Rotating Grip Hex Wrench Handle for Torque Application
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Solution Overview
Problem
Existing hand tools, particularly hex wrenches, lack ergonomic design and efficient torque application, making tasks cumbersome and requiring excessive force for tightening or loosening fasteners.
Innovation Solution
A tool handle with a rotatable grip and core design that includes a cylindrical shaft and base with blind bores, allowing hex wrenches to be securely positioned and rotated for enhanced torque application, with a grip portion featuring longitudinal grooves and elastomeric inlays for improved grip and low-friction rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional hex wrench is used without a handle, then the device complexity is low, but the ease of operation is poor and excessive force is required
Solution Approach 1:
The patent combines the hex wrench tool with a separate handle assembly into a unified tool system. The handle assembly integrates a grip portion, core portion with shaft, and base portion with blind bores, merging multiple functional elements into a single coordinated device that improves operational ease while maintaining reasonable complexity
Solution Approach 2:
The handle assembly acts as an intermediary between the user and the hex wrench. The grip portion provides ergonomic contact for the user, the shaft transmits force, and the blind bores interface with the hex wrench, creating a mediator system that amplifies user input and reduces the direct force needed on the fastener
2Ease of operation
If a longer moment arm is used to reduce required force, then the ease of operation improves, but the length of the tool increases
Solution Approach 1:
The handle assembly is designed as a dynamic system where the grip portion can rotate relative to the core portion around the shaft. This rotational freedom allows the user to apply force in optimal directions while maintaining a compact overall tool length, effectively providing a long moment arm without proportionally increasing the tool's physical dimensions
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
Facilitates easier and more efficient application of torque to fasteners with reduced user effort, allowing for greater torque application with minimal force by utilizing the moment arm of the hex wrench, enhancing user experience and task efficiency.
Implementation Method 1
grip portion rotatably disposed about the shaft portion of the core
Implementation Method 2
allowing for greater torque application with minimal force by utilizing the moment arm of the hex wrench
Data Source
AI summary
A tool handle for releasably receiving a tool including a core portion having a base portion and a cylindrical shaft portion extending outwardly therefrom, the base portion including a first surface, a second surface, and an outer wall extending therebetween, the outer wall defining a first bore therein, and a grip portion rotatably disposed about the shaft portion of the core. The first bore is configured to releasably receive a first portion of the tool.