Multipoint Lock Backset Facia Orientation Adjustment
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Solution Overview
Problem
Existing multipoint lock assemblies for windows require multiple variations in backset distances and rod assembly lengths to accommodate different window sizes, leading to increased manufacturing costs and potential installation delays due to incompatible components.
Innovation Solution
A multipoint lock assembly featuring a gearbox with a removably connected backset facia that can be adjusted between two different backset orientations using castellations, allowing for easy switching between 20mm and 22mm backset settings without requiring additional components, and facilitating easy engagement of faceplates and rod assemblies of varying lengths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple different lock assemblies are manufactured to cover all backset and rod assembly lengths, then all window sizes can be accommodated, but manufacturing costs increase and inventory complexity increases
Solution Approach 1:
The gearbox is designed with a universal interface that can accept multiple backset facia configurations (20mm and 22mm backsets) and multiple rod assembly lengths through the same connection aperture. This allows a single gearbox design to serve multiple functions across different window specifications, eliminating the need for separate lock assemblies for each variant.
Solution Approach 2:
The lock assembly is divided into separable components: the gearbox, backset facia, and rod assemblies. The backset facia can be detached and reattached in different orientations to change backset distance, and rod assemblies of different lengths can be interchangeably connected. This segmentation allows flexibility without requiring multiple complete lock assembly variants.
2Adaptability or versatility
If multiple different lock assemblies are manufactured to cover all backset and rod assembly lengths, then all window sizes can be accommodated, but stock levels and manufacturing costs increase
Solution Approach 1:
A single universal gearbox design can accommodate multiple backset distances (20mm and 22mm) and multiple rod assembly lengths through interchangeable components. This universality reduces the total quantity of different lock assembly variants that need to be stocked, as one gearbox model replaces what would previously require multiple specialized models.
Solution Approach 2:
The backset facia can be detached from the gearbox and reattached in a different orientation to change the backset distance. Instead of discarding a lock assembly with the wrong backset, the backset facia is removed and reconfigured, allowing the same components to be recovered and reused for different window specifications.
3Ease of manufacture
If a fixed backset design is used, then manufacturing is simplified, but installation compatibility with different windows is reduced
Solution Approach 1:
The backset facia is designed to be detachable and reconfigurable, allowing the lock assembly to dynamically adapt between different backset distances (20mm and 22mm). This dynamic capability is achieved through a simple attachment mechanism that requires no complex manufacturing, maintaining ease of production while enabling installation compatibility across different window types.
4Quantity of substance
If incompatible lock assemblies are used, then manufacturing stock is reduced, but installation delays increase
Solution Approach 1:
The backset facia is pre-configured with castellations that align with corresponding features on the gearbox for specific backset distances. This preliminary configuration allows the installer to quickly identify and attach the correct orientation without complex measurements or adjustments, preventing installation delays while maintaining reduced stock requirements through component versatility.
Data Source
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AI summary
The present invention concerns a multipoint lock assembly. More particularly, but not exclusively, this invention concerns a multipoint lock assembly for a window. The multipoint lock assembly comprises a gearbox and a backset facia removably connected to the gearbox. The backset facia is configured such that when removably connected to the gearbox in a first orientation, a first backset is provided, and when removably connected to the gearbox in a second orientation, a second, different, backset is provided. This allows the lock assembly to be easily adjusted to provide a first backset or a second backset using the same components.