String-Actuated Sheet Article for Multi-Form Transformation

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Solution Overview

Problem

Conventional sheet-like articles are limited to a single use form, lacking versatility in their application.

Innovation Solution

A sheet-like article with a string that includes a sheet-like main body and a string body inserted into multiple holes, allowing the article to be transformed from a first use form to a second use form by pulling the string body.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a sheet-like article is designed for a single specific use, then its functional simplicity is maintained, but its versatility and adaptability are limited

Engineering Contradiction:
ImproveversatilityVSAvoidstructure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The sheet-like article is designed to perform multiple functions by incorporating a transformable structure. The main body can be folded along a fold line to switch between an unfolded state (first use form) and a folded state (second use form), allowing the same article to serve different purposes such as a bookmark or a decorative ornament, thereby achieving multi-functionality without requiring multiple separate articles

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

Solution Approach 2:

The sheet-like article is divided into multiple regions by introducing a fold line that separates the main body into distinct sections. This segmentation allows different parts of the sheet to serve different functions in different states, enabling the article to transform between multiple use forms while maintaining structural integrity

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If a sheet-like article has a fixed structure, then its manufacturing simplicity is maintained, but its ability to change form is limited

Engineering Contradiction:
Improveform transformabilityVSAvoidmanufacturing complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The sheet-like article incorporates a dynamic element through the fold line, which allows the rigid sheet structure to become flexible and transformable. The fold line enables the article to dynamically switch between unfolded and folded states, providing form transformability while maintaining simplicity in the manufacturing process as no additional moving parts or complex mechanisms are required

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3623167B1Cord-equipped sheet-shaped product
Publication Date: 2025.02.12 DENTSU INC
  • EP3623167B1 patent drawingFigure 1
  • EP3623167B1 patent drawingFigure 2
  • EP3623167B1 patent drawingFigure 3

AI summary

There is provided a sheet-like article with a string enabling use in two use forms (a first use form and a second use form). A sheet-like article 1 with a string has a first use form and a second use form. The sheet-like article 1 with a string includes a sheet-like main body 2, and a string body 4 inserted into holes 3 of the main body 2. In the sheet-like article 1 with a string, change from the first use form to the second use form is possible by pulling of the string body 4.