Reversible Wire Cutter Inserts and Non-Obstructive Pliers Lock
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Solution Overview
Problem
Traditional multi-function tools require replacement of wire cutter inserts when they become damaged or dulled, and their freely-pivoting locks can obstruct functionality, necessitating additional components and potential interference with tool operation.
Innovation Solution
A multi-function tool design featuring pivotally connected handles with interchangeable cutting inserts and a locking mechanism that includes a biasing member and lock ring, allowing the handles to be locked in a closed position without obstructing functionality, and enabling the cutting inserts to be reversed for continued use without separate replacements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wire cutter inserts are made replaceable, then the tool can be maintained after inserts become damaged or dulled, but the user must carry additional replacement inserts and the device complexity increases
Solution Approach 1:
The cutting insert is segmented from the handle, allowing it to be removed and replaced independently. The insert has a specific mounting interface that allows it to be detached from the handle and reattached, enabling replacement without replacing the entire tool.
Solution Approach 2:
When a cutting insert becomes damaged or dull, it is discarded and a fresh insert is installed. The system recovers the value of the handle and other components, requiring only replacement of the consumable insert rather than the entire tool.
2Force
If a lock mechanism is added to hold handles in closed position, then the tool can maintain cutting force, but the freely-pivoting lock can obstruct functionality when not desired
Solution Approach 1:
The lock mechanism is designed to be dynamic rather than static. It can pivot freely when not engaged, allowing full range of motion for handling the tool. When needed, it can be manually positioned to lock the handles in the closed position to maintain cutting force.
Solution Approach 2:
The locking function is extracted as a separate, optional feature rather than being integrated into the basic handle structure. The lock can be engaged or disengaged independently, allowing users to take out the locking function when not needed and avoid interference with normal tool operation.
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
The design allows for continuous use without needing separate replacement inserts and prevents the locking mechanism from obstructing the tool's functionality, enhancing usability and reducing the need for additional components.
Implementation Method 1
a biasing member configured to bias the lock button toward the unlocked position
Implementation Method 2
When engaged, the lock ring covers the lock button in the locked position
Data Source
AI summary
A multi-function tool includes a first handle, a second handle, a first cutting insert, and a second cutting insert. The first handle is pivotally coupled to the second handle at a pivoting axis. The first handle and the second handle move between an open position and a closed position relative to each other. A first insert surface is formed on the first handle, and a second insert surface is formed on the second handle. The first cutting insert includes a front side, a rear side configured to interface with the first insert surface, a left side including a flat anvil surface, and a right side including a cutting edge. A second cutting insert includes a front side, a rear side configured to interface with the second insert surface, a left side including a flat anvil surface, and a right side including a cutting edge.