Adjustable shelf support system for medicine cabinets
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Solution Overview
Problem
Existing medicine cabinet shelving systems often result in unsteady shelves due to uneven load distribution and loose pin-and-hole arrangements, leading to tilting and aesthetic issues from visible unused holes.
Innovation Solution
The system features adjustable shelf support members with securing lugs that lock into vertically arranged circular slots in a recessed race on the cabinet walls, providing rigidity and hiding unused slots for aesthetic appeal, with a channel for inserting glass or other materials as shelves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a pin and hole arrangement is used for shelf support, then the shelf can be adjusted to different locations, but the shelf becomes unsteady and may tilt due to loose fit and uneven load distribution
Solution Approach 1:
The shelf support system is divided into separate components: circular slots in the cabinet wall, shelf supports with lugs, and shelves themselves. This segmentation allows each component to be optimized independently - the slots provide precise positioning, the lugs provide secure engagement, and the shelves provide the loading surface.
Solution Approach 2:
Circular slots are used instead of conventional holes to receive the shelf support lugs. The circular geometry provides superior load distribution and engagement compared to conventional rectangular or round holes, preventing the shelf from tilting or becoming unsteady while maintaining adjustability.
2Adaptability or versatility
If multiple vertical holes are drilled in the cabinet side wall for shelf adjustment, then the shelf can be relocated, but unused holes create unsightly visible defects
Solution Approach 1:
The circular slots are recessed into the cabinet side wall, creating a nested structure where the slot is set back from the outer surface. This nesting conceals the slots and any unused openings from external view, maintaining aesthetic appearance while preserving the ability to reposition shelves.
3Reliability
If the shelf support structure is made more robust to prevent tilting, then shelf stability improves, but the adjustment mechanism becomes more complex
Solution Approach 1:
The shelf support system allows dynamic repositioning of shelves to different heights and locations while maintaining stability at each position. The circular slots provide discrete positioning points, and the lugs enable easy insertion and removal, combining stability with adjustability without complex mechanisms.
Data Source
AI summary
An adjustable locking shelf support system for use in a medicine cabinet or other cabinet. The adjustable shelf support members have set-off lugs which are inserted and locked into slots in a recessed race located in the vertical walls of the cabinet. The front portion of the adjustable locking shelf support member protrudes into the cabinet toward the front has a channel that, together with the cooperating adjustable locking shelf support member located on the opposite side vertical wall of the cabinet, accepts a shelf made of glass or other material. The adjustable shelf support members can be removed and replaced throughout the cabinet in other slots evenly spaced in a vertical orientation in the recessed race of the vertical walls of the cabinet.