Scaffold Leading Railing Post With Snap-Lock Transfer Connection

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Solution Overview

Problem

Existing guardrail systems for scaffolds require complex and time-consuming assembly and disassembly processes, with a risk of vertical and horizontal displacement during installation, and lack reliable and robust functionality.

Innovation Solution

A guardrail post system with a rotatable shaft and elastic elements that automatically locks onto vertical posts, featuring a movable form-locking unit that snaps into place upon reaching the end position, and a simple mechanism for unlocking, allowing quick and secure assembly and disassembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a leading railing is designed to be movable and transferable between scaffolds, then the adaptability and versatility of the scaffold system is improved, but the device complexity increases due to multiple connection devices and transfer mechanisms

Engineering Contradiction:
Improvetransferability of leading railingVSAvoidconnection device structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The connection device is divided into multiple independent components: a first connection device with a first connection element for connecting to the scaffold, and a second connection device with a second connection element for connecting to the leading railing. This segmentation allows each component to perform its specific function independently, enabling the leading railing to be transferred between scaffolds while maintaining manageable complexity through modular design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connection device is designed with universal functionality to connect both the scaffold structure and the leading railing. The first connection element interfaces with the scaffold while the second connection element interfaces with the railing, creating a multi-functional connection system that enables transferability without requiring entirely separate connection mechanisms for each component.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Productivity

If the leading railing can be easily transferred between scaffolds, then the productivity and ease of operation is improved, but the reliability may worsen due to repeated connection and disconnection operations

Engineering Contradiction:
Improvetransfer speed of leading railingVSAvoidconnection stability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The connection device is pre-configured with alignment features and guiding structures that facilitate quick and accurate connection between the scaffold and leading railing. The first and second connection elements are designed with predetermined geometries that guide proper engagement, allowing workers to perform connection and disconnection operations rapidly while maintaining consistent connection quality and reliability across multiple transfers.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4560092B1Railing post for a leading railing for a scaffold, scaffold with a leading railing and method for transferring a leading railing to a scaffold
Publication Date: 2026.05.13 WILHELM LAYHER VERWALTUNGS GMBH
  • EP4560092B1 patent drawingFigure 1
  • EP4560092B1 patent drawingFigure 2
  • EP4560092B1 patent drawingFigure 3

AI summary

Railing post for a leading railing for a scaffold, scaffold with a leading railing and method for relocating a leading railing on a scaffold, wherein a third connection device (16) is designed as a projection device running in the transverse direction (Q) with a first connection region (34) connected to the railing post (10.1, 10.2, 10.3, 10.4), wherein the first connection region (34) has a downwardly pointing, in particular curved, projection unit (38, 38.1).