Door Hinge with Segment-Circle Adjustment Screw
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Solution Overview
Problem
Existing door and window hinges require significant space for adjustment mechanisms, leading to a bulky appearance and increased manufacturing costs due to complex components, while also limiting adjustment flexibility without loosening fastening points.
Innovation Solution
A hinge design featuring an adjusting screw with a segment-of-a-circle cross-section that engages with a complementary internal thread in the hinge bolt bushing, allowing for parallel displacement of the hinge bolt within the hinge head, combined with a connecting link and clamping screw for secure adjustment and reduced component complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional adjustment device with a guide element is used, then the hinge bolt can be adjusted parallel to itself, but the space required in the hinge head increases significantly making it voluminous
Solution Approach 1:
The adjusting screw is integrated directly into the hinge head structure, merging the adjustment mechanism with the hinge body. The adjusting screw extends through the hinge head and engages with the hinge bolt, eliminating the need for a separate guide element and reducing the overall volume of the hinge head while maintaining full adjustment functionality.
Solution Approach 2:
The adjusting screw serves multiple functions simultaneously: it acts as both the adjustment mechanism and the guiding element. By making the adjusting screw universal, the design eliminates redundant components and reduces the space required in the hinge head.
2Ease of operation
If a traditional adjustment device with a guide element is used, then the hinge bolt can be adjusted parallel to itself, but the manufacturing cost increases due to the large number of components and machining required
Solution Approach 1:
The adjusting screw is integrated directly into the hinge head structure, merging the adjustment mechanism with the hinge body. The adjusting screw extends through the hinge head and engages with the hinge bolt, eliminating the need for a separate guide element and reducing the overall volume of the hinge head while maintaining full adjustment functionality.
Solution Approach 2:
The complex guide element is extracted and replaced with a simple adjusting screw that has a triangular cross-section. This extraction of the unnecessary guide element simplifies the component structure and reduces manufacturing complexity.
3Ease of operation
If the hinge head is made voluminous to accommodate the adjustment device, then adjustment functionality is maintained, but the visual impression and aesthetic appeal are negatively affected
Solution Approach 1:
The adjusting screw is integrated directly into the hinge head structure, merging the adjustment mechanism with the hinge body. The adjusting screw extends through the hinge head and engages with the hinge bolt, eliminating the need for a separate guide element and reducing the overall volume of the hinge head while maintaining full adjustment functionality.
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
Enables compact adjustment of the hinge bolt relative to fastening points within the hinge head, reducing space requirements and manufacturing costs, while providing enhanced security and aesthetic appeal through a more streamlined design.
Implementation Method 1
an adjusting screw (8, 9, 208, 308), which runs parallel to the hinge axis and is fixed in the direction of the hinge axis, having an external thread and a hinge bolt bushing (12, 112, 312) accommodating the hinge bolt (7, 107, 307) and having a complementary internal thread
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
In the case of a hinge for doors, windows or the like, with an adjustment device (6) which is provided in at least one of the recesses, can be used to shift the hinge pin (7) parallel to itself and comprises an adjustment screw (8) which runs parallel to the hinge axis (S), is fixed in the direction of the hinge axis (S) and has an external thread, and a hinge pin bushing (12) which receives the hinge pin (7), the adjustment screw (8) is mounted in a receptacle (16), which is provided in the at least one recess (5), is in the shape of a segment of a circle in cross section and is oriented parallel to the hinge axis (S), and is in engagement by means of its outer thread with a complementary inner thread (13), which is provided in the hinge pin bushing (12) and is in the form of a segment of a circle in cross section, and means are provided for guiding the hinge pin bushing (12) in the recess (5), said means causing the hinge pin bushing (12), during a shifting in the direction of the hinge axis (S) by means of the adjustment screw (8), to undertake a movement about the adjustment screw (8).