Angled Screen Device Fastening Mechanism
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Solution Overview
Problem
Existing screen devices with angled glass sections face challenges in providing a robust and aesthetically pleasing solution for fastening screen rollers, as traditional end wall fastening methods are not feasible when screen boxes are arranged at an angle, necessitating an alternative means to securely and invisibly attach rollers.
Innovation Solution
The solution involves using engagement elements on top and rear profiles within the screen boxes, with displaceable fastening pieces that engage behind these elements, employing a wedging principle with adjustable clamping surfaces and a set screw mechanism to ensure secure rotation of the screen rollers without visible fastening means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional end wall fastening methods are used, then screen rollers can be securely fastened, but visible fastening means will be present at the angle connection
Solution Approach 1:
The fastening function is extracted from the end wall location and relocated to the interior of the screen box. The fastening pieces are positioned inside the screen box, engaging with profiles on the interior surfaces, thereby removing visible fastening elements from the exterior angle connection while maintaining secure attachment of the screen rollers.
2Shape
If fastening pieces are placed inside the screen box, then aesthetic appearance is improved, but the fastening mechanism becomes more complex
Solution Approach 1:
The fastening pieces serve multiple functions: they provide mechanical attachment for screen rollers, engage with the profile engagement elements for secure positioning, and remain concealed within the screen box for aesthetic purposes. This multi-functionality reduces the need for separate components for each function.
Solution Approach 2:
The fastening pieces are nested within the screen box structure, with the screen rollers also positioned within the screen box. The fastening mechanism is integrated into the existing screen box and profile system rather than adding external components.
3Reliability
If engagement elements are provided on profiles, then fastening pieces can be securely positioned, but the manufacturing complexity of profiles increases
Solution Approach 1:
The profile is segmented into distinct functional elements: the main profile structure and the separate engagement elements. The engagement elements are provided as discrete features on the profiles, which can be manufactured as integral parts or attached separately, allowing for modular manufacturing approaches.
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
This approach allows for robust and secure fastening of screen rollers at an angle, maintaining an aesthetic appearance by hiding the fastening mechanism within the screen boxes, capable of withstanding alternating loads and wind pressures while enabling easy assembly and adjustment.
Implementation Method 1
employing a wedging principle with adjustable clamping surfaces and a set screw mechanism to ensure secure rotation of the screen rollers
Data Source
Figure 1
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AI summary
This invention relates to a screen device (1) comprising two screen rollers (2, 4), which, with the aid of two fastening pieces (14, 17), are rotatably arranged in respective screen boxes (3, 5) arranged at an angle (α) relative to each other, wherein the fastening pieces (14, 17) are displaceable relative to each other between a first position, in which they are loose from the screen boxes (3, 5), and a second position, in which, with the aid of engagement elements (15, 16, 18, 19), they engage behind engagement elements (10, 11, 12, 13) of the top profiles (6, 7) and rear profiles (8, 9) of the screen boxes (3, 5).