Resiliently Nestable Lock Base for Tool-Free Hollow Sash Assembly
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Solution Overview
Problem
Existing lock mounting systems for hollow sash profiles are complex, time-consuming, and require tools, making them expensive and difficult to assemble quickly and economically.
Innovation Solution
A base with flexible embedding fingers that can be nested into a hollow sash profile without tools, allowing for easy assembly and disassembly, featuring hooks and holding fingers to secure the lock square in place while allowing rotation, and an elastic wedge for adapting to different thicknesses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional screw-based mounting is used, then secure fixation is achieved, but assembly time and complexity increase significantly
Solution Approach 1:
The base is divided into multiple independent flexible fingers (at least two) that can be inserted separately through the through-hole and secured independently against the internal face, allowing parallel assembly operations and reducing total assembly time while maintaining secure fixation through distributed contact points
Solution Approach 2:
The fingers are made flexible to enable dynamic insertion and adjustment - they can be bent during insertion through the through-hole and then rigidify against the internal face to provide secure fixation, eliminating the need for screws and tools while ensuring reliable mounting
2Reliability
If multiple screws and tools are used, then secure mounting is achieved, but device complexity and cost increase
Solution Approach 1:
The invention extracts and eliminates the screw and tool components from the mounting system, replacing them with self-contained flexible fingers that integrate the fastening function directly into the base structure, thereby reducing device complexity and eliminating tool requirements while maintaining mounting security
Solution Approach 2:
The flexible fingers are designed to perform the mounting function autonomously without external tools - they self-insert through the through-hole, self-position against the internal face, and self-secure the base to the sash profile, eliminating the need for screws, drivers, or any additional fastening components
3Stability of the object's composition
If rigid base structure is used, then structural stability is maintained, but adaptability to different thicknesses is reduced
Solution Approach 1:
The base transitions from a uniformly rigid structure to a structure with localized flexibility - the fingers are flexible enough to adapt to different wall thicknesses during insertion and positioning, but rigidify locally against the internal face to provide stable fixation, thus combining adaptability with structural stability
Solution Approach 2:
The base employs dynamic flexibility where the fingers can change their rigidity state - flexible during insertion and adjustment phases to accommodate varying thicknesses, then rigid when engaged against the internal face to provide stable mounting, enabling both thickness adaptability and structural stability
4Ease of operation
If tool-free insertion is implemented, then assembly ease is improved, but fixation reliability may be compromised
Solution Approach 1:
The flexible fingers act as elastic elements that can be inserted without tools by bending, then engage with sufficient force against the internal face to provide reliable fixation - the flexibility enables tool-free insertion while the elastic engagement ensures secure and reliable mounting without compromising fixation strength
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
Enables quick, tool-free assembly and disassembly of the lock on any hollow sash profile, ensuring secure fixation and easy handling, with the flexible design accommodating various profile thicknesses and preventing translational movement.
Implementation Method 1
The flexibility of the embedding finger therefore makes it possible to flex the embedding finger, so that the end of the embedding finger approaches a main axis of the bore of the main body, so that its hook can be introduced in a hole in a front wall of the sash
Implementation Method 2
The hook of the embedding finger therefore makes it possible to maintain the base fitted into the opening
Implementation Method 3
having a blocking surface arranged to be able to be placed, while the main body of the base is resting against the outer face of the wall front of the sash, at least partly against the inner face of the front wall of the sash
Data Source
Figure 1~2
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Figure 5
AI summary
The invention relates to a mounting base for a square (37) of a lock on a front wall (34) of an opening (32), this front wall (34) having an internal face (36) and a through orifice (33), the base comprising: - a main body (21) having a bore (59) suitable for receiving a square (37) of a lock, - at least one flexible finger, called the recess finger (22), having a locking surface (61) arranged to be able to be placed at least partially against the internal face (36) of the opening (32), characterized in that it further comprises at least one flexible finger, called the retaining finger (23), having a locking surface (61) arranged to be able to be placed at least partially against a face (43), called the retaining face, of a collar (41) of a square (37) of a lock. The invention also extends to a lock comprising such a base and a method for mounting this lock.