Adjustable shelf support
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Solution Overview
Problem
Refrigerator shelves often require adjustable support due to manufacturing tolerances and design differences between models, making it challenging to properly level shelves and accommodate taller objects.
Innovation Solution
An adjustable shelf support system comprising a fastener, stationary support, and slidable support, where the slidable support includes ledges that protrude outward and can be positioned on the stationary support, allowing for vertical adjustment and secure mounting to a fixed support bracket, enabling shelves to rotate and accommodate varying heights.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed shelf support is used, then the shelf structure is simple, but the shelf cannot be adjusted to accommodate manufacturing tolerances and design differences
Solution Approach 1:
The shelf support system is divided into separate components: a stationary support attached to the cabinet wall, a slidable support with adjustable positioning, and a fastener system. This segmentation allows each component to perform its specific function while enabling overall adjustability without requiring complete structural redesign.
Solution Approach 2:
The support system transitions from a static fixed connection to a dynamic adjustable connection. The slidable support can move along the stationary support to different positions, and the fastener allows the shelf to be locked at various heights, providing adaptability while maintaining structural integrity when installed.
2Manufacturing precision
If the shelf is made adjustable to account for manufacturing tolerances, then the shelf can be properly leveled, but the installation process becomes more complex
Solution Approach 1:
The adjustable support system enables installers to self-correct manufacturing tolerances and leveling issues without requiring precision manufacturing tools or complex alignment procedures. The slidable and fastener components allow for easy manual adjustment to achieve proper shelf leveling.
Solution Approach 2:
The system allows installation parameters (shelf position, height, angle) to be changed after installation rather than requiring precise predetermined parameters. The adjustable mechanism enables the shelf to be positioned at multiple locations along the support bar, accommodating variations in cabinet dimensions and manufacturing tolerances.
3Reliability
If a simple fastening system is used, then the assembly is quick, but the shelf cannot be securely mounted to account for tolerance variations
Solution Approach 1:
The fastener system uses a nested structure where the fastener component fits within the stationary and slidable support components. This nested design provides secure mounting through multiple engagement points while keeping the overall structure compact and the assembly process relatively simple.
Solution Approach 2:
The slidable support acts as an intermediary between the stationary support (attached to the cabinet) and the shelf. This intermediate component absorbs tolerance variations and provides a secure connection point for the fastener, ensuring reliable mounting without requiring the fastener itself to be overly complex.
Data Source
AI summary
An adjustable shelf support includes a fastener, a stationary support, and a slidable support. The stationary support includes a first body, a first aperture formed through the first body, and a first plurality of ledges that protrude outward away from the first body. The slidable support includes a second body, a second aperture formed through the second body, and a second plurality of ledges that protrude outward away from the second body. A ledge of the second plurality of ledges is positioned on a ledge of the first plurality of ledges. The fastener is inserted through the second aperture and the first aperture to further mount the slidable support to the stationary support.