Dual Retainer Tool Attachment Latch Mechanism
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Solution Overview
Problem
Conventional tool holders fail to securely retain tools and objects above ground or water, leading to a risk of accidental dropping, which can cause injury or damage.
Innovation Solution
An attachment device with a latch mechanism that requires engagement of at least two retainers, where one retainer must be secured before another can be detached, ensuring that tools are always retained.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional tool holder is used, then the device is simple and easy to operate, but the reliability of preventing accidental dropping is insufficient
Solution Approach 1:
The system pre-establishes a dual-retainer configuration where both retainers must be engaged before any tool can be securely held. This preliminary arrangement of multiple retention points ensures that even if one retainer fails or is accidentally released, the tool remains secured by the other retainer, thereby preventing accidental dropping without requiring complex active control mechanisms
Solution Approach 2:
The patent implements a backup retention system where the second retainer serves as a cushioning safeguard against the failure of the first retainer. This redundant configuration acts as a safety buffer, ensuring that tool loss is prevented even when one retention mechanism encounters issues, thus improving reliability without proportionally increasing complexity
2Reliability
If a single retainer system is used, then the device complexity is low, but the tool can be accidentally dropped if the retainer fails or is released
Solution Approach 1:
The system is pre-configured with two independent retainers that both must be engaged for tool attachment. This preliminary dual-retention setup ensures that tool security is maintained through redundancy, while the independent operation of each retainer preserves operational simplicity
Solution Approach 2:
The retention function is segmented into two independent retainer mechanisms rather than one complex mechanism. Each retainer operates independently with its own engagement and release actions, distributing the retention function across separate simple components rather than consolidating it into a single complex system
3Reliability
If a dual retainer system with interlocking latch is used, then accidental dropping is prevented, but the operation becomes more complex as one retainer must be engaged before the other can be detached
Solution Approach 1:
The patent merges the control of two retainers into a single interlocking latch mechanism. This unified latch simultaneously controls both retainers, ensuring that when one retainer is engaged, the latch prevents detachment of the other retainer. This merging approach maintains tool security through interlocking protection while preserving operational simplicity by using a single control element rather than two independent complex mechanisms
Data Source
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AI summary
An attachment device (10) adapted for use with at least two retainers (14), the device (10) including at least two mountings (44), each for engagement with a retainer (14), wherein when a first one (14a) of the retainers is engaged with the device (10) it cannot be detached from the device until another retainer (14b) has been engaged with the device (10).