Rolling Gate Column Relaxation Channel Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing roller shutter systems suffer from damage and operational inefficiencies due to collision-induced jamming and constant bending/tensioning of door curtain edges, particularly in high-speed applications, which require significant structural modifications and additional loading during retraction.
Innovation Solution
The design incorporates a gate pillar with a guide slot and inclined sliding surface forming a relaxation channel next to the guide slot, allowing for smooth edge strip movement and tensioning without jamming, reducing friction and structural stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the door curtain is guided using traditional guides in high-speed roller doors, then the door curtain can be moved between open and closed positions, but the edge strips jam between the front of the door columns or between the bottom rail and the wall opening reveal during collision
Solution Approach 1:
The patent introduces an intermediary element - the relaxation channel with oblique guide surfaces - between the door curtain edge strips and the door column front. This intermediary structure allows the edge strips to be redirected away from the jamming zone during collision, preventing direct contact between the edge strips and the door column front or wall opening reveal.
Solution Approach 2:
The patent adds a new spatial dimension by creating oblique guide surfaces that extend outward from the door column front at an angle. This three-dimensional relief channel provides an additional escape path for the edge strips in the lateral dimension, preventing them from being constrained to a single平面 where jamming occurs.
2Strength
If tension cables are used to tension the door curtain, then the door curtain can be properly tensioned, but additional loading and structural effort are required during retraction
Solution Approach 1:
The patent extracts the tensioning function from the door column structure itself by providing relief channels that allow the curtain to self-tension during normal operation. The oblique guide surfaces enable the curtain to be pulled back into position after collision without requiring additional active tensioning mechanisms, reducing the need for complex structural support during retraction.
3Stability of the object's composition
If the edge strips are constantly bent and tensioned between the wall opening reveals, then the door curtain remains guided, but wear and damage increase significantly
Solution Approach 1:
The patent provides beforehand cushioning by creating relief channels with oblique guide surfaces that prevent edge strips from being forced against the door column front or wall opening reveal during collision. This preventive design cushions the edge strips from impact forces before damage can occur, reducing wear and extending service life.
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 design prevents edge strip jamming and bending, reduces wear and damage, and allows for efficient retraction of the door curtain without additional structural effort, enhancing operational reliability and reducing maintenance needs.
Implementation Method 1
the release groove formed according to the invention, preferably directly next to the guide slot at each door column, prevents the door curtain from jamming, particularly its edge strips, between the front of the door column(s) or between the bottom rail and the reveal of the wall opening
Data Source
Figure 1
Figure 2
Figure 2a
AI summary
The roller door (4) has a flexible door curtain (5) and a rotatably mounted, drivable winding shaft (12) that is provided for receiving and moving the door curtain between end positions. A vertically oriented relaxation channel (24) is arranged in a door column (10,11) of a guide slot (16). An independent claim is also included for a door column with a wall side.