Modular Idler Roller Assembly for Custom Length and Low Inventory

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Solution Overview

Problem

Conventional idler rollers for conveyor systems are costly to stock due to unpredictable demand, require extensive inventory, and are difficult to customize, leading to inefficiencies in inventory management and potential damage to conveyor belts.

Innovation Solution

A modular idler roller system using solid or molded plastic discs with recessed ends and adaptable shafts, allowing assembly with minimal machinery, enabling quick customization and efficient inventory management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional steel tube idler rollers with ball bearings are stocked in multiple sizes and specifications, then demand requirements can be met, but inventory costs and complexity increase significantly

Engineering Contradiction:

Improveability to meet diverse idler roller demand specificationsVSAvoidinventory management complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The idler roller is divided into separate modular components: a standard shaft, end pieces, and plastic discs. These segments can be independently stocked in limited standard sizes and then assembled to create custom-length rollers, eliminating the need to inventory every possible roller configuration.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The standard shaft and end piece components serve multiple functions across different roller configurations. A single shaft design can accommodate various disc combinations to create different roller lengths and specifications, making the component universal across multiple applications.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Manufacturing precision

If custom idler rollers are produced to meet specific demand, then exact specifications are achieved, but production time and cost increase

Engineering Contradiction:

Improveidler roller specification accuracyVSAvoidproduction lead time

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

The critical components (shafts, end pieces, and plastic discs) are pre-manufactured to precise standard specifications and stocked in inventory. When a custom roller is needed, these pre-made components are simply assembled rather than manufactured, achieving both precision and speed.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Instead of manufacturing custom rollers from scratch, the system uses standardized copies of core components that can be recombined. The plastic discs are identical standardized parts that can be copied and assembled in different quantities to create various roller lengths without custom manufacturing.

Inventive Principle:

Principle #26Copying

3Strength

If traditional steel tube idler rollers are used, then structural strength is maintained, but potential for belt damage from worn parts with sharp edges increases

Engineering Contradiction:

Improveroller structural strengthVSAvoidconveyor belt damage from sharp edges

Core Design Contradiction:

StrengthVSObject-affected harmful factors

Solution Approach 1:

The roller uses a composite construction combining a strong steel shaft for structural integrity with plastic discs for the contact surface. This composite approach maintains the necessary strength while eliminating the sharp edge problem associated with all-steel rollers.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

Different materials are used in different parts of the roller: steel for the shaft where strength is critical, and plastic for the disc surfaces that contact the conveyor belt where smooth, non-damaging contact is critical. Each part has the local quality needed for its specific function.

Inventive Principle:

Principle #3Local quality

4Adaptability or versatility

If extensive inventory of different idler roller sizes is maintained, then all potential demands can be fulfilled, but storage space and capital tied up in inventory increase

Engineering Contradiction:

Improveability to fulfill diverse roller demandsVSAvoidinventory quantity and storage requirements

Core Design Contradiction:

Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

By segmenting the roller into standardized components, the inventory requirement shifts from stocking complete assembled rollers in every possible configuration to stocking a limited set of interchangeable parts that can be combined to fulfill any demand.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system changes the key parameter from roller length (which would require infinite inventory variations) to the number of plastic disc units. By standardizing all components and varying only the quantity of discs assembled, the inventory requirement becomes manageable while maintaining the ability to fulfill any length demand.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20260062225A1Modular idler roller system with recessed and/or adaptable ends

Publication Date: 2026.03.05 ASTRIA CAPITAL LLC

AI summary

A modular roller system. The system includes a mechanical shaft and at least one plastic disc. The one or more the discs may include a recessed end abutting one side of the plastic disc. The system also includes an assembly in physical contact with the recessed end and positioned in an inside of the recessed end. The one or more discs slide onto and around the mechanical shaft using frictionless bearing system.