Rigid Material Segmentation for Flexible Electronic Enclosures

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Solution Overview

Problem

Rigid materials used in electronic device enclosures require additional components like hinges for flexibility, increasing size and manufacturing costs due to the need for separate flexible elements.

Innovation Solution

Creating flexible portions within rigid materials by incorporating geometric patterns that allow the material to bend through recessed and/or cut features, enabling the material to deform without disconnecting, thus eliminating the need for external hinges.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a rigid material is used for the enclosure, then structural strength and protection are improved, but flexibility and bendability deteriorate

Engineering Contradiction:
Improvestructural strengthVSAvoidflexibility
Core Design Contradiction:
StrengthVSAdaptability or versatility

Solution Approach 1:

The rigid material is segmented into multiple rigid segments that are connected through recesses and cuts. These segments can move relative to each other while maintaining the overall rigidity of the material. The segmentation allows the enclosure to bend at specific locations without compromising the structural strength of the rigid material itself.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces geometric patterns including recesses and cuts that create movement in a different dimension. The rigid segments are arranged to allow bending motion perpendicular to the original plane of the rigid material, enabling flexibility through dimensional transformation while maintaining in-plane rigidity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If separate flexible components like hinges are added to enable bending, then flexibility is improved, but device complexity and manufacturing cost increase

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

Solution Approach 1:

The patent merges the flexible hinge function directly into the rigid material structure through geometric patterns of recesses and cuts. Instead of adding separate hinge components, the flexibility is integrated into the rigid material itself, combining what were previously separate elements (rigid material and flexible hinge) into a unified structure.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The rigid material structure provides its own flexibility through the geometric patterns without requiring external assistance from separate hinge components. The recesses and cuts enable the rigid material to bend and flex on its own, making the system self-sufficient and eliminating the need for additional flexible components.

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If separate flexible components are added to enable bending, then flexibility is improved, but the size of the enclosure increases

Engineering Contradiction:
ImproveflexibilityVSAvoidenclosure size
Core Design Contradiction:
Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

By merging the flexible hinge functionality into the rigid material structure through geometric patterns, the patent eliminates the need for separate hinge components that would occupy additional space. The combined structure achieves the same flexible functionality within a more compact footprint, reducing the overall enclosure volume.

Inventive Principle:
Principle #5Merging (Combining)

4Adaptability or versatility

If geometric patterns with recesses and cuts are created in rigid material, then flexibility is improved, but manufacturing precision requirements increase

Engineering Contradiction:
ImproveflexibilityVSAvoidgeometric pattern precision
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The geometric patterns are segmented into discrete recesses and cuts that create distinct rigid segments. This segmentation allows for standardized manufacturing processes where each segment can be precisely formed independently, making the overall precision requirement more manageable through modular fabrication approaches.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3324265B1Interlocking flexible segments formed from a rigid material
Publication Date: 2021.09.08 APPLE INC
  • EP3324265B1 patent drawingFigure 1
  • EP3324265B1 patent drawingFigure 2A
  • EP3324265B1 patent drawingFigure 2B

AI summary

A method for creating a flexible portion or bending portion within a rigid structure. The method can also be used for creating a flexible structure from a rigid material. The method includes providing a substantially rigid material, such as, but not limited to, metals, alloys, hard plastics, and the like, and selectively removing portions of the rigid material defining a geometric pattern in the rigid material. A bending radius of the flexible portion is defined by the geometric pattern. The rigid structure may be used to create an enclosure, a cover for an electronic device, one or more hinges, or the like.