Expandable Load-Bearing Assembly With Adjustable H-Frame
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Solution Overview
Problem
Conventional load-bearing assemblies, such as hand trucks and dollies, are inadequate for handling variable load sizes and weights, often requiring complex and expensive designs that are impractical for everyday use, especially in consumer and warehouse settings.
Innovation Solution
A load-bearing assembly featuring an H-shaped frame with expandable T-shaped supports that adjust in length and width, utilizing sliding extensions and channels for versatile load accommodation, combined with a lightweight and sturdy construction, and optionally including motorized wheels for easy movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional hand trucks or dollies are used, then the device structure is simple, but the adaptability to different load sizes and weights is poor
Solution Approach 1:
The patent applies the dynamics principle by making the frame dimensions adjustable rather than fixed. The longitudinal and lateral supports can be extended or retracted to accommodate different load sizes, transforming a static structure into a dynamic one that adapts to varying requirements without requiring multiple different devices.
Solution Approach 2:
The patent implements universality by designing a single load-bearing assembly that can handle multiple types of loads (heavy, bulky, or irregularly shaped) through its adjustable geometry. The expandable supports allow the same device to serve various functions across different应用场景, replacing the need for multiple specialized carts or dollies.
2Adaptability or versatility
If expandable mechanisms are added to accommodate bulky loads, then the adaptability improves, but the device complexity and cost increase
Solution Approach 1:
The patent applies segmentation by dividing the frame into modular components: longitudinal supports, lateral supports, and connecting elements. Each segment can independently extend or adjust, allowing the structure to scale to different sizes. This modular approach enables adaptability while keeping individual components simple and manageable.
Solution Approach 2:
The patent implements the nesting principle by allowing the lateral support to be positioned within or alongside the longitudinal supports. The adjustable geometry enables one support structure to nest or overlap with another, creating a compact configuration when not in use while allowing expansion when needed, thus reducing overall device complexity.
3Strength
If prior art expandable designs are used, then the load-bearing capacity for bulky loads improves, but the ease of operation deteriorates due to tilting requirements
Solution Approach 1:
The patent applies equipotentiality by maintaining a substantially horizontal load-bearing surface regardless of the support configuration. Unlike traditional hand trucks that require tilting to expand, this design keeps the loading platform level, making it as easy to operate and load as a flatbed cart while providing the load-bearing capacity of an expanded structure.
Solution Approach 2:
The patent inverts the conventional approach by expanding the support structure horizontally rather than vertically or through tilting. Instead of raising the load platform to increase capacity, the design extends the supports outward while maintaining the platform's original position and orientation, thereby preserving ease of operation.
4Adaptability or versatility
If adjustable frame designs are implemented, then the versatility for different load sizes improves, but the manufacturing cost and complexity increase
Solution Approach 1:
The patent applies parameter changes by adjusting the geometric parameters (length and width) of the supports rather than changing the material or structural class. The same basic frame components can be configured in multiple dimensions to suit different loads, avoiding the need for multiple specialized parts and reducing manufacturing complexity and cost.
Data Source
AI summary
The present invention is generally a load-bearing assembly that may be expanded so as to increase a surface area on which to support different sized loads. The load-bearing assembly may be constructed with multiple T-shaped frames or housings that register with each other forming a unique H-shaped frame design. The two T-shaped housings register with each other in a manner that facilitates the adjustment of the width of the load-bearing assembly. Extensions enclosed within each housing and extendable at terminal ends of each T-shaped housing extend outwardly from their respective terminal ends to adjust a length of the load-bearing assembly. The load-bearing assembly may be constructed of a light, sturdy metal alloy that is lightweight. Applications include moving inventory inside warehouses or moving furniture or appliances from one location to another.