Metal Interior Attachment Structure With Mechanical Interlocking

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Solution Overview

Problem

Existing interior material attachment structures for metal plates like aluminum, brass, and copper are costly, inefficient, and require multiple construction processes, often using harmful adhesives, and lack flame retardant properties.

Innovation Solution

A one-touch interior material attachment structure with rectangular binding protrusions and connection grooves, allowing for efficient assembly of metal interior materials on a flat wall surface using connectors, eliminating the need for adhesives and simplifying the construction process while ensuring flame retardancy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If adhesive is used to attach interior material to metal base material, then adhesion strength is improved, but fire safety deteriorates due to combustible adhesive

Engineering Contradiction:
Improveadhesion strengthVSAvoidfire safety
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The patent removes the adhesive layer entirely from the attachment system. Instead of using adhesive to bond the interior material to the metal base material, the design uses mechanical interlocking through protrusions and recesses, eliminating the combustible adhesive while maintaining attachment strength

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the chemical bonding mechanism (adhesive) with a mechanical bonding mechanism (protrusion-recess interlocking). The attachment structure uses physical geometric features to achieve strong bonding without requiring any adhesive substance, thereby eliminating fire hazards associated with adhesives

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If multiple construction processes are used for attachment, then attachment reliability is improved, but construction time and cost increase

Engineering Contradiction:
Improveattachment reliabilityVSAvoidconstruction time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent combines multiple attachment functions into a single integrated structure. The protrusions and recesses are formed as integral parts of the interior material and base material respectively, allowing simultaneous alignment, positioning, and bonding in one operation rather than requiring separate steps for each function

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The attachment structures (protrusions and recesses) are pre-formed during the manufacturing process of the interior material and base material. This preliminary preparation eliminates the need for on-site construction of attachment features, allowing for rapid assembly during installation

Inventive Principle:
Principle #10Preliminary action

3Strength

If adhesive is applied to protect sheet and hot melt sheet, then adhesion property is improved, but flame retardant property deteriorates

Engineering Contradiction:
Improveadhesion propertyVSAvoidflame retardant property
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The patent removes the adhesive layer from the protection sheet and hot melt sheet assembly. The attachment is achieved through mechanical interlocking features formed during manufacturing, eliminating the need for adhesive and preserving flame retardant properties

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces chemical adhesion (adhesive) with mechanical interlocking (protrusions and recesses). This substitution maintains strong attachment while preserving the flame retardant characteristics of the metal base material and protection sheet

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentEP3757312B1Metal interior material and interior material attachment structure
Publication Date: 2023.06.07 SAMWON ACT CO LTD
  • EP3757312B1 patent drawingFigure 1
  • EP3757312B1 patent drawingFigure 2~3
  • EP3757312B1 patent drawingFigure 4

AI summary

The present disclosure relates to interior material attachment structure with wall attachment part bolt grooves, including: binding protrusions formed at the outermost part of the interior material attachment structure in order to attach the metal interior material; and connection part grooves formed adjacent to the binding protrusions in order to connect the plurality of interior material attachment structures to each other.