Two Door Interlock Mechanism for Imaging Device
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Solution Overview
Problem
Imaging devices face downtime and costly repairs due to improper closure of access doors, which can expose users to high voltage components and damage moving parts, highlighting the need for a robust door interlock system that can detect the positional states of multiple doors efficiently.
Innovation Solution
A two-door interlock system is implemented, featuring a mounting assembly with a bias spring and a sensor mechanism that detects the positional states of both access doors, ensuring accurate detection of closed or open positions and preventing damage by controlling access to high voltage components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mechanical system with only one interlock module is used to detect positional states of two adjacent access doors at a centrally located position, then manufacturing robustness is improved and cost is reduced, but the system must achieve accurate detection of multiple door positions with a single module
Solution Approach 1:
The single interlock module is segmented into two independent detection channels, each detecting the positional state of a different access door. This allows the system to maintain manufacturing robustness with a single module while achieving accurate detection of multiple door positions through functional segmentation.
Solution Approach 2:
The single interlock module is designed with multi-functionality to detect the positional states of both the first access door and the second access door. By making the module universal, the system reduces the number of modules needed while maintaining accurate detection capability for multiple doors.
2Ease of operation
If access doors are provided to allow user access to interior components, then ease of operation is improved, but the risk of exposure to high voltage components and damage to moving parts increases
Solution Approach 1:
The interlock system continuously monitors the positional states of the access doors and provides feedback to the control system. When a door is opened, the system immediately responds by disabling high voltage components and stopping moving parts, preventing exposure to harmful factors while maintaining ease of operation.
Solution Approach 2:
The interlock system takes preliminary anti-action by disabling high voltage components and moving parts before the user can be exposed to them. The system proactively prevents harmful effects by detecting door opening and immediately counteracting potential damage risks.
3Ease of operation
If access doors are not closed and latched properly, then ease of operation is improved, but device downtime and expensive repairs occur due to errors and damage to moving components
Solution Approach 1:
The interlock system provides continuous feedback on door closure status to the control system. The system monitors whether doors are properly closed and latched, and immediately responds with error signals or operational restrictions, preventing device downtime and damage while maintaining ease of operation.
Solution Approach 2:
The system takes preliminary action by verifying door closure and latching status before allowing certain operations to proceed. This prevents damage to moving components and reduces device downtime by catching improper door closure issues before they cause harm.
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 two-door interlock system enhances manufacturing robustness, reduces costs, and prevents device downtime by ensuring proper closure of access doors, thereby safeguarding against errors and damage to internal components.
Implementation Method 1
A bias spring is coupled to the mounting assembly for continuously biasing the mounting assembly towards its second position
Implementation Method 2
With the first access door moved to the closed position, the plunger assembly moves the mounting assembly from its second position to its first position against the biasing force of the bias spring
Data Source
AI summary
An imaging device with a two door interlock system for detecting a positional state of orthogonally mounted first and second access doors of the imaging device. The two door interlock system includes a mounting assembly rotatably mounted to a frame of the imaging device and movable by the first access door between a first position and a second position, and an actuator projecting from an inner surface of the second access door, and a sensor positioned on the mounting assembly and providing an output signal that changes between a first state and a second state. The output signal being in the first state when both of the first and second access doors are in their respective closed positions and in the second state when at least one of the first and second access doors are in their respective open positions.