Tissue Paper Case Projections for Sequential Sheet Removal
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Solution Overview
Problem
Existing tissue paper supply cases require additional members and labor to accommodate different sizes, and compressible elastic members can cause deformation in non-boxed tissue papers, making it inconvenient to take out tissue papers sequentially.
Innovation Solution
A tissue paper supply case with a case body, a lid having tapered projections, and a platform member with opposing tapered projections to securely hold tissue papers of various sizes at the center of the take-out hole, allowing sequential removal without additional members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a partition plate is inserted into grooves to accommodate different tissue paper sizes, then the tissue paper can be contained according to size, but additional members and insertion work are required, increasing device complexity and operation time
Solution Approach 1:
The lid projections and platform projections are merged into a single integrated structure that serves dual purposes: guiding the tissue paper during insertion and providing size-specific retention features. This eliminates the need for separate partition plates and grooves, reducing device complexity while maintaining adaptability to different tissue paper sizes.
Solution Approach 2:
The projections on the lid and platform are designed to provide universal guidance and retention for multiple tissue paper sizes simultaneously. The tapered geometry allows the same structure to accommodate various widths without requiring size-specific components, making the case universally adaptable while maintaining simple structure.
2Ease of operation
If compressible elastic members are used to adjust tissue paper position, then the tissue paper can be pressed against side surfaces, but non-boxed tissue papers undergo curvature or deformation, worsening tissue paper shape stability
Solution Approach 1:
Instead of using a continuous compressible elastic member that deforms tissue paper, the positioning function is segmented into discrete rigid projections on the lid and platform. These projections provide localized contact points that guide and position the tissue paper without applying distributed compressive force that causes curvature or deformation.
Solution Approach 2:
The rigid projections serve as intermediaries between the case structure and the tissue paper, providing mechanical guidance and positioning without direct compression. The projections transfer the positioning function from a compressive mechanism to a geometric constraint mechanism, preserving tissue paper shape while achieving proper positioning.
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
Disclosed is a tissue paper supply case comprising a case body for containing tissue paper, a lid having a slot-like take-out hole for taking out the tissue paper therethrough, a platform member mounted within the case body for placing the tissue paper thereon, and means for energizing the platform member from the bottom of the case body toward the lid, wherein the lid is provided on its inner surface with a plurality of lid projections formed in parallel rows to the take-out hole on both sides of the take-out hole, which lid projections are tapered each having a protrusion height becoming larger with increasing distance from the take-out hole, and the platform member is provided on its upper surface with a plurality of platform projections formed in parallel rows to the take-out hole on both sides of the position facing the take-out hole, which platform projections are tapered each having a protrusion height becoming larger with increasing distance from the position facing the take-out hole and wherein the plurality of lid projections formed on the lid and the plurality of platform projections formed on the platform member are placed oppositely alternating with each other.