Folding Handle Design for Internal Receptacle Balancing and Removal
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Solution Overview
Problem
The existing internal receptacles for household food preparation appliances are difficult to handle and produce, especially when the contents are not uniformly distributed or are hot, due to the absence of a cover and the complexity of folding handles.
Innovation Solution
The internal receptacle features two folding handles pivotally mounted between folded and raised positions, symmetrically arranged around the tank, with flexible support and gripping members to facilitate handling and balancing, and a main lid that compresses these handles to immobilize the receptacle within the working container, enhancing ease of use and production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single folding handle is used in the internal receptacle, then the structure is simple, but the handling and balancing of the receptacle is difficult
Solution Approach 1:
The patent applies asymmetry by positioning the single folding handle off-center on the internal receptacle body. This asymmetric placement allows the handle to serve dual functions: providing leverage for lifting the receptacle and acting as a balancing counterweight when the receptacle contains unevenly distributed food contents, thereby resolving the contradiction between structural simplicity and operational ease
Solution Approach 2:
The folding handle is designed to perform multiple functions: it serves as a lifting grip, a balancing counterweight, and a structural support element. This multi-functionality allows a single simple component to address multiple handling requirements, resolving the contradiction between device complexity and operational ease
2Volume of moving object
If the folding handle is positioned inside the working receptacle enclosure, then the structure is compact, but the removal of the internal receptacle becomes delicate when contents are hot or unevenly distributed
Solution Approach 1:
The handle is designed as a dynamic folding mechanism that can transition between folded and extended positions. When removal is needed, the handle can be extended to provide leverage and balance, making removal easier even when contents are hot or unevenly distributed, while maintaining compactness during normal operation
3Ease of operation
If symmetric folding handles are used on the internal receptacle, then the balancing and handling is improved, but the device complexity increases
Solution Approach 1:
The patent deliberately chooses asymmetry over symmetry by implementing a single off-center folding handle rather than multiple symmetric handles. This asymmetric design achieves effective balancing and handling through strategic placement, avoiding the increased complexity that would result from adding multiple symmetric handle components
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
This design simplifies the handling and production of the internal receptacle by providing easier gripping and balancing, improved heat exchange, and secure immobilization within the appliance, making it easier to remove even when contents are hot and unevenly distributed.
Implementation Method 1
associated with an elastic return element
Implementation Method 2
the main lid closing the working container takes pressing on the folding handles arranged in the folded position
Implementation Method 3
the tank is metallic. This arrangement makes it possible to improve heat exchange with the contents of the tank
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a food preparation appliance comprising a work container (3), a main lid (9) closing the work container (3), a rotating drive element arranged in the work container (3), an internal receptacle disposed in the work container (3), and an accessory rotating working tool arranged in the internal receptacle, the internal receptacle comprising a bowl (16) having a bottom and a side wall having an upper edge (19). According to the invention, the internal receptacle has two folding handles (20) pivotally mounted between a folded position and a raised position, the two folding handles (20) preferably being arranged symmetrically with respect to the bowl (16).and the main lid (9) closing the working container (3) rests on the folding handles (20) arranged in the folded position when the inner receptacle is in place in the working container (3).