Loft Stairs Coplanar Infill for Flush Ceiling Integration
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Solution Overview
Problem
Existing loft stairs solutions do not effectively integrate with ceiling surfaces, leaving unsightly gaps and requiring additional finishing elements to cover the space between the stairs frame and the ceiling, which affects aesthetic appeal and installation convenience.
Innovation Solution
A coplanar infill system comprising covering strips made of materials like aluminium, which are integrated with the loft stairs frame, extending to match the ceiling surface and securely attached beneath the plaster layer, ensuring the frame is flush with the ceiling and providing a seamless aesthetic appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the loft stairs frame is embedded deeper in the ceiling than the closing flap, then the stairs can be properly installed with adequate clearance, but unsightly gaps are left between the frame and ceiling surface
Solution Approach 1:
A coplanar infill element is introduced as an intermediary component between the loft stairs frame and the ceiling surface. This infill element fills the gap created by the deeper frame embedding, providing a seamless transition that maintains both installation clearance and aesthetic appearance. The infill element acts as a mediator that resolves the contradiction between functional clearance requirements and visual smoothness.
2Shape
If additional finishing elements are added to cover the gap between frame and ceiling, then aesthetic appearance is improved, but device complexity increases
Solution Approach 1:
The coplanar infill element is merged with the loft stairs frame to form an integral assembly. By combining the frame and infill element into a single integrated component, the solution maintains aesthetic appearance while reducing the number of separate parts. This merging eliminates the need for additional finishing elements, thereby reducing device complexity while preserving the desired visual outcome.
3Length of stationary object
If the frame is embedded deeper in the ceiling, then adequate clearance for installation is provided, but the frame protrudes below the ceiling surface creating gaps
Solution Approach 1:
The coplanar infill element serves as a mediator that compensates for the deeper frame embedding. By introducing this intermediate component, the system achieves adequate installation clearance through deep embedding while simultaneously eliminating the harmful visual effect of gaps. The infill element fills the space between the frame and ceiling surface, resolving the contradiction between embedding depth requirements and gap elimination.
Data Source
Figure 1~2
AI summary
Loft stairs comprising a frame 1 which comprisies a four frame members joined together to form a rectangular frame, at least two folding ladder or scissor segments that move relative to each other, and a closing flap 2, where the frame 1 is located deeper in the ceiling than the closing flap 2, and in the area of that difference in depth of their seating there is an coplanar infill in the form of a covering strip that comes flush with the outer surface of the ceiling 4, the covering strip having an embedding section 3' and an attachment arm 3", and when installed, the attachment arm 3" lies beneath the plasterboard layer and is mounted to the ceiling wall by means of a screw 7, the frame 1 abuts on the inner surface 3.1' of the embedding section 3', and the outer surface 3.2' of the embedding section 3' lies beneath the surface covering the ceiling 4, e.g. under plaster.