Tool-Mounted Replacement Head Storage for Faster Bit Changes
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Solution Overview
Problem
The inconvenience and time wastage associated with replacing replacement heads in hand-held electric power tools, such as electric drills, screwdrivers, and hammers, due to the need to rummage through tool boxes or kits for the appropriate head.
Innovation Solution
A replacement head external hanging device comprising a binding mounting belt and a storage member that is mounted on the hand-held electric power tool, allowing for quick access and storage of replacement heads directly on the tool.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If replacement heads are stored in a tool box or tool kit, then the replacement heads are organized and protected, but users need to rummage through the tool box or tool kit to find the appropriate replacement head, causing inconvenience and time wastage
Solution Approach 1:
The patent extracts the replacement head storage function from the traditional tool box and integrates it directly onto the hand-held electric power tool body. The storage cavity is formed on the tool housing, allowing replacement heads to be stored directly on the tool rather than in a separate container, enabling users to access replacement heads immediately without rummaging through a tool box.
Solution Approach 2:
The patent merges the storage function with the power tool body by forming a storage cavity on the housing. The limiting component integrates the replacement head retention function with the tool structure, combining what were previously separate functions (tool operation and head storage) into a unified system that eliminates the need for separate tool boxes.
2Reliability
If replacement heads are stored in a tool box or tool kit, then the replacement heads are protected, but users may lose track of or misplace the replacement heads due to rummaging
Solution Approach 1:
The patent extracts the replacement head storage and retention function from external tool boxes and integrates it directly onto the tool body. The limiting component provides secure retention by engaging with the replacement head, ensuring it remains firmly held while allowing easy removal when needed, thus improving both retention reliability and accessibility.
3Loss of time
If a storage member is mounted on the hand-held electric power tool, then replacement heads are easily accessible, but the tool structure becomes more complex
Solution Approach 1:
The patent extracts the storage cavity formation from separate attachments and integrates it directly into the tool housing structure. By forming the cavity within the existing housing geometry, the design minimizes additional structural complexity while achieving rapid access to replacement heads.
Solution Approach 2:
The patent merges the storage cavity and limiting component with the existing tool housing structure. The limiting component integrates multiple functions (retention, positioning, and release) into a single structural element that works with the housing, reducing the number of separate parts needed and simplifying the overall device structure.
Data Source
AI summary
Provided are a replacement head external hanging device and a hand-held electric power tool assembly, the replacement head external hanging device is mounted on a hand-held electric power tool, the replacement head external hanging device includes a binding mounting belt and a storage member, and the binding mounting belt is configured to be wound on the hand-held electric power tool; and the storage member is provided with a storage portion, the storage portion is configured to store and place a replacement head, and the storage member is mounted on the hand-held electric power tool through the binding mounting belt. The arrangement of the replacement head external hanging device is convenient for a user to quickly replace the replacement head, which saves time for the user to rummage in a tool box or a tool kit for the replacement head.