Interchangeable Tool Handle with Threaded Coupling and Locking Members
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Solution Overview
Problem
Existing hand tools with integrated handles pose storage and transportation challenges due to space inefficiency and unsightly appearance, as they cannot be easily detached or swapped with different tools.
Innovation Solution
An interchangeable tool device featuring a handle with an external threaded portion and a tool head with an internal threaded portion, along with movable lock members and apertures, allowing secure and quick attachment and detachment for various tools, enabling efficient storage and transportation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If handles are integrated as permanent parts of tools, then tool stability and structural integrity are improved, but storage space efficiency and transportation convenience deteriorate
Solution Approach 1:
The tool system is divided into separate components: a handle and a tool head, connected through a removable coupling mechanism. The handle includes a receptacle that receives a coupling member from the tool head, allowing the components to be separated for compact storage yet firmly connected during use. This segmentation enables independent storage of handle and tool heads, significantly reducing the volume required for storage and transportation while maintaining structural integrity when assembled.
2Stability of the object's composition
If handles are integrated as permanent parts of tools, then tool structural integrity is improved, but adaptability and versatility deteriorate
Solution Approach 1:
The handle is designed with a universal receptacle that can accommodate multiple types of tool heads through standardized coupling members. The receptacle includes a body portion and a locking member that work together to securely retain different tool heads. This universal design allows a single handle to be used with various tool heads (e.g., shovels, rakes, hoes), providing adaptability and versatility while maintaining structural integrity through the standardized coupling mechanism.
3Ease of operation
If removable coupling mechanisms are added to tools, then adaptability and ease of operation are improved, but device complexity increases
Solution Approach 1:
The coupling mechanism incorporates a spring-loaded locking member that automatically engages with the receptacle body when the coupling member is inserted. The spring provides the necessary force to secure the tool head to the handle without requiring additional manual operations. This self-service mechanism simplifies the attachment process, allowing users to quickly connect and disconnect tool heads by simply pushing or pulling, while the internal spring mechanism handles the locking and unlocking functions automatically, minimizing the complexity of user interaction.
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 secure and efficient attachment/detachment of handles from various tools, optimizing storage space and reducing visual clutter during transportation, while allowing for flexible tool configurations at job sites.
Implementation Method 1
The handle has an external threaded portion and the tool head has an internal threaded portion, allowing secure attachment through thread engagement
Implementation Method 2
The plurality of lock members and lock apertures cooperate to limit rotation of the tool head relative to the handle when locked
Data Source
AI summary
An interchangeable tool device has a handle with an external threaded portion and at least three lock members, a tool head with an internal threaded portion, and at least three lock apertures. The locking members are movable between a locked position and a free position. The lock apertures receive the lock members when the lock members are in the locked position and cooperate to limit rotation of the tool head relative to the handle. The lock apertures and the lock not limiting rotation of the tool head relative to the handle when the lock members are in the free position.