Movable Tub Front-Loading Washer for Easier Loading and Water Saving

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Solution Overview

Problem

Front-loading washing machines are inconvenient to use, particularly for elderly people, due to the need to stoop and crouch for loading and unloading clothes, and are inefficient in water conservation.

Innovation Solution

A front-loading washing machine design where the access port moves up and down within the front panel, allowing users to load and unload clothes without bending, and uses a driving mechanism to adjust the tub position for efficient washing with reduced water consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the access port is fixed at the lower front position, then the washing machine can be compact in size, but users must stoop and crouch to load and unload clothes, reducing ease of operation

Engineering Contradiction:
Improveease of loading and unloading clothesVSAvoidstructural complexity of access port mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The access port is transformed from a fixed structure to a movable one that can dynamically adjust its position between upper and lower locations. The tub assembly including the access port is tiltable between a first position (access port at upper location) and a second position (access port at lower location), allowing the system to adapt to different operational requirements and user needs.

Inventive Principle:
Principle #15Dynamics

2Productivity

If clothes are fully immersed in water for washing, then washing effectiveness is improved, but water consumption increases significantly

Engineering Contradiction:
Improvewashing effectivenessVSAvoidwater consumption
Core Design Contradiction:
ProductivityVSLoss of substance

Solution Approach 1:

The washing process utilizes periodic tilting actions of the tub assembly. The tub is tilted to allow water to drain and then returned to horizontal position to allow water to flow back over the clothes. This periodic action creates repeated wetting and tumbling cycles that effectively wash clothes without requiring continuous full immersion, thereby reducing overall water consumption while maintaining washing effectiveness.

Inventive Principle:
Principle #19Periodic action

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 design enhances user convenience, reduces clothes abrasion, and conserves water by allowing easy access and adjusting the tub position for efficient washing without the need for full water immersion.

Implementation Method 1

The cabinet has a bottom panel located at a bottom of the cabinet, and the damping vibration absorption frame mount is mounted on the bottom panel

Methodology Applied
Scientific EffectGravity: Gravitation

Data Source

PatentEP3199692B1Front-loading washing machine
Publication Date: 2019.01.09 WUXI LITTLE SWAN ELECTRIC CO LTD
  • EP3199692B1 patent drawingFigure 1
  • EP3199692B1 patent drawingFigure 2
  • EP3199692B1 patent drawingFigure 3

AI summary

The present disclosure discloses a front-loading washing machine (1) including a cabinet (100) having a front panel (110), wherein the front panel (110) is provided with an opening (111); a tub (200) having an access port for loading and unloading clothes, wherein the tub (200) is disposed in the cabinet (100) and configured in such a manner that the access port is capable of being moved up and down in the opening (111); a rotatable drum disposed in the tub (200); a door unit (300) mounted to the tub and configured to cover the access port; and a driving mechanism (400) configured to drive the tub (200) to move up and down, wherein the driving mechanism (400) is provided in the cabinet (100) and coupled with the tub (200). The front-loading washing machine (1) according to embodiments of the present disclosure has advantages of user-friendliness, low clothes abrasion, water savi ng and the like.