Hovercraft Direction Control Device with Extendable Wheel and Blade
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Solution Overview
Problem
Conventional hovercraft lack precise directional control, especially in confined spaces and adverse weather conditions, due to their reliance on propeller direction changes and lack of surface contact, which complicates maneuvers and increases operational difficulty and safety risks.
Innovation Solution
A direction control device for hovercraft featuring a housing with a wheel and blade system that can extend and retract to contact the surface, providing rolling and sliding friction for improved stability and directional control, allowing the hovercraft to steer without altering the propeller direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If hovercraft change direction by rotating the propelling device, then directional control is achieved, but the maneuver becomes complex and imprecise due to sliding and over-rotation
Solution Approach 1:
The patent introduces an intermediary mechanism (skid or contact member) that touches the ground to assist in directional control. This intermediary element provides a reference point for rotation and reduces uncontrolled sliding, making steering maneuvers more precise and less complex without requiring propeller direction changes alone
Solution Approach 2:
The patent changes the operational parameters by introducing controlled friction through ground contact. By adjusting the hovercraft's height above ground and controlling when the skid contacts the surface, the system transitions between frictionless hovering and controlled friction-based steering, improving directional precision
2Productivity
If hovercraft operate without surface contact, then low friction and easy movement are achieved, but directional control precision deteriorates in confined spaces
Solution Approach 1:
The patent implements a dynamic system where the hovercraft can switch between two operational states: hovering without contact for efficient travel, and contacting the ground via skid for precise directional control. The system dynamically adjusts height and contact based on operational requirements, combining the advantages of both approaches
3Ease of operation
If propelling device is turned to stop craft rotation, then directional alignment is achieved, but the maneuver requires over-rotation and reduces operational safety
Solution Approach 1:
The patent applies preliminary action by having the skid contact the ground before full rotation occurs. This initial contact provides immediate rotational resistance and establishes a pivot point, preventing uncontrolled over-rotation and improving operational safety by reducing the corrective maneuvers needed
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
Enhances the hovercraft's ability to make precise turns and maintain course, reducing the impact of wind and improving safety and operational ease in various terrains and conditions by providing additional frictional resistance.
Implementation Method 1
A direction control device for hovercraft featuring a housing with a wheel and blade system that can extend and retract to contact the surface, providing rolling and sliding friction for improved stability and directional control
Implementation Method 2
A direction control device for hovercraft featuring a housing with a wheel and blade system that can extend and retract to contact the surface, providing rolling and sliding friction for improved stability and directional control
Data Source
AI summary
A direction control device includes a housing, a wheel shaft supported by the housing, a wheel supported by the wheel shaft, a blade shaft supported by the housing, and a blade mounted on the blade shaft. The housing has a first side and a longitudinal axis. The wheel shaft has a wheel axis and is configured to extend beyond the first side outside the housing. The wheel has a rotational axis and is configured to rotate about the rotational axis. The blade shaft is configured to extend beyond the first side outside the housing.