Electromotive cooking device with a coupling
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Solution Overview
Problem
In electromotive kitchen appliances, misalignment of coupling components during assembly leads to increased assembly difficulty, wear, and unwanted noise, which conventional solutions like damping materials or different material couplings are costly and complex to implement.
Innovation Solution
The use of a clutch with a plug-in piston and guide elements featuring curved surfaces, which correct initial misalignments and ensure proper insertion, eliminating the need for costly damping materials and simplifying the assembly process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional damping materials or different material couplings are used to reduce noise, then noise is reduced, but device complexity and manufacturing cost increase
Solution Approach 1:
The guide elements are designed with curved surfaces (spherical or ellipsoidal caps) that guide the plug-in piston during insertion. This curvature allows automatic alignment correction without requiring damping materials or complex multi-material constructions, thereby reducing noise while maintaining simple device structure.
2Productivity
If coupling components are assembled with slight misalignment, then assembly is faster, but wear and noise increase
Solution Approach 1:
The guide elements with curved surfaces perform preliminary alignment correction during the insertion process itself. As the plug-in piston slides along the curved guide surfaces, misalignment is automatically corrected before final engagement, ensuring proper alignment without requiring slower, more precise manual assembly procedures.
Solution Approach 2:
The guide elements act as intermediary components between the plug-in piston and the final coupled position. These guide elements mediate the insertion process by providing a controlled path that corrects misalignment, preventing direct harmful contact between misaligned toothings and ensuring reliable engagement.
3Reliability
If precise alignment of coupling components is ensured, then wear and noise are reduced, but assembly difficulty increases
Solution Approach 1:
The guide elements with curved surfaces enable the coupling components to self-align during insertion. The geometry of the guide elements automatically guides the plug-in piston into the correct position, eliminating the need for external alignment tools or complex manual adjustment procedures while ensuring precise engagement.
Data Source
Figure 1
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AI summary
The invention relates to an electromotive cooking device comprising a coupling that has a coupling part (10, 40) and a plug-in piston for transmitting a rotational movement from a motor output shaft to the rotational device. The coupling part comprises a plug-in opening (11, 41) for receiving at least one part of a plug-in piston (20, 50). A plurality of guide elements (13, 43) for the plug-in piston are arranged on said plug-in opening (11, 41) and each have a convex surface. Alternatively, or additionally, said plug-in piston comprises a crest (21) having a plurality of convex guide segments (23).