Drawer Front Plug-In Assembly for Screwless Stable Fixation
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Solution Overview
Problem
Existing drawer designs require complex and costly assembly methods, such as screwing or welding, to connect the front wall to the side walls and base, which increases production costs and assembly complexity.
Innovation Solution
A plug-in system using fixing tabs on the front wall and holding means in the side frames and base allows for a secure connection of the front wall to the drawer without the need for screws or welding, utilizing slots and flanges for a stable fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If screw connections or welding are used to connect the front wall to the side walls and base, then the connection strength and stability are improved, but the device complexity and production costs increase
Solution Approach 1:
The connection system is segmented into fixing tabs attached to the front wall and corresponding holding means integrated into the side frames and base. This segmentation allows the front wall to be connected through multiple simple plug-in points rather than requiring complex continuous joining methods like welding or screwing along the entire perimeter.
Solution Approach 2:
Fixing tabs and holding means act as intermediary elements that mediate the connection between the front wall and the drawer structure. These intermediaries provide a simplified mechanical interface that achieves strong connection without requiring direct application of complex joining methods between the main components.
2Reliability
If screw connections or welding are used to connect the front wall, then the connection stability is improved, but the manufacturing costs and assembly time increase
Solution Approach 1:
The fixing tabs and holding means are designed to be self-aligning and self-fixing through their geometric configuration. The slots and protrusions guide the assembly process automatically, allowing workers to install the front wall without requiring specialized skills for welding or screwing, thereby reducing both labor costs and assembly time while maintaining connection stability.
3Ease of operation
If fixing tabs and holding means are used in side frames and base, then the ease of assembly is improved, but the device complexity increases
Solution Approach 1:
The holding means are merged into the existing side frames and base structure rather than being separate additional components. The slots are integrated directly into the side frames, and the base incorporates the necessary fixing features, thereby simplifying the overall structure by eliminating separate connection mechanisms while maintaining ease of assembly.
Data Source
Figure 1~2
Figure 3~3d
Figure 4a~7
AI summary
The drawer (1) has a base (2), two side walls (3) and a front wall (4). The drawer is made of metal or plastic. The front wall is connected with the side walls at the front side of the drawer. The front wall is equipped with multiple fixing latches, which are arranged in the area of the side frames (3a) and the base. The front wall is fixed to the front side of the drawer by the fixing latches and the holding units.