Amphibious Caravan with Foldable Rotatable Platforms

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Solution Overview

Problem

Existing solutions for converting caravans and vehicles for land-water use are complex and do not allow for equivalent intensive use on both land and water, with difficulties in assembly and disassembly, and limitations in accessibility during transport and water usage.

Innovation Solution

An amphibious caravan design featuring a detachable cuboid housing container attached to a chassis with flexible, rotatable rods and platforms that can fold down to accommodate boats, allowing for easy transition between land and water use, utilizing support wheels and adjustable mechanisms for seamless conversion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If floating bodies are detachably fastened on the roof of the caravan trailer, then the caravan gains buoyancy for water use, but the accessibility of the container is limited during transport state

Engineering Contradiction:
Improveland-water usabilityVSAvoidaccessibility during transport
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The platforms are designed to be movable between different positions - folded up during transport to clear the rear opening, and folded down during water use to provide access. This dynamic reconfiguration allows the same structure to serve different functions in different operational states, resolving the contradiction between water usability and transport accessibility

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The floating bodies are divided into multiple separate platforms that can be independently positioned. The rear platform can be folded up separately from the side platforms, allowing the rear opening to be accessible during transport while the side platforms remain in position for structural support

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If the caravan is converted for water use with floating bodies, then buoyancy is achieved, but the assembly and disassembly process becomes complex

Engineering Contradiction:
Improveamphibious capabilityVSAvoidassembly and disassembly process
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The floating bodies are integrated with the caravan structure through shared attachment points on the chassis. The platforms are combined with the support rods and attachment mechanisms to form a unified conversion system, reducing the number of separate components that need to be assembled and disassembled

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The floating bodies are pre-positioned on the chassis in a ready state, with attachment mechanisms prepared in advance. The platforms are designed to be quickly secured to the chassis using pre-installed attachment points, eliminating the need for complex on-site assembly procedures

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If support wheels are used for land-water transition, then the caravan can be moved onto water, but the transition process requires overcoming friction and precise timing

Engineering Contradiction:
Improveland-water transition capabilityVSAvoidtransition process simplicity
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

Support wheels are introduced as an intermediary element to facilitate the transition between land and water. The wheels provide a mechanical interface that allows the caravan to be rolled onto the floating bodies with reduced friction, making the transition process smoother and more controllable

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The support wheels are positioned and adjusted to create an equipotential transition path between the land-based caravan and the water-based floating bodies. By aligning the wheels at appropriate heights and positions, the transition requires minimal force to overcome friction, making the process easier to execute

Inventive Principle:
Principle #12Equipotentiality

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

Facilitates a simple and efficient land-water transition, enabling multiple uses of the floating bodies while avoiding the complexities of previous solutions, ensuring easy assembly and disassembly without affecting the vehicle's original design or use.

Implementation Method 1

the platforms 8, 10 can be pivoted by 180° around a horizontal axis running along the lower, outer edge relative to the container

Methodology Applied
Scientific EffectRotation:

Implementation Method 2

The device consists of closed, air-filled pontoons, which are adjusted according to the geometry and total weight of the base vehicle

Methodology Applied
Scientific EffectBuoyancy: Archimedes' Principle (Buoyancy)

Data Source

PatentEP3345777B1Amphibious caravan
Publication Date: 2020.03.18 HEIDENREICH BERND
  • EP3345777B1 patent drawingFigure 1
  • EP3345777B1 patent drawingFigure 2
  • EP3345777B1 patent drawingFigure 3

AI summary

The invention relates to an amphibious caravan consisting of a separate living container (1) detachably arranged on a chassis (2), which is equipped on each longitudinal side with platforms (8) that can be accessed later, and on its front and/or rear, which are folded against the container (1) in the driving state and are to be folded down in the water state so that they are locked in a nearly horizontal position at a height such that the container (1) is supported above the waterline, wherein boats of appropriate size and load-bearing capacity, which are used as floats, are detachably attached to the platforms (8 and 10) which are raised in the driving state.that in the water state they support the container in a floating position resting on the water and which can be removed in the folded-down state and are to be used as intended and have additional foldable platforms (12) for the lateral extension of the usable area outside the container in the floating state and for connecting the platforms (8 and 10), which are rotatably mounted on the outer longitudinal edges of the platforms (10) by 180°.