Mixing vessel
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Solution Overview
Problem
Conventional mixing vessels face difficulties in smooth detachment of the inner lid due to the flat annular shape of the flange, leading to deformation and insecurity in the assembled state, making it challenging to wash and maintain.
Innovation Solution
Incorporating an inner lid with a screwing portion, through-holes, and a finger catching portion that protrudes downward, allowing for secure detachment and mounting of the inner lid to the outer lid, reducing user labor and improving stirring efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the flange is made flat annular shape for simple structure, then manufacturing is easier, but the flange deforms when finger is applied making detachment difficult
Solution Approach 1:
The flange is designed with a curved surface instead of a flat annular shape. Specifically, the flange has a curvature radius R1 that is smaller than the curvature radius R2 of the inner lid main body portion, creating a stepped curved surface configuration. This curvature allows the finger to be applied to the upward surface of the flange without causing deformation, enabling smooth detachment of the inner lid from the outer lid.
2Device complexity
If the flange is made flat annular shape for simple structure, then device complexity is reduced, but repeated detachment causes creases leading to insecure mounting
Solution Approach 1:
The curved surface design of the flange prevents crease formation during repeated detachment operations. The curvature radius R1 is specifically designed to be smaller than R2, creating a stepped configuration that maintains structural integrity and prevents the flange from deforming into a non-circular shape, ensuring reliable mounting.
Solution Approach 2:
The invention changes the geometric parameters of the flange by introducing specific curvature radii (R1 and R2) with a defined relationship (R1 < R2). This parameter change transforms the flange from a flat, deformation-prone structure to a curved, deformation-resistant structure that maintains reliability over repeated use.
3Ease of operation
If finger is applied to outward surface of flange for detachment, then detachment is possible, but the flange deforms from circular to non-circular shape
Solution Approach 1:
The flange is designed with a curved upward surface having a specific curvature radius R1. This curvature allows the finger to be applied to the upward surface rather than the outward surface, distributing the applied force evenly and preventing the flange from deforming from a circular shape to a non-circular shape during detachment operations.
Data Source
AI summary
The present invention provides a mixing vessel 1 provided with: a bottomed vessel main body 2 in which an internal space 2S opens upward through an upper edge opening portion 21; an outer lid 3 capable of sealing the opening portion 21 of the vessel main body 2; and an inner lid 4 disposed inside the vessel main body 2; wherein the inner lid 4 is provided with a cylindrical peripheral wall portion 42 having an inner lid screwing portion (fourth thread portion 41) which can be screwed to the outer lid 3, an inner lid main body portion 43 in which multiple through-holes 45 penetrating in a height direction are formed in a dispersed manner, and a finger catching portion 48 which protrudes downward from the inner lid main body portion 43 and against which a finger can catch. By adopting this configuration, it is possible to provide a mixing vessel 1 with which an operation to detach the inner lid 4 from the outer lid 3 can be performed smoothly and appropriately.