Dock Leveller Weather Shield with Flexible Curtain
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Solution Overview
Problem
Current shield systems for loading docks fail to effectively seal the area underneath dock levelers, leading to issues such as condensation, corrosion, and heat loss, and are often difficult to custom fit to existing dock levelers, with existing solutions either relying on rigid structures that interfere with operating mechanisms or requiring complex sizing and cutouts.
Innovation Solution
A flexible web or curtain system suspended from the dock leveler's lip, supported by a tensioner, which can collapse to facilitate below-dock operations and is adaptable to various dock leveler configurations, ensuring effective sealing without interfering with operating mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rigid rectangular panel shield is used to seal the area underneath a dock leveler, then sealing effectiveness is improved, but adaptability to existing dock levelers deteriorates and interference with operating mechanisms occurs
Solution Approach 1:
The patent applies the dynamics principle by making the shield flexible rather than rigid. The shield is constructed from flexible materials such as fabric, vinyl, or plastic that can dynamically adjust to different dock leveler configurations and operating positions. This flexibility allows the shield to adapt to various deck opening degrees and accommodate different dock leveler mechanisms without requiring custom fitting or creating interference, while still maintaining effective sealing when deployed.
Solution Approach 2:
The patent applies parameter changes by allowing the shield's physical state to change from a compact stored position to an extended deployed position. The shield can be configured in different states (folded, extended, adjusted) to match the operational requirements of various dock levelers. This parameter flexibility enables the same shield design to work with multiple dock leveler types and configurations without sacrificing sealing effectiveness.
2Reliability
If a rigid rectangular panel shield is used to seal the area underneath a dock leveler, then sealing effectiveness is improved, but device complexity increases due to required cutouts and custom sizing
Solution Approach 1:
The flexible nature of the shield eliminates the need for precise cutouts and custom sizing. Instead of requiring complex static shaping, the flexible material can be简单地 attached and will conform to the necessary shapes and openings dynamically during operation. This reduces manufacturing complexity while maintaining sealing effectiveness through proper material selection and attachment mechanisms.
3Adaptability or versatility
If the dock leveler lip is used to shield the underside of the ramp, then adaptability is maintained, but sealing effectiveness deteriorates due to exposure during lip movement
Solution Approach 1:
The patent introduces a flexible shield as an intermediary element between the dock leveler components and the external environment. This shield acts as a mediator that provides continuous sealing coverage during lip movement, preventing direct exposure of the ramp underside to outside air. The shield can be positioned and adjusted to maintain sealing effectiveness throughout the entire range of motion of the dock leveler lip, while the dock leveler itself maintains its adaptability to various configurations.
4Object-affected harmful factors
If a shield system is installed to prevent weather ingress, then protection against condensation and corrosion is improved, but ease of installation deteriorates due to custom fitting requirements
Solution Approach 1:
The flexible shield design simplifies installation by eliminating the need for precise custom fitting and complex attachment procedures. The flexible material can be easily attached to various dock leveler configurations using simple fastening methods, and can be adjusted in the field to achieve proper sealing. This dynamic adaptability significantly improves ease of installation while maintaining protection against condensation and corrosion through effective weather sealing.
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 flexible curtain system provides a versatile and effective seal that adapts to different dock leveler configurations, preventing weather ingress and maintaining operational integrity while allowing for easy installation and compatibility with various dock leveler designs.
Implementation Method 1
A flexible web or curtain system suspended from the dock leveler's lip... provides a versatile and effective seal that adapts to different dock leveler configurations, preventing weather ingress
Implementation Method 2
A flexible web or curtain system suspended from the dock leveler's lip, supported by a tensioner
Data Source
Figure 1
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AI summary
A loading dock comprising a dock leveller with a pivotal deck (20) and a shield system (80) for shielding an area underneath the pivotal deck of the dock leveler installed at the loading dock, the shield system (80) comprises a flexible curtain (82) suspended from the pivotal deck and a tensioner (84) coupled to the curtain (82), the tensioner (84) applying vertical tension to the curtain (82).