High Speed Door Collapsible Guide Realignment
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Solution Overview
Problem
High-speed industrial doors face challenges in maintaining sealing integrity and reducing wear on flexible parts due to high-speed operation, which affects environmental and security requirements in applications like cold storage and clean rooms.
Innovation Solution
The high-speed door assembly incorporates collapsible and retractable guides with angled realignment surfaces and a sensor system to manage door panel movement, ensuring proper alignment and reducing wear by allowing partial retraction upon impact and automatic realignment, along with a motor control system for optimal speed adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the door panel is operated at high speed to enhance productivity, then the opening and closing speed is improved, but the sealing integrity deteriorates due to high wear on seals
Solution Approach 1:
The guide structure is designed to be dynamic rather than static. The guide allows the door panel to move freely during normal high-speed operation, but automatically activates to realign the panel when displacement occurs, adapting its constraint level based on operational conditions
Solution Approach 2:
The guide system performs self-realignment without external intervention. When the door panel becomes displaced, the guide's angled surfaces automatically guide the panel back to its correct position, and the system self-adjusts to allow or restrict movement based on the operational state
2Manufacturing precision
If the guide structure is made rigid to maintain door alignment, then the positioning accuracy is improved, but the wear on flexible parts increases due to lack of movement accommodation
Solution Approach 1:
The guide transitions from a static rigid structure to a dynamic system that adjusts its behavior. During normal operation, it maintains alignment precision, but during displacement events, it becomes more compliant to accommodate movement and reduce wear
3Stability of the object's composition
If the guide extends fully into the opening to prevent door displacement, then the positioning stability is improved, but the opening width for vehicle passage is reduced
Solution Approach 1:
The guide is positioned and configured in advance to provide realignment capability. The angled surfaces are pre-positioned to automatically guide the door panel back to alignment when displacement occurs, preventing the need for the guide to extend fully into the opening path
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
This solution enhances sealing integrity and reduces wear on the door assembly, maintaining environmental and security standards while allowing for efficient and safe operation at high speeds.
Implementation Method 1
the door includes a portion of either the first or second guide being flexible so as to retreat at least partially from protrusion into the opening width upon impact thereto and being capable of substantially returning to an operative configuration
Implementation Method 2
each guide includes realignment surfaces angled to facilitate automated return of the door panel into their respective guides whether or not the dislodgement moved the door panel away from the opening or into the width of the opening
Data Source
Figure 1~2
Figure 3~4
Figure 5~6B
AI summary
A high-speed door assembly has a shaft or drum having a longitudinal axis which is configured so that the longitudinal axis is parallel with a wall to which the door assembly is mounted. A flexible door panel is attached to the shaft or drum so as to be capable of being wound and unwound about the drum for selectively permitting and prohibiting access through an opening in the wall to which the door assembly is mounted, the door panel being wound on the shaft or drum in an orientation such that the door panel defines at least one vertical plane when unwound from the shaft or drum, the vertical plane being spaced further from the wall to which the door assembly is mounted than the longitudinal axis of the shaft or drum. The door panel preferably having at least a portion of its width being substantially equal to or less than the width of the opening and is preferably used with guides which extend into the width of an opening passage of a door while being able to retreat, retract or collapse from their position extended into the door width upon experiencing an impact by an atypical force which can dislodge the door panel from the guides.