Multi-Lock Linkage for Fast Emergency Door Unlocking
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Solution Overview
Problem
Existing door lock mechanisms are complex and inefficient in emergencies, requiring multiple locks to be unlocked simultaneously, which can delay escape during hazards.
Innovation Solution
A multi-lock system combining a deadlock and keyless lock with a safety override, featuring a linkage mechanism that allows simultaneous operation of both locks through a keyless locking component, enabling quick unlocking via a keyless lock actuator or manual override.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple locks are installed on a door for security, then security is improved, but the time required to unlock all locks in an emergency increases
Solution Approach 1:
The patent combines multiple locks (deadlock and keyless lock) into a single multi-lock system where both locks are operatively connected to a common actuator through a linkage mechanism. When the actuator is operated, it simultaneously actuates both locks, allowing them to be unlocked together in a single action rather than requiring separate operations for each lock.
Solution Approach 2:
The multi-lock system provides multiple functions: it can lock and unlock both the deadlock and keyless lock simultaneously through a single actuator operation, and it also includes a safety override mechanism that allows manual operation of the actuator from the inside of the door. This multi-functionality addresses both security requirements and emergency escape needs.
2Ease of operation
If a safety override mechanism is added to allow emergency escape, then ease of operation in emergencies is improved, but device complexity increases
Solution Approach 1:
The safety override mechanism allows the occupant to manually operate the actuator from the inside of the door without requiring external assistance or complex electronic systems. The manual actuator can be directly manipulated to release the linkage and unlock both locks, providing a simple self-service emergency escape function.
Solution Approach 2:
The linkage mechanism serves as an intermediary that connects the actuator to both locks. The safety override operates through this same linkage, allowing manual actuation to propagate to both locks simultaneously. This intermediary mechanism enables the safety function without requiring a separate complex system for each lock.
Data Source
AI summary
A multi-lock for a closure is described. The multi-lock includes a deadlock having a deadlock actuator operation of which moves a deadbolt between an unlocked retracted position and a locked extended position; a keyless lock having a keyless lock actuator wherein operation of the keyless lock moves a keyless locking component between a locked position and an unlocked position; and a linkage having a deadlock interaction segment in operative connection with the deadlock and a keyless lock interaction segment in operative connection with the keyless lock. A method of manufacturing the multi-lock for a closure and a method of installing the multi-lock are also described.