Utility Cart Layout for Large Coolers on Rough Terrain

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Solution Overview

Problem

Existing utility carts struggle to efficiently transport large ice chests and other heavy items over uneven terrain, often requiring multiple people and trips, and standard wagons can be dangerous or inadequate for this purpose.

Innovation Solution

A utility cart device with a rectangular base, pneumatic tires, handlebars, and D-rings for pulling, featuring an open central area for large coolers and side shelves for additional items, allowing users to push, pull, or tow with a UTV, constructed from aluminum or carbon fiber.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If standard wagons or carts are used to transport heavy items, then transportation capability is improved, but safety deteriorates due to danger over uneven and rough terrain

Engineering Contradiction:

Improvetransportation capabilityVSAvoidsafety

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The cart is divided into multiple independent pneumatic tires positioned at different locations (front, rear, and intermediate positions), allowing each tire to independently absorb shocks from uneven terrain, thereby maintaining safety while preserving transportation capability

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Pneumatic tires are used instead of solid wheels to provide beforehand cushioning against rough terrain impacts, absorbing shocks before they can cause damage or safety issues while maintaining the cart's ability to transport heavy items

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

2Device complexity

If small wheels on ice chest are used, then device simplicity is improved, but mobility deteriorates on rough terrain

Engineering Contradiction:

Improvedevice simplicityVSAvoidmobility

Core Design Contradiction:

Device complexityVSEase of operation

Solution Approach 1:

The cart employs multiple pneumatic tires that can dynamically adapt to rough terrain conditions, with each tire independently responding to surface variations, thereby improving mobility without requiring a completely complex redesign of the basic cart structure

Inventive Principle:

Principle #15Dynamics

3Productivity

If standard wagons are used, then transportation function is improved, but adaptability deteriorates for oversized objects like large ice chests

Engineering Contradiction:

Improvetransportation functionVSAvoidaccommodation capacity

Core Design Contradiction:

ProductivityVSAdaptability or versatility

Solution Approach 1:

The cart design extends in multiple dimensions with a spacious cargo area that can accommodate oversized objects like large ice chests, while maintaining a relatively simple structural footprint through the strategic positioning of pneumatic tires at key locations

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

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

Enables easy maneuvering of oversized objects over rough terrain, providing ergonomic transport solutions for coolers, chairs, and other items to outdoor locations, enhancing convenience and safety.

Implementation Method 1

a pneumatic tire positioned at each corner

Methodology Applied

Scientific EffectPneumatic cushioning: Elasticity

Data Source

PatentUS20260048778A1Utility Cart Device

Publication Date: 2026.02.19 PEREZ GERARDO

AI summary

A utility cart device is disclosed which is capable of transporting heavy objects. The utility cart comprises a base component that is configured in a rectangular shape with a set of handle bars and a pneumatic tire positioned at each corner. Chucks are provided to keep the device in place. The base component has an open central area sized to retain a large ice chest/cooler and two side, shelf-like areas for retaining additional items. Users load the device and push it with the handle bars, or pull it via securing a cable into the two, spaced-apart D-rings on the front of the device, or tow it via a riding mower, golf cart, ATV or other UTV's with a hitch.