Snap-Fit Wooden Fixture Assembly for Precise Glass Frame Alignment
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Solution Overview
Problem
Existing composite fixtures face challenges in manufacturing, requiring complex assembly, lack of precise positioning, and potential damage from traditional coupling devices like screws, which are not ergonomically friendly and require specific tools.
Innovation Solution
A composite fixture with snap-engaging coupling devices that utilize plastic bodies with centering elements and elastically deformable connections, allowing for easy assembly without specialized tools and ensuring precise alignment of wooden frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If threaded coupling devices (screws, grub screws) are used to join frames, then a stable connection is achieved, but the frames or glass may be damaged and alignment is compromised
Solution Approach 1:
The patent introduces an intermediary coupling device consisting of a first body and a second body that connect the two frames without direct threaded fastening. These bodies distribute forces and provide a protective interface, preventing damage to the frames and glass while maintaining connection stability.
Solution Approach 2:
The patent replaces the traditional threaded mechanical fastening system with a snap-fit coupling mechanism. The second body features an elastically deformable connection element that engages with the first body through elastic deformation rather than threading, eliminating the need for screwdrivers and reducing risk of damage.
2Strength
If threaded coupling devices are used, then connection stability is achieved, but assembly complexity increases and requires specific tools
Solution Approach 1:
The coupling device is designed to be self-assembling through elastic deformation. The second body's connection element automatically engages with the first body when brought together, requiring no external tools or specialized assembly knowledge. The elastic material provides self-aligning and self-locking functionality.
Solution Approach 2:
The patent replaces the threaded fastening system requiring screwdrivers with an elastic snap-fit mechanism. The elastically deformable connection element allows tool-free assembly by simply pressing the components together, significantly improving ease of operation.
3Strength
If traditional coupling devices are used, then connection is achieved, but positioning precision between frames is compromised
Solution Approach 1:
The patent incorporates visual indicators (such as colored markings or alignment features) on the coupling devices and frames to guide precise positioning during assembly. These visual cues enable accurate alignment without requiring complex measurement tools or specialized skills.
Solution Approach 2:
The coupling device acts as a precision intermediary component with built-in alignment features. The first and second bodies include guide elements and positioning surfaces that ensure accurate frame alignment during the coupling process, maintaining manufacturing precision without requiring expert assembly.
4Reliability
If complex assembly procedures are used, then reliable coupling is achieved, but assembly time increases
Solution Approach 1:
The coupling device is segmented into a first body and a second body that can be independently prepared and then quickly assembled. This segmentation allows for simple, rapid assembly while maintaining reliable coupling through the elastic engagement mechanism.
Solution Approach 2:
The elastic connection element provides self-aligning and self-locking functionality during assembly. When the second body is brought near the first body, the elastic deformation automatically guides and secures the connection, eliminating the need for complex assembly procedures or multiple adjustment steps.
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
The solution enables cost-effective, ergonomic, and precise assembly of wooden frames with high-quality results, suitable for industrial production and extreme weather conditions, without damaging the frames or glass panels.
Implementation Method 1
a second body (7) to be housed in a second body seat (30) of the second frame (3), comprising an elastically deformable connection element (75) to snap-engage an abutment element (65) of the first body (6)
Data Source
Figure 1
Figure 2
Figure 2a
AI summary
A composite fixture (1) comprising: - a first wooden frame (2) comprising a first reference surface (21), and a plurality of first body seats (20); - a second wooden frame (3) comprising a second abutment surface (35) facing the first frame (2), and a plurality of second body seats (30); - at least one panel (4), for example made of glass, supported by the first reference surface (21), between the first frame (2) and the second frame (3) along a coupling direction (C-C); and - a plurality of coupling devices (5), each comprising a first body (6) and a second body (7) respectively housed in a first body seat (20) and a second body seat (30). The first body (6) and the second body (7) are mutually snap-engaged, coupling the first frame and the second frame (3) and locking the at least one panel (4).