Independent Cart Switch Track for High-Speed Path Selection

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing independent cart systems with linear drive technology face inefficiencies in path selection due to rotary switches and diverter arms, which decrease throughput and require significant time and space for transition, especially in high-speed applications.

Innovation Solution

The implementation of a switch track segment with extendable pins, guide rails, or electromagnets that interact with the mover to selectively direct it along desired paths, reducing the need for the mover to stop and allowing for seamless path changes without the need for extensive clearance or transition time.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a rotary switch is used to change paths, then the mover can be directed along different paths, but the mover must come to a complete stop and wait for the switch to rotate, decreasing throughput

Engineering Contradiction:
Improvepath selection capabilityVSAvoidthroughput
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent replaces the mechanical rotary switch system with an electromagnetic field-based control system. The linear drive system uses electromagnetic coils to propel the mover and guide it along different paths without mechanical contact or rotation, eliminating the need for the mover to stop and the switch to physically rotate.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces electromagnetic fields as an intermediary between the control system and the mover. The electromagnetic field acts as a mediator that can dynamically redirect the mover along different paths by controlling the interaction between the coils and the mover's magnetic components, without requiring mechanical switching mechanisms.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If a diverter arm is used to route objects along different paths, then path selection is possible, but the diverter arm takes time to transition between positions and requires significant clearance space

Engineering Contradiction:
Improvepath selection capabilityVSAvoidtransition time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent replaces the mechanical diverter arm system with an electromagnetic field-based control system. The linear drive system uses electromagnetic coils to propel the mover and guide it along different paths without mechanical contact or rotation, eliminating the need for the mover to stop and the switch to physically rotate.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces electromagnetic fields as an intermediary between the control system and the mover. The electromagnetic field acts as a mediator that can dynamically redirect the mover along different paths by controlling the interaction between the coils and the mover's magnetic components, without requiring mechanical switching mechanisms.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If a diverter arm is used to route objects along different paths, then path selection is possible, but the track must be clear of leading objects before the diverter arm can move, requiring objects to be spaced out significantly

Engineering Contradiction:
Improvepath selection capabilityVSAvoidclearance space required
Core Design Contradiction:
Adaptability or versatilityVSLength of stationary object

Solution Approach 1:

The patent replaces the mechanical diverter arm system with an electromagnetic field-based control system. The linear drive system uses electromagnetic coils to propel the mover and guide it along different paths without mechanical contact or rotation, eliminating the need for the mover to stop and the switch to physically rotate.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces electromagnetic fields as an intermediary between the control system and the mover. The electromagnetic field acts as a mediator that can dynamically redirect the mover along different paths by controlling the interaction between the coils and the mover's magnetic components, without requiring mechanical switching mechanisms.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 solution enhances the throughput and efficiency of path selection in independent cart systems by enabling rapid and continuous movement along desired paths, maintaining high-speed motion and reducing the need for extensive spacing and transition time.

Implementation Method 1

Successive activation of the coils establishes a moving electromagnetic field that interacts with the movers and causes the mover to travel along the track

Methodology Applied
Scientific EffectElectromagnetic field interaction: Electromagnetic Induction

Implementation Method 2

The at least one electromagnet and the at least one magnetically receptive device are configured to selectively direct the at least one mover along either the first path or the second path

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Data Source

PatentUS12103402B2System and method for controlling direction of a vehicle in an independent cart system
Publication Date: 2024.10.01 ROCKWELL AUTOMATION TECH INC
  • US12103402B2 patent drawing
  • US12103402B2 patent drawing
  • US12103402B2 patent drawing

AI summary

A system for selecting one of multiple paths in a linear drive system includes track segments having a first drive member and at least one mover having a second drive member for the linear drive system. Each mover includes a drive surface oriented toward the track segment when the at least one mover is driven along the track. Each mover also includes a first channel and a second channel extending along the drive surface. A switch track segment includes a first path and a second path along which the at least one mover may travel, at least one first pin positioned along the first path, and at least one second pin positioned along the second path. The first and second pins are extendable to engage the first and second channels of the at least one mover to direct the mover along either the first path or the second path, respectively.