Garland Roller Self-Latching Mechanism for Overhead Line Replacement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing festoon pulleys for overhead line replacement are cumbersome and pose safety risks due to the need for manual handling of fasteners, restricted worker mobility, and potential equipment falls, leading to inefficiencies and increased health hazards.
Innovation Solution
A garland roll design with a movable main barrier and cable pulley system that allows easy attachment and secure fastening to a rope, featuring a spring-loaded mechanism to prevent accidental release, made of electrically non-conductive material for safety, and incorporating rope guards and positioning means for stable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual handling of fasteners is required for attachment, then the garland roll can be securely fastened, but worker mobility is restricted and operation becomes cumbersome
Solution Approach 1:
The patent removes the need for manual fastener handling by integrating a self-latching mechanism into the garland roll body. The conductor cable itself serves as the fastening element, passing through the body and engaging with a latch that automatically secures it, eliminating the need for separate nuts or bolts that workers must manually install.
Solution Approach 2:
The garland roll design enables self-fastening through the conductor cable. The cable passes through the body and engages with the latch mechanism automatically, allowing the system to secure itself without requiring manual intervention for fastener installation and removal.
2Reliability
If the garland roll design requires complex fastening mechanisms, then secure attachment is achieved, but device complexity increases
Solution Approach 1:
The patent simplifies the fastening system by removing complex multi-component fastening mechanisms. Instead, it uses the conductor cable itself as the fastening element combined with a simple latch that engages with the cable, reducing the number of parts and overall system complexity.
Solution Approach 2:
The conductor cable serves multiple functions: it carries electrical current, provides structural support, and acts as the fastening element for securing the garland roll. This multi-functionality eliminates the need for separate fastening components, reducing device complexity.
3Ease of operation
If the garland roll is held only by worker's grip during installation, then installation is simple, but equipment falls from height creating safety risks
Solution Approach 1:
The patent incorporates a latch mechanism that is pre-configured to automatically engage with the conductor cable once it passes through the body. This preliminary setup ensures that as soon as the cable is threaded, the latch secures it, preventing accidental drops during the installation process without requiring continuous manual holding.
Solution Approach 2:
The garland roll secures itself to the conductor cable through the automatic latch engagement. Once the cable passes through the body, the latch automatically engages to prevent the roll from detaching, eliminating the need for continuous manual support and preventing accidental falls.
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
Enhances worker safety and efficiency by reducing manual handling, minimizing equipment falls, and ensuring stable operation, particularly in hazardous environments, while supporting high-voltage overhead lines effectively.
Implementation Method 1
featuring a spring-loaded mechanism to prevent accidental release
Implementation Method 2
a cable pulley positioned inside the body, the festoon pulley having a first partial cable pulley extending from the body into the interior
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
The invention relates to systems and devices for use in overhead power line construction. In particular, the invention relates to a novel garland pulley (100) with which a conductor cable (300) can be replaced. In order to be able to easily place the garland pulley (100) onto the conductor cable (300), for example, with one hand, the garland pulley (100) has a main locking mechanism (124) which is movable between a closed position, in which an opening (104) leading into the interior of the garland pulley (100) is blocked, and an open position, in which passage from the outside to the interior through the opening (104) is possible.