Coin Tissue Case with Drawer Limiting Mechanism for Sanitary Handling

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Solution Overview

Problem

Existing coin tissue packaging methods lead to unsanitary conditions and inconvenience due to the need to handle multiple tissues from a plastic bag, causing cross-contamination and requiring an extra water container for use.

Innovation Solution

A portable case with a slidable drawer system that limits pull-out distance, includes a wet tissue production part for soaking, and a tilt prevention mechanism, allowing for sanitary handling and use of coin tissues without external water containers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If coin tissues are stored in a plastic bag or zipper bag, then the tissues can be kept in a compact and portable form, but the user's hand pollutes the coin tissues during handling

Engineering Contradiction:
ImproveportabilityVSAvoidsanitary contamination
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The storage system is segmented into a housing containing a drawer that can be pulled out. This segmentation allows the coin tissues to be stored in a protected environment while providing controlled access, eliminating the need to handle the entire bag and reducing contamination risk.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The drawer acts as an intermediary between the user and the coin tissues. By pulling out the drawer, the user can access the tissues without opening the main housing, creating a barrier that protects the tissues from direct contact with the user's hand and external contaminants.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If coin tissues are stored in a plastic bag, then storage is simple and compact, but an extra water container is needed for use

Engineering Contradiction:
Improvestorage simplicityVSAvoidconvenience of use
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The water container and coin tissue storage are merged into a single integrated case. The housing contains both the drawer for storing coin tissues and a water container, eliminating the need for separate containers and simplifying the overall system while improving convenience.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The housing serves multiple functions: it stores the coin tissues in the drawer, contains the water container, and provides a structure for soaking the tissues. This multi-functionality reduces the number of separate components needed and improves ease of use.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Ease of operation

If the drawer can be pulled out completely, then easy access to coin tissues is achieved, but the pull-out distance is uncontrolled and may cause instability

Engineering Contradiction:
Improveaccess to tissuesVSAvoiddrawer stability
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The guide groove is pre-formed in the housing to define the pull-out path and distance. This preliminary structural arrangement ensures that when the user pulls out the drawer, it moves along a controlled trajectory and stops at the appropriate position, providing both easy access and stability.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The guide groove structure automatically limits the pull-out distance without requiring additional active control mechanisms. The drawer itself, guided by the groove, self-regulates its movement, simplifying the system while maintaining stability and ease of access.

Inventive Principle:
Principle #25Self-service

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 case maintains sanitary conditions by limiting exposure and allowing easy access to coin tissues, enabling them to be used directly as wet tissues without additional tools, enhancing convenience and hygiene.

Implementation Method 1

a coin tissue, which is compressed into a coin shape and is in a dehydrated state, swells up like general wet tissue when water is poured

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Data Source

PatentUS10988283B2Case for coin tissue
Publication Date: 2021.04.27 CLEANZONE CO LTD
  • US10988283B2 patent drawing
  • US10988283B2 patent drawing
  • US10988283B2 patent drawing

AI summary

A case for coin tissue is disclosed. In one aspect, the case includes a drawer housing including an insertion space and a push-in and pull-out portion communicating with the insertion space. The case also includes a drawer configured to be pushed into or pulled out of the insertion space in a slidable manner through the push-in and pull-out portion. The drawer includes an upper opening portion. A plurality of coin tissues are placed in one or more rows in the drawer. The case further includes a pull-out distance limiting part provided between an inner surface of the drawer housing and an outer surface of the drawer, and configured to limit a pull-out distance of the drawer to a first distance. According to at least some embodiments, the case for coin tissue can sanitarily preserve a coin tissue, and is portable, and convenient.