Power Tool Lanyard With Auxiliary Part Retention
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Solution Overview
Problem
Tradespeople face the risk of dropping portable power tools at heights, leading to damage and potential injury, as existing lanyard solutions do not effectively prevent the tools and their auxiliary parts from falling or becoming disconnected during use.
Innovation Solution
A lanyard system comprising two interconnected belts with adjustable friction buckles and VELCRO fasteners, along with a spring strap and carabiner, designed to securely attach power tools and their auxiliary parts to the user or infrastructure, preventing significant falls and maintaining functional connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a lanyard is used to attach power tools to prevent dropping, then the risk of damage and injury is reduced, but the complexity of the attachment system increases
Solution Approach 1:
The patent combines multiple attachment functions into a single integrated lanyard system. The lanyard integrates tool attachment, auxiliary part retention, and user connection features into one unified device, eliminating the need for separate attachment mechanisms and reducing overall system complexity while maintaining high reliability
Solution Approach 2:
The lanyard is designed with multi-functional capabilities: it attaches to the power tool, retains auxiliary parts through retention features, connects to the user via wearable components, and prevents tool dropping. This universal design allows one device to perform multiple safety and attachment functions simultaneously
2Reliability
If auxiliary parts are securely attached to the power tool, then functional connectivity is maintained, but the device complexity increases
Solution Approach 1:
The retention feature is integrated directly into the lanyard structure rather than being a separate attachment mechanism. This merging of retention functionality into the existing lanyard design maintains functional connectivity for auxiliary parts without adding independent complex attachment systems
Solution Approach 2:
The lanyard serves multiple purposes: it acts as a drop prevention mechanism, an auxiliary part retention system, and a user connection device. This multi-functionality allows the same structure to maintain functional connectivity for both the tool and auxiliary parts without requiring separate specialized mechanisms
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
The lanyard system effectively prevents portable power tools and their auxiliary parts from falling, reducing damage and injury risks by maintaining secure attachment and functional connectivity during use, allowing immediate recovery and reuse.
Implementation Method 1
the accessory comprises a spring, and the spring strap connects to the building or infrastructure via the spring
Implementation Method 2
prevents the portable power tool from falling a significant distance
Data Source
AI summary
A lanyard for a power tool includes at least two belts including a first belt and a second belt attached to each other at a single junction. The lanyard may also include an accessory mounted on the belt that is freely rotatable around the belt.