Method and device for the efficient delivery of mail items of different sizes to a compartment

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Solution Overview

Problem

Parcel locker facilities are inefficient for delivering letters due to varying mail volumes and limited capacity, and there is a need for dynamic delivery options and access outside registered addresses.

Innovation Solution

A method and device for sorting and storing letters in dedicated register compartments within a compartment system, allowing for efficient placement and retrieval based on recipient authentication and shipment characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If parcel locker facilities are used for delivering letters, then delivery options are expanded, but capacity utilization is reduced

Engineering Contradiction:
Improvedelivery optionsVSAvoidcapacity utilization
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The system segments the compartment facility into two distinct types: register compartments for letters and parcel compartments for parcels. This segmentation allows letters to be delivered to parcel locker facilities without consuming parcel compartment space, thereby expanding delivery options while maintaining high capacity utilization for parcels.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The parcel locker facility is designed with multi-functionality by incorporating both register compartments (for letters) and parcel compartments (for parcels). This universal design enables the facility to handle both letter and parcel deliveries, expanding service versatility while optimizing space usage through dedicated compartments for each item type.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If individual mailboxes are provided for every user, then delivery reliability is improved, but device complexity increases

Engineering Contradiction:
Improvedelivery reliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system merges the functionality of individual mailboxes with the shared parcel locker facility by introducing register compartments. Multiple users can share access to the same register compartment system, eliminating the need for separate physical mailboxes for each user while maintaining reliable letter delivery through authenticated access control.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The register compartment system acts as an intermediary between the delivery service and individual users. Instead of requiring direct access to personal mailboxes, users authenticate themselves at the register compartment, which mediates the delivery process and reduces overall system complexity while maintaining delivery reliability.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If fixed mailbox assignments are used, then operation simplicity is maintained, but adaptability to varying mail volumes is reduced

Engineering Contradiction:
Improveoperation simplicityVSAvoidadaptability to varying mail volumes
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The register compartment system introduces dynamic allocation capabilities while maintaining operational simplicity. The system can adapt to varying mail volumes by managing register compartment usage based on actual delivery needs rather than fixed assignments, allowing flexible accommodation of different mail volumes without complicating the delivery process.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the parameter of compartment assignment from fixed to dynamic based on mail volume and user needs. Register compartments can be allocated and released according to actual usage patterns, enabling the system to adapt to varying mail volumes while maintaining simple operation through automated management.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP4697246A1Method and device for the efficient delivery of mail items of different sizes to a compartment
Publication Date: 2026.02.18 DEUT POST AG
  • EP4697246A1 patent drawingFigure 1a
  • EP4697246A1 patent drawingFigure 1b
  • EP4697246A1 patent drawingFigure 2~3

AI summary

The disclosure includes, inter alia, a method performed by a first device or by a component thereof, the first device comprising a plurality of register compartments, the method comprising: receiving a shipment, in particular a letter; checking whether the shipment should be placed in a register compartment of the plurality of register compartments; placing the shipment in a register compartment if the check has shown that the shipment should be placed in a register compartment of the plurality of register compartments; and rejecting the shipment if the check has shown that the shipment should not be placed in a register compartment of the plurality of register compartments. Furthermore, corresponding devices, systems, and computer programs for the respective execution and/or control of the disclosed method are disclosed.