Oven Rack Guide Element with Front-Welded Attachment to Reduce Jamming
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Solution Overview
Problem
Existing cooking appliances face difficulties in easily inserting and removing food supports due to the design of slide-in guides, which can cause jamming and require awkward handling.
Innovation Solution
A device with a slide-in guide system where the upper guide element has a cross-sectional surface perpendicular to its longitudinal axis, connected to the support rod, allowing for improved alignment and attachment, and an S-shaped bend to facilitate easy insertion and prevent jamming, along with a non-destructive, non-detachable connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the guide rods are welded to the support rods on both sides (cross-welded), then the mechanical strength and stability are improved, but the insertion of food support becomes difficult due to jamming and the structure adds material volume
Solution Approach 1:
The invention extracts the welding operation from both sides of the support rod, applying welding only on the inner side. This removes the protruding guide element ends that cause jamming during insertion, while maintaining sufficient mechanical strength through the single-side welding connection between the guide element and support rod.
Solution Approach 2:
The guide element is divided into a functional body portion and an end portion. The end portion is designed to be non-protruding relative to the support rod, separating the load-bearing function from the insertion-function, allowing smooth passage of food supports without compromising structural integrity.
2Reliability
If cross-welding is used on both sides, then the attachment reliability is improved, but the installation space requirement increases
Solution Approach 1:
The invention removes one welding operation from the bilateral cross-welding configuration, applying welding only on the inner side of the support rod. This extraction reduces the installation space requirements and material volume while maintaining sufficient attachment reliability for the guide element to function effectively.
Data Source
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AI summary
The invention relates to a device (1, 1') for holding a food support (9) in a cooking chamber (13) of a cooking appliance (11), which has a support (2, 2', 3, 3') which is used to hold the The food support (9) has at least one slide-in guide (8, 8') which is delimited by an upper and a lower guide element (6, 6', 7, 7'), the upper guide element (7') being at one end (71 ', 72') has a cross-sectional surface (71a', 72a') which is arranged opening onto a first support bar (4, 5) of the carrier (2', 3') and the guide element (7') at this point of contact with is connected to the first support rod (4, 5) in a holding manner. The invention also relates to a cooking appliance with a device (1').