
Improvedelivery timeVSAvoidsorting complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The sorting conveyor performs preliminary sequencing of postal items according to their delivery destinations and routes before items reach the loading point. This pre-organization ensures that items are loaded into the rack unit in the correct delivery sequence, eliminating the need for drivers to search for packages and enabling immediate sequential delivery.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system incorporates detection devices that identify postal items and provide feedback to the control unit about item characteristics and destination requirements. The control unit uses this feedback to dynamically adjust the sorting and sequencing process, ensuring items are correctly ordered for delivery while optimizing loading efficiency.

Inventive Principle:
Principle #23Feedback

4Quantity of substance

If space utilization is not optimized, then loading simplicity is maintained, but the number of parcels per trip decreases

Engineering Contradiction:
Improvenumber of parcels per tripVSAvoidloading system complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The automatic loading unit incorporates adjustable and adaptable loading mechanisms that can dynamically adjust to different postal item sizes, shapes, and weights. The system optimizes space utilization by adapting the placement strategy for each item, maximizing the number of parcels that can be loaded into the rack unit while maintaining organized sequencing and efficient space occupation.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP4685093A1System for automatic loading of postal items into a rack unit of a delivery vehicle and corresponding method
Publication Date: 2026.01.28 BEUMER GROUP GMBH & CO KG
  • EP4685093A1 patent drawingFigure 1
  • EP4685093A1 patent drawingFigure 2
  • EP4685093A1 patent drawing

AI summary

The invention refers to a system for automatic loading of postal items into a rack unit of a delivery vehicle, comprising a sorting conveyor configured for providing a plurality of postal items, e.g. parcels and/or packages, intended for a delivery run of a delivery vehicle; at least one delivery conveyor for delivering the postal items from the sorting conveyor to a handling area of a rack unit configured to be accommodated in a loading space of a delivery vehicle; at least one automatic loading unit configured to load postal items from the handling area into rack unit compartments of the rack unit. The invention further refers to a corresponding method for automatic loading of postal items into a rack unit of a delivery vehicle.