Window Lock Handle Mounting Kit with Universal Snap-Fit Bushing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing mounting solutions for manual control devices of locks on windows or doors suffer from limited flexibility in use and require complex assembly, complicating warehouse logistics and product diversification.
Innovation Solution
A mounting kit comprising a handle, a box-shaped block, a bushing, and a ring with indexing and snap-fit engagement means, allowing for easy assembly and compatibility with multiple handle versions, enabling product diversification without increasing component variety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the bushing is made as a single piece with the handle neck, then ease of assembly is improved, but flexibility in use deteriorates
Solution Approach 1:
The invention divides the control device into separate modular components: the handle (1) remains distinct from the bushing (3), which is inserted into the handle's housing (8). This segmentation allows the bushing to be independently selected and replaced while maintaining the handle structure, thereby achieving both easy assembly and flexibility in use.
Solution Approach 2:
The bushing (3) is designed as a universal component that can be used with multiple handle versions through standardized interfaces (guiding means, anti-rotation means, anti-extraction means). This multi-functionality allows a single bushing design to serve multiple purposes across different handle configurations, improving flexibility without complicating assembly.
2Adaptability or versatility
If product diversification is achieved through multiple component versions, then adaptability is improved, but device complexity deteriorates
Solution Approach 1:
The invention establishes universal interfaces and standardized features across all bushing and handle designs. The guiding means, anti-rotation means, and anti-extraction means are designed to be compatible across different versions, allowing product diversification through configuration rather than component variety, thereby maintaining simplicity.
Solution Approach 2:
The invention maintains standardized interface qualities at specific locations (the bushing-handle connection points) while allowing variability in other areas. This local quality approach enables diversification in handle design and aesthetics without requiring different bushing components, reducing overall component variety while maintaining adaptability.
3Ease of manufacture
If warehouse logistics are simplified by reducing component variety, then ease of manufacture is improved, but adaptability deteriorates
Solution Approach 1:
The bushing is designed as a universal component that can serve multiple handle versions through standardized interfaces. This universality reduces the number of unique bushing variants needed in the warehouse while maintaining the ability to support diverse handle configurations, thereby simplifying logistics without sacrificing adaptability.
Solution Approach 2:
The invention enables dynamic product configuration through the standardized interface system. Rather than manufacturing and storing multiple fixed component variants, the system allows flexible assembly of different handle-bushing combinations from a core set of standardized parts, reducing inventory complexity while maintaining product diversity.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The mounting kit for a manual control device of a lock for a window or door comprises a handle (1), a box-shaped mounting block (2) for mounting the handle (1) on a window or door profile, a bushing (3), a square pin (4), and a ring (5) that can be rotationally engaged with the bushing (3) and externally features means for indexing the angular position of the handle (1), where the handle has a grip (6) and a neck (7) equipped with a housing (8), where the box-shaped mounting block (2) has a through-hole (9) through which the bushing (3) can be positioned and elastic means for feedback on the indexing means, and where the bushing (3) is made of a single block featuring an open axial channel (10) for fitting the square pin (4), front guiding means for inserting a front portion of the bushing (3) into the housing (8) in the neck (7) of the handle (1), rear snap-fit engagement means for securing a rear portion of the bushing (3) to the ring (5), anti-rotation means for the front portion of the bushing (3) in the housing (8) in the neck (7) of the handle, and anti-extraction means for the front portion of the bushing (3) from the housing (8) in the neck (7) of the handle.