Refrigerator Box and Method of Using Same

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Solution Overview

Problem

Existing ramp systems for trailers and containers require disengagement when the doors are opened and closed, disrupting the loading and unloading process.

Innovation Solution

A stand-alone refrigerator box with a built-in ramp that is movable between a stowaway position and an angled position, allowing continuous use without disengaging the ramp during door operations, utilizing a head frame, articulating arms, and hooks to maintain the ramp's position.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the ramp is disengaged while the refrigerator door is opened and closed, then the door can be accessed freely, but temperature control deteriorates and heat exchange increases

Engineering Contradiction:

Improvedoor accessibilityVSAvoidtemperature control

Core Design Contradiction:

Ease of operationVSTemperature

Solution Approach 1:

The ramp is designed to be movable between a stowaway position within the refrigerator box and an angled position extending outward. This dynamic positioning allows the ramp to be retracted during door operations and extended during loading/unloading, resolving the contradiction between door accessibility and temperature control by ensuring the ramp does not obstruct door movement while maintaining its functional position when needed

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The ramp assembly is segmented into movable and fixed components, with the ramp itself being separable from the door structure. This segmentation allows the ramp to be independently positioned - stored within the box when the door needs to open freely, and deployed outward when loading/unloading is required, thus eliminating the conflict between door operation and ramp functionality

Inventive Principle:

Principle #1Segmentation

2Productivity

If the ramp is kept in use position, then loading and unloading is facilitated, but the refrigerator door cannot be opened and closed

Engineering Contradiction:

Improveloading and unloading efficiencyVSAvoiddoor operation

Core Design Contradiction:

ProductivityVSEase of operation

Solution Approach 1:

The ramp incorporates a movable design that transitions between a stowaway position (flush with or inside the refrigerator box) and an angled deployment position. This dynamic capability allows the ramp to be positioned out of the door's path during door operations, enabling both continuous door access and uninterrupted loading/unloading productivity depending on operational needs

Inventive Principle:

Principle #15Dynamics

3Ease of operation

If the ramp is disengaged repeatedly, then door access is maintained, but time is lost and operational efficiency decreases

Engineering Contradiction:

Improvedoor accessVSAvoidoperational time

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The ramp system is segmented into distinct positional states (stowaway and deployed) with mechanisms to maintain each state. This segmentation eliminates the need for repeated engagement/disengagement cycles, as the ramp can remain in the stowaway position during door operations without requiring active disengagement, thereby reducing operational time loss while maintaining door accessibility

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS20240327146A1Refrigerator Box and Method of Using Same

Publication Date: 2024.10.03 HAVENER ENTERPRISES

AI summary

A stand-alone, all-in-one refrigerator box and, more particularly, to a refrigerator box that provides a built-in ramp that is moveable between a stowaway position and an angled position in connection with the refrigerator box for loading and unloading the refrigerator box without having to disengage the ramp while the refrigerator door is being opened and closed.