Method for attaching an underlay element to a board element
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Solution Overview
Problem
Existing methods for attaching underlay elements to panels are inefficient, requiring excessive adhesive and are not cost-effective, particularly when applied to weight-reduced and flexible panels.
Innovation Solution
A method for attaching an underlay element to a weight-reduced board element with grooves by applying adhesive only on the remaining portion of the rear side, avoiding the grooves, and using a controlled application process to minimize adhesive usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If adhesive is applied to the entire surface of the board element, then bonding strength is improved, but the risk of delamination in the cavity increases due to adhesive accumulation
Solution Approach 1:
The patent applies adhesive only to specific regions of the board element surface rather than the entire surface. The adhesive application is localized to areas where bonding is needed, avoiding accumulation in the cavity region. This selective application maintains bonding strength while preventing delamination by ensuring the cavity remains substantially free of adhesive.
2Strength
If the cavity is completely filled with underlay material, then structural support is improved, but manufacturing precision deteriorates due to difficulty in achieving flush surfaces
Solution Approach 1:
The patent applies a release agent to the board element surface before applying the underlay material to the cavity. This preliminary action prevents the underlay material from adhering to the board element, allowing the cavity to be filled completely for structural support while enabling easy removal of excess material to achieve a substantially flush surface with the board element top surface.
3Reliability
If multiple processing steps are used to prepare the board element surface, then bonding reliability is improved, but manufacturing complexity increases
Solution Approach 1:
The patent combines the release agent application and underlay material application into a single integrated processing step. The release agent is applied to the board element surface, and subsequently the underlay material is applied to the cavity in the same continuous process flow, eliminating the need for separate, complex surface preparation steps while maintaining bonding reliability through proper surface treatment.
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
Reduces adhesive requirements, enhances efficiency, and lowers costs while maintaining effective attachment of the underlay element to the panel, allowing for continuous processing and easier recycling of materials.
Implementation Method 1
a release agent is applied to a surface of the board element. subsequently, an underlay material is applied to a cavity in the board element
Implementation Method 2
an adhesive is applied to a bonding surface of the underlay element. the underlay element is bonded to the board element
Data Source
Figure 1a~1c
Figure 2a~2e
Figure 3a~3e
AI summary
There is disclosed a method for attaching an underlay element (23) to a weight- reduced board element (1). The method comprises providing a board element and an underlay element, wherein a rear side (4) of the board element comprises a groove portion and a remaining portion. The groove portion comprises at least one groove (10). An adhesive (20) is applied on at least a portion of the remaining portion and/or on at least a portion of a corresponding residual portion of the underlay element, and the underlay element is arranged on the rear side of the board element, such that the adhesive contacts the underlay element and the rear side.