Inertial Transverse Pushing for Stable Inclined Article Sorting

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Solution Overview

Problem

Existing article sorting facilities face issues where articles rotate or fall down due to excessive forces when the article transverse-pushing body makes contact with the article, especially when the course branches from a straight to an inclined transport direction.

Innovation Solution

The article sorting facility uses inertially moving article transverse-pushing bodies that are accelerated in the width direction to make contact with articles without being guided by an inclined guide body, reducing the force exerted on the articles and minimizing rotation or falling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the article transverse-pushing body is guided by an inclined guide body to advance the article along an inclined transport direction, then the article can be sorted to a branched course, but the article transverse-pushing body receives a reaction force from the inclined guide body causing a large force to act on the article which makes the article rotate or fall down

Engineering Contradiction:

Improvesorting functionVSAvoidarticle rotation or falling

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The article transverse-pushing body is accelerated in the width direction before reaching the sorting region, so that it already has inertial motion capability before contact with the article. This preliminary acceleration allows the pushing body to maintain its motion without relying on reaction forces from guide bodies during the actual sorting contact, thereby preventing excessive force on the article

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent removes the inclined guide body from the system entirely. Instead of using a guide body to constrain and direct the article transverse-pushing body during sorting, the system relies on the inertial motion of the accelerated pushing body to naturally advance the article along the inclined transport direction without contact with guide surfaces, eliminating the harmful reaction forces

Inventive Principle:

Principle #2Taking out (Extraction)

2Productivity

If the article transverse-pushing body moves along the main transport direction together with the article support to make contact with the article, then the sorting can be performed, but the article transverse-pushing body receives a reaction force from the inclined guide body causing excessive force on the article

Engineering Contradiction:

Improvesorting efficiencyVSAvoidcontact force on article

Core Design Contradiction:

ProductivityVSForce

Solution Approach 1:

The article transverse-pushing body is pre-accelerated in the width direction before entering the sorting region, establishing its inertial motion in advance. This allows the body to maintain consistent motion through the sorting action without requiring additional force from guide bodies, thereby controlling the contact force to appropriate levels while maintaining sorting efficiency

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent replaces the mechanical guidance system (inclined guide body) with an inertial motion system. Instead of using mechanical contact and reaction forces from guide bodies to achieve the inclined transport direction, the system uses the inertial motion of the accelerated pushing body to naturally guide the article, substituting mechanical force-based guidance with inertia-based motion

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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

This approach effectively prevents articles from falling or excessive rotation by controlling the force of contact, ensuring stable sorting of articles with varying weights and sizes.

Implementation Method 1

accelerating the article transverse-pushing body in the width direction in the sorting region to inertially move the article transverse-pushing body such that the article transverse-pushing body thus moving inertially is brought into contact with the article

Methodology Applied

Scientific EffectInertia: Inertia

Data Source

PatentUS12448225B2Article sorting method and article sorting facility

Publication Date: 2025.10.21 DAIFUKU CO LTD

AI summary

In a case where an article (A) is advanced along an inclined transport direction (C) by use of an article transverse-pushing body (4) configured to move along a main transport direction (T) and to be movable in a width direction (W) perpendicular to the main transport direction (T), the article transverse-pushing body (4) is accelerated in the width direction (W) in a sorting region (B) and then inertially moved such that the article transverse-pushing body (4) thus moving inertially is brought into contact with the article (A).