Sliding Washer Door Assembly to Prevent Laundry Entrapment
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Solution Overview
Problem
Laundry treating appliances face challenges in providing efficient access to the treating chamber while maintaining safety and preventing laundry items from becoming trapped or stuck, particularly due to the design of the door and bellows configuration.
Innovation Solution
The appliance features a slidable window panel and a hinged door assembly that allows for selective access to the treating chamber, with an optional angled bellows that reduces the risk of laundry items becoming trapped and enhances user visibility and loading convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional door assembly with a fixed panel is used, then the structure is simple and reliable, but access to the treating chamber is limited and requires full door opening
Solution Approach 1:
The door assembly is segmented into a fixed outer door and a separate movable inner panel (window panel) that can slide independently. This allows the inner panel to be opened or lowered to provide access to the treating chamber without requiring the entire door assembly to be opened, thus improving ease of operation while maintaining a relatively simple overall structure.
2Reliability
If a straight bellows configuration is used, then the structure is simple, but laundry items can become trapped or stuck between the bellows and door assembly
Solution Approach 1:
The bellows is configured with an angled or offset arrangement rather than a straight configuration. This asymmetric positioning creates a gap or clearance between the bellows and the door assembly that prevents laundry items from becoming trapped, while adding only minimal complexity to the overall structure.
3Ease of operation
If the window panel is fixed in position, then the structure is simple and reliable, but user visibility and loading convenience are reduced
Solution Approach 1:
The inner panel is designed to be movable rather than fixed, allowing it to slide horizontally and be lowered vertically. This dynamic capability enables users to adjust the panel position for better visibility and easier loading of laundry items, while the sliding mechanism remains relatively simple in design.
4Productivity
If the door assembly requires full opening for access, then safety standards are met, but loading efficiency and user convenience are reduced
Solution Approach 1:
The door assembly is divided into a fixed outer door that remains closed for safety and a separate movable inner panel that can be opened independently. This segmentation allows users to open only the necessary portion of the access opening for loading laundry items, improving loading efficiency without compromising the safety provided by the closed outer door.
Data Source
AI summary
A laundry treating appliance includes a chassis defining an interior and having a front panel defining a front panel opening. A rotatable treating chamber is located within the interior and accessible through the front panel opening. A door assembly is mounted to the chassis for movement between opened and closed positions to selectively open or close the front panel opening. The door assembly includes a window or panel slidable between first and second positions.