Drum Washer Preventing Member for Laundry Gap Blocking
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Solution Overview
Problem
Conventional drum type washing machines face issues where laundry can get stuck between the tub and the drum due to vibrations and collisions, leading to damage and noise during the washing and spinning cycles.
Innovation Solution
A flexible preventing member, such as a gasket or brush, is used to prevent laundry from entering the gap between the tub and the drum, with one end connected to the drum and the other end contacting the tub or drum door, which separates at high speeds to prevent noise and damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If a gasket is applied to cover the door and connect the tub and drum, then the distance between door and tub/drum is reduced, but laundry still gets stuck between the inclined surface of the door and the end of tub/drum
Solution Approach 1:
A preventing member is introduced as an intermediary component between the drum and the tub-door assembly. This member actively blocks the gap where laundry would otherwise become trapped, serving as a mediator that prevents the harmful interaction between laundry and the gap space.
Solution Approach 2:
The preventing member is designed to be movable relative to the drum, allowing it to dynamically adjust its position. During high-speed rotation, centrifugal force causes the preventing member to move outward, separating from the tub or drum door to avoid interference and noise while maintaining its laundry-prevention function at lower speeds.
2Productivity
If the drum rotates and vibrates during washing, then washing function is achieved, but laundry may be dropped and stuck between the cabinet and the tub through the distance
Solution Approach 1:
The preventing member acts as an intermediary barrier that blocks the path between the drum and the tub-door gap. It prevents laundry from being dropped during drum vibration and rotation, thereby eliminating the harmful effect of laundry getting stuck while allowing the washing function to proceed.
3Duration of action of moving object
If the drum is repeatedly rotating/stopping during washing, then washing cycles are completed, but the tub may be collided against the drum resulting in damage and noise
Solution Approach 1:
The preventing member is designed with dynamic movement capability that allows it to separate from the tub or drum door during high-speed rotation. This dynamic separation prevents contact and potential collision damage while minimizing noise generation during the spinning phase of the washing cycle.
Solution Approach 2:
The preventing member serves as a protective element that is positioned in advance to prevent direct contact and collision between the tub and drum. By being present before collision can occur, it cushions against potential damage and noise generation during repeated rotation and stopping cycles.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively prevents laundry from getting stuck and reduces noise and damage by ensuring the preventing member is flexible enough to separate during high-speed spinning, thus minimizing friction and collision-induced noise and damage.
Implementation Method 1
a flexible preventing member, such as a gasket or brush, is used to prevent laundry from entering the gap between the tub and the drum, with one end connected to the drum and the other end contacting the tub or drum door, which separates at high speeds to prevent noise and damage
Data Source
AI summary
A drum type washing machine is disclosed. An object of the present invention is to provide a drum type washing machine having a preventing member which can structurally prevent the laundry from coming between a tub and a drum. When the drum is stopped or rotated at a low speed, an end of the preventing member is in contact with a drum door or the tub. When the drum is rotated at a high speed, the preventing member is separated apart from the drum door or the tub by centrifugal force.