Sectional Watercraft Nesting and Sealing for Compact Transport

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Solution Overview

Problem

Conventional watercrafts are often heavy and long, making them impractical for transportation, especially inside vehicles, and existing sectional designs do not effectively compact into smaller sizes for easy carrying.

Innovation Solution

A watercraft composed of separable body sections with a locking assembly and sealing parts that allow the sections to be assembled and disassembled for forming a compact structure, enabling easier transportation by fitting smaller sections inside larger ones or sliding them together, thereby reducing the overall length.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If a watercraft is constructed as a single body, then it provides structural integrity and stability, but it becomes heavy and long making it impractical for transportation inside automobiles

Engineering Contradiction:
Improvestructural integrityVSAvoidtransportability
Core Design Contradiction:
Stability of the object's compositionVSLength of moving object

Solution Approach 1:

The watercraft is divided into multiple detachable sections (e.g., cockpit section, mid-section, bow section) that can be separated for transportation. Each section maintains structural integrity independently while allowing the complete watercraft to be broken down into manageable pieces that fit within vehicle trunks or cargo areas.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The smaller watercraft sections are designed to nest within larger sections when disassembled. For example, the bow section can be inserted into the mid-section, and the cockpit section can be placed within or alongside other sections, creating a compact packed configuration that minimizes transportation space requirements.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Reliability

If a watercraft is constructed as a single body, then it maintains watertightness, but it becomes inconvenient for an individual to move over a certain distance

Engineering Contradiction:
ImprovewatertightnessVSAvoidmaneuverability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The watercraft is divided into multiple detachable sections connected by coupling mechanisms that maintain watertight seals. Each section can be easily handled by one or two persons, improving maneuverability while the sealing mechanisms ensure watertightness when assembled.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The watercraft sections are designed with three-dimensional coupling interfaces that engage in multiple directions, providing both mechanical strength and watertight sealing. The coupling mechanisms extend vertically and horizontally to create robust connections that maintain integrity during use.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Length of moving object

If sectional watercraft designs are used, then transportability is improved, but water leakage between sections becomes a problem

Engineering Contradiction:
ImprovetransportabilityVSAvoidwatertightness
Core Design Contradiction:
Length of moving objectVSReliability

Solution Approach 1:

Flexible sealing gaskets or membranes are installed at the coupling interfaces between watercraft sections. These flexible seals conform to the coupling surfaces and maintain watertightness even when sections are assembled or disassembled, preventing water leakage while allowing for the segmented design.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The coupling mechanisms incorporate composite structures combining rigid connection elements with flexible sealing materials. This composite approach provides both the mechanical strength needed for structural integrity and the flexibility required for effective water sealing at the joints between sections.

Inventive Principle:
Principle #40Composite materials

4Stability of the object's composition

If locking assemblies are added to secure sections together, then structural integrity is maintained, but device complexity increases

Engineering Contradiction:
Improvestructural integrityVSAvoidassembly complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The locking mechanism is integrated directly into the coupling interface between sections, combining the structural connection and locking functions into a single unified component. This eliminates separate locking devices and reduces overall complexity while maintaining structural integrity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The coupling mechanism incorporates self-latching or automatic locking features that engage when sections are brought together, reducing the need for manual operation. The design allows sections to lock themselves into place through simple alignment and engagement actions, minimizing the complexity of the assembly process.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP3294618B1Sectional watercraft
Publication Date: 2022.11.09 PAKAYAK LLC
  • EP3294618B1 patent drawingFigure 1~2
  • EP3294618B1 patent drawingFigure 3~6
  • EP3294618B1 patent drawingFigure 4a~4b

AI summary

A full-length watercraft has two or more separable body sections which can be taken apart and packed into a single packed structure having a smaller length. The present invention provides two ways in packing two adjacent body sections. One way is to take apart the two adjacent body sections and turn one of the sections around so that the smaller section can be put inside the larger section. The other way is to release the securing mechanism between the adjacent body sections so that the smaller section can be slid into the larger section. With a packed structure of a smaller length, the watercraft can be put in an automobile or on a cart to be transported.