Lock Assembly with Visual Status Indication for Mobile Appliances
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Solution Overview
Problem
Residential appliances lack locking mechanisms, making them unsuitable for mobile applications like RVs or marine use, and users face difficulties in determining if an appliance is locked or unlocked, often resulting in painful hard stops when trying to open a locked door or drawer.
Innovation Solution
A lock assembly that can be mounted on appliances or cabinets, featuring a support, slide, handle, and anchor system that visually indicates the locked or unlocked position and automatically moves to an unlocked position upon closing, allowing for easy retrofitting or installation, and providing locking capabilities for both doors and drawers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a lock assembly is added to residential appliances, then locking capability for mobile applications is achieved, but device complexity increases
Solution Approach 1:
The lock assembly is divided into separate functional components: a lockable member on the movable portion, a lockable structure on the fixed portion, and a handle mechanism. This segmentation allows each component to perform its specific function independently while simplifying the overall design and installation process.
Solution Approach 2:
The lock assembly is designed with universal mounting capabilities that can be applied to various appliance types (doors, drawers, cabinets) and configurations (fixed-to-movable, movable-to-movable). The standardized handle and lockable member design allows the same basic mechanism to serve multiple locking functions across different appliance applications.
2Loss of information
If visual indication of lock status is provided, then user awareness of locked/unlocked position is improved, but device complexity increases
Solution Approach 1:
The lockable member incorporates visual indicators that change appearance based on lock status. When locked, the indicator shows one state (e.g., aligned position, visible marker), and when unlocked, it shows another state. This provides clear visual feedback to users without requiring additional electronic components or complex indication mechanisms.
3Ease of operation
If the lock assembly automatically moves to unlocked position upon closing, then ease of operation is improved, but reliability decreases
Solution Approach 1:
The handle mechanism is designed to automatically move the lockable member to the unlocked position during the door closing operation, before the user needs to manually open it. This preliminary action ensures the appliance is ready for opening without requiring additional manual manipulation, while the mechanical design maintains secure locking when closed.
Data Source
AI summary
A lock assembly is provided which may be used for instance with mobile mounted appliances and cabinets. The lock assembly is provided to inhibit opening of the doors or drawers and which also shifts the lock assembly so that the lock does not inhibit closure of the door or drawer. The lock assembly also provides visual indication of the status of the lock.