Anchor Retrieval Module With Mechanical Release for Stuck Anchors
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Solution Overview
Problem
Existing solutions for unsticking a stuck anchor are complex, require additional elements, and lack control, often necessitating vessel movement and potential chain cutting.
Innovation Solution
A module comprising a first and second connecting element that mechanically separate when acted upon, allowing a single device to release the anchor from an external element, facilitated by a flexible cable connecting to the anchor's second end.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the anchor is directly connected to the chain, then the anchoring system is simple and reliable, but the anchor cannot be easily retrieved when stuck
Solution Approach 1:
The connecting mechanism is divided into two separate connecting elements: a first connecting element that couples to the chain and a second connecting element that couples to the anchor shank. These elements are connected through a movable coupling mechanism that allows controlled separation, enabling anchor retrieval without requiring complex additional devices.
Solution Approach 2:
The coupling between the first and second connecting elements is designed to be dynamic rather than fixed. The movable coupling allows the elements to remain connected during normal anchoring operations but can be deliberately separated when retrieval is needed, providing operational flexibility without permanent complexity.
2Ease of operation
If a ring is used to surround the anchor shank for retrieval, then the anchor can be pulled free, but the system requires additional elements and multiple steps
Solution Approach 1:
The invention merges the functions of the ring and the connecting mechanism into a single integrated system. The first and second connecting elements with their movable coupling combine the attachment function and the release function that would otherwise require separate devices, reducing the number of components while maintaining ease of operation.
Solution Approach 2:
The movable coupling mechanism serves multiple functions: it maintains the connection between chain and anchor during normal operation, enables controlled separation for retrieval, and eliminates the need for additional rings or external devices. This multi-functionality reduces overall system complexity.
3Adaptability or versatility
If the anchor is allowed to rotate freely around the chain, then movement freedom is increased, but control is lost and complex vessel movement is required
Solution Approach 1:
The movable coupling provides localized freedom of movement at the connection point between the first and second connecting elements, while maintaining overall system stability. This localized adaptability allows the anchor to move sufficiently to disengage from obstacles without requiring uncontrolled rotation or complex vessel maneuvers.
Data Source
AI summary
The present disclosure falls within the area of nautical accessories, in particular accessories for retrieving anchors when they become stuck during anchoring. When, during anchoring, the anchor of a vessel gets stuck in some external element, such as rocks that may have moved and blocked the free action of the anchor, it is difficult to remove it, which in many cases leads to the vessel's owner being forced to cut the chain, only then being able to release the vessel. The described module (10) and system (100) ensure improved and efficient retrieval, by making it possible—with a single module (10) and under a mechanical action—to release a first connecting element (11).