Multi-Tool Locking Mechanism With Self-Adjusting Latch
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Solution Overview
Problem
Existing multi-purpose mechanical tools lack a secure and adaptable locking mechanism that can effectively lock multiple tools in place while allowing selective operation of one tool while keeping others non-operational, especially when tools are imperfectly aligned or positioned.
Innovation Solution
A locking mechanism comprising a trapezoid bar and a holding arm with degrees of freedom to self-adjust and a latch element, which securely locks two or more tools relative to a central axis, preventing accidental release and allowing fine-tuning for imperfect tool alignment, using a spring for locking force and allowing movement in X, Y, yaw, pitch, and roll directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rigid locking mechanism is used to securely lock tools in place, then the locking reliability is improved, but the mechanism becomes unable to accommodate imperfect tool alignment and positioning
Solution Approach 1:
The locking mechanism incorporates dynamic elements including a rotatable lever element and a rotatable latch element that can adjust their positions and orientations. The lever element can rotate about its axle to accommodate different tool positions, and the latch element can rotate to engage or disengage from the locking bar. This dynamic capability allows the mechanism to adapt to imperfect tool alignment while maintaining secure locking when properly aligned.
Solution Approach 2:
The mechanism allows for parameter changes in the form of rotational degrees of freedom. The lever element can rotate to change the angular position of the locking bar, and the latch element can rotate to change its engagement state. These parameter changes enable the mechanism to transition between locked and unlocked states while accommodating variations in tool positioning and alignment.
2Ease of operation
If a locking mechanism with multiple degrees of freedom is used to allow selective tool operation, then the ease of operation is improved, but the risk of accidental release increases
Solution Approach 1:
The locking mechanism is segmented into distinct functional elements: a lever element for controlling the locking bar position, a locking bar for actual tool engagement, and a latch element for securing the lever in place. This segmentation allows independent control of each function - the lever can be rotated to position the locking bar, and the latch can be engaged to prevent accidental lever movement. The separated functions enable selective tool operation while maintaining protection against accidental release through the latch mechanism.
3Ease of manufacture
If a simple locking mechanism is used to reduce device complexity, then the ease of manufacture is improved, but the ability to lock multiple tools with selective operation is reduced
Solution Approach 1:
The locking mechanism is designed with universal components that can lock multiple different tools. The locking bar can engage with various tool configurations, and the lever-latch system provides a standardized interface for securing tools in different positions. The mechanism can lock tools in open positions, closed positions, or intermediate positions, providing multi-functional capability while maintaining a relatively simple overall structure with only three main elements.
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 mechanism ensures secure locking and adaptability for various tools, preventing accidental release during use, even with imperfect tool alignment, and allows for selective operation of tools without getting stuck or becoming non-operational due to excessive rigidity.
Implementation Method 1
using a spring for locking force
Data Source
AI summary
Locking mechanism and safety latch for multi-purpose apparatus. The apparatus includes at least a first tool and a second tool. Each tool can rotate between open position and closed position. The locking mechanism includes a rotatable elongated lever, connected perpendicularly to a locking bar. The mechanism is switchable among at least: a first position in which the mechanism holds or locks in place both the first tool and the second tool when they are in closed positions; a second position in which the mechanism holds or locks in place both the first tool and the second tool when the first tool is in open position and the second tool is in closed position; a third position in which the mechanism holds or locks in place both the first tool and the second tool when the first tool is in closed position and the second tool is in open position.