Door Connection Assembly Using Segmented Interface Frame
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Solution Overview
Problem
Existing door connection systems require complex and costly building operations to replace a door, especially when dealing with thin or uneven walls, as they necessitate the removal and reinstallation of the frame, which can damage the wall and is time-consuming.
Innovation Solution
A connection assembly featuring an interface frame with profiled sections from extruded metal profiles that surrounds the door leaf and is fixed to a fixed frame, allowing for easy replacement of the door leaf and mouldings without altering the existing frame or wall, using fixing and adjustment devices that accommodate various wall thicknesses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the frame is directly fixed to the wall using conventional embedding methods, then the door can be securely connected to the wall, but the frame must be removed and reinstalled when replacing the door, causing wall damage and requiring costly building operations
Solution Approach 1:
The system is divided into three independent segments: the fixed frame T embedded in the wall, the interface frame 10 that can be removed and reinstalled, and the door leaf 2. This segmentation allows the interface frame to be detached and reattached without removing the fixed frame from the wall, enabling easy door replacement without wall damage.
Solution Approach 2:
The interface frame 10 acts as an intermediary element between the fixed frame T and the door leaf 2. It provides a removable connection mechanism that mediates the attachment and detachment operations, allowing the door to be replaced without directly interacting with the wall-embedded fixed frame, thus preventing wall damage.
2Reliability
If the frame is directly embedded in thin or uneven walls, then the door can be connected to the wall, but removing the frame causes inevitable demolition of the wall requiring restoration
Solution Approach 1:
The connection system is segmented into a permanent fixed frame T for reliable wall attachment and a removable interface frame 10 for easy door replacement. The fixed frame remains embedded in the wall providing stable connection, while the interface frame handles the replacement operations without requiring wall restoration.
Solution Approach 2:
The fixed frame T is preliminarily embedded in the wall during initial installation to establish a reliable anchor point. This preliminary action creates a stable base that eliminates the need for wall restoration during subsequent door replacements, as the fixed frame remains in place.
3Strength
If conventional door connection systems are used, then the door can be securely attached to the wall, but the process requires significant time and building operations for replacement
Solution Approach 1:
The attachment system is segmented into a permanent fixed frame T for strong wall attachment and a removable interface frame 10 with simplified fastening mechanisms. This allows the door replacement process to involve only detaching and reattaching the interface frame, significantly reducing replacement time while maintaining attachment strength through the fixed frame.
Solution Approach 2:
The interface frame 10 incorporates dynamic fastening elements such as adjustable screws and positioning mechanisms that enable quick attachment and detachment. These dynamic features allow workers to rapidly secure or remove the interface frame without complex building operations, reducing replacement time while ensuring strong attachment when installed.
4Reliability
If a fixed frame structure is used for door connection, then the door can be securely mounted, but the system lacks flexibility for different door sizes and types
Solution Approach 1:
The system separates the fixed frame T (embedded in wall) from the interface frame 10 (attached to door), allowing the interface frame to be customized for different door sizes and types while the fixed frame remains constant. This segmentation provides mounting reliability through the fixed frame and versatility through interchangeable interface frames.
Solution Approach 2:
The fixed frame T serves as a universal anchor point for various door configurations, while the interface frame 10 can be adapted to different door sizes, types, and weights. This multi-functionality allows a single fixed frame structure to support diverse door installations, combining reliability with adaptability.
Data Source
Figure 1~2
Figure 3
Figure 4~1A
AI summary
A leaf (2) and the relative mouldings (24)(25) of a door (1) are coupled to a fixed frame (4) of an existing door by means of an additional frame (10), which, in use, is surrounded by the fixed frame (4), is directly fixed to the fixed frame (4) and is defined by profiled sections (13) having a flattened portion (15), to which the leaf (2) is hinged, and projecting portions (25)(33)(34) defining attachment elements attaching both mouldings (24)(25) to the additional frame (10).