Sectional Door Leaf Sealing Mechanism for Wind Load Resistance
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Solution Overview
Problem
Large opening widths of sectional doors increase weight and require sufficient rigidity to resist wind loads, but integrating revolving doors reduces resistance forces, leading to compromised lower seals and potential water infiltration.
Innovation Solution
A door leaf with a continuous section end element featuring a floor sealing strip and a narrow, strip-shaped projection on the underside, combined with an elastically deformable floor sealing strand that contacts the floor first and has multiple fastening points for secure sealing, enhancing stability and sealing efficacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the opening width of the door leaf is increased, then the sealing performance is improved, but the weight of the door leaf increases and rigidity decreases
Solution Approach 1:
The door leaf is divided into multiple individual section elements that are hingedly connected, allowing the large opening to be segmented into manageable sections that can be supported independently, reducing the weight burden on any single element while maintaining overall sealing performance
Solution Approach 2:
Lateral guide rails are introduced to provide support in a horizontal dimension, distributing the load and improving rigidity without increasing the weight of the door leaf sections themselves
2Ease of operation
If a revolving door is integrated into the door leaf, then the accessibility and usability are improved, but the resistance forces and structural stability deteriorate
Solution Approach 1:
The door leaf is segmented into multiple independent section elements, allowing the revolving door to be integrated into one section without compromising the structural integrity of the entire door assembly, as other sections can independently resist wind loads
Solution Approach 2:
The revolving door mechanism is merged with the sectional door leaf structure, where the individual section elements provide the necessary structural support while accommodating the rotating component, maintaining both usability and resistance forces
3Stability of the object's composition
If the door leaf structure is made more rigid to resist wind loads, then the structural stability is improved, but the sealing contact with the floor deteriorates
Solution Approach 1:
The bottom section element is designed with dynamic characteristics, allowing it to flex and adapt its position to maintain contact with the floor while the upper sections remain rigid to resist wind loads, achieving both structural stability and reliable sealing contact
Solution Approach 2:
Different parts of the door leaf have different structural properties - the upper sections are rigid for wind resistance while the bottom section has flexible characteristics to ensure floor contact, applying local quality differentiation to solve the contradiction
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 provides improved durability and sealing against water penetration while maintaining structural stability and resisting wind loads, ensuring a secure and cost-effective sealing mechanism.
Implementation Method 1
an elastically deformable floor sealing strand that contacts the floor first
Data Source
Figure 1
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AI summary
The invention relates to a relocatable gate, the gate leaf of which consists of individual hinged section elements connected to one another and guided in lateral guides, the bottom section element of which is provided with a continuous, closing section end element (1, 24) equipped with a bottom sealing strip (2), wherein the section end element (1) has a one-sided projection (3) on its underside in its longitudinal extension, wherein a recessed area (4) is formed in the width of the section end element (1) following the projection (3), in which two spaced-apart connection channels (15) are provided in the area (4) on an approximately horizontal plane, into which connection points (7) of the one-piece bottom sealing strip (2) engage, wherein the connection points (7) of the bottom sealing strip (2) are connected by a common, foldable section (12).which has a sealing foot (11) directed towards the contact surface (22) approximately in the middle, wherein bending areas (10) are formed laterally of the sealing foot (11), and that branches (9) with lateral side lips (6) directed towards the contact surface (22) are formed between the bending areas (10) and the connection points (7), as well as a section termination element (1) of the aforementioned design.