Stowable A-Frame Rack for Dual-Payload Transport

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Solution Overview

Problem

Current glass transportation methods are inefficient and costly due to the need for specialized equipment that can only transport glass in one direction, resulting in wasted trips and labor-intensive loading and unloading processes.

Innovation Solution

A stowable rack system that includes a trailer with a recessed well and pivotable A-frames, allowing the A-frames to switch between upright and stowed positions, enabling the trailer to carry different payloads on the A-frames and the top surface, eliminating the need for loading and unloading and allowing for two-way freight transport.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If glass-holding racks are used for one-way glass transport, then glass delivery is achieved, but return trips are wasted and loading/unloading time is consumed

Engineering Contradiction:
Improvetransport efficiencyVSAvoidloading and unloading time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The A-frames are designed to be movable between upright and stowed positions rather than fixed. This dynamic configuration allows the rack system to adapt between carrying glass on A-frames and carrying other freight on the trailer bed, eliminating the need for separate return trips and reducing loading/unloading time.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The trailer is designed with dual functionality: the A-frames enable glass transport when upright, while the stowed A-frames expose the trailer bed for carrying other freight. This multi-functionality resolves the contradiction by allowing the same equipment to serve multiple purposes, improving productivity without sacrificing glass transport capability.

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

2Reliability

If specialized glass-holding racks are used, then glass transport safety is improved, but adaptability for other freight is reduced

Engineering Contradiction:
Improveglass transport safetyVSAvoidfreight type flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The A-frames transition from a fixed specialized configuration to a dynamic one that can be adjusted or stowed. This allows the system to maintain glass transport safety when needed while becoming adaptable to other freight types when the A-frames are stowed, resolving the contradiction between reliability and adaptability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The rack system is segmented into movable A-frames and the trailer bed. This segmentation allows independent functionality: the A-frames provide specialized glass holding capability while the trailer bed provides general freight capacity, enabling both specialized reliability and general adaptability simultaneously.

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If foldable A-frames are implemented, then stackability increases, but return trip utility remains wasted

Engineering Contradiction:
Improverack stackabilityVSAvoidreturn trip efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The foldable A-frames are integrated with the trailer bed to create a multi-functional system. When stowed, they don't merely increase stackability but actively enable the trailer bed to carry other freight, transforming the return trip from wasted capacity to productive utility.

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

Solution Approach 2:

The A-frame folding mechanism is merged with the trailer bed structure rather than being a separate component. This integration allows the stowed A-frames to work in conjunction with the trailer bed for carrying other freight, combining the benefits of stackability with return trip productivity.

Inventive Principle:
Principle #5Merging (Combining)

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

The system reduces time and costs by allowing trailers to be used for multiple payloads without the need for loading/unloading glass racks, optimizing return trips, and utilizing lighter materials for efficient payload handling.

Implementation Method 1

Each of the A-frames may be connected to the base beam by a hinge and the hinge may be pivotable to move the A-frame between the stowed position and the upright position.

Methodology Applied
Scientific EffectHinge: Hinge

Data Source

PatentUS20240150135A1Stowable rack system for transporting various payloads
Publication Date: 2024.05.09 ENGLISH LOGISTICS INC
  • US20240150135A1 patent drawing
  • US20240150135A1 patent drawing
  • US20240150135A1 patent drawing

AI summary

Provided are stowable rack systems and methods for transporting various payloads. A stowable rack system for hauling various payloads includes a trailer having a body with a top surface and a recessed well and a rack. The rack includes a plurality of A-frames, each A-frame movable between an upright position relative to the top surface of the trailer and a stowed position within the recessed well. When at least two A-frames of the plurality of A-frames are in the upright position the at least two A-frames are operable to carry a first payload. When the plurality of A-frames are in the stowed position the top surface is operable to carry a second payload.