Conveyor Roller Guard Structure for Stable Finger Gap Protection

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Solution Overview

Problem

Conventional guard apparatuses for conveyor systems fail to effectively prevent finger injuries from gaps between rollers, are prone to deformation, and lack lateral security, leading to noise and partial inoperability.

Innovation Solution

A guard apparatus with a top cover and flanges that secure laterally and longitudinally between rollers and side frames, featuring a T-shaped configuration and friction-reducing elements, made integrally from lightweight polymer to enhance stability and reduce friction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional guard apparatuses are used to cover gaps between rollers, then finger injury protection is provided, but the apparatus deforms and generates noise due to lack of lateral security

Engineering Contradiction:
Improveprotection effectivenessVSAvoidapparatus stability
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The guard apparatus extends laterally beyond the roller gap in the horizontal dimension, with flanges that reach into the gaps between rollers and between rollers and side frames. This lateral extension provides security anchoring points that prevent deformation and noise, while maintaining the protective function over the roller gap.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The guard apparatus is divided into multiple functional segments: a top cover portion for protecting the roller gap, and flange portions for lateral security anchoring. Each segment performs its specific function, with the flange portions providing stability and the top cover providing protection, resolving the contradiction between protection effectiveness and stability.

Inventive Principle:
Principle #1Segmentation

2Area of stationary object

If conventional guard apparatuses are used, then roller gap coverage is achieved, but lateral security is lacking leading to partial inoperability

Engineering Contradiction:
Improveguard coverage areaVSAvoidoperational reliability
Core Design Contradiction:
Area of stationary objectVSReliability

Solution Approach 1:

The flange portions extend laterally into the gaps between rollers and between rollers and side frames, creating anchoring points in the horizontal dimension. This lateral security prevents the guard apparatus from shifting or becoming dislodged, ensuring operational reliability while maintaining comprehensive coverage.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Object-affected harmful factors

If conventional guard apparatuses are used, then finger protection is provided, but friction increases causing noise and deformation

Engineering Contradiction:
Improvefinger injury riskVSAvoidnoise and deformation
Core Design Contradiction:
Object-affected harmful factorsVSObject-generated harmful factors

Solution Approach 1:

The top cover portion is specifically designed with a smooth surface finish in the region that contacts the rollers, reducing friction and preventing deformation. This localized quality improvement addresses the harmful friction effect while maintaining the overall protective function against finger injuries.

Inventive Principle:
Principle #3Local quality

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 apparatus provides effective protection against finger injuries, reduces noise, and enhances durability by securing the guard apparatus to the conveyor system, thereby extending its usable life and reducing manufacturing costs.

Implementation Method 1

The top cover defines a plurality of friction-reducing features proximal to at least one roller of the conveyor system

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS12473152B2Guard apparatus for a conveyor system
Publication Date: 2025.11.18 INTELLIGRATED HEADQUARTERS LLC
  • US12473152B2 patent drawing
  • US12473152B2 patent drawing
  • US12473152B2 patent drawing

AI summary

Various embodiments are directed to a guard apparatus for a conveyor system. The conveyor system comprises a plurality of rollers rotatably disposed between a pair of side frames of the conveyor system. The guard apparatus comprises a top cover and a first flange. The top cover is disposed in a first gap formed between a first roller and a second roller of the plurality of rollers. The first flange extends from a first end of the top cover into a second gap formed between a first end face of the first roller, a second end face of the second roller and a corresponding side frame of the conveyor system.