Drain Cleaner Cord Retention via Segmented Perimeter Holds
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Solution Overview
Problem
Users of drain cleaning equipment face inefficiencies and potential damage due to the time-consuming process of unwrapping electrical power supply cords and limited cord management options, particularly in confined spaces like vans or trucks.
Innovation Solution
A selectively moveable member or lever with a cord hold mechanism that retains the electrical power supply cord when not in use and releases it easily when the machine is actuated for operation, integrated into the machine's design to minimize wraps and protect the cord during transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electrical power supply cord is completely wrapped around the machine for storage, then the cord is protected during transport, but the time required to unwrap the cord increases significantly
Solution Approach 1:
The cord retention system divides the cord storage into multiple cord holds distributed around the machine perimeter, allowing the cord to be stored in segments rather than as one large wrap. This segmentation reduces the unwrapping time while keeping the cord protected during transport.
Solution Approach 2:
The cord is pre-positioned in the cord holds during machine assembly, creating a predetermined storage path. This preliminary arrangement allows for quick release during operation while maintaining compact, protected storage during transport, eliminating the need for extensive unwrapping.
2Productivity
If the cord is left loose or improperly wrapped during transport, then the unwrapping process is faster, but the cord or cord holder may be damaged
Solution Approach 1:
Multiple cord holds distribute the cord storage around the machine, preventing excessive tension or stress concentration on any single point. This segmentation protects the cord and holders from damage while allowing rapid cord access during operation.
Solution Approach 2:
The cord retention system is designed to be dynamic, allowing the cord to be quickly released when needed while automatically returning to a protected state during transport. The cord holds provide flexible retention that adapts to both operational and transport conditions.
3Quantity of substance
If a traditional cord holder is used, then the cord can be stored, but the limited space in vans/trucks makes cord management difficult and prone to damage
Solution Approach 1:
The cord retention system merges the cord storage function directly into the machine structure by positioning cord holds around the machine perimeter. This integration eliminates the need for separate external cord holders, optimizing space utilization in vehicles while protecting the cord from environmental damage.
Solution Approach 2:
The machine perimeter serves multiple functions: it provides structural support, defines the machine boundary, and acts as the storage path for the electrical cord. This multi-functionality maximizes space efficiency and protects the cord without requiring additional components.
Data Source
AI summary
Electrical power supply cord retention systems are described. Also described are drain cleaning machines using such cord retention systems. In addition, methods of selectively retaining power cords in association with drain cleaning machines are described.