Laundry treating appliance having a door assembly
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Solution Overview
Problem
Laundry treating appliances face challenges in providing easy access to the treating chamber while maintaining safety and preventing laundry items from becoming trapped or stuck, especially with conventional door designs that restrict user visibility and loading convenience.
Innovation Solution
A laundry treating appliance design featuring a rotatable treating chamber with a slidable window panel and a hinged door assembly, where the window panel can move between raised and lowered positions to allow access without opening the door, and an angled bellows that encourages laundry items to slide back into the chamber, eliminating the need for a bowl portion and enhancing user visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional door assembly is used to close the access opening, then the treating chamber is sealed, but user visibility and loading convenience are restricted
Solution Approach 1:
The door assembly is segmented into multiple components: a fixed outer door panel and a movable inner window panel. This segmentation allows the window panel to slide independently within the door assembly, providing visibility and access without compromising the overall sealing when closed
Solution Approach 2:
The window panel is designed to be movable within the door assembly, transitioning between closed and open positions. This dynamic element allows users to view the treating chamber and load items without opening the entire door, maintaining sealing while improving convenience
2Volume of moving object
If the treating chamber opening is positioned at a lower height, then the design is more compact, but access through the front panel opening becomes more difficult
Solution Approach 1:
The window panel provides access in a vertical dimension by sliding up and down within the door assembly. This allows items to be loaded from above the lower treating chamber opening, effectively adding a vertical access dimension that compensates for the lower position
3Ease of operation
If a bowl portion is added to prevent laundry items from becoming trapped, then item retrieval is improved, but the device complexity increases
Solution Approach 1:
Instead of adding a bowl portion to catch items, the bellows is angled to actively direct items backward into the treating chamber using gravity and its inclined surface. This inverted approach prevents trapping without requiring additional containment structures
4Reliability
If the door assembly is made secure to prevent accidental opening, then safety is improved, but the ability to open from within for loading is reduced
Solution Approach 1:
The door assembly is segmented into a secure outer door panel and an accessible inner window panel. The window panel can be opened from within the treating chamber independently, while the outer door remains secure, providing controlled access without compromising overall security
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.