Nested Nozzle Container Structure for Air-Tight Content Dispensing
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Solution Overview
Problem
Existing containers for adhesives and sealing agents lack adequate sealability, leading to air permeation and deterioration of contents due to insufficient protection of the application distal end portion and the inability of the deformable pressure region to effectively apply pressure.
Innovation Solution
A container design featuring an inner container with a nozzle portion, an outer tubular container made of hard resin, elastomer-covered opening portions, and a cap that covers the nozzle, enhancing air barrier properties and facilitating easy expulsion of contents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the application distal end portion is not fully accommodated in the housing and only partially covered by a closing cap, then the device structure is simpler, but the sealability of the container is insufficient and the application distal end portion is not fully protected
Solution Approach 1:
The patent implements a nested structure where the closing cap is inserted into the housing, and the application distal end portion is accommodated within the closing cap. This nested arrangement ensures that the application distal end portion is fully protected while maintaining a compact and integrated device structure, resolving the contradiction between structural simplicity and sealability.
2Device complexity
If the plate spring is not pressed at the free end portion, then the device structure is simpler, but pressure cannot be applied to the container and the plate spring does not flex
Solution Approach 1:
The plate spring is designed to be pressed by the user's finger during normal operation, allowing the user to directly apply pressure to the container through the flexible plate spring. This self-service mechanism eliminates the need for additional complex pressure application devices while ensuring effective pressure can be applied when needed.
3Reliability
If the housing is made fully sealable, then the air barrier property is improved, but the pressure region cannot be deformable to allow pressure application
Solution Approach 1:
The housing is designed with differentiated local properties: the majority of the housing maintains high sealability and air barrier properties, while a specific localized region (the pressure region) is made deformable to allow finger pressing. This local quality differentiation resolves the contradiction by providing both excellent sealing and operational flexibility for pressure application.
4Device complexity
If the cap covers only the nozzle portion, then the device structure is simpler, but the nozzle portion is exposed to air and contents may deteriorate
Solution Approach 1:
The cap is nested within the housing structure, creating a layered protection system. The housing provides the primary sealable enclosure, while the cap provides additional protection for the nozzle portion. This nested arrangement ensures comprehensive protection against air permeation and content deterioration while maintaining structural integration.
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
The design improves air barrier properties, prevents content deterioration, and allows easy expulsion of contents while maintaining structural integrity and preventing accidental discharge.
Implementation Method 1
a pressing portion formed of an elastomer, provided at the outer peripheral wall, and covering the opening portion
Data Source
AI summary
A container including: an inner container having a nozzle portion that discharges loaded content; an outer container that is tubular, is formed of a hard resin, contains the inner container, and has an outer peripheral wall in which an opening portion is formed; a pressing portion formed of an elastomer, provided at the outer peripheral wall, and covering the opening portion; and a cap that is attachable to and removable from the outer container, and that covers the nozzle portion that projects out from the outer container.