Ventilated Cargo Trailer Cover to Prevent Snow Melt Freezing

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Solution Overview

Problem

Trailers for cargo transportation face issues with heat from snowmobile engines causing snow to melt and freeze, preventing access to the trailer due to the cover structure freezing shut.

Innovation Solution

A trailer design with a front wall section featuring an air inlet and deflector member to direct airflow, enhancing ventilation and preventing snow melt, combined with a rear wall section that forms a ramp for easy loading and unloading, and strategically placed outlets to maintain overpressure and block contaminants.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If the cover structure is sealed to protect cargo, then protection from elements is improved, but heat dissipation deteriorates causing snow melt and freezing

Engineering Contradiction:
Improveprotection from elementsVSAvoidheat dissipation
Core Design Contradiction:
Object-affected harmful factorsVSTemperature

Solution Approach 1:

The front wall section is segmented to include a specific opening for air inlet, separating the protective cover structure into functional zones: most of the cover remains sealed for protection, while the designated opening allows controlled ventilation for heat dissipation without compromising overall protection

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A deflector member is introduced as an intermediary element mounted on the inside surface of the front wall section. This deflector mediates between the incoming airflow and the cargo, directing airflow to optimize heat dissipation while preventing direct contamination of the cargo by external elements

Inventive Principle:
Principle #24Intermediary (Mediator)

2Temperature

If air inlet openings are provided for ventilation, then heat dissipation is improved, but contamination from dirt and moisture deteriorates

Engineering Contradiction:
Improveheat dissipationVSAvoidcontamination from dirt and moisture
Core Design Contradiction:
TemperatureVSObject-affected harmful factors

Solution Approach 1:

The deflector member serves as a mediator that separates the beneficial airflow (for heat dissipation) from harmful contaminants. It is mounted on the inside surface of the front wall section and configured to deflect airflow in a way that allows air to enter for ventilation while preventing dirt and moisture from reaching the cargo

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The front wall section has differentiated local qualities: the opening area allows airflow for heat dissipation, while the deflector member creates a localized protective zone that directs airflow away from contaminants, giving different parts of the same structure different functional properties

Inventive Principle:
Principle #3Local quality

3Reliability

If the cover structure is locked for secure transport, then security is improved, but access for loading/unloading deteriorates

Engineering Contradiction:
Improvesecurity during transportVSAvoidaccess for loading and unloading
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The cover structure is designed with dynamic characteristics, allowing it to transition between locked (for secure transport) and unlocked (for access) states. The pivotable connection enables the cover to be moved between positions, providing security during transportation while facilitating easy access when needed

Inventive Principle:
Principle #15Dynamics

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Effectively dissipates heat from cargo, prevents snow melt and cover freezing, maintains cleanliness, and facilitates safe and easy loading/unloading through enhanced ventilation and structural design.

Implementation Method 1

a deflector member is mounted on an inside surface of the front wall section, the deflector member being configured to deflect an airflow entering the space via the at least one inlet opening

Methodology Applied
Scientific EffectAirflow deflection:

Implementation Method 2

an enhanced ventilation is provided which may efficiently dissipate heat from cargo loaded on the trailer, such as from an engine of a snowmobile

Methodology Applied
Scientific EffectConvection: Convection

Data Source

PatentEP4361005B1Trailer for cargo transportation on road
Publication Date: 2026.01.28 TRAILER IND I ÅSELE AB
  • EP4361005B1 patent drawingFigure 1~2
  • EP4361005B1 patent drawingFigure 3~4

AI summary

The present invention relates to a trailer (1000) for cargo transportation on road comprising, a base structure (100) supported by wheels (110) and defining a loading surface, a cover structure (200) supported by the base structure (100) and defining a space above the loading surface, wherein the cover structure (200) comprises a front wall section (210) facing an intended travel direction of the trailer (1000), wherein the front wall section (210) is provided with at least one inlet opening (212) forming an air inlet to the space, wherein a deflector member (300) is mounted on an inside surface of the front wall section (210), the deflector member (300) being configured to deflect an airflow entering the space via the at least one inlet opening (212) in response to moving the trailer (1000) in the intended travel direction.