Double-Walled Truck Wall Section With Segmented Covers

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Solution Overview

Problem

Existing vehicle body wall sections for trucks and containers face challenges in achieving high stability while maintaining ease of assembly and minimizing material usage, as well as ensuring the outer surface remains visually appealing even if the inner structure buckles.

Innovation Solution

A double-walled wall section design featuring a beaded basic profile with alternating inner and outer sections, where outer and inner recesses are covered by respective covers, providing high stability and allowing for easy assembly and damage isolation between inner and outer walls, with connections such as welding, gluing, or rivets for secure attachment, and the use of sealing compounds to prevent moisture entry.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If a complex profile connection system is used to achieve high wall stability, then the stability is improved, but the assembly complexity increases significantly

Engineering Contradiction:

Improvewall stabilityVSAvoidassembly complexity

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The wall section is divided into modular components: U-shaped profiles forming the basic structure, with separate inner and outer covers that can be independently assembled. This segmentation allows for simpler assembly while maintaining structural stability through the modular design.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The inner cover and outer cover are merged with the U-shaped profile through simple connection means (screws, clips, or welding) to form an integrated double-walled structure. This merging provides stability while keeping the assembly process straightforward compared to complex interlocking profiles.

Inventive Principle:

Principle #5Merging (Combining)

2Strength

If profiled sheets are used between wall surfaces to maintain distance, then the load capacity is improved, but the wall weight and material usage increase

Engineering Contradiction:

Improveload capacityVSAvoidwall weight

Core Design Contradiction:

StrengthVSWeight of stationary object

Solution Approach 1:

The inner and outer covers act as thin-walled structures that maintain the distance between wall surfaces while using minimal material. These covers provide the necessary structural support for load capacity without the excessive weight that would result from thick profiled sheets.

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The double-walled construction with space between inner and outer covers creates a composite structure that enhances load capacity through the combined effect of both walls and the air gap, achieving high strength-to-weight ratio without requiring heavy material usage.

Inventive Principle:

Principle #40Composite materials

3Shape

If the outer wall is made thin to maintain visual appearance, then the aesthetic quality is improved, but the structural durability decreases

Engineering Contradiction:

Improvevisual appearanceVSAvoidstructural durability

Core Design Contradiction:

ShapeVSReliability

Solution Approach 1:

The wall is segmented into inner and outer functional layers: the outer cover provides the smooth visual appearance, while the inner cover and U-shaped profile provide the structural durability. This segmentation allows each layer to optimize for its specific function without compromise.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The double-walled design with space between the covers provides a cushioning effect that protects the thin outer wall from damage. If the outer wall is damaged, the inner wall remains intact, providing beforehand protection against complete structural failure.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

4Stability of the object's composition

If multiple sheet metal overlaps are used to create double wall, then the stability is improved, but the manufacturing complexity and material usage increase

Engineering Contradiction:

Improvewall stabilityVSAvoidmanufacturing simplicity

Core Design Contradiction:

Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The wall structure is segmented into distinct components (U-shaped profile, inner cover, outer cover) that can be manufactured separately using simple processes and then assembled. This avoids the complex multi-layer overlapping and forming operations required for integrated double-walled sheets.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The U-shaped profile serves multiple functions: it provides the basic structural framework, supports both inner and outer covers, and contributes to the overall stability. This multi-functionality reduces the need for additional specialized components, simplifying manufacturing.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentEP2330022B1Double walled wall section and vehicle body or container with such a wall section

Publication Date: 2012.02.15 KEREX S R O

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AI summary

The double-walled wall section comprises an outer recess (9) which is provided with an outer cover (10) which runs between two adjacent intermediate sections (7) and the outer sections (6) lying against the intermediate sections. An outer side (4) of a wall section is provided with an inner cover (11) which runs between the adjacent intermediate sections and the inner sections (5) lying against the intermediate sections. An independent claim is also included for a vehicle assembly with a base section.