Transport Module with Wheel Suspension for Flexible Payload Handling

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Solution Overview

Problem

Existing transport systems face limitations in flexibility, payload capacity, and adaptability, with rail-bound systems being inflexible and non-track-bound systems being tall and energy-inefficient, making them unsuitable for production environments.

Innovation Solution

A transport module design that separates load picking, carrying, and moving functions into independent components, using swivel casters for carrying and drive wheels for moving, with a support element for picking, allowing for a compact and adaptable system that can be manually maneuvered and integrated with non-motorized modules.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If a rail-bound transport system is used, then payload capacity is improved (up to 100 tons), but flexibility and adaptability deteriorate (bound to track, impossible to change route)

Engineering Contradiction:
Improvepayload capacityVSAvoidroute flexibility
Core Design Contradiction:
Quantity of substanceVSAdaptability or versatility

Solution Approach 1:

The transport system is divided into independent transport modules that can be individually positioned and controlled. Each module has its own drive unit and support elements, allowing them to operate independently or in coordination. This segmentation enables the system to achieve high payload capacity through multiple modules working together while maintaining flexibility, as each module can navigate independently without being constrained by fixed tracks.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If a non-track-bound transport system with soft-tread wheels is used, then flexibility is improved, but payload capacity deteriorates (limited load-bearing capacity)

Engineering Contradiction:
Improveroute flexibilityVSAvoidpayload capacity
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The invention combines multiple transport modules, each with moderate payload capacity, into a coordinated system that can collectively handle heavy loads (up to 100 tons). The modules work together synergistically, with each module contributing to the total payload capacity while maintaining the flexibility of non-track-bound operation. This merging approach allows the system to achieve both high payload capacity and route flexibility simultaneously.

Inventive Principle:
Principle #5Merging (Combining)

3Quantity of substance

If non-track-bound transport system with large-diameter wheels is used, then payload capacity is improved, but system height increases (making work on object difficult or impossible)

Engineering Contradiction:
Improvepayload capacityVSAvoidsystem height
Core Design Contradiction:
Quantity of substanceVSLength of stationary object

Solution Approach 1:

Instead of using a single large-diameter wheel system, the invention segments the load-bearing function across multiple smaller-wheeled modules. Each module uses compact wheels with sufficient load-bearing capacity when distributed across multiple modules, keeping the overall system height low. This allows work on transported objects to continue during transport while maintaining high payload capacity through the combined effect of multiple modules.

Inventive Principle:
Principle #1Segmentation

4Adaptability or versatility

If air cushion-based transport system is used, then flexibility is improved, but energy consumption increases (unsuitable for regular use)

Engineering Contradiction:
Improveroute flexibilityVSAvoidenergy consumption
Core Design Contradiction:
Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The transport modules use electric motors with regenerative braking capability, allowing them to recover energy during deceleration and reuse it during acceleration. This self-service energy recovery mechanism significantly reduces overall energy consumption compared to air cushion systems, making the system suitable for regular production use while maintaining the flexibility of non-track-bound operation.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP4461628B1Transport vehicle
Publication Date: 2026.01.28 WAGNER PHILIPP
  • EP4461628B1 patent drawingFigure 1
  • EP4461628B1 patent drawingFigure 2
  • EP4461628B1 patent drawingFigure 3~4

AI summary

The invention relates to a transport module (11) for transporting an object (12), particularly in a production line of a technical plant, comprising a support (15), a plurality of swivel casters (17) rotatably mounted on the support (15) about a first vertical axis of rotation (19), and a drive unit (27) with at least one motor-driven drive wheel (29) mounted on the support (15). The transport module (11) can be connected to the object (12) to be transported by means of a support element (34) such that it is rotatable about a second vertical axis of rotation (35) during transport. The at least one drive wheel (29) is attached to the support (15) by means of a wheel suspension (49), wherein the load can be distributed between the swivel casters (17) and the at least one drive wheel (29) by means of the wheel suspension (49) and can be transferred up to 100% to the swivel casters (17).