Laundry treating appliance having a door assembly
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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, 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 directs laundry items 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 into the chamber is restricted and loading convenience is reduced
Solution Approach 1:
The door assembly is segmented into multiple components: a fixed door body, a movable window panel, and a bellows assembly. The window panel can be independently slid open to provide visibility and access without opening the entire door, maintaining sealing when closed while improving user convenience during operation.
2Shape
If the treating chamber opening is positioned at a lower height, then the appliance has a compact appearance, but access to the chamber becomes more difficult
Solution Approach 1:
The window panel provides a vertical dimension of access and visibility. Users can slide the window panel vertically to view or access items in the lower chamber without needing to open the entire door horizontally, making the lower positioning more operationally acceptable while maintaining the compact aesthetic.
3Adaptability or versatility
If a bellows is used to extend between the access opening and drum opening, then flexibility is provided, but laundry items may become trapped or stuck
Solution Approach 1:
The problematic bowl portion that could trap laundry items is completely removed from the design. The bellows is modified to have a smooth, continuous surface without凹陷 portions, extracting the harmful geometric feature while retaining the flexible connection function between the door assembly and drum opening.
Solution Approach 2:
Instead of having the bellows create a bowl-shaped recess to accommodate movement, the design inverts the approach by using a smooth, convex surface that actively directs laundry items away from potential trap points and back into the treating chamber through gravitational force.
4Device complexity
If the window panel is fixed in position, then the structure is simple, but user visibility and access are limited
Solution Approach 1:
The window panel is made dynamic by adding sliding capability along vertical guides. This allows the panel to move between a closed position (maintaining security and sealing) and an opened position (providing visibility and access), transforming a static structure into a dynamic one that adapts to different user needs without significantly increasing complexity.
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.