Powered Screwdriver Tool Holder with Bent Hex Key Retention
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Solution Overview
Problem
Existing tool holders for screwdrivers are limited in their ability to accommodate a variety of tools, particularly screwdriver bits and hex keys with different bends and diameters.
Innovation Solution
A tool holder integrated with a powered screwdriver, driven by a motor, which is configured to selectively hold both screwdriver bits and hex keys, including those with bends, by using a retainer and sleeve system that accommodates different sizes and shapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the tool holder is designed to hold only screwdriver bits, then the structure is simple, but the versatility is limited
Solution Approach 1:
The tool holder is designed with a universal retention mechanism that can accommodate multiple types of tools including screwdriver bits, hex keys, and other fastening tools. The holder features a cylindrical recess with internal geometry that can securely retain different tool shapes and sizes through a single integrated structure, eliminating the need for multiple specialized holders.
Solution Approach 2:
The tool holder is divided into functional segments: a cylindrical retention recess, a drive interface portion, and an optional bit extender section. This segmentation allows each portion to be optimized for its specific function while maintaining overall simplicity and enabling multi-tool compatibility through modular design.
2Adaptability or versatility
If the tool holder accommodates hex keys with bends and different diameters, then the versatility improves, but the device complexity increases
Solution Approach 1:
The retention mechanism utilizes three-dimensional geometric features within the cylindrical recess, including angled surfaces and varying depth zones, to accommodate hex keys with bends and different diameters. The internal geometry creates multiple retention positions that can secure tools of varying configurations without requiring complex mechanical adjustments.
Solution Approach 2:
Different portions of the retention recess have locally optimized geometries to accommodate specific tool types. The recess includes regions with different radial clearances and axial depths that can securely hold both straight and bent hex keys, as well as various screwdriver bit configurations, through localized geometric variations rather than a single uniform structure.
3Ease of operation
If the tool holder is made integral with the screwdriver, then the ease of operation improves, but the ease of repair worsens
Solution Approach 1:
While the tool holder is integrated with the screwdriver body, the design includes separable functional modules such as an optional bit extender section and a distinct drive interface portion. This segmentation allows for easier manufacturing and potential repair by enabling replacement of specific modules without requiring complete disassembly of the integrated assembly.
Data Source
AI summary
The present disclosure relates to a powered screwdriver. The powered screwdriver includes a housing, a motor housed in the housing and a tool holder driven by the motor. The tool holder selectively holds both a screwdriver bit and a hex key. The hex key includes a bend such that legs of the hex key are transverse to one another.