Modular Swing Bolt Lock with Adjustable Backset
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Solution Overview
Problem
Conventional swing bolt locks require individual manufacturing for different sizes due to fixed backsets, making them inflexible and inefficient in terms of assembly and production.
Innovation Solution
A swing bolt lock design featuring a gear-based locking mechanism with an intermediate mechanism that allows for adjustable backsets by inserting an intermediate housing part, enabling the same components to be used for various backsets with minimal additional parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If swing bolt locks are manufactured with fixed backsets, then manufacturing is simplified, but adaptability to different installation requirements deteriorates
Solution Approach 1:
The lock housing is divided into modular components: a base part, an optional intermediate housing part, and a forend. This segmentation allows the backset to be adjusted by selecting different combinations of these modules, enabling the same base mechanism to serve multiple backset requirements without complete remanufacturing.
Solution Approach 2:
The locking mechanism and activation elements are designed as universal components that can function across different backset configurations. The same lock cylinder, handle, and swing bolt can be used with various intermediate housing parts to achieve different backsets, reducing the need for multiple specialized components.
2Manufacturing precision
If different sized swing bolt locks are manufactured individually, then each lock is optimized for its specific backset, but production efficiency and cost deteriorate
Solution Approach 1:
By segmenting the lock housing into standardized modules (base part, intermediate housing part, forend), the manufacturer can produce these components in bulk and assemble different backset configurations through simple module combination, significantly improving production efficiency while maintaining precise backset dimensions.
Solution Approach 2:
The backset parameter is adjusted not by manufacturing entirely different locks, but by changing the configuration of modular components. The intermediate housing part acts as a parameter adjustment element that modifies the effective backset while using the same core locking mechanism, enabling efficient production across multiple backset variants.
3Adaptability or versatility
If the swing bolt lock is designed with adjustable backset, then adaptability improves, but device complexity increases
Solution Approach 1:
The adjustability is achieved through segmentation rather than complex mechanisms. By providing a base part with a receiving geometry and optional intermediate housing parts, the system achieves multiple backset configurations through simple modular assembly, avoiding the need for complex adjustment mechanisms.
Solution Approach 2:
The intermediate housing part serves as an intermediary element between the base part and the forend. This mediator component enables backset adjustment by being inserted or removed from the assembly, providing adaptability without requiring complex adjustment mechanisms in the core locking system.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design allows for flexible adjustment of backsets with minimal changes, reducing production costs and increasing redundancy by using identical components for different-sized locks, while maintaining the activation mechanism's functionality.
Implementation Method 1
the operative connection between the activation element and the swing bolt comprises at least one gear element
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
The pivoting bolt lock (1) has a lock housing (2) with a base part (8) and a pivoting bolt (4) that is held at a face plate (5) in rotary mobile manner. An intermediate housing part (20) is fixed between the base part and the face plate for variable magnification of distance between a locking mechanism (3) and a front edge (5a) of the face plate. A retainer geometry is arranged at the base part of the lock housing for assembling an intermediate mechanism (10).