Dock Leveler Weather Shield for Condensation Control
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Solution Overview
Problem
The area underneath a dock leveler is typically exposed to outdoor air, leading to issues such as condensation, corrosion, and heat loss due to temperature differentials, which existing solutions do not adequately address.
Innovation Solution
A weather shield system that moves with the dock leveler and its lip, maintaining an effective seal across various positions and accommodating the movement of the deck and lip, while being adjustable to fit different pit widths and preventing obstruction of the open area underneath the dock leveler.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the dock leveler deck is exposed to outside air, then the structure remains simple and accessible, but condensation and corrosion occur due to temperature differentials
Solution Approach 1:
The patent employs a flexible weather shield made of weather-resistant material that can be rolled out and positioned underneath the dock leveler deck. This flexible membrane creates a protective barrier against condensation and corrosion while maintaining simplicity of installation and removal, directly addressing the harmful environmental factors without requiring complex permanent structures
Solution Approach 2:
The shield system is designed to be dynamically deployable and adjustable. The flexible shield can be rolled out to different positions and adjusted to accommodate various deck heights and vehicle positions, providing adaptive protection against environmental factors while maintaining system simplicity through minimal mechanical components
2Object-affected harmful factors
If a fixed seal is installed underneath the dock leveler, then protection from weather is improved, but the seal cannot accommodate the movement of the deck and lip
Solution Approach 1:
The flexible weather shield can bend and conform to the changing geometry of the dock leveler system as the deck and lip move. This flexibility allows the shield to maintain continuous protection against weather while accommodating the full range of motion of the movable components without requiring complex articulated joints or multiple segmented seals
Solution Approach 2:
The shield system transitions from a static fixed seal to a dynamic flexible barrier that can be positioned and adjusted. The flexible shield moves with the deck and lip, maintaining effective weather protection throughout the operational range of motion through its ability to deform and reposition rather than through complex mechanical articulation
3Strength
If a rigid shield structure is used to seal the area underneath the deck, then structural strength is improved, but the shield cannot accommodate varying pit widths and vehicle positions
Solution Approach 1:
The flexible weather shield provides sufficient structural strength to act as a barrier against weather elements while inherently adapting to different pit widths and vehicle positions. The flexibility of the material allows it to span varying gaps and conform to different geometries without requiring rigid support structures or complex adjustment mechanisms
Solution Approach 2:
The shield system accommodates varying parameters (pit width, vehicle position, deck height) by allowing the flexible shield to be positioned at different locations and orientations. The same flexible shield can effectively seal different configurations by changing its position and shape rather than requiring structural modifications
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
The weather shield system effectively seals the gap underneath the dock leveler, preventing air infiltration and temperature-related issues, reducing corrosion and heat loss, and ensuring the dock leveler operates efficiently across different positions and vehicle types.
Implementation Method 1
a heated building during the winter may lose a significant amount of heat by thermal conduction through the deck, as cold outside air cools the deck from underneath
Implementation Method 2
Warm outside air, for example, may condense underneath a relatively cool deck of a dock leveler used in a cold storage warehouse
Data Source
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AI summary
An example dock leveler disclosed herein includes a deck and a lip structure translatable relative to the deck. A frame is disposed within a pit underneath the deck and includes a deck-supporting surface. A deck-supporting foot extends from the lip structure to engage the deck-supporting surface. A weather shield has a lower end and an upper end, the lower end of the weather shield coupled to at least one of the frame and a wall of the pit, the upper end of the weather shield is carried by the lip structure, the lower end of the weather shield is positioned forward of the deck-supporting foot when the deck is in a cross-traffic position while the lip structure is in a retracted position, and the deck-supporting foot is positioned forward of the lower end of the weather shield when the lip structure is in an extended position.