Pivoting Dishwasher Sprayer for Tall and Wide Kitchenware

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Solution Overview

Problem

Dishwashers often fail to effectively clean tall, narrow kitchenware items like bottles and glasses due to inadequate water contact, and existing placement apparatuses occupy additional space and hinder basket utilization when not in use.

Innovation Solution

A dishwasher design featuring a spraying member that can pivot between vertical and horizontal positions, allowing for adjustable water distribution to accommodate different kitchenware shapes, with a conduit system enabling water transmission and a blocking mechanism to maintain high pressure when in horizontal position for wider items.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If placement apparatuses are used to clean tall narrow kitchenware, then washing efficiency is improved, but the available volume of the basket is decreased

Engineering Contradiction:
Improvewashing efficiencyVSAvoidavailable volume of basket
Core Design Contradiction:
ProductivityVSVolume of moving object

Solution Approach 1:

The spraying member is designed to perform multiple functions: it can be positioned vertically to clean tall narrow items like bottles and glasses, and horizontally to clean wide flat items like trays and plates. This multi-functionality eliminates the need for separate placement apparatuses, maintaining basket volume while achieving effective cleaning of various kitchenware types.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The spraying member is made movable and adjustable, allowing users to change its position between vertical and horizontal orientations. This dynamic capability enables a single device to adapt to different cleaning needs, replacing static placement apparatuses and maximizing basket utilization.

Inventive Principle:
Principle #15Dynamics

2Productivity

If spraying member is positioned vertically to clean tall narrow items, then washing of bottles and glasses is improved, but washing of wide flat items becomes difficult

Engineering Contradiction:
Improvewashing of tall narrow itemsVSAvoidwashing capability for different item shapes
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The spraying member can be freely adjusted between vertical and horizontal positions, allowing it to adapt to different kitchenware shapes. When vertical, it effectively cleans tall narrow items; when horizontal, it reaches wide flat surfaces, providing versatile washing capability for various item types.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

A single spraying member design performs both vertical and horizontal cleaning functions, making it universally applicable to different kitchenware geometries without requiring separate specialized devices for tall narrow items and wide flat items.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Area of stationary object

If multiple orifices are kept open for horizontal spraying, then water coverage area is increased, but water pressure decreases

Engineering Contradiction:
Improvewater coverage areaVSAvoidwater pressure
Core Design Contradiction:
Area of stationary objectVSStress or pressure

Solution Approach 1:

The blocking member provides selective control over orifice openings based on the spraying direction. When spraying horizontally, only certain orifices remain open while others are blocked, concentrating water flow to maintain pressure. This local quality control allows the system to optimize between coverage area and pressure depending on the specific cleaning need.

Inventive Principle:
Principle #3Local quality

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

Enhances washing efficiency by ensuring thorough cleaning of elongated and wide kitchenware with adjustable spraying member positions and high-pressure water distribution, facilitating convenient placement and easy cleaning of the conduit.

Implementation Method 1

A plurality of orifices are provided on the spraying member. Water received through the conduit is thus transmitted on kitchenware by means of the spraying member

Methodology Applied
Scientific EffectFluid dispersion through orifices:

Implementation Method 2

When the spraying member is in horizontal position, the orifices facing the blocking member are covered by means of the plugs. This enables the orifices kept open to transmit water with a higher pressure.

Methodology Applied
Scientific EffectPressure increase through orifice restriction:

Data Source

PatentEP3796825B1A dishwasher comprising spraying member
Publication Date: 2023.05.31 ARCELIK AS
  • EP3796825B1 patent drawingFigure 1
  • EP3796825B1 patent drawingFigure 2
  • EP3796825B1 patent drawingFigure 3

AI summary

The present invention relates to a dishwasher (1) comprising a body (2), a washing tub (3) in which the washing process is performed, a main supply line (4) enabling water transmission to the washing tub (3), a basket (5) provided on the washing tub (3), on which kitchenware are placed, at least one spraying member (6) enabling regional washing by transmitting the water received through the main supply line (4) to kitchenware, a plurality of orifices (8) provided on the spraying member (6), enabling water to be transmitted through the spraying member (6) to the washing tub (3), and a conduit (7) provided on the basket (5), enabling water transmission to the spraying member (6), whose one end is connected on the main supply line (4).