Modular Bridge Crane with Adjustable Universal Heads

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Solution Overview

Problem

Existing bridge crane systems require complex assembly by professionals and permanent anchoring to the subfloor, which is time-consuming and limits their portability and ease of use, especially for temporary installations.

Innovation Solution

A modular bridge crane system with lightweight aluminum profiles, adjustable universal heads, and counterweights that allow for easy assembly and adjustment without fixed anchoring, enabling quick setup and expansion by non-professionals and allowing for temporary use without subfloor anchoring.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If bridge crane systems are permanently anchored to the subfloor, then stability and reliability are improved, but portability and ease of installation are worsened

Engineering Contradiction:
ImprovestabilityVSAvoidportability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The bridge crane system transitions from a static permanently anchored state to a dynamic adjustable state. The runway supports can be positioned at different locations along the building structure, allowing the crane to be reconfigured and relocated as needed, thus achieving both stability during operation and portability for relocation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The bridge crane system is divided into modular components including bridge girders, runway supports, and connecting elements. This segmentation allows the system to be assembled in sections and relocated by disassembling and reassembling the modular components at different locations without requiring permanent anchoring.

Inventive Principle:
Principle #1Segmentation

2Reliability

If complex assembly procedures are used, then manufacturing precision and reliability are improved, but installation time and device complexity are worsened

Engineering Contradiction:
Improveassembly qualityVSAvoidinstallation time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The bridge crane is segmented into pre-fabricated modular components with standardized connection interfaces. This allows assembly to proceed through simple bolted connections rather than complex welding or custom fitting procedures, significantly reducing installation time while maintaining reliability through standardized connection designs.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Universal connection elements and standardized interfaces are used throughout the bridge crane system, allowing the same assembly procedures and connection methods to be applied across all components. This universality simplifies the assembly process and reduces installation time while ensuring consistent assembly quality across the entire structure.

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

3Reliability

If permanent anchoring to subfloor is required, then stability is improved, but adaptability and ease of relocation are worsened

Engineering Contradiction:
ImprovestabilityVSAvoidrelocation capability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The runway supports are designed to be positionable at multiple locations along the building structure rather than being permanently fixed. This dynamic positioning capability allows the crane to be relocated and reconfigured as operational needs change, providing adaptability while maintaining stability during each installation phase.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The runway supports act as intermediary elements between the building structure and the bridge crane. They provide stable support for the crane while being themselves relocatable along the building structure, thus mediating between the need for stability and the need for relocation capability.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Ease of operation

If modular design with adjustable components is used, then ease of assembly and adaptability are improved, but manufacturing complexity and device complexity are worsened

Engineering Contradiction:
Improveease of assemblyVSAvoidmodular component complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The bridge crane is divided into standardized modular components with simple bolted connections. While this segmentation increases the number of parts, each component is designed to be relatively simple in structure, and the overall system complexity is managed through standardized interfaces and assembly procedures that simplify installation.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3495309B1Bridge crane installation
Publication Date: 2021.07.07 IWS SYST GMBH
  • EP3495309B1 patent drawingFigure 1
  • EP3495309B1 patent drawingFigure 2
  • EP3495309B1 patent drawingFigure 3

AI summary

Crane system, in particular a bridge crane system, with at least one horizontally extending crane girder movable on or along parallel tracks arranged at a distance from each other, on which a crane trolley with a hoist is movable, wherein the crane system (1) is constructed according to the modular principle and is essentially formed from a bridge girder (4) with crane trolley and hoist as well as a basic framework, wherein the basic framework consists of the support columns (2) with the slid-on universal heads (7), the tracks (3) and the crossbeams (5) and these can be connected to each other by means of screw connections.