Manual Binding Tool with Force-Activated Switching Mechanism
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Solution Overview
Problem
The existing manual binding tools require cumbersome finger transfers between levers for tightening and cutting operations, making them difficult to use, especially when performing continuous binding tasks in elevated positions, leading to instability and increased fatigue.
Innovation Solution
A manual binding tool with a tightening mechanism, cutting mechanism, and a switching mechanism that allows for both operations to be performed by gripping a pair of levers without transferring fingers, utilizing a projection tie portion and a cutting linkage mechanism to switch between tightening and cutting states based on the applied force, and incorporating a pushing mechanism for cutting and a return preventing mechanism to maintain stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If finger transfer between levers is implemented for tightening and cutting operations, then the tool can perform multiple functions, but the operation becomes cumbersome and difficult to use continuously
Solution Approach 1:
The patent merges the tightening mechanism and cutting mechanism into a single integrated tool body, allowing both functions to be performed without transferring fingers between separate tools. The tool body houses both mechanisms and is operated by a single hand gripping one tool, eliminating the need to transfer fingers between separate tightening and cutting tools.
Solution Approach 2:
The tool body is designed as a universal platform that performs both tightening and cutting functions. The single tool structure with integrated mechanisms allows it to serve multiple purposes (tightening binding bands and cutting excess material) without requiring separate specialized tools, achieving multi-functionality while maintaining ease of operation.
2Device complexity
If sequential finger transfer is required for tightening and cutting, then the tool structure can be simplified, but the operation becomes troublesome and burdensome
Solution Approach 1:
The patent combines the tightening and cutting mechanisms into a single integrated tool body that operates simultaneously or sequentially without requiring finger transfer. The unified structure allows both functions to be accessed from the same grip position, eliminating the manipulation burden of transferring fingers between separate components.
Solution Approach 2:
The tool body acts as an intermediary structure that houses both tightening and cutting mechanisms, allowing the user to operate both functions from a single grip position. The tool body mediates between the user's hand and the two different mechanisms, providing a unified interface that eliminates the need for finger transfer while maintaining access to both functions.
3Adaptability or versatility
If one hand is raised in a high place for binding work, then the work can be performed in elevated positions, but finger transfer becomes particularly difficult and causes fatigue
Solution Approach 1:
The patent merges tightening and cutting functions into a single hand-operable tool, allowing workers to perform both operations while maintaining a stable one-handed grip in elevated positions. The integrated design eliminates finger transfer requirements, enabling continuous operation even when the arm is raised for high-place binding work.
Solution Approach 2:
The tool is designed to be fully operable by one hand without requiring finger transfer between components. The tightening and cutting mechanisms are both accessible from the same grip position, allowing the tool to serve itself through a single stable grip, which is particularly beneficial when working in elevated positions where arm stability is important.
Data Source
AI summary
A manual binding tool in which, without transferring the fingers, tightening and cutting can be performed simply by gripping a pair of levers. The manual binding tool includes a tightening mechanism that pulls a projection tie portion that is passed through a head portion, a cutting mechanism that cuts the projection tie portion in the vicinity of the head portion, first and second levers, a tightening linkage mechanism that links the levers with the tightening mechanism in a state where the projection tie portion is pulled by gripping of the levers in a range within a predetermined angle, and a cutting linkage mechanism that links the levers with the cutting mechanism in a state where the projection tie portion is cut by gripping the levers beyond the predetermined angle. A switching mechanism alternatively allows one of the tightening or cutting linkage mechanism to operate based upon tightening force.