Multifunction lifter for a laundry appliance
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Solution Overview
Problem
Laundry appliances lack an efficient system for separating particulate matter, such as lint and pet hair, during the drying process, which can lead to reduced performance and increased maintenance.
Innovation Solution
A multifunctional interface in the laundry appliance includes a lifter with an attachment receptacle that can accommodate various accessories like a particulate collecting roller, fluid dispenser, and consumable fabric softener, which are selectively removable and attachable to separate particulate from articles being processed, utilizing an outwardly biased receiver mechanism for easy installation and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a multifunctional lifter with attachment receptacle is added to the drum, then the appliance gains particulate removal capability and versatility, but the device complexity increases
Solution Approach 1:
The lifter is designed with a universal attachment receptacle that can accommodate multiple types of accessories (particulate removal rollers, fluid dispensers, fabric softeners), allowing a single component to serve multiple functions. This multi-functionality approach enables the appliance to perform particulate removal, fabric softening, and fluid dispensing operations using the same lifter structure, thereby improving versatility without proportionally increasing overall system complexity.
Solution Approach 2:
The lifter system is segmented into modular components: the main lifter body attached to the drum, the attachment receptacle, and interchangeable accessories. This segmentation allows the particulate removal functionality to be added as a separate, removable module rather than integrating it into the entire drum structure, thus managing complexity through modular design while maintaining adaptability.
2Ease of repair
If accessories are made selectively removable from the lifter, then ease of maintenance and replacement is improved, but the device complexity increases due to the receiver mechanism
Solution Approach 1:
The attachment receptacle incorporates an outwardly biased receiver mechanism that automatically engages and secures accessories when inserted, and allows easy removal when force is applied. The biased mechanism self-adjusts to accommodate the accessory without requiring manual adjustment or complex fastening procedures, enabling users to perform maintenance and replacement themselves without specialized tools or knowledge, thus improving ease of repair while keeping the mechanism relatively simple.
3Productivity
If the lifter rearranges articles during drying, then drying performance is improved, but the harmful effect of particulate accumulation increases
Solution Approach 1:
The particulate removal accessory is designed to extract and remove particulate matter (lint, dust, debris) from the articles being dried. The accessory typically includes a roller or brush mechanism that contacts the articles as they pass by the lifter, capturing particulate matter and preventing its accumulation in the drum. This extraction function directly addresses the harmful effect of particulate accumulation while preserving the article-rearranging function of the lifter for improved drying performance.
Solution Approach 2:
The system converts the potentially harmful particulate matter that accumulates during drying into a manageable byproduct. By positioning the particulate removal accessory at the lifter location where articles are already being moved and rearranged, the system captures particulate matter during the natural drying process, transforming what would be a harmful accumulation into a controlled removal operation that benefits overall drying performance.
Data Source
AI summary
A laundry appliance includes a drum that is disposed within a cabinet. The drum defines a processing space and rotationally operates during a drying operation. The drum cooperates with an airflow path to dehumidify articles being processed within the processing space. A lifter is attached to an inner surface of the drum. The lifter defines an attachment receptacle and rearranges the articles within the processing space during performance of the drying operation. A particulate removal accessory is selectively removable from the attachment receptacle and operates to separate particulate from the articles being processed.