Cassette With Compression Members For Handling

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Solution Overview

Problem

Existing cassettes for display units are difficult to handle and insert due to lack of structural reinforcement, which affects ease of use and visibility of internal surfaces.

Innovation Solution

A blank of corrugated cardboard with specific folding lines and compression members, allowing for the formation of a cassette with detachable buffers and a winglet that facilitates easy handling and optimal structural integrity, enabling smooth insertion and visibility within a display unit.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional cassette structure is used, then manufacturing is simple, but handling and insertion are difficult

Engineering Contradiction:

Improveease of handlingVSAvoidstructural complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The cassette structure is divided into multiple panels (front panel, rear panel, side panels, top panel, bottom panel) connected by folding lines. This segmentation allows the cassette to be collapsed into a flat blank for easy storage and transport, while assembling into a three-dimensional structure for display. The segmented design enables easy handling during insertion and extraction operations.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The blank is pre-cut with specific folding lines and detachment lines before assembly. The folding lines are pre-marked to guide the assembly process, and detachment lines are pre-formed to allow easy separation of panels. This preliminary preparation simplifies the handling and insertion operations by eliminating the need for complex assembly steps during use.

Inventive Principle:

Principle #10Preliminary action

2Strength

If traditional cassette structure is used, then structure is simple, but structural strength is insufficient

Engineering Contradiction:

Improvestructural strengthVSAvoidstructural complexity

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

The cassette utilizes corrugated cardboard material which combines multiple layers of material with different properties. The corrugated structure provides both strength and flexibility, allowing the cassette to maintain structural integrity while remaining lightweight. The composite material approach enhances structural strength without significantly increasing complexity.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

Compression members are strategically positioned at specific locations where structural strength is most needed, such as at the corners and along the edges of the cassette. This localized reinforcement approach provides maximum structural strength with minimal additional material and complexity, addressing the strength requirement without uniformly increasing the entire structure's complexity.

Inventive Principle:

Principle #3Local quality

3Shape

If internal surfaces are made visible, then aesthetic quality improves, but structural reinforcement is compromised

Engineering Contradiction:

Improvevisibility of internal surfacesVSAvoidstructural reinforcement

Core Design Contradiction:

ShapeVSStrength

Solution Approach 1:

The cassette panels are designed with sufficient thickness and rigidity to maintain their structural function while allowing internal surfaces to be visible. The flexible nature of the corrugated cardboard allows the panels to be thin enough for visibility but thick enough to provide necessary structural reinforcement. This balance enables both aesthetic quality and structural strength to coexist.

Inventive Principle:

Principle #30Flexible shells and thin films

4Stability of the object's composition

If compression members are added for strength, then structural integrity improves, but manufacturing complexity increases

Engineering Contradiction:

Improvestructural integrityVSAvoidmanufacturing complexity

Core Design Contradiction:

Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The compression members are integrated directly into the blank structure during the manufacturing process, rather than being separate components that require additional assembly steps. The folding lines and detachment lines are pre-formed as part of the blank itself, combining multiple functions into a single manufacturing process. This merging approach enhances structural integrity while minimizing the increase in manufacturing complexity.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS20250100743A1Cassette for display unit and blank therefor

Publication Date: 2025.03.27 DS SMITH PLC

AI summary

A cassette obtainable from a blank having a chassis and first and second compression members is provided. The chassis has a series of four first parallel folding lines, a second and a third folding lines individuating a series of a closure flap, a cover panel, a front panel, a bottom panel and a rear panel. The second and third folding lines respectively individuate a left flap of each panel and a right flap of each panel, each of the left and right flaps being separated from adjacent left and right flaps by cuts. A first compression member has a center panel fixed to an internal face of the chassis on the rear panel. A second compression member is fixed to the internal face of the chassis on the cover panel. The cover panel has detachment lines delimiting first and second foldable buffers. The front panel has detachment lines delimiting a winglet.