Washer Door Deflector Geometry to Shield Bellows During Loading
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Solution Overview
Problem
Conventional laundry appliances face challenges in preventing clothing from contacting the bellows and in efficiently loading/unloading laundry, particularly with horizontal-axis washers, which often require fishbowl-style glass doors, limiting design flexibility and user access.
Innovation Solution
Incorporating a deflector that extends along the perimeter of the aperture, overlapping the bellows, with a deeper bottom section and sloping sides to guide laundry into the drum, allowing for the use of flat panel or sliding glass doors and enhancing user access while preventing contact with the bellows.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a bellows is used to seal the aperture between the cabinet and drum, then sealing effectiveness is improved, but clothing may contact the bellows causing contamination and design flexibility is reduced
Solution Approach 1:
The deflector acts as an intermediary component positioned between the bellows and the drum opening. It redirects laundry away from the bellows while maintaining the sealing function, thus preventing clothing contact with the bellows without compromising sealing effectiveness.
Solution Approach 2:
The solution segments the functions by separating the sealing role (bellows) from the laundry guidance role (deflector). This allows each component to perform its specific function optimally without interference, preventing clothing from contacting the bellows while maintaining effective sealing.
2Ease of operation
If a fishbowl-style glass door is used in horizontal-axis washers, then user access is improved, but design flexibility is limited
Solution Approach 1:
The deflector serves as a mediator that enables the use of simpler flat panel or sliding glass doors by redirecting laundry away from the bellows area. This eliminates the need for complex fishbowl-style doors while maintaining user access, thereby improving design flexibility.
Solution Approach 2:
The complex fishbowl-style door design is extracted from the requirement. The deflector takes over the function of protecting the bellows area, allowing the door to be simplified to a flat panel or sliding glass design, thus improving design flexibility without sacrificing user access.
3Productivity
If the deflector extends deeper into the drum, then laundry guidance effectiveness is improved, but device complexity increases
Solution Approach 1:
The deflector is designed with varying depth along its length, extending deeper only in the specific area where laundry redirection is most needed. This localized approach improves laundry guidance effectiveness while minimizing the overall complexity and material usage of the deflector structure.
Solution Approach 2:
The deflector design allows for dynamic adjustment of its extension depth based on specific operational requirements. The structure can be configured to extend deeper into the drum when maximum laundry guidance is needed, while maintaining a simpler profile in other areas, thus balancing effectiveness with complexity.
Data Source
AI summary
A laundry appliance includes a cabinet defining an aperture in a front surface thereof. A drum is disposed within the cabinet. The drum defines an access opening that aligns with the aperture. A door is coupled to the cabinet and is operable between closed and opened positions relative to the aperture. A bellows extends along a perimeter of the aperture and proximate the access opening. A deflector extends along at least a portion of the perimeter of the aperture. The deflector extends into an interior of the drum over the bellows.