Adjustable Door Jamb Structure With Micrometric Alignment
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Solution Overview
Problem
Existing door jamb structures require precise positioning and adjustment to ensure proper closure and sealing, which is challenging due to lack of adjustability, leading to issues with perpendicularity, horizontality, and flatness, especially in glass doors, and often necessitates disassembly for adjustment.
Innovation Solution
The solution involves a jamb structure with a U-shaped outer casing and a T-shaped intermediate casing, utilizing opposing screws for micrometric adjustment, allowing for precise alignment and adjustment after the door is mounted, using tubular and round sealing gaskets for coplanar and vertical adjustments, and incorporating screws for traction and compression to lock the jambs in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional fixed jamb structures are used, then manufacturing and installation are simpler, but adjustment precision and door closure quality deteriorate
Solution Approach 1:
The jamb structure is divided into separate components: an outer casing fixed to the wall and an intermediate casing that can be adjusted relative to it. The intermediate casing is further segmented into adjustable jamb leaves that can be independently positioned. This segmentation enables precise adjustment of each component while maintaining overall structural integrity, resolving the contradiction between positioning precision and structural complexity.
Solution Approach 2:
The jamb structure incorporates dynamic adjustment mechanisms including threaded rods, nuts, and sliding elements that allow the intermediate casing and jamb leaves to be positioned precisely and then locked in place. These dynamic elements enable micrometric adjustments after installation without requiring disassembly, achieving high positioning precision while keeping the adjustment mechanism relatively simple.
2Reliability
If precise positioning is required for door closure, then door sealing improves, but adjustment difficulty increases due to lack of adjustability
Solution Approach 1:
The jamb structure is designed with pre-integrated adjustment mechanisms during manufacturing, including threaded rods, nuts, and sliding elements built into the intermediate casing. This preliminary incorporation of adjustment capabilities allows for easy field adjustment without requiring disassembly or complex tools, thereby improving both door closure reliability and adjustment ease simultaneously.
Solution Approach 2:
The adjustment mechanisms are designed to be self-contained within the jamb structure, allowing installers and users to make adjustments using simple hand tools without requiring specialized equipment or disassembly. The self-adjusting nature of the system enables anyone to achieve proper door alignment, improving ease of operation while ensuring reliable door closure.
3Adaptability or versatility
If adjustment is made after door mounting, then functionality improves, but structural stability may deteriorate
Solution Approach 1:
The jamb is segmented into the outer casing (fixed to wall) and intermediate casing (adjustable), with the door mounted on the intermediate casing. This segmentation allows the intermediate casing to be adjusted relative to the fixed outer casing without affecting the overall structural stability provided by the wall-mounted outer casing and the rigid intermediate casing framework.
Solution Approach 2:
The intermediate casing incorporates dynamic adjustment elements (threaded rods, nuts, sliding mechanisms) that allow for post-installation positioning adjustments. Once adjusted to the desired position, these elements can be locked to maintain structural stability. This dynamic capability enables adaptability without compromising the stability of the overall jamb structure.
Data Source
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AI summary
Jamb structure for doors of the type involving an outer casing, an inner casing and a rabbet profile for the rabbet of the door, characterised in that it has the following characteristics: - said outer casing consists of a metal profile with a U-shaped section (1) with the flanges of the "U" shape directed towards the door side, - said inner casing consists of a metal profile with a T-shaped section (2) with the stem of the "T" directed towards the exterior, namely towards said outer casing (1) to be engaged with it and involving from above the head of the "T" a female joint central recess for a rabbet profile (3) ; - said rabbet profile (3) intended to be engaged with a male joint by means of a flexible joint within said central recess of said inner casing (2).