Elastic Wiping Piece Reduces Pressure and Scattering in Applicator Containers
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Solution Overview
Problem
Existing applicator-equipped containers face issues with pressure increase during applicator insertion and content scattering during extraction, as the inner container pressure fluctuates when the applicator is inserted or extracted, potentially causing contents to drip or scatter.
Innovation Solution
An elastically deformable annular wiping piece with a protrusion inside the container body, which reduces friction and pressure during insertion by creating a gap between the applicator and the wiping piece, and effectively rubs off extra contents during extraction by deforming upward to contact the applicator's outer surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the applicator is inserted into the container body, then the applicator can be used to apply contents, but the pressure of the inner portion of the container body excessively increases
Solution Approach 1:
The wiping piece is made of elastic material that can deform flexibly. When the applicator is inserted, the wiping piece elastically deforms to accommodate the applicator, creating a gap that reduces pressure buildup while maintaining the sealing function to prevent content leakage.
2Reliability
If the wiping piece is made tightly fitting to rub off extra contents, then content removal is effective, but friction increases and pressure builds up during insertion
Solution Approach 1:
The wiping piece transitions from a static tightly-fitting structure to a dynamic elastic structure. During insertion, it deforms to create a gap reducing friction and pressure. During extraction, it returns to its original shape to provide effective rubbing action for removing extra contents.
Solution Approach 2:
The wiping piece changes its physical parameters (shape, volume, contact area) based on the operational phase. During insertion, it expands/deforms to reduce contact and friction. During extraction, it contracts to increase contact for effective content removal.
3Ease of operation
If the applicator is extracted from the container body, then content application can proceed, but contents may scatter to the outside due to pressure increase
Solution Approach 1:
The elastic wiping piece maintains a sealing relationship with the container body during applicator extraction. It deforms to allow the applicator to pass through while preventing contents from scattering, and then returns to its original shape to maintain the seal.
4Reliability
If the wiping piece is made rigid for effective rubbing, then content removal is improved, but friction and pressure increase during insertion
Solution Approach 1:
The wiping piece utilizes elastic deformation to change its physical parameters dynamically. During insertion, it deforms to reduce friction and pressure. During extraction and rubbing, it maintains structural integrity for effective content removal, eliminating the need for complex mechanical structures.
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
Prevents excessive pressure increase in the container body during insertion and prevents content scattering during extraction, ensuring efficient and clean application of contents by reducing friction and facilitating easy deformation of the wiping piece.
Implementation Method 1
an annular wiping piece that is disposed inside the container body and is elastically deformable
Implementation Method 2
the rod of the applicator is moved so as to rub with respect to the inner periphery of the wiping piece, and contents attached to the outer peripheral surface of the rod of the applicator are rubbed off by the wiping piece
Data Source
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AI summary
An applicator-equipped container capable of rubbing off extra contents when extracting the applicator from a container body and of preventing pressure of the inner portion of the container body from excessively increasing when inserting the applicator is provided. The applicator-equipped container (A) includes: a container body (1) that contains contents; an applicator (20) that is inserted in the container body (1) from an inlet (2) of the container body (1); and an annular wiping piece (32) that is disposed in the container body (1), and is elastically deformable so that the rod (22) of the applicator (20) is inserted into an inner periphery of the wiping piece is rubbed to and comes into contact with the outer periphery of a rod (22), wherein a protrusion (34) protruding to the inside of an inner edge of the wiping piece (32) is provided in the inner periphery of the wiping piece (32).