Quick-action roll-up door
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Solution Overview
Problem
Existing quick-action roll-up doors for cold storage rooms require complex and expensive mechanisms for precise adjustment between drives to ensure a sealed fit and rapid lifting of the pressure application frame, complicating the construction and increasing costs.
Innovation Solution
Integration of a traction drive functionally connected to the winding drive to control the pressure application frame, using a combination of spring force and traction drive to apply pressure only in the closed position, simplifying the construction and reducing the need for a separate drive for the pressure application frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate drive is used for the pressure application frame, then the door panel can be pressed against the door frame for sealed closure, but the construction becomes complex and expensive requiring precise adjustments
Solution Approach 1:
The patent combines the winding drive for the door panel with the pressure application frame drive into a single integrated drive unit. This merging eliminates the separate drive mechanism while maintaining both the sealing function and the operational simplicity, directly resolving the contradiction between reliability and device complexity
Solution Approach 2:
The integrated drive unit performs multiple functions: it winds the door panel onto the shaft and simultaneously applies pressure to the pressure application frame for sealed closure. This multi-functionality eliminates the need for separate drives while maintaining both sealing capability and construction simplicity
2Reliability
If a separate drive is used for the pressure application frame, then the door can be sealed in closed position, but the mechanism requires precise adjustments for both sealed closure and rapid opening
Solution Approach 1:
By merging the two drive functions into one integrated unit, the patent eliminates the need for separate adjustments of two different drives. The single integrated drive requires only one adjustment process, significantly improving ease of operation while maintaining sealed closure capability
Solution Approach 2:
The integrated drive system automatically coordinates the pressure application and door winding functions without requiring external synchronization or multiple adjustment procedures. The system self-regulates the interaction between the door panel and pressure application frame, reducing adjustment complexity
3Speed
If spring force is used for opening the pressure application frame, then rapid opening is achieved, but a separate drive is needed for controlled closure
Solution Approach 1:
The patent merges the spring force mechanism with the drive-controlled pressure application into a single integrated system. The spring provides rapid opening force while the integrated drive controls the closure pressure application, eliminating the need for separate drives and reducing overall mechanism complexity
Solution Approach 2:
The integrated drive acts as an intermediary that coordinates the spring force for rapid opening with the controlled pressure application for closure. It manages the interaction between these two forces, allowing rapid opening while maintaining controlled closure without requiring additional separate drive mechanisms
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 the sealing efficiency and reduces construction complexity by integrating the traction drive with the winding drive, allowing for a high-pressure application force while minimizing friction and thermal losses, thus improving the operational efficiency and cost-effectiveness of the quick-action roll-up door.
Implementation Method 1
spring means (spring arrangement) which moves the pressure application frame in the opening direction
Implementation Method 2
traction drive, which is functionally connected to the winding drive for the door panel, and which controls the movement of the pressure application frame
Data Source
AI summary
A quick-action roll-up door (1) for a cold storage room has a flexible door panel (5), which is windable onto a horizontal shaft (4) in a vertical running direction for purposes of closing a door opening (2) bounded by a door frame (3). A winding drive (6) opens and closes the door, together with a pressure application frame (8), subjecting the door panel in a closing position to force, transverse to a planar face of the door panel, in the direction of the door frame. Furthermore, device features are provided, which apply force to the pressure application frame in the direction of the door frame when the roll-up door is closed, and relieve it when it is opened. The device features have a traction drive (14), which is functionally connected to the winding drive for the door panel, and which controls the movement of the pressure application frame.