Removable Agitator Design for Tool-Free Washing Machine Versatility
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Users of vertical axis washing machines face limited flexibility in choosing the type of agitation element for different washing operations, as existing agitation elements are typically fixed and require tool-based removal, restricting the ability to switch between single-action, dual-action, and impeller types.
Innovation Solution
A washing machine design featuring a rotatable impeller base with an extended post and connector bar system, allowing for the easy removal and attachment of agitation elements without tools, enabling users to switch between different agitation types based on load requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed agitation element is used in the washing machine, then the structure is simple and reliable, but the user cannot switch between different agitation types (single-action, dual-action, impeller)
Solution Approach 1:
The agitation element is divided into separate modular components: an impeller base with mounting bracket and removable agitation elements (single-action, dual-action, or impeller types). This segmentation allows users to detach and replace different agitation element types by manually manipulating the engagement feature, providing versatility while maintaining a relatively simple overall structure.
2Ease of operation
If traditional fixed agitation elements are used, then manufacturing and installation are straightforward, but tool-based removal is required which reduces ease of operation
Solution Approach 1:
The agitation element incorporates an engagement feature with a protrusion and corresponding recess that allows manual attachment and detachment without requiring tools. Users can easily install or remove different agitation elements by simply aligning and pushing them into place, making the system self-serviceable and significantly reducing the time and effort needed for replacement.
3Adaptability or versatility
If different agitation elements are provided for different washing needs, then user flexibility is improved, but the device complexity and number of parts increases
Solution Approach 1:
The impeller base is designed with a universal mounting bracket and engagement feature that can accommodate multiple types of agitation elements (single-action, dual-action, and impeller types). This universal design allows one base structure to support various agitation element configurations, providing user flexibility and adaptability without proportionally increasing the overall device complexity.
Data Source
AI summary
A washing machine appliance may include a tub, a basket, an impeller base, an extended post, and a connector bar. The basket may be rotatably positioned within the tub. The impeller base may include a mounting face disposed radially inward from one or more impeller fins. The mounting face may include a mounting bracket defining one or more attachment slots. The extended post may be removably attached to the impeller base and include a base body, an auger fin, and a mating face. The base body may define an interior cavity. The auger fin may extend radially from the base body. The mating face may include a mating collar defining one or more attachment rails corresponding to the one or more attachment slots. The connector bar may be selectively received within the interior cavity.