Spring-Loaded Safety Stop for Automated Storage Library
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Solution Overview
Problem
Automated data storage libraries face challenges with safety barriers that require manual installation by service personnel, leading to potential safety risks and downtime if not correctly installed, and there is a need for a mechanism that can automatically activate a safety stop to prevent robotic accessors from entering service areas.
Innovation Solution
A spring-loaded safety stop mechanism that automatically activates when the door is opened, moving from a down position to an up position to prevent the robotic accessor from entering the service area, ensuring safety and minimizing downtime by eliminating the need for manual installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a manual safety barrier is installed by service personnel, then safety protection is provided, but installation errors and downtime occur
Solution Approach 1:
The safety barrier system performs self-service by automatically detecting door opening and activating the barrier without human intervention. The door switch senses when the door is opened and automatically triggers the safety barrier to rise, eliminating the need for service personnel to manually install or activate the barrier.
Solution Approach 2:
The safety barrier is pre-positioned in a lowered state during normal operation and automatically activates before service personnel can enter the service area. The door switch detects door opening in advance and triggers the barrier to rise, preventing potential accidents before they can occur.
2Reliability
If a manual safety barrier is installed by service personnel, then safety protection is provided, but installation correctness cannot be guaranteed
Solution Approach 1:
The system eliminates human error in installation by making the safety barrier activation automatic. The door switch and automated mechanism ensure the barrier is always positioned correctly without relying on service personnel to install it properly.
Solution Approach 2:
The door switch provides feedback about door status to the safety barrier control system. When the door is opened, the switch signals the barrier to activate, ensuring the barrier is always in the correct position relative to door state, eliminating installation errors.
3Productivity
If the safety barrier is not installed correctly, then the library can resume operation, but safety exposure occurs
Solution Approach 1:
The safety barrier automatically activates before service personnel can enter the service area or before the robotic accessor can potentially cause harm. The door switch detects door opening and triggers the barrier to rise in advance, preventing safety exposures before they can occur.
Solution Approach 2:
The system applies preliminary anti-action by automatically deploying the safety barrier to counteract any potential harmful movement of the robotic accessor. When the door is opened, the barrier is activated beforehand to prevent the accessor from entering the service area, neutralizing the safety risk before it can materialize.
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 automatic safety stop mechanism ensures safe operation by preventing robotic accessors from crashing into the service area, reducing downtime, and ensuring correct installation every time, thus enhancing safety and efficiency in service operations.
Implementation Method 1
A spring-loaded safety stop mechanism that automatically activates when the door is opened
Data Source
AI summary
A connector has first and second ends. The first end is configured to contact a door of the automated storage library when the door is in at least a first position. A safety stop is connected to the second end of the connector and adapted to move from a down position to an up position. The safety stop is in the down position when the door is in the first position. The connector is adapted to travel in a lateral direction corresponding to a similar movement of the door as the door is opened between the first position and a second position, causing the safety stop to move from the down position to an up position to prevent travel of the robotic accessor beyond the safety stop.