Conveyor Belt Platform Diverter for Gentle Article Sorting

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional diverting conveyors, such as shoe sorters, can damage articles due to high friction and may fail to properly divert small items when the shoe's track does not extend close enough to the conveyor belt, leading to damage or stranding of articles.

Innovation Solution

A conveyor belt design featuring elongated slots with a wider top opening than bottom opening, allowing a carrier with a cam follower and neck to move between raised and lowered positions, supported by guides and ramps, to gently divert articles across the conveyor width without damaging them.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If pusher-type shoes are used to divert articles, then articles can be pushed off the conveyor, but the friction between the bottoms of heavy conveyed articles and the top surface of the conveyor can damage the contact sides of the articles or cause their bottoms to be marred

Engineering Contradiction:
Improvearticle diversion capabilityVSAvoidarticle damage
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent introduces an intermediary mechanism (the diverter belt with platforms) between the pusher shoe and the conveyed articles. Instead of direct contact between the shoe and article, the platform acts as a mediator that gently lifts and redirects articles, eliminating the harmful friction and contact damage caused by traditional pusher-type shoes

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If the shoe's track does not extend close enough to a side of the conveyor belt, then the structure remains simple, but small articles meant to be sorted off the side can be stranded

Engineering Contradiction:
Improvetrack structure simplicityVSAvoidsmall article diversion reliability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent employs a dynamic diverter belt that can be selectively activated to extend the diversion capability close to the conveyor belt side when needed. The diverter belt with its movable platforms provides a dynamic solution that adapts to different diversion requirements, ensuring small articles can be reliably sorted without requiring the track to permanently extend to the extreme edge

Inventive Principle:
Principle #15Dynamics

3Object-affected harmful factors

If a carrier moves between raised and lowered positions to divert articles, then controlled contact is maintained to prevent damage, but the device complexity increases due to the neck and cam follower mechanism

Engineering Contradiction:
Improvearticle damage preventionVSAvoidcarrier mechanism complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent segments the carrier into distinct functional components: the platform for article contact, the neck for vertical movement, and the cam follower for position control. This segmentation allows each component to perform its specific function efficiently, managing the complexity through modular design while achieving the goal of controlled contact and damage prevention

Inventive Principle:
Principle #1Segmentation

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 effectively reduces article damage and ensures proper diversion of both heavy and small items by maintaining controlled contact and alignment, preventing stranding and ensuring smooth operation.

Implementation Method 1

a cam follower below the bottom surface... The cam follower engages a cam surface to move the carrier between the raised position and the lowered position

Methodology Applied
Scientific EffectCam mechanism: Cam

Data Source

PatentEP3820793B1Conveyor-belt platform diverter
Publication Date: 2024.05.22 LAITRAM LLC
  • EP3820793B1 patent drawingFigure 1~3
  • EP3820793B1 patent drawingFigure 4~5
  • EP3820793B1 patent drawingFigure 6~8

AI summary

A belt conveyor having a platform that is movable from a retracted position recessed into a conveyor belt's top surface and an extended position above the top surface. The platform translates across the width of the belt in a slot to carry articles across the width of the belt. Guides in the conveyor below the belt have cam surfaces that raise and lower the carrier and translate it across the belt. The carrier may include a cam-actuated lever to flip articles on the belt or off a side of the belt.