Motorized Beach Cart with Collapsible Frame and Tilting Mechanism
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Solution Overview
Problem
Conventional beach carts are cumbersome, difficult to maneuver on soft sandy terrain, and require excessive effort to transport beach items, as they often embed into the sand and necessitate multiple trips, lacking a motorized and collapsible design that is resistant to sand and water.
Innovation Solution
A motorized beach cart with a collapsible frame, swivel wheels, and a removable drive assembly featuring an electric motor, USB charging, and adjustable speed and direction controls, designed for easy transport and operation on sandy surfaces, with protective casing for the motor and wheels to withstand environmental conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If conventional beach carts are used to transport beach items, then the cart can carry multiple items, but the wheels embed into soft sand requiring significant pushing or pulling force
Solution Approach 1:
The patent changes the physical parameters of the wheel contact with sand by using a tilting mechanism that allows the cart to lean into the sand, distributing the load across a larger area and preventing wheel embedding. This parameter change in the cart's orientation and weight distribution resolves the contradiction by reducing the force needed to move the cart while maintaining ease of operation on soft sand terrain.
Solution Approach 2:
The patent introduces dynamic elements including a tiltable cart body that can adjust its angle relative to the ground, and a motorized drive system that automatically adjusts to terrain conditions. This dynamic adaptation allows the cart to maintain optimal contact with the sand surface, reducing embedding and pushing force requirements while preserving maneuverability.
2Stability of the object's composition
If a rigid frame beach cart is used, then the cart provides structural stability, but it becomes bulky and difficult to transport in a vehicle
Solution Approach 1:
The patent segments the cart frame into collapsible sections that can be folded or disassembled for compact storage in vehicles, while maintaining structural stability during use through interlocking mechanisms and reinforced joints. This segmentation allows the cart to transition between a compact transport state and a stable operational state.
Solution Approach 2:
The patent employs a dynamic frame structure that transitions from a rigid, stable configuration during beach use to a collapsed, compact configuration for vehicle transport. This dynamic transformation resolves the contradiction by providing both structural stability when needed and ease of transport when required.
3Ease of operation
If a two-wheeled cart is used, then the cart is easier to maneuver on hard surfaces, but the tires have insufficient surface area to prevent sinking into soft sand
Solution Approach 1:
The patent changes the contact parameters between the cart and sand by implementing a tilting mechanism that increases the effective contact area of the wheels with the sand surface. This parameter change in weight distribution and contact angle reduces the pressure on individual wheels, preventing sinking while maintaining maneuverability.
Solution Approach 2:
The patent uses the cart's own weight strategically through its tilting mechanism to press the wheels into the sand at optimal angles, creating a counterbalancing effect that prevents sinking. The motorized system adjusts the tilt to distribute weight effectively, reducing the force needed to prevent wheel embedding while preserving ease of maneuvering.
4Ease of operation
If a manually controlled cart is used, then the cart can be steered, but it requires multiple trips and excessive user exertion to transport heavy loads
Solution Approach 1:
The patent replaces the manual mechanical steering and propulsion system with an electric motorized drive system that provides automated propulsion while maintaining steering control. This substitution eliminates the need for multiple trips by providing sufficient power to transport heavy loads in a single trip, significantly reducing time loss while preserving steerability through electronic control systems.
Solution Approach 2:
The patent creates a multi-functional system that combines motorized propulsion, electronic steering control, and terrain-adaptation capabilities in a single integrated platform. This universal system resolves the contradiction by providing both steerability and the power needed to transport heavy loads efficiently in one trip, eliminating the need for multiple trips and excessive user exertion.
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 motorized beach cart efficiently and effortlessly transports beach items across sandy terrain, reducing user exertion and the need for multiple trips, while being easy to transport in vehicles and resistant to sand and water, providing a safe and efficient solution for beach outings.
Implementation Method 1
Each hub motor drive wheel (162) has an electric wheel motor internally disposed within the wheel. Each electric wheel motor includes a rotor assembly coupled with a stator configured to drive the rotor assembly.
Data Source
AI summary
The present disclosure provides a motorized beach cart for transporting beach necessities. The motorized beach cart includes a collapsible frame and a handle is hingedly connected to the collapsible frame. The motorized beach cart includes a battery electrically wired to an electric motor disposed within a protective casing, and at least a first USB port is provided within an exterior wall of the protective casing. A drive assembly is disclosed which is adapted to removably connect to a back end of a beach cart.