Dock Leveler Sealing System with Segmented Foam Pads
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Solution Overview
Problem
Conventional loading dock systems experience energy losses and undesirable conditions due to gaps around the top and sides of trailers and loading docks, allowing conditioned air to escape and outside elements to enter, which are not effectively sealed by existing seals.
Innovation Solution
A sealing system for dock levelers comprising a bottom seal and side seals that attach to the dock leveler and bumpers, using compressible foam pads enclosed in durable fabric covers, with hook and loop fastening systems and tether assemblies to ensure effective sealing across various dock leveler positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional dock seals are used to seal gaps around trailers, then some sealing effect is achieved, but energy losses and undesirable conditions persist due to ineffective sealing
Solution Approach 1:
The sealing system is divided into multiple independent seal elements (first seal element, second seal element, third seal element) positioned at different locations (top, sides, bottom). Each seal element independently addresses specific gap locations, collectively providing comprehensive sealing coverage that eliminates energy losses while maintaining reliability.
2Adaptability or versatility
If a fixed sealing structure is used, then sealing at one position is effective, but the system cannot adapt to different dock leveler positions and trailer alignments
Solution Approach 1:
The seal elements are designed to be movable rather than fixed. The first seal element can move vertically along the dock opening, the second seal element can move horizontally along the trailer sides, and the third seal element can move vertically at the bottom. This dynamic configuration allows the sealing system to adapt to various dock leveler positions and trailer alignments without increasing overall structural complexity.
3Loss of energy
If comprehensive sealing coverage is implemented at all gaps, then energy loss is reduced, but the system complexity and number of components increase
Solution Approach 1:
Each seal element is specifically designed and positioned to address the unique sealing requirements of its location. The first seal element addresses the top gap with vertical movement capability, the second seal element addresses the side gaps with horizontal movement, and the third seal element addresses the bottom gap with vertical movement. This localized optimization achieves comprehensive energy sealing without unnecessary complexity in each individual component.
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 sealing system effectively seals gaps between the dock leveler, trailer, and pit floor, reducing energy losses and maintaining a controlled environment by adapting to different dock leveler positions and trailer alignments.
Implementation Method 1
compressible foam pads enclosed in durable fabric covers
Data Source
AI summary
Dock leveler sealing systems include a bottom seal configured to be attached to an underside of a dock leveler deck and extend transversely thereto, and two side seals configured to be attached to opposite end portions of the bottom seal and extend forwardly therefrom. The side seals can be shaped and sized to effectively seal openings and/or gaps that may exist between the bottom seal, the deck lip, a shipping vehicle, a dock bumper, and/or the building floor.