Multi-mode Lock Assembly with Cord-driven Latch and Mesh Network Control
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Solution Overview
Problem
Conventional lock assemblies lack a robust mechanism to securely transition between multiple lock states, such as unlocked, locked, and deadlocked states, often relying on manual or key-based methods that are inefficient and lack remote control capabilities.
Innovation Solution
A lock assembly with a latch assembly that can be moved between extended and retracted positions by handles, featuring a hub and member system that allows or prevents movement based on lock states, and an integrated network system for remote control via a mesh network, enabling secure transitions between unlocked, locked, and deadlocked states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If conventional lock assemblies use manual or key-based methods to transition between lock states, then the mechanism is simple, but the efficiency and security are insufficient and lack remote control capabilities
Solution Approach 1:
The patent replaces traditional manual or key-based mechanical locking mechanisms with an automated electromechanical system. The lock assembly uses an electric motor to drive a spool that winds or unwinds a cord, thereby moving the latch between locked and unlocked positions. This substitution enables remote control via a mesh network while maintaining a relatively simple mechanical structure.
Solution Approach 2:
The patent introduces a mesh network communication system as an intermediary between the user and the lock mechanism. The lock assembly includes a communication interface that receives commands from remote devices through the mesh network, translating wireless signals into mechanical actions. This intermediary layer provides remote control capability without requiring direct physical interaction with the lock.
2Reliability
If the lock assembly includes multiple lock states (unlocked, locked, deadlocked), then the security is enhanced, but the device complexity increases
Solution Approach 1:
The patent implements a dynamic lock mechanism where the latch can occupy multiple discrete positions corresponding to different lock states. The cord-connected latch system allows smooth transitions between unlocked, locked, and deadlocked positions by winding or unwinding the cord controlled by the electric motor. This dynamic design enables multiple security states without requiring separate mechanical mechanisms for each state.
Solution Approach 2:
The patent designs a universal lock mechanism that handles multiple lock states using a single integrated system. The same electric motor, spool, and cord assembly that provides basic locking functionality also enables deadlocking capability. The communication interface universally manages all state transitions through standardized commands, making the system multi-functional without proportionally increasing complexity.
3Ease of operation
If the lock assembly uses a cord-connected latch mechanism with hub and member system, then the ease of operation is improved, but the reliability of state transitions may be compromised
Solution Approach 1:
The patent incorporates a position detection system that provides feedback on the latch position to the control system. Sensors or switches detect whether the latch is in the unlocked, locked, or deadlocked position and communicate this information back to the controller. This feedback mechanism ensures reliable state transitions by confirming the latch has reached the intended position and can trigger alerts or error messages if a transition fails.
Data Source
AI summary
A lock assembly that has a first lock state and a second lock state. The lock assembly includes a latch assembly that has a latch movable between an extended position and a retracted position, and a handle operatively coupled to the latch to move the latch between the extended position and the retracted position. The lock assembly also includes a hub that is coupled to the handle for movement therewith, a member that is operatively coupled to the handle to permit or prevent movement of the latch, and a lock element. The member is engaged with the hub to permit or prevent movement of the hub. The lock element is engaged with the member in the second lock state such that the member prevents movement of the handle, and the lock element is disengaged from the member in the first lock state such that the member permits movement of the handle.