Combined Cart with Adjustable Rails for Bulk Goods

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Solution Overview

Problem

Warehouse retail stores typically require two separate carts for carrying bulk goods, a lumber cart and a flatbed cart, which increases inventory and operational costs and inefficiencies.

Innovation Solution

A combined cart design that integrates the functions of both, featuring a flat platform with upstanding rails and casters, allowing for the transportation of long goods like lumber and enabling easy stacking of boxes, while preventing goods from sliding off during abrupt stops.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If two separate carts (lumber cart and flatbed cart) are used to carry different types of bulk goods, then the cart can be specialized for specific goods, but the fleet size and operational costs increase

Engineering Contradiction:
Improvecart specializationVSAvoidoperational efficiency
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The cart is designed with a universal platform that can handle both lumber and boxed goods through configurable side rail assemblies. The side rails can be positioned or removed to accommodate different cargo types, allowing a single cart design to replace multiple specialized carts in the fleet.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The invention merges the functions of lumber carts and flatbed carts into a single unified cart design. By integrating features from both cart types (platform structure, side rails, casters), the patent creates a multi-functional cart that performs both specialized functions simultaneously.

Inventive Principle:
Principle #5Merging (Combining)

2Productivity

If a combined cart design is used to reduce fleet size, then operational efficiency improves, but the cart structure becomes more complex

Engineering Contradiction:
Improveoperational efficiencyVSAvoidcart structure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The cart structure is divided into modular components including the platform, side rail assemblies, cross members, and caster assemblies. These segmented components can be independently configured, adjusted, or removed based on cargo requirements, simplifying the overall structure while maintaining versatility.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The side rail assemblies are designed to be dynamically adjustable rather than fixed. The rails can be repositioned along the platform or removed entirely depending on whether lumber or boxed goods are being transported, allowing the cart structure to adapt its complexity to match the specific cargo type.

Inventive Principle:
Principle #15Dynamics

3Stability of the object's composition

If side rails are added to prevent goods from sliding off during abrupt stops, then cargo stability improves, but the loading efficiency may be reduced

Engineering Contradiction:
Improvecargo stabilityVSAvoidloading efficiency
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The side rails are designed as movable and adjustable components rather than fixed barriers. They can be positioned at different heights and locations, or removed entirely when not needed, allowing quick configuration changes that maintain cargo stability when required while preserving loading efficiency when rails are not in the way.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS11383747B2Cart
Publication Date: 2022.07.12 BALLYMORE CO INC
  • US11383747B2 patent drawing
  • US11383747B2 patent drawing
  • US11383747B2 patent drawing

AI summary

A cart includes a planar platform for holding bulk goods. The platform includes first and second oppositely disposed ends and first and second oppositely disposed sides, a top surface and an underside. One or more casters or wheels attached to the platform to facilitate mobility; anda plurality of upstanding rails extend from the platform at one or both ends of the cart.