Lid retaining handle for cooking device
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Solution Overview
Problem
Cooking devices with lids connected by bands tend to experience relative sliding during lid movement, leading to potential separation and falling, especially with heavy ceramic lids, posing a risk of injury or damage.
Innovation Solution
A lid retaining handle that includes band interface portions to secure the band to the lid and lid interface portions to restrict movement, preventing the lid from separating from the mechanism by engaging the rim or ridge, thereby stabilizing the lid during opening and closing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the band is pulled tight about the lid during assembly, then the lid is securely held, but the band cannot accommodate lid movement between open and closed positions
Solution Approach 1:
The band is divided into multiple segments or links that can articulate relative to each other, allowing the band to change its effective length and configuration. This segmentation enables the band to accommodate lid movement between open and closed positions while maintaining secure attachment, resolving the contradiction between stability and adaptability.
Solution Approach 2:
The band is designed as a dynamic structure rather than a rigid one, with articulated joints or flexible elements that allow it to adapt its shape and length. This dynamic design enables the band to maintain tension and secure the lid in both open and closed positions, resolving the contradiction between maintaining stability and accommodating movement.
2Adaptability or versatility
If the band is not tightened sufficiently during assembly, then the lid can move freely, but the lid may slide or move relative to the band during operation
Solution Approach 1:
The segmented band design allows each segment to maintain contact with the lid surface while accommodating movement. The multiple contact points distributed along the segmented structure provide continuous frictional engagement, ensuring reliable connection even when the band is not tightly fastened, thus resolving the contradiction between movement freedom and connection reliability.
Solution Approach 2:
The band utilizes flexible material properties to conform to the lid surface and maintain continuous contact during movement. The flexibility allows the band to adapt to lid position changes while maintaining sufficient frictional force to prevent sliding, resolving the contradiction between movement freedom and connection reliability.
3Strength
If the lid is made from heavy ceramic material, then the lid provides thermal mass and durability, but the lid may uncontrollably fall and cause injury or damage
Solution Approach 1:
The articulated band mechanism acts as a counterbalancing system that provides continuous support force against the weight of the ceramic lid. The mechanical advantage provided by the articulated structure distributes the lid's weight across multiple contact points and provides upward support forces that counteract gravity, preventing uncontrolled falling and reducing injury hazard while maintaining the benefits of heavy ceramic construction.
Data Source
AI summary
A handle for a cooking device that limits movement of the device's lid relative to a band extending around the lid. The handle couples to the band and also engages a rim or ridge of the lid to resist movement of the band in a direction away from the rim or ridge and toward the lid's edge. The lid retaining handle has a grip for grasping by a user of the cooking device to open or close the lid relative to the cooking device's base.