Oven Shelf Sliding Support for Stable Deep Insertion
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Solution Overview
Problem
Existing oven support and sliding systems fail to maximize the usable area and volume of the oven cavity, and they do not ensure stability of the shelf during extraction, prevent contact with the rear wall during insertion, and allow incorrect insertion of shelves.
Innovation Solution
A support and sliding system using metal rod frames with bent horizontal elements and transverse metallic elements that minimize depth to allow deeper shelf placement, prevent deformation, and guide the shelf correctly, ensuring stability and correct insertion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional support and sliding systems are used, then the shelf can be supported and guided, but the usable area and volume of the oven cavity are not maximized
Solution Approach 1:
The support system is divided into separate functional elements: guide rails for lateral guidance, support arms for carrying the shelf, and stopping mechanisms for position control. This segmentation allows each component to be optimized independently, reducing overall complexity while maximizing the usable oven volume.
Solution Approach 2:
The system transitions from a single-depth support structure to a multi-dimensional arrangement where guide rails extend along the lateral sides of the cavity, support arms provide vertical support, and stopping mechanisms control positional depth. This dimensional expansion maximizes usable volume without increasing device complexity.
2Ease of operation
If the shelf is designed for maximum extraction, then more food can be accessed, but the shelf may become unstable and come out of the guides
Solution Approach 1:
Stopping mechanisms are pre-positioned at specific locations along the guide rails to automatically limit the extraction distance of the shelf. This preliminary positioning ensures that the shelf can be easily pulled out for food access while preventing over-extraction that would compromise stability.
Solution Approach 2:
The system changes the positional parameter of the shelf by introducing controlled stopping points at optimal extraction distances. This parameter modification allows the shelf to achieve maximum useful extraction for food accessibility while maintaining stability through predefined positional limits.
3Volume of moving object
If the shelf is inserted deeply into the cavity, then more cooking space is utilized, but the shelf may contact the rear wall causing damage
Solution Approach 1:
Guide rails act as intermediary elements between the shelf and the oven cavity walls. These rails provide a controlled pathway that allows deep insertion of the shelf to maximize cooking volume while preventing direct contact between the shelf and the rear wall, thereby avoiding damage to both the shelf and the cavity.
4Ease of operation
If the guide system allows free movement, then the shelf is easy to insert and remove, but incorrect insertion may occur
Solution Approach 1:
The guide rails and shelf edges are designed with asymmetric features such as shaped guide surfaces and corresponding shelf profiles. This asymmetry allows the shelf to be easily inserted in the correct orientation while preventing incorrect insertion attempts, thereby maintaining both ease of operation and reliability.
Data Source
AI summary
A support and sliding system for extractable shelves that are installable in a cooking oven that allows improved sizing of the usable surface of the shelves and the better utilization of oven volume.