Compartment Release Device Latch Mechanism
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Solution Overview
Problem
Existing systems for controlling access to privatized compartments in public places, such as sanitary cabins on rail vehicles, are prone to errors, leading to the risk of travelers being inadvertently locked inside, requiring tedious checks and special keys for operation.
Innovation Solution
A system allowing users to unlock privatized compartments from the inside by manipulating a release device that includes a latch operable between closed, intermediate, and release positions, with a translational actuation mechanism and visual/tactile information for user guidance, enabling safe exit without external assistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking system is implemented to restrict access to authorized personnel only, then security and privacy of the compartment are improved, but the risk of inadvertently locking a traveler inside increases
Solution Approach 1:
The release device is designed to be operable by the traveler themselves from inside the compartment. The user can manipulate the release device to actuate the locking device and exit the compartment without requiring external assistance, thereby eliminating the harmful effect of confinement while maintaining secure access control
Solution Approach 2:
The release device is pre-configured inside the compartment with the latch and actuation mechanism positioned so that the user can immediately operate it when needing to exit. The system is prepared in advance with the understanding that the user will need to be able to unlock from the inside, preventing the harmful effect before it can occur
2Reliability
If a special key system is used for locking the compartment, then authorized access control is improved, but the complexity of external unlocking procedures increases
Solution Approach 1:
The release function is extracted from the external locking mechanism and placed inside the compartment. The release device is operable by the user from the interior, eliminating the need for complex external unlocking procedures while maintaining authorized access control through the locking device
Solution Approach 2:
Instead of requiring the user to unlock from the outside using a special key, the system is inverted to allow the user to unlock from the inside using the release device. This reverses the traditional locking paradigm and simplifies the user experience while maintaining security
3Object-affected harmful factors
If manual verification of compartment occupancy is performed before locking, then the risk of traveler confinement is reduced, but the time and effort required for sealing increases
Solution Approach 1:
The system eliminates the need for manual verification by providing a self-service release mechanism. The user can immediately actuate the release device from inside the compartment if needed, making the sealing process faster and more reliable without requiring time-consuming manual checks
Data Source
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Figure 5
AI summary
The invention relates mainly to a system for unlocking from the inside a previously locked lockable compartment such as a bathroom fitting, which compartment is provided with two complementary portions formed by a frame (1) and a mobile access (2) such as a door, which system comprises a locking device (3) for locking the access to said lockable compartment and control means (14) for controlling the locking device (3) from the outside of the compartment configured to actuate the locking device (3) at least between a usage position and a locking position, and which system comprises a release device (17) which can be operated by a user from the inside of the compartment into a position for releasing the locking device (3) in order to allow the user to exit the previously locked compartment.