Folded Panel Manufacturing with Template-Guided Transition Section

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Solution Overview

Problem

Existing methods for manufacturing folded panels often result in unpredictable transition sections during bending, leading to potential breakage and inconsistent shapes, which can be a challenge for applications requiring precise curvature and stability.

Innovation Solution

A template with a curved end face is inserted into the recess before folding, guiding the transition section to a predefined shape, and then removed after folding, ensuring consistent angles and minimizing adhesive usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If adhesive is applied as filler in the recess to support the transition section, then the folded condition is stabilized, but the transition section shape becomes unpredictable and breakage risk increases

Engineering Contradiction:
Improvestability of folded conditionVSAvoidshape consistency of transition section
Core Design Contradiction:
Stability of the object's compositionVSManufacturing precision

Solution Approach 1:

A template is inserted into the recess before the folding operation to pre-establish the correct geometric path for the transition section. This preliminary action ensures that when folding occurs, the transition section follows a predetermined trajectory, guaranteeing consistent shape and position regardless of adhesive properties.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The template acts as an intermediary element between the folding mechanism and the transition section. It provides a physical guide that mediates the bending process, ensuring the transition section achieves the desired curvature and position without direct reliance on adhesive support during the critical shaping phase.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Manufacturing precision

If template is inserted into recess before folding to guide transition section, then shape consistency is improved, but manufacturing complexity increases

Engineering Contradiction:
Improveshape consistency of transition sectionVSAvoidcomplexity of manufacturing process
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The manufacturing process is segmented into distinct sequential steps: template insertion, folding operation, template removal, and adhesive application. This segmentation allows each step to be optimized independently and simplifies the overall process control, as the template is a simple geometric element rather than a complex mechanism.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The template is designed as a simple, inexpensive, single-use component that is inserted and then removed after serving its guiding function. Its temporary nature means it doesn't need to be durable or complex, just sufficiently rigid to guide the folding. This approach keeps the added complexity minimal while achieving the precision goal.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Reliability

If template is used to define precise folding path, then transition section breakage is minimized, but adhesive usage increases

Engineering Contradiction:
Improverisk of breakage in transition sectionVSAvoidadhesive consumption
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The template pre-establishes the correct geometry and position of the transition section before adhesive is applied. This preliminary shaping ensures that the transition section is already in its final desired configuration, minimizing the need for excessive adhesive to maintain position and reducing overall adhesive consumption.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The template enables the transition section to self-position and self-shape during the folding process through geometric constraint alone, without relying on adhesive forces. This self-service mechanism during the critical folding phase reduces the burden on the adhesive, allowing for more efficient adhesive usage.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP4062007B1Method for manufacturing a folded panel, and a folded panel
Publication Date: 2024.05.01 UNILIN BVBA
  • EP4062007B1 patent drawingFigure 1~3
  • EP4062007B1 patent drawingFigure 4~5
  • EP4062007B1 patent drawingFigure 6

AI summary

Method for manufacturing a folded panel (1') including the following steps: providing a longitudinal recess (6) at the rear side (3), such that at the front side (2) between remaining panel sections (1a, 1b) on both sides of the recess (6) a flexible transition section (7) remains, bending the panel sections (1a, 1b) relative to each other and applying an adhesive in the recess (6). Before the panel sections (1a, 1b) are bent relative to each other, a template (8) is inserted into the recess.