Flat Profile Railing Mounting with Grub Screws
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Solution Overview
Problem
Conventional railing mounting systems are complex and lack stability due to the use of mounting flanges, which can be cumbersome and insecure, especially when attaching railings to uneven building surfaces.
Innovation Solution
A plug-in system with a flat, trapezoidal profile featuring a corrugated fastening surface and grub screws for secure attachment, allowing for force-fitting connection to the building structure, and additional attachment means like screws for mounting railing bars and balusters, with connecting plates for forming longer units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mounting flanges are used to attach railings to building surfaces, then the railing can be secured to the structure, but the mounting becomes complex and the flanges appear obtrusive
Solution Approach 1:
The patent removes the traditional mounting flange from the baluster design and extracts its fastening function into a separate flat profile component. The baluster receives the flat profile in a recess, and the flat profile carries the grub screw mounting, thereby separating the structural support function from the fastening function and eliminating the need for obtrusive flanges on the balusters themselves.
Solution Approach 2:
The flat profile acts as an intermediary component between the baluster and the building structure. It receives the baluster in a recess and provides the mounting interface with grub screws, serving as a mediator that simplifies both the baluster design and the mounting process while ensuring secure attachment to uneven surfaces.
2Reliability
If conventional mounting methods are used on uneven building surfaces, then attachment is attempted, but stability and security are insufficient
Solution Approach 1:
The fastening surface of the flat profile features corrugations (ridges and grooves) that provide mechanical interlocking with uneven building surfaces. The corrugated geometry allows the grub screw to bite into the surface irregularities, creating a force-fitting connection that adapts to surface variations and ensures stable attachment regardless of surface uniformity.
3Reliability
If mounting flanges are used for railing attachment, then fastening is achieved, but the design becomes obtrusive and aesthetically problematic
Solution Approach 1:
The mounting function is extracted from the visible baluster component and placed in the flat profile, which can be positioned in less visible locations. The baluster itself remains clean and uncluttered without protruding flanges, improving the aesthetic appearance while the flat profile handles the functional mounting task.
4Strength
If complex bracket geometries are used to ensure secure fastening, then connection strength is improved, but device complexity increases
Solution Approach 1:
The patent changes the mounting parameters from complex bracket geometries to a simple flat profile with corrugated fastening surface and grub screws. The connection strength is achieved not through geometric complexity but through the mechanical interlocking provided by the corrugations and the clamping force of the grub screws, simplifying the overall device geometry.
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 system provides a stable and secure attachment of railings to building surfaces, simplifying the installation process while accommodating various railing types and surface irregularities, ensuring a robust and efficient assembly.
Implementation Method 1
the ridges of the ribbed surface are pressed towards the surface of the building structure, allowing it to be securely connected to it. Due to the ridges on the fastening surface of the flat profile and the unevenness of the surface of the building structure, the connection between the flat profile and the building structure is held in place by the grub screw in a force-fitting manner.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A plug-in system with a flat profile (100) is proposed for attaching railings, comprising railing bars (30) connected to handrails (32), on a mounting surface 26 of a building body (24), wherein the flat profile (100) has a fastening surface (10) on which grooves (12) are formed and both the flat profiles (100) and the handrails (32) can be connected to each other.