Door Window Hinge Height Adjustment Mechanism
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Solution Overview
Problem
Existing door and window hinges lack precise and convenient adjustment mechanisms for sash height, particularly for fixtures with flat profiles, leading to awkward and time-consuming adjustments, especially when trying to adjust hinges with three independent bodies.
Innovation Solution
A hinge design featuring a pin associated with the movable sash, which includes a housing for a screw that adjusts the sash height relative to the fixed frame, allowing direct adjustment on the sash with reduced effort and improved precision, using a grub screw positioned at the upper end of the hinge plate for easier operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an auxiliary adjustment element is added to enable sash height adjustment, then adjustment capability is improved, but device complexity increases
Solution Approach 1:
The adjustment screw is integrated into the existing hinge structure, serving both as a fastening element and an adjustment mechanism. The screw thread engages with the plate to provide height adjustment while maintaining the structural integrity of the hinge, allowing one component to perform multiple functions.
Solution Approach 2:
The adjustment screw is positioned within the hinge body structure, nested among the cylindrical portions and plates. This nesting approach allows the adjustment mechanism to be contained within the existing hinge footprint without requiring additional external components or increasing overall device complexity.
2Adaptability or versatility
If the adjustment screw is positioned at the bottom end of the hinge body, then adjustment capability is provided, but ease of operation deteriorates due to awkward installer access and lack of visual reference
Solution Approach 1:
Instead of positioning the adjustment screw at the bottom end of the hinge body as in prior art, the screw is inverted and positioned at the upper end of the plate. This inversion makes the adjustment mechanism accessible to the installer and provides visual reference during adjustment operations.
Solution Approach 2:
The adjustment screw is positioned in a different spatial location (upper end of the plate rather than bottom end of hinge body), changing the dimensional arrangement to improve installer access and visual reference while maintaining the adjustment function.
3Adaptability or versatility
If the fixing screws of the slide are slackened to enable adjustment, then adjustment capability is improved, but reliability deteriorates as the slide must bear full sash weight in a critical position
Solution Approach 1:
The adjustment screw acts as an intermediary element that provides the adjustment function without requiring the fixing screws to be completely slackened. The screw thread engages with the plate to gradually move the sash to the desired height while the fixing screws remain engaged, maintaining structural support throughout the adjustment process.
4Adaptability or versatility
If adjustment is performed by moving the slide sideways away from the fixed frame, then adjustment capability is provided, but manufacturing precision deteriorates as the movement becomes difficult and time-consuming
Solution Approach 1:
The adjustment mechanism replaces the complex mechanical movement of sliding sideways with a simpler threaded rotation mechanism. The adjustment screw converts rotational motion into linear displacement of the plate, providing precise and controlled adjustment without requiring the installer to manually move the slide sideways.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables quick, precise, and visually clear adjustments of the sash height, reducing installer effort and making the process more practical, applicable to both single and double plate configurations, and feasible for hinges with three independent bodies.
Implementation Method 1
a housing for a screw that adjusts the sash height relative to the fixed frame
Implementation Method 2
a cylindrical portion for housing a shared hinge pin
Data Source
Figure 1
Figure 2
AI summary
Described is a hinge for doors and windows having a fixed frame (1) and a movable sash (2) connected to each other by the hinge (3). The hinge (3) comprises: a first hinge body (4) having a plate (6) for fastening, through screw means (7), to a profile of the fixed frame (1) and a pair of cylindrical sockets (8, 9), which are coaxial and spaced from each other; a second hinge body (5) having a plate (10) for fastening, through screw means (11), to a profile of the movable sash (2) and a single cylindrical socket (12) operatively positioned between the two sockets (8, 9) of the first hinge body (4); a shared hinge pin (13) housed in the three sockets (8, 9, 12) to define an axis of rotation (13Z) of the sash (2), and adjustment means (14) for adjusting the position of the sash (2) along an axis (Z) parallel to the axis of rotation (13Z), and acting on one of the two hinge bodies (4, 5); the adjustment means (14) comprise a pin (15) associated with the profile of the movable sash (2) and having a housing (16) for accommodating a screw means (17) for adjusting the sash (2) along the axis (Z) relative to the fixed frame (1); the screw means (17) is operatively in head contact with one end of the fastening plate (10) of the second hinge body (5) in order to configure a fixed point (P) for abutting and opposing the plate (10) itself so as to lift or lower the sash (2) relative to the hinge bodies (4, 5), in a configuration where the screw means (11) for fastening the plate (10) are loose. [Figure 1]