Adjustable Door Hinge Assembly Multi-Directional Alignment
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Solution Overview
Problem
Conventional door hinge assemblies are difficult to install correctly, leading to issues with the second-time installation due to holes left in the door and frame when the leaves are unscrewed, and they lack precise adjustability in different directions.
Innovation Solution
An adjustable door hinge assembly with a pin that pivotably extends through a first knuckle and is fixed to a second knuckle, featuring a sleeve positioned between the top of the second knuckle and a top piece, along with adjustment members that allow for axial distance adjustment by rotating threaded connections, enabling precise adjustments in multiple directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the door hinge assembly is installed and then removed for correction, then installation errors can be corrected, but holes are left in the door and frame making second-time installation difficult
Solution Approach 1:
The hinge assembly incorporates adjustable mechanisms that allow dynamic repositioning of the hinge leaves relative to the pin axis. The adjustment members enable the hinge leaf mounting surfaces to be repositioned in multiple directions (up/down, left/right, inward/outward) while maintaining proper alignment, eliminating the need to remove and reinstall the entire hinge assembly.
Solution Approach 2:
The hinge assembly allows changing of installation parameters such as the position of hinge leaves, axial distance between parts, and angular orientation. By providing adjustable parameters through threaded members and movable components, the hinge can be fine-tuned to achieve precise alignment without damaging the door or frame structure.
2Manufacturing precision
If conventional door hinge assemblies are used, then installation is simple, but precise adjustment in different directions is not possible
Solution Approach 1:
The hinge assembly is divided into separable components including hinge leaves, knuckles, pins, and adjustment members. Each component has specific adjustment functions, allowing independent adjustment of different parameters without affecting the entire assembly. This modular segmentation enables precise multi-directional adjustment while keeping the overall structure manageable.
Solution Approach 2:
Adjustment members serve as intermediary elements between the hinge leaves and the pin connection. These intermediaries provide threaded adjustment mechanisms that enable precise control over the position and orientation of hinge leaves relative to the pin axis, achieving manufacturing precision without excessive overall complexity.
3Adaptability or versatility
If the hinge assembly allows extensive adjustment, then installation flexibility is improved, but the structure becomes more complex
Solution Approach 1:
The hinge assembly integrates multiple adjustment functions into a unified structure. The adjustment members simultaneously control axial distance, lateral position, and angular orientation. This multi-functionality provides extensive adaptability for different installation scenarios while avoiding the complexity of separate adjustment mechanisms for each degree of freedom.
Data Source
AI summary
A door hinge assembly includes a first part with a first knuckle, a second part with a second knuckle, and a pin. The pin pivotably extends through the first knuckle and fixedly extends through the second knuckle. A first adjustment member threadedly connected to the first inner threaded portion in the first knuckle to move the pin and the second part up and down. A sleeve is mounted to the second knuckle and has a slot in which the second leaf is inserted. The first part has an index area which is located corresponding to the lower end of the sleeve to indicate the axial distance that the door hinge assembly is made. A cover unit is connected to the second leaf. A second adjustment member threadedly extends through the second leaf and adjusts the door hinge assembly back and forth.