Concealed Door Hinge With Independent Vertical And Horizontal Adjustment
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Solution Overview
Problem
Concealed door hinges face challenges in achieving precise adjustments due to the risk of unintended vertical movement or slipping when adjusting in the horizontal direction, making exact alignment difficult.
Innovation Solution
A concealed door hinge design featuring separate adjusting devices for vertical and horizontal adjustments, using clamping screws that allow independent alignment in respective directions, preventing unwanted movements by keeping screws tightened in one direction while loosening for adjustments in another.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If clamping screws are loosened to adjust the door hinge in horizontal direction, then horizontal adjustment is possible, but vertical slipping or unintended adjustment occurs
Solution Approach 1:
The adjusting device is segmented into direction-specific components: first adjusting device for horizontal adjustment and second adjusting device for vertical adjustment. Each device has dedicated clamping screws that can be independently loosened and tightened, allowing adjustment in one direction without affecting the other direction's stability.
Solution Approach 2:
The clamping screws are designed to be dynamically adjustable - loosened for adjustment and tightened for fixation. The first clamping screw controls horizontal movement while the second clamping screw controls vertical movement, enabling dynamic control over adjustment freedom and stability in different directions.
2Manufacturing precision
If separate adjusting devices are provided for horizontal and vertical directions, then precise adjustment is achieved, but device complexity increases
Solution Approach 1:
Both adjusting devices share common components including the intermediate piece, fastening plate, and adjustment slot. The first and second clamping screws work on the same structural framework, merging functions while maintaining separate adjustment capabilities, thus reducing overall complexity compared to completely independent adjustment mechanisms.
Solution Approach 2:
The intermediate piece serves multiple functions: it provides the adjustment slot for both horizontal and vertical adjustments, holds both clamping screws, and connects to the door leaf and door frame. This multi-functionality reduces the number of separate components needed, simplifying the overall structure while enabling precise bidirectional adjustment.
Data Source
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AI summary
A concealed hinge for pivotally mounting a door leaf on a door frame has two hinge bodies (2, 3), a joint (4) by which the two hinge bodies (2, 3) are connected to each other, wherein one of the hinge bodies (2, 3) can be inserted into the narrow side of the door leaf and the other hinge body (3, 3) into the door frame, front mounting plates (5, 6) and rear mounting plates (7, 8) which can be mounted on respective projections (21, 31) at longitudinally spaced ends of the hinge bodies (2, 3) and with which the hinge bodies (2, 3) can be attached to the door leaf and the door frame, wherein a first adjustment device (9) is arranged on one of the hinge bodies (2, 3) between the front mounting plates (5, 6) and the respective projection (21, 31), with which the hinge body (2, 3) can be adjusted in a vertical direction (z) and a horizontal direction (y) in a direction through the front surface of the front mounting plates (21,31) is adjustable separately from each other in the spanned plane.