Eccentric Lock Cover Plate Insert for Multi-Orientation Alignment
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Solution Overview
Problem
Existing cabinet door and drawer locks require different cover plate configurations for various installation orientations, making it challenging to have a single model cover plate that can register with the lock regardless of its position.
Innovation Solution
A cover plate assembly with a rotatably mounted circular insert having an eccentrically positioned aperture that can align with both the bolt housing and the cylinder and plug assembly housing, allowing for registration in multiple positions by rotating the insert within the cover plate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single model cover plate is used for multi-positionable locks, then versatility and ease of installation are improved, but registration and alignment with different lock orientations become difficult
Solution Approach 1:
The cover plate insert is made rotatable relative to the cover plate body, allowing the insert to be dynamically repositioned to different angular orientations. This enables a single cover plate design to accommodate multiple lock installation positions (bolt up, bolt down, left hand, right hand) by simply rotating the insert to the appropriate orientation before installation, thus maintaining both versatility and alignment precision.
2Manufacturing precision
If different cover plate configurations are used for various installation orientations, then registration and alignment are improved, but device complexity and inventory requirements increase
Solution Approach 1:
The cover plate assembly is designed as a universal, multi-functional unit where a single cover plate body can accommodate multiple lock orientations through the rotatable insert mechanism. This eliminates the need for multiple different cover plate models or configurations, reducing inventory complexity while maintaining precise registration and alignment for all installation positions.
Data Source
AI summary
A cover plate assembly 10 is provided for a cabinet door or drawer lock 12. A cover plate 26 defines a first circular aperture 28 and a rotatably circular cover plate insert 32 defines an eccentrically positioned second circular aperture 34. The second circular aperture 34 defines an inner diameter 33 sized to selectively receive the cylinder and plug assembly housing 20, and the insert 32 has an outer diameter 39 sized to fit within and selectively rotate with respect to the first circular aperture 28. During installation, the outer diameter 39 of the insert 32 is positioned within the first circular aperture 28, and the insert 32 is selectively rotated to a position that enables the cover plate assembly 10 to register with a bolt housing 16 and the second circular aperture 34 to register with a cylinder and plug assembly housing 20.