Lock Assembly With Separable Drive Unit for Easier Maintenance
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Solution Overview
Problem
Existing lock mechanisms for roller shutter doors and similar closures require manual actuation or electromechanical components that are bulky, difficult to install, and lack flexibility in size adaptation and maintenance access.
Innovation Solution
A separable drive unit for lock assemblies that includes a motor and electronic components, allowing for surface mounting and easy detachment from the lock assembly, with orthogonal input and output transmission, symmetrical design, and a keyed interface for easy installation and maintenance, featuring a drive train that prevents back-driving and manual override options.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If electromechanical components are integrated into the lock assembly, then the locking function is automated, but the device becomes bulky and difficult to install
Solution Approach 1:
The lock unit is divided into two separate modules: a lock assembly and a drive unit. The drive unit containing the motor and electronic components can be surface-mounted separately from the lock assembly, reducing overall bulkiness and simplifying installation while maintaining automated locking functionality.
Solution Approach 2:
The motor and electronic components are extracted from the lock assembly and placed in a separate drive unit. This allows the lock assembly to remain compact and easy to install, while the drive unit handles the automated function and can be mounted on the surface nearby.
2Shape
If the lock assembly is made compact for aesthetic purposes, then appearance is improved, but maintenance access becomes difficult
Solution Approach 1:
By separating the lock assembly from the drive unit, the compact lock assembly maintains its aesthetic design while the separate drive unit provides accessible points for maintenance and power supply management without requiring disassembly of the compact structure.
3Adaptability or versatility
If manual override capability is added to existing locks, then operational flexibility is improved, but the risk of motor damage increases
Solution Approach 1:
A one-way clutch mechanism acts as an intermediary between the manual override operation and the motor. This allows manual operation to override the lock without transmitting reverse torque to the motor, preventing motor damage while maintaining operational flexibility.
4Device complexity
If the lock mechanism uses traditional mechanical components, then simplicity is maintained, but adaptability to different door sizes is limited
Solution Approach 1:
The drive unit with motor and electronic components serves as a universal interface that can adapt to different door sizes and lock assembly configurations. The separable design allows the same drive unit to work with various lock assemblies, providing versatility while maintaining mechanical simplicity in each component.
Data Source
AI summary
The invention concerns a lock unit, comprising a lock assembly having a locking element and a drive receiving portion operatively associated with the locking element and a drive unit connected to the lock assembly, the drive unit having a motor and being configured to move the locking element of the lock assembly from a locked position to an unlocked position, the drive unit including a driving element that interfaces with the drive receiving portion of the lock assembly to move the locking element from the locked position to the unlocked position, wherein the drive unit is selectively separable from the lock assembly. The invention facilitates fitment of the lock assembly in position, provides a more compact and secure solution, and assists in regard to maintenance.