Top-Hung Casement Window Hinge Assembly Stabilization
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Solution Overview
Problem
Top-hung casement windows in prior art designs are prone to instability and noise due to the casement sash shaking when hung, and components are abraded due to friction with the window frame, leading to a shortened product lifespan.
Innovation Solution
A top-hung casement window design featuring a hinge assembly with a connecting piece, swing part, and vertical limiting part that stabilizes the casement sash by limiting its motion and transferring the weight of the sash to the window frame, preventing contact with the frame and thus reducing friction and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the five-link sliding support slightly swings up and down to enable turning, then the casement sash can be hung, but the casement sash becomes unstable and shakes easily
Solution Approach 1:
The patent introduces a connecting piece as an intermediary component between the five-link sliding support and the casement sash. This connecting piece includes a limiting part that restricts the swinging range of the sliding support, thereby mediating between the need for turning motion and the requirement for hanging stability. The limiting part acts as a mechanical intermediary that allows controlled movement while preventing excessive swinging.
2Weight of moving object
If the casement sash is heavy to bear the weight, then the sash can support itself, but it presses the five-link sliding support and generates friction and noise
Solution Approach 1:
The connecting piece serves as a mediator between the heavy casement sash and the five-link sliding support. By introducing this intermediate structure with a limiting part, the patent distributes and controls the force transmission, reducing direct friction and contact pressure between the sliding support and the sash, thereby minimizing noise and wear.
Solution Approach 2:
The patent adds a dimensional constraint by introducing the limiting part that restricts motion in the vertical swinging dimension. This dimensional control prevents the sliding support from pressing against the sash in unwanted directions, reducing friction and noise generation while still allowing necessary movement for turning operation.
3Ease of operation
If the components contact the five-link sliding support to enable turning, then the sash can swing, but the components are abraded and life span is shortened
Solution Approach 1:
The connecting piece with its limiting part acts as a protective intermediary that reduces direct abrasive contact between the five-link sliding support and other components. By controlling and limiting the contact areas and motion ranges, the patent minimizes wear and abrasion on critical components, thereby extending the operational lifespan while maintaining swinging 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
The design ensures the casement sash remains stable and reduces noise and component wear by maintaining a consistent position and transferring the weight of the sash to the window frame, enhancing the longevity and functionality of the window.
Implementation Method 1
transferring the weight of the sash to the window frame
Data Source
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AI summary
The present invention is applicable to the field of door and window technologies, and provides a top-hung casement window, including a window frame, a casement sash, and a hinge assembly. The hinge assembly includes a first hinge, a second hinge, a pivot, a connecting piece, a swing part, and a vertical limiting part. The first hinge, the second hinge, and the pivot implement opening of the casement sash; the connecting piece, the swing part, and the vertical limiting part implement hanging and turning of the casement sash. During the turning of the casement sash, the swing part is clamped between the connecting piece and the vertical limiting part, and the swing part swings only around the vertical limiting part, with a limited motion space. Therefore, the swing part and the casement sash fixedly connected to the swing part do not shake easily. When the casement sash is open, the position of the vertical limiting part does not change, and nor does the position of the casement sash in the vertical direction change. Because all force of gravity of the casement sash is transferred to the window frame through the vertical limiting part, the bottom of the casement sash does not rub the window frame, thereby avoiding generation of noise and abrasion of components of the hung window caused by hanging down of the casement sash.