File Handle With Threaded Clamping Mechanism
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Solution Overview
Problem
Conventional files require multiple handles with different surface roughnesses for various tasks and cannot have their blades replaced when worn out, leading to resource wastage and user inconvenience.
Innovation Solution
A file handle design featuring a body, ferrule, clamping assembly, and cap that allows for easy adjustment and replacement of file blades by utilizing a movable clamping mechanism and threaded components to securely hold blades of different specifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional file uses a fixed blade assembly method, then the handle structure is simple, but the blade cannot be replaced when worn out
Solution Approach 1:
The file is divided into separable components: a handle and a blade. The blade can be independently removed and replaced from the handle through the slot and tang design, allowing the blade to be segmented from the handle for replacement when worn.
Solution Approach 2:
The handle is designed with a universal interface (slot and clamping mechanism) that can accommodate multiple blades with different surface roughness specifications. This allows one handle to perform multiple functions by accepting various blade types.
2Adaptability or versatility
If a user carries multiple files with different surface roughnesses, then different filing requirements are met, but user convenience decreases
Solution Approach 1:
The handle is designed as a universal holder that can accept blades with different surface roughness characteristics. Users only need to carry one handle and swap between blades as needed, rather than carrying multiple complete files, thereby improving convenience while maintaining adaptability.
Solution Approach 2:
The clamping mechanism incorporates elastic elements that allow dynamic adjustment and easy release of the blade. The elastic force enables the clamping portions to grip the blade tang securely during use, yet allow quick release when the cap is rotated, facilitating rapid blade changes.
3Loss of substance
If a conventional file blade is fixed on the handle, then the assembly is simple, but resource wastage occurs when the blade is worn
Solution Approach 1:
The design allows the worn blade to be discarded and a fresh blade to be installed in the same handle. The handle itself is recovered and reused multiple times, reducing resource wastage compared to discarding the entire file assembly.
Solution Approach 2:
By segmenting the file into a reusable handle and replaceable blades, the durable components (handle) are preserved while only the consumable parts (blades) are replaced, minimizing overall resource wastage.
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
Enables users to easily switch between file blades with varying surface roughnesses, extending the life of the handle and reducing waste by allowing worn blades to be replaced, thus enhancing usability and resource efficiency.
Implementation Method 1
The two clamping portions are subjected to an elastic force and oppositely separated from each other
Implementation Method 2
The cap is rotatably assembled at the second assembling end of the body and has a screwing stick screwed in the threaded hole
Data Source
AI summary
A file handle has a body, a ferrule, a clamping assembly, and a cap. The body has a first end and a second end opposite to the first end. The ferrule is assembled at the first assembling end of the body. The clamping assembly is movably mounted in the body and has two clamping portions and a threaded hole. The two clamping portions extend through the ferrule. The two clamping portions are subjected to an elastic force and oppositely separated from each other. The threaded hole is adjacent to the second assembling end of the body. The cap is rotatably assembled at the second assembling end of the body and has a screwing stick screwed in the threaded hole. Because the space between the two clamping portions can be adjusted by turning the cap, a user can clamp a tang of a file blade by the file handle.