Foam Discharge Container with Pushing Portion for One-Hand Operation

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Solution Overview

Problem

Existing foam discharge containers require a two-hand operation to dispense foam, which is inconvenient and inefficient, and also struggle with dispensing liquid agents effectively as liquids rather than foams.

Innovation Solution

A foam discharge container design featuring a foam discharge cap and head with a pushing portion that maintains a constant distance between the discharge port and the target body, allowing for one-hand operation by using a pushing mechanism to discharge foam or liquid agents, incorporating a foamer mechanism to mix liquid agents with air and create foam.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a traditional foam discharge container uses multiple discrete discharge ports arranged in specific patterns, then foam can be discharged in molded shapes, but the device requires two-hand operation and cannot easily dispense liquid agents

Engineering Contradiction:
Improveone-hand operationVSAvoiddischarge port configuration
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The discharge port is divided into multiple independent nozzles (first discharge nozzle and second discharge nozzle) with different structures. The first discharge nozzle has a larger diameter for liquid agent discharge, while the second discharge nozzle has a smaller diameter for foam discharge. This segmentation allows the single discharge port to perform multiple functions, enabling one-hand operation while maintaining the capability to dispense both liquid agents and foamed products.

Inventive Principle:
Principle #1Segmentation

2Productivity

If the discharge port is designed for molded foam discharge with multiple small ports, then foam shaping is achieved, but liquid agent discharge efficiency is reduced

Engineering Contradiction:
Improveliquid agent discharge efficiencyVSAvoidfoam shape accuracy
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

Different regions of the discharge port are given different properties: the first discharge nozzle has a larger diameter and is positioned to discharge liquid agents efficiently, while the second discharge nozzle has a smaller diameter and is positioned to create molded foam shapes. This local differentiation of discharge port characteristics allows simultaneous optimization of both liquid agent discharge efficiency and foam shape accuracy without compromise.

Inventive Principle:
Principle #3Local quality

3Ease of operation

If the discharge port is positioned close to the target body for one-hand operation, then ease of use is improved, but foam shape formation and liquid agent control become difficult

Engineering Contradiction:
Improveone-hand operation convenienceVSAvoiddischarge control precision
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The discharge port is designed with movable components including a piston that can move within the container body. This dynamic structure allows the discharge port to adjust its position and opening degree during operation, enabling precise control of discharge amount and timing even when positioned close to the target body for one-hand operation. The movable piston provides dynamic adjustment capability that maintains discharge control precision while achieving operational convenience.

Inventive Principle:
Principle #15Dynamics

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

Enables convenient one-hand operation for receiving foam on a target body and allows for precise shaping of foam into intended shapes, while also facilitating the discharge of liquid agents as needed, enhancing usability and efficiency.

Implementation Method 1

containers (foam discharge containers) in which various liquid materials (liquid agents) such as hand soap, facial cleanser, dishwashing detergent, and hair dressing agent are mixed with air to be foamed

Methodology Applied
Scientific EffectFoaming: Foam

Data Source

PatentEP4039370B1Foam discharge container
Publication Date: 2023.06.14 KAO CORP
  • EP4039370B1 patent drawingFigure 1
  • EP4039370B1 patent drawingFigure 2
  • EP4039370B1 patent drawingFigure 3

AI summary

A foam discharge container (100) is a foam discharge container (100) for discharging foam in response to a pushing operation, and includes a discharge port which is opened in a direction opposite to a pushing direction of the pushing operation and discharges foam, and a pushing portion (85) that keeps the distance between a discharge target body (40) receiving foam and the discharge port constant.