Household tissue storage container
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Solution Overview
Problem
Conventional household tissue cases with sliding lids face issues of tissue projection and jamming during lid closure, and difficulty in accessing tissues deep under the frame member due to the frame member's design.
Innovation Solution
A household tissue case with a dispensing opening off-center and a frame member made of an elastic material with letter-Z-shaped cuts, preventing excessive tissue projection while allowing easy removal of tissues from any direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a frame member with a wide opening is used to allow easy tissue removal, then ease of operation is improved, but the next household tissue sticks out excessively causing jamming during lid closure
Solution Approach 1:
The frame member is segmented into multiple restricting portions (first, second, third restricting portions) that are spatially distributed. These segments create multiple control points for tissue projection limitation, allowing the tissue to be guided through the opening without excessive protrusion that would cause jamming.
Solution Approach 2:
Different portions of the frame member have different functional qualities: the first restricting portion controls tissue projection from one side, the second restricting portion controls projection from another side, and the third restricting portion provides additional control. This local differentiation allows precise control of tissue emergence while maintaining overall ease of removal.
2Object-generated harmful factors
If a frame member with a small opening is used to prevent tissue jamming, then tissue projection is controlled, but it becomes difficult to pick and pull out tissues situated deep under the frame member
Solution Approach 1:
The frame member is divided into multiple restricting portions positioned at different locations and orientations. This segmentation creates a distributed control system that limits tissue projection at multiple points simultaneously, preventing jamming while maintaining sufficient opening area for finger access to deep tissues.
Solution Approach 2:
The restricting portions are arranged in three-dimensional space with different spatial orientations (first restricting portion in one direction, second restricting portion in another direction). This spatial arrangement controls tissue projection in multiple dimensions while preserving access pathways for retrieving deep tissues.
3Device complexity
If the dispensing opening is positioned off-center, then the frame member can extend to cover the opening without overlapping restricting portions, but the lid must be positioned asymmetrically affecting balance
Solution Approach 1:
The dispensing opening is deliberately positioned off-center, creating an asymmetric configuration. The frame member and restricting portions are accordingly arranged asymmetrically, with the first, second, and third restricting portions positioned to match the off-center opening location, allowing the lid to slide smoothly without overlapping issues.
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 solution effectively suppresses tissue projection without hindering deep tissue removal, ensuring smooth operation and airtightness, enhancing usability and efficiency.
Implementation Method 1
a frame member (14) made of an elastic member, restricting portions (14b) being disposed at opposite ends of the frame member (14) in a short-side direction of the casing (10) in a plan view and extending in such directions as to cover the dispensing opening (11)
Data Source
Figure 1A~1B
Figure 2
Figure 3
AI summary
The length of a projection of a household tissue is suppressed without hampering the removal of household tissues situated at a depth under a frame member. The frame member (14) is attached to the perimeter of the dispensing opening (11). The frame member is made of elastic material. The opposite ends of the frame member in the short-side direction of the casing (10) in a plan view have restricting portions (14b) that extend in such directions as to cover the dispensing opening (11). The restricting portions (14b, 14b) are arranged so as not to overlap each other such that the tips thereof are staggered in the long-side direction of the casing in a plan view, thereby forming a letter-Z shaped cut in the frame member.