Scaffolding Railing Fastening Element with Undercut Pin
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional scaffolding railings lack ease of assembly, secure attachment, and adequate safety features, leading to potential occupational hazards during construction.
Innovation Solution
A fastening element with a retaining pin and stop surface for detachable attachment to scaffolding elements, featuring an undercut design for secure engagement and a locking mechanism for precise positioning without additional tools, ensuring easy assembly and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional flange connections are used for attaching railings to scaffolding, then the railing can be attached to the scaffolding, but the attachment process becomes cumbersome and time-consuming due to complex assembly procedures and additional positioning tools
Solution Approach 1:
The fastening element is divided into functionally independent components: a fastening pin for insertion into the scaffolding element, a retaining pin for securing the railing, and a stop surface for positioning. This segmentation allows each component to perform its specific function efficiently, simplifying the overall assembly process while maintaining security.
Solution Approach 2:
The fastening element is pre-configured with the fastening pin, retaining pin, and stop surface in fixed spatial relationships. This preliminary arrangement eliminates the need for additional positioning tools and complex assembly procedures during installation, as the component is ready for immediate attachment to the scaffolding.
2Manufacturing precision
If conventional flange connections are used for railing attachment, then the railing can be secured, but the attachment process requires additional positioning tools and time for precise measurement and alignment
Solution Approach 1:
The stop surface is pre-positioned on the fastening element at a predetermined location, establishing the correct positioning relationship before attachment. This eliminates the need for additional positioning tools and measurement procedures during installation, achieving precise alignment quickly and efficiently.
3Device complexity
If a simple pin connection is used for fastening the railing, then the assembly is simple, but the connection lacks security and may detach accidentally
Solution Approach 1:
The connection system is segmented into a fastening pin for structural attachment to the scaffolding and a retaining pin for securing the railing, with the retaining pin featuring an undercut geometry. This segmentation provides both simplicity in overall structure and enhanced security through the specific geometric features of each component.
Solution Approach 2:
The retaining pin employs an asymmetric undercut geometry where the cross-sectional dimensions vary along the length of the pin. This asymmetric design creates a mechanically locked connection that prevents accidental detachment while maintaining structural simplicity, as the varying cross-section provides both insertion ease and retention security.
4Ease of operation
If conventional flange connections are used, then the railing can be attached, but the overall weight of the attachment system increases due to the cumbersome nature of the flanges
Solution Approach 1:
The fastening element is segmented into minimal essential components (fastening pin, retaining pin, stop surface) rather than using a bulky flange structure. This segmentation achieves ease of assembly through simple insertion and retention mechanisms while significantly reducing the overall weight of the attachment system.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a fastening element (1) for railings (20) for detachable attachment to a scaffolding element. The fastening element (1) comprises a stop surface (10), a retaining pin (11), and a fastening pin (12). The fastening pin (12) has an undercut (121) in the area of the stop surface (10) for engaging an opening (31) in the scaffolding element.