Screening Arrangement Mitred Joint Mounting
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Solution Overview
Problem
Existing screening arrangements face challenges in achieving an inconspicuous and smooth transition between the top element and side rails, particularly in designs with complex top elements, and struggle with correct abutment of mitre joints due to manufacturing tolerances and material variances, leading to aesthetic and cleaning issues.
Innovation Solution
The introduction of a top rail with mitred ends and angular brackets with parallel legs and tracks on the back sides of the top rail and side rails facilitates easy and precise joining of mitred ends, ensuring an inconspicuous mitre joint and improved retention, while resilient adjustment portions and chamfered ends enhance mounting and retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If mitred joints are used to join top element and side rails, then aesthetic appearance and cleaning accessibility are improved, but manufacturing precision and correct abutment are worsened due to tolerances and material variances
Solution Approach 1:
A filler piece is introduced as an intermediary element between the top element and side rails at the mitred joints. This filler piece compensates for gaps and misalignments caused by manufacturing tolerances and material variances, ensuring proper abutment and maintaining the aesthetic appearance of the mitred joint while allowing for practical assembly variations
Solution Approach 2:
The design allows for adjustment of the filler piece parameters (size, shape, material properties) to compensate for variations in the mitred joint assembly. By changing these parameters, the system can accommodate different tolerance ranges and material behaviors while maintaining the desired aesthetic and functional outcomes
2Adaptability or versatility
If complex top element design is used to meet functional requirements, then functional performance is improved, but ease of manufacture and joining is worsened
Solution Approach 1:
The top element is segmented into modular components that can be manufactured separately and assembled using standardized mitred joints and filler pieces. This segmentation allows each component to be optimized for its specific function while simplifying the overall manufacturing and joining process through repetition of standard connection details
Solution Approach 2:
The mitred joint connection system with filler pieces is designed as a universal solution that can be applied to various top element configurations and functional requirements. The same joining methodology works for different geometries and functional needs, reducing manufacturing complexity despite the diversity of applications
Data Source
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AI summary
A screening arrangement (1) has a top element (4) including a cover and two side rails (8, 9). The top element (4) is provided with a top rail (440) forming the front side of the top element and being connected to the cover of the top element (4). Side rails (8, 9) are adapted to be joined to the mitred ends of the top rail (440) by means a set of angular brackets cooperating with reception means in the back side of the top rail (440) and in the back side of the respective side rail (8, 9).