Movable Salt Container Locking for Easier Washing Machine Refilling

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Solution Overview

Problem

Users face difficulty in accessing and adding salt to the salt container within washing machines, as it is often located inside the body, making it hard to reach and fill.

Innovation Solution

A washing machine design featuring a locking element that allows users to easily access the salt container by moving it in conjunction with the dispenser, with positions that enable either independent access to the dispenser or both the dispenser and salt container, using a pusher, latch, connector, and flexible member to facilitate easy salt addition.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the salt container is placed inside the washing machine body, then it occupies less space and maintains a compact structure, but it becomes difficult for users to access and add salt

Engineering Contradiction:
Improvespace occupationVSAvoidaccessibility
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The salt container is designed to be movable rather than fixed, allowing it to be easily removed from the washing machine body by users. The container can be pulled out along a guiding direction through the interaction of the pushing portion and receiving portion structures, enabling convenient salt refilling while maintaining compact storage when installed.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the salt container is made easily accessible, then users can conveniently add salt, but the container may be accidentally removed or misplaced

Engineering Contradiction:
ImproveaccessibilityVSAvoidstable installation
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The design incorporates preliminary anti-action through the interaction between the pushing portion and receiving portion. The receiving portion includes positioning protrusions that engage with corresponding features on the salt container, preventing accidental removal while allowing intentional extraction when users need to refill salt.

Inventive Principle:
Principle #9Preliminary anti-action

Solution Approach 2:

The salt container system is segmented into separate functional components: the container body, the pushing portion for extraction, and the receiving portion with positioning features. This segmentation allows independent optimization of each component for both easy removal and secure installation.

Inventive Principle:
Principle #1Segmentation

3Reliability

If a locking mechanism is added to control access, then accidental removal is prevented, but the structure becomes more complex

Engineering Contradiction:
Improvestable installationVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The locking and unlocking function is achieved through self-service mechanism where the pushing portion automatically interacts with the receiving portion. When the container is pulled, the pushing portion engages with the receiving portion's positioning protrusions to guide removal without requiring additional locks or complex fastening systems.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP2798110B1A washing machine comprising a salt container
Publication Date: 2016.03.23 ARCELIK AS
  • EP2798110B1 patent drawingFigure 1~2
  • EP2798110B1 patent drawingFigure 3~4
  • EP2798110B1 patent drawingFigure 5~6

AI summary

The present invention relates to a washing machine (1) comprising a body (2), a panel (3) situated on the body (2), a dispenser (4) disposed on the panel (3) and wherein cleaning agents like detergent and softener are placed and a salt container (5) that provides the softening of the water.