Loading Dock Sealing Assembly with Impact-Absorbing Surface

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Solution Overview

Problem

Existing loading dock sealing systems fail to effectively seal against temperature differences and misalignment between vehicles and loading docks, leading to air leaks and structural damage due to inadequate deformation under load and shock absorption issues.

Innovation Solution

A sealing assembly with a flexible thermoplastic polymer element that deforms to seal against both the inside and outside surfaces of a vehicle cargo area, featuring an impact-absorbing surface and transverse sealing surfaces to accommodate misalignment and absorb shock loads, reducing the transfer of forces to the building structure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If foam blocks are used for sealing, then thermal insulation is improved, but shock absorption and deformation under load deteriorate

Engineering Contradiction:

Improvethermal insulationVSAvoidshock absorption

Core Design Contradiction:

TemperatureVSReliability

Solution Approach 1:

The sealing device uses a composite structure combining foam material (for thermal insulation) with rubber or plastic components (for shock absorption and deformation). The foam provides thermal insulation while the rubber/plastic layers absorb shock loads and deform under load to maintain sealing effectiveness.

Inventive Principle:

Principle #40Composite materials

2Temperature

If foam blocks are used for sealing, then thermal insulation is improved, but structural damage from force transfer deteriorates

Engineering Contradiction:

Improvethermal insulationVSAvoidstructural damage

Core Design Contradiction:

TemperatureVSObject-affected harmful factors

Solution Approach 1:

The sealing device incorporates rubber or plastic components that deform under load to cushion and absorb shock loads before they can be transferred to the building structure. This beforehand cushioning prevents structural damage while maintaining thermal insulation through the foam component.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

3Reliability

If inflatable bags are used for sealing, then shock absorption is improved, but obstruction hazards and puncturing susceptibility deteriorate

Engineering Contradiction:

Improveshock absorptionVSAvoidobstruction hazards

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The sealing device uses flexible rubber or plastic components that can deform to absorb shock loads without creating obstruction hazards. These flexible materials conform to the vehicle and loading dock surfaces, providing shock absorption while maintaining a clean, safe working environment without the puncturing risks of inflatable bags.

Inventive Principle:

Principle #30Flexible shells and thin films

4Reliability

If rigid sealing structures are used, then sealing effectiveness is improved, but adaptability to misalignment deteriorates

Engineering Contradiction:

Improvesealing effectivenessVSAvoidadaptability to misalignment

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The sealing device incorporates flexible components that can dynamically deform and adapt to misalignment between the vehicle and loading dock. The flexible rubber or plastic portions bend and conform to accommodate varying positions, maintaining sealing effectiveness despite misalignment while rigid portions provide structural support.

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

The solution provides a superior seal against temperature differences and misalignment, reducing air leaks and structural damage while maintaining sealing effectiveness under varying conditions and heavy loads, with reduced compressive loads on the building and improved resistance to abrasion.

Implementation Method 1

a flexible thermoplastic polymer element that deforms to seal against both the inside and outside surfaces of a vehicle cargo area

Methodology Applied

Scientific EffectElastic deformation: Elasticity

Implementation Method 2

The sealing element is formed of a flexible thermoplastic polymer that deforms under compressive loads applied by a vehicle cargo area frame

Methodology Applied

Scientific EffectViscoelastic deformation: Viscoelasticity

Data Source

PatentUS8991113B2Loading dock sealing apparatus and method

Publication Date: 2015.03.31 DL MANUFACTURING INC

AI summary

A method and apparatus are provided for sealing a vehicle cargo area to a loading dock. The method includes a step of providing a sealing element. The sealing element includes a mounting surface adapted to sealingly mate against a loading dock, an inner sealing surface at a transverse angle relative to the mounting surface, an outer sealing surface opposing the inner sealing surface and at a transverse angle relative to the mounting surface, and an impact-absorbing surface approximately parallel to the mounting surface. The method further includes the steps of contacting the impact-absorbing surface with a rear face of the vehicle cargo area, deforming the inner sealing surface away from the loading dock, and sealing the inner sealing surface against an inside wall of the vehicle cargo area.