Skewer Rack Assembly with Heat-Directing Base and Locking Grooves
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Solution Overview
Problem
Existing skewer racks for kebobs suffer from issues such as uneven cooking due to lack of locking mechanisms, exposure of wooden skewer handles and tips to direct heat, difficulty in rotating skewers, and challenging cleaning and storage due to sharp angles and designs that limit the ability to cook flat foods efficiently.
Innovation Solution
A set of independent opposing metal stands with an upward slanted base to direct heat centrally between racks, a top locking groove design for incremental angle adjustments, semi-circle grooves for easy skewer rotation, and rounded edges for cleaning, allowing for flexible skewer length accommodation and nesting for storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a foldable rectangular stand design is used to accommodate skewers, then storage space efficiency is improved, but cleaning difficulty increases due to filthy debris accumulation at folding parts
Solution Approach 1:
The rack is divided into separate folding legs with distinct functional zones - smooth exterior surfaces for cleaning and structured interior compartments for debris containment. This segmentation allows the cleaning-friendly exterior while maintaining the foldable structure for compact storage.
Solution Approach 2:
The filthy debris collection areas are extracted and contained within specific interior compartments of the folding structure, separated from the exterior surfaces. This allows the main body to maintain smooth, cleanable surfaces while the extracted debris zones are confined to accessible interior spaces.
2Device complexity
If locking grooves are omitted from the rack design, then device complexity is reduced, but cooking uniformity deteriorates as suspended kabob rotates to its center of gravity
Solution Approach 1:
Locking grooves are strategically placed at specific locations on the rack structure - not throughout the entire device. The grooves are positioned to engage with corresponding features on the skewers at key points, providing stabilization where needed while maintaining overall structural simplicity and manufacturing ease.
3Strength
If the rack base is designed with sharp acute angle bends for stability, then structural strength is improved, but cleaning difficulty increases due to grease and filthy debris collection
Solution Approach 1:
The rack base employs asymmetric angle designs - sharp acute angles are used internally for structural stability and grease channeling, while exterior surfaces maintain smoother, more gradual transitions that are easier to clean. This asymmetric approach allows both stability and cleanability to be optimized in their respective zones.
Solution Approach 2:
The sharp acute angle bends that would normally collect grease are designed to channel and direct grease flow toward specific drainage or collection points rather than allowing random accumulation. The harmful grease collection issue is converted into a controlled flow path that facilitates easier cleaning and maintenance.
4Productivity
If wooden skewer handles and tips are exposed to direct heat, then cooking efficiency is improved, but skewer integrity deteriorates due to burning
Solution Approach 1:
The rack elevates skewers from the horizontal grill plane to a vertical or angled suspension position. This dimensional change positions the skewer handles and tips above the direct heat zone while keeping the food portion in the cooking area, allowing efficient cooking without burning the wooden skewers.
Solution Approach 2:
The rack structure acts as an intermediary between the heat source and the skewers. It positions and holds the skewers at optimal angles and heights, mediating the heat exposure to ensure the food cooks efficiently while the wooden skewer portions remain protected from direct flame contact.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides stable and even cooking by protecting wooden skewer ends from heat, enabling easy rotation and cleaning, and efficient storage, while accommodating various skewer lengths and orientations for improved cooking performance.
Implementation Method 1
The base of the racks is bent to less than a 45-degree angle to direct heat away from the exposed wooden handle and tip and toward the central cooking area between the opposing racks to limit burning the wooden handle and tip outside of the opposing racks
Data Source
AI summary
A pair of steel skewer racks can be used with flat skewers straddling them. A slanted base face outbound from the vertical support walls to create a wing for rising heat. The inner edge of the slanted base rises slightly above the grill under the vertical support wall. Heat is directed into the central cooking area and away from the skewer tip and handle exposed to the outside area of the opposing racks. The chef's rack has a horizontal groove with a locking lip to lock a food laden skewer in either an up or a down orientation. Vertical slots provide the skewer to be locked at a 90-degree orientation. At the top of the rear rack are semi-circle grooves. The independent racks can be separated to accommodate any length skewer or nested together.