Cargo Container Spreader for Collapsible Unit Folding

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

The shipping industry faces inefficiencies and increased costs due to the need to transport empty cargo containers, which occupy valuable space and require specialized handling equipment, as conventional spreaders are not designed to handle collapsible containers.

Innovation Solution

A specialized cargo container lifting device, or spreader, with integrated motors, actuators, and levers that assists in the folding and unfolding of collapsible containers, reducing the need for costly modifications to the containers themselves and enabling efficient space utilization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional spreaders are used to lift containers, then standard containers can be handled efficiently, but collapsible containers cannot be handled and require specialized equipment

Engineering Contradiction:
Improvecompatibility with collapsible containersVSAvoidspecialized spreader design
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The spreader is designed with multi-functionality to handle both standard and collapsible containers. It incorporates adjustable components and universal engagement mechanisms that allow it to adapt to different container types, eliminating the need for separate specialized equipment while maintaining efficiency across various container configurations.

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

2Volume of moving object

If empty containers are transported in normal configuration, then they occupy valuable space, but collapsing them requires specialized equipment and infrastructure

Engineering Contradiction:
Improvespace occupancy of empty containersVSAvoidcollapsing mechanism complexity
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The collapsing mechanism is merged with the spreader system rather than being a separate container feature. The spreader integrates motors, actuators, and levers that work in conjunction with the container's structural elements to enable collapsing, simplifying the overall system while achieving the space-saving benefit.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The spreader acts as an intermediary device between the handling equipment and the collapsible container. It provides the necessary mechanical interface and control mechanisms to safely and efficiently collapse and expand containers without requiring modifications to the container itself or complex integrated systems.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Loss of energy

If containers are collapsed to reduce space, then shipping costs decrease, but handling and operational complexity increases

Engineering Contradiction:
Improveshipping cost efficiencyVSAvoidcontainer handling operation
Core Design Contradiction:
Loss of energyVSEase of operation

Solution Approach 1:

The container folding mechanism is designed to be self-service through automated control. The spreader's integrated motors and actuators automatically perform the collapsing and expanding operations based on simple control signals, eliminating the need for complex manual procedures while achieving space efficiency.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Manual mechanical operations are replaced with automated motorized systems. The spreader incorporates motors and actuators that automatically control the collapsing process, replacing what would otherwise require complex manual mechanical procedures and reducing operational complexity despite the advanced technology involved.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS7722101B2Cargo shipping container spreader and method
Publication Date: 2010.05.25 GENFLAT HOLDINGS INC
  • US7722101B2 patent drawing
  • US7722101B2 patent drawing
  • US7722101B2 patent drawing

AI summary

An apparatus and method for lifting and collapsing a collapsible cargo container includes a frame, and vertical guides for aligning the spreader with the cargo container. First and second pusher assemblies engage the end walls of the container to pivot the end walls against the ceiling of the container, where uplocks retain the end walls in a stowed away position. Foldable side walls are then buckled by the weight of the ceiling with assistance from the spreader, until the side walls occupy a predominantly horizontal position between the ceiling/end wall combination and a floor of the cargo container, resulting in a compact configuration. The spreader unfolds the container using steps discussed above in a reverse order.