Flat Rack With Intermediate Bulkheads For Cargo Transport

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Solution Overview

Problem

Current marine shipping solutions for transporting non-containerizable cargo, such as construction materials and specialized freight, face challenges in increasing capacity and versatility, particularly due to weight and spatial limitations of existing flat racks, which restrict the amount and type of cargo that can be carried.

Innovation Solution

A flat rack design featuring a cargo platform with terminal and intermediate bulkheads, equipped with lifting points and diagonal braces, allowing for increased carrying capacity and flexibility, with optional configurations for improved stability and maintenance, and the ability to carry two pallets side by side and stack multiple units high.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If traditional flat rack design is used, then structural simplicity is maintained, but carrying capacity and versatility are limited

Engineering Contradiction:
Improvecarrying capacityVSAvoidstructure complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The flat rack is divided into modular sections with intermediate bulkheads that can be positioned at different locations. This segmentation allows the structure to be customized for different cargo types while maintaining overall structural integrity, thereby increasing carrying capacity without requiring a completely new design for each application.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The bulkheads are designed to be movable rather than fixed, allowing them to be repositioned along the cargo platform. This dynamic configuration enables the same flat rack structure to adapt to various cargo dimensions and weights, maximizing versatility and carrying capacity without increasing structural complexity permanently.

Inventive Principle:
Principle #15Dynamics

2Quantity of substance

If flat rack capacity is increased, then more cargo can be carried, but weight limitations are exceeded

Engineering Contradiction:
Improvecargo capacityVSAvoidflat rack weight
Core Design Contradiction:
Quantity of substanceVSWeight of moving object

Solution Approach 1:

Instead of uniformly strengthening the entire flat rack structure, reinforcement is applied locally at specific positions where cargo weight is highest. The intermediate bulkheads are positioned strategically to provide localized support, allowing increased cargo capacity while minimizing overall weight increase.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The flat rack incorporates composite construction techniques combining different materials with complementary properties. For example, using high-strength, low-weight alloys at critical load-bearing points while maintaining lighter materials in non-critical areas, this allows increased capacity without proportional increase in total weight.

Inventive Principle:
Principle #40Composite materials

3Productivity

If intermediate bulkheads are added, then loading efficiency improves, but device complexity increases

Engineering Contradiction:
Improveloading efficiencyVSAvoidbulkhead configuration
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The intermediate bulkheads are designed to serve multiple functions simultaneously: they provide structural support, create loading zones for different cargo types, and serve as attachment points for securing mechanisms. This multi-functionality improves loading efficiency without requiring separate components for each purpose, thereby limiting the increase in overall device complexity.

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

4Ease of operation

If lifting points are positioned at intermediate bulkheads, then crane loading capability is enhanced, but structural integrity may be compromised

Engineering Contradiction:
Improvecrane loading capabilityVSAvoidstructural integrity
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

Lifting points are pre-positioned at the intermediate bulkheads during construction, with reinforcement elements already in place. This preliminary preparation allows crane loading operations to proceed efficiently without requiring additional structural modifications during loading, and the pre-installed reinforcement ensures structural integrity is maintained throughout the lifting process.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS9573725B2Flat rack for transporting cargo
Publication Date: 2017.02.21 OCEANEX
  • US9573725B2 patent drawing
  • US9573725B2 patent drawing
  • US9573725B2 patent drawing

AI summary

A flat rack comprising, a cargo platform for carrying a load, terminal bulkheads for enclosing the cargo platform and two intermediate bulkheads positioned between the terminal bulkheads at equal distance from the center of gravity of the flat rack. Each of the intermediate bulkheads is equipped with lifting points suitable therefore. Optionally, the distance between the intermediate bulkheads is between 20′ and 40′. More specifically, the distance between the intermediate bulkheads may be 34′. A method for loading or offloading a cargo vessel loaded with a plurality of flat racks. The method comprises operating a crane adapted to lift at least one of the plurality of flat racks as described herein above.