Dryer Drum Lifter Assembly for Fast, Leak-Free Coupling
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Solution Overview
Problem
Conventional clothes drying machines with lifters require extended coupling times and additional components, increasing costs and complexity, and often suffer from leaks during temporary coupling.
Innovation Solution
The use of guide ribs and coupling boss parts on the lifter, which are temporarily coupled to the drying drum before screw coupling, allowing for efficient and leak-free attachment without additional sheet members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a connecting member such as a screw is used to couple the lifter to the drying drum, then the coupling is secure and reliable, but the coupling time is extended and the cost is increased
Solution Approach 1:
The lifter is pre-assembled with the connecting member (screw) already attached to its coupling boss part before installation on the drying drum. This preliminary assembly allows the lifter to be quickly mounted onto the drying drum without requiring separate coupling operations, thereby reducing coupling time while maintaining secure attachment
Solution Approach 2:
The patent combines the lifter body and the connecting member into a single integrated assembly. The connecting member is permanently fixed to the coupling boss part of the lifter, merging two separate components (lifter and screw) into one unified unit that can be installed as a single operation, reducing both time and complexity
2Reliability
If a connecting member such as a screw is used to couple the lifter to the drying drum, then the coupling is secure, but the price of the drying machine is increased
Solution Approach 1:
The connecting member is integrated with the lifter body in a single manufacturing process, eliminating the need for separate procurement and installation of screws. This integration reduces the total component count and assembly steps, thereby lowering manufacturing costs while maintaining secure coupling
Solution Approach 2:
The lifter assembly is designed to be self-contained with the connecting member already attached, allowing it to be installed without requiring additional fastening operations or separate components. This self-service design simplifies the manufacturing process and reduces overall system cost
3Ease of operation
If temporary coupling is performed before screw coupling, then the lifter can be properly positioned, but a separate sheet member must be attached to prevent leaks
Solution Approach 1:
The patent merges the temporary coupling function and the final secure coupling function into a single integrated operation. The pre-attached connecting member allows the lifter to be both temporarily positioned and permanently secured in one continuous action, eliminating the need for separate sheet members and reducing structural complexity
Solution Approach 2:
The patent extracts the leak prevention function from the coupling structure by designing the connecting member and coupling boss part to create a leak-proof connection inherently, without requiring additional sheet members or sealing components. This extraction simplifies the overall coupling structure while maintaining effectiveness
Data Source
AI summary
A drying machine has a cabinet, a drying drum disposed at an inside the cabinet to accommodate a laundry, and configured to rotate by receiving rotating force from a driving source, and at least one lifter provided at an inner circumferential surface of the drying drum, and configured to have the laundry move at an inside the drying drum. the at least one lifter includes at least one coupling boss part configured to be coupled to the drying drum, and at least one guide rib protrudedly provided to pass through the drying drum so as to temporarily couple the at least one lifter to the drying drum, so that the adhesiveness is increased at the time of assembling the at least one lifter to the drying drum, thereby preventing the vibration and water leakage during rotation of the drying drum.