Sheet storage box
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional sheet storage boxes face issues with smooth removal and retention of tissue paper due to excessive gaps and sharp projections, leading to paper falling back into the box or requiring excessive force, especially when the shape and size of the projections do not align with the folded tissue paper.
Innovation Solution
The design features two pairs of smooth convex shape curved opening rims at corners with varying heights, forming a nonlinear symmetry when rotated, and depressions between these rims to create a convex curve that reduces resistance and prevents paper from falling back, allowing easy sliding and retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sharp projections are used at the opening to prevent paper from falling back, then paper retention is improved, but the removal process becomes difficult and requires excessive force
Solution Approach 1:
The patent replaces sharp projections with smooth convex curved rims at the opening. The curved shape provides gentle guidance for the paper while preventing it from falling back, eliminating the need for excessive force during removal. The curvature creates a natural flow path that maintains both retention and ease of operation.
Solution Approach 2:
The patent applies different rim heights at different locations around the opening. The first and second rim portions have different heights from the third and fourth rim portions, creating localized variations that guide the paper through specific paths. This local differentiation optimizes both retention and removal without requiring uniform sharp projections throughout.
2Ease of operation
If the opening area is increased to allow easy paper removal, then ease of operation is improved, but the spatial area occupied by the box increases
Solution Approach 1:
The smooth convex curved rims create an efficient use of the opening space. The curved geometry allows the opening to be compact while still providing adequate clearance for paper removal. The curvature optimizes the spatial arrangement, enabling easy operation within a minimized footprint.
3Ease of operation
If excessive gaps are present at the opening center, then paper removal is easier, but the paper cannot be properly retained and falls back into the box
Solution Approach 1:
The smooth convex curved rims eliminate excessive gaps by providing continuous curved surfaces that guide the paper. The curvature creates natural retention points without sharp edges, allowing the paper to be easily removed while preventing it from falling back due to the gentle constraining effect of the curved paths.
Solution Approach 2:
The patent creates localized rim structures with different heights at different positions around the opening. This local variation in rim height creates specific flow paths that control paper movement, providing both ease of removal and proper retention by guiding the paper through optimized local geometries rather than relying on uniform gaps.
Data Source
AI summary
Conventional sheet storage boxes have problems that the sheet storage box with a sheet-fixing sheet pasted on the sheet-removing opening is wasteful from the point of view of resources and that, in the case of the sheet storage box without the sheet-fixing sheet pasted on the opening, the fixing of sheet becomes weaker as the opening itself becomes larger due to the excessively wide rim of the opening and when the rims of the opening are made too close, the rim of the opening partially becomes smaller and the resistance to remove the sheets becomes too large. To solve the above problems of the conventional sheet storage boxes, the present invention provides a sheet-removing opening by effectively forming the portion to remove the sheet easily from the opening and the portion to easily catch the sheet wherein, the shape of the rims of the opening of the sheet storage box designed to remove the sheet is formed in such a way that the movement of the sheet is reduced by adequately reducing the spatial area of the opening and the rims of the opening are converted to convex shape smooth curves to smoothly slide the sheet.