Modular Dolly with Detachable L-Shaped Restrain

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Solution Overview

Problem

Existing dollies lack robust lateral support, which can lead to disassembly issues if a corner support is damaged, and they are not adaptable to varying cargo sizes and heights.

Innovation Solution

A dolly design featuring a flat deck with extendable L-shaped restrainers attached via detachable shape couplings, providing lateral support and allowing for the use of standard castors, enabling the dolly to accommodate various cargo sizes and heights by being modular and adaptable.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If corner supports are integrated into the deck structure, then lateral support is improved, but repairability deteriorates because damaged corner supports require major disassembly

Engineering Contradiction:

Improvelateral supportVSAvoidrepairability

Core Design Contradiction:

Stability of the object's compositionVSEase of repair

Solution Approach 1:

The corner support function is segmented from the deck structure by using separate, detachable restrainer elements that can be independently removed and replaced without disassembling the entire dolly structure

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The corner support function is extracted as a separate restrainer component that can be independently attached and detached from the deck, allowing damaged supports to be replaced without major disassembly

Inventive Principle:

Principle #2Taking out (Extraction)

2Stability of the object's composition

If the deck structure is designed for robust lateral support, then stability is improved, but adaptability to varying cargo sizes deteriorates

Engineering Contradiction:

Improvelateral supportVSAvoidadaptability to cargo sizes

Core Design Contradiction:

Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The restrainer positions and configurations can be dynamically adjusted and repositioned along the deck edges to accommodate different cargo dimensions, transforming a static structure into an adaptable one

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The restrainer system serves multiple functions: providing lateral support, accommodating various cargo sizes, and enabling configuration adjustments, making the dolly universally applicable to different transport needs

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Stability of the object's composition

If custom corner supports are integrated into the deck, then lateral support is improved, but device complexity increases due to non-standard components

Engineering Contradiction:

Improvelateral supportVSAvoidcomponent standardization

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The restrainer design serves multiple purposes (lateral support, cargo containment, adaptability) within a single standardized component, reducing overall device complexity while maintaining functionality

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentEP3098136B2dolly

Publication Date: 2021.10.13 K HARTWALL OY AB

Figure 1A~1B
Figure 2
Figure 3

AI summary

According to an example aspect of the present invention, there is provided a robust dolly (1) with sufficient lateral support. The deck (10) of the dolly has a top side (11) with a flat periphery defining a quadrilateral cargo carrying surface. The deck also has a flank (12), which extends from the periphery of the top side so as to create the thickness of the deck. At least one demountable restrainer (20) is attached to the flank such to extend from the flank and to project past the top side for supporting parcelled goods on the deck.