Control Docking Station for Locking Mechanism Safety

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Solution Overview

Problem

There is a need for a controller that can safely control locking engagement between a locking mechanism's male and female members, particularly in safety devices, to prevent safety hazards and ensure safe detachment and reengagement based on sensed conditions.

Innovation Solution

A control docking station system with multiple female members and a male member, where a controller senses unsafe interlock signals and controls locking engagement, using magnetic actuators and electronic switches to allow safe removal and docking of the male member between the female members, with optional visible indications and explosion-proof capabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If locking engagement is controlled manually without automated sensing, then device complexity is reduced, but safety and reliability of locking engagement are compromised

Engineering Contradiction:
Improvesafety of locking engagementVSAvoidcomplexity of control system
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The controller continuously senses the interlock signal from the locking mechanism and automatically controls the magnetic actuator to engage or disengage the locking arms based on the sensed safety conditions. This closed-loop feedback system ensures reliable locking engagement only when safe conditions are detected, eliminating manual judgment errors while maintaining systematic control.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

A magnetic actuator serves as an intermediary between the controller and the locking mechanism. The actuator receives electrical signals from the controller and translates them into mechanical motion to automatically position the locking arms, providing a safe intermediary layer that eliminates direct manual manipulation of the locking components.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If the male member can be detached freely from the female member, then ease of operation is improved, but safety hazards increase due to uncontrolled detachment

Engineering Contradiction:
Improveease of detachmentVSAvoidsafety hazards from uncontrolled detachment
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The controller senses the interlock signal status and automatically controls the magnetic actuator to disengage locking arms only when safe conditions are detected. This feedback-based automatic control allows easy detachment when safe while preventing uncontrolled detachment that could cause safety hazards.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The manual mechanical operation of detaching the male member is replaced with an automated electromagnetic system. The magnetic actuator, controlled by the controller based on sensed conditions, automatically positions the locking arms to enable or prevent detachment, substituting mechanical manual operation with controlled electromagnetic actuation.

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

3Productivity

If multiple locking mechanisms are monitored simultaneously, then productivity is improved, but device complexity increases due to additional sensing and control requirements

Engineering Contradiction:
Improvemonitoring capacityVSAvoidcomplexity of monitoring system
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The controller is designed with universal functionality to monitor and control multiple locking mechanisms simultaneously. A single controller unit can sense interlock signals from multiple sources and control multiple magnetic actuators, providing multi-functionality that increases productivity without proportionally increasing system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The monitoring system is segmented into modular components where each locking mechanism has its own sensing elements and magnetic actuator, but they all interface with a common controller. This segmentation allows independent monitoring of each mechanism while sharing control resources, enabling scalable multi-mechanism monitoring.

Inventive Principle:
Principle #1Segmentation

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 system ensures safe and controlled locking and unlocking of safety devices, allowing multiple workers to be monitored simultaneously, providing visible indications for safe conditions and preventing safety hazards by ensuring locking engagement is only released when conditions are safe.

Implementation Method 1

The system may also include magnetic actuators and corresponding electronic switches that are controlled by the controller when an unsafe interlock signal is interrupted

Methodology Applied
Scientific EffectMagnetic force: Magnetism

Data Source

PatentUS10231518B2Control docking station for one or two stage locking mechanism
Publication Date: 2019.03.19 CONTROL DYNAMICS INC
  • US10231518B2 patent drawing
  • US10231518B2 patent drawing
  • US10231518B2 patent drawing

AI summary

A control docking station system for controlling locking engagement between a first female member and a male member that together form a locking mechanism. The first female member is connected to a safety device. The male member can be locked to and released from the first female member. The system includes a controller configured to sense an unsafe interlock signal. A second female member is operably connected to the controllers housing. Each female member includes a receiver base and a pair of pivoting locking tabs that is engageable with a key-like projection on the male member. The male member may be unlocked from the first female member when the controller senses an interruption to the unsafe interlock signal or if the unsafe interlock signal is overridden. The male member may be docked in the second female member during safe circumstances and/or the safety device is unused.