Hinged Bridge Adapter for Non-Standard Mortise Lock Cavities
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Solution Overview
Problem
Mortise locks often require custom-sized cavities for installation, and when upgrading or replacing, existing doors may lack a suitable surface for attaching a faceplate, necessitating expensive replacements.
Innovation Solution
The development of bridge adapters that can be inserted into door stiles, featuring a planar body with hinges allowing for flexible folding into a rectangular tube shape to support mortise locks or faceplates, even in cavities that are not perfectly sized, with a tail for easy insertion and detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a mortise lock is installed in a cavity that is not properly sized, then the lock installation becomes complicated or impossible, but replacing the door is expensive
Solution Approach 1:
The bridge adapter serves as an intermediary component between the non-standard cavity and the mortise lock. It is inserted into the existing cavity and provides a standardized mounting surface for the lock, eliminating the need to replace the entire door while enabling proper lock installation in improperly sized cavities.
Solution Approach 2:
Instead of replacing the expensive door, the invention uses a relatively inexpensive bridge adapter that can be installed in the existing cavity. This disposable or temporary solution achieves the desired functionality without the high cost of door replacement.
2Adaptability or versatility
If a faceplate is installed on a door stile that lacks a smooth surface, then the faceplate cannot be properly attached, but replacing the door is expensive
Solution Approach 1:
The bridge adapter acts as an intermediary that creates a smooth, standardized mounting surface on doors that previously had mortise lock cavities. It bridges the gap between the rough cavity opening and the requirements for faceplate attachment, enabling proper installation without door replacement.
3Adaptability or versatility
If the bridge adapter uses multiple hinges for flexible folding, then the structure becomes more complex, but the adaptability to fit different cavity sizes improves
Solution Approach 1:
The bridge adapter incorporates multiple hinges that allow the structure to dynamically adjust and fold to different configurations. This enables the adapter to fit various cavity sizes and shapes while maintaining structural integrity and providing a stable mounting surface for the lock.
Data Source
AI summary
Bridge adapters configured for insertion into a cavity within a door stile are presented, the bridge adapter including: a planar body including, a top plate disposed along a distal end of the planar body, a first side plate including a first side plate front edge and a first side plate back edge located opposite the first side plate front edge, where the first side plate is mechanically coupled along the first side plate front edge and the top plate back edge by a first hinge, a bottom plate including a bottom plate front edge and a bottom plate back edge located opposite a bottom plate front edge, where the bottom plate front edge is mechanically coupled along the first side plate back edge and the bottom plate front edge by a second hinge.