Wall Panel Interlocking Mechanism for Gap-Free Gluing

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Solution Overview

Problem

Existing wall and ceiling panels with convex and concave end sides require pushing to connect, resulting in openings and preventing gluing to a substrate, due to their concave/convex design.

Innovation Solution

The panels feature first and second connecting means with projections and recesses that allow horizontal interlocking without visible openings, enabling connection without pushing and allowing gluing, with flexible parts that generate a strong interlocking force for a flat connection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If panels with convex and concave end sides are connected by pushing, then horizontal interlocking is achieved, but visible openings are formed and gluing to substrate is prevented

Engineering Contradiction:
Improvehorizontal interlockingVSAvoidvisible openings
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The connecting means are segmented into multiple parts: a first part forming the convex/concave structure for horizontal interlocking, and a second part forming a projection that extends into the recess to close the gap. This segmentation allows different parts to serve different functions - structural interlocking and gap closure - simultaneously resolving both the need for horizontal stability and the need to eliminate visible openings.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The second part of the first connecting means is nested within the recess of the second connecting means. This nesting arrangement allows the projection to fit precisely into the recess, ensuring that the panels make contact at the end sides and close the gap completely, thereby eliminating visible openings while maintaining the horizontal interlocking provided by the first part.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Reliability

If panels with convex and concave end sides are pushed to connect, then horizontal interlocking is achieved, but gluing to substrate becomes impossible

Engineering Contradiction:
Improvehorizontal interlockingVSAvoidgluing capability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The connecting means incorporate flexible elements that allow dynamic adjustment during connection. The first part provides rigid horizontal interlocking, while the second part with the projection can flexibly engage with the recess to close gaps. This dynamic design enables the connection to adapt to different installation scenarios, including both pushed connections for horizontal interlocking and glued connections to substrates, without compromising either function.

Inventive Principle:
Principle #15Dynamics

3Strength

If the second part of the first connecting means is rigid, then structural strength is maintained, but the ability to engage smoothly with the recess is reduced

Engineering Contradiction:
Improvestructural strengthVSAvoidengagement smoothness
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The second part of the first connecting means is designed as a flexible projection rather than a rigid structure. This flexibility allows the projection to smoothly engage with and fit into the recess during connection, reducing installation difficulty. At the same time, the projection maintains sufficient structural strength to effectively close the gap and provide a secure connection when engaged.

Inventive Principle:
Principle #30Flexible shells and thin films

Data Source

PatentEP3724418B1Wall or ceiling panel glueable to a surface
Publication Date: 2022.04.13 BUILD TECH IP
  • EP3724418B1 patent drawingFigure 1~2
  • EP3724418B1 patent drawingFigure 3~4

AI summary

The present invention relates to a wall or ceiling panel (1, 1') with an upper surface (6), wherein said panel (1, 1') comprises a first end side (2) provided with first connecting means (4) and a second end side (3) located opposite the first end side (2) provided with second connecting means (5), which connecting means (4, 5) are suitable for connecting the end sides of adjacent panels (1, 1') to each other by engagement of the first connecting means (4) with the second connecting means (5), wherein the first connecting means (4) are formed by a first projection (7) connected to the upper surface (6, 6') that comprises at least two parts (8, 9), a first downward- facing part (8) that is connected to the upper surface (6) and a second part (9) with a free end, wherein the second part (9) is connected to the first part (8) and faces upward.