Foldable Cargo Trolley Wall-Mounting System to Prevent Tipping

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Solution Overview

Problem

Load transport trolleys loaded with tools or equipment are prone to tipping over when not being guided or held by a user, posing safety concerns, especially during transportation, and require secure attachment to walls or vehicles to prevent accidents.

Innovation Solution

A foldable cargo transport trolley with adjustable fastening devices that allow secure attachment to walls, enabling safe positioning and transport, and a compact design for easy storage and handling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the load transport trolley is mounted on a wall using adjustable fastening devices, then secure positioning and safe transport are achieved, but the device complexity increases

Engineering Contradiction:
Improvesecure positioningVSAvoidfastening device
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The fastening device incorporates adjustable components that allow dynamic adaptation to different trolley positions and loading conditions. The adjustable nature enables the system to maintain reliability while accommodating variations in trolley configuration without requiring multiple fixed fastening solutions.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The fastening device is designed to serve multiple functions: securing the trolley to the wall, accommodating adjustable positioning, and providing stable support during transport. This multi-functionality reduces the need for separate components, thereby managing complexity while achieving reliable secure positioning.

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

2Ease of operation

If the load transport trolley is designed to be foldable, then ease of storage and handling are improved, but the device complexity increases

Engineering Contradiction:
ImprovestorageVSAvoidfoldable structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The trolley is divided into foldable sections that can be collapsed into a compact configuration for storage. This segmentation allows the structure to be broken down into manageable parts that can be easily stored or transported when not in use, improving ease of operation despite the added complexity of the folding mechanism.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The foldable design incorporates dynamic elements that allow the trolley to transition between extended and collapsed states. This dynamic capability enables easy storage and handling while the mechanism is designed to minimize complexity through straightforward hinge and linkage systems.

Inventive Principle:
Principle #15Dynamics

3Stability of the object's composition

If the load transport trolley is secured to a wall, then stability is improved, but the ease of operation deteriorates due to restricted mobility

Engineering Contradiction:
ImprovestabilityVSAvoidmobility
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The wall-mounted fastening device acts as an intermediary that provides stable support when needed while allowing the trolley to be easily attached and detached. This intermediary system enables the trolley to gain stability during transport or storage without permanently restricting its mobility when required for operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The mounting system is designed to be dynamically adjustable, allowing the trolley to be securely fixed to the wall for stability during transport or storage, and easily released for mobile operation. This dynamic capability resolves the contradiction by providing both stability and mobility as needed.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3820653B1Wall mounting
Publication Date: 2024.04.03 HILTI AG
  • EP3820653B1 patent drawingFigure 1~3
  • EP3820653B1 patent drawingFigure 4A~4E
  • EP3820653B1 patent drawingFigure 5~7

AI summary

Disclosed is the use of a cart for transporting loads, preferably tool cases, as a tray system, said cart being secured to a wall by means of at least one adjustable fastening device that is arranged on the wall.