Rail Derailer Geometry for Higher-Speed Portable Installation

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Solution Overview

Problem

Existing derailing devices are limited to derailing vehicles traveling at low speeds, which restricts operational efficiency and increases transportation inefficiencies, and increasing device size to handle higher speeds compromises portability and integrity.

Innovation Solution

A derailer device with a wheel deflecting surface angled at less than 13 degrees and multiple clamping mechanisms, allowing vehicles to be derailed at higher speeds while maintaining portability, and an electronic communication unit for remote monitoring.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If the derailing device size is increased to handle higher vehicle speeds, then the maximum derailing speed is improved, but device portability deteriorates

Engineering Contradiction:
Improvemaximum derailing speedVSAvoiddevice portability
Core Design Contradiction:
SpeedVSWeight of moving object

Solution Approach 1:

The base is divided into multiple segments with clamping mechanisms spaced apart, allowing the device to be constructed from modular components that can be transported and assembled separately, improving portability while maintaining the structural integrity needed for higher speed operations

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The clamping mechanisms are positioned along the longitudinal axis of the base rather than concentrating mass at a single location, distributing the structural requirements across multiple points and enabling a lighter overall design that maintains strength for higher speed derailing

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

2Speed

If the derailing device size is increased to handle higher vehicle speeds, then the maximum derailing speed is improved, but device integrity deteriorates

Engineering Contradiction:
Improvemaximum derailing speedVSAvoiddevice integrity
Core Design Contradiction:
SpeedVSStrength

Solution Approach 1:

Dividing the base into segments with spaced clamping mechanisms creates a distributed structural system where each segment contributes to overall integrity, allowing the device to withstand higher speed impacts without requiring a monolithic heavy structure

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each clamping mechanism is designed with specific local structural properties optimized for its position, allowing the device to achieve high-speed handling capability through localized strength enhancements rather than uniformly increasing overall device mass

Inventive Principle:
Principle #3Local quality

3Reliability

If vehicle speed is limited to maintain device effectiveness, then device reliability is improved, but transportation efficiency deteriorates

Engineering Contradiction:
Improvedevice effectivenessVSAvoidtransportation efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The wheel deflecting surface angle is optimized to less than or equal to 13 degrees, a specific parameter change that enables the device to effectively derail vehicles at higher speeds (up to 24 km/h) while maintaining reliability, thereby removing the speed limitation that previously reduced transportation efficiency

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12539899B2Derailing system
Publication Date: 2026.02.03 WESTINGHOUSE AIR BRAKE TECH CORP
  • US12539899B2 patent drawing
  • US12539899B2 patent drawing
  • US12539899B2 patent drawing

AI summary

A derailing system includes a derailer device and an electronic communication unit. The derailer device includes a directional derail block extending from a base and including a wheel deflecting surface arranged at an angle less than or equal to about 13 degrees with regard to a longitudinal axis of the track and designed to deflect the wheel away from the track. The electronic communication unit is configured for attachment to the derailer device and to communicate location data of the derailer device and/or installation status data of the derailer device to a remote computing unit.