Hinge-Side Door Seal Protrusion for Gap Sealing
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Solution Overview
Problem
Automatic seals for swing doors and pivot doors with a single axis of rotation between the door leaf and frame fail to seal the gap between the door leaf, floor, and frame effectively due to the sealing profile's inability to lie against the hinge-side frame when a gap is present.
Innovation Solution
The automatic seal's housing, trigger, and sealing profile protrude beyond the door leaf on the hinge side into the gap between the door leaf and frame, with a stop on the frame that the trigger rests against, allowing the sealing element to be attached directly or indirectly to the sealing profile or retaining strip, enabling the sealing element to move synchronously with the sealing profile and seal the gap between the door leaf, floor, and frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sealing profile is enclosed within the housing on the door leaf, then the seal structure is compact and clean, but the sealing profile cannot reach the frame on the hinge side when a gap exists between door leaf and frame
Solution Approach 1:
The housing is divided into two functional parts: a main housing body that remains attached to the door leaf, and a separate sealing profile that can extend independently into the gap between door leaf and frame. This segmentation allows the sealing profile to reach the frame while the main housing remains compact.
Solution Approach 2:
The sealing profile extends in the lateral dimension (perpendicular to the door leaf surface) beyond the housing boundaries, allowing it to reach the frame in the gap space without requiring the main housing to be larger or more complex.
2Ease of manufacture
If the housing width corresponds to the door leaf width, then the seal is simple to manufacture and install, but the sealing profile cannot rest against the frame when a gap exists between door leaf and frame
Solution Approach 1:
The sealing function is extracted from the main housing body and assigned to a separate sealing profile component. This sealing profile is specifically designed to extend into the gap and contact the frame, while the housing maintains its simple door-leaf-width dimensions for easy manufacturing.
Solution Approach 2:
The sealing profile acts as an intermediary element between the housing and the frame, bridging the gap that exists between the door leaf and frame. It transfers the sealing contact function without requiring the housing itself to extend into the gap.
3Reliability
If automatic seals are used to seal the gap between door leaf and floor, then sealing effectiveness is improved, but the seals fail to seal the gap between door leaf, floor, and frame when a gap exists on the hinge side
Solution Approach 1:
The sealing profile is designed to be dynamically extendable beyond the housing boundaries. It can actively reach into the gap between door leaf and frame when needed, adapting to the presence of the gap while maintaining effective sealing contact with the frame.
Solution Approach 2:
The sealing system applies different structural qualities to different parts: the main housing maintains a compact, fixed structure attached to the door leaf, while the sealing profile has an extended, flexible structure that can reach into the gap and contact the frame locally where needed.
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 configuration allows for effective sealing of the space between the door leaf, floor, and frame, even when a gap exists between the door leaf and frame, ensuring proper sealing and draft prevention.
Implementation Method 1
the sealing element (11) is attached directly or indirectly to and/or rests against the sealing profile (102)... enabling the sealing element to move synchronously with the sealing profile
Implementation Method 2
This force is applied via a trigger mechanism that protrudes beyond the door leaf on the hinge side. This trigger is slidably mounted and strikes the jamb of the frame when the door closes. This action transmits the force necessary to move the sealing profile into the mechanism.
Implementation Method 3
When the door is opened, if the trigger is released from the jamb board of the frame, the sealing strip is lifted by means of the force of springs that were tensioned during the lowering movement.
Data Source
Figure 1
Figure 1a~1b
Figure 1c~2
AI summary
The invention relates to an arrangement with a door (T) in which a space is provided between a door leaf (2) and a frame (1) in which a single axis of rotation of the door leaf (2) runs, and with an automatic seal (10) comprising a housing (101), a movable sealing profile (102), a mechanism for moving the sealing profile (102) relative to the housing (101), and a trigger (103) for actuating the mechanism, which, in the unactivated state of the seal, projects beyond the housing (101) on a hinge side, wherein the housing (101), the trigger (103) and the sealing profile (102) of the automatic seal (101) project beyond the door leaf (2) on the hinge side and into the space between the door leaf (2) and the frame (1).