Underwater Hook Button Linkage for Reliable Release Under Load
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Solution Overview
Problem
Existing underwater hooks are difficult to operate reliably when subjected to loads in the opening direction due to the challenge of actuating the release button effectively.
Innovation Solution
The release button is engaged with the actuation button in the secured condition of the underwater hook, ensuring that loads on the jaw latch do not impair the actuation of the release button, and a spring system ensures the buttons automatically return to their secured positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the release button is not engaged with the actuation button, then the structure is simpler, but the release button becomes difficult to actuate when load presses on the jaw latch
Solution Approach 1:
The release button is directly engaged with the actuation button, creating a mechanical linkage that serves as an intermediary. When the release button is actuated, it directly influences the actuation button's position, enabling reliable release even under load. This engagement mechanism transforms the independent button operations into a coordinated system where the release button can effectively counteract load forces.
2Productivity
If the jaw latch is directly released without blocking mechanism, then the operation is faster, but the hook may open accidentally under load
Solution Approach 1:
The actuation button is designed to move through multiple positions (closed position, release position, open position) before the jaw latch actually opens. The blocking mechanism in the closed position prevents immediate opening under load, requiring a deliberate sequence of actions. This preliminary blocking action ensures that accidental opening cannot occur, while the predefined movement sequence maintains operational efficiency.
Solution Approach 2:
The system transitions from a static blocked state to a dynamic release sequence. The actuation button's ability to move between blocked and unblocked states, and between different positions (closed, release, open), creates a dynamic safety mechanism. This dynamic behavior allows the hook to remain securely closed under varying load conditions while enabling controlled opening when intentionally actuated.
3Device complexity
If the actuation button has only closed and open positions, then the structure is simpler, but visual indication of secured status is reduced
Solution Approach 1:
The actuation button utilizes positional visibility as a visual indicator system. The closed position (secured condition) and release position (unsecured condition) are designed to be distinctly visible, allowing operators to immediately assess the hook's status. This visual feedback mechanism provides clear information about the secured state without requiring additional complex indicators or signaling systems.
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 easy and reliable operation of the underwater hook, maintaining the secured condition even under load, with visual indicators and a spring system ensuring effortless actuation and secure closure.
Implementation Method 1
a spring system ensures the buttons automatically return to their secured positions
Data Source
AI summary
Disclosed is an underwater hook comprising a jaw latch, which, in a secured condition of the underwater hook, is releasably secured in a position closing a hook jaw. The underwater hook additionally comprises an actuation button which, for opening the jaw latch, is connected to the jaw latch in a motion-transmitting manner and occupies a closed position in the secured condition of the underwater hook. Furthermore, the underwater hook is provided with a release button blocking a movement of the actuation button away from the closed position in the secured condition of the underwater hook. In order to allow the release button to be actuated without great effort, even in the case of great forces acting on the jaw latch, the present invention provides that the release button is in engagement with the actuation button in the secured condition of the underwater hook.