Inline Chuck Key With Hex Bit for Safer Bit Changes
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Solution Overview
Problem
Manipulating conventional T-shaped chuck keys is cumbersome, especially with gloves, and poses a risk of injury due to accidental drill activation, as they require manual handling and can be easily lost.
Innovation Solution
A linear chuck key with a male chuck key on one end and a male hex bit on the other end, allowing for inline manipulation using an impact driver or screwdriver, which keeps the chuck key away from the user's hands and facilitates secure storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional T-shaped chuck key is used, then the chuck key can be easily manipulated by hand, but it requires consistent downward pressure to remain within the female receptacle and poses injury risk from accidental drill activation
Solution Approach 1:
An impact driver serves as an intermediary tool between the user and the chuck key manipulation process. The user operates the impact driver instead of directly handling the chuck key, which remains inserted in the drill's female receptacle. This intermediary approach eliminates direct hand contact with the chuck key and drill teeth, preventing injury from accidental activation while still enabling effective chuck key manipulation through the impact driver's rotational force.
2Ease of operation
If a conventional T-shaped chuck key is used, then the chuck key can be kept handy by clipping to the power cord, but it can be easily lost and is cumbersome to handle when wearing gloves
Solution Approach 1:
The chuck key is designed with a hex bit receptacle that accepts standard hex bits, giving it universal compatibility with impact drivers and hex bit storage systems. This multi-functionality allows the chuck key to be stored alongside other hex bits in standard tool cases or on tool belts, eliminating the need for special clipping mechanisms and preventing loss through integration with existing universal storage infrastructure.
3Productivity
If an impact driver is used to manipulate the chuck key, then the manipulation is expedited and simplified, but requires a linear chuck key design with hex bit connector
Solution Approach 1:
The chuck key design merges two functional elements into a single integrated tool: the traditional chuck key functionality for manipulating drill chucks and a hex bit receptacle for attachment to impact drivers. This merging eliminates the need for separate tools (chuck key and hex bit adapter) and enables the chuck key to be operated both manually and through impact drivers, expediting bit exchange while maintaining structural integrity through the unified linear design.
Data Source
AI summary
A chuck key apparatus equipped with a male hex bit is described. A chuck key is present at a first end of a shaft, and the male hex bit is disposed on a second end of the shaft. The first end is in line with the second end. The apparatus facilitates manipulation of the jaws of a power tool rapidly and safely via connection of the apparatus to an impact driver or screwdriver via the male hex bit of the second end. A shaft connects the first end to the second end.