Two-Component Cartridge Dispensing Element Integrated Wiping Mechanism

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Solution Overview

Problem

Existing two-component cartridges face challenges in efficiently removing residual material that has extruded from discharge openings after the discharge element is removed, requiring a separate tool and additional steps, which can be inconvenient and time-consuming.

Innovation Solution

A discharge element with an integrated wiping device featuring a wiping edge and secondary edge, designed to fit the cartridge's neck shape, allows for immediate cleaning of residual material upon removal, with the option of a pin for central outlet openings and a handle-like design for easy handling and rotation to scrape off material from radial openings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a separate tool is used to remove residual material from the cartridge neck, then the cleaning function is provided, but the number of tools and操作步骤 increases

Engineering Contradiction:

Improveconvenience of cleaningVSAvoidnumber of tools

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent integrates a wiping device directly onto the discharge element, combining the discharge function and cleaning function into a single component. The wiping device includes a wiping edge with a wiping surface that contacts the front end of the cartridge neck, and a secondary edge that contacts the radial outside surface, eliminating the need for separate cleaning tools.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The discharge element is designed to perform multiple functions: it serves as both the discharge/mixing component and the cleaning tool. The wiping device attached to the discharge element enables the user to clean residual material from both the front end and radial outside of the cartridge neck using the same component that was already in hand.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Productivity

If the discharge element is removed from the cartridge, then the discharge function is completed, but residual material remains on the neck requiring additional cleaning steps

Engineering Contradiction:

Improvecleaning efficiencyVSAvoidtime for cleaning

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The wiping device is pre-attached to the discharge element, so that as soon as the discharge element is removed from the cartridge, the cleaning tool is already in position and ready for use. This preliminary arrangement eliminates the need to put down the discharge element and search for a separate cleaning tool, allowing immediate cleaning of residual material.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The design enables continuous useful action by maintaining the cleaning capability throughout the discharge element removal process. The wiping device allows the user to transition seamlessly from the discharge function to the cleaning function without interruption or loss of tool, keeping the useful action continuous.

Inventive Principle:

Principle #20Continuity of useful action

Data Source

PatentEP2556898B1Élément de décharge pour une cartouche à deux composants

Publication Date: 2016.11.02 WURTH INT AG

Figure 1~3
Figure 4

AI summary

A dispensing element for a two-component cartridge is proposed. This dispensing element, also referred to as a forced mixer, serves to mix and dispense the material dispensed from the two-component cartridge. A scraper (20) with a guide pin and two scraper edges (18) extending laterally opposite the guide pin is formed on the side of this dispensing element, the scraper edges (18) running longitudinally along the dispensing element. With the aid of this scraper (20), the material pressed out of the dispensing openings of the two-component cartridge and adhering there can be scraped off after use.