Cooking Appliance Side Frame for Tilt-Free Shelf Insertion
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Solution Overview
Problem
Existing inserting devices for cooking compartments require complex adaptation and threading processes to insert holding devices, which can lead to tilting and spillage of hot contents, and do not provide adequate support for large loads.
Innovation Solution
A side frame with a guiding device comprising a support rod and a guide rod, where the guide rod end is axially behind the support rod end, preventing tilting and allowing easy insertion without threading, and providing an overlap-free support region for secure placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the guide rod and support rod are arranged with complex threading and overlapping structures, then the holding device can be guided and positioned, but the insertion process becomes complex and time-consuming
Solution Approach 1:
The patent extracts the guide rod from the overlapping threading structure and positions it axially behind the support rod. This separation eliminates the complex threading requirement while maintaining the guiding function, allowing the holding device to be inserted directly without threading operations.
Solution Approach 2:
Instead of having the guide rod overlap and thread through the support rod structure, the patent inverts the arrangement by placing the guide rod axially behind the support rod. This inversion simplifies the insertion process while achieving the same guiding objective.
2Ease of operation
If the guide rod overlaps the support rod region, then structural support is provided, but the holding device cannot be easily inserted without threading
Solution Approach 1:
The patent extracts the guide rod from the overlapping support region and repositions it axially behind the support rod. This maintains the structural support function of the support rod while eliminating the threading requirement for insertion.
Solution Approach 2:
The patent resolves the conflict by changing the spatial arrangement from an overlapping configuration to an axial sequence configuration. The guide rod is positioned in the axial dimension behind the support rod, creating an overlap-free region that facilitates easy insertion while maintaining structural integrity.
3Ease of manufacture
If extensive attachment of guiding elements is performed, then the inserting device can be securely fixed, but the attachment process is laborious and time-consuming
Solution Approach 1:
The patent segments the guiding device into distinct components (support rod and guide rod) with simplified attachment requirements. The side frame with segmented guiding elements can be quickly attached to the cooking compartment without extensive fastening operations, reducing assembly time and labor.
4Strength
If more material is used in the guiding device structure, then structural strength and stability are improved, but the heating time of the cooking compartment increases
Solution Approach 1:
The patent applies local quality by providing structural strength only where needed - the support rod maintains load-bearing capacity while the guide rod is positioned axially behind it without overlapping. This localized strengthening approach minimizes the total material volume in the guiding device, reducing the heating time of the cooking compartment while maintaining adequate structural strength for supporting holding devices.
Data Source
Figure 1~2
Figure 3
AI summary
To further develop inserting devices for a cooking compartment of a cooking appliance, the invention proposes a side frame for an inserting device of a cooking compartment, which comprises at least one guiding device comprising a support rod and a guide rod, which is radially spaced apart therefrom and which runs substantially parallel, wherein the guide rod encompasses a guide rod length, which is at least more than a third of a support rod length of the support rod and wherein the guiding device is characterized in that an insertion-side guide rod end at an insertion side of the guiding device lies axially behind an insertion-side support rod end.