Lightweight Building Board Segmented Edge Design
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Solution Overview
Problem
Conventional lightweight panels with wooden support edges are inadequate in absorbing compressive forces perpendicular to the panel plane and local loads from dowels or screws, leading to potential damage and instability.
Innovation Solution
A lightweight panel design featuring a supporting edge composed of multiple separate individual layers, which are arranged and connected to form a stable structure that can withstand various loads, including those from dowels or screws, by providing recesses on the cover plates for individual layers to create a stop within the panel, allowing for optimal load distribution and increased stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a wooden bar or frame is used as supporting edge, then the panel can absorb compressive forces perpendicular to the panel plane, but it cannot adequately absorb local loads from dowels or screws and moment forces
Solution Approach 1:
The supporting edge is divided into multiple separate individual layers (at least two) instead of using a single wooden bar or frame. These layers are arranged with their outer sides facing each other and connected to the cover panels, creating a segmented structure that can better distribute and resist various types of loads including local loads from dowels or screws and moment forces.
Solution Approach 2:
The supporting edge uses a composite structure consisting of multiple individual layers that can be made from different materials or have different properties. This composite construction combines the advantages of different materials to achieve both compressive force absorption and resistance to local loads and moment forces.
2Device complexity
If a single-layer supporting edge is used, then the structure is simple, but it lacks stability under high pressure loads and local loads
Solution Approach 1:
The supporting edge is segmented into multiple individual layers that can be separately positioned and connected. This segmentation increases reliability by distributing loads across multiple elements rather than relying on a single layer, while maintaining relatively simple construction through the use of identical or similar layers.
Solution Approach 2:
Multiple individual layers are merged or combined to form the supporting edge structure. The outer sides of these layers face each other and are connected to the cover panels, creating a unified supporting structure that achieves high stability under various loads while maintaining construction simplicity.
3Strength
If recesses are provided in cover panels for each individual layer, then optimal load distribution is achieved, but manufacturing complexity increases
Solution Approach 1:
Resses are preliminarily formed in the cover panels at the appropriate positions before the individual layers are inserted. This preliminary action ensures optimal load distribution from the beginning, while the standardized nature of these recesses makes them easy to manufacture using conventional machining processes.
Solution Approach 2:
The recesses are provided only at specific locations where the individual layers need to be positioned, rather than throughout the entire cover panel. This local modification achieves optimal load distribution at critical points while minimizing the overall manufacturing complexity and maintaining ease of production.
Data Source
Figure 1a~1c
Figure 1d~1f
Figure 2a~2b
AI summary
The invention relates to a lightweight building board (1) having a top cover board (2a) extending parallel to a longitudinal plane (E), having a lower cover board (2b) extending parallel to the longitudinal plane (E), having a light middle layer (2c) extending between the upper cover board (2a) and the lower cover board (2b) and having at least one supporting edge (3) extending from the side of the upper cover board (2a) facing the middle layer (2c) to the side of the lower cover board (2b) facing the middle layer (2c) and disposed adjacent to the middle layer (2c) in the direction of the longitudinal plane (E). In order that the supporting edge (3) of the lightweight building board (1) optimally withstands various loads, the at least one supporting edge (3) comprises a plurality of separate individual layers (3a, 3b, 3c, 3d, 3e). The invention further relates to a method for producing such a lightweight building board (1) and to a device for carrying out the method.