Spiral Bracket Roll-Up Door for High-Speed Tall Openings
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Solution Overview
Problem
High speed roll-up doors with sectional slats face limitations in height due to the strength and spacing parameters of spiral brackets, which can deform under high speed operation and limit door height, affecting speed and reliability.
Innovation Solution
Robust spiral brackets with efficient spacing and durable rollers, combined with a unique assembly configuration and a double-belt counterweight mechanism, ensure faster and quieter operation while withstanding greater loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If ductile material with large spacing is used for spiral bracket, then ease of manufacture is improved, but operation speed deteriorates and door height is limited
Solution Approach 1:
The patent changes the material parameter from ductile to high-strength material, and adjusts the spacing parameter to be smaller and more optimized. This allows the spiral bracket to withstand high-speed operation forces while maintaining manufacturability through standardized high-strength material selection and precise spacing design.
Solution Approach 2:
The patent employs composite construction by combining high-strength material properties with optimized geometric spacing parameters. The spiral bracket integrates both material strength and structural configuration to achieve high-speed performance while remaining manufacturable.
2Ease of manufacture
If ductile material with large spacing is used for spiral bracket, then ease of manufacture is improved, but reliability deteriorates due to deformation under high speed operation
Solution Approach 1:
The patent changes the material parameter from ductile to high-strength material, and optimizes the spacing parameter to prevent deformation. This ensures the spiral bracket maintains its structural integrity and reliability under high-speed operation conditions while remaining manufacturable.
3Ease of manufacture
If large spacing is used for spiral bracket, then ease of manufacture is improved, but door height is limited
Solution Approach 1:
The patent optimizes the spacing parameter to a smaller, more efficient value that enables greater door height. The high-strength material and precise spacing configuration allow the spiral bracket to support taller door configurations while maintaining ease of manufacture through standardized design parameters.
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 enables high speed roll-up doors to perform faster, quieter, and last longer with improved load capacity and ease of roller replacement.
Implementation Method 1
the bent strip welded with the second plate
Data Source
AI summary
This disclosure presents a safe high speed roll-up door with spiral brackets. To enable a high speed operation, robust spiral brackets having efficient spacing are provided to guide the plurality of sectional slats. Durable and low noise signature rollers are used. A unique assembly configuration of the slats and the tracks guiding the rollers enable quick replacement of each individual roller without disassembling the door. A double-belt counter weight mechanism balances the door and incorporates safety sensors that prevent loosening the belts when the door is jammed. The belts are further adjustable using ratchets such that adjustment for the horizontal balance as well as weight position is made effortless. In all, the high speed roll-up door using sectional slats performs faster and quieter, withstands greater loads, and lasts longer than other existing roll-up doors with spiral brackets.