Profiled Wall Skeleton for Impact-Resistant Sales Trailer
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Solution Overview
Problem
Sales trailers face challenges in achieving a balance between low weight for resource efficiency and high strength and resistance to impact and vandalism, particularly due to their solid walls and ceilings which increase weight and risk of damage during transport and use.
Innovation Solution
A sales trailer design featuring a cuboid box body with a non-detachable chassis, utilizing a cuboid skeleton structure formed by profiled edge profiles with high and low beads, providing strength and resilience while minimizing material usage, and incorporating a lifting device for adjustable height and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If solid walls and ceilings are used in sales trailers, then strength and resistance to impact are improved, but weight increases
Solution Approach 1:
The wall structure is segmented into a skeletal framework of vertical and horizontal profiles forming a grid pattern, with infill panels filling the spaces between profiles. This segmentation allows the wall to achieve required strength through the rigid framework while using lighter infill materials compared to solid walls.
Solution Approach 2:
The wall construction uses composite structure combining metal profiles (vertical and horizontal elements) with infill panels that can be made of various materials including transparent or translucent materials. This composite approach provides structural strength from the metal framework while reducing overall weight compared to solid metal walls.
2Weight of moving object
If lightweight materials are used to reduce weight, then resource consumption during transport is reduced, but strength and resistance to vandalism decrease
Solution Approach 1:
The wall is divided into a load-bearing skeletal framework and non-load-bearing infill panels. The framework provides structural strength and vandalism resistance, while the infill panels can be lightweight transparent or translucent materials that contribute minimal weight but maintain the required strength through the supporting profile structure.
Solution Approach 2:
Different parts of the wall structure have different properties: the vertical and horizontal profiles provide structural strength and rigidity, while the infill panels provide transparency or translucency with minimal weight. This local differentiation of material properties allows the wall to achieve both lightweight construction and adequate strength where needed.
Data Source
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AI summary
The present invention relates to a sales trailer with a chassis (3) having at least two wheels (4) and with a cuboid box body (2), wherein the chassis (3) and the box body (2) are permanently connected to one another. In order to provide a sales trailer that has walls with high strength and resistance to impact while maintaining a low overall weight, the invention proposes that the twelve edges of the cuboid box body (2) are formed by four vertical (9), four longitudinally extending (10), and four transversely extending edge profiles (10'), which together form a cuboid skeleton structure of the box body (2), wherein four of the edge profiles (9, 10, 10') each frame one of two side walls (16, 16'), one of two end walls (17, 17'), the floor (18), and the roof (19) opposite the floor of the box body.wherein the floor has recesses into which the wheels of the chassis partially project, and wherein at least both side walls (16, 16') and an end wall (17) with the exception of wall openings (23) are profiled by straight, trapezoidal high ribs (7) (upper chords) and low ribs (8) (lower chords) extending in cross-section.