Bathroom Drawer Bottom Wall Design for Pull-Out Fitting Integration
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Solution Overview
Problem
Sanitary furniture drawers face space constraints due to the protrusion of washbasin siphons and limited space on one side by pull-out fittings, preventing objects from being placed in these areas.
Innovation Solution
A drawer design with a bottom wall featuring lateral bulges that accommodate pull-out fittings, allowing the drawer's height to be increased and creating additional space by offsetting the fittings from the outer surface, thereby maximizing storage capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the drawer height is increased to maximize storage space, then the drawer volume is improved, but the pull-out fittings protrude from the outer surface of the bottom wall, creating space constraints
Solution Approach 1:
The pull-out fittings are nested within the bulges of the bottom wall, allowing the fittings to be accommodated inside the drawer structure rather than protruding outward. This resolves the contradiction by enabling increased drawer volume while maintaining a compact external shape.
Solution Approach 2:
The bottom wall is designed with bulges that extend in the longitudinal direction, creating a three-dimensional receiving space that accommodates the pull-out fittings. This dimensional change allows the fittings to be integrated into the bottom wall structure without increasing the drawer's external height.
2Volume of moving object
If the pull-out fittings are accommodated within the bottom wall, then the drawer height is increased, but the bottom wall structure becomes more complex
Solution Approach 1:
The bottom wall is segmented into distinct regions: flat areas for structural stability and bulging areas for accommodating pull-out fittings. This segmentation allows the complex functional requirements to be distributed across different zones, making the overall structure more manageable and manufacturable.
Solution Approach 2:
The bottom wall exhibits local quality variations with bulges positioned specifically at the longitudinal positions where pull-out fittings need to be accommodated. This localized structural modification allows height increase only where necessary, rather than requiring complex modifications throughout the entire bottom wall.
3Volume of moving object
If the drawer space is extended downwards between pull-out fittings, then storage space is increased, but the siphon area cannot accommodate any objects due to space constraints
Solution Approach 1:
The drawer space is extended in the vertical dimension downwards between the pull-out fittings, creating additional storage volume without encroaching on the horizontal siphon area. This allows objects to be stored in the vertical space between fittings while leaving the siphon area clear for its function.
Data Source
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AI summary
A drawer (1), particularly for a sanitary unit (2), comprises a bottom wall (3), two side walls (4), a front wall (5), and a back wall (6), wherein the bottom wall (3), the side walls (4), the front wall (5), and the back wall (6) define a drawer space (7), and two pull-out fittings (8) arranged parallel to each other, which are parallel to the side walls (4) and can be pulled out along a pull-out direction (A), wherein the pull-out direction (A) defines a longitudinal axis (L). The bottom wall (3) has a projection (9) extending laterally to the side walls (4) in the direction of the longitudinal axis (L) between the front wall (5) and the back wall (6), which projection (9) provides a receiving space for receiving parts of the pull-out fittings (8).