Laundry treating apparatus
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Solution Overview
Problem
Existing laundry treating apparatuses face challenges in adjusting the interval between lifters in a drum, leading to inefficient washing due to constant lifter spacing, which results in some laundry not coming into contact with lifters, especially in drums of varying lengths.
Innovation Solution
The apparatus features a drum with two sets of mounting slots for lifters, allowing the installation position to be adjusted based on which group of slots the insertion protrusions are inserted into, enabling flexible adjustment of lifter spacing according to drum capacity, ensuring all laundry comes into contact with lifters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If the drum length is increased to provide larger capacity, then the drum volume is increased, but the interval between lifters becomes excessively large causing laundry at the ends to not contact lifters
Solution Approach 1:
The lifter installation structure enables dynamic adjustment of lifter positions along the drum's front-rear direction. Multiple mounting holes are provided at different positions, allowing the lifter installation position to be changed according to drum capacity, thereby maintaining effective laundry contact across various drum sizes.
2Volume of stationary object
If the drum length is decreased to provide smaller capacity, then the drum volume is decreased, but the constant lifter interval causes reduced washing effectiveness
Solution Approach 1:
The lifter installation structure enables dynamic adjustment of lifter positions along the drum's front-rear direction. Multiple mounting holes are provided at different positions, allowing the lifter installation position to be changed according to drum capacity, thereby maintaining effective laundry contact across various drum sizes.
3Productivity
If separate lifter designs are created for different drum lengths, then the washing effectiveness is optimized for each drum size, but the manufacturing complexity and cost increase
Solution Approach 1:
A single universal lifter design is used across different drum capacities. The lifter can be installed at multiple positions along the drum's front-rear direction by selecting different mounting holes, allowing one lifter design to serve multiple drum sizes without requiring separate designs for each capacity.
4Ease of manufacture
If the lifter interval is kept constant for all drum sizes, then the manufacturing process is simplified, but the laundry at the front and rear ends cannot contact the lifters in large capacity drums
Solution Approach 1:
The lifter installation structure enables dynamic adjustment of lifter positions along the drum's front-rear direction. Multiple mounting holes are provided at different positions, allowing the lifter installation position to be changed according to drum capacity, thereby maintaining effective laundry contact across various drum sizes.
Data Source
Figure 1
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Figure 4
AI summary
A laundry treating apparatus according to the present disclosure includes a drum (51) configured to rotate about a rotation axis extending in a front-rear direction, and first and second lifters (61a, 61b, 62a, 62b, 63a, 63b) disposed on the drum in the front-rear direction. The first lifter includes at least one insertion protrusion (627), the drum has one or more mounting slots in a first group and one or more mounting slots in a second group, the mounting slot in the second group (G2) is formed in a region shifted rearward within a range in which the mounting slot in the second group partially overlaps the mounting slot in the first group (G1), and the at least one insertion protrusion is selectively inserted into the mounting slot in the first group or the mounting slot in the second group.