Switchable Hand Tool with Rotating Wheel Mechanism
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Solution Overview
Problem
Conventional hand tools for peeling and cutting sheathing wire are cumbersome, uncomfortable to use, and require multiple tools for different functions, increasing user expenditure and carrying load.
Innovation Solution
A hand tool with multiple switchable functions, featuring a casing, press cutting mechanism, and switching wheel, allowing users to toggle between functions by aligning or misaligning positioning surfaces, integrating multiple tools into a single device for reduced expenditure and improved convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the hand tool is designed with multiple functions (peeling, cutting, and other operations), then the user's expenditure and carrying load increase, but the tool's versatility improves
Solution Approach 1:
The hand tool integrates multiple functions including peeling, cutting, and other operations into a single device. The tool body contains interchangeable components such as a cutting blade, peeling troughs, and additional functional attachments that can be selected based on different work requirements, eliminating the need for users to carry multiple separate tools.
Solution Approach 2:
The hand tool is divided into modular components including a main tool body, interchangeable cutting elements, and functional attachments. These segmented parts can be independently selected, installed, and removed, allowing the single tool to perform multiple different functions through component interchangeability.
2Device complexity
If the hand tool uses a long grip structure for peeling and cutting, then the structural simplicity is maintained, but the user's comfort and force application efficiency deteriorate
Solution Approach 1:
The hand tool incorporates a rotating wheel mechanism that allows the tool orientation to be dynamically adjusted during use. The user can rotate the tool body to align the force application direction with the peeling direction, optimizing ergonomics and mechanical efficiency while maintaining the compact structure.
Solution Approach 2:
The tool introduces rotational freedom around the grip axis, adding a rotational degree of freedom to the basic linear gripping action. This allows the user to orient the cutting or peeling surface at different angles relative to the wire, improving comfort and effectiveness without increasing the overall tool length.
3Ease of operation
If the hand tool applies force in a direction not aligned with the peeling direction, then the simple gripping action is maintained, but the peeling efficiency and user comfort deteriorate
Solution Approach 1:
The hand tool incorporates a rotating wheel mechanism that allows the tool orientation to be dynamically adjusted during use. The user can rotate the tool body to align the force application direction with the peeling direction, optimizing ergonomics and mechanical efficiency while maintaining the compact structure.
Data Source
AI summary
A hand tool includes a casing, a press cutting mechanism, a switching wheel and stripping mechanism. The casing has a hollow chamber in its interior. The press cutting mechanism is installed inside the hollow chamber. The press cutting mechanism includes a ram component and a sleeve that sheathes the ram component. The external periphery of the sleeve has a first positioning surface. The switching wheel has a through hole that corresponds to and selectively connects to the sleeve. The inner wall of the through hole has a second positioning surface. The stripping mechanism has a lock connected to the casing through a soft belt. By turning the switching wheel, the second positioning surface and the first positioning surface can be aligned or misaligned. As a result the hand tool can be switched between two or more functions.