Adjustable Packaging Box Structure With Sliding Corner Locks

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing packaging bodies with fixed outer shapes require separate manufacturing for each product size, leading to inefficiencies in production, transportation, and disposal costs due to the need for dedicated packaging bodies for each product shape.

Innovation Solution

A packaging body design featuring slidable and connectable packaging materials with a rail and lock mechanism, allowing adjustable size changes to match various product shapes without unintentional disengagement or displacement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a packaging body with a fixed outer shape is used, then the structural integrity is maintained, but the adaptability to different product sizes is reduced

Engineering Contradiction:

Improveadaptability to different product sizesVSAvoidpackaging body structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The packaging body is divided into multiple packaging materials (first and second packaging materials) that can be independently positioned and adjusted. Each packaging material has corner portions that can be moved relative to each other, allowing the overall packaging body to be segmented into adjustable modules that adapt to different product dimensions while maintaining structural integrity through their interconnected design.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The packaging body transitions from a static fixed-structure design to a dynamic adjustable structure. The corner portions of adjacent packaging materials are designed to be movable relative to each other, enabling the packaging body to dynamically change its outer shape and size according to different packaging needs, thereby improving adaptability without permanently increasing structural complexity.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If a slidable connection mechanism is introduced to enable size adjustment, then the adaptability is improved, but the reliability against unintentional disengagement is reduced

Engineering Contradiction:

Improvesize adjustabilityVSAvoidconnection stability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The packaging materials are pre-configured with corner portions and connection interfaces that enable controlled sliding movements. The structural design includes predetermined sliding paths and connection points that allow the corner portions to move relative to each other in a controlled manner, ensuring that size adjustment can be performed reliably without unintentional disengagement while maintaining connection stability.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentEP4714847A1Packaging body and packaging box

Publication Date: 2026.03.25 FUJIFILM BUSINESS INNOVATION CORP

Figure 1
Figure 2A~2B
Figure 3

AI summary

A packaging body (50). includes four packaging materials (100a, 100b, 200a, 200b) arranged in a rectangular shape in plan view with respective corner portions (102a, 102b, 202a, 202b) as four corners, each of the four packaging materials having a first piece (110, 210) and a second piece(120, 220) connected at a corner portion in an L-shape in plan view, in which the first piece and the second piece of the packaging materials adjacent to each other are slidably connected in an approach and separation direction in which the corner portions approach and separate from each other.