Laminated Panel Slope Device Rigidity

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Solution Overview

Problem

Existing slope devices for vehicles, such as those described in Patent Literature 1 and 2, face limitations in providing reinforcement ribs that intersect with the direction of extrusion, leading to regions with low strength and rigidity, and stress concentration issues, particularly when used as a loading platform.

Innovation Solution

A laminated panel configuration featuring a core panel with vertical and flat portions, sandwiched by face plates and structural materials that include peripheral and connecting elements, allowing for improved rigidity and strength by eliminating low-strength regions and distributing loads effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the slope body is formed by extrusion processing, then manufacturing efficiency is improved, but the ability to provide reinforcement ribs in needed regions is worsened

Engineering Contradiction:
Improvemanufacturing efficiencyVSAvoidrib placement flexibility
Core Design Contradiction:
ProductivityVSStrength

Solution Approach 1:

The invention uses a composite structure consisting of a core panel (with or without corrugations), face plates, and structural materials joined together. This composite approach allows the slope body to achieve both manufacturing efficiency and the flexibility to place reinforcement ribs in needed regions, as the structural materials can be strategically positioned within the laminated structure without requiring constant cross-section extrusion.

Inventive Principle:
Principle #40Composite materials

2Strength

If reinforcement ribs are provided in needed regions, then strength and rigidity are improved, but device complexity increases

Engineering Contradiction:
Improvestrength and rigidityVSAvoidstructural complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The invention segments the slope body into a laminated structure with distinct components: core panel, face plates, and structural materials. This segmentation allows reinforcement ribs to be provided in needed regions through the strategic placement of structural materials, while the modular nature of the laminated structure helps manage and reduce overall device complexity.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS9944212B2Laminated panel
Publication Date: 2018.04.17 HONDA MOTOR CO LTD
  • US9944212B2 patent drawing
  • US9944212B2 patent drawing
  • US9944212B2 patent drawing

AI summary

A laminated panel is provided with: a core panel having a vertical wall portion which extends in a direction which intersects with a panel surface, and a flat portion which is formed to extend along the panel surface from an end portion of the vertical wall portion; a pair of face plates which sandwich the core panel from both sides; and a structural material in which a rectangular cross-section portion which sandwiches the flat portion of the core panel between the rectangular cross-section portion and one of the face plates is disposed. The structural material is provided with peripheral edge structural materials which are disposed along a pair of opposing edge portions of a peripheral edge of the laminated panel, and connecting structural materials which extend in a direction which intersects with the peripheral edge structural materials.