Conveyor Belt Link Rod Retention via Flexible Projection

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Solution Overview

Problem

Conveyor belt systems face issues with connecting rod retention, leading to unintended lateral movement and disassembly during assembly or operation, resulting in increased assembly time and operational disruptions.

Innovation Solution

Incorporating flexible projections in conveyor belt links that can deflect to allow or prevent the insertion and removal of connecting rods, ensuring secure retention within the belt structure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If no retention feature is used, then the connecting rod can be easily inserted and removed, but the rod may laterally move and slide out of the aperture causing disassembly

Engineering Contradiction:
Improveease of rod insertion and removalVSAvoidrod retention stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The projection is designed to be flexible rather than fixed, allowing it to dynamically change position between blocking (retention mode) and non-blocking (insertion mode) states. This dynamic characteristic enables the same structure to provide both easy insertion and secure retention.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The projection's position parameter changes from blocking the aperture opening to allowing passage. By changing the spatial parameter of the projection, the system transitions between retention and insertion states without requiring structural modification.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If a rigid retention feature is used, then the rod is securely retained, but the assembly time increases due to difficulty in inserting and removing the rod

Engineering Contradiction:
Improverod retention stabilityVSAvoidassembly time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The flexible projection can be temporarily moved out of the way during insertion, then returns to its blocking position to provide retention. This dynamic behavior eliminates the time penalty associated with rigid retention features while maintaining security.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The projection automatically returns to its retention position after being moved during insertion, providing self-service retention without requiring additional locking actions or tools from the operator.

Inventive Principle:
Principle #25Self-service

3Reliability

If the projection always blocks the aperture, then the rod is retained, but the rod cannot be inserted or removed

Engineering Contradiction:
Improverod retention stabilityVSAvoidease of rod insertion and removal
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The projection transitions from a static blocking structure to a dynamic element that can be temporarily displaced. This allows the aperture to be opened for insertion while automatically closing for retention, resolving the contradiction between blocking and accessibility.

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 flexible projections effectively prevent the connecting rod from being removed during assembly or operation, reducing assembly time and maintaining belt integrity by securely retaining the rod within the conveyor belt system.

Implementation Method 1

a resilient projection extending in a longitudinal direction from the front side or the rear side of the retention cage into the interior portion of the retention cage. The resilient projection may be configured to, in a first undeflected position, prevent insertion and removal of a connecting rod through the opening and, in a second deflected position wherein the projection is deflected in a direction perpendicular to the substantially lateral direction, the projection allows insertion and removal of a connecting rod through the opening

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS8636141B2Conveyor belt link with rod retaining feature
Publication Date: 2014.01.28 ASHWORTH BROS INC
  • US8636141B2 patent drawing
  • US8636141B2 patent drawing
  • US8636141B2 patent drawing

AI summary

The present disclosure is directed to a pitch for a modular conveyor belt. In some embodiments, the pitch may include a link having a first leg, including an opening formed in the first leg. The opening may be defined by a first edge, a second edge opposite the first edge, a first side edge, and a second side edge opposite the first side edge. In addition, the pitch may include a projection associated with the first edge. In a first position, the projection may extend substantially perpendicularly away from the first edge towards the second edge so that a free end of the projection is positioned proximate the second edge. Also, the projection may be configured to deflect to a second position, in which the free end of the projection is deflected within the opening towards one of the first side edge and the second side edge.