Rail-Guided Cart Caster Alignment in Collection Chambers

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Solution Overview

Problem

In delivery systems, aligning carts with freely pivoting casters in a collection chamber is challenging due to their directional freedom, leading to inefficient storage and increased operator workload, and the manual operation of closure doors further burdens operators.

Innovation Solution

A cart alignment device with a rail member that guides and fixes the casters in a predetermined direction, combined with an automatic movement device that reduces operator labor by automatically moving carts and controlling the closure door operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual alignment methods are used, then device complexity is reduced, but alignment precision deteriorates

Engineering Contradiction:
Improvealignment precisionVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

A alignment marker is introduced as an intermediary object between the delivery catheter and the reference catheter. The marker can be visually detected (e.g., fluorescent, radiopaque, or colored) and provides a clear reference point for alignment. The delivery catheter includes a marker holder that positions the alignment marker at a known location, enabling precise alignment through visual detection rather than complex mechanical alignment systems.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The alignment marker may utilize color changes or visual properties (such as fluorescent, radiopaque, or colored markers) to enhance detectability. This allows operators to easily identify and align the marker with reference markings on the delivery catheter, achieving high alignment precision through visual cues rather than complex mechanical systems.

Inventive Principle:
Principle #32Color changes

2Measurement precision

If complex alignment devices are used, then alignment precision is improved, but ease of operation deteriorates

Engineering Contradiction:
Improvealignment precisionVSAvoidease of operation
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The alignment marker serves as a simple intermediary that bridges the alignment process between two catheters. Instead of complex alignment devices, the marker provides a clear visual reference that operators can easily locate and align with reference markings, maintaining ease of operation while achieving high precision.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The alignment system is designed to be self-aligning through visual cues. The alignment marker and reference markings provide intuitive visual feedback that guides operators through the alignment process without requiring complex controls or procedures, making the system easy to operate while maintaining high precision.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If visual alignment methods are used, then ease of operation is improved, but alignment precision deteriorates

Engineering Contradiction:
Improveease of operationVSAvoidalignment precision
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The alignment marker utilizes enhanced visual properties such as fluorescence, radiopacity, or distinct coloring to improve detectability and precision. These visual enhancements allow operators to easily locate and align the marker with reference markings while achieving high alignment precision, overcoming the limitation of simple visual alignment methods.

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The alignment marker acts as a precise intermediary reference object with known geometry and enhanced visual properties. This marker provides a clear, detectable reference point that maintains ease of visual alignment while significantly improving precision through its detectable characteristics and defined spatial relationship to the delivery catheter.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP4201843A1Cart alignment device, delivery system, and control method
Publication Date: 2023.06.28 FUJI CORP
  • EP4201843A1 patent drawingFigure 1
  • EP4201843A1 patent drawingFigure 2
  • EP4201843A1 patent drawingFigure 3A~3B

AI summary

A cart alignment device of the present disclosure is used in a delivery system that delivers an article using a cart including a loading section for loading articles and a caster disposed in the loading section and having wheels capable of changing a movement direction of the loading section. The cart alignment device includes a rail member configured to guide the caster of the cart in a predetermined arrangement direction, and a disposition section configured to dispose and fix the rail member in a collection chamber for accommodating one or more carts.