Washing Machine Dispenser Handle Plug Connection for Play-Free Assembly
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Solution Overview
Problem
Existing washing machine designs face challenges in achieving a play-free connection between the dispensing bowl and the bowl handle without additional components like screws, which complicates assembly and stability.
Innovation Solution
A plug-in device with a latching mechanism, featuring a hollow profile and latching hooks, allows for a vertically oriented connection that ensures a stable, backlash-free assembly without additional tools, utilizing a 3-point connection for secure positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a horizontal connection between dispensing bowl and bowl handle is used without additional components, then assembly is simplified, but a play-free connection cannot be achieved
Solution Approach 1:
The patent transitions from horizontal connection to vertical connection, changing the dimensional orientation of the assembly process. The bowl handle is inserted vertically into the dispensing bowl from above, enabling a play-free connection while maintaining simple assembly without additional components.
Solution Approach 2:
The connection geometry employs asymmetric design where the bowl handle has a specific insertion geometry that fits into a corresponding recess in the dispensing bowl. This asymmetric pairing ensures proper positioning and eliminates play while allowing tool-free assembly.
2Reliability
If multiple components and assembly tools are used to achieve a stable connection, then connection stability is improved, but assembly complexity and cost increase
Solution Approach 1:
The patent merges the connection function into the basic structure of the bowl handle and dispensing bowl themselves. The bowl handle incorporates insertion geometry that directly engages with the dispensing bowl, combining structural support and connection functionality into single components rather than requiring separate fasteners.
Solution Approach 2:
The connection system is designed to be self-aligning and self-securing. The vertical insertion of the bowl handle into the dispensing bowl automatically positions the components correctly and creates a play-free connection without requiring external tools or additional assembly steps.
3Ease of operation
If a vertical plug-in connection is used, then assembly is simplified and component count is reduced, but positioning precision must be ensured
Solution Approach 1:
The dispensing bowl is designed with a pre-formed insertion opening and positioning geometry that guides the bowl handle into the correct position during vertical insertion. This preliminary preparation of the receiving structure ensures accurate positioning without requiring high-precision machining during assembly.
Solution Approach 2:
The connection interface features localized geometric features such as a specific insertion opening shape and corresponding handle geometry that ensure precise positioning. These localized features concentrate the positioning function in specific areas, ensuring accuracy while keeping the rest of the components simple.
Data Source
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AI summary
The invention relates to an arrangement for a household appliance having a dispensing compartment (6) and a molded handle (1) disposed on the dispensing compartment (6), wherein the dispensing compartment (6) is connected to the molded handle (1) by means of a plug connector (2, 3, 4, 7, 8, 9).