A cutlery tray for dishwasher

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing cutlery trays in dishwashers face issues with undesirable variations in operating configuration due to vibrations and water jets, leading to unstable positioning of inserts, which affects load capacity and flexibility.

Innovation Solution

A cutlery tray with a wire frame structure and movable inserts, featuring releasable coupling mechanisms between inserts, including a telescopic intermediate insert, to prevent unwanted movement and allow for various configurations, ensuring stable and flexible positioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the inserts are made movable on the frame to allow configuration changes, then the adaptability and flexibility of the tray is improved, but the stability and reliability of the operating configuration deteriorates due to vibrations and water jets causing unwanted variations

Engineering Contradiction:
Improveflexibility of tray configurationVSAvoidstability of insert positioning
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent applies the dynamics principle by making the inserts movable relative to the frame through sliding mechanisms. The inserts can be displaced horizontally and vertically along guide rails and can be locked into different positions, allowing the tray configuration to adapt to different washing needs while maintaining stability when locked in place

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent uses intermediate coupling elements and locking mechanisms as mediators between the inserts and the frame. These intermediaries transmit and control the movement of inserts, allowing flexible repositioning while preventing unwanted variations caused by vibrations and water jets during operation

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If the lateral inserts are moved horizontally above the intermediate insert to reduce plan dimension, then the ease of operation for accommodating bulky items is improved, but the load capacity of the tray deteriorates

Engineering Contradiction:
Improveaccessibility for bulky itemsVSAvoidload capacity of tray
Core Design Contradiction:
Ease of operationVSQuantity of substance

Solution Approach 1:

The lateral inserts are designed to be dynamically repositionable horizontally above the intermediate insert. This allows users to move the lateral inserts to access bulky items in the center area, and then reposition them to maximize load capacity when washing standard cutlery sets

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The inserts can be periodically repositioned between different configurations - one position optimized for accessing bulky items and another position optimized for maximum load capacity - allowing the tray to adapt to different washing scenarios

Inventive Principle:
Principle #19Periodic action

Data Source

PatentEP2938242B1A cutlery tray for dishwasher
Publication Date: 2019.01.30 WHIRLPOOL EMEA SPA
  • EP2938242B1 patent drawingFigure 1
  • EP2938242B1 patent drawingFigure 2
  • EP2938242B1 patent drawingFigure 3~4

AI summary

A dishwasher cutlery tray comprises a frame (30) which is withdrawably mounted in a wash-tub and a plurality of inserts (40a, 40b, 50) arranged in a movable manner on the frame (30) and on which tableware items to be washed can be arranged. At least one first insert (40a) and one second insert (40b) are arranged on the frame (30) in a horizontally displaceable manner. The cutlery tray (20) further comprises first coupling means (50) for coupling in a releasable manner the first insert (40a) to the second insert (40b) in such a way that, in a condition of coupling of the first coupling means (50), the first insert (40a) is horizontally displaceable on the frame (30) together with the second insert (40b) and in a condition of release of the coupling means (50) the first insert (40a) and the second insert (40b) are horizontally displaceable on the frame ( 30) independently to each another. In a preferred embodiment, the cutlery tray further comprises second coupling means (60, 70) to lock in a releasable manner each of the first insert (40a) and the second insert (40b) to the frame (30), in a respective stop position, in which it is prevented a horizontal displacement of the first insert (40a) or the second insert (40b) or the first insert (40a) together with the second insert (40b).