Six-Way Latch Bolt Assembly Universal Mounting
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Solution Overview
Problem
Current door latch bolt assemblies require separate designs for mortised and non-mortised doors, limiting their versatility and increasing manufacturing, inventory, and retail costs due to the need for distinct faceplates and backplates.
Innovation Solution
A door latch bolt assembly design that includes a cylindrical casing with radially extending tabs, a bolt operating mechanism, a faceplate with semi-circular flanges and slots, and a cylindrical sleeve that allows for adjustable alignment and secure attachment, enabling the same assembly to be used on both mortised and non-mortised doors with a 1-inch latch bore.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate latch bolt assemblies are designed for mortised and non-mortised doors, then each door type receives proper support and alignment, but manufacturing complexity and inventory requirements increase
Solution Approach 1:
The latch bolt assembly is designed with a universal mounting system that can accommodate both mortised and non-mortised doors. The faceplate includes multiple mounting configurations and the cylindrical casing with tabs can be secured using either mortise integration or drive-in methods, allowing one assembly design to serve multiple door types.
Solution Approach 2:
The assembly is divided into separable components including the faceplate, cylindrical casing, tabs, and mounting hardware. This segmentation allows the same base assembly to be configured differently for mortised or non-mortised applications by simply changing the mounting method rather than requiring completely different assemblies.
2Ease of manufacture
If a single latch bolt assembly design is used for both mortised and non-mortised doors, then manufacturing and inventory are simplified, but proper support and alignment may be compromised
Solution Approach 1:
The mounting system incorporates adjustable and adaptable features that allow the same assembly to dynamically adapt to different door types. The faceplate can be mounted using different methods (mortise or surface-mounted), and the cylindrical casing can be secured through various mechanisms depending on whether the door is mortised or non-mortised.
Solution Approach 2:
The assembly allows changes in mounting parameters and configuration based on the door type. The same basic assembly can be installed with different mounting depths, attachment methods, and faceplate configurations to optimize performance for either mortised or non-mortised doors.
3Manufacturing precision
If the faceplate is fixed in position, then alignment is precise, but adaptability to different door configurations is reduced
Solution Approach 1:
The faceplate mounting system is designed to be dynamic rather than fixed, allowing adjustment and reconfiguration. The faceplate can be positioned and secured in multiple ways depending on whether the application requires mortise mounting or surface mounting, enabling precise alignment in each specific context while maintaining versatility.
Data Source
AI summary
An improved door latch bolt assembly comprising a cylindrical casing having a front end, a back end and an external surface, and at least one tab extending radially outward from the front end of the cylindrical casing; a bolt; a bolt operating mechanism fixed to the cylindrical casing; and a faceplate having a front side, a back side, and a bolt hole adapted to receive the bolt in a sliding relationship; and a cylindrical sleeve comprising two semi-circular halves joined together, the cylindrical sleeve turnably received at the front end on the external surface of the cylindrical casing and slidably joined to the faceplate to permit the cylindrical casing and the faceplate to turn up to about ten degrees in either direction within the sleeve.