Telescopic Insect Screen Frame Kit for Compact Assembly
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Solution Overview
Problem
Existing insect screen frame kits have issues with user assembly complexity and large packaging volume due to numerous parts and right-angled pre-assembled profile strip pairs, leading to instability and aesthetic concerns.
Innovation Solution
A kit comprising pre-assembled frame assemblies with parallel profile strips and corner connectors that can pivot or telescope, allowing for easy assembly and compact packaging, featuring force-fit and form-fit connections to secure the frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If corner connectors are secured to profile strips by frictional connection only, then assembly is simple, but frame stability is low
Solution Approach 1:
The patent combines frictional connection and positive fit connection in a single corner connector design. The corner connector has an insertion section that provides frictional connection for easy assembly, and a protruding section that engages with a recess in the profile strip to provide positive fit connection for enhanced stability. This merging of two connection mechanisms resolves the contradiction between assembly simplicity and frame stability.
2Stability of the object's composition
If pre-assembled profile strip pairs are supplied with corner connectors, then frame stability is improved, but packaging volume increases
Solution Approach 1:
The patent applies nesting by placing the corner connector inside the profile strip during packaging. The corner connector is inserted into the profile strip and positioned within its length, allowing both components to occupy the same spatial envelope. This nested arrangement enables pre-assembled profile strip pairs with corner connectors to be packaged in a compact manner, reducing packaging volume while maintaining frame stability through pre-assembly.
3Ease of manufacture
If corner connectors have visible corner sections after assembly, then manufacturing is simple, but aesthetic appeal is reduced
Solution Approach 1:
The patent extracts the visible corner section from the final assembled appearance by designing the corner connector so that its corner section is positioned inside the profile strip rather than protruding outward. The corner connector is inserted into the profile strip such that the corner section is hidden within the profile strip's interior space. This extraction of the visible portion resolves the contradiction by maintaining manufacturing simplicity while significantly improving aesthetic appearance.
Data Source
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AI summary
The present invention relates to a kit (1a, 1b, 1c) for a frame (2a, 2b, 2c), in particular for a frame of an insect screen device, with at least two frame assemblies (3.1, 3.2, 3.3, 3.4), wherein each frame assembly (3.1, 3.2, 3.3, 3.4) comprises at least two profile strips (4.1, 4.2, 4.3, 4.4) and at least one corner connector part (5.1, 5.2, 5.3, 5.4) arranged on each profile strip (4.1, 4.2), wherein the profile strips (4.1, 4.2, 4.3, 4.4) and the corner connector parts (5.1, 5.2, 5.3, 5.4) of the frame assemblies (3.1, 3.2, 3.3, 3.4) are designed such that that - the profile strips (4.1, 4.2, 4.3, 4.4) of all frame assemblies (3.1, 3.2, 3.3, 3.4) are arranged parallel to each other in a starting position or can be arranged parallel to each other and - the frame assemblies (3.1, 3.2, 3.3, 3.4) can be plugged together to form a rectangular frame (2a, 2b, 2c) in which two profile strips (4.1, 4.2, 4.3, 4.4) are arranged telescopically inside each other.