Interchangeable Jaw Pliers with Spring-Loaded Locking Mechanism
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Solution Overview
Problem
Conventional crimping pliers require tedious efforts to interchange working jaws, as they are typically attached by screws, making the process time-consuming and labor-intensive.
Innovation Solution
The pliers feature a control mechanism with a retaining spacer, a spring-biased driving member, and a guiding mechanism that allows for easy attachment and detachment of interchangeable working jaws by moving the driving member between locking and releasing positions, facilitating quick jaw changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If working jaws are attached by screws, then the jaws can be securely fixed to the arm members, but the interchange process becomes time-consuming and labor-intensive
Solution Approach 1:
The patent employs a dynamic locking mechanism where a driving member can be moved between a locking position (to secure the working jaw) and a releasing position (to allow removal). This dynamic system replaces static screw fixation, enabling quick interchange while maintaining secure attachment during use.
Solution Approach 2:
The driving member acts as an intermediary component between the user's manual input and the working jaw. By pressing the end knob of the driving member, the user indirectly actuates the locking or releasing mechanism, simplifying the operation while ensuring reliable jaw fixation or removal.
2Ease of operation
If a simple attachment method is used for working jaws, then the interchange process becomes quick and easy, but the secure fixation during crimping operation may be compromised
Solution Approach 1:
The driving member serves as a mediating mechanism that translates simple user input (pressing the end knob) into reliable locking or releasing action. This intermediary system maintains ease of operation while ensuring secure jaw fixation through the engaging portion that positively engages with the working jaw.
Solution Approach 2:
The spring-loaded driving member provides self-locking functionality where the spring automatically maintains the driving member in the locking position once engaged, eliminating the need for continuous user intervention to maintain secure fixation during crimping operations.
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 rapid and effortless interchange of working jaws, reducing user effort and time required for switching between different jaw sizes or shapes, enhancing operational efficiency.
Implementation Method 1
a spring biased between the retaining spacer and the driving member
Data Source
AI summary
Pliers include a pair of arm members, a pair of handles, at least one interchangeable working jaw and a control mechanism. Each arm member includes two parallel arm plates. The handles are connected to each other for movement of the arm members towards and away from each other. The working jaw is detachably supported in between the arm plates of the associated arm member. The control mechanism includes a retaining spacer, a driving member and a spring biased between the retaining spacer and the driving member. The retaining spacer is positioned in between the arm plates of the arm member. The driving member is movably disposed in between the arm plates of the arm member and has an end knob exposed outside the arm member so that pressing of the end knob of the driving member drives the driving member to be engaged with or disengaged from the working jaw.