U-Shaped Dock Line Hook for Safe Mooring

Solution Overview

Problem

Current methods for docking watercrafts are challenging and pose safety risks, especially in rough conditions, as they require manual handling of dock lines to attach them to pilings or cleats.

Innovation Solution

A dock line handling device featuring a U-shaped docking line hook with pegs and grooves on the tines, designed to hold open a dock line loop, allowing for safe and easy attachment to cleats and pilings from a distance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual handling of dock lines is used to attach them to pilings or cleats, then the docking process can be completed, but safety risks increase and the operation becomes difficult in rough conditions

Engineering Contradiction:

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent introduces a dock line handling device as an intermediary tool between the operator and the dock line. This device includes a holding mechanism with tines that grip the dock line, allowing the operator to manipulate the line from a safe distance without direct manual handling, thereby reducing safety risks while maintaining operational ease

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The holding mechanism is designed to automatically grip and release the dock line through spring-loaded tines. When the operator applies force to the handle, the tines automatically release the line; when force is released, the springs automatically reset the tines to the gripping position, eliminating the need for continuous manual adjustment and improving both safety and operational ease

Inventive Principle:

Principle #25Self-service

2Ease of operation

If the dock line is held open for placement about the piling or cleat, then the docking operation is facilitated, but the device complexity increases

Engineering Contradiction:

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The holding mechanism is segmented into multiple independent tines (at least two tines) that can independently grip and hold the dock line. This segmentation allows the device to maintain a simple overall structure while providing effective line holding capability through the distributed action of multiple simple tine elements

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Instead of using a complex clamping or binding mechanism to hold the dock line open, the patent inverts the approach by using simple protruding tines that passively engage with the line through their geometry alone. The line is held open by the physical presence of the tines rather than by active constriction, simplifying the device structure while maintaining operational effectiveness

Inventive Principle:

Principle #13The other way round (Inversion)

Data Source

PatentUS20250187705A1Dock line handling device

Publication Date: 2025.06.12

AI summary

The present invention is directed to a docking line hook including a U-shaped component for holding open a docking line. The device enables safer and simpler mooring of a boat to a dock. The docking line hook is attachable to a standard dock pole, and facilitates the attachment of dock lines to cleats or pilings directly from the boat. The docking line hook includes semicylindrical grooves at the end of tines of the U-shape as well as posts extending upwardly therefrom, allowing the docking line to be held open and securely by the docking line hook during use.