Vehicle Decorative Element Openings Without Lamination Warping

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Solution Overview

Problem

Conventional decorative elements for vehicle interiors face challenges in achieving high lamination quality and efficiency due to wrinkle formation and warping during the lamination process, especially around functional openings, leading to complex designs being omitted and increased production time.

Innovation Solution

A method for manufacturing decorative elements with functional openings that involves using a cutting machine, such as a CNC laser cutting machine, to precisely cut and laminate the elements onto a carrier structure, ensuring stability and high reproduction precision, and filling openings with a filler material for light or sound permeability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If conventional decorative elements with functional openings are laminated onto a carrier structure, then the decorative element can be applied to the vehicle interior, but wrinkles and warping occur during lamination especially around functional openings, reducing lamination quality

Engineering Contradiction:
Improvelamination qualityVSAvoidwrinkle formation and warping
Core Design Contradiction:
Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The decorative element is pre-laminated onto a carrier foil before final application. This preliminary lamination provides stability during handling and alignment, preventing wrinkles and warping from occurring during the final lamination process onto the carrier structure

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

A carrier foil is introduced as an intermediary substrate. The decorative element is first laminated onto this carrier foil, which acts as a stable intermediate carrier that maintains the element's shape and position, eliminating warping issues during subsequent handling and final installation

Inventive Principle:
Principle #24Intermediary (Mediator)

2Manufacturing precision

If decorative elements are aligned and laminated with high precision to avoid wrinkles, then lamination quality improves, but the positioning and fixing process becomes time-intensive, reducing production efficiency

Engineering Contradiction:
Improvealignment precisionVSAvoidproduction speed
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

Alignment marks are pre-applied to both the decorative element and the carrier structure before the lamination process. These pre-marked reference points enable rapid and accurate alignment without time-consuming manual positioning, thus maintaining high precision while improving production speed

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The alignment marks are designed to self-align during the lamination process. The decorative element and carrier structure are positioned using these marks without requiring complex positioning equipment or manual adjustment, enabling fast and accurate alignment that maintains precision while significantly reducing positioning time

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If delicate bridges between functional openings are preserved to maintain design integrity, then pattern complexity can be maintained, but the decorative element becomes more prone to warping and deformation during lamination

Engineering Contradiction:
Improvedesign complexityVSAvoidstructural stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The decorative element is pre-laminated onto a carrier foil that provides comprehensive structural support across the entire element, including the delicate bridge regions. This preliminary support prevents warping and deformation during handling and alignment, allowing complex designs with delicate features to be maintained without compromising structural stability

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The combination of the decorative element material and the carrier foil creates a composite structure. This composite provides enhanced rigidity and dimensional stability to the otherwise flexible decorative element, particularly supporting delicate bridge regions while preserving the original design complexity and pattern integrity

Inventive Principle:
Principle #40Composite materials

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The method enables easy and high-quality lamination of decorative elements onto carrier structures without warping, allowing for complex designs and reducing production time, while maintaining stability and precision.

Implementation Method 1

a cutting element, in particular a laser beam, is sent from a laser-emitting device toward the clamped-in composite 10 and at least one functional opening 19 is cut-in into the decoration blank 2 by the laser beam

Methodology Applied
Scientific EffectLaser ablation: Laser Ablation

Data Source

PatentUS20240399731A1Method for producing a decorative element, which has a functional opening, for a motor vehicle, and decorative element
Publication Date: 2024.12.05 LISA DRAXLMAIER GMBH
  • US20240399731A1 patent drawing
  • US20240399731A1 patent drawing
  • US20240399731A1 patent drawing

AI summary

A method for the manufacturing of a decorative element, includes a functional opening, for a motor vehicle, as well as a decorative element. The method includes a decoration blank that includes a visible side and an adhesive side, and an application material layer that includes an adhesive side and a lamination side. The decoration blank is cut through along a functional opening contour by a cutting element of a cutting machine, and a waste piece is removed, forming the functional opening. The application material layer is applied onto the decoration blank by the adhesive side of the application material layer and the adhesive side of the decoration blank is adhered with each other by an adhesive layer. The functional opening is filled with a filler material that reacts into a cured state, wherein it is at least partially translucent, at least partially transparent, completely transparent, or light-impermeable.