Friction Conveyor Coupler with Integrated Tread Attachment

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Solution Overview

Problem

Friction conveyor systems for heavy loads face challenges with high installation and maintenance costs due to the multiplication of drive points, slow conveying speed, and safety issues related to force transmission and following curves, particularly in manufacturing environments where different speeds and vertical curves are required.

Innovation Solution

A hitch system with a continuous tread and integrated attachment members that allow for removably attaching parts around a hinge axis orthogonal to the tread, enabling increased spacing between friction rollers, independent operation of spreaders, and safe force transmission through the tread, allowing for efficient and flexible conveying along vertical and horizontal curves.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If friction rollers are multiplied along the conveyor to drive each beam, then conveying reliability is improved, but installation and maintenance costs increase significantly

Engineering Contradiction:
Improveconveying reliabilityVSAvoidmultiplication of drive points
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple drive functions into a single friction roller by integrating attachment members (hooks or bars) directly into the tread surface. This allows one roller to effectively drive multiple beams simultaneously, reducing the total number of rollers needed while maintaining reliable conveying of each beam

Inventive Principle:
Principle #5Merging (Combining)

2Device complexity

If the spacing between friction rollers is increased to reduce costs, then device complexity is reduced, but the ability to convey longer distances independently is limited

Engineering Contradiction:
Improvenumber of friction rollersVSAvoidspacing distance between rollers
Core Design Contradiction:
Device complexityVSLength of moving object

Solution Approach 1:

The tread is segmented into multiple functional zones with integrated attachment members at different positions. This allows a single roller to engage multiple beams over extended distances, effectively increasing the usable spacing between drive points while maintaining independent conveying capability

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If traditional hook and bar couplings are used to connect trains, then spreaders can be linked together, but force transmission is poor and safety is compromised

Engineering Contradiction:
Improvetrain formation capabilityVSAvoidforce transmission safety
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The coupling mechanism is merged with the drive interface by integrating attachment members into the tread surface. This unified design ensures that force transmission occurs through the same robust interface used for driving, eliminating the weak link of separate couplings and improving safety

Inventive Principle:
Principle #5Merging (Combining)

4Adaptability or versatility

If traditional couplings are used to connect spreaders in a train, then train formation is enabled, but the coupling cannot properly follow vertical curves

Engineering Contradiction:
Improvetrain formation capabilityVSAvoidcurve following capability
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The coupling system is made dynamic through the hinge connection between tread parts, allowing the attachment members to adjust their position relative to each other. This enables the train to follow vertical curves smoothly while maintaining effective force transmission and drive contact

Inventive Principle:
Principle #15Dynamics

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution reduces the multiplication of drive points, enhances safety, and allows for independent speed control of spreaders, increasing conveying efficiency and flexibility, particularly in manufacturing settings like motor vehicle production.

Implementation Method 1

The friction roller, driving the first train, rolls on the crossbar, the friction forces transmitted to the second train then pass through the coupling

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP2477868B1Coupler with attachment members built into the friction tread surface, train and conveyor
Publication Date: 2014.06.25 CINETIC ASSEMBLY
  • EP2477868B1 patent drawingFigure 1~2
  • EP2477868B1 patent drawingFigure 3~4
  • EP2477868B1 patent drawingFigure 5~6

AI summary

The invention relates to a coupler (10) including a tread surface (16) for a friction roller comprising a first portion (12) and a second portion (14); members (20, 40) for removably attaching the first portion (12) of the tread surface to the second portion (14) of the tread surface (16); the tread surface being continuous and the attachment members being built into the tread surface. The invention also relates to a train including cross-bars mutually coupled by a coupler such as described above and to a friction conveyor of the train. The invention is suitable for obtaining a friction conveyor system that is safer and reduces the multiplicity of drive points while guaranteeing the independence of the loads conveyed.