Concealed Door Hinge With V-Shaped Arm And Lateral Adjustment
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Solution Overview
Problem
Conventional door hinges for hollow profile frames are structurally complex and require multiple components, making them less suitable for concealed arrangements and adjustments.
Innovation Solution
A concealed door hinge with a V-shaped articulated arm design that allows for a maximum opening angle of 120°, featuring adjustable bearing inserts and a screw-based lateral adjustment mechanism to correct gaps between the door frame and leaf, with a self-locking end position and optional cover plates for security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional multi-part door hinge design is used, then the hinge can provide stable door operation, but the structural complexity increases and concealed arrangement becomes difficult
Solution Approach 1:
The patent combines multiple hinge components into a single integrated hinge unit that includes the hinge arm, bearing inserts, and adjustment mechanism. This merging reduces the number of separate parts while maintaining stable door operation, enabling concealed arrangement between the door leaf and frame without the complexity of multiple articulated elements.
Solution Approach 2:
The hinge design integrates multiple functions into a single device: it provides the primary hinge function for door operation, includes built-in adjustment capability for lateral positioning, and enables concealed installation. The bearing inserts serve both as rotation supports and as adjustment elements, reducing the need for separate components.
2Ease of manufacture
If a fixed hinge design is used, then the manufacturing is simpler, but the ability to adjust lateral positioning of the door leaf is lost
Solution Approach 1:
The hinge incorporates adjustable bearing inserts that can be laterally positioned within the hinge body through threaded adjustment mechanisms. This dynamic adjustment capability allows the hinge to adapt to different installation requirements and correct lateral misalignment, while the base structure remains relatively simple for manufacturing.
Solution Approach 2:
The hinge design allows changing the lateral position parameter of the door leaf by adjusting the bearing inserts. The threaded adjustment mechanism enables precise control of the bearing insert position, providing adaptability for lateral positioning while maintaining a straightforward manufacturing process for the overall hinge structure.
3Device complexity
If the hinge axis is positioned far from the mirror surface, then the hinge structure is simpler, but collision occurs between overlapping profile sections during door pivoting
Solution Approach 1:
The hinge design positions the rotation axis in a specific location within the hollow profile that optimizes the clearance between overlapping door and frame profiles. By carefully selecting the axial position and using bearing inserts that extend to the mirror surface, the design eliminates profile collision during door pivoting while maintaining a relatively simple overall structure.
4Shape
If a concealed hinge arrangement is used, then the aesthetic appearance is improved, but the adjustment accessibility is reduced
Solution Approach 1:
The adjustment mechanism is designed to be accessible through the same opening used for hinge installation. The bearing inserts can be adjusted laterally through this opening without requiring additional access points, maintaining the concealed aesthetic appearance while providing adjustment capability.
Data Source
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AI summary
The hinge has a tape recording element (6) comprising a receiving space, and an articulated arm (10) including two V-shaped legs (11, 11') aligned with each other. One of the legs is swivel-movably connected with bearing inserts (9), and the other leg comprises a connection end (12) that is fastened at a narrow side of a door wing (2). The tape recording element (6) comprises an adjusting bolt for laterally adjusting the wing. The adjusting bolt is engaged in a threaded hole of the recording element and comprises a screw head, which is positively connected with the insert of a joint part (7).