Refill Container Fitting Structure for Easy Replacement and Holding
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Solution Overview
Problem
Existing refill containers in replacement containers require a simple configuration for easy attachment and removal from outer containers while ensuring secure holding during use, with a focus on resource savings.
Innovation Solution
A refill container design featuring a flange portion, vertical peripheral wall with cutout portions, and a refill side fitting portion that fits with an outer container side fitting portion, allowing for easy attachment and removal using leverage principles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If the refill container is designed with a simple configuration to save resources, then the amount of plastic used is reduced, but the ease of attachment and removal from the outer container deteriorates
Solution Approach 1:
The refill container is divided into functional segments: a flange portion for positioning, a vertical peripheral wall with cutout portions for leverage-based removal, and a fitting portion for secure attachment. This segmentation allows each part to perform its specific function efficiently while keeping the overall structure simple and resource-efficient.
Solution Approach 2:
The cutout portions in the vertical peripheral wall enable dynamic interaction during removal. When force is applied at the cutout portions, the wall can flex and deform elastically, allowing the refill container to be easily removed from the outer container without requiring complex mechanical structures.
2Ease of operation
If the refill container is designed to be easily removed from the outer container, then the ease of replacement is improved, but the reliability of holding the refill container during use deteriorates
Solution Approach 1:
Different parts of the refill container have different mechanical properties tailored to their functions. The fitting portion has high strength and rigidity for secure attachment during use, while the vertical peripheral wall has cutout portions that allow elastic deformation for easy removal. This local differentiation of properties resolves the contradiction between secure holding and easy replacement.
Solution Approach 2:
The vertical peripheral wall is designed to be dynamically responsive: during normal use, the fitting portion maintains a secure, rigid connection; during removal, force applied at the cutout portions induces elastic deformation that facilitates easy detachment. This dynamic behavior allows the same structure to provide both secure holding and easy replacement.
3Reliability
If the refill container uses a complex configuration to ensure secure holding, then the holding reliability is improved, but the device complexity increases
Solution Approach 1:
The refill container is divided into functional segments: a flange portion for positioning, a vertical peripheral wall with cutout portions for leverage-based removal, and a fitting portion for secure attachment. This segmentation allows each part to perform its specific function efficiently while keeping the overall structure simple and resource-efficient.
Solution Approach 2:
The cutout portions in the vertical peripheral wall enable the structure to serve itself during removal. When force is applied at the cutout portions, the wall flexes and deforms elastically, automatically facilitating removal without requiring additional mechanical components or complex mechanisms.
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
Facilitates easy replacement and secure holding of the refill container within the outer container with minimal plastic usage, leveraging the cutout portions to efficiently release the fitting mechanism.
Implementation Method 1
the vertical peripheral wall portion is provided with a plurality of cutout portions... when the refill container is attached to the outer container, a gap that becomes larger from a top end toward a bottom surface portion of a refill storage portion is formed between an outer side surface of the refill container body and an inner side surface of the refill storage portion
Data Source
Figure 1
Figure 2A~2B
Figure 3A
AI summary
Provided are a refill container and a replacement container that can be easily replaced and can be favorably held by an outer container with a simple configuration. A refill container (10) includes a refill container body (11) including a bottom surface portion (11a) and a side surface portion (11b) defining a storage space (S) for storing a content, a flange portion (12) protruding outward from the side surface portion (11b), a vertical peripheral wall portion (13) suspended from an outer edge of the flange portion (12), a refill side fitting portion (14) protruding from an inner surface of the vertical peripheral wall portion (13), and a plurality of cutout portions (15) provided in the vertical peripheral wall portion (13), in which the refill side fitting portion (14) and an outer container side fitting portion (23b) fit each other, so that the refill container (10) is attached to an outer container (20), and the side surface portion (11b) is formed in such a manner that a gap (G) that becomes larger from the top surface side toward the bottom surface portion (11a) is formed between the side surface portion (11b) and an inner surface of the outer container (20). A replacement container (100) includes the refill container (10) and the outer container (20).