Leading Scaffold Guardrail Frame for Non-Sequential Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing guardrail systems for scaffolding require complex and sequential assembly/disassembly processes, are prone to damage, and do not provide secure side protection during construction, lacking robustness and ease of use.
Innovation Solution
A guardrail device with connection devices that engage vertically and horizontally with scaffolding components, allowing for secure, non-sequential assembly/disassembly and forming a rigid frame for enhanced stability, featuring rotatable and sliding projection units for easy installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional guardrail systems with scissor-like claws and active opening/closing mechanisms are used, then connection reliability is improved, but assembly complexity and operational difficulty increase
Solution Approach 1:
The invention extracts the complex active opening/closing mechanism from the connection system and replaces it with passive form-fitting engagement. The connection devices simply engage with the vertical post through their geometric shape without requiring active manipulation, thereby maintaining reliability while dramatically simplifying operation.
Solution Approach 2:
The connection devices are designed to automatically engage and lock into place through their form-fitting geometry with the vertical post. The system serves itself by using the inherent shape complementarity between the connection device and post to create a secure connection without requiring external actuation or complex mechanisms.
2Stability of the object's composition
If sequential assembly processes are used for traditional guardrail systems, then connection stability is improved, but assembly time and productivity decrease
Solution Approach 1:
The guardrail system is divided into independent modular components (guardrail posts with connection devices) that can be assembled independently and simultaneously. Each module can be connected to the vertical post without requiring other modules to be in place first, enabling parallel assembly operations while maintaining overall structural stability.
Solution Approach 2:
The connection devices are pre-configured with their form-fitting geometry before assembly. This preliminary design ensures that when the components are brought together, the stable connection is achieved automatically through the pre-designed geometric engagement, eliminating the need for sequential adjustment and stabilization steps.
3Reliability
If complex internal mechanisms with rotatable shafts and actuating units are used, then connection reliability is improved, but device complexity and susceptibility to damage increase
Solution Approach 1:
The invention removes the complex internal mechanisms including rotatable shafts, actuating units, and multiple moving parts from the connection system. Instead, it uses a simple form-fitting geometric engagement between the connection device and vertical post, maintaining connection reliability while eliminating complexity and vulnerability to mechanical failure.
Solution Approach 2:
The connection devices are designed as simple, robust components without complex internal mechanisms. This simplification makes them more durable and less susceptible to damage from misuse or wear, effectively creating a more reliable system through intentional simplicity rather than complex engineering.
4Stability of the object's composition
If additional bracing and diagonal supports are added to leading guardrails, then structural stability is improved, but weight and storage requirements increase
Solution Approach 1:
The form-fitting connection devices are pre-designed to engage with the vertical post in a way that provides inherent structural stability. This preliminary geometric design creates rigid connections that eliminate the need for additional bracing elements, maintaining structural integrity while reducing overall weight and simplifying the guardrail assembly.
Data Source
Figure 1
Figure 2
Figure 3~6
AI summary
The invention relates to a railing device (10) for a scaffold (50), the scaffold having scaffold levels (54) comprising vertical shafts (58) spaced apart in the width direction (B), crossbars (60) connected to the vertical shafts (58) in the crosswise direction (Q), coverings connected to the crossbars (60) in the width direction (B), wherein the railing device (10) is designed as a leading railing device which is installed from an existing lower scaffold level (54) for an upper scaffold level to be installed thereabove and which then forms a side protection for the upper scaffold level, wherein a right railing shaft (16) has, in the lower end region thereof, a first connection device (20) and a second connection device (22) arranged above at a spacing, a left railing shaft (18) has, in the lower end region thereof, a third connection device (24) and a fourth connection device (26), arranged at a spacing above the third connection device (24), and the third connection device (24) has a third and fourth protrusion unit, each of which protrudes beyond the free end region in the width direction (B) and which contact the outer contour of a vertical shaft (58) on the inside when installed, i.e. the clear inner distance in the crosswise direction (Q) of the third and fourth protrusion unit substantially corresponds to the outside diameter of the vertical shaft (58), wherein the third protrusion unit is designed to be movable / rotatable from a secured position to a released position and vice versa.