Inflatable Kayak With Pedal Propulsion and Compact Storage

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Solution Overview

Problem

Conventional pedalable kayaks are rigid, making them difficult to store and transport due to their size, which is not suitable for compact spaces, and there is a need for a compact, easily deployable watercraft that can be efficiently propelled.

Innovation Solution

An air inflatable watercraft with inflatable bow and stern, and side compartments that form a cockpit upon inflation, equipped with a human-operated propulsion mechanism, allowing for efficient propulsion and compact storage when deflated.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a rigid plastic kayak is used, then propulsion efficiency and structural strength are improved, but storage space requirements and transport difficulty increase

Engineering Contradiction:
Improvestructural strengthVSAvoidstorage space
Core Design Contradiction:
StrengthVSVolume of moving object

Solution Approach 1:

The kayak transitions from a rigid solid state to an inflatable state, changing the physical parameter of structural rigidity. When deflated, the kayak compresses to a fraction of its operational volume for compact storage, and when inflated, it achieves the necessary structural strength and hydrodynamic shape for efficient propulsion.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The kayak uses inflatable air chambers to provide structural support and maintain its hydrodynamic shape. The air pressure within the chambers creates the rigid structure needed for strength and propulsion efficiency, while allowing the kayak to be deflated and compressed for compact storage when not in use.

Inventive Principle:
Principle #29Pneumatics and hydraulics

2Productivity

If a rigid plastic kayak is used, then propulsion efficiency is improved, but ease of storage and transport deteriorates

Engineering Contradiction:
Improvepropulsion efficiencyVSAvoidease of storage
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The kayak's physical state is changed from rigid to inflatable, allowing it to be compressed to a compact form for easy storage in small spaces like garages, boats, or motor homes, while maintaining the ability to achieve full structural form for efficient propulsion when deployed.

Inventive Principle:
Principle #35Parameter changes

3Volume of moving object

If the kayak is made compact for storage, then storage space requirements are reduced, but propulsion efficiency may deteriorate

Engineering Contradiction:
Improvestorage volumeVSAvoidpropulsion efficiency
Core Design Contradiction:
Volume of moving objectVSProductivity

Solution Approach 1:

The kayak employs inflatable chambers that can be inflated to the appropriate pressure to achieve the correct hydrodynamic shape and structural rigidity for efficient propulsion. The inflation process transforms the compact stored form into the full-performance operational form, ensuring both compact storage and propulsion efficiency are achieved at different times.

Inventive Principle:
Principle #35Parameter changes

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 inflatable kayak provides a compact storage solution while maintaining efficient propulsion capabilities, allowing for easy deployment and use in recreational settings, addressing the storage and transport challenges of traditional kayaks.

Implementation Method 1

An air inflatable watercraft having an inflatable, airtight bow and stern, and having a bottom area between two side inflatable, airtight compartments

Methodology Applied
Scientific EffectAir pressure: Pressure Increase

Implementation Method 2

a human operated propulsion mechanism which can be operated from the cockpit to propel the watercraft

Methodology Applied
Scientific EffectMechanical propulsion: Mechanical Force

Data Source

PatentUS8082871B2Inflatable kayak
Publication Date: 2011.12.27 WHITE RIVER MARINE GROUP LLC
  • US8082871B2 patent drawing
  • US8082871B2 patent drawing
  • US8082871B2 patent drawing

AI summary

An air inflatable watercraft, having a cockpit with a bottom area forming part of the cockpit having a through opening therein adapted to receive a human operated propulsion mechanism which can be operated from the cockpit to propel the watercraft.